JPS59153725A - Circular work supply device - Google Patents

Abstract

PURPOSE:To reduce a storehouse to a compact size and to function as a guide plate for locating a work at the time of pushing out and turning the work or in an obverse-reverse discriminating device by providing a work pushing member comprising a rotary fan-shaped plate having a V-shaped surface at the contact surface thereof with the work. CONSTITUTION:A fan-shaped plate 21 of a pushing member 20 is turned by a cylinder to push a work W at the V-shaped surface thereof and inserted the work in a fitting groove 32b of a detection drum 32 in a housing 30. At this time, the work W is pressed and supported by three points of the members 21, 32, so that the work is located with high accuracy. A photoelectric sensor 36 detects whether the work W is inside or outside, and when the work W is set correctly, the work is carried out to a chute by a push rod of a feed member. If the work W is reversed, the detection drum 32 is reversed in a 180-degree arc to turn the work W inside out.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a feeding device for annular works such as bearing cups and oil seals, which takes out annular works one by one from a storage, distinguishes the front and back sides, and supplies the annular works in a line. This is to ensure the positioning accuracy of the taken out workpiece.

Automatic assembly machines use parts feeders that feed assembly parts in a line.

In particular, annular parts such as bearing cups and oil seals (
An annular work supply device that takes out annular workpieces one by one from a storage, determines the outer part, and supplies the annular workpieces in a single line has a configuration as shown in FIG.

That is, on the top surface of the index table IT serving as the storage M, there is a cylinder l... on which a large number of works W... are stacked.
are placed upright at equal intervals. Workpiece removal position (1)
, K is the extrusion flat plate 3 of the extrusion member 2 that moves in a straight line.
The workpiece W at the lowest position is taken out by the front and back discriminator and transported to the front and back discrimination device.The workpiece W, whose front and back sides have been discriminated by the discrimination device, is reversed to the correct side and then transferred to the delivery member 4.
is carried out to chute 5 by In the above-mentioned work supply device, although the extrusion flat plate 3 of the extrusion member 2 that extracts the workpiece W from the storage M moves in a straight line, other cylindrical bodies 1 must be placed outside of this movement trajectory. , a recessed space with a wide angle θ is required, and the construction of a large index table IT (storage M) is required to keep a large number of cylinders 1 upright. Moreover, the positioning accuracy of the work W that is positioned by the front/back discrimination device D is also low.

The present invention has been made in view of the above-mentioned situation, and has a rotary fan plate configuration as a member for pushing out the workpieces in the cylinder of the storage room, and the contact surface with the workpieces is a figure 7 surface. In addition to reducing the size, we succeeded in making it function as a guide plate for extruding and rotating the workpiece and for positioning the workpiece in the front/back discrimination device.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The work supply device of the present invention will be briefly described below with reference to the drawings.

Figure 2.3 shows an external view of the annular workpiece feeding device ■.
The basic configuration is the same as that shown in Fig. 1, and the storage (magazine) M for the work W... consists of an index table IT and a cylinder 1 standing upright around the top surface of the index table IT. Work W... is piled up. According to the present invention, the lowest workpiece W stacked in the cylinder body 1 in the workpiece take-out device (:) is taken out by the fan plate 21 that rotates back and forth of the push-out member 20, and the workpiece W is taken out by the circular arc guide in the table IT. 1 installed on the left side of fan plate 21 while being guided by 22
The face 21α, 21aK is pressed and the 5th
The plate 21, which is positioned as shown in the figure, is attached to the upper end of a support shaft 23 as shown in FIG. A device for determining the front and back sides of a workpiece W entering and leaving a gap X having the thickness of one sheet is located at a workpiece detection position (II) K. That is, as shown in FIGS. 3 and 4, the housing 3 is opened on the side facing the workpiece removal position (+) Ic.
A cylindrical detection member 32 is inserted into the inner cavity 31 of the o, and a rack rod 34 that meshes with a pinion 33 at the tail end is connected to the cylinder 35.
When driven left and right by
180' reversal movement).

The detection device 32 is formed into a truncated cone shape so that its tip end surface 32α faces the single-shaped surfaces 21α and 21α provided on the fan plate 21, and the center portion thereof has a workpiece W as shown in FIGS.
A fitting groove 32b is cut out in a horizontal position for inserting the. 36 is a workpiece W that fits in 1 yen 132, 6
As shown in FIG. 4, the upper sides of the housing 30 and the detection member 32 are cut out to form a light beam path. That is, to determine the front and back sides of the workpiece W,
This is done depending on the presence or absence of reflected light from. Therefore, the workpiece W that fits into the insertion groove 32b of the detection member 32 requires highly accurate positioning, but according to the present invention, it is positioned at three points α as shown in FIG.

