Metal plate flanging forming die

Abstract

The utility model provides a metal plate flanging forming die, which relates to the field of metal material forming, and comprises a first die body and a second die body, one end of the stamping column is fixedly connected with the fixing head, and a stamping hole is formed in the other end of the stamping column; the second die body comprises a fixed seat; one end of the mounting seat is fixedly connected with one end of the fixed seat; one end of the punching core is fixedly connected with the other end of the mounting seat; the elastic piece is arranged on the periphery of the punch core in a sleeving manner, and one end of the elastic piece is attached to the mounting seat; the forming die comprises an elastic part and a supporting plate, the supporting plate is arranged on the elastic part, the other end of the elastic part abuts against the supporting plate, a through hole is formed in the supporting plate, the top of the punch core penetrates through the through hole, and the forming die is easy to maintain, long in service life and high in durability and stability.

Description

Technical Field

[0001] The utility model relates to the field of metal material forming, in particular to a sheet metal flanging forming die. Background Art

[0002] Flanging is also called punching holes or turning holes. It is to punch a slightly larger hole on a smaller base hole. It is mainly used for processing metal plates with relatively thin plate thickness to increase its strength and number of thread turns and avoid slipping. It is generally used for shallow flanging with normal hole circumference on thin plates with basically no change in thickness.

[0003] At present, most sheet metal flanging holes can only be processed by CNC punching machines. On pre-processed holes or partially hole-shaped rough materials, sometimes the holes can be processed without pre-processing. The stamping method that relies on the positional deformation of the material to turn it into a vertical edge along a certain curve is called flanging. Flanging is divided into round hole flanging and outer edge flanging. Since this production method has a relatively complicated process, high processing cost and low quality of finished products, the processing effect of sheet metal flanging holes is poor, and the processing efficiency of sheet metal flanging holes is low, which is inconvenient for people to use in processing and manufacturing. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the existing production process and provide a sheet metal flanging forming mold to solve the problems of the existing technology such as complicated process, high processing cost and low quality of finished products, poor processing effect of sheet metal flanging holes, and low processing efficiency of sheet metal flanging holes, so as to achieve the process purpose of improving processing efficiency and reducing costs.

[0005] In order to achieve the above purpose and other purposes, the utility model is implemented by including the following technical solutions: The utility model provides a sheet metal flanging forming die, the forming die comprising:

[0006] A first mold body and a second mold body, wherein the first mold body is located on the second mold body, and the first mold body includes:

[0007] Fixed head;

[0008] A stamping column, one end of which is fixedly connected to the fixed head, and the other end of which is provided with a stamping hole;

[0009] The second model comprises:

[0010] Fixed seat;

[0011] A mounting seat, one end of the mounting seat being fixedly connected to one end of the fixing seat;

[0012] A punch, one end of which is fixedly connected to the other end of the mounting seat;

[0013] An elastic member, wherein the elastic member is sleeved on the periphery of the punch, and one end of the elastic member is in contact with the mounting seat;

[0014] A support plate is provided on the elastic member, the other end of the elastic member abuts against the support plate, a through hole is provided on the support plate, and the top of the punch passes through the through hole.

[0015] In one embodiment, the punch core can move freely within the punch hole during punching and will not touch the top wall of the punch hole.

[0016] In one embodiment, there is a gap between the punch and the side wall of the through hole.

[0017] In one embodiment, the punch is disposed at a central position of the elastic member, and the punch is not in contact with the elastic member.

[0018] In one embodiment, the outer diameter of the elastic member is the same as the outer diameter of the support plate and the outer diameter of the mounting seat.

[0019] In one embodiment, the fixing seat, the mounting seat and the punch are coaxially arranged, and the outer diameter of the mounting seat is greater than the outer diameter of the punch.

[0020] In some embodiments, a support column is fixedly connected to the top of the mounting seat, and a support groove matching the support column is provided in the support plate.

[0021] In some embodiments, the outer side wall of the support column is in abutment with the inner side wall of the elastic member.

[0022] In some embodiments, a metal material is placed on the support plate, and the thickness of the metal material ranges from 1.0 mm to 8.0 mm, further can be 3.0 mm to 8.0 mm, and further can be 5.0 mm to 8.0 mm.

[0023] The utility model provides a sheet metal flanging forming die. Compared with the prior art, the utility model has the following beneficial effects: the sheet metal flanging forming die has the advantages of simple structure and easy assembly, and is very simple to maintain, has a long service life, and has high durability and stability. The sheet metal flanging forming die has the advantages of high efficiency, high precision, reduced cost, easy maintenance, and environmental safety. At the same time, the die can adjust the gap between the support plate and the punch according to actual needs to process products of different sizes and realize diversified production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a forming mold in one embodiment of the utility model.

