A new type of sheet metal composite riveting die

Abstract

The utility model discloses a novel sheet metal composite riveting die, comprising: an upper die assembly, a guide sleeve structure is arranged inside the upper die assembly, and one end of the guide sleeve structure passes through the upper die assembly; an upper die punch is fixed on the upper die assembly, and the punch end of the upper die punch is placed in the guide sleeve structure; a lower die, a contoured groove is opened on the top of the lower die, and a square avoidance through hole is opened in the center. The utility model riveting die has high efficiency, good strength, convenient disassembly, and can be reused, and is suitable for most parts processing that require riveting processing.

Description

Technical Field

[0001] The utility model relates to a pressure riveting die, in particular to a novel sheet metal composite pressure riveting die. Background Art

[0002] Pressure riveting is to pressurize one end of the rivet, penetrate the material and expand to the other end to form a fixation, so that two or more metal parts are tightly combined together;

[0003] Pressure riveting is usually used to fix and connect different materials or thicker materials, such as steel plates, various alloys, etc.

[0004] Compression riveting generally provides a more secure fixation because there is a closer contact between the rivet and the material. The compression riveting process also includes the processing of the rivet nut or stud to ensure that it is perpendicular and flat to the plate to achieve a stable connection and avoid loosening.

[0005] Pressure riveting requires a dedicated riveting machine, usually used in automated manufacturing processes, and the strength of the connection depends on the pressure and material properties;

[0006] Press riveting is usually done with a press riveting machine, which requires space on both sides.

[0007] However, existing closed parts have problems such as being unable to be press-riveted, being crooked during press-riveting, and having problems such as complex parts processing, unstable quality, and low efficiency. Utility Model Content

[0008] The technical problem to be solved by the utility model is to provide a new type of sheet metal composite riveting die, which updates the closed parts (U-shaped with equal dimensions on both sides) that cannot be processed by traditional riveting machines to a new processing method, optimizes the mold part structure, solves the problem that U-shaped closed parts cannot be processed by machine riveting, improves production efficiency, and reduces processing difficulty and production costs.

[0009] The new sheet metal composite riveting die of the utility model is realized by the following technical solutions, including:

[0010] An upper die assembly, wherein a guide sleeve structure is arranged in the upper die assembly, and one end of the guide sleeve structure is arranged through the upper die assembly; an upper die punch is fixed on the upper die assembly, and the punch end of the upper die punch is placed in the guide sleeve structure;

[0011] The lower die has a contoured groove on the top and a square avoidance through hole in the center.

[0012] As a preferred technical solution, the upper die assembly includes an upper die connector, an upper die handle, and an upper die punch;

[0013] A spring hole is provided on the upper die connecting piece, and the upper die guide sleeve is inserted into the spring hole from the bottom of the upper die connecting piece; the guide sleeve structure is arranged in the spring hole and passes through the upper die connecting piece; the upper die punch is installed below the upper die handle, and the punch end of the upper die punch passes through the spring hole and is placed in the guide sleeve structure.

[0014] As a preferred technical solution, the guide sleeve structure includes an upper die guide sleeve and a guide sleeve screw;

[0015] The guide sleeve screw is placed in the spring hole, and the upper die guide sleeve is connected to the guide sleeve screw; the upper die punch passes through the spring hole and is placed in the guide groove of the upper die guide sleeve.

[0016] As a preferred technical solution, the upper mold handle is threadedly connected to the top of the upper mold connecting piece, and a spring is arranged between the upper mold handle and the spring hole.

[0017] The beneficial effects of the utility model are as follows: the utility model updates the closed parts (U-shaped with equal dimensions on both sides) that cannot be processed by the traditional riveting machine to a new processing method, optimizes the mold part structure, solves the disadvantage that the U-shaped closed parts cannot be processed by machine riveting, improves production efficiency, reduces processing difficulty and production cost;

[0018] The utility model riveting die has high efficiency, good strength, convenient disassembly and reusability, and is suitable for processing most parts that require riveting processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the punching structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the upper die guide sleeve of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the upper mold connecting piece of the utility model;

[0024] Figure 5 This is a schematic diagram of the upper mold handle structure of the utility model;

[0025] Figure 6It is a schematic diagram of the upper die punch structure of the utility model;

[0026] Figure 7 This is a schematic diagram of the lower mold structure of the utility model;

[0027] Figure 8 It is a schematic diagram of the spring structure of the utility model;

[0028] Fig. 9 This is a schematic diagram of the guide sleeve screw structure of the utility model;

[0029] Fig.10 and Fig.11 It is a schematic diagram of the processed product of the utility model;

[0030] Description of reference numerals:

[0031] 1. Upper die guide sleeve; 2. Upper die connecting piece; 3. Upper die handle; 4. Upper die punch; 5. Guide sleeve screw; 6. Spring; 7. Lower die; 8. Contour groove; 9. Square avoidance through hole. DETAILED DESCRIPTION

[0032] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0033] like Figure 1-Figure 9 As shown, the utility model is a new type of sheet metal composite riveting die, comprising

[0034] An upper die assembly, wherein a guide sleeve structure is arranged inside the upper die assembly, and one end of the guide sleeve structure is arranged through the upper die assembly; an upper die punch 4 is fixed on the upper die assembly, and the punch end of the upper die punch 4 is placed in the guide sleeve structure;

[0035] The lower die 7 is also provided with a contoured groove 8 on the top and a square avoidance through hole 9 in the center.

