Die punch structure, cover body forming equipment and electronic product

Abstract

The utility model relates to the technical field of production and manufacturing of cover bodies with studs, in particular to a die punch structure, cover body forming equipment and an electronic product, the die punch structure comprises a punch main body, the punch main body comprises an axially arranged hollow through hole, and one end of the punch main body comprises a punching end; the stamping end comprises a stamping protrusion protruding in the axial direction of the punch body, and the stamping protrusion is used for stamping part of materials of a cover body to be stamped into a groove of a structure to be fixed. According to the utility model, the stud is arranged in the mounting groove and sleeved on the positioning column, stamping is carried out through a die punch structure, the stamping bulge extrudes materials around the mounting groove, the materials are stamped into the positioning groove and form interference with the positioning groove, and the stud cannot be separated from the cover body by axial drawing, so that the stable connection between the stud and the cover body is realized. According to the utility model, a stamping connection mode is adopted, so that the situations of glue leakage, glue overflow, glue failure and the like are avoided under the condition of ensuring stable connection, a bracket structure is omitted, and the cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of the production and manufacturing of stud covers, in particular to a die punch structure, a cover body forming device and an electronic product. Background Art

[0002] When the back cover rotating shaft of the anode product of a laptop is connected, first connect the bracket required for the rotating shaft to the stud, and then bond the bracket to the product back cover. Among them, it is necessary to coat glue on the bracket through a dispensing machine, and then bond the bracket to the product back cover through the glue.

[0003] In the above connection method of the stud and the bracket, there are defects such as long process flow, high difficulty in quality control, and shaft offset. In addition, for adhesive connection, there may be risks of glue overflow and leakage, as well as the risk of debonding in the later stage. Moreover, the dispensing equipment and glue are costly, resulting in high manufacturing costs. Summary of the Utility Model

[0004] In order to solve at least the above technical problems in the prior art, the utility model provides a die punch structure, a cover body forming device and an electronic product.

[0005] On the one hand, the utility model provides a die punch structure, including a punch body. The punch body includes a hollow perforation arranged axially, and one end of the punch body includes a punching end; the punching end includes a punching protrusion protruding axially along the punch body, and the punching protrusion is used for punching part of the material of the to-be-punched cover body into the groove of the to-be-fixed structure.

[0006] In some embodiments, the punching protrusion is arranged in a ring shape at the punching end; the end face of the punching protrusion is a punching surface, and along the axis of the punch body to the circumferential direction, the vertical distance from the punching surface to the punching end gradually increases, thereby forming the inclined punching surface.

[0007] In some embodiments, the punching protrusion includes multiple punching surfaces in a stepped shape; along the axis of the punch body to the circumferential direction, the heights of the multiple punching surfaces gradually increase.

[0008] In some embodiments, the inclination angle of the punching surface is 70 degrees to 75 degrees.

[0009] In some embodiments, the distance between one end of the punching protrusion close to the hollow perforation and the inner wall of the hollow perforation has a set distance, and the range of the set distance is 0.1 millimeter to 0.15 millimeter.

[0010] On the other hand, the present utility model also provides a cover body forming device, which includes a stud forming structure, a positioning post forming structure, and the above-mentioned die punch structure; the stud forming structure includes a first milling groove cutter, and the first milling groove cutter is used to form a positioning groove at the end of the outer wall of the stud; the positioning post forming structure includes a second milling groove cutter, and the second milling groove cutter is used to form a mounting groove on the surface of the cover body, the cross-sectional shape of the mounting groove is the same as the cross-sectional shape of the stud, and a positioning post is provided in the middle of the mounting groove; when forming the cover body, the stud is sleeved on the positioning post, and the positioning groove is located in the mounting groove, the hollow through hole of the punch body is sleeved on the stud and moves along the axial direction of the stud towards the cover body, and the stamping protrusion is used to extrude the material around the mounting groove into the positioning groove so that the stud is fixedly connected to the cover body.

