Bending and ribbing stamping die

Abstract

The utility model belongs to the technical field of stamping dies, and particularly relates to a bending and ribbing stamping die. Comprising an upper die and a lower die, the upper die plate is connected with the upper die base and arranged on the side, opposite to the lower die, of the upper die base, and a ribbing punching groove is formed in the side, opposite to the lower die, of the upper die plate; the bending punch is connected with the upper die holder; the upper mold plate is arranged on at least one side of the upper mold plate; the lower die comprises a lower die base; the lower die plate is connected with the lower die base and arranged on the side, opposite to the upper die, of the lower die base, and a ribbing punch matched with the ribbing punching groove is arranged on the side, opposite to the upper die, of the lower die plate; and the bending fixing seat is connected with the lower die holder and is arranged on one side of the lower die plate corresponding to the bending punch. According to the bending and ribbing stamping die, bending and ribbing work can be completed, the manufacturing cost of the die is reduced, and the side edge punch is arranged, so that the side edge can be further bent.

Description

Technical Field

[0001] This utility model belongs to the field of stamping die technology, and particularly relates to bending and rib stamping dies. Background Technology

[0002] Stamping dies are molds used in stamping processes and are widely used in industries such as automotive, home appliances, and electronics. However, traditional bending and rib-forming stamping dies have significant drawbacks in terms of structural design and forming efficiency. Specifically, traditional processes require bending and rib-forming operations to be completed in steps. For example, the main structure of the workpiece is first formed using a bending die, and then a rib-forming die is used to complete the local reinforcing ribs. During this process, the semi-finished product needs to be transferred and positioned multiple times, which not only increases equipment debugging time but also leads to cumulative errors due to repeated clamping, affecting product accuracy. In addition, the step-by-step operation requires multiple sets of dies, significantly increasing manufacturing costs. Utility Model Content

[0003] The purpose of this utility model is to provide a stamping die for bending and pressing ribs in one step, which is especially suitable for specimens with Z-shaped edges and side grooves.

[0004] To achieve the above objectives, this utility model provides a bending and rib-pressing die, including an upper die and a lower die, wherein the upper die includes:

[0005] Upper mold base, used to connect the various components of the upper mold;

[0006] The upper template is connected to the upper mold base and is located on the side of the upper mold base opposite to the lower mold. The side of the upper template opposite to the lower mold is provided with a pressure rib groove.

[0007] A bending punch is connected to the upper die holder and is located on at least one side of the upper die plate.

[0008] The lower mold includes:

[0009] The lower mold base is used to connect the various components of the lower mold.

[0010] The lower template is connected to the lower mold base and is located on the side of the lower mold base opposite to the upper mold. The side of the lower template opposite to the upper mold is provided with a rib punch that cooperates with the rib punching groove.

[0011] A bending fixing seat is connected to the lower die seat and is located on one side of the lower die plate corresponding to the bending punch.

[0012] Optionally, the bending punch is connected to the upper die holder via a nitrogen spring.

[0013] Optionally, the upper template is also connected to at least one set of side punches for re-bending the sides of the specimen.

[0014] Optionally, the lower die base is provided with a first limiting post for positioning the specimen. The first limiting post is located on the outside of the bending punch or the side punch, and the bending punch or the side punch is provided with a sliding groove that matches the first limiting post.

[0015] Optionally, the bending punch includes a plurality of first inserts, which are used to groove or press ribs into the bent portion.

[0016] Optionally, the bending fixing seat includes a plurality of second inserts, the second inserts having grooves for accommodating side punching grooves.

[0017] Optionally, the upper die base is connected to a movable side punch mechanism for side bending of specimens of different lengths. The movable side punch mechanism includes:

[0018] The movable side punch is slidably connected to the upper die base, and the movable side punch has a wedge-shaped surface on one side relative to the upper die base;

[0019] The wedge-shaped insert is slidably disposed between the movable side punch and the upper die base. During the movement of the movable side punch, the movable side punch moves away from or closer to the upper die base.

[0020] Optionally, a second limiting post is detachably connected to the lower die base, and a matching slide groove is provided for the movable side punch.

