JP5881476B2 - Parts tray - Google Patents

Description

  The present invention relates to a component tray that aligns components placed in a tray by receiving vibration in a horizontal direction.

  Parts trays that are prepared in production equipment and delivered to manufacturing machines have been studied as an important manufacturing elemental technology, and many practical applications have been made. For example, in the component tray 100 shown in FIG. 11A, an inclined surface 101 having a V-shaped bottom surface in the tray is provided. Then, as shown in FIG. 11 (b), after the parts (elongated parts) 2 are placed in a non-aligned manner in the tray, the parts tray 100 is placed in the horizontal direction (usually a groove on the bottom surface in the tray) using a vibration device. Reciprocate in a direction perpendicular to the direction). Thereby, as shown in FIG.11 (c), the said component 2 can be aligned along a groove direction.

As shown in FIG. 12, the alignment of the components 2 is caused by applying a moment so that the inclined surface 101 of the component tray 100 that is reciprocating moves toward the groove in the component 2.
However, it is difficult to align all the parts 2 in the tray, and as shown in FIG. 13B, some of the parts 2 are aligned with the ends of the parts 2 (aligned parts 2a) that have been aligned and the tray. There is a case where it becomes impossible to align by being caught in a gap portion with the inner wall surface. Hereinafter, the cause of occurrence of such non-aligned parts 2b will be described in more detail.

When the component tray 100 is reciprocated, acceleration / deceleration is applied to the component tray 100 and the component 2 in the tray, but the component 2 in the tray moves differently from the component tray 100 due to inertia. As a result, as shown in FIG. 12A, force is applied from the inclined surface 101 of the component tray 100 at the end of the component 2. In addition, other forces such as gravity are applied to the component 2.
Here, these resultant vectors are F, and the XYZ direction components of the resultant vector F are (Fx, Fy, Fz). In addition, as shown in FIG. 12, in the horizontal plane (XY plane) of the component tray 100, the angle formed by the groove direction (Y axis) and the component is Φ, and the moment applied to the component 2 is M. Further, the total length of the component 2 is assumed to be l.

In this case, if the frictional force is ignored, there is no component in the Fy direction among the components of the resultant vector F, so that Fy = 0, and Fz does not contribute to the moment M. Therefore, the moment M can be expressed by M = Fx · cosΦ · l.
In this case, as shown in FIG. 12B, in the vicinity of Φ≈90 °, M≈0. That is, when the component 2 is oriented in a direction substantially perpendicular to the groove direction, the moment M for alignment becomes small.

That is, as shown in FIG. 13A, the parts 2 immediately after being put into the tray are not aligned. Therefore, when the parts tray 100 is reciprocated in this state, the parts 2 to which a large moment M is applied. And a component 2 to which a small moment M is applied are mixed. As a result, the parts 2 in the vicinity of Φ≈0 are immediately aligned, and the parts 2 in the vicinity of Φ≈90 ° take time to align, so the state shown in FIG. 13B (many parts 2 Is assumed to be in a state in which the alignment has been completed but some of the components 2 have not yet been completed). Then, there may be a case where the part 2 that has not been completely aligned is caught between the part A (between the end of the aligned part 2a and the inner wall surface of the tray).
As shown in FIG. 13 (c), the non-aligned part 2b sandwiched between the reference signs A is not affected by the drag Np from the overlapping aligned part 2a or the inner wall surface of the tray. The alignment is hindered by the drag Nw. Therefore, it is difficult to align all the parts 2 and the non-aligned parts 2b remain. In this case, it is necessary to remove the non-aligned part 2b by manual work or using a robot, which is complicated.

  On the other hand, a technique that enables alignment of the above components is known (see, for example, Patent Documents 1 and 2). In the aligning device disclosed in Patent Document 1, non-aligned parts housed in a supply base are vibrated by a vibration source box, aligned through an inclined transfer surface having a guide plate, and a hole is provided at the bottom. It is configured to send to the trough. Thereby, the parts can be aligned and sent to the trough, and all the parts in the trough can be aligned. In addition, the parts feeder disclosed in Patent Document 2 is configured to monitor the direction of a component housed in a component holder by an image device and vibrate it with an impact device so as to align with a desired direction.

