JPH0826448A - Structure for mounting bowl on movable frame in vibrational parts feeder - Google Patents

Abstract

PURPOSE:To provide a structure for mounting a bowl on a movable frame in a vibrational parts feeder, which can fix even the bowl of the large-scaled vibrational parts feeder easily to the movable frame without needing complicated working processes. CONSTITUTION:A bottom part 60a of a bowl 60 is formed in the central part with an opening which is formed on the lower surface with a conical recess having the vertical angle smaller than that of the conical bottom part 60a. A bolt 71 is allowed to be inserted into a bolt inserting hole and screwed in a tapped hole 63b of a movable frame 63 so that the bowl 60 is fixed integrally to the movable frame 63 by tightening the bolt 71.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a bowl on a movable frame in a vibrating parts feeder.

[0002]

2. Description of the Related Art FIGS. 4 and 5 show a conventional mounting structure for a bowl on a movable frame. In the drawings, a vibrating parts feeder is shown at 50 as a whole. A spiral track 52 is formed on the inner peripheral wall surface of the bowl 51, and the discharge end is formed as a linear track 52a.
There is a case where this portion is processed separately from the bowl 51 and is fixed by, for example, bolts. The central portion of the bowl 51 is formed in a conical shape, and the cylindrical portion 54 is integrally formed in the central portion. The bolt 56 integrally fixed to the knob portion 53 made of synthetic resin is attached to the cylindrical portion 5
The bowl 51 is integrated with the movable frame 55 by being inserted into the movable frame 55 and screwed into a screw hole formed in the central portion of the movable frame 55.

Although such a bowl 51 is widely used for feeding small parts such as electronic parts, since the parts to be handled are small, it is small as a whole, for example, the outer shape is about 150 mm. Is. Although it is made of aluminum to reduce its weight, it is processed by lathe processing. Since it is lightweight and small, it can be processed with sufficient accuracy and efficiency by lathe processing.However, with a large size, such processing is difficult, so fixing the bowl to the movable frame is not possible with the above method. Absent.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and makes it easy to attach a large vibrating parts feeder to a movable frame even on a bowl, and to simplify processing for that purpose. It is an object of the present invention to provide a structure for attaching a bowl to a movable frame in a vibrating parts feeder capable of performing.

[0005]

[Means for Solving the Problems] The above object is to form a bolt insertion opening in the central portion of a bowl having a conical bottom portion and a spiral track formed on an inner peripheral wall surface, and to form a central portion of a lower movable frame. A screw hole is aligned with the bolt insertion opening, a conical recess having an apex angle smaller than the apex angle of the bottom of the conical bowl is formed on the lower surface, and the bolt insertion hole is formed in the central portion. Apply the holding block to the central portion of the bottom of the bowl, insert the bolt into the bolt insertion hole of the holding block and the bolt insertion opening of the bowl, and screw it into the screw hole of the movable frame to tighten it. Thus, the mounting structure of the bowl to the movable frame in the vibrating parts feeder is characterized in that the bowl is fixed to the movable frame.

[0006]

With respect to the bowl, a bolt insertion opening is simply formed in the central portion, and the spiral track is formed by a conventional processing method, for example, winding a band material along an inner peripheral wall surface and welding.
Alternatively, it can be processed by casting. In addition, a recess with an apex angle smaller than the conical apex angle of the bottom of the bowl is formed on the lower surface of the block, and a through hole is bored in the center of the recess to abut the center of the bowl. The bowl is integrated with the movable frame simply by inserting a bolt into the screw hole, screwing it into the screw hole of the lower movable frame, and tightening it. As described above, the mounting operation is simple, and since the mounting method can be applied to the bowl obtained by the can manufacturing process, the production cost can be greatly reduced.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A mounting structure of a bowl on a movable frame in a vibrating parts feeder according to an embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show the whole of a vibrating parts feeder assembling apparatus according to an embodiment of the present invention, which is designated by 1 and is arranged on a common base plate 2 according to the present embodiment. 3 and the linear vibration feeder 4 are fixed.
As is known, the vibrating parts feeder 3 has a spiral track 6 formed in a bowl 5, which is connected to a torsional vibration driving unit 7. However, according to the present embodiment, it is not shown. In both cases, the fixing plate 8 is fixed via a drive unit and a vibration-proof rubber. A height adjustment positioning adjustment mechanism 9 is provided between this and the base plate 2.

The linear vibrating feeder 4 is also constructed in the same manner, but a leaf spring mounting block 11 is fixed to the bottom wall surface of the linear trough 10, which is a pair of front and rear leaf springs 12.
It is connected to the base block 16 by 13. It is assumed that the base block 16 is positioned and fixed to the base plate 2 by a plurality of bolts 17 as in the conventional case.

