TW201330976A - Method for deburring core members of electronic components, and device therefor - Google Patents

Abstract

Provided are a method for reliably deburring members of small electronic components in large quantities at a time so as not to cause cracking and chipping in the members, and a device therefor. A deburring method for removing protrusion-shaped burrs generated in gaps between a plurality of flanges of a core member produced from bulk ceramics and provided with the plurality of flanges. First, a large number of core members are put into a closed-end cylindrical tumbler having an opening at one end and closed at the other end. Then, the large number of core members are stirred by rotating the tumbler. A jet of gas in which injection materials smaller than the gaps between the flanges is mixed is injected toward the protrusion-shaped burrs generated in the gaps between the plurality of flanges of at least the core members through the opening. Thereafter, the injection materials are discharged to the outside of the tumbler through a through-hole provided in the wall surface of the tumbler.

Description

Deburring processing method for core member of electronic component and device thereof

The present invention relates to a method and apparatus for surface treatment of a large number of components of a small electronic component such as a capacitor, an inductor, a semiconductor IC, a sensor element, and the like. More specifically, the method and apparatus for deburring a core member of an electronic component. Also included in the electronic component are members of wafer-type electronic components such as wafer resistors or wafer capacitors or wafer coils.

Conventionally, in the manufacture of parts for a DC-DC converter (voltage conversion device) for operation such as a liquid crystal display, after molding, mold forming, deburring, winding winding, and resin molding of the exterior portion are performed. Additional external electrodes. The above-described deburring is performed in order to prevent the winding from being cut by the remaining burrs in the winding winding step of the next step.

In order to perform this deburring, it is known to perform barrel grinding on the surface of the core member of the electronic component. However, in the barrel polishing, the workpiece to be processed and the medium are placed in the rotating cylinder, and water, abrasive grains, and an auxiliary agent are further placed as needed to cause the inside of the rotating cylinder to be in a flowing state to perform surface treatment of the workpiece to be processed.

However, in the barrel type polishing apparatus, it is necessary to separate the workpiece to be processed from the medium by hand after the completion of the polishing, and there is a problem that it cannot be handled in a large amount and once. Moreover, in the case of using water, there is a problem that the water treatment equipment after grinding is required. Furthermore, there will be gaps in the components that become smaller and cannot be burred The problem.

Therefore, it is considered to use a bead hitting device. Japanese Laid-Open Patent Publication No. Hei 11-347941 (Patent Document 1) discloses a method of injecting a permanent magnet having a surface treatment film on a surface of a magnet into a drum type cylindrical portion of a rolling blasting machine or a skirt type cylindrical portion of a skirt type blasting machine. The barrel is rotated while simultaneously spraying the steel ball on the permanent magnet, thereby peeling off the surface treatment film of the surface of the magnet.

Further, in the invention of Patent Document 1, the rotational speed of the tubular portion is 2 to 15 rpm, the average particle size of the steel ball is 0.18 mm to 0.50 mm, and the average hardness of the steel ball is 40 to 50 HRC, which is projected on the steel ball of the R-Fe-B permanent magnet. The angle is 40°~90°, and the projection speed is 50m/sec~80m/sec.

However, if the tubular deburring method disclosed in Patent Document 1 is applied to a member of a plurality of smaller electronic parts, the members collide with each other frequently or with a strong impact force. Therefore, a large number of cracks or gaps are generated in the part to be processed.

Further, the steel ball disclosed in Patent Document 1 has an average particle size of 0.18 mm to 0.50 mm, and the steel ball has a larger gap than the flange, so that the steel ball cannot enter the gap of the flange. Therefore, there will be problems that cannot be burred.

Further, in the bead blast processing apparatus of Japanese Laid-Open Patent Publication No. 2001-341075 (Patent Document 2), since a tubular cylinder formed of a mesh is used, only a member having a larger mesh size can be handled. For example, the mesh of the first embodiment of Patent Document 2 has a square shape of 5.1 mm on one side and a wire diameter of 1.0 mm, so that it is impossible to handle a member smaller than 5 mm square. In order to deal with the components of smaller electronic parts, it is also considered to reduce the size of the mesh, but there is a problem that the probability that the sprayed material touches the mesh becomes high and cannot be effectively processed.

Further, in the bead processing apparatus of Patent Document 2, each of the projection nozzles has an appropriate swing angle in the longitudinal direction of the cylindrical cylinder. Therefore, in order to uniformly and efficiently project the material for all the objects in the cylinder having a longer diameter than the projection range in the longitudinal direction, it is premised that a plurality of projection nozzles are provided for one cylindrical cylinder. If this is not the case, the projection from the portion outside the projection range becomes insufficient.

Further, in Patent Document 2, for the purpose of removing the oxide layer generated on the surface of the permanent magnet, cleaning the surface, and hitting the steel bead for the surface treatment film, the deburring of the member of the smaller electronic component is not expected.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a deburring method and apparatus for performing a large number of deburring of components of a small electronic component at a time without causing cracks in the component.

In order to achieve the object of the present invention, the burring method according to the first aspect of the present invention is a method of removing a convex burr generated by a core member made of a block-shaped ceramic having a plurality of flanges and a core portion in a gap between the plurality of flanges. A step of: placing a plurality of bottomed cylindrical drums having an opening at one end and closing the other end into a plurality of core members; rotating the drum to agitate the plurality of core members; and penetrating the opening a step of injecting, by the embossing of the convex portion formed by the gap between the plurality of flanges, a pulverization of a gas having a smaller material than the gap of the flange; and The jetted material is discharged from the through hole provided in the wall surface of the drum to the outside of the drum.

