Hinge hinge automatic die

Abstract

The utility model discloses an automatic hinge die which comprises an upper die plate and a lower die plate which are combined to form a continuous station. The continuous stations sequentially comprise a pre-punching station, an edge cutting station, a pre-bending station, a bending station, a fine punching station, a chamfer punching station, a primary shaping station, a secondary punching station and a secondary shaping station in the advancing direction of the material belt, the fine punching station is used for forming a shaft hole, the secondary punching station is used for forming a connecting hole, and the secondary shaping station is used for forming a connecting hole. The primary shaping station and the secondary shaping station are both used for shaping the two ends of the hinge. According to the automatic die for the hinge, the fine punching station, the secondary punching station and the secondary shaping station are arranged to machine a material belt step by step, the flatness, the coaxiality and the forming precision of the hinge are effectively improved, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic mould technical field, more specifically, relate to a hinge hinge automatic mould. BACKGROUND

[0002] The hinge as the connecting key piece of the door, the body and the like directly influences the smoothness and the service life of the door opening and closing. Figure 2 The hinge whole structure as shown in the figure is in the shape of U, and coaxial shaft holes are arranged on both sides of the hinge, which can be connected with the rotating shaft of the hinge. Through this design, the rotating property and the stability of installation of the hinge are strengthened. In the installation process of the door or the body, the connecting holes at both ends of the hinge are used to fix the fasteners, so as to ensure the overall firmness of the hinge.

[0003] Since the rotation of the hinge needs high-precision parallelism support, slight errors can cause unsmooth rotation and even generate friction noise. Therefore, in the manufacturing process, ensuring the coaxiality and parallelism of the hinge hole becomes one of the technical difficulties. The conventional automatic mould processing steps include punching, edge cutting and bending, but in actual operation, the bending step often affects the shape of the pre-punched hole, so that the final parallelism is difficult to meet the standard. This deformation problem causes resistance when the hinge rotates, reducing the user experience. SUMMARY

[0004] The utility model aims at solving one of the technical problems in the related art to some extent. Therefore, the utility model provides a hinge hinge automatic mould, which gradually processes the material belt through the setting of the fine punching station, the secondary punching station and the two shaping stations, effectively improves the flatness, coaxiality and forming precision of the hinge hinge, and prolongs the service life.

[0005] The technical scheme adopted by the utility model is as follows: a hinge hinge automatic mould is provided, which comprises an upper die plate and a lower die plate, the upper die plate and the lower die plate are combined to form a continuous station, the continuous station comprises a pre-punching station, an edge cutting station, a pre-bending station, a bending station, a fine punching station, a chamfering station, a primary shaping station, a secondary punching station and a secondary shaping station in sequence along the material belt running direction, the fine punching station is used for forming the shaft hole, the secondary punching station is used for forming the connecting hole, and the primary shaping station and the secondary shaping station are both used for shaping the two ends of the hinge hinge.

[0006] With the above structure, the fine punching station is used for forming the shaft hole to ensure the hole diameter and coaxiality requirements; the secondary punching station is used for forming the connecting hole to ensure the accurate fit of the connecting structure. In addition, the first shaping station and the second shaping station are used for shaping the two ends of the hinge hinge respectively, wherein the first shaping station effectively improves the flatness of the two ends and the coaxiality of the connecting hole, and the second shaping station further ensures the overall flatness of the hinge hinge product in the final forming stage. Thus, the rotation smoothness of the hinge hinge is improved, the rotation friction noise is reduced, and the service life and stability are further prolonged.

[0007] According to an embodiment of the utility model, automatic mould still includes side hole forming assembly, side hole forming assembly includes pressing block, sliding block, connecting block and movable block, pressing block fixed mounting in upper die plate, sliding block can slideable installation in lower die plate, connecting block fixed installation in sliding block inboard, movable block floating installation in connecting block inboard, connecting block fixed installation has fine hole punch, fine hole punch be located in fine punching station, and fine hole punch passes through and extends movable block, wherein pressing block and sliding block form inclined wedge structure, utilize automatic mould's mould force, make pressing block jolt sliding block side move, movable block is used for pre -clamping fixed material band, fine hole punch is used for to material band on the hole that passes through pre -punching processing expands hole processing, guarantees the quality of forming hole.

[0008] According to an embodiment of the utility model, connecting block fixed installation has chamfer punch, chamfer punch be located in the chamfering station, and chamfer punch passes through and extends movable block, chamfer punch is used for to material band on the hole that passes through fine hole punch processing chamfer processing.