[0021] Optionally, the upper mold base is provided with a positioning post, and a spring is connected to the positioning post. The lower mold plate is provided with a positioning sleeve that cooperates with the positioning post, and a limiting ring is provided inside the positioning sleeve to limit the movement of the spring.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] (1) The bending and rib-pressing stamping die of this utility model can complete the bending and rib-pressing work, reducing the manufacturing cost of the die, and is equipped with a side punch, which can further bend the side.

[0024] (2) The bending punch of the bending and pressing die of this utility model is composed of multiple inserts. By changing the shape of the inserts, it is suitable for specimens with different forming requirements. The bending fixing seat also includes several inserts, and the inserts are provided with grooves, which are suitable for specimens with pre-formed grooves on the side, so that the grooves of the specimens will not be flattened during bending.

[0025] (3) The bending and pressing die of this utility model is also equipped with a movable side punch mechanism, which can bend test pieces of different lengths. That is, one set of die can complete test pieces of two lengths, further reducing the investment in die manufacturing. Attached Figure Description

[0026] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0027] Figure 1 This is a perspective view of the bending and rib-pressing stamping die of this utility model.

[0028] Figure 2 This is a cross-sectional view of the bending and rib-pressing stamping die of this utility model;

[0029] Figure 3 This is a schematic diagram of the upper mold in Embodiment 1 of this utility model;

[0030] Figure 4 This is a schematic diagram of the lower mold structure in Embodiment 1 of this utility model;

[0031] Figure 5 This is a schematic diagram of the upper mold in Embodiment 2 of this utility model;

[0032] Figure 6 This is a schematic diagram of the lower mold structure in Embodiment 2 of this utility model;

[0033] Figure 7 This is a cross-sectional view of the mold closing process in Embodiment 2 of this utility model;

[0034] Figure 8 (a1) A schematic diagram of the structure of the specimen before processing in Embodiment 1 of this utility model;

[0035] Figure 8 (a2) A schematic diagram of the structure of the specimen after processing in Embodiment 1 of this utility model;

[0036] Figure 8 (b1) A schematic diagram of the structure of the specimen before processing in Embodiment 2 of this utility model;

[0037] Figure 8 (b2) Schematic diagram of the structure of the specimen after processing in Embodiment 2 of this utility model.

[0038] In the picture:

[0039] 100-Upper die; 110-Upper die base; 120-Upper template; 121-Pressure rib punch; 130-Bending punch; 131-First insert; 140-Side punch; 150-Push rod side punch mechanism; 151-Modible side punch; 152-Wedge-shaped insert; 153-Connecting block; 154-Push rod; 160-Positioning pin;

[0040] 200-Lower die; 210-Lower die base; 220-Lower template; 221-Pressure rib punch; 230-Bending fixing seat; 231-Second insert; 240-First limiting post; 250-Second limiting post; 260-Positioning sleeve;

[0041] 300-test specimen. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 are not intended to 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.

[0044] Example 1

[0045] The specimen 300 provided in this embodiment is as follows: Figure 8 (a1, a2), Figure 8 (a1) is the test piece before processing. Figure 8 (a2) is the processed specimen. This embodiment provides bending and rib-pressing dies, such as... Figure 1-4 The system includes an upper mold 100 and a lower mold 200. The upper mold 100 includes an upper mold base 110 and an upper template 120. The upper mold base 110 is used to connect the various components of the upper mold 100. The upper template 120 is connected to the upper mold base 110 and is located on the side of the upper mold base 110 opposite to the lower mold 200. In practical applications, several nitrogen springs are connected between the upper mold base 110 and the upper template 120 to ensure pressure balance. The side of the upper template 120 opposite to the lower mold 200 is provided with a rib punch groove 121. The lower mold 200 includes a lower mold base 210 and a lower template 220. The lower mold base 210 is used to connect the various components of the lower mold 200. The lower template 220 is connected to the lower mold base 210 and is located on the side of the lower mold base 210 opposite to the upper mold 100. The side of the lower template 220 opposite to the upper mold 100 is provided with a rib punch 221 that cooperates with the rib punch groove 121.

