JP2021136449A - Work-piece clamp tray - Google Patents

Abstract

To provide a work-piece clamp tray with a simple structure and with less number of components.SOLUTION: A work-piece clamp tray comprises: a first plate 110 on which a plurality of first opening parts 112 housing each work-piece 200 is formed; a second plate 120 in which a second opening part 122 is formed on a position corresponding to each first opening part 112, and which is overlapped to the first plate 110; a pressed-on part 123 which presses each work-piece 200 on an inner wall of each first opening part 112 so as to be contacted to a side face of each work-piece 200 housed in each of the first opening part 112 and each second opening part 122; and hole parts 116 and 126, and a hole parts 136, and a shaft, which hold a state where each work-piece 200 is pressed on the inner wall of each first opening part 112 by the pressed-on part 123.SELECTED DRAWING: Figure 2

Description

The present invention relates to a work clamp tray, and more particularly to a work clamp tray having a simple structure and a small number of parts.

Patent Document 1 discloses a technique for providing a work clamp tray that can be positioned and fixed with high accuracy even on a thin work and has high productivity. In this work clamp tray, an upper plate, a movable plate, and a lower plate are laminated in this order, and the movable plate is formed with a plurality of positioning holes for accommodating the work and fixes the accommodated work. It is possible to move to a fixed position to be moved and a release position to release the fixed work, and at least one of the upper plate and the lower plate is accommodated so that the work can be accommodated in the positioning hole. A hole is formed, and an abutting portion protruding in the direction of the opposite plate is formed integrally with the upper plate or the lower plate on the upper plate or the lower plate, and the abutting portion and the positioning hole are formed. It is said that the work is sandwiched between them.
Japanese Unexamined Patent Publication No. 2018-22728

However, the work clamp tray disclosed in Patent Document 1 employs a movable plate having a complicated structure or a movable plate having a large number of parts, as shown in FIG. 6 or FIG. Improvements are needed in terms of points.

Therefore, it is an object of the present invention to provide a work clamp tray having a simple structure and a small number of parts.

In order to solve the above problems, the work clamp tray of the present invention (for example, the work clamp tray 100 of FIG. 1) is
A first plate (for example, the first plate of FIG. 2) in which a plurality of first openings (for example, the first opening 112 of FIG. 2) in which a work (for example, the work 200 of FIG. 2) is housed is formed. 110) and
A second plate (for example, the second plate of FIG. 2) in which a second opening (for example, the second opening 122 of FIG. 2) is formed at a position corresponding to each of the first openings and is superimposed on the first plate. 120) and
A pressing portion (for example, the pressing of FIG. 4A) that abuts on the side surface of the work housed in each of the first and second openings and presses the work against the inner wall of each of the first openings. Part 123) and
A holding portion (for example, the hole 116, the hole 126, and the hole 136 in FIG. 2) that holds the work pressed against the inner wall of the first opening by the pressing portion.
To be equipped.

Further, a mechanism for sliding the first plate and the second plate while guiding them (for example, the guide portion 128 and the guide block 133 in FIG. 2) is provided.
The pressing portion may press the work in an oblique direction with respect to the sliding direction by the mechanism.

The holding portion includes an elastic portion (for example, the elastic portion 125 in FIG. 4B) that is urged in a direction for restoring the positional relationship between the first plate and the second plate slid by the mechanism.
A counter portion (shaft) that opposes the restoration of the first plate and the second plate that are slid by the mechanism while being urged by the elastic portion.
Can also be provided.

The pressing portion has a first arm having flexibility for applying a force to the work in a first direction and a first arm having flexibility for applying a force in a second direction orthogonal to the first direction. It can also be equipped with two arms.

Embodiment of the invention

Hereinafter, the work clamp tray according to the embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an external view of the work clamp tray 100 of the present embodiment. 1 (a) is a plan view, FIG. 1 (b) is a side view seen from the longitudinal direction, FIG. 1 (c) is a bottom view, and FIG. 1 (d) is a side view seen from the lateral direction. , FIG. 1 (e) shows a perspective view, respectively.

The work clamp tray 100 shown in FIGS. 1 (a) to 1 (e) is easy to understand by looking at FIG. 1 (b) or FIG. 1 (d), but the first plate 110, the second plate 120, and the third plate It is roughly classified into a plate 130, and is superimposed in this order from the top of FIG. 1 (b). All of these can be manufactured from stainless steel or the like (for example, SUS301, SUS303, SUS304, SUS631; the same applies hereinafter).

Both the first plate 110 and the second plate 120 can have a thickness of, for example, 0.5 mm to 1.5 mm, and both thicknesses may be the same or different. The third plate 130 can have a thickness of, for example, 2.0 mm to 4.0 mm.

