Forming mechanism of positioning structure on narrow-edge material belt

Abstract

The utility model discloses a forming mechanism of a positioning structure on a narrow edge material belt, an upper die is provided with a material pressing plate, the material pressing plate is connected with a punch and the upper die in a sliding mode, the punch is composed of a positioning part and a punching part, a lower die is provided with a first sliding groove matched with the punch, a jacking piece is arranged in the first sliding groove, and the jacking piece is arranged under the positioning part and matched with the positioning part in outline. The positioning part and the punching part are arranged on the punch, the first sliding groove matched with the punch is formed in the lower die, and the jacking part matched with the punching part is arranged in the first sliding groove, so that a material belt or a product beside the material belt can be pressed after the punch and the jacking part are matched for guiding when the material pressing plate presses a plate, and the punching precision is improved. The deformation of the plate and the product caused by the pulling of the material belt in the punching process is avoided or slowed down; the jacking part is provided with the chamfer, so that the jacking part can be prevented from scratching a material belt or a product or can be slowed down from scratching the material belt or the product; and the air holes are formed in the punching part, so that deformation of the material belt and the product caused by air pressure difference can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping jigs, in particular to a forming mechanism for a positioning structure on a narrow edge material strip. Background Art

[0002] In the stamping production of metal parts with complex structures, a narrow strip of material is generally formed on one or both sides of the metal part in the later stage of forming. At the same time, in order to facilitate the subsequent winding of materials or the use of automatic assembly machines, it is usually necessary to set some equally spaced positioning structures on the strip, such as positioning holes or bending structures. In design and production, some positioning structures need to be punched after the product is formed, but at this time, not only is the strip narrow and easy to be deformed by punching, but in order to accurately position the strip, it is often necessary to set up a complex positioning guide mechanism, the mold structure is complex, and the manufacturing cost is high. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a forming mechanism with a positioning structure on a narrow-edge material strip, which can further press the material strip or the products beside it after guiding by the cooperation of the punch and the lifting part while pressing the sheet material, thereby avoiding or reducing the deformation of the sheet material and products caused by the pulling of the material strip during the cutting process, and avoiding the deformation of the material strip and products caused by air pressure difference.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is as follows:

[0005] A forming mechanism for a positioning structure on a narrow edge material strip, mounted on a stamping die or a die-cutting jig, comprising a matching upper die and a lower die, wherein the upper die is provided with a punch, and the lower die is provided with a forming piece adapted to the punch;

[0006] A pressure plate is arranged on the upper die at the periphery of the lower end of the punch, the pressure plate is slidably connected to the punch and the upper die, a through hole adapted to the punch is arranged on the pressure plate, the punch is transmission-connected to the first driving device and can slide on the upper die and the pressure plate under the drive of the first driving device;

[0007] The punch is a columnar structure extending along the mold closing direction, and its cross section consists of an integrally formed positioning portion and a punching portion;

[0008] The forming part includes a first slide groove that is adapted to the punch and extends along the mold closing direction. A lifting member is slidably installed in the first slide groove. The lifting member is arranged directly below the positioning portion and adapted to its contour. The lifting member is transmission-connected to a second driving device arranged on the lower mold and can slide in the first slide groove under the drive of the second driving device.

[0009] As a further elaboration of the above technical solution:

[0010] In the above technical solution, the punch is provided with an air hole in the middle of the punching portion and extending in the same direction as the punch.

[0011] In the above technical solution, at least one edge of the upper end of the lifting member is provided with a chamfer extending obliquely toward the lower mold.

[0012] In the above technical solution, the first driving device is a pneumatic cylinder or an oil cylinder, and the second driving device is a nitrogen spring.

[0013] In the above technical solution, the lower mold includes a lower mold plate and a support plate. The lower mold plate is arranged at the upper end of the lower mold and has the first slide groove thereon. The support plate is arranged at the lower end of the lower mold plate and has the second slide groove thereon. The second slide groove is arranged directly below the first slide groove and is connected thereto.

[0014] In the above technical solution, a guide portion is further provided on the lower side wall of the lifting member, and the second sliding groove is adapted to the lower portion of the lifting member.

[0015] In the above technical solution, a limit groove is further provided on the support plate at the lower end of the second slide groove, a limit plate is slidably installed in the limit groove, and the limit plate is arranged between the lifting member and the second driving device and is respectively connected to them by transmission.

