JP2563009Y2 - Parts tray - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component tray, and more particularly to a tray structure which can be manufactured at low cost and can accurately position components of any shape.

[0002]

2. Description of the Related Art A conventional component tray accommodates a large number of components in an aligned state, is also used as a container for transport, or a positioning member for supplying components to a robot or the like during an assembly process. It is also used as These component trays are generally used in various factories and warehouses in various structures according to the shape and use of the components. As a structure of a component tray, as described in, for example, Japanese Utility Model Application Laid-Open No. 23313/1990, there is a component tray in which individual components are put into a plurality of component storage portions formed by partitioning the inside of a container into a mesh shape. . In addition, 63
As described in JP-141195, a hole for positioning is provided on the bottom surface of the container, and the components arranged on the bottom surface are positioned by a positioning jig fitted and fixed to the hole on the bottom surface. Some have been proposed.

[0003]

However, in order to efficiently store components in the above-mentioned conventional component tray, a tray matching the component shape must be used, and a separate tray is used every time a different component is used. Had to be made. In addition, when a component is fixed to a shape using a positioning jig, it is necessary to perform a positioning operation using a plurality of jigs, and there is a problem that the component storage efficiency is low. In addition, in order to increase the positioning accuracy of components, it is necessary to form the tray with a thick material with little distortion or expansion and contraction, which increases the manufacturing cost and increases the storage volume and weight of the components. ,
When handling a large number of components, there is also a problem that it is difficult to secure a storage space and to carry out a component transfer operation. Therefore, the present invention is to solve the above-described problem, and an object of the present invention is to provide a component tray that can efficiently accommodate components and has a high compatibility with component shapes, and is lightweight and thin even if it is thin. It is an object of the present invention to realize a structure that can sufficiently secure the positioning accuracy of the device.

[0004]

Means for Solving the Problems In order to solve the above-mentioned problems, means devised by the present invention includes a plurality of block members formed so as to be capable of supporting block members for positioning and fixing components, and arranged in an aligned state. A component receiving surface formed in a surface uneven shape having a block support portion and a concave groove portion formed between the block support portions is provided, and the component receiving surface is moved from an edge of the block support portion to the concave groove portion. A plate-like body having a corrugated cross section formed by resin molding and having a curved surface up to the bottom of the block support portion , wherein the block support portion is provided with an engagement element for positioning the block member. It is.

[0005] Here, the engaging element is provided in the block section.
Formed on the bottom surface of the material or the surface of the block support
Number of locating pins and the surface or front of the block support
It is formed on the bottom surface of the block member and faces the positioning pin.
And a plurality of fitting holes corresponding to one of the positioning pins.
Is desirably formed longer than other positioning pins .

[0006] Further , the upper part is so surrounded as to surround the component accommodating surface.
And a peripheral wall that rises toward
An overhang formed so as to project from
A skirt portion extending in the direction of the arrow and the component receiving surface of the peripheral wall portion
A plurality formed along the direction surrounding the peripheral wall portion,
A plate-shaped rib connected to the overhang portion and the skirt portion;
Is desirably provided integrally by resin molding .

Further, the rib is provided between the skirt and the front.
At a substantially intermediate position between the peripheral wall portion and the overhang portion,
It is desirable to have a thick portion extending downward .

[0008]

[0009]

[0010]

According to the first aspect, since the positioning block is attached to each of the plurality of block supporting portions of the block supporting surface by the engaging element, the positioning block can be formed in a shape suitable for a component having an arbitrary shape. In addition, a plurality of parts having arbitrary shapes can be efficiently accommodated.
In addition, since the component housing surface is formed of a plate-like body having a wavy cross-section formed by resin molding from the edge of the block support portion to the bottom of the concave groove portion, the strength and accuracy of the component housing surface are reduced. In particular, dimensional accuracy can be improved by preventing the occurrence of distortion and warpage of the resin during resin molding.

According to claim 2, one of the positioning pins is
If formed longer than other pins,
Remove the block without making it difficult to remove the positioning block.
The mounting of the positioning block on the rack support surface can be improved.
You.