According to the present invention, the deburring of the members of the smaller electronic parts can be performed in a large number and at one time without causing cracks in the cracks of the members. Further, the shot material that is ejected toward the inside of the drum is discharged from the through hole provided in the wall surface to the outside of the drum after the burring.

In the second aspect of the invention, the specific gravity of the spray material is 1.0 to 3.0, the average diameter of the spray material is 0.02 to 0.08 mm, and the injection pressure of the spray jet is 0.03 MPa or more and 0.15 MPa or less.

According to the present invention, since the specific gravity and the average diameter of the spray material are small and the injection pressure is also low, cracks or notches are formed in the members of the electronic component.

In the third aspect of the invention, the distance from the opening of the nozzle tip of the jet in which the jet of the jet material is mixed to the core member made of the block ceramic is 200 mm or more and 500 mm or less.

According to the present invention, the diffusion of the jet stream is not excessively large, and the burrs can be effectively removed. Moreover, no cracks or nicks are formed in the components of the electronic component.

In the fourth aspect of the invention, the difference in the rotational speed between the injection center and the injection outer peripheral portion in the injection range of the jet of the gas in which the injection material is mixed at the position of the core member made of the bulk ceramic is 32 mm/s or more and 64 mm/s. The core member is rolled in the following manner.

According to the present invention, cracks or notches are generated by the core members colliding with each other. On the other hand, it can effectively remove the burrs.

In the fifth invention, the hardness of the spray material is HV 1000 to 2,500.

According to the present invention, the core member composed of the block ceramic can be efficiently used Go to the raw edge.

In the sixth aspect of the invention, the core member made of the bulk ceramic has a gap of 0.3 mm to 0.8 mm in the flange, and is an inductor member or a coil member of an electronic component which is fired and manufactured by molding, and has a polygonal shape and It consists of alumina or tantalum carbide; it sprays a spray material with an average diameter of 0.02 to 0.08 mm.

According to the present invention, it is possible to eject a spray material of an appropriate size to the gap between the inductor member of the electronic component or the flange of the coil member, so that the burr can be efficiently removed.

According to a seventh aspect of the invention, the injection amount of the injection material is 0.2 to 0.8 kg/min, and the distance from the opening of the nozzle end of the jet in which the gas of the injection material is mixed to the core member made of the block ceramic is 200 mm or more and 300 mm. the following.

According to the present invention, the burring of the core member made of the block ceramic can be performed more efficiently.

Further, a deburring device according to an eighth aspect of the present invention is directed to a method for processing a burr of a core member, comprising: the plurality of rollers; at least one or more rotating mechanisms for rotating the plurality of rollers; and jetting A plurality of nozzle assemblies in which a jet of gas of the spray material is mixed; a plurality of through holes are formed in a wall surface on the outer circumference of the drum, and a stirring promotion member is provided on the inner wall of the cylindrical shape.

According to the present invention, the deburring of the members of the smaller electronic parts can be performed in a large number and at one time without causing cracks in the cracks of the members.

Furthermore, in the ninth invention of the present invention, the opening of the drum and the nozzle The components are opposed to each other, and the injection of the spray material is performed from the opening of the drum toward the burr of the convex portion of the core member in which the bottomed cylindrical drum is placed in the gap between the plurality of flanges.

According to the present invention, the deburring of the members of the smaller electronic parts can be performed in a large number and at one time without causing cracks in the cracks of the members.

Further, in the tenth invention of the present invention, the drum is inclined at an angle of 20 to 40 degrees.

According to the present invention, the drum is tilted at an angle of 20 to 40, whereby the stirring of the workpiece to be processed in the drum can be efficiently performed. That is, according to the present invention, the burr of the member of the smaller electronic component can be performed in a large amount and at one time without causing cracking of the member.

Further, in the eleventh aspect of the invention, the drum is a polygonal box having an opening at the upper portion or a cylindrical body having a bottom.

According to the present invention, a plurality of core members can be easily stirred by the rotation of the drum, and the burring can be performed efficiently.

According to a twelfth aspect of the present invention, in the nozzle assembly providing member which is movable when the nozzle assembly is ejected, the opening from the tip end of the nozzle which emits the jet of the gas in which the injection material is mixed is formed by the block ceramic. The distance of the core member is controlled within a predetermined range.

According to the present invention, since the distance from the opening of the nozzle leading end of the jet in which the jet of the injected material is emitted to the core member made of the bulk ceramic can be controlled, the burr can be removed at the optimum spray strength. Moreover, in the case where the injection strength is too strong, the injection distance can be made longer.

In a thirteenth invention of the present invention, the nozzle assembly is provided with a member, and the spray is After the end of the shot, the nozzle assembly is moved to replace the drum.

According to the present invention, the position of the nozzle assembly is moved by the nozzle assembly setting member each time the roller is replaced, whereby the roller can be easily replaced without removing the nozzle assembly.

Moreover, since the drum can be replaced, the flow change time can be made faster. That is, the next batch of processing preparation can be performed on the untreated drum.