[0009] According to an embodiment of the utility model, first elastic piece is equipped between connecting block and movable block, and first elastic piece has the elastic tendency of movable block away from connecting block.

[0010] According to an embodiment of the utility model, the inboard of movable block is fixedly installed with an abutting block; the abutting block is used for abutting and fixing the material band to prevent it from moving during fine hole punching.

[0011] According to an embodiment of the utility model, a second elastic piece is provided between the sliding block and the lower die plate, and the second elastic piece has an elastic tendency of the sliding block away from the material band.

[0012] According to an embodiment of the utility model, the lower die plate is fixedly installed with a limiting block, and when the mold is opened, the second elastic piece jolts the sliding block and the limiting block to tightly abut, for controlling the movement range of the sliding block when the mold is opened. The second elastic piece jolts the sliding block when the mold is opened, so that the sliding block and the limiting block are in close contact, thereby effectively limiting the position of the sliding block and ensuring that the sliding block will not be displaced due to the separation of the mold.

[0013] According to one embodiment of the present application, the connecting block is fixedly installed with a pull hook on both sides, and the movable block is provided with a side groove in sliding cooperation with the pull hook on both sides; under the action of the first elastic member, there is a gap between the connecting block and the movable block, the pull hook is located at one end of the side groove stroke, when the pressing block abuts against the sliding block to drive the connecting block to move, the first elastic member is continuously compressed, and the connecting block drives the precision hole punch and the chamfer punch to move synchronously.

[0014] According to one embodiment of the present application, the movable block is provided with a first through hole, and the precision hole punch is in slidable cooperation with the first through hole.

[0015] According to one embodiment of the present application, the movable block is provided with a second through hole, and the chamfer punch is in slidable cooperation with the second through hole. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0017] Figure 1 It is a perspective view of the material belt in the embodiment of the present application.

[0018] Figure 2 It is a perspective view of the hinge hinge in the embodiment of the present application.

[0019] Figure 3 It is a perspective view of the upper die plate in the embodiment of the present application.

[0020] Figure 4 It is a top view of the lower die plate in the embodiment of the present application.

[0021] Figure 5 It is a perspective view of the side hole forming assembly in the embodiment of the present application.

[0022] Figure 6 It is a perspective view of the side hole forming assembly when the mold is opened in the embodiment of the present application.

[0023] Figure 7 It is a structural schematic view of the side hole forming assembly in the embodiment of the present application.

[0024] Figure 8 It is a structural schematic view of the sliding block in the embodiment of the present application.

[0025] Figure 9 It is a perspective view of the sliding block when the mold is opened in the embodiment of the present application.

[0026] Figure 10 It is the bottom view of the sliding block in the embodiment of the utility model.

[0027] Figure 11 It is the explosion view of the side hole forming assembly in the embodiment of the utility model.

[0028] Figure 12 It is the perspective view of the movable block in the embodiment of the utility model.

[0029] Explanation of reference numerals in the drawing:

[0030] 10, material belt; 20, hinge hinge; 30, upper die plate; 40, lower die plate; 50, side hole forming assembly;

[0031] 11, pre-punching station; 12, edge cutting station; 13, pre-bending station; 14, bending station; 15, fine punching station; 16, chamfering station; 17, primary shaping station; 18, secondary punching station; 19, secondary shaping station;

[0032] 21, shaft hole; 22, connecting hole; 23, chamfer;

[0033] 51, pressing block; 52, limiting block; 53, sliding block; 54, connecting block; 55, movable block; 56, fine hole punch; 57, chamfer punch; 58, abutting block; 59, first elastic member; 510, second elastic member;

[0034] 54a, drag hook;

[0035] 55a, first through hole; 55b, second through hole; 55c, side groove. DETAILED DESCRIPTION

[0036] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as a limitation of the utility model. Embodiment one

[0037] As Figures 1-12As shown, in the embodiment disclosed in the present application, an automatic die for hinge hinge 20 is provided, which comprises an upper die plate 30 and a lower die plate 40, the upper die plate 30 and the lower die plate 40 are combined to form a continuous station, the continuous station comprises a pre-punching station 11, a trimming station 12, a pre-bending station 13, a bending station 14, a fine punching station 15, a chamfering station 16, a first shaping station 17, a second punching station 18 and a second shaping station 19 in sequence along the direction of the material strip 10, the fine punching station 15 is used for forming the shaft hole 21, the second punching station 18 is used for forming the connecting hole 22, and the first shaping station 17 and the second shaping station 19 are used for shaping the two ends of the hinge hinge 20.

