JPH0724764A - Parts feeder - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a component supply device used in an assembling process, etc., so that even a component having a protrusion on a low surface can be always placed in a horizontal state on a mounting surface. It is configured to automatically change the substantial shape of the placement surface. [Structure] A plurality of block bodies 10 each independently movable by a motor 17 are arranged in a matrix to form a mounting table, and components to be supplied mounted on the mounting table are picked up from above by an imaging device 18 The image is captured and compared with the reference data prepared in advance to determine the type of the component. Based on the determination, the motor 17 is driven to selectively move the block body 10 up and down to change the mounting surface of the mounting table according to the low surface shape of the mounted component.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supplying device for supplying assembled components in a product assembling process, etc. (EN) Provided is a component supply device capable of performing correction so that a normal state is achieved.

[0002]

2. Description of the Related Art FIG. 3 shows an example of a conventional automatic assembling apparatus, in which an image pickup device 3 is provided with an assembly component 2 which is conveyed by a conveyor, a vibration shooter or the like and placed on a component mounting table 1.
And the position and orientation on the mounting table 1 are discriminated, the arm 5 provided with the chuck 4 is moved, and the chuck 4 clamps the component 2 to a predetermined position. Transport to.

At this time, if the orientation of the component 2 is different, the chuck 4 is rotated so that the component 2 can be sandwiched with the component 2 always facing in a fixed direction. It is configured.

[0004]

However, as shown in FIG. 4, for the component 2 which has a convex portion on the bottom surface and can be mounted only in a state in which it is inclined on a plane, the chuck 4 is changed according to its inclination angle. It is necessary to incline and hold it, which makes the structure of the arm 5 complicated. It is also possible to use a component supply table 1 whose surface shape matches the shape of the bottom surface of the component 2 so that the component 2 is always placed horizontally. It is necessary to change the mounting table every time the shape of the bottom surface changes, and this is not suitable for sequentially mounting parts of various shapes.

In order to solve the above problems, the present invention automatically changes the substantial shape of the component mounting surface according to the component to be mounted so that the component 2 is always mounted horizontally. It is configured in.

[0006]

SUMMARY OF THE INVENTION The component supply apparatus of the present invention is to mount a plurality of blocks, each of which can move up and down independently, in a matrix form, and to supply the components mounted on the mount. It is composed of means for picking up an image of the component from above and detecting the type of the component, and means for selectively moving the block body up and down according to the detected type.

[0007]

According to the above structure, the block body is selectively moved up and down in accordance with the type of the component to be supplied placed on the mounting table, so that the surface of the mounting table substantially corresponds to the bottom surface of the component. The parts can always be arranged in a normal state, and there is no need to incline the chuck or change the mounting table according to the parts.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 10 is 5 to 10 m on a side.
It is a block body of m and has several to several tens of vertical and horizontal lines (7 in the embodiment).
The individual parts are arranged in a matrix to form a component mounting table. Each of these block bodies 10 is connected to a rotary cam 12 via an arm 11. The rotary cam 12 is connected to a motor 17 via a belt 13, spiral gears 14 and 15, and a speed reduction mechanism 16, respectively.

That is, by selectively rotating one of the motors 17, one of the block bodies 10 connected to the motor 17 is selectively moved up and down.

Reference numeral 18 denotes an image pickup device including a video camera or the like which images the parts placed on the mounting table together with the mounting table from above.

FIG. 2 is a block diagram showing a control system,
The image captured by the image capturing device 18 is the monitor receiver 1.
While being displayed on the screen 9, the image is input to the image processing circuit 20, converted into a digital signal suitable for comparison, and output to the comparison / determination circuit 21. The comparison / determination circuit 21 compares the data indicating various component shapes stored in the first data storage circuit 22 in advance, and if there is coincident data, the data signal A indicating the type of the component is placed. The data signal B indicating the position and the direction of the mounted component on the mounting table are respectively transferred to the motor drive circuit 23.

In the motor drive circuit 23, a predetermined motor 17 is selectively driven by a predetermined amount according to the transferred data signal A and data signal B, and only the block body 10 corresponding to the motor is predetermined. Move up and down by the given amount.

That is, in this motor drive circuit 23,
The block body 10 to be driven for each type of parts and the data from the second data storage circuit 24 to which the drive amount thereof is input are corrected according to the data signal B, so that the block body 10 is selectively selected. It drives and controls so that a component may always be in a defined horizontal state.

Further, the data signals A and B of the comparison / determination circuit 21 are sent to a chucking device and used for sandwiching parts.

[0016]

As described above, according to the present invention, even when parts having different shapes are sequentially conveyed, the parts can be automatically corrected so as to be in a predetermined horizontal direction on the mounting table, so that the parts are sandwiched. There is no need to drive the chuck diagonally,
The chuck device can be made simple.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a main part of an embodiment of a component supply device of the present invention.

FIG. 2 is a block diagram showing a control system of the same embodiment.

FIG. 3 is a side view showing a main part of an example of a conventional component supply device.

FIG. 4 is a side view showing a case where parts of different shapes are placed in the conventional example.

[Explanation of symbols]

 10 block body 11 arm 12 rotating cam 17 motor 18 imaging device

Claims (1)

[Claims] 1. A mounting table in which a plurality of block bodies that can be moved up and down independently of each other are arranged in a matrix, and a component to be supplied mounted on the mounting platform are imaged from above to determine the shape of the component. An image pickup means for outputting a corresponding image signal; a judging means for comparing the image signal with previously prepared reference data to judge the type of the component; and based on the judgment, the block body is selectively moved up and down. A component supply device having a moving means.