[0011] In some embodiments, the positioning groove is an annular groove and is arranged along the circumferential direction of the stud.

[0012] In some embodiments, the volume of the stamping protrusion is 2 to 2.5 times the capacity of the positioning groove, and the height of the stamping protrusion is between one-third and one-half of the thickness of the cover body.

[0013] In some embodiments, the interval between the inner wall of the stud and the outer wall of the positioning post is 0.03 mm to 0.07 mm, and the interval between the inner wall of the hollow through hole of the punch body and the outer wall of the stud is 0.03 mm to 0.07 mm; and / or the depth range of the mounting groove is 0.2 mm to 0.4 mm.

[0014] On the other hand, the present utility model also provides an electronic product, which includes a stud and a cover body; the stud includes a hollow axial through hole, and a positioning groove is provided at the end of the outer wall of the stud; the cover body includes a mounting groove, and a positioning post is provided in the middle of the mounting groove; the axial through hole is sleeved on the positioning post, the end of the stud and the positioning groove are located in the mounting groove, and the side wall of the mounting groove further includes an interference structure stamped in the positioning groove.

[0015] For a die punch structure, a cover body forming device, and an electronic product provided by the present utility model, the stud is connected to the cover body by stamping. Specifically, the stud is placed in the mounting groove and sleeved on the positioning post. Subsequently, a stamping operation is performed through the die punch structure. The stamping protrusion extrudes the material around the mounting groove, and punches this part of the material into the positioning groove to form an interference with the positioning groove. The stud cannot be separated from the cover body by axial pulling, realizing the stable connection of the two. The technical solution of the present utility model cancels the original bonding connection method. The stamping connection method can ensure stable connection and will not cause problems such as glue leakage, glue overflow, or glue opening. Moreover, the bracket structure is cancelled, resulting in lower costs. Brief Description of the Drawings

[0016] By referring to the drawings and reading the detailed description below, the above and other objects, features, and advantages of the exemplary embodiments of the present utility model will become readily understandable. In the drawings, several embodiments of the present utility model are shown in an exemplary rather than restrictive manner, wherein:

[0017] In the drawings, the same or corresponding reference numerals denote the same or corresponding parts.

[0018] Figure 1 A cross-sectional view of the die punch structure provided by an embodiment of the present utility model;

[0019] Figure 2 A cross-sectional view of the stud in the cover forming device provided by an embodiment of the present utility model;

[0020] Figure 3 A cross-sectional view of the cover in the cover forming device provided by an embodiment of the present utility model;

[0021] Figure 4 A cross-sectional view of the cover forming device provided by an embodiment of the present utility model before stamping;

[0022] Figure 5 A cross-sectional view of the cover forming device provided by an embodiment of the present utility model after stamping.

[0023] In the figure:

[0024] 10: Die punch structure;

[0025] 11: Punch body; 12: Hollow perforation; 13: Stamping end; 14: Stamping protrusion; 15: Stamping surface;

[0026] 21: Stud; 22: Positioning groove;

[0027] 31: Cover; 32: Installation groove; 33: Positioning post; 34: Interference structure. Detailed Description of the Embodiments

[0028] To make the objects, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present utility model.

[0029] Such as Figure 1As shown in the figure, an embodiment of the present utility model provides a die punch structure 10, which includes a punch body 11. The punch body 11 includes a hollow perforation 12 arranged axially. One end of the punch body 11 includes a stamping end 13; the stamping end 13 includes a stamping protrusion 14 protruding axially along the punch body 11. The stamping protrusion 14 is used to stamp a part of the material of the to-be-stamped cover body 31 into the groove of the to-be-fixed structure.