[0036] In this embodiment, the upper die assembly includes an upper die connector 2, an upper die handle 3, and an upper die punch 4; a spring hole is provided on the upper die connector 2, and an upper die guide sleeve 1 is inserted into the spring hole from the bottom of the upper die connector 2;

[0037] The guide sleeve structure is arranged in the spring hole and passes through the upper die connecting piece 2; the upper die punch 4 is installed below the upper die handle 3, and the punch end of the upper die punch 4 passes through the spring hole and is placed in the guide sleeve structure.

[0038] The utility model abandons the traditional riveting die and designs a new type of combined structure. Except for the spring, the other parts are all turned and assembled through the internal and external threads and springs of the upper die connecting piece and the upper die handle; wherein the upper die guide sleeve 1 ensures the accuracy of -0.02mm, and the upper die connecting piece 2 ensures the accuracy of +0.02mm. After the upper die guide sleeve 1 and the upper die connecting piece 2 are combined, the spring is installed in the spring hole of the upper die connecting piece 2, and the upper die guide sleeve 1 and the upper die connecting piece 2 are fixed by the guide sleeve screw. In addition, the upper die handle 3 and the upper die punch 4 are fixed by internal and external threads.

[0039] The guide sleeve structure includes an upper die guide sleeve 1 and a guide sleeve screw 5;

[0040] The guide sleeve screw 5 is placed in the spring hole, and the upper die guide sleeve 1 is connected to the guide sleeve screw 5; the upper die punch 4 passes through the spring hole and is placed in the guide groove of the upper die guide sleeve 1;

[0041] Using the punching die principle, the traditional riveting die is optimized into a combined die (the upper die presses the material first, and the punch extrudes it). A contoured groove is opened on the top of the lower die (a square avoidance hole is opened in the center). After the parts are placed, the riveting is completed in one step, which increases the production efficiency by more than 200%. The processed products have high precision, stable size and beautiful appearance.

[0042] In this embodiment, the upper mold handle 3 is threadedly connected to the top of the upper mold connecting member 2, and a spring 6 is provided between the upper mold handle 3 and the spring hole.

[0043] Here’s how it works:

[0044] like Figure 10-11 As shown, during processing, the upper die (combined die) moves downward, the rivet passes through the part and is placed in the contoured groove of the lower die, the upper die guide sleeve moves to the surface of the part, the spring is pressurized upward after being stressed to stabilize and fix the part, and the upper die punch moves to the rivet for pressure forming.

[0045] This die has a simple structure, low cost, easy assembly, stable performance, and long-term use; traditional riveting dies cannot process closed parts and require manual operation, which is costly, inefficient, and has unstable product quality. This riveting die adopts split installation, low processing cost, stable structure, and simple and convenient later maintenance, which solves the disadvantage of traditional riveting dies that cannot process closed parts and is suitable for all types of products that require riveting.

[0046] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A new type of sheet metal composite riveting die, characterized in that: include: An upper die assembly, wherein a guide sleeve structure is arranged inside the upper die assembly, and one end of the guide sleeve structure is arranged through the upper die assembly; an upper die punch (4) is fixed on the upper die assembly, and the punch end of the upper die punch (4) is placed in the guide sleeve structure; A lower die (7) is provided with a contoured groove (8) at the top and a square avoidance through hole (9) at the center.

2. The novel sheet metal composite riveting die according to claim 1 is characterized in that: The upper die assembly comprises an upper die connecting piece (2), an upper die handle (3), and an upper die punch (4); The upper die connecting piece (2) is provided with a spring hole, and the upper die guide sleeve (1) is inserted into the spring hole from the bottom of the upper die connecting piece (2); The guide sleeve structure is arranged in the spring hole and passes through the upper die connecting piece (2); The upper die punch (4) is installed below the upper die handle (3), and the punch end of the upper die punch (4) passes through the spring hole and is placed in the guide sleeve structure.

3. The new sheet metal composite riveting die according to claim 1 is characterized in that: The guide sleeve structure comprises an upper die guide sleeve (1) and a guide sleeve screw (5); The guide sleeve screw (5) is placed in the spring hole, and the upper die guide sleeve (1) is connected to the guide sleeve screw (5); the upper die punch (4) passes through the spring hole and is placed in the guide groove of the upper die guide sleeve (1).

4. The novel sheet metal composite riveting die according to claim 2 is characterized in that: The upper die handle (3) is threadedly connected to the top of the upper die connecting piece (2), and a spring (6) is arranged between the upper die handle (3) and the spring hole.

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