A riveting structure for guiding

Abstract

The application provides a riveting structure for guiding, which comprises a die shell, a plate and a fastener, the fastener and the plate are sequentially arranged on the top of the die shell, the die shell is provided with a first through hole and a guide cavity in the axial direction, the die shell is sequentially provided with a guide assembly, a first spring member and a first adjusting nut from top to bottom in the axial direction, the guide assembly can move up and down in the guide cavity along the axial direction; the plate is provided with a first mounting hole, the fastener, the first mounting hole and the guide assembly are on the same axis, the fastener moves towards the direction of the first spring member by pressing the guide assembly, the guiding riveting between the fastener and the plate is realized, the riveting structure is suitable for different types of fasteners and installation plates, the guide assembly can simultaneously descend along the guide cavity while the fastener and the plate are installed, the fastener can be prevented from being pressed by the guide assembly during the installation process, after the installation is completed, the guide assembly is reset upward by the elastic force of the first spring member, and the riveting installation between the next fastener and plate is realized.

Description

Technical Field

[0001] This application belongs to the technical field of connectors, and particularly relates to a riveting structure for guidance. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.

[0003] The commonly used positioning methods for fastener installation include vision systems (automated installation equipment) that locate fasteners by their shape. Vision systems are expensive and can only be used in fully automated installation equipment. They are also affected by ambient light and other factors. When positioning by the shape of the fastener, the positioning effect is affected by the processing dimensions of the fastener, which can lead to installation problems such as burrs and overflow after the fastener is installed.

[0004] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content

[0005] The purpose of this application is to provide a riveting structure and a connection structure for guidance, so as to solve the above problems.

[0006] This application provides a riveting structure for guidance, comprising:

[0007] A mold shell has a first through hole and a guide cavity along the axial direction inside the mold shell. The inner diameter of the first through hole is smaller than the inner diameter of the guide cavity. The first through hole and the guide cavity form a first step. A guide assembly, a first spring, and a first adjusting nut are arranged sequentially from top to bottom along the axial direction inside the mold shell. The guide assembly can move up and down in the guide cavity along the axial direction and can abut against the first step. The first adjusting nut is threadedly connected to the inner wall of the guide cavity.

[0008] A sheet material is placed on top of the mold shell. The sheet material has a first mounting hole, and the inner diameter of the first mounting hole is the same as the inner diameter of the first through hole. The guide component extends through the first through hole into the first mounting hole of the sheet material and fits against the inner wall of the first mounting hole.

[0009] A fastener is disposed above the plate. The fastener has a flange portion and a connecting portion. The diameter of the flange portion is larger than the inner diameter of the first mounting hole, and the diameter of the connecting portion is smaller than the inner diameter of the first mounting hole. The connecting portion is connected to the guide assembly along the axial direction. The connection between the flange portion and the connecting portion is provided with a material receiving portion recessed toward the flange portion body.

[0010] The fastener, the first mounting hole, and the guide assembly are on the same axis. The connecting portion of the fastener presses against the guide assembly and moves toward the first spring, so that the connecting portion connects with the first mounting hole. Part of the plate is squeezed and deformed and flows into the receiving portion. The flange portion is riveted to the plate, realizing the guide riveting between the fastener and the plate.

[0011] Furthermore, in the aforementioned riveting structure for guidance, the fastener is a bolt, the connecting portion of the bolt includes a second stepped portion and a first shank portion, the guiding component is a first locating pin, the first locating pin has a second mounting hole, the first shank portion of the bolt extends through the second mounting hole into the first spring, and the second stepped portion abuts against the end face of the first locating pin. The second stepped portion presses against the first locating pin and moves toward the first spring, causing the second stepped portion to be guided into the first mounting hole. Part of the sheet metal is squeezed and deformed and flows into the receiving portion. The flange portion of the bolt is riveted to the sheet metal, thereby achieving guided riveting between the bolt and the sheet metal.

[0012] Furthermore, in the aforementioned riveting structure for guidance, the first positioning pin is provided with a base that can abut against the first step portion. The diameter of the base is greater than the inner diameter of the first through hole and less than the inner diameter of the guide cavity. The base is provided with a first groove that can connect the first spring member. The first groove communicates with the second mounting hole, and the diameter of the first groove is greater than the diameter of the second mounting hole.