In the present embodiment, the first plate 110 and the third plate 130 are screwed to each other, and the second plate 120 is slidable between them. However, the work clamp tray of the present invention does not necessarily have a three-plate structure, and may have a two-plate structure.

In the case of a two-plate structure, for example, the guide portion 128 and the guide block 139 described later may be provided on the first plate 110, and the guide block 133 described later may be provided on the second plate 120.

FIG. 2 is an exploded perspective view of a part of FIG. 1 (e), and FIG. 2 also shows a work 200 for reference. The configurations of the first plate 110, the second plate 120, and the third plate 130 will be described with reference to FIG.

The first plate 110 is formed with a plurality of first openings 112 in which the work 200 is housed. The first opening 112 may be formed by any method such as etching, pressing, and wire cutting. The arrangement of the first openings 112 is not limited to this, and can be arranged in a matrix, for example. The size of the first opening 112 may be determined according to the size of the work 200, and as an example, it can be about 5.0 mm to about 10.0 mm.

A recess for receiving the top 210 of the work 200 is formed around the first opening 112. The depth of the recess may be determined by the thickness of the top 210, but as an example, it can be about 0.2 mm to 0.8 mm.

Here, the work 200 shows an example in which a top portion 210 on a plane and a cylindrical portion 220 having the same axis on the lower side thereof are provided. The first opening 112 has a shape corresponding to the cylindrical portion 220. Therefore, when the work 200 is of a type having a square cylinder portion instead of the cylindrical portion 220, the shape of the first opening 112 can be a quadrangular shape.

Further, the first plate 110 has a screw receiving portion 114 for receiving a screw (not shown), a hole 116 through which a shaft (counterpart) (not shown) is passed, and a second plate on the outer peripheral portion of the plurality of first openings 112. A notch 118 is formed so that the 120 can be pressed when it is slid with respect to the first plate 110.

The second plate 120 is formed with a plurality of second openings 122 in which the cylindrical portion 220 of the work 200 is housed. The second opening 122, like the first opening 112, has a shape corresponding to the cylindrical portion 220. The size of the second opening 122 may also be determined according to the size of the work 200, and as an example, it can be about 5.0 mm to about 10.0 mm.

As shown in FIG. 2, the size of the second opening 122 may be larger than the size of the first opening 112. This is because the pressing portion 123 is provided so as to overlap a part of the second opening 122, so that the accommodating area in the second opening 122 is narrowed by that amount.

The second plate 120 is guided to the outer peripheral portion of the plurality of second openings 122 when the hole 126 located corresponding to the hole 116 and the second plate 120 slide with respect to the first plate 110. Guide portion 128 and the guide portion 128 are formed.

It should be noted that the holes 116 and the holes 126 do not have their axes aligned in the state before the second plate 120 slides (the state shown in FIG. 1), and after the second plate 120 slides. In the state of, their axes will match. This is to realize that the second plate 120 is locked in a sliding state.

Further, the second plate 120 abuts on the side surface of the first opening 112 and the cylindrical portion 220 housed in the second opening 122 in the vicinity of the second opening 122, and the inner wall of the first opening 112 A pressing portion 123 that presses the cylindrical portion 220 against the cylinder portion 220 is provided.

A structural example of the pressing portion 123 will be described later with reference to FIG. 4, but a beryllium copper alloy, a titanium copper alloy, or the like can be used as the material. In the former case, for example, an alloy containing 1.5 wt% to 2.5 wt% beryllium, 0 wt% to 0.3 wt% cobalt, etc. may be used, and in the latter case, for example, 1. It can be an alloy containing 0 wt% to 5.0 wt% titanium. As for the manufacturing method of the pressing portion 123, any of etching, pressing, wire cutting and the like may be adopted.

The pressing portion 123 removes the screw connecting the first plate 110 and the third plate 130 even if the work clamp tray 100 is bent, broken, deteriorated, or worn when the work clamp tray 100 is operated. In the case of a two-plate structure, the second plate 120 can be slid with respect to the first plate 110 to be disassembled and replaced.

The third plate 130 is formed with a third opening 132 in which the cylindrical portion 220 of the work 200 is housed. Like the first opening 112, the third opening 132 has a shape corresponding to the cylindrical portion 220.

The third plate 130 corresponds to the screw receiving portion 134 corresponding to the screw receiving portion 114, the hole portion 136 corresponding to the holes 116 and 126, and the notch portion 118 on the outer peripheral portion of the plurality of third openings 132. A notch portion 138 is formed.

