What is an Orbital Riveter?

Hydraulic riveting machine is a riveting machine that organically combines machinery, hydraulic pressure and electrical control technology.It is suitable for automobiles, ships, bridges, boilers, construction and other industries, especially in the riveting production line of automobile beams. Applications. It is characterized by high riveting force, high riveting work efficiency, low vibration, low noise, reliable riveting operation quality, and also reduces the labor intensity of workers. ^[1]

Hydraulic riveting machine, its hydraulic system includes hydraulic station, hydraulic cylinder, hydraulic station is fixed on the base, hydraulic cylinder is fixed on the frame, the clamping mouth is fixed on the frame through an adjustable connecting rod, the clamping mouth can be clamped and Locate the rivets sent from the automatic feeding mechanism. The hydraulic system generates low noise when standby, which can save power consumption and reduce production costs. It has high work efficiency, good processing quality, solid machine structure, light and convenient operation, and greatly improves work efficiency. .

Multifunctional use of hydraulic riveting machine is suitable for pressing, punching, riveting, assembling, cutting of larger workpieces.

The hydraulic riveting machine uses the principle of air pressure boosting, which can meet the requirements of high speed and high pressure. The pressure adjustment is easy, as long as the corresponding pneumatic pressure is adjusted, the required pressure can be obtained, which is simple and convenient.

Processing A3 steel with rivet diameter 12-16mm

Riveting pressure 20-63KN

Allowable output pressure of oil pump: 2.5MPa

Maximum working stroke of rivet head 40mm

Maximum closed height 250mm

20mm closing height adjustment

Throat depth 130mm

Riveting head extension length 36mm

Worktable size 300 × 350 (mm)

1.8KW

Oil pump motor turns clockwise

Overall size 300 × 550 × 700mm

Adjustable range of rivet head 0 20mm

JMY- 31.5A Hydraulic Riveting Machine

MY- 31. 5A hydraulic riveting machine is a riveting machine that replaces the traditional pneumatic riveting machine. The machine applies hydraulic and electrical control technology. It combines hydraulic pressure, electrical control and mechanical manufacturing. Compared with pneumatic riveting machine, it has large riveting force, high riveting efficiency, low vibration, low noise, and safe and reliable riveting. The riveting design has a maximum riveting pressure of 315KN, and can be used for various steel rivets with cold riveting 13mm and hot riveting less than 23mm, which can be widely used in various industries with riveted structures, such as automobiles, ships, boilers, bridges, and construction.

Overall structure of hydraulic riveting machine

Structural drawing of hydraulic riveting machine

The overall structure of the hydraulic riveting machine is shown in Figure 1. The hydraulic riveting machine consists of ten parts, which are: fuel tank parts, electrical control box parts, motor parts, hydraulic generator parts, riveter parts, oil cylinder parts, suspension device parts, moving trolley parts, and guide rail parts.

Main design technical parameters of hydraulic riveting machine

Fuel tank capacity: 0.4

Rivet material: 16Mn

Nominal riveting pressure: 315kN

Hydraulic pump pressure: 6.3MPa

Hydraulic boost ratio: 1: 5

Number of riveting strokes: 15 20 times / min

Maximum system pressure: 31.5MPa

Maximum rivet diameter: cold riveting 13 hot riveting 20

The riveting requires a safe and reliable working process, and the riveting action can be single-stroke automatic and continuous automatic.

Principle of hydraulic system of hydraulic riveting machine

Hydraulic schematic diagram of hydraulic riveting machine

The hydraulic principle of the hydraulic riveting machine is shown in Figure 2.

It can be seen from the hydraulic schematic that the hydraulic system has the following characteristics:

(1) The medium pressure vane pump with lower price and less hydraulic fluid pulsation is selected as the hydraulic power source.

(2) A three-position four-way solenoid valve with H-type neutral function is selected to realize the commutation of the liquid flow and the unloading of the pump.

(3) A two-position four-way solenoid valve is used to control the booster cylinder to achieve system hydraulic pressure boosting to meet the high pressure requirements of the working cylinder.

(4) A medium pressure pressure relay SP1 is selected to control the fast forward and fast forward of the working cycle, and a high pressure pressure relay SP2 controls the fast forward and fast reverse of the working cycle. The pressure relays SP1 and SP2 are signaled by the system as the load is converted into pressure.The two time relays in the circuit system are controlled to achieve the purpose of controlling the switching time of the solenoid valve.This controls the fast forward, industrial advance, and fast speed of the working cylinder. The time required for retreat can realize the jog, single stroke automatic and continuous automatic control of the work cycle ^[2] .