JP2006150479A - Transferring fixture and positioning fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transferring fixture to efficiently and safely transfer a drill or the like for a printed circuit board aligned and stored in a transfer pallet or the like without gripping it by hand. <P>SOLUTION: The transferring fixture 1 is composed to have first gripping parts 3, 4 in which a plurality of tooth grooves 7 are provided at constant pitches, a second gripping part 5, in which a claw 5a is provided to one side corresponding to each tooth groove 7, and an opening/closing mechanism 6 for opening/closing the claw 5a by relatively moving the first gripping parts 3, 4 and the second gripping part 5 inserted to a guide groove 8 between the first gripping parts 3, 4. Target articles such as a plurality of the aligned drills D for a printed circuit board are respectively received in each tooth groove 7 and gripped with the side face 7a of each tooth groove and the claw 5a of the second gripping part. The target articles are moved to an objective place while holding the gripping state and transferred to a case or the like at the moving destination. It is preferable to make the claw 5a elastically deformable. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  This invention is capable of reliably positioning a plurality of articles collectively using a transfer jig capable of safely and efficiently transferring articles such as printed circuit board drills. The present invention relates to a positioning jig.

  For example, a printed circuit board drill used for drilling a printed circuit board is transferred from a transport pallet to a dedicated case and supplied to a drilling machine. In the conveying pallet, a large number of drills are stored in alignment with the cutting edge facing up. For example, 10 drills in the transfer pallet are arranged in five rows of 10 each and transferred to a special case, and the special case is set at a designated position. Upon receiving a drill replacement command, the drilling machine returns the used drill to the special case and resumes processing using the new drill newly taken out from the special case.

  The transfer of this printed circuit board drill from the transport pallet to the special case has been performed manually. However, the conventional work method of picking and transferring small printed circuit board drills one by one with a finger does not increase the work efficiency and takes a lot of time for the transfer. In addition, there is a concern that the sharp tip of the drill may get stuck in the hand, which is dangerous to work. Furthermore, since the drill is picked directly by a finger, there is a problem that the drill becomes dirty.

  The following Patent Document 1 discloses a storage case that can easily transfer an object to be stored in another container such as a tool magazine. The storage case is stored in the magazine case from the storage case. Since objects are transferred by a method in which the storage case and the magazine case placed on the storage case are turned upside down, they cannot be transferred in small portions.

In addition, if a special transfer device such as a robot hand is adopted, the transfer work can be automated to eliminate the disadvantages of manual work. Uneconomical and impractical.
JP 2000-7067 A

  The present invention provides a transfer jig capable of safely and efficiently transferring an article having a grippable shaft portion, for example, a printed circuit board drill, and the jig for reliably positioning a plurality of articles collectively. It is an object of the present invention to provide a positioning jig that can be performed easily. Hereinafter, the transfer object and the positioning object are referred to as target articles.

  In order to solve the above-described problems, in the present invention, each tooth gap includes a nail that sandwiches the target article between a first gripping portion having a plurality of tooth gaps on one side at a constant pitch and a side surface on one side of the tooth gap. A claw opening / closing mechanism that moves the claw toward and away from the side surface on one side of the tooth gap by relatively moving the first holding portion and the second holding portion. The first gripping part is arranged in a plurality of layers with the relative positions of the layers being fixed so that the second gripping part is sandwiched therebetween, and a plurality of aligned target articles are received in the tooth gaps. Provided is a transfer jig that is held by a side surface of a tooth gap of one gripping portion and a claw of a second gripping portion, and that can be moved to a target location while maintaining the state.

  The transfer jig is preferably one in which the claw can be elastically deformed and the position of the closed claw is naturally corrected by the elastic deformation of the claw.

  As one of preferred forms, this transfer jig is provided with a two-layer first gripping portion provided with a tooth groove on the front edge integrally at the tip of the grip, and a guide groove is provided between the two layers of the first gripping portion. The second holding part is slidably inserted into the guide groove of the lever, and the claw is opened and closed by sliding the second holding part in the groove width direction of the tooth groove by the opening / closing mechanism (hand jig) Can be considered.

  The hand jig includes an operation lever that swingably attaches the opening / closing mechanism to the first gripping portion, a power transmission element that is attached to the second gripping portion and is displaced in the width direction of the tooth gap by the operation lever, It is particularly preferable that the second gripping portion is composed of an elastic body that biases the claw in the closing direction or the opening direction, and is arranged at a position where the grip and the operation lever can be held together with one hand. .