As shown in FIG. 1, the fixing plate 8 has a circular shape as a whole, but the outer peripheral surface of the fixing plate 8 is formed with ears 8a protruding horizontally every 120 degrees, and screw holes 20 are formed in the ears 8a. ing. As shown in FIG. 3, the height adjusting bolt 21
A shaft portion 21b of the shaft 21b is screwed to the shaft portion 21b, and the lower end portion of the shaft 21b is in contact with the base plate 2. A through hole 21c is formed along the axis of the height adjusting bolt 21, and the shaft portion 22b of the fixing bolt 22 is inserted into the through hole 21c, and the lower end portion of the through hole 21c is positioned on the base plate 2. It is fastened by being screwed into the screw hole 22a. The linear discharge end 6a of the truck 6 of the vibrating parts feeder is arranged in the trough 10 of the linear vibrating feeder 4 with a gap S therebetween.

The mounting structure of the bowl 60 in the vibrating parts feeder 3 according to the present invention to the movable frame will be described below.

In FIG. 4, a bowl 60 of this embodiment has a substantially cylindrical shape, and a spiral track 61 is wound in a constant manner without expanding or contracting in the radial direction. An attachment member 62 on the ring is welded and fixed to the bowl 60 at the outer peripheral edge portion of the bottom wall portion. That is, in this embodiment, the bowl 60 and the annular mounting member 62 are made of a weldable member such as iron. On the outer surface of the bottom wall of the bowl 60, the cylindrical body 7
4 is welded and fixed, and a circular hole 6 for inserting the shaft portion 71a of the bolt 71 in the central portion of the conical bottom portion 60a.
0aa is formed. A screw hole 63b is formed in the center of the movable frame 63 so as to face it, and the bolt 71 is screwed and tightened into the screw hole 63b of the movable frame 63 with the bowl mounting member 70 interposed therebetween.
The bowl 60 is integrated with the movable frame 63 as shown in FIG. The upper end of the leaf spring 75 is fixed to the movable frame 63 by bolts at equal angular intervals, for example, at 90 degree intervals.

Further, according to this embodiment, the mounting member 62 is ring-shaped, but a pair of screw holes 62a are formed facing each other in the radial direction, and the machine screw 65 can be screwed into this. Has become. Further, the movable frame 63 has circular recesses 63a formed at the corners of the square so as to be aligned with the screw holes 62a.

The embodiment of the present invention is constructed as described above. Next, this operation will be described.

A mounting ring 62 is welded and fixed to the bottom wall portion of the bowl 60, and a shaft portion 65a of a machine screw 65 is screwed and tightened in the pair of screw holes 62a. This head 65b
In the present embodiment, four recesses 63a are formed in the movable frame 63 as shown in FIG. 6, but two recesses 63a facing each other in the radial direction are selected and engaged. Thereafter, the bowl mounting member 70 is applied to the bottom portion 60a of the bowl 60 as shown in FIG. 5, and the bolt 71 is attached to the through hole and the cylindrical body 7.
4 and the shaft portion 71a is screwed into the screw hole 63b of the movable frame 63 and tightened to tighten the bowl 60.
The bottom wall 60a of the is bent slightly downward (conical apex angle β '
Becomes β. ), Since the lower end of the cylindrical body 74 is separated from the movable frame 63 by a certain gap h as shown in FIG.
This becomes smaller and the tubular body 74 contacts the movable frame 63, and the bolt 71 is further tightened, so that the tubular body 74 presses the upper surface of the movable frame 63 to obtain a predetermined fixing force. At this time, since the mounting ring 62 is also pressed against the outer edge of the movable frame 63 with a predetermined strength, the bowl 60 is pressed and fixed to the movable frame 63 with a uniform force at the outer peripheral edge and the center of the bottom wall of the bowl 60. Can be done.

As described above, the head 65 of the machine screw 65
By engaging b with the recess 63a of the movable frame 63, the bowl 60 is accurately positioned with respect to the movable frame 63. However, as described above, in this embodiment, the torsional vibration drive unit is the fixed plate 8. Since it is accurately positioned and fixed to the base plate 2 by the positional relationship with the linear vibrating parts feeder 4, the discharge end of the bowl 60 is accurately placed in the trough of the linear vibrating feeder 4 with a predetermined gap. Can be provided. The head 65b of the screw 65
Since there is a certain degree of play between the recess 63a and the recess 63a, the positional relationship of the bowl 60 with respect to the linear vibration feeder can be finely adjusted within this range. Further, when the bowl 60 is rotated 90 degrees in the drawing and the linear vibration feeder is connected to the bowl 60, the recess 6 formed in the movable frame 63 is used.
Of the 3a, another pair of recesses 63a may be selected and the head portion 65b of the machine screw 65 may be engaged therewith.