[0013] Furthermore, in the aforementioned riveting structure for guidance, the connection between the flange portion and the second step portion is provided with a material-containing portion recessed toward the flange portion body, the material-containing portion being able to accommodate the portion of the sheet metal that has been compressed and deformed.

[0014] Furthermore, in the aforementioned riveting structure for guidance, the fastener is a nut, the connecting part of the nut is a second rod, and the flange and the second rod of the nut are provided with a second through hole. The guiding assembly includes a second positioning pin, a third positioning pin disposed in the second positioning pin, a second spring, and a second adjusting nut. The second positioning pin extends through the first through hole into the first mounting hole of the plate and is flush with the upper surface of the plate. The second positioning pin is provided with a through guide hole, and the third positioning pin extends through the guide hole into the second through hole. The second adjusting nut is threadedly connected to the inner wall of the guide hole. The second rod of the nut presses the second positioning pin and moves towards the first spring, so that the second rod is guided into the first mounting hole. Part of the plate is squeezed and deformed and flows into the receiving part. The flange of the nut is riveted to the plate, realizing the guiding riveting between the nut and the plate.

[0015] Furthermore, in the aforementioned riveting structure for guidance, the bottom of the second locating pin is provided with a second groove that can connect to the first spring member, the diameter of the second groove being larger than the diameter of the guide hole, and the bottom of the third locating pin is provided with a third groove that can connect to the second spring member.

[0016] Furthermore, in the aforementioned riveting structure for guidance, the bottom of the second positioning pin is provided with a first limiting part that can abut against the first step portion of the mold shell, and the bottom of the third positioning pin is provided with a second limiting part that can limit the top of the second positioning pin.

[0017] Furthermore, in the aforementioned riveting structure for guidance, the first adjusting nut includes a cylindrical portion and a frustum portion above the cylindrical portion. The cylindrical portion is threadedly connected to the inner wall of the guide cavity, and the bottom end of the first spring abuts against the side wall of the frustum portion.

[0018] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0019] The riveting structure for guidance described in this utility model allows the guide component to descend along the guide cavity simultaneously with the fastener and the plate being installed. This prevents the fastener from being damaged by the guide component during installation. After installation, the guide component is reset by the upward elastic force of the first spring, allowing it to proceed to the riveting installation between the next fastener and the plate. The riveting structure of this utility model is simple in structure and low in processing cost. It is suitable for different types of fasteners and mounting plates, improves the installation quality after fastener installation, avoids installation problems caused by eccentricity, and enhances the riveting effect while also achieving connection performance such as resistance to thrust and torsion, ensuring safety and reliability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a riveting structure for guiding and installing bolt-type fasteners provided in an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the riveting structure for guiding and installing nut-type fasteners provided in the embodiments of this application.

[0023] In the diagram: 1. Mold shell; 11. First through hole; 12. Guide cavity; 13. First step; 2. Plate; 21. First mounting hole; 3. Fastener; 31. Flange; 32. Material receiving part; 33. Second step; 34. First rod; 35. Second rod; 36. Second through hole; 4. Guide assembly; 41. First positioning pin; 411. Base; 42. Second mounting hole; 43. First groove; 44. Second positioning pin; 441. Guide hole; 442. First limiting part; 45. Third positioning pin; 451. Second limiting part; 46. Second spring; 47. Second adjusting nut; 48. Second groove; 49. Third groove; 5. First spring; 6. First adjusting nut; 61. Column part; 62. Frustum. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0025] In the description of this utility model, it should be noted that the terms "upper," "middle," "lower," "inner," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The implementation methods of this utility model will now be described based on its overall structure.

[0026] Example

[0027] Reference Figures 1 to 2 This application provides a riveting structure for guidance, comprising:

[0028] The mold shell 1 has a first through hole 11 and a guide cavity 12 arranged along the axial direction inside the mold shell 1. The inner diameter of the first through hole 11 is smaller than the inner diameter of the guide cavity 12. The first through hole 11 and the guide cavity 12 form a first step portion 13. The mold shell 1 has a guide assembly 4, a first spring 5, and a first adjusting nut 6 arranged sequentially from top to bottom along the axial direction inside the mold shell 1. The guide assembly 4 can move up and down in the guide cavity 12 along the axial direction and can abut against the first step portion 13. The first adjusting nut 6 is threadedly connected to the inner wall of the guide cavity 12.