JP-A-9-202424 Japanese Patent No. 3172494

  As described above, in the conventional component tray, in the process of aligning the components in the tray, the components that have not been aligned are sandwiched between the end portions of the aligned components and the inner wall surface of the tray, thereby preventing alignment. There was a problem that it would end up. On the other hand, Patent Documents 1 and 2 disclose an apparatus that solves the above problem, but there is a problem that the apparatus is large and has a complicated configuration.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a component tray capable of aligning components placed in the tray with a simple configuration.

The component tray according to the present invention is provided on the bottom surface in the tray, and includes at least one pair of inclined surfaces that form a concave portion facing each other, and a hole provided in at least one end of the groove of the concave portion . Due to the difference between the inner dimension in the groove direction and the total length of the part, there is at least a part diameter or a part width length between the end part of the part aligned along the groove direction and the inner wall surface of the tray on one end side. A gap is formed, and a component sandwiched between the gaps receives vibration applied in a direction perpendicular to the groove direction, descends the inclined surface, and is discharged to the outside through the hole .

  According to the present invention, since it is configured as described above, it is possible to align the parts put in the tray with a simple configuration.

It is a perspective view which shows the structure of the component tray which concerns on Embodiment 1 of this invention. It is a top view which shows the component tray which concerns on Embodiment 1 of this invention, and the dimension of components. It is a perspective view explaining the dimension of the hole in Embodiment 1 of this invention. It is a figure explaining the dimension of the width direction of the hole in Embodiment 1 of this invention, (a) Side sectional drawing, (b) It is an expanded sectional side view. It is a perspective view which shows discharge | emission of the non-aligned components by the components tray which concerns on Embodiment 2 of this invention. It is a perspective view which shows the structure of the component tray which concerns on Embodiment 2 of this invention. It is a perspective view which shows another structure of the component tray which concerns on Embodiment 2 of this invention. It is a perspective view which shows the structure of the component tray which concerns on Embodiment 3 of this invention. It is a perspective view which shows another structure of the components tray which concerns on Embodiment 3 of this invention. It is a perspective view which shows the structure of the component tray which concerns on Embodiment 4 of this invention. It is a perspective view which shows the structure and operation | movement of the conventional component tray, (a) It is a figure which shows the structure of a component tray, (b) It is a figure which shows the state immediately after component introduction, (c) Parts alignment is performed. FIG. It is a top view explaining the component alignment principle by the conventional component tray, (a) It is a figure explaining the moment added to a component, (b) It is a figure which shows the components which are the direction of (phi) ≒ 90 degree vicinity. is there. It is a figure explaining the arrangement | positioning inhibition of the non-alignment components by the alignment components in the conventional component tray, (a) It is a top view which shows the state immediately after component introduction, (b) The upper surface which shows the state which performed component alignment It is a figure, (c) The top view and side view which show the alignment inhibition state of the non-alignment part by an alignment part.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a perspective view showing the configuration of a component tray 1 according to Embodiment 1 of the present invention.
The component tray 1 aligns the components 2 in the tray by reciprocating by being vibrated in the horizontal direction by a vibration device (not shown) after the components 2 are placed in a non-aligned manner in the tray. It is. In the following description, a cylindrical elongated part as shown in the figure is used as the part 2 to be put into the part tray 1.

As shown in FIG. 1, the component tray 1 is configured in a box shape having an opening on the upper surface. The bottom surface of the tray is provided with at least one set of inclined surfaces 11 that form concave portions by facing each other and align the components 2 that are not aligned in the tray. In FIG. 1, a pair of inclined surfaces 11 constituting a V-shaped bottom surface are provided to face each other.
In addition, in the process of aligning the component 2 by the component tray 1, the both ends of the groove on the bottom surface in the tray are sandwiched between the end of the aligned component 2 (aligned component 2a) and the inner wall surface 13 of the tray. A hole 12 is provided for discharging the component 2 (non-aligned component 2b) that has not been aligned yet to the outside of the tray. The holes 12 may be provided only at one end of the groove. However, when the holes 12 are provided at both ends, the discharge efficiency of the non-aligned component 2b is increased.

Next, the dimension of the hole 12 provided in the bottom face in the tray will be described with reference to FIGS. 2, the inner dimension in the longitudinal direction of the bottom surface in the tray (the groove direction in the bottom surface in the tray) is L, and the total length of the component 2 is l.
First, the thickness dimension D in the short direction of the hole 12 shown in FIG. 3 (the groove direction of the bottom surface in the tray) will be described.
As shown in FIG. 2, in order to store the component 2 in the tray, it is necessary to satisfy the relationship of L ≧ 1. In general, since the design is performed with L> l in consideration of the dimensional tolerance of the component 2, the gap between the end of the aligned component 2a and the tray inner wall surface 13 is Δ = L−l> 0 at the maximum. .
It is desirable that the non-aligned component 2b can be discharged in the entire range of the gap. Therefore, it is desirable to design the thickness dimension D of the hole 12 so as to satisfy D> Δ.

