JPS5871044A - Material supplying device - Google Patents

Abstract

PURPOSE:To make it possible to successively take up a work at a prescribed position by arranging a stopper which makes contact with the work being transferred, on a work supporting block device for supporting the work and successively transferring it. CONSTITUTION:A plural set of guide stocks 3, 4 charging a work are arranged in a row through a work supporting block 2 while penetrating the upper plate 21 and the lower plate 22 of said supporting block, and on a position corresponding to a gap 23 between the upper plate 21 and the lower plate 22 of a base 8, a stopper 6 restricting the movement of the work 1 while making contact with the contact face 61 of the work 1 is provided. When the work 1 makes contact with the stopper 6, the supply of high pressure air is cut off via an air pressure control device 9, allowing the block 2 to be stopped and the work 1 to be successively taken up at the position of a work 1' located on the above described fixed position.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic processing machine or automatic assembly, and particularly to an improvement of a material feeding device for rigid workpieces.

Recently, in the production of electronic equipment and equipment◆, there has been an increase in the number of parts being processed or assembled using a-motion processing or automatic assembly machines (hereinafter referred to as automatic machines) in order to stabilize productivity and reduce costs. It's here. Among the material feeding devices of these automatic machines, a material feeding device using a magazine is usually used for feeding parts with relatively complex shapes that cannot be simply stacked. The following two examples are known as conventional material feeding devices using cough magazines. That is, in the first example, as shown in FIG. 1, a magazine b that can plant the workpieces a with high precision and at equal pitches is placed on a table C that can slide in the direction of the planting rows of the workpieces a. (The ball screw e driven by the ball screw e drives the ball screw e, and the workpiece a' positioned at a fixed point Q is ticked up by a feeding mechanism (not shown) to the automatic machine. In the second example, as shown in FIG. At the same time, on the other hand, on the back side of the table C, the workpieces a are placed in rows with a high precision pitch that is exactly equal to the planting pitch of the workpieces. Wedge grooves g are arranged in a row, and by inserting wedges h into the wedge grooves g from a predetermined position, accurate positioning of the table described in II is achieved, and after positioning, the workpiece a' located at the fixed point Q is Tick-up is carried out by a transportation mechanism to the automatic machine (not shown), and the pick-up, the feed 9j of the table C, and the operation of the wedge are alternately controlled.

However, in both cases, conventional material feeding devices for these magazines require advanced positioning, such as a combination of a high-voltage motor and a precision feed screw, or a combination of precisely indexed wedge grooves and wedges. This has the disadvantage that a mechanism and an associated control device are required, making the automatic machine expensive.

The present invention is aimed at improving a material feeding device for rigid workpieces, which was made to provide an inexpensive automatic machine. a work support block having a work support block, and a group of guide slots arranged in rows on the upper and lower plates for loading the work,
The workpiece support block includes means for transporting the workpiece support block in the direction in which the guide slots are arranged, and stoppers disposed at predetermined positions corresponding to the upper and lower plates of the workpiece support block in the direction in which the guide slots are arranged. The present invention is characterized in that the plurality of workpieces loaded into the guide slot group can be sequentially picked up at a contact position with the stopper.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 3 is a measurement surface view of a material feeding device according to an embodiment of the present invention, FIG. 4 is a partially sectional plan view, FIG. The figure is a perspective view of another embodiment of the material feeding device, in which 1 is a workpiece;
2 is a work support block equipped with guide slots 5) 3 and 4, 5 is a guide mechanism, 6 is a stopper, 7 is an air cylinder, 8 is a base, 9 is a pneumatic control device, and 10 is a rotating shaft. .

First, a material feeding device using a linear magazine, which is an embodiment of the present invention, will be explained with reference to FIGS. 3 and 4. FIG. In these figures, reference numeral 2 denotes a U-shaped wIA-shaped work support block (corresponding to a conventional magazine) consisting of an upper plate 21 and a lower plate 22 arranged at a predetermined distance. A plurality of sets of guide slots 3 and 4 are arranged along the length of the guide slots 21 and 22 to allow smooth loading and unloading of the workpiece 1.The workpiece support block 2 is placed on the base 8. It is slidably mounted under the guidance of a guide mechanism disposed thereon, for example, a plurality of pairs of guide rollers. Also, 7 is an air cylinder disposed on the base 8 in line with the right end surface of the workpiece support block 2; A push plate 72 is attached to the tip of the piston rod 71, and this bushing rod is abutted between the right end of the block, and the workpiece support block is controlled by controlling the air pressure and intermittent control of the high pressure air input to the equipment 9. 6 is provided at a predetermined position on the base 8 corresponding to the gap between the upper and lower plates 21 and 22. This is a stopper for suppressing the movement of the workpiece 1 by using the side surface on the air cylinder side as a contact surface 61.