[0029] Plate 2 is placed on top of the mold shell 1. Plate 2 is provided with a first mounting hole 21, and the inner diameter of the first mounting hole 21 is the same as the inner diameter of the first through hole 11. The guide component 4 extends through the first through hole 11 into the first mounting hole 21 of the plate 2 and fits against the inner wall of the first mounting hole 21.

[0030] Fastener 3 is disposed above plate 2. Fastener 3 has a flange portion 31 and a connecting portion. The diameter of the flange portion 31 is larger than the inner diameter of the first mounting hole 21. The diameter of the connecting portion is smaller than the inner diameter of the first mounting hole 21. The connecting portion is connected to the guide assembly 4 along the axial direction. The connection between the flange portion 31 and the connecting portion is provided with a material receiving portion 32 that is recessed toward the body of the flange portion 31.

[0031] The fastener 3, the first mounting hole 21, and the guide assembly 4 are on the same axis. The connecting portion of the fastener 3 presses against the guide assembly 4 and moves towards the first spring 5, causing the connecting portion to connect with the first mounting hole 21. Part of the plate 2 is squeezed and deformed, flowing into the receiving portion 32. The flange portion 31 is riveted to the plate 2, realizing the guided riveting between the fastener 3 and the plate 2. After the fastener and plate are installed, they have high torsional resistance, high ejection force, and improved installation quality, while also having a long mold shell life.

[0032] Using the above structure, the press automatically guides the fastener 3 and the plate 2 through the guide assembly 4, ensuring that the first mounting holes 21 of the fastener 3 and the plate 2 are on the same axis. When the fastener 3 is pressed down, the guide assembly 4 will descend along the guide cavity 12 at the same time as the fastener 3 is installed with the plate 2, which can avoid the fastener 3 being damaged by the guide assembly 4 during the installation process. After the installation is completed, the mold shell 1 is removed, and the guide assembly 4 is reset by the upward elastic force of the first spring 5, and enters the riveting installation between the next fastener 3 and the plate 2. The riveting structure provided in this embodiment can improve the installation quality of fasteners after installation, avoid installation problems caused by eccentricity and other reasons, and reduce installation problems such as burrs and overflow. This riveting structure is simple in structure and low in processing cost. It is suitable for different types of fasteners and mounting plates. While improving the riveting effect, it can also achieve connection performance such as resistance to thrust and torsion, and is safe and reliable. In addition, the riveting structure of this embodiment can select the corresponding guide components and mold shells according to the thickness of the fastener mounting plate, the diameter of the mounting hole and the type of fastener, which can save installation costs. It can be used in fully automatic equipment or manual equipment.

[0033] Example 1

[0034] Reference Figure 1 This application provides a riveting structure for guidance, comprising:

[0035] The mold shell 1 has a first through hole 11 and a guide cavity 12 arranged along the axial direction inside the mold shell 1. The inner diameter of the first through hole 11 is smaller than the inner diameter of the guide cavity 12. The first through hole 11 and the guide cavity 12 form a first step portion 13. The mold shell 1 has a guide assembly 4, a first spring 5, and a first adjusting nut 6 arranged sequentially from top to bottom along the axial direction inside the mold shell 1. The guide assembly 4 can move up and down in the guide cavity 12 along the axial direction and can abut against the first step portion 13. The first adjusting nut 6 is threadedly connected to the inner wall of the guide cavity 12.

[0036] Plate 2 is placed on top of the mold shell 1. Plate 2 is provided with a first mounting hole 21, and the inner diameter of the first mounting hole 21 is the same as the inner diameter of the first through hole 11. The guide component 4 extends through the first through hole 11 into the first mounting hole 21 of the plate 2 and fits against the inner wall of the first mounting hole 21.

[0037] Fastener 3 is disposed above plate 2. Fastener 3 has a flange portion 31 and a connecting portion. The diameter of the flange portion 31 is larger than the inner diameter of the first mounting hole 21. The diameter of the connecting portion is smaller than the inner diameter of the first mounting hole 21. The connecting portion is connected to the guide assembly 4 along the axial direction. The connection between the flange portion 31 and the connecting portion is provided with a material receiving portion 32 that is recessed toward the body of the flange portion 31.

