阅读说明：本技术 一种旋铆头组件 (Spin riveting head assembly ) 是由 董桂林 于 2021-03-02 设计创作，主要内容包括：本发明公开了一种旋铆头组件,包括上模,所述上模的下表面嵌入式安装有调整垫片,所述上模的下端固定连接有下模,所述下模的内部上端固定安装有推力球轴承,所述推力球轴承的内部固定安装有轴承座,所述轴承座的上端设置有卡簧,所述卡簧的上端设置有压紧套,所述轴承座的内部套接有铆接杆,所述铆接杆的中间位置外表面与下模之间固定安装有两个滚针轴承；所述上模与下模的连接面为斜面,所述斜面的角度为1-6度,所述上模与下模连接处的外表面套接有套圈；所述铆接杆垂直于上模与下模的连接面,所述铆接杆与上模、下模轴线的偏角为1-6度。本发明有效解决了传统旋铆头因受力过大极易损坏、寿命短的问题,且铆接效果较好。(The invention discloses a riveting head assembly, which comprises an upper die, wherein an adjusting gasket is embedded in the lower surface of the upper die, the lower end of the upper die is fixedly connected with a lower die, a thrust ball bearing is fixedly arranged at the upper end inside the lower die, a bearing seat is fixedly arranged inside the thrust ball bearing, a clamp spring is arranged at the upper end of the bearing seat, a pressing sleeve is arranged at the upper end of the clamp spring, a riveting rod is sleeved inside the bearing seat, and two needle roller bearings are fixedly arranged between the outer surface of the middle position of the riveting rod and the lower die; the connecting surface of the upper die and the lower die is an inclined surface, the angle of the inclined surface is 1-6 degrees, and a ferrule is sleeved on the outer surface of the connecting part of the upper die and the lower die; the riveting rod is perpendicular to the connecting surface of the upper die and the lower die, and the deflection angle of the riveting rod with the axial lines of the upper die and the lower die is 1-6 degrees. The invention effectively solves the problems that the traditional rotary riveting head is easy to damage due to overlarge stress and has short service life, and the riveting effect is better.)

1. The utility model provides a spin riveting head subassembly, includes mould (1), its characterized in that, go up the embedded adjusting shim (2) of installing of lower surface of mould (1), go up lower extreme fixedly connected with lower mould (3) of mould (1), the inside upper end fixed mounting of lower mould (3) has thrust ball bearing (4), the inside fixed mounting of thrust ball bearing (4) has bearing frame (5), the upper end of bearing frame (5) is provided with jump ring (9), the upper end of jump ring (9) is provided with compresses tightly cover (6), riveting pole (7) have been cup jointed to the inside of bearing frame (5), fixed mounting has two bearing (8) between the intermediate position surface of riveting pole (7) and lower mould (3).

2. The spin head assembly of claim 1, wherein: the connecting surface of the upper die (1) and the lower die (3) is an inclined surface, the angle of the inclined surface is 1-6 degrees, and a ferrule (10) is sleeved on the outer surface of the connecting part of the upper die (1) and the lower die (3).

3. The spin head assembly of claim 1, wherein: the upper die (1) and the lower die (3) are fixedly connected through two inner hexagonal cylindrical head screws (11) and two inner threaded cylindrical pins (12) which are arranged at the top end of the upper die (1) and an inner hexagonal concave end fastening screw (13) which is arranged on one side of the lower die (3).

4. The spin head assembly of claim 1, wherein: the riveting rod (7) is perpendicular to the connecting surface of the upper die (1) and the lower die (3), and the deflection angle of the riveting rod (7) with the axis of the upper die (1) and the axis of the lower die (3) is 1-6 degrees.

5. The spin head assembly of claim 1, wherein: the thrust ball bearing (4) and the two needle roller bearings (8) are located on the same axis.

6. The spin head assembly of claim 1, wherein: and a U-shaped spring is arranged in an inner hole of the bearing seat (5).

Technical Field

The invention relates to the technical field of spin riveting machines, in particular to a spin riveting head assembly.

Background

The riveting machine (also called as a riveting machine, a spin riveting machine, a rolling riveting machine and the like) is a novel riveting device developed according to a cold rolling principle, and is mechanical equipment capable of riveting objects by rivets. The device has compact structure, stable performance and convenient and safe operation. The most common types are automatic riveters and spin riveters, primarily for the riveting of solid rivets, or larger blind rivets.

The existing spin riveting head is usually an alloy riveting head which is integrally processed and formed, when a riveted pin shaft is made of high-quality alloy structural steel with high hardness and is riveted by adopting a common riveting head, the alloy is simply used as the riveting head, the brittleness of the riveting head is very large, the riveted shape is difficult to control, the riveting head can be easily damaged due to overlarge stress, the service life is short, and the spin riveting effect is poor.

Based on the technical scheme, the invention designs the spin rivet head assembly.

Disclosure of Invention

The invention aims to provide a spin rivet assembly, which aims to solve the problems that the conventional spin rivet in the background art is an alloy rivet which is integrally processed and formed, when a riveted pin shaft is made of high-quality alloy structural steel with high hardness and is riveted by a common rivet, the alloy is only used as the rivet, the brittleness of the rivet is high, the riveted shape is difficult to control, the rivet is easy to damage due to overlarge stress, the service life is short, and the spin rivet effect is poor.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a rivet head subassembly soon, includes the mould, the embedded adjusting shim that installs of lower surface of going up the mould, the lower extreme fixedly connected with lower mould of going up the mould, the inside upper end fixed mounting of lower mould has thrust ball bearing, thrust ball bearing's inside fixed mounting has the bearing frame, the upper end of bearing frame is provided with the jump ring, the upper end of jump ring is provided with compresses tightly the cover, the riveting pole has been cup jointed to the inside of bearing frame, fixed mounting has two bearing between the intermediate position surface of riveting pole and the lower mould.