[0046] The upper mold base 110 is provided with a positioning post 160, and a spring is connected to the positioning post 160. The lower mold plate 220 is provided with a positioning sleeve 260 that cooperates with the positioning post 160. The positioning sleeve 260 has a limiting ring inside to limit the spring. When the mold is closed, the positioning post 160 is inserted into the positioning sleeve 260 to ensure the accuracy of mold closing. The spring is compressed under the action of the limiting ring to buffer the impact force and ensure the stability of mold closing.

[0047] like Figure 3-4 As shown, a bending punch 130 is connected to the upper die holder 110. The bending punch 130 is located on at least one side of the upper die template 120. In this example, the bending punch 130 is located on both sides of the upper die holder 110, and the bending punch 130 is connected to the upper die holder 110 via a nitrogen spring. A bending fixing seat 230 is connected to the lower die holder 210. The bending fixing seat 230 is located on one side of the lower die template 220 corresponding to the bending punch 130.

[0048] For specimens requiring further bending of the sides, at least one set of side punches 140 are connected to the upper template 110 for further bending of the sides of the specimen. The side punches 140 are located outside the bending punches 130. In this embodiment, there are four sets of side punches 140, which are used to bend the four sides of the specimen. The lower die base 210 is provided with a first limiting post 240 for positioning the specimen.

[0049] For specimens that do not require side bending after being punched and bent by the bending punch 130, the first limiting post 240 is located on the outside of the bending punch 130, and the pressing punch 221 is provided with a sliding groove that matches the first limiting post 240.

[0050] For specimens that require further bending of the sides, the first limiting post 240 is located on the outside of the side punch 140, and the side punch 140 is provided with a sliding groove that matches the first limiting post 240.

[0051] The bending punch 130 includes a plurality of first inserts 132, the first inserts 131 being used to punch grooves or press ribs on the bending portion, and the bending fixing seat 230 includes a plurality of second inserts 231, the second inserts 231 being provided with grooves for accommodating side punching grooves.

[0052] The workflow of the bending and ribbing stamping die in this embodiment is as follows: The upper die 100 is mounted on the punch, and the lower die 200 is placed on the worktable of the punch press. After adjusting the position, the specimen 300 is placed between the first limiting posts 240 of the lower die 120, so that the side of the specimen 300 contacts the first limiting post 240. The punch is started, and the upper die 100 performs a ribbing process on the specimen 300 located on the lower die 200 under the action of the punch. Then, under the action of the nitrogen spring, the bending punch 130 is started to move downwards to complete the Z-shaped bending operation. For specimens that require further bending of the side, the side punch 140 and the ribbing punch 221 simultaneously complete the bending of the side plate. Because the metal material has a certain degree of ductility, the initial bending of the side does not affect the bending operation of the bending punch. Of course, the side punch 140 can also be connected to the bending punch 130 so that the side punch 140 and the bending punch 130 can simultaneously complete the side bending and Z-shaped bending.

[0053] Example 2

[0054] The difference between this example and Example 1 is that the length of the molded specimen is smaller than that in Example 1. Figure 5-7 As shown in this embodiment, Figure 5 and 7 A movable side punch mechanism 150 is connected to the upper die base 110 for side bending of shorter specimens. Specifically, the movable side punch mechanism 150 includes a movable side punch 151 and a wedge-shaped insert 152. The movable side punch 151 is slidably connected to the upper die base 110, and a wedge-shaped surface is provided on one side of the movable side punch 151 relative to the upper die base 110. The wedge-shaped insert 152 is slidably disposed between the movable side punch 151 and the upper die base 110, and cooperates with the wedge-shaped surface of the movable side punch 151. During the movement of the wedge-shaped insert 152, the movable side punch 151 moves away from or closer to the upper die base 110. In this embodiment, the wedge-shaped insert 152 is connected to the push rod 154 through a connecting block 153.