Next, the width dimension W in the longitudinal direction of the hole 12 shown in FIG. 3 (direction perpendicular to the groove direction of the bottom surface in the tray) will be described.
As shown in FIG. 4, the non-alignment component 2b sandwiched between the end of the alignment component 2a and the inner wall surface 13 of the tray slides downward along the inclined surface 11 on the inner bottom surface of the tray and passes through the hole 12 to the tray. Discharged outside. For this reason, the width dimension W of the hole 12 is such that the virtual surface obtained by extending one inclined surface 11 (right inclined surface 11 in FIG. 4) and the hole 12 on the other inclined surface 11 (left inclined surface 11 in FIG. 4) side. It is desirable to design so that the normal distance in the virtual plane with the lower end of the part is larger than the diameter of the component 2.

  Specifically, when the inclination angle of the inclined surface 11 is θ and the diameter of the component 2 is d, the component tray 1 of the component 2 that slides along one inclined surface 11 as shown in FIG. The width W1 in the horizontal plane is W1 = (d / sin θ). Further, a thickness h exists between the bottom of the inner bottom surface of the tray (the groove on the V-shaped bottom surface) and the outer bottom surface of the tray. The width W2 in the horizontal plane of the component tray 1 required by the thickness h is (h / tan θ). The same applies to the width W1 due to the component 2 sliding along the other inclined surface 11 and the width W2 due to the thickness h. Therefore, it is desirable that the width dimension W of the hole 12 is designed to satisfy W> 2 (W1 + W2) = 2 ((d / sin θ) + (h / tan θ)).

Next, the alignment operation of the components 2 by the component tray 1 configured as described above will be described.
First, as in the prior art, after the components 2 are placed in the component tray 1 in a non-aligned manner, the component tray 1 is caused to reciprocate by being vibrated in the horizontal direction by a vibration device (not shown). Do. At this time, normally, vibration is applied in a direction perpendicular to the groove direction on the bottom surface of the tray, and reciprocation is performed.
Since the inner bottom surface of the tray is V-shaped, as shown in FIG. 12, moments due to forces including gravity and vibration are applied to both ends of the component 2 in the tray. Align along the groove direction. Thereby, although many parts 2 can complete alignment, some parts 2 may be pinched | interposed between the edge part of the alignment components 2a, and the tray inner wall surface 13, and may become unable to align.

  However, as shown in FIG. 5, the sandwiched non-aligned component 2b is discharged out of the tray through holes 12 provided at both ends of the groove on the bottom surface inside the tray. Therefore, only the aligned component 2a remains in the component tray 1. Note that the component 2 discharged to the outside of the tray is collected by, for example, a tray (not shown) provided below the component tray 1 and is again put into the component tray 1.

  As described above, according to the first embodiment, the non-aligned component 2b sandwiched between the end of the aligned component 2a and the inner wall surface 13 of the tray is disposed outside the tray at least at one end of the groove on the V-shaped bottom surface. Since the holes 12 for discharging are provided, the non-aligned parts 2b can be removed from the tray in the process of aligning the parts 2, and the parts 2 placed in the tray can be aligned with a simple structure. Is possible.

Embodiment 2. FIG.
In the first embodiment, as shown in FIG. 1, the case where the inclined surface 11 having an inclination only in the direction perpendicular to the groove direction of the bottom surface in the tray is shown. On the other hand, in the second embodiment, in addition to the above, a case where an inclined surface 11b having an inclination in the groove direction is provided is shown.
6 and 7 are perspective views showing the structure of a component tray 1 according to Embodiment 2 of the present invention. The component tray 1 according to the second embodiment shown in FIGS. 6 and 7 has the holes 12 provided at both ends of the groove by changing the inclined surface 11 of the component tray 1 according to the first embodiment shown in FIG. 1 to the inclined surface 11b. Is changed to be provided only on one side. Other configurations are the same, and the same reference numerals are given and description thereof is omitted.