According to a fourteenth aspect of the present invention, the nozzle assembly includes: an air nozzle for introducing compressed air into the nozzle holder to generate a negative pressure inside the nozzle holder; and a nozzle holder having an inside generated by the nozzle assembly a path through which the suction material of the negative pressure is attracted, a mixing chamber that mixes the spray material with the compressed air, and a spray nozzle for injecting the compressed air and the spray material mixed in the mixing chamber toward the core member; At least one of a connection portion between the nozzle holder and the air nozzle and a connection portion between the nozzle holder and the injection nozzle has a sealing member.

According to the present invention, unlike the manner in which the shot material is placed in the pressurizing tank and the pressurizing tank is pressurized to send the shot material to the nozzle assembly (so-called pressurized type), a large additional device is not required, and the entire apparatus can be realized. miniaturization. Further, at least one of a connection portion between the nozzle holder and the air nozzle and a connection portion between the nozzle holder and the injection nozzle is provided with a sealing member, whereby the ejection amount of the injection material can be stabilized.

This application is based on the Japanese application filed on January 12, 2012 in Japan. Based on 2012-004284, the contents thereof are formed as part of the contents of this application.

Further, the present invention should be more fully understood from the following detailed description. However, the detailed description and specific embodiments of the invention are intended to Various changes and modifications will become apparent to those skilled in the <RTIgt;

The Applicant does not intend to dedicate any of the described embodiments to the public. The changes and alternatives disclosed are not included in the text of the patent application, and are also part of the invention under the principle of equality.

In the description of the specification or the scope of the claims, the use of the singular and plural terms should be construed as the singular and plural. The use of any of the exemplified or exemplified terms (e.g., "etc.") is not intended to limit the scope of the present invention.

An example of an embodiment of the deburring method of the present invention will be described with reference to the drawings. Further, the present invention is not limited to the configuration of the embodiment, and may be appropriately changed as needed.

Fig. 1 is a front view (right side of Fig. 1) and a left side view (left side of Fig. 1) showing the beading apparatus 1 of the present invention. As shown in Fig. 1, the bead breaking apparatus 1 is composed of a beading processing chamber 10 having a door 10a for placing and discharging a workpiece W to be processed, and a recovery device (recycling means) 30. It is disposed on a base 50 having a moving member such as a roller 51. Further, a classification device (separation means) 20 for connecting a reservoir (storage means) 21 for storing the spray material is connected to the beading processing chamber 10.

As shown in FIG. 2, a hollow drum 11, a rotating mechanism (rotation means) 12, a nozzle assembly 13, and a nozzle assembly providing member (nozzle assembly setting means) 14 are provided in the beading processing chamber 10. The number of the rollers 11 to be arranged can be arbitrarily set depending on the amount of processing of the workpiece W to be processed. In the present embodiment, four rollers 11 are provided. The drum 11 is a polygonal box-shaped body having an opening at the upper portion or a cylindrical body having a bottom, which will be described later in detail.

As shown in FIG. 3, the drum 11 is inserted and held by the drum holder 11a. In order to hold the inserted drum 11 in the drum holder 11a, a bolt or the like may be used, and a fastening means such as a screw portion may be provided in both of them, and the method is not particularly limited. In the present embodiment, a hook (not shown) is formed in the roller holder 11a, and the outer wall of the drum 11 is engaged with the hook to constitute a structure that can be detachably attached in a one-touch manner. A rotating shaft 11b is provided at the center of the bottom surface of the drum holder 11a, and the first driving conveyor 11c is attached to the rotating shaft 11b. In the present embodiment, a sprocket is used as the first drive transmission device 11c.

The rotation mechanism (rotation means) 12 is configured to include a motor (rotation generating means) 12a and a susceptor 12d. In the present embodiment, as shown in Fig. 3, a rotation mechanism (rotation means) 12 for two bearings 12e is provided for the rotation shaft 11b of one roller holder 11a, and the roller holder 11a holding the drum 11 is held by the bearing 12e. In the rotating mechanism (rotation means) 12. Further, in the present embodiment, only one motor 12a is used, and the motor 12a is provided on the susceptor 12d.

As shown in FIG. 4, the rotating shaft 12b of the motor (rotation generating means) 12a The second drive conveyor 12c is mounted. The second drive transmission device 12c has a shape that is synchronized with the first drive transmission device 11c. For example, in the case of the present embodiment, the first drive transmission device 11c is a sprocket, and the second drive transmission device 12c has the same sprocket as the height of the mountain portion and the interval between the mountain portion and the mountain portion and the first drive transmission device 11c. . Alternatively, when the first driving device 11c is a pulley (not shown), the second driving conveyor 12c is a pulley having the same groove shape and groove depth as the first driving conveyor 11c. Therefore, in the present embodiment, the second drive transmission device 12c uses the sprocket having the same height as the mountain portion of the sprocket of the first drive transmission device 11c and the same interval between the mountain portion and the mountain portion.

The second drive conveyor 12c and all of the first drive conveyors 11c are coupled by the drive transmission member 12f so that the rotational force of the motor (drive transmission means) 12a is transmitted to all the rollers 11. In the present embodiment, a chain member is used as the drive transmission member 12f, and the chain member 12f is driven by the rotational force of the sprocket (second drive transmission 12c) of the rotary shaft 12b of the motor (rotation generating means) 12a. The sprocket (the first drive transmission 11c) of the rotating shaft 11b of the holder 11a (not shown in Fig. 4) is connected to each other. Therefore, all of the drum holders 11a rotate or all of the drums 11 rotate in accordance with the rotation of the rotary shaft 12b of the motor (drive transmission means) 12a.