According to the third aspect , the projecting portion is provided at the tip of the peripheral wall portion.
A skirt portion is provided in order, and a peripheral wall portion, an overhang portion, and a skirt portion are further provided.
A plate-shaped rib connected to the cart has been formed.
Can improve the rigidity of the
To improve the dimensional accuracy by preventing distortion and warping
Can be.

According to the fourth aspect , the peripheral wall portion and the skirt portion
Extends downward from the overhang to the rib at a substantially intermediate position between
The rigidity of the tray and the forming
Accuracy can be further improved.

[0014]

[0015]

[0016]

Next, an embodiment of the component tray according to the present invention will be described. FIG. 1 is a schematic perspective view showing the overall shape of the present embodiment. The present embodiment shows an example in which the tray is formed as a component tray for accommodating precision components made of resin, and is entirely formed of a hard resin containing glass fiber. here,
The positioning block 20 is a resin block having a substantially rectangular parallelepiped shape, and is mounted in an aligned state on a block housing surface 10 described later. Peripheral wall portions 11 are erected on four sides around the block housing surface 10, and the upper end of the peripheral wall portion 11 is connected to a projecting portion 12 that protrudes to the periphery.

The projecting portion 12 has a plurality of fixed shaft holes 13 formed at predetermined positions. This fixed shaft hole 13 is used, for example, when a component tray is transferred on a conveyor or the like, or is accumulated in a component stocker, etc.
This is for positioning or fixing the component tray itself by inserting a fixed shaft attached to the transport device when stacking at a predetermined location or the like. The overhanging portion 12 is formed with a sorting opening 14 having a diameter similar to that of the fixed shaft hole 13. The opening 14 constitutes a mark that can be read by an optical sensor installed along a transport path or the like to confirm the lot number, type, and the like of the component.
A plurality of information can be recorded in the selection opening 14 by the number of openings, the length of the openings, and the like. In addition, these fixed shaft holes 1
3 and the axis of the selection opening 14 are formed so as to pass through the projecting portion 12 and pass through a space between the peripheral wall portion 11 and a skirt portion 30 described later.

FIG. 2 shows the structure of the block receiving surface 10 of the component tray. The block accommodating surface 10 is formed in a cross-sectional unevenness (or a cross-sectional waveform) including a plurality of block supporting portions 15 protruding upward in a plateau shape and a concave groove portion 19 formed between the block supporting portions 15. It is a plate-like body.
The planar shape of the block supporting portions 15 is a square with rounded corners, and each block supporting portion 15 has an X-groove 1
9x and the Y groove 19y. The central surface of the block support 15 is a flat support surface, and fitting holes 16, 17, and 18 are formed at predetermined three locations.
The positional relationship between the fitting holes 16, 17, and 18 is such that only the fitting hole 16 is slightly separated from the other fitting holes in a direction away from the other fitting holes in a state where the fitting holes are arranged at the positions of the vertices of the equilateral triangle. And the fitting holes are arranged at the vertices of the isosceles triangle.

The block supporting portion 15 and the concave groove portion 19 are formed by making the thin plate uneven. In this structure, first, the strength of the component housing surface 10 is greatly improved by forming the concave groove portion 19 like a corrugated rib. Further, since the surfaces of the high and low portions from the block support portion 15 to the bottom portion (deepest portion in the concave groove portion 19) 19a of the concave groove portion 19 are all formed in a curved surface, it is possible to eliminate unevenness in strength, When the resin material is formed by molding, shrinkage of the resin is made uniform, thereby preventing distortion and warpage. Further, the thickness of the component housing surface 10 can be reduced by the above-described structure having increased strength.
By reducing the thickness of the component housing surface 10, the above-mentioned amount of distortion and warpage can be further reduced.

FIG. 3A shows the shape of the positioning block 20 in an inverted posture. The bottom surface 2 of this positioning block 20
1 is formed with positioning pins 22, 23, and 24 arranged at the vertices of an isosceles triangle with respect to each other so as to be fitted into the fitting holes 16, 17, and 18, respectively. On the upper surface 25 of the positioning block 20, concave portions or convex portions of various shapes are machined depending on the shape of the component to be accommodated. For example,
When accommodating a ring-shaped component, a ring-shaped groove is formed. When this positioning block is formed by injection molding, usually, only the half mold can be replaced to accommodate various parts.

