JPS61230883A - Work hand device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a work hand device applied to automatic machinery, industrial robots, conveyance devices, and the like.

<Summary of the Invention> The present invention provides a pneumatic shutter at the opening of a work suction hood to improve the workability of work hand processing and protect the work.

<Conventional Technical Field> Conventionally, there are work hand devices that use air, such as a structure that sucks a workpiece by suction force, or a structure that uses expanding and contracting bellows arranged opposite each other to grip the workpiece between them. Both devices have the disadvantage and inconvenience that the shape of the workpiece is specified.

<Object of the Invention> An object of the present invention is to eliminate the above-mentioned disadvantages, provide a novel work hand device that can stably grip a workpiece of any shape, and is suitable for a robot device or the like.

<Configuration and Effects of the Invention> In order to achieve the above object, the present invention includes a pneumatic shutter that expands and contracts by air supply and exhaust to open and close the opening surface of the hood, at the opening of the suction hood connected to the air intake source. It consists of .

According to the above configuration, in the present invention, after the suction source is operated to suck the workpiece into the hood, the pneumatic shutter is expanded to close the opening surface of the hood and hold the workpiece. On the other hand, there is no risk of damage such as gripping or falling off, and this is particularly effective for hand processing of lightweight workpieces.

<Description of Embodiments> The drawings show an example of use in which a work hand device according to the present invention is attached to the tip of an arm l of a robot device or the like.

The work hand device of the present invention includes a work suction hood 2 whose lower surface is open, and a pneumatic shutter 3 disposed at the opening of the hood 2. The hood 2 has a cushioning material 21 pasted on its inner surface and an intake port 22 on the bottom wall,
It is connected to an air intake device (not shown) via an air supply pipe 23, and the workpiece corresponding to the hood opening surface is sucked into the interior by the air intake operation.

The pneumatic shutter 3 is constructed by attaching a continuous annular band-shaped air bag 31 to the opening of the hood 2, and a concentric bellows part 32 is formed on the soil wall and lower wall of the air bag 31.
A ventilation hole 33 is provided on the wall of the hood 2, corresponding to the internal air chamber.
A supply and exhaust system (
(not shown), and the shutter 3 expands and contracts at the hood opening surface to open and close the hood by operating the air supply and exhaust system. The shutter 3 is not limited to the illustrated example, but may be selectively implemented, such as by arranging bellows-type air bags at the front and rear, right and left opposing parts of the suction hood 2, and opening and closing by inflating and deflating each air bag.

An air bag 4 is formed on the outer circumferential surface of the suction hood 2 and supports the inner hole of the workpiece.

The air bag 4 is provided with a stretchable sheet along the outer peripheral surface of the hood 2, and the upper and lower edges of the sheet are each airtightly attached to the hood 2, so that the air bag 4 can be expanded and contracted between the hood and the sheet. Forming an air chamber 41, extending from the bottom wall of the hood to the peripheral wall,
A ventilation hole 42 opened in the air chamber is provided, and its base end is connected to a supply/exhaust source. By injecting pressurized air into the air chamber 41, the air bag 4 expands and stretches against the inner hole of the workpiece. I support it.

Note that the cushioning material 21 inside the hood may have the same structure as the air bag 4 on the outer periphery. In this case, the air bag is inflated according to the workpiece, and play of the workpiece 5 within the hood 2 can be restricted.

In the present invention, as described above, the pneumatic shutter 3 that expands and contracts is provided at the opening of the suction hood 2 to suck in and close the workpiece, so that workpieces of arbitrary shapes can be processed.

Moreover, since the shutter 3 is an air bag, there is no risk of damaging the work even though it comes into contact with the work, and it exhibits an excellent effect in hand processing of lightweight work.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an example of a work hand device according to the present invention, and FIG. 2 is a sectional view taken along the line U-TR in FIG. 2...Suction hood 3...Pneumatic shutter patent application Person: Cubic Electric Machinery Co., Ltd./Ko-moisture-moisture-moon-fold-work 1:h1 excess L indicator θLf' Line diagram - 7'F2 box o'l group knee l ten bamboo? H3ko219. Biting 2-do 39. Sha1ri

Claims (1)

[Claims] A work hand device comprising a pneumatic shutter installed at the opening of a work suction hood to open and close the hood opening surface using air supply and exhaust.