Next, the shape of the drum 11 will be described with reference to Figs. 5 and 6 . The drum 11 is substantially a hollow body, and has an opening portion 11d for inserting and discharging the workpiece W or spraying the material toward the workpiece W at the upper end thereof, and the bottom end is closed. A plurality of through holes 11i are formed in a wall surface on the outer circumference of the drum 11. The drum 11 is rotated when the burr is removed, because the plurality of processed parts W placed inside the drum are made to flow and stirred. mix. That is, all the processed parts W are caused to remain on the bottom portion or the wall portion of the drum 11 to appear on the opening side, thereby deburring all the processed parts W. In order to carry out the stirring with high efficiency, the cross-sectional shape of the drum 11 parallel to the opening portion 11d is preferably a polygonal shape or a circular shape. In the case of a circular cross section, it is preferable to provide the stirring promotion member 11e on the inner wall of the drum 11 (refer FIG. 5). The agitation promoting member 11e may be a well-known structure that promotes agitation of the workpiece W in the drum 11 such as a plate on the inner surface or a rod-shaped member. Further, depending on the cross-sectional shape of the drum 11 parallel to the opening portion 11d, in order to prevent the workpiece W from being retained at the bottom of the drum 11, the inner diameter (sectional area) of the drum 11 is provided toward the bottom near the bottom of the drum 11. The stirring promotion surface 11h which is continuously reduced is preferable. The inclination angle θ1 of the stirring promotion surface 11h is remarkable in the range of 115° to 135° according to the experiment. Further, the through hole 11i is formed such that the material to be ejected does not stay inside the drum, and the diameter thereof is such a size that the injection material can pass but the workpiece to be processed does not leak from the through hole.

Further, when the agitation is performed more efficiently, the workpiece W to be processed is ejected from the drum 11 during the ejection. Therefore, it is preferable to attach the ring-shaped ring 11j to the surface of the opening portion 11d of the drum 11. The height (11k) of the convex portion protruding toward the inner surface is preferably 1 to 8 mm, more preferably 3 to 6 mm, which does not hinder the entry of the spray material from the opening.

Further, the stirring is performed more efficiently by tilting the drum 11. The inclination angle θ (refer to Fig. 2) of the drum 11 for the purpose thereof is preferably in the range of 20 to 40, more preferably in the range of 27 to 32, depending on the experiment. In this case, it is preferable that the diameter (sectional area) provided in the vicinity of the opening of the drum 11 is continuously changed toward the opening 11d so that the workpiece 11 is not leaked to the outside of the drum 11 when the drum 11 is inclined. The small leak prevention surface 11f. However, in the case where the leakage preventing surface 11f is provided at substantially 90° with respect to the side wall surface 11g of the drum 11, the corner portion of the side wall surface 11g of the drum 11 and the leakage preventing surface 11f is formed regardless of the installation angle of the nozzle unit 13. The processed part W cannot eject the spray material. In order to prevent the workpiece W from leaking outside the drum 11 without affecting the burring, it is preferable that the angle θ _{2 of the} leakage preventing surface 11f and the side wall surface 11g of the drum 11 is in the range of 115° to 135°.

Used in the present embodiment is empty and the closed bottom of the drum 11, shown in Figure 6, the shape of the cross section of the opening 11d parallel portion is octagonal, having the inclination angle θ ₁ is the promotion of stirring of 118 ° and the inclination angle surface 11h θ ₂ is a leakage preventing surface 11f of 132°. The rotation mechanism 12 that holds the drum 11 through the drum holder 11a and rotates it is arranged such that the inclination angle θ of the drum 11 becomes 30°.

Next, the nozzle assembly 13 for deburring will be described with reference to FIG. The nozzle unit 13 is constituted by a nozzle holder 13a, an air nozzle 13b, and an injection nozzle 13c. The nozzle holder 13a has a shot material supply port 13d for inserting the shot material, and the inside of the nozzle holder 13a has a path 13e for passing the shot material introduced from the shot material supply port 13d, and the mixing chamber 13f. In the mixing chamber 13f, the compressed air introduced through the air nozzle 13b is mixed with the above-described spray material coming from the path 13e.

Air nozzle 13b having a compressed air injection port 13b of _O to inject compressed air at an end, this injection port 13b toward the inner diameter of the _O tapered cylindrical shape. This air nozzle 13b, with the said compressed air injection ports 13b _o the side of the supply port 13b _i of the compressed air from the nozzle to the nozzle holder 13a is inserted into the base end of the holder with the projection 13a of the embodiment. The base end (compressed air introduction side) of the nozzle holder 13a communicates with a compressed air supply source (not shown) through a supply port 13b _{i of the} air nozzle 13b through a pipe member (not shown). The compressed air introduced from the compressed air supply source is injected into the nozzle holder 13a. At this time, a negative pressure is generated inside the nozzle holder 13a. The injection material is suction-introduced from the shot material supply port 13d to the inside of the nozzle holder 13a by this negative pressure. The shot material introduced from the shot material supply port 13d passes through the shot material passage path 13e, is guided to the mixing chamber 13f, and is mixed with the compressed air introduced into the nozzle holder 13a. In this embodiment, the injection material supply port 13d, as described later, in communication with the reservoir 21 through tube H _2, suction storage material injected inside the reservoir 21.

