JP2003088825A - Tool for cleaning work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a work cleaning tool which can hold a small-sized chip-like work surely in such a state that the work is housed in a work housing part when the work is cleaned ultrasonically and in which the durability of a wire for preventing the work from deviating from the work housing part is enhanced. SOLUTION: This work cleaning tool 10 for cleaning the work 1 ultrasonically in the state housing in the tool 10 is constituted mainly of a main body 11 and a work deviation preventing member 12. The body 11 has several rows of the work housing parts 14 formed in the longitudinal direction for housing many works 1 in the erected states as groups 13 each having a long hole 15 penetrated vertically. The member 12 has a frame body 17 to be fit to the body 11 and wires 18 which are stretched between the front and back end plates 17a, 17b of the body 17 in the central positions of the respective groups 13 and have coils 24 in the vicinities of one of the end plates 17a, 17b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work cleaning jig for cleaning a work such as an optical component or an electronic component, and drying the work after the cleaning. The present invention relates to a workpiece cleaning jig suitable for accommodating a large number of objects and performing ultrasonic cleaning.

[0002]

2. Description of the Related Art Optical components, electronic components, and the like include, for example, those formed in a chip shape of several millimeters square. Such a chip-shaped component is generally processed into a chip component of a predetermined size by dicing after performing necessary processing and treatment in a state of a base material having a large size. In order to perform dicing, a base material is attached to a base plate or the like using an adhesive substance. Therefore, the cut chip components must be washed to remove sticky substances and other contaminants. In order to efficiently clean this type of chip-shaped component, a method is used in which a cleaning jig containing a large number of chip components is used and the cleaning jig is immersed in a cleaning tank. Moreover, by mounting an ultrasonic vibration device on the cleaning tank and cleaning the work while ultrasonically vibrating the cleaning liquid, so-called ultrasonic cleaning, the work is cleaned quickly and reliably.

In order to accommodate a large number of workpieces in a stable state, the cleaning jig is a plate-shaped member having a predetermined thickness and is formed with a large number of workpiece accommodating portions. By doing so, the work accommodating portion is generally formed. When performing ultrasonic cleaning, since the ultrasonic vibration device is usually arranged at the lower position of the cleaning tank, the work container is accommodated in an upright state, and at the same time, the lower part of the work container is accommodated. An opening for passing ultrasonic waves is formed at the position. As a result, the action of ultrasonic waves can be reliably exerted on the entire surface of the work, resulting in extremely high cleaning accuracy and cleaning efficiency for the work.

Since the work accommodating portion penetrates from the lower side to the upper side, buoyancy acts on the work in the work accommodating portion when the cleaning jig is immersed in the cleaning tank. If the specific gravity of the work is larger than that of the cleaning jig, it is not a special problem, but if the chip part is a very small size and is made of a material with a small specific gravity such as glass, ceramic, or synthetic resin, cleaning There is a possibility that the work may float up and come out of the work accommodating portion while the jig is immersed in the cleaning liquid. Further, in the case of a lightweight and small chip component, the work may jump out of the work accommodating portion due to the influence of ultrasonic vibration during cleaning. From the above, as a measure to prevent the work from deviating from the work storage part, it is conventionally practiced to insert the work into each work storage part provided in the cleaning jig and then cover the work with a cover sheet such as cloth. It was being appreciated.

[0005]

By the way, as described above, when a cover sheet is used, contaminants separated from the work by the action of ultrasonic waves are contained inside the cover sheet and float around the work. It will remain as it is. As a result, the concentration of fouling around the work becomes high, and there is a possibility that the fouling may attach to the work during cleaning and when the cleaning jig is pulled out from the cleaning tank. It is not possible to perform the cleaning accuracy of. Further, since the cover sheet made of cloth or the like has high hygroscopicity, a large amount of cleaning liquid is brought out when the cover sheet is taken out from the cleaning tank, and there is a problem that the cleaning liquid is wasted. .

