PCB riveting step nail and riveting alignment structure

Abstract

The utility model relates to a riveting step nail and a riveting alignment structure, in particular to a PCB (printed circuit board) riveting step nail and a riveting alignment structure, which comprise a cap body, a fine nail, a rivet sleeve, an expansion head, a riveting core column and the like. The cap body is fixedly connected with a rivet sleeve, the cap body and the rivet sleeve are jointly and movably connected with a rivet core column, one end of the rivet core column is provided with an expansion head, and one side, facing the rivet sleeve, of the cap body is fixedly connected with a thin nail. According to the utility model, through preliminary limiting of the fine nail and final deformation fixing of the rivet sleeve, a workpiece can be rapidly and effectively fixed at a preset position, the workpiece is prevented from deviating in the riveting work of the PCB, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of riveting step nail and riveting alignment structure, in particular to a kind of PCB riveting step nail and riveting alignment structure. BACKGROUND

[0002] PCB riveting process is a kind of in electronic manufacturing field, electronic components and printed circuit board (PCB) are connected mechanically and electrically by riveting method process. The process utilizes specific riveting equipment, by means of heating and stamping, rivet or the foot of component with riveting function and PCB on the corresponding hole or pad are tightly combined, forming stable connection point. This process not only ensures the stability of electronic components on PCB, but also guarantees the good conduction of circuit, is indispensable in electronic assembly.

[0003] In conventional production mode, fixed operation of each layer plate is carried out by means of riveter, but due to the limited riveting fixing force of riveter, slippage easily occurs in pre-laminated structure during pressing process, so that the device cannot realize accurate riveting, seriously affects its electrical performance, and seriously reduces product quality and production efficiency.

[0004] Therefore, it is necessary to design a kind of PCB riveting step nail and riveting alignment structure. INVENTION CONTENTS

[0005] In order to overcome the shortcomings of the riveter in the prior art, such as limited riveting fixing force, workpiece slippage during pressing process and poor stability, the purpose of the utility model is to provide a kind of PCB riveting step nail and riveting alignment structure.

[0006] The technical implementation scheme of the utility model is: a kind of PCB riveting step nail, including cap body, thin nail, rivet sleeve, expansion head and rivet core column, cap body is fixedly connected with rivet sleeve, cap body and rivet sleeve are movably connected with rivet core column, rivet core column one end is provided with expansion head, cap body side towards rivet sleeve is fixedly connected with thin nail.

[0007] As a further preferred scheme, the one end of the rivet core column is designed as a threaded column structure, and a threaded hole is formed on the expansion head to cooperate with the threaded column of the rivet core column.

[0008] As a further preferred scheme, the diameter of the connection between the expansion head and the rivet core column is smaller than the diameter of the rivet core column, and the diameter of the end of the expansion head is larger than the diameter of the rivet core column.

[0009] As a further preferred scheme, the rivet sleeve is fixedly connected with barbs.

[0010] As a further preferred scheme, the rivet sleeve is circumferentially provided with a through slot.

[0011] The utility model also provides a riveting alignment structure, including material board and lug, the material board is equipped with through -hole, the material board through -hole one side fixedly connected with lug, the material board through -hole side opposite with lug is arc -shaped to the through -hole edge, so that a plurality of material board can be connected with each other by the mode of stacking, and the material board is cooperated with PCB riveting step nail through the through -hole.

[0012] Beneficial effects are: 1, the utility model discloses a preliminary location of fine nail and the final deformation fixation of rivet sleeve, can rapidly and effectively fix workpiece in predetermined position, prevent workpiece deviation in PCB riveting work, improve production efficiency.

[0013] 2, the design of threaded column and threaded hole in the utility model allows the separation of expansion head and rivet core column by manual operation when the riveting machine fails, thereby completing the riveting work, improving the adaptability and flexibility of the device, and ensuring the reliability in different working environments.

[0014] 3, the utility model discloses the design of barb increases the gripping force of workpiece after the deformation of rivet sleeve, effectively prevents the falling of rivet sleeve in the riveting process, further enhances the stability of riveting work. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the first kind of three-dimensional structure schematic view of the utility model.

