CN101579940A

CN101579940A - Crank rotating angle controller for improved mechanical press

Info

Publication number: CN101579940A
Application number: CNA2009100262658A
Authority: CN
Inventors: 王胜翔
Original assignee: WUXI RUIJIA ACCURATE MACHINERY CO Ltd
Current assignee: WUXI RUIJIA ACCURATE MACHINERY CO Ltd
Priority date: 2009-03-19
Filing date: 2009-03-19
Publication date: 2009-11-18

Abstract

The invention discloses a crank rotating angle controller for an improved mechanical press. At the same time of meeting high reliability, the cost of the crank rotating angle controller for the improved mechanical press is lowered. The crank rotating angle controller for the improved mechanical press comprises a crank rotating shaft, a mechanical switch tank, a slide block and a connecting rod, wherein the crank rotating shaft is connected with the slide block through the connecting rod and connected with the mechanical switch tank through a shaft coupling. The crank rotating angle controller is characterized in that an output end of the mechanical switch tank is provided with a magnetic grid wafer, the outside shaft end face of the magnetic grid wafer is provided with a proximity switch, and the proximity switch is communicated with an input end of a programmable logical controller.

Description

A kind of mechanical press crank rotating angle controller of improvement

(1) technical field

The present invention relates to the punching machine automation field, be specially a kind of mechanical press crank rotating angle controller of improvement.

(2) background technology

Existing machinery forcing press crank rotating angle controller, it drives the switch-box axle by the crank rotation and does rotation synchronously, the multi-disc cam bit is housed on axle, cam bit and axle are rotated together, and collide the electric switch break-make and post a letter by cam bit, finish the Position Control of crank needed each angle in one week and obtain intermediate control signal, often cause phenomenon such as do not signal because of the loose contact of cam bit and switch, its functional reliability is poor, also cause the personal safety accident easily, so a lot of in recent years forcing press manufacturing merchants adopt the so-called electronic cam controller of external Development and Production, it and mechanical switch case are also used, form the dual fail-safe of punching machine control, but because the electronic cam controller of import costs an arm and a leg, its cost is too high.

(3) technology contents

At existing issue, the invention provides a kind of mechanical press crank rotating angle controller of improvement, its satisfy reliability high in, its cost is reduced.

A kind of mechanical press crank rotating angle controller of improvement, its technical scheme is such: it comprises crankshaft, mechanical switch case, slide block, connecting rod, described crankshaft connects slide block by connecting rod, described crankshaft connects described mechanical switch case by shaft coupling, it is characterized in that: the output of described mechanical switch case is equipped with a magnetic grid disk, the outboard shafts end face of described magnetic grid disk is equipped with near switch, the described input that is communicated with programmable logic controller (PLC) near switch.

It is further characterized in that: the output connecting crank corner display instrument of described programmable logic controller (PLC), display instrument upper surface, described crank angle is equipped with counter and angular display unit, and described angular display unit is specially annular and is distributed in a plurality of lamps in display instrument upper surface, described crank angle.

After the employing said structure of the present invention, because the output of described mechanical switch case is equipped with a magnetic grid disk, the outboard shafts end face of described magnetic grid disk is equipped with near switch, the described input that is communicated with programmable logic controller (PLC) near switch, mechanical cam switch in its described mechanical switch case is identical near on-off action with the installation of the axial end of the described magnetic grid disk outside, when punching machine is worked, they play the dual fail-safe effect to the circular motion of bent axle, its reliability is met, owing to used the cydariform control program during program composition of programmable logic controller (PLC), when it just can carry out work by importing pulse signal into programmable logic controller (PLC) near switch, it need not to buy in addition the electronic cam controller of import again, and the structure after improving, the electric cam performance of its application performance and external manufacturing is identical, can save 80% on its cost price, so its cost is reduced.

(4) description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the front view of crank angle of the present invention display instrument.

(5) specific embodiment

See Fig. 1, Fig. 2, it comprises crankshaft 1, mechanical switch case 2, slide block 3, connecting rod 4, crankshaft 1 connects slide block 3 by connecting rod 4, crankshaft 1 connects mechanical switch-box 2 by shaft coupling 5, the output of mechanical switch case 2 is equipped with a magnetic grid disk 6, the outboard shafts end face of magnetic grid disk 6 is equipped with near switch 7, is communicated with the input of programmable logic controller (PLC) 8 near switch 7.The output connecting crank corner display instrument 9 of programmable logic controller (PLC) 8, display instrument 9 upper surfaces in crank angle are equipped with counter 10 and angular display unit, and angular display unit is specially annular and is distributed in a plurality of lamps 11 in display instrument upper surface, crank angle.

Claims

1, a kind of mechanical press crank rotating angle controller of improvement, it comprises crankshaft, mechanical switch case, slide block, connecting rod, described crankshaft connects slide block by connecting rod, described crankshaft connects described mechanical switch case by shaft coupling, it is characterized in that: the output of described mechanical switch case is equipped with a magnetic grid disk, the outboard shafts end face of described magnetic grid disk is equipped with near switch, the described input that is communicated with programmable logic controller (PLC) near switch.

2, according to the mechanical press crank rotating angle controller of the described a kind of improvement of claim 1, it is characterized in that: the output connecting crank corner display instrument of described programmable logic controller (PLC).

3, according to the mechanical press crank rotating angle controller of the described a kind of improvement of claim 2, it is characterized in that: display instrument upper surface, described crank angle is equipped with counter and angular display unit.

4, according to the mechanical press crank rotating angle controller of the described a kind of improvement of claim 3, it is characterized in that: described angular display unit is specially annular and is distributed in a plurality of lamps in display instrument upper surface, described crank angle.