As shown in FIG. 3B, the positioning pins 2
2, 23, and 24 are formed at predetermined heights from the bottom surface 21 and have washer-shaped support bases 22a, 23a, and 24a having a diameter larger than the fitting holes. The same-diameter shaft portion 22 having a diameter substantially matching the hole
b, 23b, and 24b, and round heads 22c, 23c, and 24c formed at the ends of the shaft portions having the same diameter. The positioning pins 22 and the positioning pins 23 and 24 have a support base and a shaft having the same diameter, and the head 22 c of the positioning pin 22 has the head 23 c and the head 23 c of the positioning pins 23 and 24.
The length is about twice as long as 24c.

FIG. 4 shows a state in which the positioning block 20 is attached to the block support portion 15. The positioning pins are provided in the fitting holes 16, 17, 1 of the block support portion 15.
8, and the support bases 22 a, 23 a, and 24 a of the positioning pins are in contact with the surface of the block support 15. Here, the positioning pin 22 is slightly moved from the block support portion 15 by the head portion 22 c through the fitting hole 16.
Of the positioning pin 2
The tips of the heads 23a, 24a of the 3, 24 are fitted with the fitting holes 17, 1, respectively.
8 is at the same height as the opening on the back side or slightly retracted into the fitting hole. The support base formed on the positioning pin prevents the positioning block 21 and the surface of the block support 15 from coming into contact with each other,
Thereby, even if the surface of the block supporting portion 15 has distortion or warpage, the influence of the distortion or warpage is not transmitted to the positioning block.

Normally, when positioning and fixing a plurality of pins and holes by fitting them into each other, it is difficult to attach and remove the holes if the fitting accuracy is increased to obtain the positional accuracy. Even more so if the length of the pins is made sufficiently long to facilitate installation. Conversely, if the play between the pin and the hole is increased to facilitate the attachment / detachment, there is a problem that the positioning accuracy is reduced and the positioning block is simultaneously detached when the component is taken out.

However, in this embodiment, the length of the same diameter shaft portion is made shorter than the depth of the fitting hole,
By making only the second head long, both ease of attachment and detachment of the block and positional accuracy are compatible. That is,
When the positioning block 20 is mounted on the block supporting portion 15, the head 22a of the positioning pin 22 is long, so that the positioning pin 20 is easily hooked on the fitting hole 16, and the length of the same diameter shaft portion of each positioning pin is short. Is easy.

When the positioning block 20 is mounted on the block support 15, the same diameter shaft portions 22b, 23b and 24b of the positioning pins are fitted into the fitting holes, so that the positioning block and the block support are supported. The mounting accuracy with the part is ensured.

Further, when removing the positioning block 20 from the state where the positioning block 20 is mounted on the block support portion 15,
The same diameter shaft portions 22b, 23b, 24b are formed shorter than the depth of the fitting holes, and the head portions 22 of the respective positioning pins are formed.
Since c, 23c, and 24c are formed in a round shape, even if there is little play between the positioning pin and the fitting hole, it can be easily removed by pulling up at a slight angle.

At the time of this removal, the positioning pins 22
Since the positioning pins 23 and 24 are formed at the same distance from each other, it is possible to remove the positioning pins 22 and the positioning pins 23 and 24 smoothly by slightly lifting them. However,
In this embodiment, since the positioning pin 22 is formed long, it is easier to remove the positioning pin 22 by pulling it up. Also, the head 22c of the positioning pin 22 is
Of the jig 2 shown in FIG.
6, the positioning block can be removed more smoothly by pushing out the positioning pin 22 from the back surface side of the block support portion 15. The same effect can be obtained by forming the positioning pin and the fitting hole in the positioning block and the block supporting portion in reverse.

The mounting structure using the positioning pins and the fitting holes completely fixes the positioning block when the positioning block is supported by substantially point contact between the support bases 22a, 23a, 24a and the surface of the block support portion 15. The minimum number of three points that can be supported satisfies both the fixing property and the mounting property. Of course, if sufficient supporting force and positional accuracy can be obtained, the number of supporting points may be reduced. In addition, four or more support points may be provided if the attachment is sacrificed.