The inclined surface 11b is a set of opposing inclined surfaces that constitute a V-shaped bottom surface, and is also inclined in the groove direction of the bottom surface in the tray.
The hole 12 is provided only at one end of the groove. Here, in FIG. 6, the hole 12 is provided only at the upper end of the groove, and in FIG. 7, the hole 12 is provided only at the lower end of the groove.

Next, the alignment operation of the components 2 by the component tray 1 configured as described above will be described.
First, as in the prior art, after the components 2 are placed in the component tray 1 in a non-aligned manner, the component tray 1 is caused to reciprocate by being vibrated in the horizontal direction by a vibration device (not shown). Do. At this time, in the case of the configuration of FIG. 6, it is assumed that the inclined surface 11 b constituting the V-shaped bottom surface is also inclined in the groove direction, and the alignment component 2 a actively approaches the lower side of the groove. Yes. In this case, the non-aligned part 2b sandwiched between the end of the aligned part 2a and the inner wall surface 13 of the tray is gathered upward. Therefore, the non-aligned component 2b is discharged out of the tray through the hole 12 provided at the upper end of the groove.
On the other hand, in the case of the configuration of FIG. 7, it is assumed that the inclined surface 11 b constituting the V-shaped bottom surface is inclined in the groove direction, and the non-aligned component 2 b is positively moved downward in the groove direction. Yes. Therefore, the non-aligned component 2b is discharged out of the tray through the hole 12 provided at the lower end of the groove.

  As described above, according to the second embodiment, the inclined surface 11b that forms the V-shaped bottom surface and is inclined also in the groove direction on the bottom surface of the tray is provided, and the hole 12 is formed only on one of both ends of the groove. Even if it is configured to provide, the same effect as in the first embodiment can be obtained.

  In the second embodiment, the case where the inclined surface 11b having an inclination in the groove direction on the bottom surface in the tray is provided, but the present invention is not limited to this. For example, the component tray 1 itself according to the first embodiment is provided. Can be made to be in the same state by being inclined in the groove direction on the inner bottom surface of the tray, and the same effect can be obtained.

Embodiment 3 FIG.
In Embodiment 1, it showed about the case where the inclined surface 11 which comprises a V-shaped bottom face was provided. On the other hand, Embodiment 2 shows a case where an inclined surface 11c constituting a U-shaped bottom surface is provided.
FIG. 8 is a side sectional view showing the structure of the component tray 1 according to Embodiment 3 of the present invention. The component tray 1 according to Embodiment 3 shown in FIG. 8 is obtained by changing the inclined surface 11 of the component tray 1 according to Embodiment 1 shown in FIG. 1 to an inclined surface 11c. Other configurations are the same, and the same reference numerals are given and description thereof is omitted.

  In the case of a U-shaped bottom surface as shown in FIG. 8, the non-aligned component 2b sandwiched between the end of the aligned component 2a and the tray inner wall surface 13 does not slide along the inclined surface 11c. Therefore, the width dimension W of the hole 12 is designed to be larger than, for example, the width between the positions where the inclination angle of each inclined surface 11 constituting the U-shaped bottom surface is maximum. Further, as shown in FIG. 9, only the bottom portion of the U-shaped bottom surface may be V-shaped and set to the width dimension W shown in the first embodiment.

8 and 9, even in the case of the component tray 1 having a U-shaped bottom, in the process of aligning the components 2 as in the component tray 1 according to the first embodiment, the end portions of the aligned components 2a And the non-aligned part 2b sandwiched between the tray inner wall surface 13 can be discharged out of the tray through the hole 12.
However, at the U-shaped bottom surface, the inclination angle increases from the groove toward the direction perpendicular to the groove direction. Therefore, compared to the V-shaped bottom surface, the moment applied to the component 2 tends to be weaker at the outer portion of the tray inner bottom surface.

  As described above, according to the third embodiment, even if the inclined surface 11c constituting the U-shaped bottom surface is provided, the same effect as in the first embodiment can be obtained.

Embodiment 4 FIG.
In the first embodiment, the inclined surface 11 constituting the V-shaped bottom surface is provided, and in the third embodiment, the inclined surface 11c constituting the U-shaped bottom surface is provided. On the other hand, the fourth embodiment shows a case where two sets of opposing inclined surfaces 11d constituting the W-shaped bottom surface are provided.
FIG. 10 is a side sectional view showing the structure of the component tray 1 according to Embodiment 4 of the present invention. The component tray 1 according to the fourth embodiment shown in FIG. 10 is obtained by changing the inclined surface 11 of the component tray 1 according to the first embodiment shown in FIG. 1 to an inclined surface 11d. Other configurations are the same, and the same reference numerals are given and description thereof is omitted.