Further, a guide block 133 housed in the guide portion 128 and guides the second plate 120 when sliding the second plate 120 with respect to the third plate 130 is attached to the third plate 130 through a screw received by the screw receiving portion 114. Has been done. The guide block 133 may be made of stainless steel or the like.

FIG. 3 is a perspective view seen from a direction different from the perspective view shown in FIG. In addition to the portion shown in FIG. 2, FIG. 3 shows a guide block 139 that receives the elastic portion 125 described later. The guide block 139 can be made of stainless steel or the like.

4 (a) and 4 (b) are enlarged views of the second plate 120 shown in FIG. FIG. 4A shows the above-mentioned pressing portion 123. The pressing portion 123 includes a fixed end 123a with respect to the second plate 120, a spring portion 123b adjacent to the fixed end 123a, a contact portion 123c adjacent to the spring portion 123b, and a free end 123d adjacent to the contact portion 123c. including.

The outline and structure of the pressing portion 123 are not limited to those shown in FIG. 4A. For example, the shape of the spring portion 123b is not linear but curved to match the shape of the cylindrical portion 220. By doing so, it is also possible to stably press the cylindrical portion 220.

Here, regarding the spring portion 123b, when the pressing portion 123 is a so-called 25 alloy, the width thereof may be 0.1 mm to 0.6 mm and the height thereof may be 0.2 mm to 0.8 mm. By doing so, unless the weight of the work 200 is unexpectedly heavy or other conditions other than the standard, a predetermined spring property can be realized and the work 200 can be sufficiently clamped.

When the second plate 120 is slid with respect to the first plate 110 and the third plate 130, the position of the fixed end 123a with respect to the second plate 120 does not change, but the spring portion 123b is in a contracted state, and the first opening 112 and the first opening 112 and The contact portion 123c comes into contact with the side surface of the cylindrical portion 220 of the work 200 housed in the second opening 122, and the position of the free end 123d is displaced.

That is, the pressing portion 123 presses the work 200 in an oblique direction (for example, 45 °) with respect to the sliding direction of the second plate 120. In the present embodiment, since the pressing portion 123 includes the contact portion 123c, the work 200 can be positioned in both the sliding direction and the orthogonal direction to the sliding direction. In this way, even if various works 200 are mixed or there are individual differences in the works 200, the work clamp tray 100 can clamp the work 200.

FIG. 4B shows a portion not shown in FIGS. 2 and 3. As shown in FIG. 4B, in the present embodiment, the recess 127 and the substantially K-shaped elastic portion 125 housed in the recess 127 are shown. The elastic portion 125 includes a fixed end 125a with respect to the second plate 120, a spring portion 125b adjacent to the fixed end 125a, and a free end 125c adjacent to the spring portion 125b.

When the second plate 120 is slid with respect to the first plate 110 and the third plate 130, the position of the fixed end 125a with respect to the second plate 120 does not change, but the free end 125d is received by the guide block 139 shown in FIG. Then, the spring portion 125b is in a contracted state.

Next, the operation of clamping the work 200 by the work clamp tray 100 of the present embodiment will be described.

First, the first plate 110, the second plate 120, and the third plate 130 are in the state shown in FIG. 1, that is, in the state before sliding, the first opening 112, the second opening 122, and the third. The work 200 is inserted into the opening 132.

Subsequently, the second plate 120 is slid with respect to the first plate 110 and the third plate 130. Specifically, as can be easily understood by looking at FIG. 2, since the notch 118 of the first plate 110 and the notch 138 of the third plate 130 are formed, there is a gap between them in the second plate 120. You should press it.

As a result, the second plate 120 is guided by the guide block 133, slides between the first plate 110 and the third plate 130, and the elastic portion 125 is deformed by being received by the guide block 139, and the recess 127 It becomes a contracted state within.

At the same time, the pressing portion 123 abuts on the side surface of the cylindrical portion 220 of the work 200 housed in the first opening 112 and the second opening 122, and the cylindrical portion is formed on the inner wall of the first opening 112. 220 is pressed.

After that, the shaft is passed through the hole 116, the hole 126, and the hole 136, and the second plate 120 is locked so as not to return to the state shown in FIG. At this time, since the elastic portion 125 and the pressing portion 123 each exert an urging force for restoring the original shape, the clamp of the work 200 can be realized.

Therefore, while the work 200 is fixed by the work clamp tray 100, the work 200 is conveyed to the next stage, the processing in that stage is executed, and then the work 200 is passed through the hole 116, the hole 126, and the hole 136. When the shaft is removed, the second plate 120 returns to the state shown in FIG. 1, and the clamp of the work 200 is released.