[0016] In the above technical solution, the upper mold and the support plate are also provided with matching guide members, and the guide members are arranged beside the pressing plate and the lower mold plate.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: by arranging a positioning portion and a punching portion on the punch, and arranging a first slide groove adapted to the punch on the lower die, and arranging a lifting piece adapted to the punching portion in the first slide groove, the upper die pressing plate can press the sheet material while further guiding the sheet material strip or the product beside it through the cooperation of the punch and the lifting piece, thereby avoiding or reducing the deformation of the sheet material and product caused by the pulling of the sheet material strip during the buffer cutting process; by arranging a chamfer on the lifting piece, the lifting piece can avoid or reduce the scratching of the sheet material strip or product by the lifting piece; by arranging an air hole on the punching portion, the circulation of gas inside and outside the mold during the mold closing and opening process is ensured, thereby avoiding the deformation of the sheet material and product caused by the air pressure difference. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of the present embodiment in the mold opening state (the first drive device and the second drive device are not shown)

[0019] Figure 2 Schematic diagram of the structure of the punch in this embodiment;

[0020] Figure 3 Schematic diagram of the structure of the lifting member in this embodiment;

[0021] Figure 4 Schematic diagram of the structure of the pressing plate in this embodiment;

[0022] Figure 5 is a schematic structural diagram of the support plate in this embodiment;

[0023] Figure 6 It is a structural schematic diagram of the support plate in another perspective of this embodiment.

[0024] In the figure: 10, upper die; 11, punch; 12, pressure plate; 20, lower die; 22, lifting member; 23, support plate; 24, lower template; 30, guide member; 1, positioning part; 2, punching part; 3, first slide groove; 4, air hole; 5, chamfer; 6, second slide groove; 7, guide part; 8, limit groove; 9, through hole. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and cannot be understood as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" and "multiple" mean two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features being in direct contact, or it can include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] like Figure 1-4 As shown, a forming mechanism for a positioning structure on a narrow edge material strip is installed on a stamping die or a die-cutting jig, and includes a matching upper die 10 and a lower die 20, wherein the upper die 10 is provided with a punch 11, and the lower die 20 is provided with a forming piece adapted to the punch 11;

[0028] A press plate 12 is provided on the upper die 10 at the periphery of the lower end of the punch 11. The press plate 12 is slidably connected to the punch 11 and the upper die 10. A through hole 9 adapted to the punch 11 is provided on the press plate 12. The punch 11 is transmission-connected to the first driving device and can slide on the upper die 10 and the press plate 12 under the drive of the first driving device.

[0029] The punch 11 is a columnar structure extending along the mold closing direction, and its cross section is composed of an integrally formed positioning portion 1 and a punching portion 2;

[0030] The molded part includes a first slide groove 3 adapted to the punch 11 and extending along the mold closing direction. A lifting member 22 is slidably installed in the first slide groove 3. The lifting member 22 is arranged directly below the positioning portion 1 and adapted to its contour. The lifting member 22 is transmission-connected to the second driving device arranged on the lower mold 20 and can slide in the first slide groove 3 under the drive of the second driving device.

[0031] In this embodiment, the first driving device is a pneumatic cylinder or an oil cylinder, and the second driving device is a nitrogen spring.

[0032] During operation, after the material belt with the product is in place, the second driving device drives the lifting member 22 to move upward and pushes its top end into the gap between the material belt and the side of the product; after completion, the mold is closed, and the pressure plate 12 on the upper mold 10 first contacts the material belt and / or the product and stops moving downward, and the upper mold 10 continues to move downward to press the pressure plate 12 against the lower mold 20; the punch 11 continues to move downward under the drive of the first driving device, and the second driving device drives the lifting member 22 and the punch 11 to slide downward in the first slide groove 3 synchronously, and the punching part 2 on the punch 11 locates the hole groove at the punching position on the material belt; after completion, the mold is opened, and the upper mold 10 drives the punch 11 and the pressure plate 12 to leave the sheet material.

[0033] Further, such as Figure 2-3 As shown, the punch 11 is provided with an air hole 4 extending in the same direction as the punching portion 2 in the middle thereof; and at least one edge of the upper end of the lifting member 22 is provided with a chamfer 5 extending obliquely toward the lower die 20 .

[0034] It can be understood that the air hole 4 can ensure gas circulation during the punching and cutting process to avoid deformation of the material strip caused by changes in air pressure; the setting of the chamfer 5 can prevent the material strip or product from being completely attached to the lifting member 22, thereby avoiding the problem of scratching the material strip or product.

