Pressing rivet stud, traceless pressing and burying structure and industrial personal computer

Abstract

The utility model aims to disclose a pressing rivet stud, a traceless pressing and burying structure and an industrial personal computer, and relates to the technical field of industrial personal computer assembly, the pressing rivet stud comprises a stud, a flower tooth stud bottom and a flower tooth step which are concentrically arranged, and a material extruding groove is formed between the flower tooth stud bottom and the flower tooth step; the utility model has the technical effects that the tooth column bottom, the tooth step and the material extruding groove are arranged, when the tooth column bottom is riveted into the counter bore, the metal material in the counter bore is extruded into the material extruding groove to realize riveting, and meanwhile, the tooth step is riveted into the periphery of the counter bore; due to the existence of the flower tooth step, on one hand, the stud cannot rotate at will when the nut is screwed in, and on the other hand, large friction force exists between the nut and the flower tooth step after the nut is screwed, and the nut is not prone to loosening under the vibration condition; the counter bore is formed in the sheet metal part, the pressing rivet stud is anchored into the counter bore, the pressing rivet stud cannot be seen from the outer surface of the sheet metal part, the appearance face of the sheet metal part is not affected, and traceless pressing burying is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial computer assembly, in particular to a pressure riveted stud, a traceless pressure embedding structure and an industrial computer. Background Art

[0002] The chassis of industrial computers are mostly made of sheet metal and fixed with ordinary rivet studs. At present, ordinary rivet studs are usually external hexagonal heads, which are suitable for riveting thinner sheet metal parts. Sheet metal parts need to have through holes and be directly riveted with rivet studs. After riveting, the traces of hexagonal studs can be directly seen on the outer surface of the sheet metal, which is not beautiful and needs to be painted and puttyed. If the surface of the sheet metal is anodized, the reprocessing of the surface of the sheet metal after riveting will increase the cost and complicate the process.

[0003] In view of this, it is necessary to develop a pressure riveting stud, a traceless pressure embedding structure and an industrial control computer to overcome the above defects. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the utility model is to disclose a pressure riveted stud, a traceless pressure embedding structure and an industrial control computer.

[0005] The first invention objective of the utility model is to provide a self-clinching stud.

[0006] The second invention objective of the utility model is to provide a traceless buried structure.

[0007] The third invention objective of the utility model is to provide an industrial computer.

[0008] In order to achieve the above first invention purpose, the utility model provides a self-clinching stud, which comprises a stud, a tooth column bottom and a tooth step arranged concentrically, and an extrusion groove is arranged between the tooth column bottom and the tooth step;

[0009] The diameter of the flower tooth step is greater than the diameter of the flower tooth column bottom.

[0010] Preferably, the stud is provided with an internal thread or an external thread.

[0011] Preferably, the internal thread passes through the stud, the tooth step and the tooth column bottom.

[0012] Preferably, the external thread stops at the flower tooth step.

[0013] Preferably, the cross section of the extrusion trough is a curved surface.

[0014] Based on the same inventive principle, in order to achieve the above second inventive object, the utility model provides a traceless embedded structure, including a sheet metal part and the pressure riveting stud described in the first invention;

[0015] The sheet metal part is provided with a countersunk hole;

[0016] The toothed column bottom of the self-clinching stud described in the first invention is riveted into the countersunk hole, and the toothed step of the self-clinching stud described in the first invention is riveted into the sheet metal part.

[0017] Preferably, the outer surface of the flower tooth step is flush with the surface of the sheet metal part.

[0018] Preferably, an anodized layer is provided on the outer surface of the sheet metal part.

[0019] Based on the same inventive principle, in order to achieve the above-mentioned third invention purpose, the utility model provides an industrial computer, including a chassis, and the sheet metal parts of the chassis are assembled using the seamless buried structure described in the second invention.

[0020] Compared with the prior art, the technical effects of the utility model are as follows:

[0021] The utility model is provided with a toothed column bottom, a toothed step and an extrusion groove. When the toothed column bottom is riveted into the countersunk hole, the metal material in the countersunk hole is squeezed into the extrusion groove to achieve riveting, and at the same time, the toothed step is riveted into the surrounding of the countersunk hole. With the toothed step, on the one hand, the stud will not rotate at will when the nut is screwed in, and on the other hand, a large friction force is provided between the nut and the toothed step after the nut is tightened, so it is not easy to loosen under vibration. The sheet metal part is provided with a countersunk hole, and the rivet stud is anchored in the countersunk hole. The rivet stud cannot be seen from the outer surface of the sheet metal part, and the appearance of the sheet metal part is not affected, thereby achieving traceless burial. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a top view schematic diagram of the traceless buried structure of the utility model.

[0024] Figure 2 This utility model Figure 1 Schematic diagram of the cross-section at AA.

[0025] Figure 3 This utility model Figure 2 Enlarged structural diagram at point B.

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the industrial control computer case of the utility model.

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the pressure riveting stud of the utility model.

[0028] Among them, 1. stud; 2. tooth column bottom; 3. tooth step; 31. outer surface; 4. extrusion trough; 5. countersunk hole; 6. sheet metal; 61. surface; 62. outer surface; 7. riveting tool. DETAILED DESCRIPTION

[0029] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0030] In the description of the present invention, 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 indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] Example 1

[0032] See also Figure 1-Figure 5 This embodiment discloses a specific implementation of a self-clinching stud.

