JP2000357729A - Precision part holding jig comprising grip mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cause an elastic pressing force even in a direction different from the sliding direction of a movable plate by allowing, when a precision part is housed in a dimple, a movable part which moved in reverse direction once to contact the precision part as it moves again in one direction under elastic force, for larger elastic deformation. SOLUTION: A pin is inserted into a through hole 4 to press a movable plate 3 leftwise for sliding. Then a micro chip is inserted in a dimple 2 which became a perfect hole under the resiliency of a spring 6. When pressing the movable plate 3 leftwise is stopped, a peninsular spring 5 of the movable plate 3 presses the micro chip 7 under back-pressing of the spring 6, so that the micro chip is held in the dimple 2 under the pressure. Under the elastic force of the peninsular spring 5 of the movable plate 3, the micro chips are held for all dimples 3 at precise and regular positions even if the dimple 2 is significantly larger than the micro chip.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus or a jig for holding a small part having a gripping mechanism, such as a microchip, for example, in a patterning step or a cleaning step in a production line.

[0002]

2. Description of the Related Art In order to hold a small part such as a microchip on a manufacturing line, a jig having a large number of through holes or depressions in which a lower part of the small part fits completely in a metal plate or the like is used. However, in such a state, for example, the cleaning liquid may jump out of the hole when the cleaning liquid vigorously hits or receives vibration. Also, since it is merely placed, it cannot be turned upside down with a jig. For example, a cleaning liquid must be applied from above and below for cleaning. Further, in a patterning step where positional accuracy is required, it is impossible to fix firmly due to a gap between a necessary chip and a hole. In addition, when removing the jig from the jig using gravity, if the jig is turned upside down, the way of dropping will be different and the chip will be easily damaged, and it will not be possible to orderly move it to another receiver at once .

[0003]

The present inventor has conducted various studies to solve these problems, and has found that a multi-layer metal structure having a built-in movable plate biased by a spring in one horizontal direction is used for holding small parts. We have developed a jig that has many hollows and holds small parts by pressing the spring of the movable plate that is pushed back in the horizontal direction. However, even microchips have variations in dimensions, and if this alone is used, if the size of the hollow is too large, the holding will be unstable in the horizontal direction, or the positioning accuracy will be insufficient, while Then, it turned out that the problem that something that could not be entered appeared could not be solved.

[0004] Particularly, in the step of forming a pattern on a microchip, etc., positional accuracy is required. Therefore, if small components housed in the recessed holes of the jig cause wobble therein or the positional accuracy is insufficient. Is very undesirable.

In order to solve this problem, the present inventor has further studied and searched for an improved holding mechanism by generating an elastic pressing force in a direction different from the sliding direction of the movable plate. The present invention has been completed.

[0006]