If the work is accommodated in each work accommodating portion and then the wire is provided above the work accommodating portion, it is possible to prevent the work from deviating from the work accommodating portion due to buoyancy or vibration. From the viewpoint of preventing deviation of the work, it is desirable to bring the wire into contact with the work. However, there is an inconvenience that the abutting portion of the work on the wire is not cleaned and uneven cleaning occurs. Therefore, the wire will be separated from the work, but if the distance is too large, the stability of the work will be impaired, so the wire will not be in contact with the work, and will be in a position close to the work. Need to be placed. Then, in order to prevent the wire from coming into contact with the work due to slack or the like, the stretched wire must have sufficient tension.

A large number of work accommodating parts are provided in the cleaning jig, and these work accommodating parts are constructed as a work accommodating part group arranged at a predetermined pitch interval. The work accommodating part group is provided in a plurality of rows. Due to the relationship, it is necessary to stretch multiple wires. Therefore, it is difficult to give the same tension to all the wires. Moreover, if the wire is stretched while tension is applied, the wire may be broken due to vibration generated during ultrasonic cleaning. If a thick wire is used to provide high strength, it will not be broken by the action of ultrasonic waves. However, the work has to be dried after the cleaning jig is dipped in the cleaning tank to be cleaned, and the work is dried while being housed in the cleaning jig. In order to dry quickly, for example, steam drying or the like is performed, but when a wire having a large wire diameter is used, the work is dried before the wire. As a result, there is a possibility that liquid may drip from the wire after the work is dried and adhere to the work, which causes a problem such as generation of stains due to redeposition of the cleaning liquid on the work after drying.

From the above points, when the wire is laid over the work accommodating portion to prevent the work from deviating, a thick wire cannot be used in order to make the heat capacity smaller than that of the work. When the wire is laid around under tension, the problem of wire breakage due to the action of ultrasonic waves cannot be avoided.

The present invention has been made in view of the above points, and it is an object of the present invention to ensure that when a chip-like work having a small size is cleaned by ultrasonic cleaning or the like, it is surely placed in the work accommodating portion. It is to be able to hold it in the housed state.

[0010]

In order to achieve the above-mentioned object, the present invention has a plate-shaped member having an opening vertically extending therethrough, and a plurality of work accommodating portions at positions including the opening forming portion. From a cleaning tool body in which a plurality of provided work accommodating section groups are formed, and a work retaining member that is detachably connected to the cleaning tool body and that prevents the work accommodated in each of the work accommodating sections from deviating. The work retaining member is connected to a frame body fitted around the cleaning tool body and both ends of the frame body, and corresponds to the approximate center of each of the work accommodating section groups of the cleaning tool body. And a wire stretched so as to pass through a position where each of the wires is shorter than the insertion depth of the work into the work accommodating portion when the work is accommodated in each of the work accommodating portions. Only separated Arranged positioned, and is intended to its characterized in that said a structure comprising a tension-absorbing portion to at least a portion of each wire.

When ultrasonically cleaning a work mounted on the main body of the cleaning tool, since the ultrasonic vibration device is arranged at the lower position of the cleaning tank, ultrasonic waves must be passed from the lower side of the main body of cleaning tool. I won't. Therefore, at the position of the work accommodating portion, an opening that penetrates up and down is formed in the cleaning tool body, but the work accommodating portion group includes a work accommodating portion that accommodates the work and an opening that serves as a passage for passing ultrasonic waves from below. Shall be included. As a specific configuration of the work accommodating portion group, elongated holes are formed in the longitudinal direction of the cleaning tool body, and concave portions are provided so as to project left and right along the elongated holes at a predetermined pitch interval. Therefore, the long hole becomes an opening through which ultrasonic waves pass,
The work accommodating portion is formed by the left and right recesses. here,
In consideration of the stability of the work, the recess serving as the work storage portion enlarges the contact portion between the inner surface of the recess and the work. Therefore, the concave portion should be straight in the vertical direction, or the tip side should be narrowed. On the other hand, if importance is attached to the cleaning property, the contact portion of the work with the work storage portion is made as small as possible. For this purpose, the recess is formed in a tapered shape.
That is, the tapered recesses facing each other are formed as inclined surfaces that narrow downward toward the connecting portion side to the elongated hole, and the end walls of the left and right tapered recesses are located between the end walls at the positions closest to each other. The interval is narrower than the width of the work. Further, in order to allow the ultrasonic waves to pass through more efficiently, the widened portion is provided so as to widen the width on the lower side of the continuous portion of the elongated hole with each tapered concave portion. Furthermore, in order to minimize the contact area between the work accommodating portion and the work, if the end wall of each tapered recess is curved in a concave shape in the axial direction of the elongated hole or has a V-shape, the corners of the work can be reduced. Only the corners come into contact with the wall surface of the work accommodating portion, and the contact area is minimized.