The injection nozzle 13c is a hollow structure in which both ends are liberated, and the sectional area S _13ci of the supply port 13c _i side of the compressed air and the solid-phase two-phase flow of the injection material is _smaller than the injection port 13c _o side of the solid-phase two-phase flow on the opposite side. The sectional area S _{13co is} large. The cross-sectional shape of the supply port 13c _i and the injection port 13c _o may be any of a circular shape and a polygonal shape including a rectangle. In the present embodiment, the cross-sectional shape of the supply port 13c _i and the injection port 13c _o is circular. The injection nozzle 13c is disposed such that the center line of the longitudinal direction of the air nozzle 13b and the center line connecting the supply port 13c _{i of the} injection nozzle 13c and the center point of the injection port 13c _{o are} substantially on the same line, and the mixing chamber 13f and the supply port are provided. 13c _i connected. In the above-described solid-gas two-phase mixing chamber 13f arising from the supply port 13c flows through the injector _I of the inner nozzle 13c, 13c is _O ejecting said ejection outlets.

Further, it is preferable that the connection portion between the nozzle holder 13a and the air nozzle 13b and the connection portion between the nozzle holder 13a and the injection nozzle 13c are At least one of them is more preferably provided with a sealing member 13g. When the compressed air introduced into the nozzle holder 13a leaks from the gap of the connecting portion, the negative pressure generated inside the nozzle holder 13 becomes small, and the suction force of the spray material is lowered, but the lowering can be provided by providing the sealing member 13g. To suppress. In the present embodiment, grooves are provided on the outer circumference of the air nozzle 13b and the injection nozzle 13c, and an O-ring is fitted in the groove as the sealing member 13g.

Further, in the shape of the air nozzle 13b and the injection nozzle 13c which are tapered from the respective supply ports 13b _i or 13c _i toward the respective injection ports 13b _o or 13c _o (see FIG. 8 (refer to FIG. 8) C)), a shape that is tapered in stages, a shape including a space in which the same diameter is continuous (refer to 8 (B)), a shape that becomes thicker after being continuously or stepwise (refer to FIG. 8(D)), or a combination Such a shape (for example, a shape in which the same diameter is continuous (see FIG. 8(A))) after continuous thinning may be used.

In the present embodiment, since four rollers 11 are provided, four nozzle assemblies 13 are provided. The nozzle assembly 13 is mounted in the beading processing chamber 10 by the nozzle assembly setting members 14, respectively, as shown in Fig. 9(A). Since the drum 11 of the present embodiment is inclined and has the leakage preventing surface 11f, the nozzle unit 13 is attached in this manner. The setting member 14 is formed in the mounting portion of the beating chamber 10 to the nozzle setting portion by an arm having at least one movable member. For example, in FIG. 9(A), a plurality of corner post members are engaged with a plurality of cylindrical members to form a rotatable nozzle assembly providing member 14, whereby the nozzle assembly 13 can be freely set in the up, down, left, and right directions with respect to the drum 11. position. The portion in which the nozzle assembly setting member 14 is disposed in the beading processing chamber 10 is not particularly limited. In the present embodiment, it is disposed on the base of the rotating mechanism 12. 12d (refer to Figure 3). Specifically, as shown in FIG. 9(B), the first, second, third, and third portions that are engaged with the nozzle assembly mounting member 14 with respect to the susceptor 12d (not shown in FIG. 9(B)) 4. The fifth arms 14a, 14b, 14c, 14d, 14e are as follows.

Base 12d: A cylindrical member is provided at a portion where each nozzle assembly 13 is provided.

The first arm 14a is formed of a corner post member, and has a first hole having the same diameter as the cylindrical member in the longitudinal direction (the vertical direction of the paper surface of Fig. 9(B)), and the cylindrical member of the pedestal 12d is embedded in the first hole. . Further, the second hole having the same diameter as the second arm 14b is provided in the height direction (the direction in which the paper is upside down).

The second arm 14b is formed of a cylindrical member, and its lower end is fitted into a second hole that is engaged with the first arm 14a.

The third arm 14c is formed of a corner post member and has a third hole having the same diameter as the second arm 14b in the height direction of one end (the right side of FIG. 9(B)), and the hole is fitted with the upper end of the second arm 14b. . Further, the other end has a fourth hole having the same diameter as the fifth arm 14e in the vertical direction of the paper surface, and one end of the fifth arm 14e is fitted into the hole.

The fourth arm 14d is formed of a corner post member, and has a fifth hole having the same diameter as the cylindrical member of the fifth arm 14e in the vertical direction of the sheet at one end (the right side of FIG. 9(B)), and the hole is inserted and engaged in the fifth hole. The cylindrical member of the arm 14e. Further, a holder (not shown) for holding the nozzle unit 13 is provided in the vicinity of the other end.

The fifth arm 14e is formed of a cylindrical member, and one end thereof (inside the paper surface of FIG. 9(B)) is fitted into the fourth hole of the third arm 14c, and the other end thereof is fitted into the fifth hole of the fourth arm 14d. .