As a further scheme of the invention, the connecting surface of the upper die and the lower die is an inclined surface, the angle of the inclined surface is 1-6 degrees, and the outer surface of the connecting part of the upper die and the lower die is sleeved with a ferrule.

As a further scheme of the invention, the upper die and the lower die are fixedly connected through two inner hexagonal socket head cap screws arranged at the top end of the upper die, two inner threaded cylindrical pins and an inner hexagonal socket end fastening screw arranged at one side of the lower die.

As a further scheme of the invention, the riveting rod is vertical to the connecting surface of the upper die and the lower die, and the deflection angle of the riveting rod with the axial lines of the upper die and the lower die is 1-6 degrees.

As a further aspect of the present invention, the thrust ball bearing and the two needle roller bearings are located on the same axis.

As a further scheme of the invention, a U-shaped spring is arranged in an inner hole of the bearing seat.

The bearing seat is arranged on the thrust ball bearing, the U-shaped spring is arranged in the inner hole of the bearing seat, the U-shaped spring pushes the U-shaped groove to expand outwards when external force is applied to the inside of the U-shaped spring, and the U-shaped groove is restored to the original shape after the force disappears, so that the riveting rod can make small axial movement. When the rotating shaft rotates, the riveting head assembly is driven to rotate together, the riveting rod rotates together with the riveting head assembly, and the circumference of the riveting rod is stressed by radial force as the riveting rod is arranged in the needle roller bearing; the upper end surface of the riveting rod is subjected to the axial force of the thrust ball bearing, so that when the bottom end surface of the riveting rod is stressed towards the interior of the riveting head assembly, the riveting rod is static and does not rotate, and the riveting rod and the riveting head assembly rotate through the thrust ball bearing and the two needle roller bearings; when the whole force of this spin riveting head subassembly pushes down, can rivet into flat shape with very little power the rivet below, reach the effect of riveting soon, effectively solved traditional spin riveting head because of the too big problem that very easily damages, short-lived of atress.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of an overall cross-sectional structure of a spin-rivet assembly of the present invention;

FIG. 2 is a left side view of the overall construction of a spin head assembly of the present invention;

FIG. 3 is a top view of the overall construction of a spin head assembly of the present invention.

The names of the structures represented by the reference numerals in the description of the drawings are as follows:

1. an upper die; 2. adjusting the gasket; 3. a lower die; 4. a thrust ball bearing; 5. a bearing seat; 6. a compression sleeve; 7. riveting a connecting rod; 8. a needle bearing; 9. a clamp spring; 10. a ferrule; 11. a socket head cap screw; 12. an internal threaded cylindrical pin; 13. and the inner hexagonal concave end fastens the screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a spin riveting head subassembly, includes mould 1, the embedded adjusting shim 2 of installing of lower surface of going up mould 1, go up the lower extreme fixedly connected with lower mould 3 of mould 1, the inside upper end fixed mounting of lower mould 3 has thrust ball bearing 4, thrust ball bearing 4's inside fixed mounting has bearing frame 5, the upper end of bearing frame 5 is provided with jump ring 9, the upper end of jump ring 9 is provided with compresses tightly cover 6, riveting rod 7 has been cup jointed to the inside of bearing frame 5, fixed mounting has two bearing 8 between riveting rod 7's intermediate position surface and the lower mould 3.

Specifically, the connecting surface of the upper die 1 and the lower die 3 is an inclined surface, the angle of the inclined surface is 1-6 degrees, and a ferrule 10 is sleeved on the outer surface of the connecting part of the upper die 1 and the lower die 3.

Specifically, the upper die 1 and the lower die 3 are fixedly connected through two hexagon socket head cap screws 11 and two internal thread cylindrical pins 12 arranged at the top end of the upper die 1 and a hexagon socket head cap fastening screw 13 arranged at one side of the lower die 3.

Specifically, the riveting rod 7 is perpendicular to the connecting surface of the upper die 1 and the lower die 3, and the deflection angle between the riveting rod 7 and the axial lines of the upper die 1 and the lower die 3 is 1-6 degrees.

Specifically, the thrust ball bearing 4 and the two needle roller bearings 8 are located on the same axis.

Specifically, a U-shaped spring is installed in an inner hole of the bearing seat 5.

In practical application, the bearing seat 5 is installed on the thrust ball bearing 4, a U-shaped spring is installed in an inner hole of the bearing seat 5, the U-shaped spring pushes the U-shaped groove to outwards open when external force is applied to the inside of the U-shaped spring, and the U-shaped groove is restored to the original shape after the force disappears, so that the riveting rod 7 can make small axial movement. When the rotating shaft rotates, the riveting head component is driven to rotate together, the riveting rod 7 rotates together with the riveting head component, and the riveting rod 7 is arranged in the needle bearing 8, so that the circumference is stressed radially; the upper end surface of the riveting rod 7 is subjected to the axial force of the thrust ball bearing 4, so when the bottom end of the riveting rod 7 is stressed towards the interior of the riveting head component, the riveting rod 7 is static and does not rotate, and the riveting head component rotate through the thrust ball bearing 4 and the two needle roller bearings 8; when the whole force of this spin riveting head subassembly pushes down, can rivet into flat shape with very little power the rivet below, reach the effect of riveting soon, effectively solved traditional spin riveting head because of the too big problem that very easily damages, short-lived of atress.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.