[0038] Further, in combination with Figure 1 As shown, the material strip 10 in the figure corresponds to the pre-punching station 11, the trimming station 12, the pre-bending station 13, the bending station 14, the fine punching station 15, the chamfering station 16, the first shaping station 17, the second punching station 18 and the second shaping station 19 in sequence along the direction of the material strip 10. And after the second shaping station 19, there is also a cutting station, which produces the finished hinge hinge 20. In combination with Figure 2 As shown, the overall structure of the finished hinge hinge 20 is in the shape of a few characters, and coaxial shaft holes 21 are provided on both sides of the hinge, and the outer opening of the shaft hole 21 is chamfered 23 to facilitate the insertion of the shaft into the shaft hole 21. In the installation process of the door or the vehicle body, the connecting holes 22 at both ends of the hinge hinge 20 are used to fix the fasteners. Among them, the shaft hole 21 and the hinge hinge 20 are horizontally arranged, and the connecting hole 22 is vertically arranged.

[0039] In terms of manufacturing process, the pre-punching station 11 is used to punch a hole at the predetermined shaft hole 21 position of the material strip 10, so that the hole diameter is slightly smaller than the design size of the shaft hole 21, thereby providing positioning for subsequent processing. The trimming station 12 cuts out the external contour of the hinge hinge 20, and the pre-bending station 13 realizes preliminary bending of less than 90 degrees at both ends of the finished product to reduce the influence of bending on hole accuracy. The subsequent bending station 14 then completes the accurate forming of both ends in the second processing. Compared with the one-time bending forming in the prior art, the embodiment effectively avoids hole deformation and precision loss by means of two-time bending, thereby significantly improving the quality and service life of the hinge hinge 20. Then on the fine punching station 15, the shaft hole 21 is processed to the design size, and the chamfering station 16 is used to form the chamfer 23.

[0040] Further, in the present embodiment, the design of the first shaping station 17 applies plastic deformation to both ends of the hinge 20 during the clamping process to optimize the flatness and structural stability of both ends. The shaping function of this station provides a more accurate processing basis for the subsequent second punching station 18, enabling the punching process of the connecting hole 22 to be carried out under ideal flatness and coaxiality, ensuring the dimensional accuracy and positional accuracy of the connecting hole 22. This design makes the installation process of the finished product more convenient, and significantly improves the stability and service life of the hinge 20 in actual application. The second shaping station 19 is used for precise shaping of both ends of the hinge 20 to ensure the flatness and dimensional accuracy of the final product, improving its installation stability and rotation smoothness. Through further processing by the second shaping station 19, minor deformations that may occur during previous processing can be effectively eliminated, allowing the finished product to meet higher accuracy requirements in critical positions. In addition, the design of this station helps to ensure the coaxiality and perpendicularity of the connecting hole 22 and the shaft hole 21, avoiding offset or wear in subsequent use, thereby significantly enhancing the overall strength and service life of the hinge 20.

[0041] Specifically, in combination with Figures 5-11 As shown in the present embodiment, the automatic die further includes a side hole forming assembly 50, which includes a pressing block 51, a sliding block 53, a connecting block 54, and a movable block 55. The pressing block 51 is fixedly installed on the upper die plate 30. The sliding block 53 is slidably installed on the lower die plate 40. The connecting block 54 is fixedly installed on the inner side of the sliding block 53. The movable block 55 is floatingly installed on the inner side of the connecting block 54. The connecting block 54 is fixedly installed with a fine hole punch 56, which is located at the fine punching station 15, and the fine hole punch 56 penetrates and extends out of the movable block 55. The connecting block 54 is fixedly installed with a chamfering punch 57, which is located at the chamfering station 16, and the chamfering punch 57 penetrates and extends out of the movable block 55. A first elastic member 59 is provided between the connecting block 54 and the movable block 55, and the first elastic member 59 has an elastic tendency to move the movable block 55 away from the connecting block 54. The inner side of the movable block 55 is fixedly installed with an abutting block 58. A second elastic member 510 is provided between the sliding block 53 and the lower die plate 40, and the second elastic member 510 has an elastic tendency to move the sliding block 53 away from the material strip 10. The movable block 55 is provided with a first through hole 55a, and the fine hole punch 56 slidably cooperates with the first through hole 55a. The movable block 55 is provided with a second through hole 55b, and the chamfering punch 57 slidably cooperates with the second through hole 55b.