The tension absorbing portion of each wire forming the work retaining member can be formed as a spring portion provided on at least one end side of the wire. Then, each wire is formed of a wire material having a spring property, and if one end side is formed by winding it into a coil shape over a predetermined length, a tension absorbing portion is formed on the wire itself,
The wire and the tension absorbing portion are composed of one component. Alternatively, a member having a spring property may be attached to the frame of the work retaining member, and the end of the wire may be attached to this member. Here, since the tension absorbing portion is composed of a spring, a predetermined tension acts in a stretched state to prevent loosening, but the wire is attached so as to have a room for expansion and contraction. As a result, even if ultrasonic vibration acts on the wire, the spring part exerts a cushioning effect to absorb the vibration, and stress is concentrated on a part of the wire, especially at the end of the wire, resulting in disconnection. There is no fear of

If a spring is formed by forming a coil at the end of the wire, the work cannot be placed at the lower position of this coil. Therefore, an interval adjusting member is provided in the vicinity of one end side of the frame body that constitutes the work removal preventing member, and this interval adjusting member is brought into contact with the one end side surface when the cleaning tool body is fitted into the frame body. And position. Then, the coil formed on each wire may be arranged in the space between the gap adjusting member and the end of the frame. Here, if the dimensions of the cleaning tool body and the work retaining member are accurately formed, the spacing adjusting member may be fixedly arranged, but in the case where the dimensions vary, etc., It is desirable to be able to adjust the placement position.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. First, FIG. 1 shows a state in which a work cleaning jig is separated and an external appearance of the work, and FIG. 2 is a plan view in a state in which the work cleaning jig is accommodated. In these figures, 1 is a work, and this work is, for example, a few millimeters square, and is composed of thin plate-like chip parts, and its material is comparatively such as glass, ceramics, synthetic resin, etc. It has a low specific gravity. The work 1 is obtained by dicing the base material into chips. Therefore, cleaning is performed to remove sticky substances such as wax used at the time of dicing and cutting dust and other contaminants at the time of dicing.

While the work 1 is contained in the cleaning jig 10, as shown in FIG. 3, the work 1 is immersed in an ultrasonic cleaning tank 2 containing a cleaning liquid, and ultrasonic waves are installed at a lower position of the tank. The cleaning liquid is ultrasonically vibrated by the vibrating device 3 to remove the contaminants from the surface of the work 1 for cleaning.

The cleaning jig 10 is generally composed of a cleaning tool body 11 and a work retaining member 12.
A large number of workpieces 1 are accommodated in the cleaning tool main body 11 in an upright state. For this reason, the cleaning tool main body 11 is a flat plate-shaped member having a rectangular shape (may be any other shape such as a square), and the work accommodating portion group 13 is provided in a plurality of rows in the longitudinal direction. . In the work accommodating section group 13, the work accommodating sections 14 for accommodating the above-mentioned chip-shaped work 1 in an upright state are formed at a constant pitch interval. Further, the work accommodating portion group 13 has an elongated hole 15 for allowing ultrasonic waves to pass from the lower side over the entire length thereof.

The work accommodating portion 14 has tapered recesses 14L and 14R formed so as to project to the left and right sides of the elongated hole 15.
Composed of. The tapered recesses 14L and 14R have a width dimension slightly larger than the thickness of the work 1. As shown in FIG. 4 and FIG. 5, the tapered surfaces of the tapered recessed portions 14L and 14R facing each other are curved in a concave shape in the axial direction of the elongated hole 15, and both tapered surfaces are on the surface side. Are inclined so that they become closer to each other as they become deeper, and the narrowest part thereof is narrower than the length dimension of the work 1. Work storage unit 1 including left and right tapered recesses 14L and 14R
4 has a depth up to a substantially intermediate position in the thickness direction of the cleaning tool main body 11. Further, at the position where the elongated hole 15 is continuous with the work accommodating portion 14, the width of the elongated hole 15 is equal to the width dimension of the narrowest portion between the opposing tapered surfaces,
On the back side of the, the width is expanded to form a widened portion 15a.