[0030] During the stamping operation, the stamping protrusion 14 moves towards the stamping cover body 31, and its moving direction is the axis of the punch body 11. After the stamping protrusion 14 moves a certain distance, it contacts the to-be-stamped cover body 31. And as the stamping protrusion 14 moves, the stamping protrusion 14 stamps a part of the material (also called the interference structure 34) of the to-be-stamped cover body 31 to change its position, that is, stamps this part of the material into the groove of the to-be-fixed structure. This part of the material interferes with the groove, thereby fixing the two and enhancing the pulling force between them, so as to achieve the function of stamping and fixing.

[0031] For example, the stamping protrusion 14 is arranged in a ring shape at the stamping end 13; the end face of the stamping protrusion 14 is a stamping surface 15. Along the direction from the axis of the punch body 11 to the circumferential surface, the vertical distance between the stamping surface 15 and the stamping end 13 gradually increases, thus forming an inclined stamping surface 15.

[0032] During the stamping process of the inclined stamping surface 15, a part of the material of the cover body 31 will be extruded in a set direction, that is, in the direction opposite to the surface of the stamping surface 15. And the to-be-fixed structure is arranged on this path, so as to achieve the purpose of stamping and fixing.

[0033] For example, the stamping protrusion 14 includes multiple stamping surfaces 15 in a stepped shape; along the direction from the axis of the punch body 11 to the circumferential surface, the height of the multiple stamping surfaces 15 gradually increases. During the stamping process, the stamping protrusion 14 gradually extrudes a part of the material of the cover body 31 towards the to-be-fixed structure step by step. This structural design can ensure the smooth movement of a part of the material of the cover body 31, ensure uniform density, and provide a stable pulling force. For example, preferably, the inclination angle of the stamping surface 15 is 70 degrees to 75 degrees.

[0034] For example, the end of the stamping protrusion 14 close to the hollow perforation 12 has a set distance from the inner wall of the hollow perforation 12, and the range of this set distance is 0.1 mm to 0.15 mm. In this structure, the inner diameter of the stamping protrusion 14 is slightly larger. When the stamping surface 15 contacts the cover body 31, as the stamping progresses, a part of the material of the cover body 31 moves along the set direction. The end of the stamping surface 15 is horizontal, that is, it has a horizontal section of 0.1 mm to 0.15 mm. Using this part of the horizontal section for extrusion is more conducive to the directional movement of the interference part.

[0035] An embodiment of the present utility model further provides a cover body forming device, which includes a stud forming structure, a positioning post forming structure, and the above-mentioned die punch structure 10; the stud forming structure is used to process the stud 21 to form the required structure of the stud 21, the positioning post forming structure is used to process the cover body 31 to form the required structure of the cover body 31, and the die punch structure 10 is used for stamping operations to combine the stud 21 and the cover body 31.

[0036] The following will combine the accompanying drawings to detail the structures, the positional relationships and connection relationships of the structures of the cover body forming device provided by the embodiments of the present utility model.

[0037] As Figures 2 to 5 shown, in the embodiment of the present utility model, the stud forming structure includes a first milling groove cutter, and the first milling groove cutter is used to form a positioning groove 22 at the end of the outer wall of the stud 21. For example, the stud 21 is a formed product, and the positioning groove 22 can be milled at a set position by the first milling groove cutter. Or, for example, the stud 21 structure is manufactured by the stud forming structure, and then the positioning groove 22 is milled by the first milling groove cutter. In the embodiment of the present utility model, the manufacturing method of the stud 21 is not limited.

[0038] For example, the positioning groove 22 is an annular groove and is arranged along the circumferential direction of the stud 21. When stamping and fixing the stud 21, the positioning groove 22 is provided on the outer wall of the stud 21, that is, the entire circumference of the stud 21 can be fixed, which can further improve the fixing stability and uniformity of the stud 21.

[0039] For example, on one side port or both side ports of the positioning groove 22, a plurality of tooth structures are arranged along the circumferential direction of the stud 21. By setting the tooth structures, when interference occurs on both sides of the positioning groove 22, the interference part contacts the tooth structures, and compared with connecting with a smooth circumferential surface, the connection between the two is closer, further improving the assembly stability of the stud 21.