[0042] Further, in the embodiment, the lower die plate 40 is fixedly provided with a guide rail, and the sliding block 53 is slidingly arranged on the guide rail. The outer side of the sliding block 53 is provided with a first inclined surface, and the bottom end of the pressing block 51 is correspondingly provided with a second inclined surface. The first inclined surface is matched with the second inclined surface, and when the upper die plate 30 and the lower die plate 40 are closed, the pressing block 51 pushes the sliding block 53 to move towards the inner side. The sliding block 53 drives the connecting block 54 and the movable block 55 to move synchronously, and then the abutting block 58 on the movable block 55 abuts against the material belt 10. The sliding block 53 drives the connecting block 54 to continue to move, and the connecting block 54 gradually approaches the movable block 55. The first elastic element 59 is a nitrogen spring, and the first elastic element 59 is continuously compressed, so that the fine hole punch 56 and the chamfer punch 57 apply pressure to one side of the material belt 10, so that the fine hole and the chamfer are formed on the material belt 10.

[0043] Specifically, in combination with Figures 11-12 As shown in the drawings, in the embodiment, the lower die plate 40 is fixedly provided with a limit block 52, and when the mold is opened, the second elastic element 510 pushes the sliding block 53 to tightly abut against the limit block 52, so as to control the movement range of the sliding block 53 when the mold is opened. The two sides of the connecting block 54 are fixedly provided with a draw hook 54a, and the two sides of the movable block 55 are provided with a side groove 55c which slidingly cooperates with the draw hook 54a.

[0044] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0045] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0046] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and those skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.

Claims

1. A hinge knuckle automatic die comprising an upper die plate (30) and a lower die plate (40), characterized by: The upper die plate (30) and the lower die plate (40) combine to form a continuous station, which includes a pre-punching station (11), an edge cutting station (12), a pre-bending station (13), a bending station (14), a fine punching station (15), a chamfering station (16), a primary shaping station (17), a secondary punching station (18) and a secondary shaping station (19) in sequence along the direction of the material belt (10), the fine punching station (15) is used for forming an axle hole (21), the secondary punching station (18) is used for forming a connecting hole (22), and the primary shaping station (17) and the secondary shaping station (19) are used for shaping both ends of the hinge hinge (20).

2. A hinge and knuckle automatic die as claimed in claim 1, wherein: Further comprising a side hole forming assembly (50), the side hole forming assembly (50) comprises a pressing block (51), a sliding block (53), a connecting block (54) and a movable block (55), the pressing block (51) is fixedly installed on the upper die plate (30), the sliding block (53) is slidably installed on the lower die plate (40), the connecting block (54) is fixedly installed on the inner side of the sliding block (53), the movable block (55) is floatingly installed on the inner side of the connecting block (54), the connecting block (54) is fixedly installed with a fine hole punch (56), the fine hole punch (56) is located in the fine punching station (15), and the fine hole punch (56) penetrates and extends out of the movable block (55).

3. A hinge and knuckle automatic die as defined in claim 2 wherein: The connecting block (54) is fixedly installed with a chamfering punch (57), the chamfering punch (57) is located in the chamfering station (16), and the chamfering punch (57) penetrates and extends out of the movable block (55).

4. A hinge and knuckle automatic die as defined in claim 3 wherein: A first elastic member (59) is arranged between the connecting block (54) and the movable block (55), and the first elastic member (59) has an elastic tendency of moving the movable block (55) away from the connecting block (54).

5. The automatic die for hinge knuckles as set forth in claim 2, wherein: The inner side of the movable block (55) is fixedly installed with an abutting block (58).

6. The automatic hinge die of claim 2 wherein: A second elastic member (510) is arranged between the sliding block (53) and the lower die plate (40), and the second elastic member (510) has an elastic tendency of moving the sliding block (53) away from the material belt (10).

7. A hinge and knuckle automatic die as defined in claim 6 wherein: The lower die plate (40) is fixedly installed with a limiting block (52), and when the mold is opened, the second elastic member (510) drives the sliding block (53) to tightly abut against the limiting block (52).

8. The automatic hinge die as defined in claim 2 wherein: The connecting block (54) is fixedly installed with a pull hook (54a) on both sides, and the movable block (55) is provided with a side groove (55c) in sliding cooperation with the pull hook (54a).

9. The automatic hinge die as defined in claim 3 wherein: The movable block (55) is provided with a first through hole (55a), and the fine hole punch (56) is slidably matched with the first through hole (55a).

10. The automatic hinge die as set forth in claim 4, wherein: The movable block (55) is provided with a second through hole (55b), and the chamfering punch (57) is slidably matched with the second through hole (55b).

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