CN2543624Y

CN2543624Y - Swing-rolling type rivet head

Info

Publication number: CN2543624Y
Application number: CN02228730U
Authority: CN
Inventors: 唐千否
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-21
Filing date: 2002-03-21
Publication date: 2003-04-09
Anticipated expiration: 2012-03-21

Abstract

The utility model discloses a swing-rolling type riveting head, consisting of a motor, a main shaft, a tank body, a piston and a riveting base, wherein, the motor is connected with the main shaft by a shaft coupler. The utility model is characterized in that the motor is directly fixed on the upper end surface of the tank body and the main shaft is an integral structure; the upper part of the main shaft is connected with the piston by a vertical bearing and the lower part is connected with the piston by a rolling needle thrust ball unit. The utility model is characterized by simple structure, low cost, low noise and high reliability.

Description

The Swing rolling type riveted joint

Technical field

The utility model relates to the riveting equipment in the field of machining, relates in particular to a kind of Swing rolling type riveted joint in the riveting equipment.

Background technology

So-called pendulum is rolled over riveting, utilizes rivet rod to the rivet pressurized exactly, and swings the clinching method until the rivet moulding continuously around the center.To roll over rivet force little though existing Swing rolling type riveting machine has pendulum, riveted joint element precision, surface quality height, after the riveting rivet metallic fiber be obedient to the metal spontaneous current to, advantages such as the riveted tightness is good, but also there is complex structure in it, the manufacturing cost height, and the main shaft rigidity is poor, the problem that noise height, the accuracy of manufacture are difficult to guarantee.

Summary of the invention

The purpose of this utility model is to provide a kind of designs simplification, low cost of manufacture, and the reliability height, the Swing rolling type riveted joint that noise is little is to overcome the deficiency of above-mentioned background technology.

Goal of the invention of the present utility model is achieved by the following technical solution.A kind of Swing rolling type riveted joint, form by motor, main shaft, cylinder body, piston and rivet set, wherein, motor is connected with main shaft by shaft coupling, its special character is that motor directly is fixed on the cylinder body upper surface, main shaft adopts monolithic construction, and main shaft top adopts journal bearing to link to each other with piston, and the bottom adopts needle roller thrust ball combination bearing to link to each other with piston.

In such scheme, described rivet set directly is fixed on the lower end of main shaft by needle bearing 7,9 and plane thrust bearing 13.

The utlity model has following advantage:

1, motor directly is fixed on the cylinder body, has saved last cylinder sleeve parts, has not only reduced number of spare parts, reduces production costs, but also has reduced issuable leakage link.

2, main shaft adopts monolithic construction, has not only increased the rigidity of main shaft, and the accuracy of manufacture of easier assurance head, reduces noise.

3, select novel needle roller thrust ball combination bearing for use, not only make the handpiece structure compactness, and strengthened that main shaft is anti-radially, the ability of axial load, the service life of obviously improving complete machine, especially more remarkable effect in the large-tonnage riveting machine.

Description of drawings

Accompanying drawing is a structure chart of the present utility model.

Specific embodiments

Referring to accompanying drawing, the utility model mainly is made up of motor 1, main shaft 4, cylinder body 3, piston 14 and rivet set 8, wherein, motor 1 is connected with main shaft 4 by shaft coupling 2, motor 1 directly is fixed on cylinder body 3 upper surfaces by screw, main shaft 4 adopts monolithic construction, and main shaft 4 tops adopt journal bearing 15 to link to each other with piston 14, and the bottom adopts the needle roller thrust ball combination bearing 5 (code name is 6674908) of NKX45 model to link to each other with piston 14.Rivet set 8 directly is fixed on the lower end of main shaft 4 by needle bearing 7,9 and plane thrust bearing 13, and is fixing by promoting 11.Die 12 places in the rivet set 8.Piston 14 places in the cylinder body 3, and its lower end is sealed by sealing ring 10 between piston 14 and the cylinder body 3 by cylinder sleeve 6, sealing ring 10 sealings down.

During the utility model work, under the driving of hydraulic coupling, piston drives main shaft and exerts pressure downwards, while driven by motor main axis rotation, and die is around the main shaft revolution and produce swing, thereby finishes riveting work.

In sum, the utility model is not only novel, and uses, and the design of its innovation really can make it, designs simplification, and low cost of manufacture, the reliability height, noise is little, and its effect is much better than background technology, has substantial characteristics and progress, and is creative.

Claims

1, a kind of Swing rolling type riveted joint, form by motor, main shaft, cylinder body, piston and rivet set, wherein, motor is connected with main shaft by shaft coupling, it is characterized in that motor directly is fixed on the cylinder body upper surface, main shaft adopts monolithic construction, and main shaft top adopts journal bearing to link to each other with piston, and the bottom adopts needle roller thrust ball combination bearing to link to each other with piston.

2,, it is characterized in that institute's rivet set directly is fixed on the lower end of main shaft by needle bearing (7), (9) and plane thrust bearing (13) according to the described Swing rolling type riveted joint of claim 1.