  In the case of gripping the round shaft portion of the target article at the time of transfer, if one side surface of the tooth gap and the grip surface of the claw are concave R surfaces, the gripping stability is improved.

  Note that the jig that can elastically deform the claw of the second gripping portion is also suitable for a purpose of aligning and positioning a plurality of target articles that are hard to be deformed and are not deformed. The present invention also provides the positioning jig.

  The transfer jig of the present invention has at least two layers of the first gripping portion, the second gripping portion is disposed between the first gripping portions, and the claw provided on the second gripping portion and the first gripping portion are provided. Since the target article received in the tooth gap is gripped by the side surface of the tooth gap, the target article is supported at at least three points. In addition, since the side surface of the tooth gap of the first gripping portion having at least two layers serves as a positioning reference, the inclination of the axis of the target article hardly occurs, and a plurality of aligned target articles are reliably and stably held. Can be transported accurately.

  The jig in which the claw of the second gripping part can be elastically deformed does not impair holding stability even when a plurality of target articles whose gripped parts are hard are held together.

  For example, when the target article is a drill, it grips a shank that is hard and does not deform, but if there is variation in the diameter of the shank, the drill with the largest shank diameter becomes the reference for holding, and the gripping force of a drill with a small shank diameter decreases . In addition, when there are variations in the size of the gripping portion of the jig, the gripping portion with the minimum size becomes the reference for holding, and the gripping force of the drill held by the large-size gripping portion is reduced. For this reason, there is a risk that the drill with a small gripping force will tilt and cause troubles in transfer, or it may fall from the jig. However, if the claw of the second gripping part can be elastically deformed, the gripping force will be increased first. The generated claws are elastically deformed, and the other claws are further closed, whereby the dimensional error of the target article and jig is absorbed, so that all the target articles are stably held.

  If there is a function of absorbing a dimensional error due to the elastic deformation of the nail, an advantageous effect occurs when a plurality of target articles are aligned and collectively positioned. Even if the gripping part of the target article is hard and the dimensional error of the gripping part is large, the nail that previously generated the gripping force is elastically deformed to absorb the dimensional error. The target article is reliably pressed against the side surface of the tooth gap and positioned on the side surface. Accurate positioning is required when a plurality of target articles are aligned and machined collectively or assembled to other parts at once, and is effective for positioning in such a case.

  Embodiments of the present invention will be described below with reference to FIGS. 1 to 8 of the accompanying drawings. The transfer jig 1 of the embodiment has n (n is, for example, 10) drills for printed circuit boards collectively from the transport pallet and has storage holes having the same pitch as the alignment pitch on the transport pallet. It is for transferring to a dedicated pallet. The transfer jig 1 can be held with one hand, and is a hand jig for manually clamping and unclamping a drill.

  The transfer jig 1 includes a grip 2, first gripping portions 3 and 4 that are vertically stacked with a gap, a second gripping portion 5 that is disposed between the first gripping portions 3 and 4, and a manually operated opening / closing mechanism. 6.

  The grip 2 is formed by stacking and integrating the upper plate 2a, the middle plate 2b, and the lower plate 2c shown in FIG. 3, and the first gripping portion 3 is formed at the tip of the upper plate 2a and the lower plate 2c of the grip 2. 4 is integrally formed. The first gripping portions 3 and 4 are wider than the grip 2 and have a structure in which n tooth grooves 7 that penetrate rearward are provided at a constant pitch on the front edge of each gripping portion. The positions of the tooth grooves 7 provided in the first gripping portions 3 and 4 and the installation pitch are the same, and the side surface 7a on one side of the tooth grooves 7 is aligned on a vertical surface.

  A guide groove 8 is provided between the first grip portions 3 and 4, and the second grip portion 5 is slidably inserted into the guide groove 8 as shown in FIG. The 2nd holding | grip part 5 has the nail | claw 5a made to oppose the side surface 7a of each tooth gap 7 in a front edge.

  In the illustrated transfer jig 1, the grip 2 and the first gripping portions 3 and 4 are formed of a metal that is difficult to deform (preferably a light metal such as aluminum) or a hard resin, while the second gripping portion 5 is made of an acrylic resin, The nail | claw 5a can be elastically deformed by forming with a phenol resin etc. When the claw 5a is thinned or the protrusion amount (length) of the claw from the front edge of the second grip portion 5 is increased, the elastic deformability is improved and the claw 5a is easily bent. However, since a certain gripping force is required, it is necessary to adjust by changing the size and length.

