Double-drive four-way forming die

Abstract

The utility model relates to punch die technical field especially a kind of double-drive four-way forming die, including an upper die (10) and a lower die (20), the upper die (10) includes an upper die holder (11), an upper backing plate (12), an upper clamping plate (13) and a stripper plate (14), two driving broach (15) are provided on the upper die holder (11), four bending punch (16) are provided on the upper backing plate (12), the lower surface of the stripper plate (14) is provided with a recess (141);The lower die (20) includes a lower die plate (21), a lower backing plate (22), a lower die holder (23) and a lower backing plate (24), four multifunctional forming sliders (26) are slidably installed on the lower die plate (21), each multifunctional forming slider (26) has a protrusion (261) and a punch block (262), four side forming mechanisms (27) are provided on the lower backing plate (24).The utility model has simple process, and mould cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a dual-drive four-way forming die. Background Technology

[0002] In the existing technology, the forming process of an automotive part involves first bending the free ends extending from the four corners of the part into a Z-shape to form the first bent end, then bending each of the first bent ends in the same direction to form a second bent end perpendicular to the first bent end, and finally bending each of the second bent ends inward to form a third bent end parallel to the corresponding first bent end. The above bending process is not only complex, but also involves many molds and has high manufacturing costs.

[0003] Therefore, existing technologies need to be improved and enhanced. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a dual-drive four-way forming mold with simple process and low cost.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A dual-drive four-way forming mold includes an upper mold and a lower mold. The upper mold includes an upper mold base, an upper pad, an upper clamping plate and a stripper plate arranged from top to bottom. The upper mold base is provided with two drive cutters. The upper pad is provided with four bending punches. The four bending punches pass through the upper clamping plate and the stripper plate in sequence and extend out of the stripper plate. The lower surface of the stripper plate is provided with a groove. The lower mold includes a lower template, a lower backing plate, a lower mold base, and a lower support plate arranged sequentially from top to bottom. Several lower pads are provided between the lower mold base and the lower support plate. Four multi-functional forming sliders are slidably mounted on the lower template. Each multi-functional forming slider has a protrusion that cooperates with the groove and a punch block that cooperates with the bending punch. Four side forming mechanisms are provided on the lower backing plate. Every two side forming mechanisms cooperate with one of the driving inserts.

[0006] As a further embodiment of this utility model, a plurality of nitrogen springs are provided between the upper mold base and the upper pad.

[0007] As a further embodiment of this utility model, a plurality of springs are provided between the upper pad and the stripping plate.

[0008] As a further embodiment of this utility model, a number of equal-height screws pass through the upper pad and the upper clamping plate in sequence and are connected to the stripper plate.

[0009] As a further embodiment of this utility model, the lower template is provided with four slide blocks, and each of the multifunctional forming sliders is inclined and slidably mounted on the corresponding slide block.

[0010] As a further embodiment of this utility model, the lower pad is movably fitted with four ejector pins that correspond one-to-one with the multifunctional molding slider, and each ejector pin is provided with an ejector pin spring between it and the lower mold base.

[0011] As a further embodiment of this utility model, the lower pad is also provided with two stops that correspond one-to-one with the drive insert.

[0012] As a further embodiment of this utility model, the side forming mechanism includes a driving block, two side forming blocks, two reset nitrogen springs and two limiting blocks. A reset nitrogen spring is provided between the driving block and each limiting block. Two mounting portions extend from both ends of the driving block toward the two multifunctional forming sliders, and a side forming block is provided on each mounting portion.

[0013] As a further embodiment of this utility model, the lower mold base is provided with four outer guide sleeves, and the upper mold base is provided with four outer guide posts corresponding one-to-one with the outer guide sleeves.

[0014] Compared with the prior art, the beneficial effects of this utility model are: Due to the above structural design, namely, the upper die is equipped with two driving cutters, four bending punches and a groove on the stripper plate, and the lower die is equipped with four multi-functional forming sliders and four side forming structures, four-way multiple bending forming of the product can be realized. This not only simplifies the process, but also reduces the mold cost, and can meet the increasingly high requirements of modern industry and production for bending molds. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the structure during mold opening in an embodiment of this utility model; Appendix Figure 2 This is a schematic diagram of the structure during mold closing in an embodiment of this utility model; Appendix Figure 3 This is a top view of an embodiment of the present utility model.