  In the case of a W-shaped bottom as shown in FIG. 10, two grooves are formed. And in each groove | channel, the hole 12 is provided in at least one among the both ends. Further, the dimensions of the hole 12 at that time are as shown in the first embodiment, and the description thereof is omitted.

  Even in the case of the component tray 1 having a W-shaped bottom as shown in FIG. 10, as in the case of the component tray 1 according to the first embodiment, in the process of aligning the components 2, The non-aligned component 2b sandwiched between the inner wall surface 13 can be discharged out of the tray through the hole 12. Moreover, since alignment can be performed using two grooves, it can contribute to improvement of production efficiency.

  As described above, according to the fourth embodiment, even if the inclined surface 11d constituting the W-shaped bottom surface is provided, the same effect as in the first embodiment can be obtained.

  In the third and fourth embodiments, the case where the inclined surfaces 11c and 11d that are inclined only in the direction perpendicular to the groove direction on the bottom surface in the tray is shown, but in addition to the above, as in the second embodiment. Further, the groove direction may be inclined. Further, the component tray 1 itself may be installed inclined in the groove direction. In this case, the hole 12 is provided only at one end of the groove.

In the first to fourth embodiments, the case where a cylindrical elongated part as shown in the figure is used as the part 2 is shown, but the present invention is not limited to this, and a prismatic elongated part or a part of the part 2 is projected. An elongated part, a screw, or the like may be used and can be similarly applied.
In this case, at least the width W of the hole 12 in the component tray 1 having a V-shaped bottom portion is defined by a virtual surface obtained by extending one inclined surface 11 to 11d and a hole on the other inclined surface 11 to 11d side. The normal distance in the virtual plane with the lower end of 12 is the width of the part 2 (width of a prismatic elongated part, the width including the protruding part of the elongated part having protrusions) or the diameter (diameter of the screw head, etc.) It is desirable to design larger.

  Further, within the scope of the present invention, the invention of the present application can be freely combined with each embodiment, modified with any component in each embodiment, or omitted with any component in each embodiment. .

DESCRIPTION OF SYMBOLS 1 Component tray 2 Component 2a Alignment component 2b Non-alignment component 11, 11b-11d Inclined surface 12 Hole 13 Tray inner wall surface

Claims (9)

In the component tray that aligns the components thrown into the tray by receiving vibration in the horizontal direction,
At least one set of inclined surfaces which are provided on the bottom surface in the tray and which form a concave portion facing each other;
A hole provided in at least one end of the groove of the recess ,
Due to the difference between the inner dimension of the bottom surface of the tray in the groove direction and the total length of the component , at least the diameter of the component is between the end of the component aligned along the groove direction and the inner wall surface of the tray on the one end side. Or a gap having a width of the part is formed,
The component tray, wherein the component sandwiched between the gaps receives the vibration applied in a direction perpendicular to the groove direction, descends the inclined surface, and is discharged to the outside through the hole . The inclined surface has an inclination also in the groove direction,
The component tray according to claim 1, wherein the hole is provided at one end of the groove. It is arranged so as to incline in the groove direction,
The component tray according to claim 1, wherein the hole is provided at one end of the groove. The component tray according to any one of claims 1 to 3, wherein at least a bottom portion of the concave portion is V-shaped. The component tray according to any one of claims 1 to 3, wherein the concave portion is W-shaped. The dimension of the hole in the direction perpendicular to the groove direction is such that the normal distance in the virtual surface between the virtual surface obtained by extending one of the inclined surfaces and the lower end of the hole on the other inclined surface side is the part. The component tray according to claim 4 or 5, wherein the component tray is set to be larger than the diameter or width. The component tray according to any one of claims 1 to 3, wherein the concave portion is U-shaped. 8. The component tray according to claim 7, wherein a dimension of the hole in a direction perpendicular to the groove direction is set to be larger than a width between positions at which the inclined angles of the opposing inclined surfaces are maximum. The dimension in the groove direction of the hole is set to be larger than the difference between the inner dimension in the groove direction of the inner bottom surface of the tray and the total length of the component. Item tray according to item 1.

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