Here, the holder of the nozzle assembly 13 is not particularly limited. For example, in The fourth arm 14d may be fixed by a bolt or the like, and may be held by a clamp mechanism. Further, the holder itself is configured to be rotatable to increase the degree of freedom in setting the nozzle assembly 13.

In the deburring device of the present embodiment, the installation member 14 of the nozzle unit 13 is moved in conjunction with the opening and closing of the door 10a. That is, the nozzle assembly 13 is moved in such a manner that the discharge of the drum 11 is easy when the door 10a is opened and the door 10a is closed.

With reference to Fig. 10, the spray material sprayed by the nozzle unit 13 and the dust generated by the burr may be classified, and the spray material and the dust (hereinafter referred to as "dust") which cannot be reused may be removed and taken out and reused. A classifying device (separation means) 20 for the spray material. The classifying device 20 is closed on the upper surface of the suction member 20c, and the first cylindrical body 20a having the insertion member 20d on the side having the continuous sectional area is continuously smaller from the upper direction toward the lower diameter (sectional area). The second cylindrical body 20b is connected to each other. A reservoir 21 is connected below the classifying device 20. The insertion member 20d is connected to the bead processing chamber 10 through the tube D ₁ (Fig. 1). Further, the suction member 20c is connected to the recovery device 30 through the pipe D ₂ (FIG. 1). That is, the space in the beading processing chamber 10, the space in the classifying device 20, the space in the reservoir 21, and the recovery device 30 form a continuous space.

The reservoir 21 for storing the reusable spray material taken out by the classifying device 20, as shown in Fig. 11, is the third cylindrical body 21a connected to the bottom of the classifying device 20 and the downward diameter (sectional area). The fourth tubular body 21b which is continuously reduced in size is connected to each other. In addition, the diameter (sectional area) is continuously reduced, and the diameter (sectional area) is reduced uniformly, and the reduction rate of the diameter (sectional area) is different, or the interval including the same diameter (sectional area) is continuous. can. In other words, it is not necessary to include a section that becomes larger toward the lower diameter (sectional area). In this case, the side wall of the fourth cylindrical body 21b is set to have a range of 73 to 87 with respect to the angle θ ₃ with respect to the horizontal plane. If the angle is less than 73°, the phenomenon that the spray material inside the reservoir 21 cannot be taken out due to bridging phenomenon is likely to occur. In order to prevent this, the angle is preferably large. However, if the angle is larger than 87°, the discharge assisting device 21d described later is increased in size. Therefore, in order to efficiently take out the shot material from the reservoir 21 and make the discharge assisting device 21d small, the angle θ ₃ is preferably set in the range of 73° to 87°. Further, in the vicinity of the lowermost portion, the shot material take-out tool 21c that supplies the shot material stored inside the stocker 21 to the nozzle unit 13 is provided. 21c-based injection material injected issued 13 take the material supply port 13d is connected through H ₂ (FIG. 2) and the tubular nozzle assembly. Further, at the lowermost portion of the fourth cylindrical body 21b, a discharge assisting device 21d is provided for replacement and discharge of the sprayed material stored in the reservoir 21. As the discharge assisting device 21d, a butterfly valve is used in the present embodiment, but a ball valve or a gate valve may be used instead. Further, the cylindrical bodies 21a and 21b of the reservoir 21 may be a cylindrical body, and may be a tubular body having a polygonal cross section. In the present embodiment, a tubular body having a rectangular cross section is used.

In the present embodiment, the classifying device 20 and the accumulator 21 are provided such that at least the ejecting material take-out tool 21c of the accumulator 21 is disposed in the beating chamber 10, but if the ejecting material is supplied to the nozzle unit 13 without causing a defect, the setting is set. The part is not particularly limited.

In the present embodiment, the collection means 30 for collecting the dust is used to separate the collection of solid (dust) and gas filter cloth by solid-gas two-phase flow. Dust machine. Moreover, as a method of removing (scraping) the dust deposited on the filter cloth at the time of collection, a pulse jet method in which compressed air is intermittently blown to the filter cloth is used. However, the mode is not limited thereto, and for example, a mechanical means of shooting by mechanical means may be used. As shown in Fig. 12, in the recovery device 30, a discharge device 31 is provided in order to discharge the dust collected from the filter cloth and stored in the bottom of the recovery device 30 to the outside of the recovery device 30. In the discharge device 31, a ball valve is used in the present embodiment, but instead of this, for example, a gate valve or a rotary valve may be used.

(Example)

Next, the deburring of the deburring device of this embodiment will be described. In the present embodiment, as the workpiece W to be processed, a process for roughening a ceramic member of 0.8 × 1.6 mm will be described. In addition, in the present specification, the "small-sized workpiece to be processed" refers to a workpiece to be processed having a diameter or a side of approximately 30 mm or less, and particularly, the workpiece to be processed having a diameter of 2 mm or less is preferably applied to the present invention. Deburring device.

The door 10a of the beading processing chamber 10 is opened, and four rollers 11 are taken out from the inside of the beading processing chamber 10, and approximately the same number of processed parts W are placed in the respective rollers 11. Thereafter, the drum 11 is again engaged with the drum holder 11a and installed in the beating chamber 10. Further, the sprayed material (zirconia in the present embodiment) is placed in a necessary amount into the beating chamber 10 to close the door 10a. Further, the opening and closing of the door 10a may be manual, but may be achieved by, for example, a mechanical operation such as a cylinder.

