A mold capable of preventing scratches during bending

Abstract

The utility model provides a kind of die capable of preventing scratch in bending process, comprising: upper die set and lower die set, upper die set and lower die set are set on forming machine;Several bending publics are arranged on upper die set;And rotatable roller is arranged at one end of several bending publics;Bending position is arranged on lower die set, and is oppositely arranged with several bending publics;Several bending holes are arranged on lower die set, and are oppositely arranged with several bending publics;The die capable of preventing scratch in bending process proposed by the utility model can effectively reduce bending resistance, so as to avoid product scratch in bending process;Meanwhile, rolling friction greatly reduces the wear of bending public.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a mold that can prevent scratches during bending. Background Technology

[0002] With the rapid development of industries such as automotive electronics and precision instruments, the market demand for high-precision and high-reliability metal stamping parts continues to grow. These stamping parts are often made of SUS304 1 / 2H stainless steel, which has excellent corrosion resistance and structural strength. However, the material properties also pose severe challenges to the bending process of stamping dies. In particular, when bending the material through the die, frictional resistance between the material and the die components often occurs, causing material wear.

[0003] In the prior art, polishing is often performed on the surface of the mold component to reduce the roughness of the mold component surface, thereby reducing the wear on the material during bending. However, during the bending process, the surface of the mold component is still in direct contact with the surface of the material, and the surface of the material will still be worn under the action of the mold, affecting the use of the material after forming. Utility Model Content

[0004] The purpose of this utility model is to provide a mold that can prevent scratches during bending, which can solve the above-mentioned technical problems. This utility model provides a mold that can prevent scratches during bending, comprising: The upper and lower modules are mounted on the molding machine. Several bending males are threaded onto the upper module; and a rotatable roller is provided at one end of each of the bending males; The bending position is located on the lower module and is positioned opposite to several bending males; Several bending holes are provided on the lower module and are positioned opposite to several bending males.

[0005] As a further technical solution, a rotating groove is provided on the bending die, and the roller is set in the rotating groove.

[0006] As a further technical solution, it also includes: The first and second limiting plates are threaded onto the bending man and placed on both sides of the bending man.

[0007] As a further technical solution, a first mounting hole and a second mounting hole are respectively provided on both sides of the bending hole, and a first limiting plate and a second limiting plate are respectively inserted into the first mounting hole and the second mounting hole.

[0008] As a further technical solution, both the first mounting hole and the second mounting hole are connected to the rotating groove; in the installed state, one end of both the first limiting plate and the second limiting plate is placed in the rotating groove.

[0009] As a further technical solution, it also includes: Several limiting bodies are set on the lower module and arranged around the bending position.

[0010] As a further technical solution, the upper module includes: The upper mold base is connected to the molding machine; and several guide pillars are provided on the upper mold base; The pad and clamp are both mounted on several guide posts, and several first bolts pass through the clamp and pad in sequence and are connected to the upper module; several bent males are fixed at one end to the clamp. Both the back plate and the release plate are mounted on the guide post; and the release plate and the back plate are fixed together by several second bolts. The clamp is equipped with several hooks, and several hooks are connected to the release plate.

[0011] The technical solution of this utility model transforms the sliding friction between the traditional bending die and the stainless steel material into rolling friction by setting a rotatable roller at one end of the bending die. This effectively reduces bending resistance and fundamentally avoids scratches on the product during the bending process. At the same time, rolling friction significantly reduces the wear of the bending die, eliminating the need for frequent replacement or polishing maintenance, thus significantly reducing maintenance costs, ensuring production continuity, and perfectly meeting the needs of the automotive electronics and other fields for large-scale, high-quality production of precision stamped parts. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a mold that can prevent scratches during bending according to the present invention; Figure 2 for Figure 1 A cross-sectional view along the AA direction; Figure 3 This is a perspective view of the upper module in this utility model; Figure 4 This is a perspective view of the lower module of this utility model; Figure 5 This is an enlarged perspective view of the bending element in this utility model.

[0014] Explanation of reference numerals in the attached figures: 100-Upper module; 101-Upper mold base; 102-Guide post; 103-Pad; 104-Clamping plate; 105-Removable back plate; 106-Removable plate; 107-Hook; 200-Lower module; 300-Bending male; 301-Rotating groove; 302-First mounting hole; 303-Second mounting hole; 400-Roller; 500-Bending hole; 601-First limiting plate; 700-Limiting body. Detailed Implementation

[0015] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, 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 protection scope of this utility model.