The present invention has the following construction. 1. A jig for holding a precision part, wherein the jig is
A recess for accommodating at least a portion of the precision component, the recess being resiliently biased in one direction perpendicular to a perpendicular to the recess, and movable in a direction opposite to the one direction; The jig has an internal structure in which a movable part having a through hole or a notch for passing the precision component at a position corresponding to the part position exists across the cross section of the recess. The movable portion has a shape portion that is elastically deformed in a direction different from the one direction perpendicular to a perpendicular line of the depression portion, and the shape portion, when the precision component is accommodated in the depression portion, The movable part, once moved in the opposite direction to the one direction, has a shape in which as the movable part moves in the one direction again by elasticity, it comes into contact with the precision component to be more elastically deformed. Utensils. 2. 2. The jig according to 1, wherein one jig has a large number of the depressions for holding a plurality of precision parts, a through hole at a corresponding position of the movable layer, and the shape portion. 3. It has one or more dents or through-holes for storing all or a part of the held object, and is movable in one direction parallel to the plate surface at a fixed distance resiliently biased inside. The object to be held housed in the depression or the penetrating portion is pressed and held around the depression or the penetrating portion by being pressed around the hole penetrating the movable plate. The movable plate further includes a lateral pressing portion for elastically laterally pressing the held object in a direction parallel to a plate plane different from the one direction, in a part of a periphery of the through hole. The lateral pushing portion has a shape in which the lateral pushing force increases after the movable plate approaches the biased position and comes into contact with the held object as the movable plate approaches, and the movable plate is moved in a direction opposite to the one direction. For holding an object to be held having a hole for moving the object. 4. Consisting of a plate-like body having at least one penetration portion or depression surrounding at least a part of the held object, the plate-like body is manufactured by stacking at least three layers of a bottom plate, a frame plate, and an upper plate, The frame plate layer portion has a space, and a movable plate is built in the space, and the movable plate has a through hole at a position corresponding to the through portion or the concave portion, and is elastically biased. Means, which is deflected in one direction parallel to the plate surface, is movable in a direction opposite to the one direction by a predetermined distance by applying a force opposing the means, and is provided with a penetrating portion or depression of the plate-like body. The shape and size of the portion and the shape and size of the through hole of the movable plate are such that the held object or a part thereof, which is surrounded by the through portion or the depression and penetrates the through hole, is elastically biased. Pressed against the peripheral wall of the penetration or depression by the movable plate pressed by the means. A peninsula-shaped elastic flexible member projects from the through hole of the movable plate, and the movable plate moved in the opposite direction moves the movable plate in the one direction. Has a shape approaching the center line in the same direction of the penetrating portion or the concave portion in accordance with the above, and has a shape in contact with the held object or a part thereof, and enters the position where the held object is surrounded by the penetrating portion or the concave portion To the position where the peninsula-like elastic flexure does not hinder,
In order to move the movable plate in the direction opposite to the one direction, a hole for applying a force opposing the hole of the upper plate and the elastically biasing means provided on the movable plate at a corresponding position is provided. An apparatus for holding an object to be held.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a holding device 1 for holding many small parts according to the present invention. The holding device 1 has 100 recesses 2 for receiving small parts. A movable plate 3 is provided inside the holding device 1, and a pin is inserted into a through hole 4 formed in the movable plate 3 and moved in one direction parallel to the plate (in the direction of the arrow in FIG. 1). 3 can be slid against the force of the spring. FIG. 1 shows an example having two movable plates 3 which can be moved independently and are arranged in two vertical columns.

A peninsula-shaped spring portion 5 which is an integral part of the movable plate 3 can be seen from each of the recessed holes 2 in FIG. Movable plate 3
Is moved in the direction of the arrow, the peninsular spring portion 5 disappears, and the hollow 2 becomes a complete hole.

FIGS. 2 to 4 show aa ', bb',
It is sectional drawing of aa ', Comprising: The sliding operation | movement of the said movable plate is demonstrated in a cross section. When a pin is inserted into the through hole 4 in FIG. 3 and the movable plate 3 is pushed to the left and slid, the microchip 7 (FIG. 4) is inserted into the recessed hole 2 which has been subjected to the repulsive force of the spring 6. If the movable plate 3 is stopped to be pushed to the left later, the spring 6 pushes back and the peninsula-shaped spring portion 5 of the movable plate 3 pushes the microchip 7, and the microchip 7 is held in the hollow 2 by the pressing. Since the peninsula-shaped spring portion 5 of the movable plate 3 also exerts elasticity from the near side to the far side in FIG. 4, even if the recessed hole 2 is considerably larger than the size of the microchip 7, the microchip is accurate for all the recessed holes 3. It is kept in a regular position.

[0010]Jig manufacturing example  The structure shown in FIGS. 1 to 5 can be manufactured as follows.
You. Made of stainless metal as shown in the cross section of FIGS.
Bottom plate 8 and upper bottom plate with each through hole in place
9, a frame plate 10, an upper plate 11, and a movable plate 3 are prepared. Bottom
The plate 8, the upper bottom plate 9, and the frame plate 10 are diffusion-welded. Of frame plate 10
The spring 6 is in contact with one side of the recess formed by the through hole.
Place the movable plate 3 on the side opposite to the side where the spring 6 is located.
And placed in the same recess. Next, the upper plate 11 is
Spot welding.

In the above method, the size of the entrance of the recessed hole 2 only needs to consider the accuracy of the through hole of the upper plate 2. When the through-hole is formed by etching, a hole with high precision can be formed by devising to reduce the side etch. Except for the part where the peninsula-shaped part 5 is visible in FIG.
Since the peninsula-shaped portion 5 is formed larger than the through hole of the upper plate 2 and becomes invisible when the movable plate 3 is slid, it can exert elasticity in a horizontal direction different from the sliding direction even when pushed back by a spring. It is. The bottom plate is the top plate 1
An embodiment having the same through-hole as that of 1 is also possible.