[0025] Figure 2 It shows a cross-sectional view of the overall structure of a forming mold in one embodiment of the utility model.

[0026] Figure 3 It shows a cross-sectional view of the structure of a forming die with flanging pre-punching holes in one embodiment of the utility model.

[0027] Figure 4 It shows a cross-sectional view of the structure after flanging forming of the forming die in one embodiment of the utility model.

[0028] Figure 5 It is a schematic diagram showing the specifications of the metal material after flanging in one embodiment of the present invention.

[0029] Figure 6 Shown is a cross-sectional view of the overall structure of a molding die in a preferred example of the utility model.

[0030] In the figure: 1-fixed head, 2-punching column, 3-punch core, 4-support plate, 5-elastic member, 6-mounting seat, 7-fixed seat, 8-punching hole, 9-through hole, 10-flanged pre-punched hole, 11-first mold body, 12 second mold body, 13-support groove, 14-support column, 100-metal material. DETAILED DESCRIPTION

[0031] See also Figures 1 to 5 The following describes the implementation of the present invention through specific examples. Those skilled in the art of the present invention can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0032] like Figure 1 As shown, the utility model provides a sheet metal flanging forming die, which breaks some limitations of conventional stamping and digital punching flanging forming processes, and the forming die is an improvement on the existing thin plate flanging and forming processes.

[0033] like Figure 1 to Figure 2 As shown, in one embodiment, the forming mold is integrally installed on a riveting machine, and the overall structure of the forming mold includes: a first mold body 11 and a second mold body 12 , wherein the first mold body 11 is located on the second mold body 12 .

[0034] like Figure 1 to Figure 2 As shown, the first mold body 11 includes a fixing head 1, and the fixing head 1 can be fixed on a riveting machine.

[0035] like Figure 1 to Figure 2As shown, the first mold body 11 includes a stamping column 2 , and the top end of the stamping column 2 is fixedly connected to the bottom end of the fixing head 1 .

[0036] like Figure 1 to Figure 2 As shown, the first mold body 11 includes a punching hole 8, and the punching hole 8 is opened at the bottom end of the punching column 2. The cross section of the punching hole 8 can be an arch.

[0037] like Figure 1 to Figure 2 As shown, the second mold body 12 includes a fixing seat 7, and the fixing seat 7 can be fixed on a riveting machine.

[0038] like Figure 1 to Figure 2 As shown, the second mold body 12 includes a mounting seat 6 , and the bottom end of the mounting seat 6 is fixedly connected to the top end of the fixing seat 7 .

[0039] like Figure 1 to Figure 2 As shown, the second mold body 12 includes an elastic member 5, and the bottom end of the elastic member 5 is abutted against the top end of the mounting seat 6. Furthermore, the bottom end of the elastic member 5 can be directly placed on the surface of the mounting seat 6 or fixed on the surface of the mounting seat 6.

[0040] like Figure 1 to Figure 2 As shown, the second mold body 12 includes a support plate 4, and the support plate 4 is arranged on the elastic member 5, the top end of the elastic member 5 abuts against the bottom end of the support plate 4, and further, the top end of the elastic member 5 can also be fixed to the bottom end of the support plate 4.

[0041] like Figure 1 to Figure 2 As shown, the second mold body 12 includes a punch 3 , and the bottom end of the punch 3 is fixedly connected to the top end of the mounting seat 6 .

[0042] like Figure 1 to Figure 2 As shown, the second mold body 12 includes a through hole 9 , and the through hole 9 is opened inside the support plate 4 .

[0043] The mold is installed together with the riveting machine through the fixing head 1 and the fixing seat 7.

[0044] like Figure 6 As shown, in some embodiments, a support column 14 is fixedly connected to the top of the mounting seat 6, the outer wall of the support column 14 is in contact with the inner wall of the elastic member 5, and a support groove 13 is provided at the bottom of the support plate 4. The support column 14 and the support groove 13 match each other. When punching, the support column 14 is inserted into the support groove 13. The support groove 13 and the support column 14 can prevent the elastic member 5 from tilting during the punching process, and can also control the ejection height of the punch core 3 to avoid contact with the inner wall of the punching hole 8.