[0016] 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 element 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.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" 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; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] like Figure 1-5 As shown, the present invention proposes a mold that can prevent scratches during bending, comprising: An upper mold 100 and a lower mold 200 are mounted on a molding machine. In this invention, the molding machine is existing technology. Driven by the molding machine, the upper mold 100 moves, approaching or moving away from the lower mold 200 during the movement. Several bending mandrels 300 are inserted into the upper mold 100. A rotatable roller 400 is provided at one end of each bending mandrel 300. A bending position is located on the lower mold 200 and is opposite to the bending mandrels 300. Several bending holes 500 are located on the lower mold 200 and are opposite to the bending mandrels 300, with the bending holes 500 located at the bending position. During bending, the product is placed on the bending position, and the upper mold 100 moves to the position of the lower mold 200 under the drive of the molding machine. Because the bending mandrels 300 are located on the upper mold 100, during the movement of the upper mold 100... During the process, the upper module 100 drives several bending males 300 to move to the bending position. When the upper module 100 contacts the lower module 200, the bending males 300 bend the product placed at the bending position. During the bending process, the rollers 400 contact the product and, as the bending males 300 continue to move, insert into several bending holes 500, pressing the part of the product to be bent into the bending holes 500, thus bending the product. After bending is completed, the upper module 100 and the lower module 200 are separated by the forming machine, and the upper module 100 drives the bending males 300 to separate from the product. The bent product is then removed from the lower module 200, completing the bending operation. It should be noted that there are two bending males 300 on the upper module 100 and two corresponding bending holes 500 on the lower module 200.

[0019] The technical solution of this utility model is to set a rotatable roller 400 at one end of the bending die 300, which transforms the sliding friction between the traditional bending die 300 and the stainless steel material into rolling friction. This can effectively reduce bending resistance and fundamentally avoid scratches on the product during the bending process. At the same time, rolling friction greatly reduces the wear of the bending die 300, eliminating the need for frequent replacement or polishing maintenance, significantly reducing maintenance costs, ensuring production continuity, and perfectly meeting the needs of the automotive electronics and other fields for large-scale, high-quality production of precision stamped parts.

[0020] Actual testing showed that when processing 2.0mm thick SUS304 1 / 2H stainless steel parts, the maintenance cycle for bending 300mm parts was extended from 3 days in the existing technology to 15 days, and the single maintenance time was shortened from 2 hours to 0.5 hours. When continuously producing 1000 products, the total production time of this utility model's technical solution was reduced by 18% compared to the existing technology's mold, and the product scratch rate was reduced from 12% to 0% compared to the existing technology's mold, fully meeting the quality requirements of the automotive electronics field for precision stamped parts.

[0021] like Figure 5 As shown, the bending tool 300 has a rotating groove 301, and the roller 400 is disposed in the rotating groove 301. When bending the product, after the roller 400 contacts the product, the roller 400 can rotate within the rotating groove 301, thereby forming rolling friction between the roller 400 and the product, reducing wear between the roller 400 and the product. It should be noted that the rotating groove 301 has an opening, and the distance between the two sides of the opening is less than the diameter of the roller 400. This ensures that the roller 400 can contact the product during bending, while preventing the roller 400 from leaving the rotating groove 301 from the opening position. In addition, the diameter of the rotating groove 301 is larger than the diameter of the roller 400 to ensure that the roller 400 can rotate within the rotating groove 301. Preferably, the diameter of the rotating groove 301 is 0.02 mm larger than the diameter of the roller 400.

[0022] like Figure 5 As shown, this utility model also includes a first limiting plate 601 and a second limiting plate, which are inserted through the bending man 300 and positioned on both sides of the bending man 300. This allows the first limiting plate 601 and the second limiting plate to restrict the position of the roller 400 within the rotating groove 301, preventing the roller 400 from shifting within the rotating groove 301 and preventing the roller 400 from detaching from the rotating groove 301. Specifically, the bending die 300 is provided with a first mounting hole 302 and a second mounting hole 303 on both sides, and the first limiting plate 601 and the second limiting plate are respectively inserted into the first mounting hole 302 and the second mounting hole 303; and the first mounting hole 302 and the second mounting hole 303 are both connected to the rotating groove 301; in the installed state, one end of the first limiting plate 601 and the second limiting plate are both placed in the rotating groove 301; in this way, when the roller 400 is limited by the first limiting plate 601 and the second limiting plate, the first limiting plate 601 and the second limiting plate also prevent the first limiting plate 601 and the second limiting plate from affecting the insertion of the bending die 300 into the bending hole 500.

[0023] like Figure 4 As shown, a plurality of limiting bodies 700 are also provided on the lower module 200, and the plurality of limiting bodies 700 are arranged around the bending position, that is, the space enclosed by the plurality of limiting bodies 700 forms the bending position, and the product is placed on the bending position; during the use stage, the product is placed within the bending position enclosed by the plurality of limiting bodies 700, and the position of the product is restricted by the cooperation of the plurality of limiting bodies 700 to prevent the product from shifting during the bending process; it should be noted that the number of the plurality of limiting bodies 700 is determined according to the actual situation, and this utility model does not further limit it; in this utility model, the limiting body is preferably a bolt, which is fixed on the lower module after being connected to the threaded hole on the lower module by the bolt.