Since it is suppressed and supported by points b and c, highly accurate positioning is guaranteed. 40n is a flat press rod of the sending member 40, which is inserted into the fitting groove 32b from the left side to the right side by the drive of the cylinder 41, and the workpiece W is inserted into the right shoe) 50
It is configured to be transported to Natsu.

The work supply device (2) of the present invention is constructed as described above, and its operation will be explained below. Workpiece removal position +11
The lowest workpiece W of the cylindrical body 1 indexed at ffi (+) is extracted by the front/back discriminating device tD by the rotating operation of the fan plate 21 of the extrusion member 20, that is, the state shown in FIG. When the fan plate 21 located at
Detection 11i inside the housing 30 by pushing the workpiece W with α
Insert into the insertion groove 32b cut at j132.

At this time, the workpiece W has three points l b+ of members 21 and 32.
Is it intrusion because it is suppressed and supported by '? l! 3
2b with high precision. In the above state, the photoelectric sensor 36 detects the front and back sides of the workpiece W as shown in FIG.
is in the correct direction, the fan plate 21 rotates and retreats to the storage MIllI as shown in FIG.
At 0α, the workpiece W in the fitting groove 32.6 is carried out to the chute 50. On the other hand, when the photoelectric sensor 36 detects that the front and back of the workpiece W are reversed, the rack rod 34 is moved forward or backward by the operation of the cylinder 35, the detection member 32 is reversed by 180 degrees, and the upper and lower sides of the workpiece W are switched.

When the detection side 320 is inverted by 180°, the tips 1fi 32α and 32a of the detection body 32 slide into contact with the one-shaped surfaces 21α and 21a of the fan plate 21 that contact the front surface of the workpiece W. Therefore, the figure 7 surface 21+z+21c of the fan plate 21 is
The detection side 320 serves as a guide for the workpiece W and the detection end face 32 (Zl 32c) formed in a truncated cone when the workpiece is reversed by 180 degrees, and can prevent the workpiece W from slipping out of the insertion groove 32b when turning for detection. When the upper and lower sides are changed in the correct direction, the push rod 40 (Z) of the sending member 40 is used to push the workpiece W inside the fitting groove 32/ into the chute 5.
Export to 0. Thereafter, the same operation is repeated to supply the workpiece W inside the cylinder 1 to the chute 50.

The present invention is not limited to the above embodiment (design changes can be made within the gist of the invention. For example, the photoelectric processor 36 for determining the front and back sides of the workpiece W may be of a different type or the number may be increased. Further, the drive cylinder 24 for rotating the fan plate may also be driven by another drive method.

According to the present invention, a rotating fan plate is used as an extrusion member for extracting an annular workpiece in a cylindrical body standing upright on an index table of a storage, and the contact surface of this fan plate with the workpiece 1 is set at 7.
For the detection of the front/back discrimination device installed at the workpiece detection position, we have provided an insertion groove into which the extracted workpiece is inserted and positioned. Only a rotation space is required, the index table can be downsized and many cylinders can be stood upright, and the workpiece inside the detection cylinder is supported by pressure at three points: the figure 7 face of the fan plate and the deep part of the insertion groove. Because of this, workpiece positioning is performed with high precision when front and back discrimination is performed, and 18
When inverted by 0°, the 7-shaped surface of the fan plate exerts a unique guiding action, which has many effects such as preventing the accident of the workpiece escaping from the detection cylinder.

[Brief explanation of drawings]

FIG. 1 is a schematic plan view of a conventional workpiece supply device, FIG. 2 is a front view of the workpiece supply device of the present invention, FIG. 3 is a plan view, and FIG. 4 is a sectional view taken along line A-A in FIG. Figure 5.6 is a partially cutaway sectional view showing the operating state. M...Storage, IT...Index table, 1
... Cylindrical body, W ... Annular workpiece, 20 ... Extrusion member, 21 ... Fan plate, 21 + z, 21a ... 7-shaped surface, D
...Front and back discrimination device, 30...Housing, 32...
・For detection, 32α...tip surface, 32h...fitting flange,
36... Photoelectric sensor, 40... Sending member, 50...
・Chute, ■... Circular workpiece feeding device, (:)・
...Workpiece take-out position, (11)...Workpiece detection position. Applicant Ishu Cross Co., Ltd. Nissan Motor Co., Ltd. 0 γ 2 M? , b)) l jke;j audience 6 M

Claims (1)

[Claims] The extrusion member 20 for extracting the annular workpiece W in the cylindrical body 1 standing upright on the index table IT of the storage M has a rotating fan plate 21 structure, and the single-shaped face of the fan plate 21 is the contact surface with the annular workpiece W. 21α, and the detection cylinder 32 of the front/back discrimination device disposed at the workpiece detection position is provided with an insertion groove 326 for inserting and positioning the annular workpiece W extracted from the fan plate 21. feeding device.