[0016] The labels in the diagram are as follows: 10 - Upper mold, 20 - Lower mold; 11-Upper mold base, 12-Upper backing plate, 13-Upper clamping plate, 14-Stripping plate, 15-Drive insert, 16-Bending punch, 17-Nitrogen spring, 18-Spring, 19-Equal height screw; 141 - Groove; 21-Lower template, 22-Lower backing plate, 23-Lower mold base, 24-Lower support plate, 25-Lower pad, 26-Multi-functional forming slider, 27-Side forming mechanism; 261-Protrusion, 262-Punch block; 211-Slide; 221-Ejector pin, 222-Ejector pin spring, 223-Stop block; 271-Drive block, 272-Side forming block, 273-Reset nitrogen spring, 274-Restriction block; 231-Outer guide sleeve; 111 - External guide post. Detailed Implementation

[0017] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. It should be pointed out that all accompanying drawings are exemplary representations. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. Example

[0021] like Figure 1 and Figure 2As shown, this application discloses a dual-drive four-way forming mold, comprising an upper mold 10 and a lower mold 20. The upper mold 10 includes an upper mold base 11, an upper pad 12, an upper clamping plate 13, and a stripper plate 14 arranged sequentially from top to bottom. The upper mold base 11 is provided with two drive inserts 15, and the upper pad 12 is provided with four bending punches 16. The four bending punches 16 pass through the upper clamping plate 13 and the stripper plate 14 in sequence and extend out of the stripper plate 14. The lower surface of the stripper plate 14 is provided with a groove 141. The lower die 20 includes a lower template 21, a lower pad 22, a lower die base 23, and a lower support plate 24 arranged sequentially from top to bottom. Six lower pads 25 are provided between the lower die base 23 and the lower support plate 24. Four multi-functional forming sliders 26 are slidably mounted on the lower template 21. Each multi-functional forming slider 26 has a protrusion 261 that cooperates with the groove 141 and a punch block 262 that cooperates with the bending punch 16. Four side forming mechanisms 27 are provided on the lower pad 22. Every two side forming mechanisms 27 cooperate with a driving insert 15. Through the above structural design, the upper die 10 is provided with two driving inserts 15, four bending punches 16, and a groove 141 provided on the stripper plate 14. The lower die 20 is provided with four multi-functional forming sliders 26 and four side forming structures 27, realizing four-way multiple bending forming of the product. This not only simplifies the process but also reduces the mold cost, which can meet the increasingly high requirements of modern industry and production for bending molds.

[0022] During operation, the upper die descends, the stripper plate first contacts and presses the product flush with the multi-functional forming slider. The upper die continues to descend, the groove of the stripper plate engages with the protrusion on the multi-functional forming slider, first performing a Z-shaped bend on the free end of the product to form the first bent end. The upper die continues to descend, the bending punch engages with the bending block of the multi-functional forming slider to bend the first bent end of the product downward to form a second bent end perpendicular to the first bent end. The upper die continues to descend, driving the insert knife to drive the side forming mechanism to bend the second bent end of the product inward to form a third bent end parallel to the corresponding first bent end, thus completing the forming bend of the product. The upper die then ascends, all functional units reset, and await the next bending operation.

[0023] Specifically, six nitrogen springs 17 are provided between the upper mold base 11 and the upper pad 12, eight springs 18 are provided between the upper pad 12 and the stripper plate 14, and four equal-height screws 19 pass through the upper pad 12 and the upper clamping plate 13 in sequence and are connected to the stripper plate 14.

[0024] Specifically, the lower template 21 is provided with four slide blocks 211, and each of the multifunctional forming sliders 26 is obliquely and slidably installed on the corresponding slide block 211.

[0025] Specifically, the lower pad 22 is movably fitted with four ejector pins 221 that correspond one-to-one with the multifunctional molding slider 26. Each ejector pin 221 is provided with an ejector pin spring 222 between it and the lower mold base 23. When the multifunctional molding slider moves down along the slide base, the ejector pin and the ejector pin spring apply pressure and the ejector pin spring is compressed. When the upper mold moves up, the multifunctional molding slider is reset under the action of the ejector pin spring.

[0026] Specifically, the lower pad 22 is also provided with two stops 223 that correspond one-to-one with the drive insert 15, for limiting the drive insert.