FIG. 6 shows the mounting structure of the bowl to the movable frame in the vibrating parts feeder according to the second embodiment of the present invention. The parts corresponding to the above-mentioned embodiments are designated by the same reference numerals, Detailed description thereof will be omitted.

That is, in this embodiment, the mounting block 8
0 has a conical shape as a whole and has a bolt insertion hole 80a formed in the central portion thereof as in the first embodiment.
Further, the lower surface thereof has an apex angle α, which is smaller than the apex angle β of the central bottom portion 60a of the bowl, as in the first embodiment. Others are the same as those in the first embodiment, but the bolt 71 is inserted into the insertion hole 80a of the block 80, and the bolt 71 is tightened, so that the central portion of the bottom portion 60a is bent to be slightly flat. Is greater than or equal to a predetermined value, the lower end of the cylindrical body 74 contacts the movable frame 63. Other actions and effects are similar to those of the first embodiment.

Although the respective embodiments of the present invention have been described above, the present invention is not limited to these, and various modifications can be made based on the technical idea of the present invention.

For example, in the above embodiment, the positioning is performed by the machine screw 65 with respect to the movable frame 63 of the bowl 60. However, the positioning may be performed by other means, and in some cases, for example, by itself. If used, such positioning is unnecessary.

Further, in the above embodiment, the cylindrical body 74 is fixed by welding to the outer bottom wall surface of the bowl 60, but this is omitted, and the ring plate body 62 is further welded to the outer edge of the bowl 60. Although this is also omitted, the outer edge of the bowl 60 is directly brought into contact with the outer edge of the movable frame 63,
The bowl 60 may be fixed to the movable frame 63 by inserting the bolt 71 into the block 70 and tightening it.

[0022]

As described above, according to the structure for mounting the bowl on the movable frame in the vibrating parts feeder of the present invention, even for a large bowl, the movable frame can be securely and easily fixed to the movable frame. You can

[Brief description of drawings]

FIG. 1 is a plan view of a vibrating parts feeder assembling apparatus to which an embodiment of the present invention is applied.

FIG. 2 is a side view of the same.

FIG. 3 is a partially enlarged sectional view of a height adjusting mechanism in the same device.

FIG. 4 is a sectional view showing a mounting structure of a bowl on a movable frame in a vibrating parts feeder according to a first embodiment of the present invention.

FIG. 5 is a sectional view showing a mounting operation of the mounting structure.

FIG. 6 is an enlarged cross-sectional view showing a main part of a structure for attaching a bowl to a movable frame in a vibrating parts feeder according to a second embodiment of the present invention.

FIG. 7 is a plan view showing a mounting structure of a bowl on a movable frame in a conventional vibration parts feeder.

FIG. 8 is a partially cutaway side view of the same.

[Explanation of symbols]

 60 bowl 63 movable frame 70 mounting block 71 bolt 63b screw hole

Claims (3)

[Claims] 1. A bolt insertion opening is formed in a central portion of a bowl having a conical bottom portion and a spiral track formed on an inner peripheral wall surface, and the bolt insertion opening is aligned with the central portion of a lower movable frame. Screw holes to form a conical recess having a vertical angle smaller than the vertical angle of the bottom of the conical bowl, and a pressing block having a bolt insertion hole in the center of the bottom of the bowl. The bowl is attached to the central portion, the bolt is inserted into the bolt insertion hole of the holding block and the bolt insertion opening of the bowl, and the bolt is screwed into the screw hole of the movable frame to tighten the bowl to the movable frame. A structure for mounting a bowl on a movable frame in a vibrating parts feeder, which is characterized in that it is fixed. 2. A cylindrical body is fixed to an outer bottom wall surface of a central portion of the bowl in alignment with the bolt insertion opening, and the bolt is also inserted into the cylindrical body, and when the bolt has a predetermined tightening force or more. The bowl of the vibrating parts feeder according to claim 1, wherein the lower end surface of the cylindrical body is in contact with the outer peripheral edge portion of the screw hole of the movable frame, but is separated from the upper surface of the movable frame by a tightening force less than that. Mounting structure to the movable frame. 3. A lower end surface of the cylindrical body before the bolt is tightened by concentrically fixing a ring-shaped plate to the outer peripheral edge of the bottom of the bowl and abutting the upper surface of the movable frame. Is separated from the upper surface of the movable frame, but if the bolt is tightened with the predetermined tightening force or more,
The mounting structure of the bowl to the movable frame in the vibrating parts feeder according to claim 2, wherein a lower end surface of the cylindrical body abuts an outer peripheral edge portion of a screw hole of the movable frame.