[0038] The fastener 3, the first mounting hole 21, and the guide assembly 4 are on the same axis. The connecting part of the fastener 3 presses against the guide assembly 4 and moves toward the first spring 5, so that the connecting part is connected to the first mounting hole 21. Part of the plate 2 is squeezed and deformed and flows into the material container 32. The flange 31 is riveted to the plate 2 to realize the guide riveting between the fastener 3 and the plate 2.

[0039] Specifically, in this embodiment, the fastener 3 is a bolt, the connecting portion of the bolt includes a second step portion 33 and a first shank portion 34, the guide component 4 is a first positioning pin 41, the first positioning pin 41 is provided with a second mounting hole 42, the first shank portion 34 of the bolt extends through the second mounting hole 42 into the first spring, and the second step portion 33 abuts against the end face of the first positioning pin 41. The second step portion 33 presses against the first positioning pin 41 and moves toward the first spring component 5, so that the second step portion 33 is guided into the first mounting hole 21, part of the plate 2 is squeezed and deformed and flows into the receiving portion 32, and the flange portion 31 of the bolt is riveted to the plate 2 to realize the guide riveting between the bolt and the plate 2.

[0040] Specifically, in this embodiment, the first positioning pin 41 is provided with a base 411 that can abut against the first step portion 13. The diameter of the base 411 is larger than the inner diameter of the first through hole 11 and smaller than the inner diameter of the guide cavity 12. The base 411 is provided with a first groove 43 that can connect the first spring member 5. The first groove 43 communicates with the second mounting hole 42, and the diameter of the first groove 43 is larger than the diameter of the second mounting hole 42.

[0041] Specifically, in this embodiment, the connection between the flange portion 31 and the second step portion 33 is provided with a material-containing portion 32 that is recessed toward the body of the flange portion 31, and the material-containing portion 32 can accommodate the portion of the plate 2 that has been squeezed and deformed.

[0042] Using the above structure, the press automatically guides the bolt and plate 2 through the first positioning pin 41, ensuring that the first mounting holes 21 of the bolt and plate 2 are on the same axis. The flange portion 31 of the bolt is pressed down, and the first rod portion 34 is embedded in the second mounting hole 42 in the first positioning pin 41. The second step portion 33 is inserted into the first mounting hole 21. While the bolt and plate 2 are being installed, the first positioning pin 41 will descend along the guide cavity 12, which can prevent the bolt from being damaged by the first positioning pin 41 during the installation process. After the installation is completed, part of the plate 2 is squeezed and deformed and flows into the material container 32. The flange portion 31 of the bolt is riveted to the plate 2, realizing the guided riveting between the bolt and the plate 2. The mold shell 1 is removed, and the first positioning pin 41 is reset by the upward elastic force of the first spring 5, and enters the riveting installation between the next bolt and plate 2.

[0043] Example 2

[0044] Reference Figure 2 This application provides a riveting structure for guidance, comprising:

[0045] The mold shell 1 has a first through hole 11 and a guide cavity 12 arranged along the axial direction inside the mold shell 1. The inner diameter of the first through hole 11 is smaller than the inner diameter of the guide cavity 12. The first through hole 11 and the guide cavity 12 form a first step portion 13. The mold shell 1 has a guide assembly 4, a first spring 5, and a first adjusting nut 6 arranged sequentially from top to bottom along the axial direction inside the mold shell 1. The guide assembly 4 can move up and down in the guide cavity 12 along the axial direction and can abut against the first step portion 13. The first adjusting nut 6 is threadedly connected to the inner wall of the guide cavity 12.

[0046] Plate 2 is placed on top of the mold shell 1. Plate 2 is provided with a first mounting hole 21, and the inner diameter of the first mounting hole 21 is the same as the inner diameter of the first through hole 11. The guide component 4 extends through the first through hole 11 into the first mounting hole 21 of the plate 2 and fits against the inner wall of the first mounting hole 21.

[0047] Fastener 3 is disposed above plate 2. Fastener 3 has a flange portion 31 and a connecting portion. The diameter of the flange portion 31 is larger than the inner diameter of the first mounting hole 21. The diameter of the connecting portion is smaller than the inner diameter of the first mounting hole 21. The connecting portion is connected to the guide assembly 4 along the axial direction. The connection between the flange portion 31 and the connecting portion is provided with a material receiving portion 32 that is recessed toward the body of the flange portion 31.