As described above, the cleaning tool main body 11 in which the work accommodating section groups 13 are formed over a plurality of rows can be made of metal or the like, but in consideration of weight reduction and ease of processing, It is made of synthetic resin such as Delrin or fluororesin. Further, the work accommodating portion group 13 can be formed by cutting, or may be formed by a forming means. A leg plate 16 made of a metal plate is screwed to the front and rear end surfaces of the cleaning tool body 11.
The leg plate 16 projects downward from the lower surface of the leg plate 16 when attached to the cleaning tool main body 11, and a pair of left and right legs that engage with a lifting mechanism for immersing the ultrasonic cleaning tank 2 in the projecting portion. The cutout 16a is provided.

The work retaining member 12 is the cleaning tool main body 11.
A frame body 17 that is fitted to the frame body 17, and is made of a metal having a plurality of spring properties between the front and rear end plates 17a and 17b of the frame body 17,
For example, a wire 18 made of SUS or the like is wound around. The wire 18 is for preventing the work 1 inserted in the work accommodating portion 14 from coming out upward.
Therefore, the wire 18 passes through substantially the central position of the work accommodating section group 13 when the work retaining member 12 is fitted to the cleaning tool body 11. Moreover, as is clear from FIG. 4, the wire 18 is provided so as not to contact the work 1 at the upper position of the work 1 accommodated in the work accommodating portion 14. And wire 1
The distance between the work piece 1 and the work piece 8 is not more than the dimension of the depth of insertion of the work piece 1 into the work piece storage part 14.

The wire 18 is detachably attached to the work retaining member 12. For this reason, as shown in FIG.
9 is formed. Here, the illustrated engagement loop 19
Has a C-shape, but can be a closed loop. Then, as shown in FIG. 7 and FIG.
The wire insertion holes 20, 2 are formed in the front and rear end plates 17a, 17b.
1 is provided and the fastening loops 1 at both ends of the wire 18 are provided.
9 is led out to the outside from these wire insertion holes 20 and 21, and is attached to the frame body 17 so that the stopper rod 22 is inserted into the engagement loop 19. Stopper rod 2
As shown in FIG. 9, 2 is a rod having a substantially L-shape, and the bent portion 22a thereof is adapted to be inserted into a mounting hole 23 formed in the end plates 17a and 17b. Further, the stopper rod 22 is formed with a circumferential groove 22G for positioning the engagement loop 19 of the wire 18.

The wire 18 must be in a tensioned state when both the fastening loops 19 are fastened to the stopper rod 22. The wire 18 is an end plate 17
Although it is attached to both stopper rods 22 fixed to a and 17b, since there is a dimensional error of the wire 18,
It is extremely difficult to assemble all the wires 18 in a state in which a constant tension is applied so that all the wires 18 are not loosened or excessive tension is applied. Therefore, a coil 24 is formed at a position adjacent to the engaging loop 19 on one end side of the wire 18 so as to extend a predetermined length, and the coil 24 has a spring property. And the wire 18
When the coil 24 is stretched between the end plates 17a and 17b of the frame body 17, the coil 24 is pulled, that is, the biasing force of the spring is applied. As a result, even if there is some dimensional error or the like in each wire 18 and its mounting portion, it is not absorbed by the coil 24 and the wire 18 is not loosened or excessively tensioned. Moreover, the spring force of the coil 24 is set so that the wire 18 can be expanded and contracted even when the wire 18 is stretched.

The coil 24 is provided near one end of the wire 18.
Therefore, the work accommodating portion 14 cannot be provided at the portion where the coil 24 is located. For this reason, the lengthwise dimension of the cleaning tool main body 11 is made shorter by the length of the coil 24 than the inside of the frame body 17 that constitutes the work retaining member 12. Therefore, when the work retaining member 12 is fitted into the cleaning tool main body 11, the cleaning tool main body 11 is brought into contact with the end plate 17a side of the frame body 17 and a space is provided on the end plate 17b side for installation. Be done.

