Composite die

Abstract

The utility model belongs to the technical field of cold stamping forming of metal parts, and discloses a composite die which comprises a hole flanging male die and a punching male die, a hole flanging female die is arranged on the outer side of the punching male die, an upper push block is arranged on the outer side of the hole flanging female die, and a forming female die is arranged on the outer side of the upper push block. The upper push block is provided with an outer edge, the outer edge of the upper push block is movably connected to the forming female die in a clamped mode, and the upper push block is movably connected with the hole flanging female die in a sleeved mode. An opening is formed in the center of the hole flanging male die, the inner wall of the opening of the hole flanging male die is matched with the outer wall of the punching male die, a forming male die is arranged on the outer side of the hole flanging male die, and a discharging plate is arranged on the outer side of the top of the forming male die. According to the utility model, the combined machining of three working procedures of forming, punching and hole flanging can be realized, and the purposes of shortening the production period, improving the production efficiency and reducing the production cost are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cold stamping forming of metal parts, and particularly relates to a composite die. Background Art

[0002] As the output of arc extinguishing chamber increases, the existing stamping process of sealing ring parts is 4 stampings, such as Figure 2 As shown, the stamping process includes material collection, drawing, forming, punching, and drilling. The process is complex, inefficient, and requires a lot of manpower, which limits the potential for capacity expansion. Further breakthroughs and innovations are urgently needed in the processing technology and mold structure, and the integration of multiple processes can be achieved to improve production efficiency and meet production needs.

[0003] The Chinese patent publication number is CN218517552U, and the name is a patent for a composite stamping die for punching, flanging and forming, which includes an upper die frame and a lower die frame, and a punching punch, a flanging forming concave module, a forming punch and a flanging punch are provided between the upper die frame and the lower die frame; the lower end of the flanging forming concave module is provided with a forming die groove, and a flanging die hole with two ends passing through is provided above the forming die groove, and the lower end of the flanging die hole is communicated with the upper end of the forming die groove; the flanging forming concave module and the punching punch are connected to the lower end of the upper die frame, and the lower end of the punching punch is placed in the flanging die hole; the forming punch is provided with a through hole groove with two ends passing through and extending longitudinally, and the through hole groove is inserted with a flanging punch, and the upper end of the flanging punch protrudes from the upper surface of the forming punch; the flanging punch is provided with a punching die hole for the lower end of the punching punch to be inserted. Although this patent application can realize punching, hole turning and forming, the device structure is complex and difficult to install and maintain. Utility Model Content

[0004] In order to overcome the problems existing in the above-mentioned prior art, the purpose of the present utility model is to provide a composite mold, which can realize the composite processing of three steps of forming, punching and flanging through the cooperation of the hole-turning die, the hole-turning punch and the upper push plate, so as to shorten the production cycle, improve production efficiency and reduce production costs.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A composite mold comprises: a hole-turning punch and a punching punch, a hole-turning die is provided on the outside of the punching punch, an upper push block is provided on the outside of the hole-turning die, and a forming die is provided on the outside of the upper push block; the upper push block has an outer edge, the outer edge of the upper push block is movably clamped on the forming die, and the upper push block and the hole-turning die are movably sleeved; the center of the hole-turning punch has an opening, the inner wall of the opening of the hole-turning punch cooperates with the outer wall of the punching punch, the outside of the hole-turning punch is provided with a forming punch, and a stripping plate is provided on the outer side of the top of the forming punch.

[0007] Optionally, the end of the punching punch exceeds the end of the punching die.

[0008] Optionally, the end of the punching punch exceeds the end of the punching die.

[0009] Optionally, a groove is provided on the inner side of the end of the hole-turning die, and the end of the hole-turning punch has a protrusion that matches the groove of the hole-turning die.

[0010] Optionally, the raised outer wall of the punch cooperates with the side wall of the groove of the die.

[0011] Optionally, the end of the forming punch exceeds the end of the punch.

[0012] Optionally, the forming punch and the stripping plate are movably connected.

[0013] Optionally, both the stripper plate and the forming die have through holes.

[0014] Optionally, the end face of the forming die is arranged opposite to the end face of the stripping plate.

[0015] Optionally, the outer side wall of the forming punch and the inner side wall of the forming die are in the same axial direction.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This new design utilizes a triple-combined die structure, sequentially completing punching, hole-turning, and forming operations. These three operations, while independent of each other, coordinate with each other to ensure material flow and deformation in the desired direction while ensuring the required flatness of the flange. Through the design and application of a three-in-one die for sealing ring forming, punching, and hole-turning, this new design not only further enhances the sealing ring stamping process, shortens production cycles, and improves stamping efficiency, but also reduces equipment energy consumption and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are merely schematic and are used to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. In the drawings:

[0019] Figure 1 Schematic diagram of the workpiece after processing;

[0020] Figure 2 Schematic diagram of the flow of the existing workpiece processing method (a) and the schematic diagram of the flow of the workpiece processing method of the present invention (b);

[0021] Figure 3 This is a schematic diagram of the utility model before processing a workpiece;

[0022] Figure 4 This is a schematic diagram of the workpiece processing process of the utility model.

[0023] Among them, 1. Push plate; 2. Flipping die; 3. Forming die; 4. Punching punch; 5. Unloading plate; 6. Forming punch; 7. Flipping punch; 8. Workpiece. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0025] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an element centered thereon. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] The present invention will be described in detail below with reference to the accompanying drawings.