Each support point by the positioning pin and the fitting hole is:
Since it is arranged at the vertex position of the isosceles triangle as described above, the mounting direction of the positioning block is uniquely determined. This has the effect that the relative positional relationship between a plurality of positioning blocks formed by molding or cutting can be accurately obtained. It is not necessary to limit the positions of the positioning pins and the fitting holes to the positions of the vertices of the isosceles triangle as described above. However, on the bottom surface 21 of the positioning block and the surface of the block support portion 15, two or more rotational symmetries are required. It is desirable to form so as not to have. That is, by not having a rotational symmetry of 360 ° or less, the positioning block 20 does not allow two or more mounting directions, and the reproducibility of the mounting accuracy can be improved.

FIG. 5 shows the structure of a positioning block for accommodating various components in the above embodiment. Usually, as shown in FIG. 1 to FIG.
Although one positioning block 20 is mounted on 5, when the components are large, the positioning blocks 27, 28, 29 are formed so as to be mounted over a plurality of block supports. Here, it is not necessary to provide the positioning pins of each positioning block in correspondence with all the fitting holes formed in the plurality of block supporting portions 15. Similarly, only three (27a, 27b, 27c, 28a,
28b, 28c, 29a, 29b, 29c). Conversely, when accommodating small components, it is desirable to form a plurality of component mounting portions on one positioning block. Although FIG. 5 shows a plurality of types of positioning blocks at the same time, usually only one type of these positioning blocks is used in alignment.

In this embodiment, the tray main body having the component receiving surface 10 can be formed according to a predetermined standard, and the positioning blocks can be formed into various shapes as described above in accordance with the components. The tray body and the positioning block are formed using various resin materials as raw materials by injection molding or the like. For example, ABS resin, acrylic resin, polycarbonate, or the like can be used. In addition, resin mixed with glass fiber (for example, 20 wt.
% Of glass fiber mixed resin-PC20), the accuracy and strength can be further improved.

FIG. 6 shows a front view and a side view of the component tray of this embodiment. A skirt portion 30 extending substantially parallel to the peripheral wall portion is formed downward from a lower surface of the overhang portion 12 connected to the upper end of the peripheral wall portion 11 and formed to project outward. In the space formed between the skirt portion 30, the peripheral wall portion 11, and the overhang portion 12, ribs 31, 3 are provided.
2, 33 are formed. The ribs 31, 32, 33
It is a thin plate having an arch-shaped lower contour connecting the skirt portion 30, the peripheral wall portion 11, and the overhang portion 12, and supports the three members mutually. The ribs 31 and 32 are formed so as to be slightly densely formed in the center of each side of the rectangular shape of the tray body. It is formed so as to form an angle. The rib 32 extends vertically downward from the converging lower end portion of the arch shape and extends wide over the chamfered portion of the peripheral wall portion 11.
a. Outside the connecting portion between the peripheral wall portion 11 and the component housing surface 10, a bottom raising portion 34 is provided in a shape projecting downward.

FIG. 7 shows this shape in detail. When stacking a plurality of component trays,
Reference numeral 2a abuts on the inner edge of the overhang 12 'of the lower component tray to support the entire tray. Rib 3
At 1, 32, and 33, a shaft portion 35 extending downward from the overhang portion 12 is formed at a substantially central portion away from both the peripheral wall portion 11 and the skirt portion 30. This shaft 3
5 is a portion having a diameter larger than the thickness of the other portion of the rib. This portion is not limited to the shaft shape and may be formed thicker than other portions.

The skirt portion 30 and the ribs 31, 32, 3
Numeral 3 reinforces the peripheral wall portion 11 and improves the strength of the entire component tray while preventing distortion and warpage. The thin ribs relieve stress due to shrinkage during molding and dramatically increase the strength particularly against impacts from the side of the component tray and impacts applied to the peripheral edge of the component tray from above. The shaft portion 35 increases the connecting force with the overhang portion 12 and further enhances the above-described operation of the rib.