From the above, the work retaining member 12
The cleaning tool main body 11 must be positioned inside. For this purpose, the left and right side plates 17c of the frame body 17,
A space adjusting member 25 is attached to 17d. As shown in FIG. 10, the space adjusting member 25 is bent in an L-shape including a mounting plate portion 25a provided with a screw hole and an operating plate portion 25b bent approximately 90 ° with respect to the mounting plate portion 25a. It is made of a metal plate. Further, the side plates 17c and 17d of the frame body 17 are formed with a pair of slits 26 and 26 which are elongated in the longitudinal direction at the upper and lower positions thereof. Therefore, the gap adjusting member 25 is fixed so that its position can be adjusted in the front-rear direction by screwing the set screw 27 through the slit 26 in a state where the mounting plate portion 25a is in contact with the side plates 17c and 17d. . As a result, the cleaning tool body 11
Is positioned between the operating plate portion 25b of the space adjusting member 25 and the end plate 17a of the frame body 17.

In order to accurately position the cleaning tool main body 11 relative to the frame 17, the spacing adjusting member 25 needs to be brought into contact with the leg plate 16. However, in order to dry the work 1 after cleaning, when the frame 17 is incorporated in the cleaning tool main body 11 and steam drying using heated steam is performed, the cleaning tool main body 11 and the frame body are thermally expanded. 17
And will come into close contact with each other, and the frame body 17 may not be removable unless it is sufficiently cooled after cleaning. In order to prevent this, the space adjusting member 25 is provided in the frame body 1.
It should be attached diagonally to 7. That is, when the frame body 17 is fitted into the cleaning tool main body 11, the upper end portion of the interval adjusting member 25 abuts the leg plate 16, and the lower portion side is the leg plate 1.
Incline so that it is separated from 6. As a result, when the frame body 17 cannot be separated from the cleaning tool main body 11 due to thermal expansion, when a compressive force is applied in a direction in which the leg plate 16 and the end plate 17b of the frame body 17 are brought close to each other, the space adjusting member 25 elastically deforms. Then, the cleaning tool main body 11 can be separated from the frame 17.

In the frame 17 of the work retaining member 12, front and rear end plates 17a and 17b are provided with projecting plates 28 and 29 which are further connected obliquely upward. And, between these both overhanging plates 28 and 29, 2
The handle bar 30 of the book is erected. The handle rod 30 is for the operator to hold with a hand. The wire 18 is arranged above the mounting position of the wire 18 so that the grip rod 30 can be held without touching the wire 18. The handle bar 30 can also be used as a means for stacking the cleaning jigs 10. In this case, the notch 16a provided on the leg plate 16 is engaged with the handle rod 30.

The cleaning jig 10 assembled by accommodating the work 1 in each work accommodating portion 14 of the cleaning tool body 11 and mounting the work retaining member 12 has an asymmetric structure in the front-rear direction. That is, the cleaning tool main body 11 is biased toward the end plate 17a side of the frame body 17, while the gap adjusting member 25 is attached to the end plate 17b side. Since the interval adjusting member 25 is made of metal and is heavier than the cleaning tool main body 11 made of synthetic resin, the position of the center of gravity of the whole is a position deviated from the center position to the end plate 17a side. Therefore, in order to adjust the position of the center of gravity to the central position of the cleaning jig 10, a cutout portion is provided in the projecting plate 29 on the end plate 17b side, and the end plate 17 is also provided.
The length of the slit 26 located on the side closer to b is increased, the weight of the end plate 17b side is reduced, and the position of the center of gravity of the whole is adjusted to be substantially the center position.

The present embodiment is configured as described above, and the cleaning tool main body 11 and the work retaining member 12 are provided.
The workpieces 1 are inserted into the large number of workpiece accommodating portions 14 provided in the cleaning tool main body 11 by separating them. Here, the work 1 is accommodated in a state of standing in each of the work accommodating portions 14, and at this time, the contact portion between the work 1 and the work accommodating portion 14 is substantially the four corner portions on the lower side. Only the entire surface is exposed and exposed to the cleaning liquid.