[0055] When bending the side of a shorter specimen, remove the insert corresponding to the bending punch 130, push the push rod 154, and move the wedge-shaped insert 152 so that the wedge-shaped surface of the wedge-shaped insert 152 contacts the wedge-shaped surface of the movable side punch 151. This pushes the movable side punch 151 away from the upper die base 110, causing it to extend beyond the upper die plate 120. The extended portion must be larger than the bent portion of the specimen's side. At this time, remove the insert corresponding to the bending fixing seat 230 on the lower die plate 220 and install the second limiting post 250. Figure 6 As shown. During mold closing, the second limiting post 250 engages with the groove of the movable side punch 151.

[0056] When processing long specimens, the push rod 154 is pulled out, causing the wedge-shaped insert 152 to disengage from the movable side punch 151. The movable side punch 151 is then retracted into the groove of the upper template 120, and the corresponding insert is installed to keep the bending punch 130 intact. At the same time, the second limiting post 250 on the lower template 220 is removed, and the corresponding insert is installed to keep the bending fixing seat 230 intact.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending and rib-pressing die, comprising an upper die (100) and a lower die (200), characterized in that, The upper mold (100) includes: Upper mold base (110) is used to connect the various components of the upper mold (100); The upper template (120) is connected to the upper mold base (110) and is located on the side of the upper mold base (110) relative to the lower mold (200). The upper template (120) is provided with a pressing groove (121) on the side of the upper template (120) relative to the lower mold (200). A bending punch (130) is connected to the upper die holder (110); it is located on at least one side of the upper die plate (120); The lower mold (200) includes: The lower mold base (210) is used to connect the various components of the lower mold (200); The lower template (220) is connected to the lower mold base (210) and is located on the side of the lower mold base (210) relative to the upper mold (100). The side of the lower template (220) relative to the upper mold (100) is provided with a rib punch (221) that cooperates with the rib punch groove (121). The bending fixing seat (230) is connected to the lower die seat (210) and is located on one side of the lower template (220) corresponding to the bending punch (130).

2. The bending and rib-pressing stamping die according to claim 1, characterized in that, The bending punch (130) is connected to the upper die base (110) via a nitrogen spring.

3. The bending and rib-pressing stamping die according to claim 1, characterized in that, The upper template (120) is also connected to at least one set of side punches (140) for re-bending the side of the specimen.

4. The bending and rib-pressing stamping die according to claim 1 or 3, characterized in that, The lower die base (210) is provided with a first limiting post (240) for positioning the specimen. The first limiting post (240) is located on the outside of the bending punch (130) or the side punch (140), and the bending punch (130) or the side punch (140) is provided with a sliding groove that matches the first limiting post (240).

5. The bending and rib-pressing stamping die according to claim 1, characterized in that, The bending punch (130) includes a plurality of first inserts (131), which are used to groove or press ribs into the bending portion.

6. The bending and rib-pressing stamping die according to claim 3, characterized in that, The bending fixing seat (230) includes a plurality of second inserts (231), each of which has a groove for accommodating a side punch.

7. The bending and rib-pressing stamping die according to claim 1, characterized in that, The upper die base (110) is connected to a movable side punch mechanism (150) for side bending of specimens of different lengths. The movable side punch mechanism (150) includes: The movable side punch (151) is slidably connected to the upper die base (110), and the movable side punch (151) has a wedge-shaped surface on one side relative to the upper die base (110); The wedge-shaped insert (152) is slidably disposed between the movable side punch (151) and the upper die base (110), and cooperates with the wedge-shaped surface of the movable side punch (151). During the movement of the wedge-shaped insert (152), the movable side punch (151) moves away from or closer to the upper die base (110).

8. The bending and rib-pressing stamping die according to claim 7, characterized in that, The lower die base (210) is detachably connected to a second limiting post (250), and the movable side punch (151) is provided with a groove that matches the second limiting post (250).

9. The bending and rib-pressing stamping die according to claim 1, characterized in that, The upper mold base (110) is provided with a positioning post (160), and a spring is connected to the positioning post (160). The lower mold plate (220) is provided with a positioning sleeve (260) that cooperates with the positioning post (160). The positioning sleeve (260) is provided with a limiting ring that limits the spring.

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