[0033] Self-clinching studs, see Figure 1-Figure 5 The pressure riveted stud comprises a stud 1, a tooth column bottom 2 and a tooth step 3 which are arranged concentrically, a material extrusion groove 4 is arranged between the tooth column bottom 2 and the tooth step 3; the diameter of the tooth step 3 is larger than the diameter of the tooth column bottom 2; the stud 1 is provided with an internal thread or an external thread, the internal thread passes through the stud 1, the tooth step 3 and the tooth column bottom 2; the external thread ends at the tooth step 3.

[0034] Specifically, see Figure 1-Figure 5 The pressure riveting stud of this embodiment is provided with a tooth column bottom 2, a tooth step 3 and a material extrusion groove 4. The cross section of the material extrusion groove 4 is an arc surface. The material extrusion groove 4 surrounds the stud 1. The tooth column bottom 2 is along the Figure 3 When the countersunk hole 5 is riveted in the direction indicated by the middle arrow, the metal material in the countersunk hole 5 is squeezed into the extrusion groove 4 to form a Figure 3The arc surface shown by the dotted line X cooperates with the extrusion groove 4 and the teeth of the tooth column bottom 2 to achieve synchronous riveting in the axial and circumferential directions. At the same time, the tooth step 3 is riveted into the surrounding of the countersunk hole 5 to form Figure 3 In the bonding surface shown by the middle dotted line Y, the teeth of the tooth step 3 restrict the circumferential direction of the embedded stud, and it is not easy to loosen in the circumferential direction; the existence of the tooth step 3, on the one hand, when the nut is screwed in, the stud 1 will not rotate at will, on the other hand, after the nut is tightened, there is a large friction between the nut and the tooth step 3, and it is not easy to loosen under vibration; the sheet metal 6 is provided with a countersunk hole 5, and the self-riveted stud is anchored in the countersunk hole 5. The self-riveted stud cannot be seen from the outer surface of the sheet metal 6, and does not affect the appearance of the sheet metal 6, thereby realizing seamless embedding.

[0035] Example 2

[0036] See also Figure 1-Figure 5 This embodiment discloses a specific implementation of a seamless buried structure.

[0037] The traceless embedded structure comprises a sheet metal part 6 and the pressure riveting stud described in Example 1; the sheet metal part 6 is provided with a countersunk hole 5; the tooth column bottom 2 of the pressure riveting stud described in Example 1 is riveted into the countersunk hole 5, and the tooth step 3 of the pressure riveting stud described in Example 1 is riveted into the sheet metal part 5. Figure 3 , the pressure riveting tool 7 applies pressure to the pressure riveting stud in the direction indicated by the arrow 3, so that the bottom 2 of the tooth column is riveted into the countersunk hole 5, forming Figure 3 The arc surface shown by the dotted line X cooperates with the extrusion groove 4, the tooth step 3 is riveted into the sheet metal part 5, and the outer surface 31 of the tooth step 3 is flush with the surface 61 of the sheet metal part 6, forming Figure 3 In the joint surface shown by the middle dotted line Y, the teeth of the toothed step 3 restrict the circumferential direction of the embedded stud, and it is not easy to loosen in the circumferential direction. Since the rivet stud is riveted into the countersunk hole 5, no rivet marks can be seen on the outer surface 62 of the sheet metal part 6, and the rivet is embedded without marks, which is beautiful in appearance. When the outer surface 62 of the sheet metal part 6 is provided with an anodized layer, the outer surface of the sheet metal part 6 will not be damaged, and there is no need to repaint, which is beautiful and low in cost.

[0038] The rivet studs included in the seamless embedded structure of Example 2 are specifically described in Example 1 and will not be described again here.

[0039] Example 3

[0040] See also Figure 1-Figure 5 , this embodiment discloses a specific implementation of an industrial computer.

[0041] The industrial computer includes a chassis, and the sheet metal parts 6 of the chassis are assembled using the traceless buried structure described in Example 2. No rivet screws can be seen on the outside of the chassis, and there are no traces of rivet screws on the appearance of the chassis. The appearance is beautiful and does not require repainting, which has cost advantages.

[0042] The seamless buried structure in the industrial computer of Example 3 is specifically described in Example 2, which will not be described in detail here.

Claims

1. The pressure riveting stud is characterized by: The pressure riveting stud comprises a stud, a tooth column bottom and a tooth step which are arranged concentrically, and an extrusion groove is arranged between the tooth column bottom and the tooth step; The diameter of the flower tooth step is greater than the diameter of the flower tooth column bottom.

2. The self-clinching stud according to claim 1, characterized in that: The stud is provided with an internal thread or an external thread.

3. The self-clinching stud according to claim 2, characterized in that: The internal thread passes through the stud, the tooth step and the tooth column bottom.

4. The self-clinching stud according to claim 2, characterized in that: The external thread stops at the flower tooth step.

5. The self-clinching stud according to any one of claims 1 to 4, characterized in that: The cross section of the extrusion trough is a curved surface.

6. Seamless buried structure, characterized in that: It comprises a sheet metal part and the self-clinching stud according to any one of claims 1 to 5; The sheet metal part is provided with a countersunk hole; The toothed column bottom of the self-clinching stud described in any one of claims 1-5 is riveted into the countersunk hole, and the toothed step of the self-clinching stud described in any one of claims 1-5 is riveted into the sheet metal part.

7. The seamless buried structure according to claim 6, characterized in that: The outer surface of the flower tooth step is flush with the surface of the sheet metal part.

8. The seamless buried structure according to claim 6, characterized in that: An anodized layer is provided on the outer surface of the sheet metal component.

9. Industrial computer, characterized in that, It comprises a chassis, the sheet metal parts of which are assembled using the seamless buried structure described in any one of claims 6-8.

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