[0012]

[Effect of the present invention] a) It is possible to prevent the held parts from jumping out. B) Since the components can be turned upside down while holding the components, the efficiency of the production line can be improved. C) The holding force can be released simultaneously by moving the movable plate. D) The transfer of components from the holding device using gravity drop to another receiver can be performed in an orderly manner. E) By providing the pressing means from the direction different from the sliding direction of the movable plate, the size of the hole to be accommodated can be increased without wobbling or deteriorating the accuracy of the holding of the parts. Can also respond.

[Brief description of the drawings]

FIG. 1 is a perspective view of a holding device for holding many small parts of the present invention.

FIG. 2 is a cross-sectional view taken along the line aa ′ of FIG. 1 for illustrating a sliding operation in cross-section.

FIG. 3 is a cross-sectional view taken along the line bb 'of FIG. 1 for explaining a sliding operation in a cross section.

FIG. 4 is a cross-sectional view taken along the line aa ′ of FIG. 1, illustrating a sliding operation in cross-section.

FIG. 5 is a plan view showing a state where a movable plate and a spring are included in a concave portion formed by a frame plate, which is visible when an upper plate is removed.

Claims (4)

[Claims] 1. A jig for holding a precision component, the jig having a recess for accommodating at least a part of the precision component, and one direction perpendicular to a perpendicular line of the recess. Elastically biased to
A movable part which is movable in a direction opposite to the one direction and has a through-hole or a cutout for passing the precision component at a position corresponding to the position of the recess is provided. The jig has an internal structure that exists transversely, and the movable portion has a shape portion that is elastically deformed in a direction different from the one direction perpendicular to a perpendicular line of the recessed portion. When the precision part is accommodated in the recess, the movable part once moved in the opposite direction to the one direction comes into contact with the precision part as it moves in the one direction again by elasticity. A jig having a shape that is more elastically deformed. 2. The apparatus according to claim 1, wherein one jig has a number of said recesses for holding a number of precision parts, a number of through holes at corresponding positions of said movable part, and a number of said shapes. The described jig. 3. The apparatus according to claim 1, wherein the object to be held has at least one depression or through-hole for accommodating all or a part of the object to be held. A movable plate having a corresponding number of holes is built-in, and an object held in the recess or the through portion is pressed around the recess or the through portion by pressing around the hole penetrating the movable plate. Further, the movable plate elastically laterally pushes the held object in a part of a periphery of the through hole in a direction parallel to a plate plane different from the one direction. The lateral pressing portion has a shape in which the lateral pressing force increases after the movable plate comes into contact with the object to be held as the movable plate approaches the deviated position. Holds objects to be held with holes for moving in one direction and the other Because of the device. 4. A plate-like body having at least one penetrating portion or depression surrounding at least a part of an object to be held, said plate-like body being manufactured by stacking at least three layers of a bottom plate, a frame plate and an upper plate. As a result, there is a space in the frame plate layer portion, a movable plate is built in the space, and the movable plate has a through hole at a position corresponding to the through portion or the concave portion. The plate-like body is biased in one direction parallel to the plate surface by elastically biasing means, and can be moved in a direction opposite to the one direction by a predetermined distance by applying a force opposing the means. The shape and size of the through portion or the recess of the movable plate and the shape and size of the through hole of the movable plate are such that the held object or a part thereof, which is surrounded by the through portion or the recess and penetrates the through hole, is The movable plate pushed by the elastically biasing means causes the periphery of the penetrating portion or the concave portion to move. A peninsula-shaped elastic flexible member protrudes from the through-hole of the movable plate, and the movable plate moved in the opposite direction moves in the one direction. As the object moves, it approaches the center line in the same direction of the penetrating portion or the concave portion, and has a shape to come into contact with the held object or a part thereof, and the held object is surrounded by the penetrating portion or the concave portion In order to move the movable plate in a direction opposite to the one direction until the peninsula-shaped elastic bending member does not hinder the entry into the position, the movable plate in the hole in the upper plate and the movable plate in the corresponding position are moved. A device for holding an object to be held, having a hole for applying a force opposing the resilient biasing means provided.