When the work 1 is mounted in all the work accommodating portions 14, the work removal stopper 12 is attached to the cleaning tool main body 11.
Are assembled so as to fit. Since the work retaining member 12 is provided with an interval adjusting member 25 for positioning the cleaning tool main body 11, the cleaning tool main body 11
Can be positioned by the operating plate portion 25b and the end plates 17a and the side plates 17c, 17d of the frame body 17, and in the assembled state, the cleaning tool body 11 is misaligned in the work retaining member 12 without notice. That's not it. Further, when the periphery of the cleaning tool main body 11 is assembled so as to be pressed so that a frictional force acts between the operating plate portion 25b, the end plate 17a of the frame body 17 and the side plates 17c, 17d, the cleaning tool main body is obtained. The work piece 11 is stably held in a state of being incorporated in the work piece retaining member 12.

The cleaning jig 10 is inserted into the ultrasonic cleaning tank 2 equipped with the ultrasonic vibration device 3 by using an appropriate lifting mechanism or the like. In the process of this immersion, a relative liquid flow occurs in the elongated hole 15 provided in the cleaning tool main body 11 in the direction of rising from below. Here, the work 1 accommodated in the work accommodating portion 14 is lightweight such as glass, ceramics, and synthetic resin, and has a small chip shape such as a few millimeters square. Tries to float up from the work accommodating portion 14 due to the action of buoyancy. However, since the wire 18 is stretched over the work retaining member 12, there is no possibility that the lifted work 1 is restricted by the wire 18 and deviates from the work accommodating portion 14. Moreover, since the wire 18 is arranged at the approximate center position of the work 1, even if the work 1 is slightly tilted, the wire 18 reliably exhibits its deviation prevention function.

The cleaning liquid in the ultrasonic cleaning tank 2 is vibrated by the ultrasonic vibrating device 3. Therefore, this vibration acts on the work 1 inserted into the work accommodating portion 14, and the various kinds of fouling substances adhering to the work 1 are separated from the surface by the vibration energy. As a result, in addition to the action of the cleaning liquid, the work 1 is swiftly and surely removed by the action of vibration by ultrasonic waves, the stains of the adhesive substance and other organic substances, and the stains of fine-grained inorganic substances. Moreover, the work 1 is substantially 4 times larger than the wall surface of the work accommodating portion 14.
Since only the corners of the parts are in contact with each other and the work 1 vibrates by the action of the ultrasonic waves, the vibrations of the cleaning liquid and the ultrasonic waves are also transmitted to these corners. As a result, the work 1 is cleaned extremely efficiently and highly accurately.

The ultrasonic vibration device 3 is arranged at a lower position of the ultrasonic cleaning tank 2, and the ultrasonic waves are transmitted from the lower side to the upper side. The vibration energy of the ultrasonic waves causes the work 1 to move in a direction in which the work 1 is pushed up from the work accommodating portion 14. However, the wire 18 arranged at the upper position of the central portion of the work 1 has a function of preventing the wire 18 from escaping from the work accommodating portion 14 of the work 1. Therefore, strong ultrasonic waves can be generated by the ultrasonic vibration device 3, and the cleaning efficiency and cleaning accuracy are further improved. The wire 18 is separated from the work 1 housed in the work housing portion 14, but when the work 1 vibrates, the wire 18
Will collide with. However, since the coil 24 is formed at the end of the wire 18, the impact at the time of this collision is mitigated, and the work 1 is not likely to be damaged or deformed.

The wire 18 is in a tensioned state and is stretched over so as not to cause slack.
The tension of the wire 18 is given by the spring force of the coil 24, and the coil 24 has a spring property even in a stretched state, that is, the wire 18 retains elasticity and easily expands and contracts when an external force is applied. It is stretched to a ready state. Therefore, even if a strong ultrasonic wave is generated from the ultrasonic vibration device 3 in the ultrasonic cleaning tank 2 and the wire 18 vibrates by the ultrasonic wave, the coil 24 expands and contracts to absorb the tension. Therefore, it is possible to prevent the wire 18 from being subjected to excessive tension. As a result, even if the work 1 has a thin wire diameter that is the minimum necessary for exhibiting the function of preventing the work 1 from deviating from the work accommodating portion 14, there is no risk of disconnection or the like.