  The opening / closing mechanism 6 includes an operation lever 6 a, a power transmission element 6 b that transmits a force applied to the operation lever 6 a to the second grip portion 5, and an elastic body 6 c that applies a biasing force in the clamping direction to the second grip portion 5. It is configured in combination.

  The operation lever 6a is provided with a support pin 6d (see FIG. 1) standing on the base end side (near the boundary with the grip 2) of the first gripping portions 3 and 4, and supported by the support pin 6d so as to be swingable. Furthermore, this operation lever 6a is provided at a position where it can be held with one hand together with the grip 2.

The power transmission element 6b attaches the pin b- ₁ to the second gripping part 5 in the thickness direction and applies force to the pin b- _{1 from} the operation lever 6a. Fitting the sleeve _{b -2} on the outer periphery of the pin _{b -1} in the figure, although contacting the distal end of the operating lever 6a to the sleeve _{b -2,} sleeve _{b -2} is not essential.

In addition, the illustrated elastic body 6c is a tension spring, and the pin c- ₁ that is attached to the second gripping part 5 in the thickness direction and the pin c- ₂ that is fixedly attached to the first gripping parts 3 and 4 are attached. It is stretched between. As shown in FIG. 4, the first grip 3 and 4, the pin _{b -1,} the pin _b -1 accepting _{c -1,} the long holes to allow the movement in the width direction of the _{c -1} 3a and 4a are provided. The second grip portion 5, and provided with a long hole 5b to permit the movement in the width direction of the pin c _-2 accept pins c _-2, therefore, first for opening and closing the claw 5a 2 The movement of the grip portion 5 in the width direction is not hindered.

  The illustrated transfer jig 1 manually releases the clamp and clamps with the force of the elastic body 6c. The clamp is manually operated and the clamp is released with the force of the elastic body 6c. May be. Further, the upper plate 2a, the middle plate 2b, the lower plate 2c, and the first gripping portions 3 and 4 are integrally formed, and a guide groove 8 is provided therein, and the second gripping portion 5 is incorporated therein. Also good.

  Further, in order to stably hold the round shaft portion of the target article, as shown in FIG. 6, the gripping surface, that is, the facing surface between the side surface 7a of the tooth gap and the side surface 7a of the claw 5a is recessed in the opposite direction. It is preferable to increase the contact area with the round shank by using the rounded R surface. However, a target article whose gripped portion is a square axis is also conceivable, and it is preferable that a jig for transferring the article is provided with a flat gripping surface.

  As shown in FIG. 5, the transfer jig 1 configured in this way is held by an operator holding the grip 2 with one hand and holding the jig 1. In this state, the operation lever 6 a is gripped to open the claw 5 a. The 2nd holding part 5 is moved to a clamp point. The unclamped state is shown enlarged in FIG. In this state, the jig 1 is inserted from the side into the position of the front-row printed circuit board drill D aligned and stored on the transfer pallet P, and the n-th drill D in the front-row is received in the tooth groove 7 to be operated. When the lever 6a is opened and the second gripping part 5 is moved to the clamping point by the force of the elastic body 6c, the drill D that has entered the tooth groove 7 is shown in FIG. Between them. As a result, n drills D are held together. Thereafter, the n drills D lifted and grasped by the jig 1 are taken out of the transport pallet P, moved to the position of the dedicated case C as they are, and transferred to the accommodation holes of the dedicated case C.

  By this simple operation, for example, 10 small printed circuit board drills can be accurately transferred at one time, and the work efficiency is dramatically improved as compared with the manual transfer. Also, you don't have to hold the drill directly with your hands, so you won't get hurt or get dirty.

  The illustrated jig has a simple structure and can be manufactured at low cost. However, the scope of application of the present invention is that the clamp and unclamp operations are performed by an opening / closing mechanism having a power source, the supply point and transfer of the target article. A jig that moves the jig between the tip and the tip by providing a power-driven moving mechanism, the second gripping portion is fixed, the first gripping portions 3 and 4 are movable, and the first gripping portion 3 is moved by an opening / closing mechanism. It extends to jigs that are structured to move 4 simultaneously. Moreover, the target article to be transferred is not limited to a drill. If the size of the jig is changed, the test tubes and flasks can be moved between two points while maintaining the aligned state.