[0045] like Figure 3 As shown, the flanging pre-punching hole refers to a hole pre-punched on the material before the stamping process. The flanging pre-punching hole is usually used for subsequent processing and assembly of the product. Its size, shape, and position should meet the design requirements. The contour of the hole should be smooth and burr-free, and no defects such as breakage and cracks should occur. In one embodiment of the utility model, the role of the flanging pre-punching hole 10 is to ensure that the punch core 3 is always aligned with the flanging hole to be flanging when the mold continuously slides down for stamping, that is, it plays a guiding role.

[0046] like Figure 1 As shown, the carrier of the flanging forming of the utility model is a metal material 100, which refers to a metal formed into a thin, flat sheet, i.e., a metal plate, by an industrial method. There are many different metals that can be made into metal plates, such as aluminum, brass, copper, steel, tin, nickel and titanium, and some important metals for decorative purposes include silver, gold and platinum. These metal plates can be used in the fields of medical treatment, construction, automobile manufacturing, and metal material forming in this embodiment. The forming processes of the metal plates include laser cutting, photochemical processing, and perforation. The flanging process is a common metal processing process, which is used to form a straight wall or flange with a certain angle along the edge of a closed or unclosed curve on the flat part or curved part of the metal material 100 by using the function of a mold.

[0047] like Figure 4 , Figure 5 As shown, in some embodiments, the specifications of the metal material 100 after flanging are: flanging height a ≥ 2mm, straight section b ≥ 2mm, chamfer radius R is 0.8-1.0mm, flanging hole diameter d is 7.35-7.40mm, and the contour of the hole should be smooth and burr-free, and no defects such as breakage and cracks should be present.

[0048] The specific flanging forming principle of the utility model can be exemplified as follows:

[0049] like Figures 1 to 5 As shown, the metal material 100 is placed on the support plate 4, and the riveting machine applies pressure to the fixed head 1 so that the punching column 2 obtains a downward pressure, and the punching column 2 and the punching hole 8 move downward. When the punching column 2 contacts the support plate 4, the support plate 4 also obtains downward pressure. At this time, the elastic member 5 contracts, and the punch 3 enters the metal material 100 through the flanging pre-punching hole 10. In this process, the punch 3 squeezes part of the material of the metal material 100 into the gap between the support plate 4 and the punch 3 and forms a flanging. Then the riveting machine stops applying pressure and returns to its original position. The elastic force applied by the elastic member 5 to the support plate 4 causes the support plate 4 to automatically reset, which is convenient for the rapid processing of the sheet metal flanging hole.

[0050] Therefore, the utility model effectively overcomes various shortcomings in the prior art and has a high industrial utilization value. The above embodiments are only illustrative of the principle and effect of the utility model, and are not used to limit the utility model. Anyone familiar with this technology can modify or change the above embodiments without violating the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. A sheet metal flanging forming die, characterized in that: The molding die comprises: a first mold body and a second mold body, wherein the first mold body is located on the second mold body, wherein the first mold body comprises: Fixed head; A stamping column, one end of which is fixedly connected to the fixed head, and the other end of which is provided with a stamping hole; The second model comprises: Fixed seat; A mounting seat, one end of the mounting seat being fixedly connected to one end of the fixing seat; A punch, one end of which is fixedly connected to the other end of the mounting seat; An elastic member, wherein the elastic member is sleeved on the periphery of the punch, and one end of the elastic member is in contact with the mounting seat; A support plate is provided on the elastic member, the other end of the elastic member abuts against the support plate, a through hole is provided on the support plate, and the top of the punch passes through the through hole.

2. The molding die according to claim 1, characterized in that: The punch core can freely extend and move in the punch hole during punching and will not hit the top wall of the punch hole.

3. The molding die according to claim 1, characterized in that: There is a gap between the punch and the side wall of the through hole.

4. The molding die according to claim 1, characterized in that: The punch is arranged at the center of the elastic member, and the punch is not in contact with the elastic member.

5. The molding die according to claim 1, characterized in that: The outer diameter of the elastic member is the same as the outer diameter of the support plate and the outer diameter of the mounting seat.

6. The molding die according to claim 1, characterized in that: The fixing seat, the mounting seat and the punch are coaxially arranged, and the outer diameter of the mounting seat is greater than the outer diameter of the punch.

7. The molding die according to claim 1, characterized in that: A support column is fixedly connected to the top of the mounting seat, and a support groove matching the support column is provided in the support plate.

8. The molding die according to claim 7, characterized in that: The outer side wall of the support column is in contact with the inner side wall of the elastic member.

Images