[0040] In the embodiment of the present utility model, the positioning post forming structure includes a second milling groove cutter, and the second milling groove cutter is used to form an installation groove 32 on the surface of the cover body 31. The cross-sectional shape of the installation groove 32 is the same as the cross-sectional shape of the stud 21, and a positioning post 33 is provided in the middle of the installation groove 32. The shape and depth of the positioning groove 22, as well as the position and diameter of the positioning post 33, etc. are all related to the parameters of the stud 21.

[0041] For example, the gap between the inner wall of the stud 21 and the outer wall of the positioning post 33 is from 0.03 mm to 0.07 mm, and the gap between the inner wall of the hollow perforation 12 of the punch body 11 and the outer wall of the stud 21 is from 0.03 mm to 0.07 mm. For example, the gap distance is preferably 0.05 mm. Within the above-mentioned dimensional range, the positioning accuracy between the punch body 11, the stud 21 and the positioning post 33 can be ensured, the deviation can be reduced, and thus the accuracy of stamping forming can be provided.

[0042] For example, the depth range of the installation groove 32 is from 0.2 mm to 0.4 mm. For example, the depth is 0.3 mm. The depth of the installation groove 32 within this range is conducive to the full connection between the stud 21 and the installation groove 32, enabling the drawing force to meet the requirements, and this depth range will not affect the appearance of the product and ensure the consistency of the appearance.

[0043] When the cover body 31 is formed, the stud 21 is sleeved on the positioning post 33. For example, the stud 21 can be clamped by a manipulator to perform moving and placing actions on the stud 21. And the positioning groove 22 is located within the installation groove 32. The hollow perforation 12 of the punch body 11 is sleeved on the stud 21 and moves along the axial direction of the stud 21 towards the cover body 31. The stamping protrusion 14 is used to squeeze the material around the installation groove 32 into the positioning groove 22 so that the stud 21 is fixedly connected to the cover body 31.

[0044] Under the action of an external force, the stamping protrusion 14 stamps on the periphery of the installation groove 32. Since the stamping protrusion 14 has an inclined stamping surface 15, the stamping surface 15 guides the material around the installation groove 32 into the positioning groove 22, causing interference between the stud 21 and the cover body 31. As the stamping continues, the connection between the stud 21 and the cover body 31 becomes stable.

[0045] For example, the volume of the stamping protrusion 14 is 2 to 2.5 times the capacity of the positioning groove 22, and the height of the stamping protrusion 14 is between one-third and one-half of the thickness of the cover body 31. It can be seen from this that the volume of the stamping protrusion 14 is slightly larger, while the volume of the positioning groove 22 is relatively smaller. During use, more volume of material is stamped into the positioning groove 22 to ensure the density of the material in the positioning groove 22 and the stability of the connection.

[0046] An embodiment of the present invention also provides an electronic product, including a stud 21 and a cover body 31; the stud 21 includes a hollow axial perforation, and a positioning groove 22 is provided at the end of the outer wall of the stud 21; the cover body 31 includes an installation groove 32, and a positioning post 33 is provided in the middle of the installation groove 32; the axial perforation is sleeved on the positioning post 33, the end of the stud 21 and the positioning groove 22 are located within the installation groove 32, and the side wall of the installation groove 32 further includes an interference structure 34 stamped into the positioning groove 22.

[0047] The stud 21 and the cover body 31 are connected by stamping. Specifically, the stud 21 is placed in the installation groove 32 and sleeved on the positioning post 33. Subsequently, a stamping operation is performed by the die punch structure 10. The stamping protrusion 14 presses the material around the installation groove 32, and punches this part of the material into the positioning groove 22 to form an interference with the positioning groove 22. The stud 21 cannot be separated from the cover body 31 by axial pulling, realizing the stable connection between the two. Compared with the prior art, the original adhesive connection method is cancelled. The stamping connection method can ensure stable connection and will not cause problems such as glue leakage, glue overflow or glue separation. In addition, the bracket structure is cancelled, resulting in lower costs.