Next, the recovery device 30 is operated, and the suction force generated by the injection material by the recovery device 30 is transferred to the classification device 20, and then stored in the storage device 21. Inside.

Next, the motor 12a is operated to rotate the four drums 11. By this, the workpiece W in the agitating drum 11 is rotated.

Next, the compressed air generating source is operated, and for example, a compressed air having a pressure of 0.7 MPa is injected by the air nozzle 13b to generate a negative pressure inside the nozzle unit 13. By this negative pressure, the injection material is supplied to the nozzle assembly 13, is ejected from the ejection port 13c _O together with the compressed air. The sprayed spray material collides with the surface of the workpiece W to be subjected to deburring. Further, since the workpiece W is agitated by the rotation of the drum 11, all the processed parts W are sequentially exposed to the shot material, and the burrs of all the processed parts W can be performed.

Injection of a mixture of wood dust with the injection of burr generation is attractive recovery tube 30 arising through D ₁ is transferred to the classification means 20. Inside the classifying device 20, a swirling air flow is generated by the attraction force generated by the above-described recovery device 30. That is, since the attraction force is generated from above the classifying device 20, the above-mentioned spray material and the dust are placed in the classifying device 20, and by this swirling air flow, the heavier powder moves downward, and the lighter powder The body moves upwards. In other words, since the reusable material is heavier than dust, it is moved downward, stored in the reservoir 21, and ejected from the nozzle unit 13 through the tube member H ₂ , and the dust is light, so that it moves upward and is recovered through the tube D _{2 .} Device 30 is transferred. The dust transferred to the recovery device 30 is deposited on the surface of the filter cloth inside the recovery device 30. The dust deposited on the surface of the filter cloth is photographed by pulse jetting and stored at the bottom. The stored dust is discharged to the outside of the recovery device 30 by the open discharge device 31.

When the treated part W is machined to the intended shape, the compressed air supply is stopped. The operation of the source. At this time, the rotation of the motor 12a continues. This is because the sprayed material remaining in the drum 11 is discharged to the outside through the through hole 11i of the wall surface. Similarly, the operation of the recovery device 30 continues. This is because the inside of the beating chamber 10 is filled with the spray material and the dust. Therefore, the material is transmitted through the classifying device 20, and the spray material is stored (recovered) in the storage unit 21, and the dust is collected by the recovery device 30.

After the shot material inside the drum 11 is discharged and the collection of the shot material and the dust inside the bead processing chamber 10 is completed, the operation of the motor 12a and the recovery device 30 is stopped, the door 10a of the bead processing chamber 10 is opened, and the processed part W is taken out. , complete the deburring.

Further, in order to change the material to be processed or to change the purpose of processing, it is necessary to replace the material to be sprayed, and it is necessary to discharge the material to be stored in the reservoir 21, and the material can be easily taken out by opening the discharge aid 21d.

Further, in the case where the workpiece W is changed or the like, the drum 11 must be replaced with another shape, and the nozzle unit setting member 14 is driven to adjust the position of the nozzle unit 13, so that the drum 11 can be easily replaced.

Fig. 13 is a view showing an example of the deburring device 1 of the present embodiment. Fig. 13(A) shows a beating device for opening and closing the door 10a by mechanical power (in this case, a cylinder), and Fig. 13(B) is a beating device for opening and closing the door 10a by manual (manual).

Further, if the specific gravity of the spray material is too small, the effect of deburring cannot be sufficiently obtained, and if it is too large, the spray material causes cracks or notches of the treated part. If the average diameter of the sprayed material is less than 0.02 mm, the effect of deburring cannot be sufficiently obtained. If it is larger than 0.08 mm, the impact of the sprayed material on the portion to be burred is changed. Not enough. If the injection pressure is too low, the effect of deburring is not sufficiently obtained, and if it is too high, cracks or nicks are formed in the parts to be processed.

That is, in order to perform deburring without causing cracks or notches in the workpiece to be processed, it is preferable to set the specific gravity of the injection material to 1.0 to 3.0, the average diameter of the injection material to 0.02 to 0.08 mm, and the injection pressure of the jet flow to be 0.03 MPa or more and 0.15 MPa or less.

Further, when the distance from the opening of the nozzle end of the jet in which the jet of the injected material is mixed to the member W to be processed, that is, the core member made of the block ceramic is shorter than 200 mm, the sprayed material reaches the member to be processed, that is, the block ceramic. The core member is not sufficiently diffused before it is formed, and the sprayed material is wasteful. Moreover, if it is larger than 500 mm, the spray material will only slightly collide with the workpiece to be processed, and the deburring will become insufficient. In order to prevent the diffusion of the jet airflow from being excessively and efficiently deburring, the distance from the opening of the nozzle tip to the workpiece to be processed is preferably 200 mm or more and 500 mm or less. Further, it is more preferably 200 mm or more and 300 mm or less. With this appropriate distance, no cracks or nicks are formed in the part being processed.

In the injection range of the jet of the gas in which the injection material is mixed at the position of the core member made of the block ceramic, the difference between the rotation speed of the injection center and the injection outer peripheral portion is 32 mm/s or more and 64 mm/s or less. The component can be scrolled.

If the difference in rotational speed is small, the efficiency of deburring is lowered. If the difference in rotational speed is large, the core members collide with each other to cause cracks or nicks.