[0016] Figure 2 It is the three-dimensional structure schematic view of the cap body, fine nail and rivet sleeve of the utility model.

[0017] Figure 3 It is the three-dimensional structure schematic view of the expansion head and rivet core column of the utility model.

[0018] Figure 4 It is the explosion view of threaded column and threaded hole of the utility model.

[0019] Figure 5 It is the second kind of three-dimensional structure schematic view of the utility model.

[0020] Label name in drawing: 1-cap body, 2-fine nail, 3-rivet sleeve, 4-barb, 5-expansion head, 6-rivet core column, 7-threaded column, 8-threaded hole, 9-material board, 10-lug. DETAILED DESCRIPTION

[0021] The preferred technical scheme of the utility model is described in detail below with reference to the drawings.

[0022] Example 1: a kind of PCB riveting step nail, as Figures 1-4As shown, including the cap body 1, thin nail 2, rivet sleeve 3, expansion head 5 and rivet core column 6, the cap body 1 is fixedly connected with the rivet sleeve 3, and the cap body 1 and the rivet sleeve 3 are movably connected with the rivet core column 6, one end of the rivet core column 6 is provided with the expansion head 5, and the side of the cap body 1 facing the rivet sleeve 3 is fixedly connected with the thin nail 2. Here, the diameter of the connection between the expansion head 5 and the rivet core column 6 is smaller than the diameter of the rivet core column 6, and the diameter of the end of the expansion head 5 is larger than the diameter of the rivet core column 6. The rivet sleeve 3 is provided with a through slot in the circumferential direction.

[0023] As shown in Figure 4 , one end of the rivet core column 6 is designed as a threaded column 7, and a threaded hole 8 is formed in the expansion head 5 to cooperate with the threaded column 7 of the rivet core column 6. Here, the design of the threaded column 7 and the threaded hole 8 can separate the expansion head 5 and the rivet core column 6 manually in case of failure of the rivet machine, realize manual riveting, and effectively improve the flexibility of the device.

[0024] As shown in Figure 2 , the rivet sleeve 3 is fixedly connected with the barb 4. Here, the design of the barb 4 can increase the gripping force on the workpiece after the deformation of the rivet sleeve 3, prevent the rivet sleeve 3 from falling off during the riveting process, and ensure the stability of the riveting work.

[0025] The device is used for fixing workpieces. In use, the device is inserted through the through hole on the workpiece, then pressure is applied to the cap body 1, so that the cap body 1 is pressed to extrude the thin nail 2, the thin nail 2 is inserted into the workpiece and limits the workpiece, until the cap body 1 contacts the workpiece, the device fixes the workpiece through the limitation of the thin nail 2, then the end of the rivet core column 6 away from the expansion head 5 is inserted into the rivet machine, then the rivet machine is started, the rivet machine applies tension to the rivet core column 6, so that the rivet core column 6 gradually separates from the rivet sleeve 3, and the expansion head 5 moves in the process of the rivet core column 6, so that the expansion head 5 moves into the inside of the rivet sleeve 3, and the expansion head 5 extrudes the rivet sleeve 3 in the moving process, the rivet sleeve 3 is deformed under the influence of the expansion head 5, so that the rivet sleeve 3 is radially expanded, until the expansion head 5 moves to the through hole of the workpiece, the expansion head 5 is kept stationary under the limiting action of the workpiece and the rivet sleeve 3, and the rivet machine continues to apply tension to the rivet core column 6, so that the connection between the rivet core column 6 and the expansion head 5 is broken, the expansion head 5 is separated from the rivet core column 6, thereby separating the rivet core column 6, the expansion head 5 falls under the influence of gravity, then the workpiece is fixed through the deformed rivet sleeve 3, and the riveting work of the device is completed.