[0048] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0049] 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 specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0050] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A die punch structure, characterized in that: It comprises a punch body (11), the punch body (11) comprises an axially arranged hollow through hole (12), and one end of the punch body (11) comprises a punching end (13); The punching end (13) comprises a punching protrusion (14) protruding axially along the punch body (11), and the punching protrusion (14) is used to punch part of the material of the cover body (31) to be punched into the groove of the structure to be fixed.

2. The die punch structure according to claim 1, characterized in that: The stamping protrusion (14) is annularly arranged on the stamping end (13); The end face of the punching protrusion (14) is a punching face (15), and along the axis of the punch body (11) to the circumferential surface, the vertical distance between the punching face (15) and the punching end (13) gradually increases, thereby forming an inclined punching face (15).

3. The die punch structure according to claim 2, characterized in that: The stamping protrusion (14) comprises a plurality of stepped stamping surfaces (15); Along the direction from the axis of the punch body (11) to the circumference, the heights of the multiple-stage punching surfaces (15) gradually increase.

4. The die punch structure according to claim 3, characterized in that: The inclination angle of the punching surface (15) is 70 to 75 degrees.

5. The die punch structure according to claim 2, characterized in that: An end of the punching protrusion (14) close to the hollow through hole (12) has a set distance from the inner wall of the hollow through hole (12), and the range of the set distance is 0.1 mm to 0.15 mm.

6. A cover body forming device, characterized in that: It comprises a stud forming structure, a positioning column forming structure and a die punch structure (10) as claimed in any one of claims 1 to 5; The stud forming structure comprises a first milling cutter, wherein the first milling cutter is used to form a positioning groove (22) at the end of the outer wall of the stud (21); The positioning column forming structure comprises a second milling cutter, the second milling cutter is used to form a mounting groove (32) on the surface of the cover body (31), the cross-sectional shape of the mounting groove (32) is the same as the cross-sectional shape of the stud (21), and a positioning column (33) is provided in the middle of the mounting groove (32); When the cover body (31) is formed, the stud (21) is sleeved on the positioning column (33), and the positioning groove (22) is located in the installation groove (32). The hollow through hole (12) of the punch body (11) is sleeved on the stud (21) and moves toward the cover body (31) along the axial direction of the stud (21). The stamping protrusion (14) is used to squeeze the material around the installation groove (32) into the positioning groove (22), so that the stud (21) is fixedly connected to the cover body (31).

7. The cover forming device according to claim 6, characterized in that: The positioning groove (22) is an annular groove and is arranged along the circumference of the stud (21).

8. The cover forming device according to claim 6, characterized in that: The volume of the stamping protrusion (14) is 2 to 2.5 times the capacity of the positioning groove (22), and the height of the stamping protrusion (14) is between one third and one half of the thickness of the cover body (31).

9. The cover forming device according to claim 6, characterized in that: The spacing between the inner wall of the stud (21) and the outer wall of the positioning column (33) is 0.03 mm to 0.07 mm, and the spacing between the inner wall of the hollow through hole (12) of the punch body (11) and the outer wall of the stud (21) is 0.03 mm to 0.07 mm; and / or The depth of the mounting groove (32) ranges from 0.2 mm to 0.4 mm.

10. An electronic product, characterized in that: It comprises a stud (21) and a cover (31); The stud (21) comprises a hollow axial through hole, and a positioning groove (22) is provided at the end of the outer wall of the stud (21); The cover body (31) comprises a mounting groove (32), and a positioning column (33) is provided in the middle of the mounting groove (32); The axial through hole is sleeved on the positioning column (33), the end of the stud (21) and the positioning groove (22) are located in the installation groove (32), and the side wall of the installation groove (32) also includes an interference structure (34) stamped in the positioning groove (22).

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