In this embodiment, as described above, a plurality of block supporting portions and a concave groove formed therebetween are provided on the component accommodating surface to form an uneven thin plate, and the positioning block is attached to and detached from the block supporting portion. Since it can be mounted as possible, it is possible to cope with various components depending on the shape of the positioning block, and the strength of the component housing surface 10 is secured by the uneven shape of the block support portion and the concave groove portion, more preferably the waveform shape thereof, and it is thin. Even if it is a plate-like body, the block can be supported with high precision. Therefore, components of any shape can be positioned efficiently and accurately and a lightweight component tray can be obtained.

The peripheral wall 11, the overhang 12, the skirt 30, and the ribs 3 formed around the component accommodation surface 10.
With the structure of 1, 32, and 33, the strength of the entire tray can be further increased, and distortion and warpage due to shrinkage and the like at the time of molding can be avoided, so that both rigidity and shape accuracy can be achieved. . In addition, the rigid structure allows the tray to be thinner, so that the tray can be reduced in weight and deformation during molding can be further reduced. In addition, since the above-mentioned structure enables a high-accuracy tray to be manufactured by resin molding such as injection molding, the manufacturing cost can be relatively reduced.

[0037]

As described above, according to the present invention, since the positioning block is mounted on each of the plurality of block support portions of the block support surface by the engaging elements, the positioning block can be formed into a shape suitable for a component having an arbitrary shape. By forming, a plurality of parts of any shape can be efficiently accommodated. In addition, since the component housing surface is formed in a surface uneven shape having a block support portion and a concave groove portion, the strength and accuracy of the component housing surface can be improved, and the weight of the tray can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire structure of an embodiment of a component tray according to the present invention.

FIG. 2 is a partial plan view (a) showing the structure of the component housing surface in the embodiment, and a partial cross-sectional view (b) showing a state cut along the line BB of a.

FIG. 3A is a perspective view showing the structure of a positioning block in the embodiment, and FIG. 3B is an enlarged view showing the shape of a positioning pin.

FIG. 4 is an enlarged cross-sectional view showing a state in which the positioning block in the embodiment is attached to a block supporting portion of a component housing surface.

FIG. 5 is an explanatory diagram showing various configuration examples of a positioning block.

FIG. 6 is a front view (a) and a side view (b) of the embodiment.

FIG. 7 is an enlarged sectional view showing in detail a structure of a peripheral wall, an overhang, a skirt, and a rib in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Component accommodation surface 11 Peripheral wall part 12 Overhang part 15 Block support part 16, 17, 18 Fitting hole 19 Concave groove part 20 Positioning block 21 Bottom surface of positioning block 22, 23, 24 Positioning pin 22a, 23a, 24a Support base 22b, 23b, 24b Same diameter shaft portion 22c, 23c, 24c Head 30 Skirt portion 31, 32, 33 Rib 35 Shaft portion

Claims (4)

(57) [Scope of request for utility model registration] A block member for positioning and fixing a component is formed so as to be capable of supporting each of the block members, and has a plurality of block support portions arranged in an aligned state, and a concave groove formed between the block support portions. A plate-like body having a component-receiving surface formed in a surface uneven shape, the component-receiving surface being a curved surface from the edge of the block support portion to the bottom of the concave groove portion and having a corrugated cross section formed by resin molding. in the configuration, the Bro
A component tray, wherein an engagement element for positioning the block member is provided on the hook support portion . 2. The method according to claim 1, wherein the engaging element is provided on a front side.
On the bottom surface of the block member or the surface of the block support portion
A plurality of positioning pins formed and the block support portion
Formed on the surface of
And a plurality of fitting holes corresponding to the positioning pins.
One of the female pins is formed longer than the other positioning pins
Parts tray, characterized by that. 3. The device according to claim 1, wherein
A surrounding wall portion rising upward so as to surround the surrounding wall portion;
An overhang formed to project outward at the end;
A skirt portion extending downward from the overhang portion;
A plurality is formed along a direction surrounding the component housing surface,
Connected to the peripheral wall, the overhang, and the skirt.
A component tray characterized in that a plate-shaped rib and a resin rib are integrally provided by resin molding . 4. The device according to claim 3, wherein the rib is
At a substantially intermediate position between the cart portion and the peripheral wall portion,
A component tray comprising a thick portion extending downward from the overhang portion .