[0026] Embodiment 2: a riveting alignment structure, as shown in Figure 1 and Figure 5As shown, including the material plate 9 and the protrusion 10, the material plate 9 is clamped with a through hole for the rivet sleeve 3 and the rivet core column 6 to extend into, and the protrusion 10 is fixedly connected to one side of the through hole of the material plate 9. The edge of the through hole on the opposite side of the protrusion 10 is arc-shaped, so that multiple material plates 9 can be connected to each other in a stacked manner. Here, when the protrusion 10 on the material plate 9 extends into the arc-shaped portion of the through hole of another material plate 9, the multiple material plates 9 are tightly connected to each other, effectively preventing the material plate 9 from deviating during riveting.

[0027] During the production of the PCB, multiple material plates 9 are stacked and placed, and the protrusion 10 on the material plate 9 extends into the arc-shaped portion of the through hole of another material plate 9, so that the multiple material plates 9 are tightly connected to each other, effectively preventing the material plate 9 from deviating during riveting. Then, the device is riveted and fixed by the PCB riveting step nail, the device passes through the through hole on the material plate 9, and then pressure is applied to the cap body 1, so that the cap body 1 is pressed and extruded by the pressure. The thin nail 2 penetrates into the material plate 9 and limits the material plate 9, until the cap body 1 contacts the material plate 9. The material plate 9 is fixed by the limitation of the thin nail 2, and then the end of the rivet core column 6 away from the expansion head 5 is inserted into the riveting machine. Then, the riveting machine is started, the riveting machine applies tension to the rivet core column 6, the rivet core column 6 is gradually pulled away from the rivet sleeve 3, and the expansion head 5 moves in the process of the rivet core column 6, so that the expansion head 5 moves into the inside of the rivet sleeve 3. The expansion head 5 extrudes the rivet sleeve 3 in the moving process, the rivet sleeve 3 is deformed under the influence of the expansion head 5, so that the rivet sleeve 3 is radially expanded, until the expansion head 5 moves to the through hole of the material plate 9. The expansion head 5 is kept stationary under the limiting action of the material plate 9 and the rivet sleeve 3, and the riveting machine continues to apply tension to the rivet core column 6, so that the connection between the rivet core column 6 and the expansion head 5 is broken, the expansion head 5 is separated from the rivet core column 6, thereby the rivet core column 6 is pulled away, and the expansion head 5 falls under the influence of gravity. Then, the material plate 9 is fixed by the deformed rivet sleeve 3, and the riveting work of the device is completed.

[0028] The above description is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A PCB riveting stepped pin comprising a cap body (1), characterized in that: Also include a thin nail (2), rivet sleeve (3), expansion head (5) and rivet core column (6), the cap body (1) is fixedly connected with rivet sleeve (3), the cap body (1) and rivet sleeve (3) are jointly and movably connected with rivet core column (6), one end of rivet core column (6) is provided with expansion head (5), the side of cap body (1) facing rivet sleeve (3) is fixedly connected with thin nail (2).

2. A PCB clinching step pin according to claim 1, characterized in that: The one end of rivet core column (6) is designed as a threaded column (7), and a threaded hole (8) is formed in expansion head (5) and matched with the threaded column (7) of rivet core column (6).

3. A PCB clinching step pin according to claim 2, characterized in that: The diameter of the connection between expansion head (5) and rivet core column (6) is less than the diameter of rivet core column (6), and the diameter of the end of expansion head (5) is greater than the diameter of rivet core column (6).

4. A PCB clinching step pin according to claim 3, characterized in that: The rivet sleeve (3) is fixedly connected with barbs (4).

5. A PCB clinching step pin according to claim 4, characterized in that: The rivet sleeve (3) is circumferentially provided with a through slot.

6. A clinch alignment structure suitable for use with the PCB clinch step pin of any one of claims 1 to 5, characterized by, It comprises a material plate (9) and a protrusion (10), the material plate (9) is clamped with a through hole, the protrusion (10) is fixedly connected to one side of the through hole of the material plate (9), and the through hole edge on the side opposite to the protrusion (10) of the through hole of the material plate (9) is arc-shaped, so that multiple material plates (9) can be connected to each other in a stacking manner, and the material plate (9) is matched with the PCB riveting step nail through the through hole.

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