As described above, the coil 24 is the wire 18
In addition to the function of adjusting the tension when the work is attached to the work retaining member 12, it also has a function of buffering the collision of the work 1 and a function of preventing disconnection of the wire 18 itself during ultrasonic vibration. Demonstrate. The coil 24 performs these three functions, but it is only necessary that the wire 18 does not loosen in the state where it is attached to the work retaining member 12, so the spring constant of the coil 24 is subject to this condition. , Make it as large as possible. As a result, the buffer function for the work 1 and the wire 1
The disconnection preventing function of 8 itself becomes extremely high.

As described above, by forming the coil 24 on one end side of the wire 18, a wire having an extremely small wire diameter can be used. However, if the wire diameter of the wire 18 is made thin as described above, a drying step after cleaning is performed. Is extremely advantageous in. Here, depending on the material and structure of the work 1, the drying can be steam drying using steam, for example. Since the wire 18 is located above the work 1, there is a possibility that liquid may drip from the wire 18. Even if the work 1 is not dried or drops of droplets from the wire 18 during the drying process, it does not cause a big problem. However, if the work 1 is dried and the drops are attached, it remains as a stain after the work 1 is dried. It will be. Therefore, at least the wire 18 must be dried before the work 1 is completely dried. If a wire 18 with a small wire diameter is used,
Since the heat capacity is small, quick drying can be obtained,
The drying of the wire 18 is completed before the work 1 is dried. As a result, after the work 1 is dried, the wire 1
No liquid dripping from 8 occurs.

As described above, when performing steam drying, the entire cleaning jig 10 is heated. Therefore, as a result of the thermal expansion of the cleaning jig 10, the cleaning tool body 11 may not be detachable from the work retaining member 12. Therefore, the space adjusting member 25 is formed of a member having a spring property, and the operating plate portion 25b thereof is 90 times larger than the mounting plate portion 25a.
The mounting plate 25a is bent to form an obtuse angle of more than °.
If the tip end of the cleaning tool body is configured to contact the end surface of the cleaning tool body 11, the cleaning tool body 11 can be easily moved by pushing the leg plate 16 in a direction in which the operating plate portion 25b of the interval adjusting member 25 is bent after drying. In addition, it can be separated from the work retaining member 12.

In order to stretch the wire 18 on the work retaining member 12, the engaging loops 19 at both ends of the wire 18 are inserted into the stopper rod 22, and therefore the wire is inserted into both end plates 17a and 17b of the frame body 17. Holes 20 and 21 are provided. The wire insertion hole 20 provided in the end plate 17a is a slit-shaped hole because only the engaging loop 19 needs to pass through. On the other hand, on the side of the end plate 17b, since the coil 24 must pass through together with the engagement loop 19, the wire insertion hole 21 is a circular opening. Then, the engaging loops 19 of the wires 18 are sequentially led out from the wire insertion holes 20 and 21 of the end plates 17a and 17b,
After inserting the stopper rod 22, the bent portion 22 a of the stopper rod 22 is inserted into the mounting hole 23. Since the wire 24 is provided with the coil 24, even if the coil 24 is extended when the wire 18 is attached, an unreasonable force does not act on the wire 18. Therefore, the wire 18 can be attached to the work retaining member 12 very easily.

As described above, the wire 18 is formed integrally with the coil 24, and the wire 18 and its tension absorbing portion are constituted by a single component. Therefore, the number of components is reduced and the assembly is easy. Become. Moreover, since the tension absorbing portion is configured as the coil 24, not only the function of absorbing the tension at the time of stretching the coil 24 but also the function of buffering the collision of the work 1 and the function of preventing disconnection at the time of ultrasonic vibration are exerted. However, the wire and the tension absorbing part do not necessarily have to be integrally formed. For example, as shown in FIG. 11, a substantially U-shaped leaf spring 40 is fixed to the front and rear end plates of the frame by means such as screwing, and a notch or a notch is formed on the free end side of the leaf spring 40. The engaging portion 41 formed of a through hole is formed in advance, and the engaging loop 19 at the end of the wire 18 is formed by the engaging portion 4
It can also be attached by hooking it on 1. Even with this configuration, the leaf spring 40 can exert the tension absorbing function, the buffering function, and the disconnection preventing function.