[0028] A composite mold includes: a hole-turning punch 7 and a punching punch 4, a hole-turning die 2 is provided on the outside of the punching punch 4, an upper push block 1 is provided on the outside of the hole-turning die 2, and a forming die 3 is provided on the outside of the upper push block 1; the upper push block 1 has an outer edge, the outer edge of the upper push block 1 is movably clamped on the forming die 3, and the upper push block 1 and the hole-turning die 2 are movably sleeved; the center of the hole-turning punch 7 has an opening, the inner wall of the opening of the hole-turning punch 7 cooperates with the outer wall of the punching punch 4, the outer side of the hole-turning punch 7 is provided with a forming punch 6, and the outer side of the top of the forming punch 6 is provided with a discharge plate 5.

[0029] The workpiece 8 is pressed down for punching by the punching punch 4, and is punched by the punching die 2 and the punch 7, and is formed by the forming die 3 and the forming punch 6, thereby realizing the one-step operation of punching, punching and forming, and unloading can be achieved by the self-gravity of the push-up block 1.

[0030] Example 1

[0031] like Figure 1 As shown, a composite mold of the present invention includes a punching punch 7 and a punching punch 4. A punching die 2 is disposed on the outside of the punching punch 4. An upper push block 1 is disposed on the outside of the punching die 2. A forming die 3 is disposed on the outside of the upper push block 1. The end of the punching punch 4 extends beyond the end of the punching die 2. The upper push block 1 has an outer edge that is movably engaged with the forming die 3, and the upper push block 1 and the punching die 2 are movably connected.

[0032] The punch die 7 and the die 2 are used for punching holes.

[0033] The center of the punching punch 7 has an opening, the inner wall of the opening of the punching punch 7 matches the outer wall of the punching punch 4, the outer side of the punching punch 7 is provided with a forming punch 6, and the outer side of the top of the forming punch 6 is provided with a stripping plate 5.

[0034] The inner wall of the opening of the punch 7 also functions as a punching die, and is used to cooperate with the punch 4 to complete the punching part. The forming die 3 and the forming punch 6 are used to complete the rib forming, so that the flange of the workpiece 8 meets the flatness requirements while ensuring the height of the positioning rib.

[0035] The inner end of the punching die 2 is formed with a groove, and the end of the punch 7 has a projection that mates with the groove of the punch 2. The outer wall of the projection of the punch 7 mates with the side wall of the groove of the punch 2. The end of the forming punch 6 extends beyond the end of the punch 7, and the outer end of the forming punch 6 is movably connected to the side wall of the stripper plate 5. The stripper plate 5 and the forming die 3 both have through holes and are mounted on a shaft.

[0036] The end face of the forming die 3 is opposite to the end face of the stripper plate 5, and the through hole of the forming die 3 and the through hole of the stripper plate 5 are in the same axial direction. The outer wall of the forming punch 6 and the inner wall of the forming die 3 are in the same axial direction.

[0037] Example 2

[0038] The following combination Figure 1 The specific implementation methods of the present utility model are further described.

[0039] The composite mold of the utility model comprises the following steps when in use:

[0040] First, the punching punch 4 and the inner wall of the hole-turning punch 7 complete the punching action.

[0041] The punching die 2 contacts the surface of the workpiece 8 and cooperates with the outer wall of the punch 7 to perform the punching action.

[0042] At this time, the end face of the forming die 3 applies compressive stress to the flange of the workpiece 8. A part of the flange is wrapped around the forming punch 6 to form a positioning rib, and the other part is pressed between the forming die 3 and the stripper plate 5.

[0043] The forming die 3 and the two end surfaces of the stripper plate 5 are compacted to complete the stamping process.

[0044] Subsequently, the unloading plate 5 and the upper push block 1 complete the unloading action respectively, and the entire stamping process is completed.

[0045] Unless otherwise specified, the device components involved in the above embodiments are all conventional device components, and the structural settings, working modes or control modes involved are all conventional settings, working modes or control modes in the art unless otherwise specified.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A composite mold, characterized in that: include: A hole-turning punch (7) and a punching punch (4), wherein a hole-turning die (2) is provided on the outside of the punching punch (4), an upper push block (1) is provided on the outside of the hole-turning die (2), and a forming die (3) is provided on the outside of the upper push block (1); the upper push block (1) has an outer edge, the outer edge of the upper push block (1) is movably engaged with the forming die (3), and the upper push block (1) and the hole-turning die (2) are movably sleeved; the center of the hole-turning punch (7) has an opening, the inner wall of the opening of the hole-turning punch (7) cooperates with the outer wall of the punching punch (4), the outer side of the hole-turning punch (7) is provided with a forming punch (6), and the outer side of the top of the forming punch (6) is provided with a discharge plate (5).

2. A composite mold according to claim 1, characterized in that: The end of the punching punch (4) extends beyond the end of the punching die (2).

3. A composite mold according to claim 1, characterized in that: A groove is provided on the inner side of the end of the punching die (2), and a protrusion is provided on the end of the punching die (7) to match the groove of the punching die (2).

4. A composite mold according to claim 3, characterized in that: The raised outer wall of the punch (7) matches the side wall of the groove of the punch (2).

5. The composite mold according to claim 1, characterized in that: The end of the forming punch (6) extends beyond the end of the punch (7).

6. The composite mold according to claim 1, characterized in that: The forming punch (6) and the stripping plate (5) are movably sleeved.

7. The composite mold according to claim 1, characterized in that: The stripping plate (5) and the forming die (3) both have through holes.

8. The composite mold according to claim 1, characterized in that: The end surface of the forming die (3) is arranged opposite to the end surface of the stripping plate (5).

9. The composite mold according to claim 1, characterized in that: The outer side wall of the forming convex die (6) and the inner side wall of the forming concave die (3) are located in the same axial direction.

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