  The jig provided with the elastically deformable claw 5a is also suitable for positioning a plurality of target articles. FIG. 8 shows an example of a positioning jig. This positioning jig 11 has first gripping portions 13 and 14 having tooth grooves 17 arranged in parallel with a guide groove 18 in between, and has a claw 15 a that can be elastically deformed in the guide groove 18. The 2nd holding part 15 is incorporated so that sliding is possible. The slide guide portion 19 of the second gripping portion 15 includes a long hole 19a provided in the first gripping portions 13 and 14 and a pin 19b that guides the second gripping portion 15 with the long hole 19a. The opening / closing mechanism 16 that moves the portion 15 between the clamping point and the unclamping point employs a power-driven actuator, for example, an actuator that operates by fluid pressure or electromagnetic force, and is used by being installed at a fixed position.

  When this positioning jig 11 is used, the target article is, for example, a hard pipe, and even if the outer diameter of the gripped portion of the target article varies, the nail 15a that has previously generated the gripping force is elastic. Since it deforms and absorbs dimensional errors, all target articles are reliably positioned with reference to the side surface 17a of each tooth groove 17.

The perspective view which shows an example of the transfer jig of this invention FIG. 1 is an exploded plan view showing a part of the transfer jig of FIG. The figure which decomposes | disassembles and shows the component of the transfer jig of FIG. Sectional view along line XX in FIG. The perspective view which shows the use condition of the transfer jig of FIG. Diagram showing unclamped state Diagram showing the clamped state The perspective view which shows an example of the positioning jig of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Transfer jig 2 Grip 2a Upper board 2b Middle board 2c Lower board 3, 4, 13, 14 First holding part 5, 15 Second holding part 5a, 15a Claw 6, 16 Opening / closing mechanism 6a Operation lever 6b Power transmission element 6c Elastic bodies 7, 17 Gear grooves 7a, 17a Side surfaces 8, 18 Guide grooves 11 Positioning jig 19 Slide guide D Printed circuit board drill P Transport pallet C Special case

Claims (6)

  A first grip portion provided with a plurality of tooth grooves on one side at a constant pitch, and a second grip portion provided on one side with a nail that sandwiches the target article between one side surface of the tooth groove corresponding to each tooth groove A claw opening / closing mechanism for moving the first gripping part and the second gripping part relative to each other to move the claw toward and away from the side surface on one side of the tooth gap. A plurality of layers are arranged with the relative positions of each layer fixed so as to sandwich the gripping portion therebetween, and a plurality of aligned target articles are received in the tooth gap and the side surface of the tooth gap of the first grip portion and the second gripping portion This is a transfer jig that is gripped with a claw and can be moved to a target location while maintaining this gripping state.   The transfer jig according to claim 1, wherein the claw is made elastically deformable, and the position of the closed claw is corrected by elastic deformation of the claw.   A two-layer first gripping portion having the tooth groove on the front edge is integrally provided at the tip of the grip, a guide groove is provided between the first gripping portions of the two layers, and the second gripping portion is slid into the guide groove. The transfer jig according to claim 1 or 2, wherein the transfer jig is freely inserted and the claw is opened and closed by sliding the second gripping portion in the groove width direction of the tooth gap by the opening and closing mechanism.   An operation lever for swingably attaching the opening / closing mechanism to the first gripping portion, a power transmission element attached to the second gripping portion and displaced in the width direction of the tooth gap by the operation lever, and a second gripping portion The transfer jig according to claim 3, wherein the transfer jig is configured by an elastic body that urges the claw in a closing direction or an opening direction, and disposed at a position where the grip and the operation lever can be held together with one hand.   The transfer jig according to any one of claims 1 to 4, wherein one side surface of the tooth gap and a gripping surface of the claw are formed into a concave R surface so as to grip the round shaft portion of the target article.   A first grip portion provided with a plurality of tooth grooves on one side at a constant pitch and an elastically deformable nail that sandwiches the target article between one side surface of the tooth groove are provided on one side corresponding to each tooth groove. 2 gripping portions, and a claw opening / closing mechanism for moving the first gripping portion and the second gripping portion relative to each other to move the claw closer to and away from one side surface of the tooth gap. A plurality of layers are arranged with the relative positions of the respective layers fixed so that the portion sandwiches the second gripping portion, and a plurality of target articles are received in each of the tooth gaps, and the target articles are received in the tooth gaps of the first gripping section. A positioning jig that is gripped by the side surface of the second gripping portion and the claw of the second gripping portion and is collectively positioned based on the side surface of the tooth gap.

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