[0027] Specifically, such as Figure 1 and Figure 3 As shown, the side forming mechanism 27 includes a driving block 271, two side forming blocks 272, two reset nitrogen springs 273, and two limiting blocks 274. A reset nitrogen spring 273 is provided between the driving block 271 and each limiting block 274. Two mounting portions extend from both ends of the driving block 271 toward the two multi-functional forming sliders 26. Each mounting portion has a mounting surface corresponding to the multi-functional forming slider. A side forming block 272 is provided on the mounting surface of each mounting portion. When the driving insert moves downward, the driving insert drives the driving block, and the driving block drives the two side forming blocks to complete the bending. After bending, the driving insert moves upward, and the driving block is reset under the action of the two reset nitrogen springs.

[0028] Specifically, the lower mold base 23 is provided with four outer guide sleeves 231, and the upper mold base 11 is provided with four outer guide posts 111 corresponding to the outer guide sleeves 231. Through the cooperation of the outer guide posts and the outer guide sleeves, the upper mold and the lower mold can be effectively guided to accurately align during mold closing, ensuring the dimensional accuracy and appearance quality of the product.

[0029] In summary, this utility model, through the above-described structural design, overcomes the shortcomings of the prior art and features a reasonable structure, simple process, and low cost.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A dual-drive four-way forming mold, comprising an upper mold (10) and a lower mold (20), characterized in that: The upper mold (10) includes an upper mold base (11), an upper pad (12), an upper clamping plate (13), and a stripper plate (14) arranged sequentially from top to bottom. The upper mold base (11) is provided with two drive cutters (15), and the upper pad (12) is provided with four bending punches (16). The four bending punches (16) pass through the upper clamping plate (13) and the stripper plate (14) in sequence and extend out of the stripper plate (14). The lower surface of the stripper plate (14) is provided with a groove (141). The lower mold (20) includes a lower template (21), a lower pad (22), a lower mold base (23), and a lower support plate (24) arranged sequentially from top to bottom. A number of lower pads (25) are provided between the lower mold base (23) and the lower support plate (24). Four multi-functional forming sliders (26) are slidably installed on the lower template (21). Each multi-functional forming slider (26) has a protrusion (261) that cooperates with the groove (141) and a punch block (262) that cooperates with the bending punch (16). Four side forming mechanisms (27) are provided on the lower pad (22). Every two side forming mechanisms (27) cooperate with a driving insert (15).

2. The dual-drive four-way forming mold according to claim 1, characterized in that: Several nitrogen springs (17) are provided between the upper mold base (11) and the upper pad (12).

3. The dual-drive four-way forming mold according to claim 2, characterized in that: A plurality of springs (18) are provided between the upper pad (12) and the stripping plate (14).

4. The dual-drive four-way forming mold according to claim 3, characterized in that: Several equal-height screws (19) pass through the upper pad (12) and the upper clamping plate (13) in sequence and are connected to the stripper plate (14).

5. The dual-drive four-way forming mold according to claim 4, characterized in that: The lower template (21) is provided with four slide blocks (211), and each of the multifunctional forming sliders (26) is inclined and slidably installed on the corresponding slide block (211).

6. The dual-drive four-way forming mold according to claim 5, characterized in that: The lower pad (22) is movably fitted with four ejector pins (221) that correspond one-to-one with the multifunctional molding slider (26), and each ejector pin (221) is provided with an ejector pin spring (222) between it and the lower mold base (23).

7. The dual-drive four-way forming mold according to claim 6, characterized in that: The lower pad (22) is also provided with two stops (223) that correspond one-to-one with the drive inserter (15).

8. The dual-drive four-way forming mold according to claim 7, characterized in that: The side forming mechanism (27) includes a driving block (271), two side forming blocks (272), two reset nitrogen springs (273) and two limiting blocks (274). A reset nitrogen spring (273) is provided between the driving block (271) and each limiting block (274). The two ends of the driving block (271) extend towards the two multifunctional forming sliders (26) and have two mounting parts. Each mounting part is provided with a side forming block (272).

9. The dual-drive four-way forming mold according to claim 8, characterized in that: The lower mold base (23) is provided with four outer guide sleeves (231), and the upper mold base (11) is provided with four outer guide posts (111) that correspond one-to-one with the outer guide sleeves (231).

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