Although not shown in the figure, the stopper is equipped with a sensor that detects the state of contact of the workpiece l with the stopper, and its detection power causes the air pressure control device 9 to shut off the supply of high-pressure air. I have to. Then, the workpiece 1', which has been progressively fed at a position where the transfer force against the workpiece support block 2 is temporarily suspended, that is, a position where the loaded workpiece l comes into contact with the contact surface Q, is transported by an automatic machine (not shown) 111J.
It is appropriate to tick up sequentially with II. As described above, the work is supplied by timing the output from the sensor (not shown) and controlling the feeding mechanism and air cylinder 7 of the automatic machine.

FIG. 5 shows each operation position of the material feeding device. B is the state of the first take-up position, C is the state of the intermediate take-up position 1, D is the state of the last take-up position tmk, and g is the empty work support block 2. F is the workpiece 1”
114 shows the state in which an empty work support block 2 is discharged and a new work support block loaded with a work is delivered, and the symbols of each part are the same as in FIGS. 3 and 114.

Next, a material feeding device using a rotary magazine according to another embodiment of the present invention will be described with reference to FIG.

The difference from the material feeding device using the linear magazine of this embodiment is that the work support block 2' has an upper plate 21' and a lower plate 22.
′ and ′ are a pair of flat disks connected at the center with a gap O′, and the guide slots 3′ and 4′ into which the work l is loaded are arranged radially in concentric circles of the flat disks. The guide 4j of the first embodiment is equipped with a base (not shown), and the center of the workpiece support block 2' is located on a base (not shown).
& is supported by a rotating shaft 10 corresponding to the horizontal 5, and the - rotating shaft 10
The workpiece support block 2' is driven in the direction of the arrow by an air motor or a torque motor (not shown) that performs a known rotational motion and corresponds to the air cylinder of the F11 first embodiment, which is provided in the first embodiment. Note that the function and control method of the stopper 6 are completely the same as in the previous embodiment.

In any of the embodiments of the material feeding device according to the present invention described above, loading is performed on the workpiece supporter, so that
There is no need to install a positioning mechanism like in the past, which naturally simplifies and lowers the cost of the material feeding device.Moreover, even if the workpiece is not placed in all guide slots, empty guide slots can be skipped. Since the transfer is performed by using the same method, it is also effective in improving the efficiency of automatic processing machines or automatic assembly machines.

[Brief explanation of the drawing]

FIGS. 1 and 2 are schematic diagrams showing the conventional configuration of a material feeding device, and FIGS. 3 and 4 are a side view and a partially sectional plan view of an embodiment of the material feeding device according to the present invention. FIG. 5 is an explanatory diagram of the operating state of the material feeding device, and FIG. 6 is a perspective view of the material feeding device according to another embodiment. In the figure, l is a workpiece, 2 is a workpiece support block, and 3 is a workpiece support block.
4 is a guide slot, 5 is a guide mechanism, 6 is a stop, 7 is an air cylinder, 8 is a base, 9 is a pneumatic control device, and 10 is a rotating shaft. Ku no U OLI L'-
m = (-1,

Claims (1)

[Claims] A material feeding device for rigid workpieces, a workpiece support block having upper and lower plates arranged at predetermined intervals of 11111, and a group of guide slots for loading the workpieces arranged in rows on the upper and lower plates. A means for transporting the workpiece support glock in the direction in which the guide slots are arranged, and a stopper disposed at a predetermined position corresponding to between the upper and lower plates of the workpiece support block in the direction in which the guide slots are arranged. A material feeding device characterized in that the plurality of works loaded in the guide slot group can be sequentially picked up at a position where they come into contact with the stopper.