[0035] Further, such as Figure 5-6As shown, the lower mold 20 includes a lower mold plate 24 and a support plate 23. The lower mold plate 24 is arranged at the upper end of the lower mold 20 and is provided with a first slide groove 3. The support plate 23 is arranged at the lower end of the lower mold plate 24 and is provided with a second slide groove 6. The second slide groove 6 is arranged directly below the first slide groove 3 and is connected with it; a guide portion 7 is also provided on the lower side wall of the lifting member 22, and the second slide groove 6 is adapted to the lower part of the lifting member 22; a limiting groove 8 is also provided on the support plate 23 at the lower end of the second slide groove 6, and a limiting plate is slidably installed in the limiting groove 8. The limiting plate is arranged between the lifting member 22 and the second driving device and is respectively connected with them in transmission.

[0036] It can be understood that the second slide groove 6 can ensure that the lifting member 22 slides smoothly on the support plate 23, and the limit groove 8 can limit the upward movement distance of the lifting member 22 by limiting the upward movement distance of the limit plate, thereby avoiding damage to the lifting member or the product.

[0037] Further, such as Figure 1 As shown, the upper mold 10 and the support plate 23 are also provided with matching guide members 30 , and the guide members 30 are arranged beside the pressing plate 12 and the lower mold plate 24 .

[0038] In this embodiment, the guide member 30 is a matching guide post and guide sleeve.

[0039] The utility model provides a positioning portion 1 and a punching portion 2 on the punch 11, and provides a first slide groove 3 matched with the punch 11 on the lower die 20, and provides a lifting piece 22 matched with the punching portion 2 in the first slide groove 3. At the same time, the upper die pressing plate 12 can further press the material strip or the product beside it after the cooperation and correction between the punch 11 and the lifting piece 22, thereby avoiding or reducing the deformation of the material strip and the product caused by the pulling of the material strip during the buffer cutting process; by providing a chamfer 5 on the lifting piece 22, it can avoid or reduce the lifting piece 22 scratching the material strip or the product; by providing an air hole 4 on the punching portion 2, it is ensured that the gas inside and outside the mold can flow during the mold closing and opening process, thereby avoiding the deformation of the material strip and the product caused by the air pressure difference.

[0040] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A forming mechanism for a positioning structure on a narrow edge material strip, mounted on a stamping die or a die-cutting jig, comprising a matching upper die and a lower die, wherein the upper die is provided with a punch, and the lower die is provided with a forming piece adapted to the punch; characterized in that: A pressure plate is arranged on the upper die at the periphery of the lower end of the punch, the pressure plate is slidably connected to the punch and the upper die, a through hole adapted to the punch is arranged on the pressure plate, the punch is transmission-connected to the first driving device and can slide on the upper die and the pressure plate under the drive of the first driving device; The punch is a columnar structure extending along the mold closing direction, and its cross section consists of an integrally formed positioning portion and a punching portion; The forming part includes a first slide groove that is adapted to the punch and extends along the mold closing direction. A lifting member is slidably installed in the first slide groove. The lifting member is arranged directly below the positioning portion and adapted to its contour. The lifting member is transmission-connected to a second driving device arranged on the lower mold and can slide in the first slide groove under the drive of the second driving device.

2. A molding mechanism for a positioning structure on a narrow edge strip according to claim 1, characterized in that: The punch is provided with an air hole in the middle of the punching portion and extending in the same direction as the punch.

3. The molding mechanism of the positioning structure on the narrow edge strip according to claim 1, characterized in that: At least one edge of the upper end of the lifting member is provided with a chamfer extending obliquely toward the lower mold.

4. The molding mechanism of the positioning structure on the narrow edge material strip according to claim 1, characterized in that: The first driving device is a pneumatic cylinder or an oil cylinder, and the second driving device is a nitrogen spring.

5. A forming mechanism for a positioning structure on a narrow edge strip according to any one of claims 1 to 4, characterized in that: The lower mold includes a lower mold plate and a support plate. The lower mold plate is arranged at the upper end of the lower mold and has the first slide groove thereon. The support plate is arranged at the lower end of the lower mold plate and has a second slide groove thereon. The second slide groove is arranged directly below the first slide groove and is connected thereto.

6. A molding mechanism for positioning structure on narrow edge strip according to claim 5, characterized in that: A guide portion is also provided on the lower side wall of the lifting member, and the second sliding groove is adapted to the lower portion of the lifting member.

7. A molding mechanism for positioning structure on narrow edge strip according to claim 5, characterized in that: The support plate is further provided with a limiting groove at the lower end of the second slide groove, and a limiting plate is slidably installed in the limiting groove. The limiting plate is arranged between the lifting member and the second driving device and is respectively connected to the lifting member and the second driving device.

8. The molding mechanism of the positioning structure on the narrow edge material strip according to claim 5, characterized in that: The upper mold and the support plate are also provided with matching guide members, and the guide members are arranged beside the pressing plate and the lower mold plate.

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