[0038]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, when a chip-like work having a small size is cleaned by ultrasonic cleaning or the like, the work can be securely held in the work housing portion, and the work can be securely held. There is an effect that the durability of the wire for preventing the work from departing from the housing portion is improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a work cleaning jig shown together with a work.

FIG. 2 is a plan view of a workpiece cleaning jig showing a state in which a workpiece is stored.

FIG. 3 is a schematic configuration diagram of a work cleaning device.

FIG. 4 is an enlarged plan view of a work accommodating portion.

5 is a sectional view taken along line XX of FIG.

FIG. 6 is an overall configuration diagram of a wire.

FIG. 7 is a front view of a work retaining member.

FIG. 8 is a rear view of the work retaining member.

FIG. 9 is a structural explanatory view showing a wire fastening structure.

FIG. 10 is a structural explanatory view of a space adjusting member.

FIG. 11 is a structural explanatory view showing another example of the tension absorbing portion provided on the wire.

[Explanation of symbols]

1 work 2 ultrasonic cleaning tank 3 Ultrasonic vibration device 10 Cleaning jig 11 Cleaning tool body 12 Workpiece retaining member 13 Work storage group 14 Work storage section 14L, 14R Tapered recess 15 Long hole 15a Widened part 17 Frames 17a, 17b End plates 17c, 17d side plate 18 wire 19 fastening loop 24 coil 25 spacing adjusting member 40 leaf spring 41 engaging part

Claims (7)

[Claims] 1. A cleaning tool main body comprising a plate-shaped member having an opening vertically extending therethrough, and a plurality of work-accommodating-section groups each having a plurality of work-accommodating sections at a position including the opening-forming section. The work removal stopper member is detachably connected to the cleaning tool body and prevents the work stored in each of the work storage portions from deviating. The work removal prevention member is fitted around the cleaning tool body. And a wire connected between both ends of the frame body and stretched so as to pass through a position corresponding to the approximate center of each of the work accommodating portion groups of the cleaning tool body, Each wire is arranged at a height position separated from the work by a distance shorter than an insertion depth of the work into the work storage portion when the work is stored in each work storage portion, and at least each wire is part Work cleaning jig, characterized in that it has a structure comprising a tension-absorbing portion. 2. The work accommodating portion group has elongated holes extending in the longitudinal direction of the cleaning tool body, and the tapered concave portions are projected to the left and right sides along the elongated hole at a predetermined pitch interval. Between the two end walls at the positions where the end walls of the left and right tapered recesses are closest to each other, and the tapered recesses facing each other are formed as inclined surfaces that narrow downward toward the connecting portion side to the elongated hole. The width of the work is narrower than the width of the work to form each of the work accommodating portions, and the lower side of the continuous portion of the elongated hole with each of the tapered recesses is a widening portion. The jig for cleaning a work according to claim 1, wherein the jig is configured to open on the back surface of the cleaning tool body. 3. The jig for cleaning a work according to claim 2, wherein the end wall of each tapered concave portion is configured to be concavely curved in the axial direction of the elongated hole. 4. The work cleaning jig according to claim 1, wherein the tension absorbing portion of each wire is a spring portion provided on at least one end side of the wire. 5. The workpiece cleaning jig according to claim 4, wherein the spring portion is formed by forming a coil on one end side of the wire over a predetermined length. 6. An interval adjusting member is provided in the vicinity of one end side of the frame body, and the interval adjusting member is configured to contact the side surface on one end side when the cleaning tool body is fitted into the frame body. The work cleaning jig according to claim 5, wherein the coil formed on each wire is arranged in a space between the space adjusting member and the end of the frame. 7. The frame body is provided with the space adjusting member, so that a weight balance portion is formed in order to prevent the center of gravity from shifting to the space adjusting member mounting side. The jig for cleaning a work according to claim 6, which is characterized in that.