[0024] like Figure 2-3As shown, the upper module 100 includes an upper mold base 101 connected to the molding machine; and a plurality of guide posts 102 are provided on the upper mold base 101; a pad plate 103 and a clamping plate 104 are both passed through the plurality of guide posts 102, and a plurality of first bolts are sequentially passed through the clamping plate 104 and the pad plate 103 and then connected to the upper module 100; a plurality of bending bolts 300 are fixed at one end to the clamping plate 104; a back plate 105 and a back plate 106 are both passed through the guide posts 102; and the back plate 106 is connected to the back plate 106. The back plate 105 is fixed by several second bolts; several hooks 107 are provided on the clamping plate 104, and the hooks 107 are connected to the release plate 106; the hooks 107 restrict the position of the release back plate 105 and release plate 106, preventing the release back plate 105 and release plate 106 from detaching from several guide posts 102; the upper module 100 moves under the drive of the molding machine, and moves the pad 103 and clamping plate 104 by driving them, since several bending rods 300 are set on the clamping plate On 104, it will therefore move simultaneously with the clamping plate 104; after the clamping plate 104 moves a certain distance, it will pull the back plate 105 through several hooks 107, causing the back plate 105 and the ejector plate 106 to separate from the lower mold assembly 200, completing the mold opening operation; when the mold is closed, driven by the molding machine, several guide pins 102 are inserted into the guide holes on the lower mold assembly 200 corresponding to the guide pins, and after the ejector plate 106 contacts the lower mold assembly 200, it will move along with the guide pins 107. As the guide post 102 continues to enter the guide hole, the release plate 106 and the release back plate 105 slide on the guide post 102 and contact the clamping plate 104. During the process of the guide post 102 being inserted into the guide hole, the bending males 300 will move under the action of the clamping plate 104. As the clamping plate 104 moves, the bending males 300 pass through the release back plate 105 and the release plate 106 and contact the product placed in the bending position, and perform a bending operation on the product.

[0025] It should be noted that the number of guide posts 102 depends on the actual situation. In this utility model, it is preferred to provide four guide posts 102; the number of hooks 107 is preferably four, with two hooks 107 provided on each side of the clamping plate 104; as Figure 5 As shown, a boss is provided on the bending male 300, and a groove is provided on the clamping plate 104, such as... Figure 2 As shown, after the bending male 300 is installed on the clamping plate 104, the boss is placed in the groove. This can increase the fixing strength between the bending male 300 and the clamping plate 104 and prevent the bending male 300 from detaching from the clamping plate 104.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mold capable of preventing scratches during bending, characterized in that, include: An upper module (100) and a lower module (200) are provided on a molding machine; A plurality of bending males (300) are threaded through the upper module (100); and a rotatable roller (400) is provided at one end of the plurality of bending males (300). The bending position is provided on the lower module (200) and is disposed opposite to a plurality of the bending males (300); A number of bending holes (500) are provided on the lower module (200) and are arranged opposite to a number of bending holes (300).

2. The mold according to claim 1, capable of preventing scratches during bending, is characterized in that, The bending tool (300) has a rotating groove (301), and the roller (400) is disposed in the rotating groove (301).

3. The mold according to claim 2, capable of preventing scratches during bending, is characterized in that, Also includes: The first limiting plate (601) and the second limiting plate are inserted through the bending male (300) and placed on both sides of the bending male (300).

4. The mold according to claim 3, capable of preventing scratches during bending, is characterized in that, The bending man (300) is provided with a first mounting hole (302) and a second mounting hole (303) on both sides respectively. The first limiting plate (601) and the second limiting plate are respectively inserted into the first mounting hole (302) and the second mounting hole (303).

5. The mold according to claim 4, capable of preventing scratches during bending, is characterized in that, Both the first mounting hole (302) and the second mounting hole (303) are connected to the rotating groove (301); in the installed state, one end of the first limiting plate (601) and the second limiting plate are placed in the rotating groove (301).

6. The mold according to claim 1, capable of preventing scratches during bending, is characterized in that, Also includes: Several limiting bodies (700) are disposed on the lower module (200) and arranged around the bending position.

7. The mold according to claim 1, capable of preventing scratches during bending, is characterized in that, The upper module (100) includes: The upper mold base (101) is connected to the molding machine; and several guide pillars (102) are provided on the upper mold base (101). The pad (103) and the clamp (104) are both mounted on a number of guide posts (102), and a number of first bolts pass through the clamp (104) and the pad (103) in sequence and are connected to the upper module (100); one end of a number of bending nuts (300) is fixed on the clamp (104); The back plate (105) and the detachment plate (106) are both mounted on the guide post (102); and the detachment plate (106) is fixed to the back plate (105) by a number of second bolts. The clamping plate (104) is provided with a plurality of hooks (107), and the plurality of hooks (107) are connected to the release plate (106).

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