[0048] The fastener 3, the first mounting hole 21, and the guide assembly 4 are on the same axis. The connecting part of the fastener 3 presses against the guide assembly 4 and moves toward the first spring 5, so that the connecting part is connected to the first mounting hole 21. Part of the plate 2 is squeezed and deformed and flows into the material container 32. The flange 31 is riveted to the plate 2 to realize the guide riveting between the fastener 3 and the plate 2.

[0049] Specifically, refer to Figure 2 In this embodiment, the fastener 3 is a nut, the connecting part of the nut is a second rod part 35, and the flange part 31 and the second rod part 35 of the nut are provided with a second through hole 36. The guide assembly 4 includes a second positioning pin 44, a third positioning pin 45 disposed in the second positioning pin 44, a second spring 46 and a second adjusting nut 47. The second positioning pin 44 extends through the first through hole 11 into the first mounting hole 21 of the plate 2 and is flush with the upper surface of the plate 2. The second positioning pin 44 is provided with a through hole. The guide hole 441 is through which the third positioning pin 45 extends into the second through hole 36. The second adjusting nut is threadedly connected to the inner wall of the guide hole 441. The second rod portion 35 of the nut presses against the second positioning pin 44 and moves toward the first spring member 5, so that the second rod portion 35 is guided into the first mounting hole 21. Part of the plate 2 is squeezed and deformed and flows into the material receiving portion 32. The flange portion 31 of the nut is riveted to the plate 2 to realize the guide riveting between the nut and the plate 2.

[0050] Specifically, in this embodiment, the bottom of the second positioning pin 44 is provided with a second groove 48 that can connect to the first spring member 5, the diameter of the second groove 48 is larger than the diameter of the guide hole 441, and the bottom of the third positioning pin 45 is provided with a third groove 49 that can connect to the second spring member 46.

[0051] Specifically, in this embodiment, the bottom of the second positioning pin 44 is provided with a first limiting part 442 that can abut against the first step part 13 of the mold shell 1, and the bottom of the third positioning pin 45 is provided with a second limiting part 451 that can limit the top of the second positioning pin 44.

[0052] Specifically, in this embodiment, the first adjusting nut 6 includes a cylindrical part 61 and a frustum part 62 above the cylindrical part 61. The cylindrical part 61 is threadedly connected to the inner wall of the guide cavity 12, and the bottom end of the first spring member 5 abuts against the side wall of the frustum part 62.

[0053] Using the above structure, the press automatically guides the nut and plate 2 through the second positioning pin 44, ensuring that the first mounting holes 21 of the nut and plate 2 are on the same axis. The flange 31 of the nut is pressed down, the second rod 35 is inserted into the first mounting hole 21, and the third positioning pin 45 descends along the guide hole 441. At the same time as the nut and plate 2 are installed, the second positioning pin 44 will descend along the guide cavity 12, which can prevent the nut from being crushed by the second positioning pin 44 during the installation process. After the installation is completed, part of the plate 2 is squeezed and deformed and flows into the material container 32. The flange 31 of the nut is riveted to the plate 2, realizing the guided riveting between the nut and the plate 2. The mold shell 1 is removed, the second positioning pin 44 is reset by the upward elastic force of the first spring 5, and the third positioning pin 45 is reset by the downward elastic force of the second spring 46, and enters the riveting installation between the next nut and plate 2.

[0054] Although different specific embodiments are mentioned in this application, this application is not limited to the situations described in industry standards or embodiments. Slightly modified implementations based on certain industry standards or custom methods or embodiments can also achieve the same, equivalent, or similar, or predictable, implementation effects as the above embodiments. Embodiments applying these modified or modified data acquisition, processing, output, and judgment methods still fall within the scope of optional implementations of this application.

[0055] Although this application has been described by way of examples, those skilled in the art will know that this application has many modifications and variations without departing from the spirit of this application, and it is intended that the appended embodiments include these modifications and variations without departing from this application.