FIG. 5A is a diagram showing a modified example of the work clamp tray 100 shown in FIG. FIG. 5B is an enlarged view of a part of the second plate 120 shown in FIG. 5A, which corresponds to FIG. 4A.

As shown in FIG. 5A, the work clamp tray 100 of this modified example is used when clamping the work 200 arranged in a line shape, and is particularly suitable when the outline shape of the work 200 is a rectangular parallelepiped. It can be clamped.

As shown in FIG. 5B, the second plate 120 has a first arm having a fixed end 123a, a spring portion 123b, and an abutting portion (cum-free end) 123c, and a fixed end 123a, a spring portion 123b', and an abutting portion. It is equipped with a second arm called a part (cum-free end) 123c'.

In the example shown in FIG. 4, the work 200 is pressed diagonally with respect to the sliding direction (vertical direction in the drawing) of the second plate 120 with respect to the first plate 110, but in the example shown in FIG. 5, the second plate 120 The work 200 is pressed from the direction orthogonal to the slide direction by the first arm and from the parallel direction by the second arm, and as a result, the work 200 is pressed diagonally with respect to the slide direction. There is.

Specifically, in the first arm, the contact portion 123c is formed at the end of the spring portion 123b, and the receiving portion 123e of the spring portion 123b is formed on the first plate 110. Then, when the second plate 120 is slid downward in the drawing with respect to the first plate 110, the contact portion 123c is displaced toward the right side of the drawing, that is, toward the work 200, which is orthogonal to the slide direction. ..

Further, when the second plate 120 is slid downward in the drawing with respect to the first plate 110, the second arm is orthogonal to the spring portion 123b'extending in the direction orthogonal to the sliding direction and the spring portion 123b'. A contact portion 123c'that extends in the direction of the work 200 is formed. Then, when the second plate 120 is slid, the contact portion 123c'is displaced toward the downward direction in the drawing parallel to the slide direction, that is, toward the work 200.

When the work 200 is viewed in a plane and the difference between the length and the width is small, the structure can be simplified by using the pressing portion 123 shown in FIG. 4, while the work 200 is flat. When the difference between the length and the width is large, the work 200 may rotate when the work 200 is pressed by the pressing portion 123 depending on the position of the work 200 in the pressing portion 123 shown in FIG. As shown in FIG. 5, in the case of those provided with the first and second arms, it is possible to avoid such inconvenience.

As described above, the work clamp tray 100 of the present embodiment has a smaller number of parts and a simpler structure than that of Patent Document 1. Further, since the work clamp tray 100 of the present embodiment employs a screw-fastened and / or slide-type plate, a remarkable effect that consumable parts (for example, the pressing portion 123) and the like can be easily replaced. Play.

It is an external view of the work clamp tray 100 of this embodiment. FIG. 1 (e) is an exploded perspective view of a part of FIG. 1 (e). It is a perspective view seen from the direction different from the perspective view shown in FIG. It is an enlarged view of the 2nd plate 120 shown in FIG. It is a figure which shows the modification of the work clamp tray 100 shown in FIG. 1, and is the enlarged view of a part of the 2nd plate 120 thereof.

100 Work clamp tray 110 1st plate 112 1st opening 114 Screw receiving part 116 Hole part 118 Notch part 120 2nd plate 122 2nd opening 123 Pushing part 125 Elastic part 126 Hole part 127 Recessed part 128 Guide part 130 No. 3 Plate 132 3rd opening 133 Guide block 134 Screw receiving part 136 Hole part 138 Notch part 139 Guide block 200 Work 210 Top 220 Cylindrical part

Claims (4)

A first plate, each of which has a plurality of first openings for accommodating workpieces,
A second plate in which a second opening is formed at a position corresponding to each of the first openings and is superimposed on the first plate, and
A pressing portion that abuts on the side surface of the work housed in each of the first and second openings and presses the work against the inner wall of each of the first openings.
A holding portion that holds the work pressed against the inner wall of the first opening by the pressing portion, and a holding portion.
Equipped with a work clamp tray. Further, a mechanism for sliding the first plate and the second plate while guiding them is provided.
The work clamp tray according to claim 1, wherein the pressing portion presses the work in an oblique direction with respect to a sliding direction by the mechanism. The holding portion includes an elastic portion that is urged in a direction that restores the positional relationship between the first plate and the second plate that have been slid by the mechanism.
A counter portion that opposes the restoration of the first plate and the second plate that are slid by the mechanism while being urged by the elastic portion.
The work clamp tray according to claim 1. The pressing portion has a first arm having flexibility for applying a force to the work in a first direction and a first arm having flexibility for applying a force in a second direction orthogonal to the first direction. The work clamp tray according to claim 1, further comprising two arms.

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