Claims

1. A riveting structure for guiding, characterized in that, include: A mold shell has a first through hole and a guide cavity along the axial direction inside the mold shell. The inner diameter of the first through hole is smaller than the inner diameter of the guide cavity. The first through hole and the guide cavity form a first step. A guide assembly, a first spring, and a first adjusting nut are arranged sequentially from top to bottom along the axial direction inside the mold shell. The guide assembly can move up and down in the guide cavity along the axial direction and can abut against the first step. The first adjusting nut is threadedly connected to the inner wall of the guide cavity. A sheet material is placed on top of the mold shell. The sheet material has a first mounting hole, and the inner diameter of the first mounting hole is the same as the inner diameter of the first through hole. The guide component extends through the first through hole into the first mounting hole of the sheet material and fits against the inner wall of the first mounting hole. A fastener is disposed above the plate. The fastener has a flange portion and a connecting portion. The diameter of the flange portion is larger than the inner diameter of the first mounting hole, and the diameter of the connecting portion is smaller than the inner diameter of the first mounting hole. The connecting portion is connected to the guide assembly along the axial direction. The connection between the flange portion and the connecting portion is provided with a material receiving portion recessed toward the flange portion body. The fastener, the first mounting hole, and the guide assembly are on the same axis. The connecting portion of the fastener presses against the guide assembly and moves toward the first spring, so that the connecting portion connects with the first mounting hole. Part of the plate is squeezed and deformed and flows into the receiving portion. The flange portion is riveted to the plate, realizing the guide riveting between the fastener and the plate.

2. The riveting structure for guidance according to claim 1, characterized in that, The fastener is a bolt, and the connecting part of the bolt includes a second stepped part and a first shank part. The guide component is a first locating pin, and the first locating pin has a second mounting hole. The first shank part of the bolt extends through the second mounting hole into the first spring, and the second stepped part abuts against the end face of the first locating pin. The second stepped part presses against the first locating pin and moves toward the first spring, so that the second stepped part is guided into the first mounting hole. Part of the plate is squeezed and deformed and flows into the receiving part. The flange part of the bolt is riveted to the plate, realizing the guide riveting between the bolt and the plate.

3. The riveting structure for guidance according to claim 2, characterized in that, The first positioning pin is provided with a base that can abut against the first step portion. The diameter of the base is greater than the inner diameter of the first through hole and less than the inner diameter of the guide cavity. The base is provided with a first groove that can connect the first spring member. The first groove communicates with the second mounting hole, and the diameter of the first groove is greater than the diameter of the second mounting hole.

4. The riveting structure for guidance according to claim 2, characterized in that, The connection between the flange portion and the second step portion is provided with a material-containing portion that is recessed toward the flange portion body, and the material-containing portion is capable of accommodating the portion of the sheet material that has been squeezed and deformed.

5. The riveting structure for guidance according to claim 1, characterized in that, The fastener is a nut, and the connecting part of the nut is a second rod. The flange part and the second rod part of the nut are provided with a second through hole. The guide assembly includes a second positioning pin, a third positioning pin disposed in the second positioning pin, a second spring, and a second adjusting nut. The second positioning pin extends through the first through hole into the first mounting hole of the plate and is flush with the upper surface of the plate. The second positioning pin is provided with a through guide hole. The third positioning pin extends through the guide hole into the second through hole. The second adjusting nut is threaded to the inner wall of the guide hole. The second rod part of the nut presses the second positioning pin and moves towards the first spring, so that the second rod part is guided into the first mounting hole. Part of the plate is squeezed and deformed and flows into the receiving part. The flange part of the nut is riveted to the plate to realize the guide riveting between the nut and the plate.

6. The riveting structure for guidance according to claim 5, characterized in that, The bottom of the second positioning pin is provided with a second groove that can connect to the first spring member. The diameter of the second groove is larger than the diameter of the guide hole. The bottom of the third positioning pin is provided with a third groove that can connect to the second spring member.

7. The riveting structure for guidance according to claim 5, characterized in that, The bottom of the second positioning pin is provided with a first limiting part that can abut against the first step portion of the mold shell, and the bottom of the third positioning pin is provided with a second limiting part that can limit the top of the second positioning pin.

8. The riveting structure for guidance according to claim 1, characterized in that, The first adjusting nut includes a cylindrical part and a frustum part above the cylindrical part. The cylindrical part is threadedly connected to the inner wall of the guide cavity, and the bottom end of the first spring abuts against the side wall of the frustum part.

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