By causing the core members to collide with each other, cracks or notches are generated and deburring is efficiently performed, and preferably, the difference in rotational speed is 32 mm/s or more. Below 64mm/s.

Further, if the hardness of the shot material is too low, the effect of deburring is not sufficiently obtained, and if it is too high, cracks or nicks are formed in the workpiece to be processed. By setting the hardness of the material to be HV 1000 to 2500, the burr of the core member made of the block ceramic can be efficiently performed.

A core member made of a block ceramic, having a gap of 0.3 mm to 0.8 mm in a flange, and being an inductor member or a coil member of an electronic component which is fired and manufactured by molding, having a polygonal shape and consisting of alumina or tantalum carbide There are many situations in which it is constituted. Therefore, the spray material having an average diameter of 0.02 to 0.08 mm is sprayed toward the outer periphery of the winding edge or the core portion of the winding core portion at least toward the gap between the plurality of flanges.

Thereby, since the spray material of an appropriate size can be ejected to the gap between the inductor member of the electronic component or the flange of the coil member, the deburring can be performed efficiently.

The present invention has been described with respect to specific embodiments, but many modifications and modifications may be made. For example, if the nozzle unit 13 can secure a space for installing an additional device such as a pressurizing tank, a so-called direct pressure type may be used.

In the above embodiment, in order to rotate the drum 11, the drum holder 11a is used. However, the configuration of the embodiment in which the drum holder 11a is omitted and the drum 11 having the drive shaft at the bottom is used may be noted.

The material to be sprayed is a so-called cut lead, a ceramic system, a resin system, a plant system, etc., which is a wire or a wire or a fine wire cut (or a rounded portion after cutting). The user of the material can be preferably applied.

In the above embodiment, although the deburring of the workpiece W formed of the hard and brittle material is described, the deburring device of the present invention can be applied to the deburring regardless of whether the workpiece W is a metal material or a non-metal material.

1‧‧‧Deburring device

10‧‧‧Bearing processing room

10a‧‧‧

11‧‧‧Roller

11a‧‧‧Roller holder

11b‧‧‧Rotary axis

11c‧‧‧1st drive transmission (sprocket)

11d‧‧‧ openings

11e‧‧‧Agitator-promoting components

11f‧‧‧ leak prevention surface

11g‧‧‧ side wall

11h‧‧‧Stirring promotion surface

11i‧‧‧through hole

11j‧‧‧ Ring of convex shape

11k‧‧‧ Height of the convex part

12‧‧‧Rotating mechanism (rotation means)

12a‧‧‧Motor (rotation means)

12b‧‧‧Rotary axis

12c‧‧‧2nd drive transmission (sprocket)

12d‧‧‧Base

12e‧‧‧ bearing

12f‧‧‧Drive means (chain)

13‧‧‧Nozzle assembly

13a‧‧‧Nozzle holder

13b‧‧‧air nozzle

13b _i ‧‧‧Compressed air supply port for air nozzles

13b _o ‧‧‧Compressed air injection port for air nozzles

13c‧‧‧jet nozzle

13c _i ‧‧‧ Supply of solid-gas two-phase flow

13c _o ‧‧‧The opening of the solid-gas two-phase flow

13d‧‧‧Spray supply port

13e‧‧‧Spray path

13f‧‧‧Mixed room

13g‧‧‧ Sealing member

14‧‧‧Nozzle assembly setting member (nozzle assembly setting means)

14a‧‧‧1st arm

14b‧‧‧2nd arm

14c‧‧‧3rd arm

14d‧‧‧4th arm

14e‧‧‧5th arm

20‧‧‧Classification device (separation means)

20a‧‧‧1st cylinder

20b‧‧‧2nd cylinder

20c‧‧‧Attraction components

20d‧‧‧Into the component

21‧‧‧Storage means

21a‧‧‧3rd cylinder

21b‧‧‧4th cylinder

21c‧‧‧Feeding material removal means

21d‧‧‧Exhaust aids

30‧‧‧Recycling means

31‧‧‧Discharge

50‧‧‧Abutment

51‧‧‧Mobile components (rollers)

H ₁ ‧‧‧ pipe fittings (for compressed air introduction)

H ₂ ‧‧‧ Pipe fittings (for the supply of spray materials)

D ₁ ‧‧‧Classification device tube

D ₂ ‧‧‧Recycling tube

W‧‧‧Processed parts

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view and a side view schematically showing the configuration of a deburring device of the present invention.

Fig. 2 is an explanatory view showing the internal configuration of a beading processing chamber in the deburring device of Fig. 1.

Fig. 3 is an explanatory view showing a method of disposing a drum in a rotating mechanism in the deburring device of Fig. 1.

Fig. 4 is an explanatory view showing a method of setting a driving communication member in the deburring device of Fig. 1.

Fig. 5 is an explanatory view showing an example of a roller having a circular longitudinal section which can be used in the deburring device of the present invention. Fig. 5(A) is a side view of the drum, Fig. 5(B) is a cross-sectional view taken along line B-B of Fig. 5(A), and Fig. 5(C) is a perspective view of the drum of Fig. 5(A).

Fig. 6 is an explanatory view showing an example of a roller having a polygonal longitudinal section which can be used in the deburring device of the present invention. Fig. 6(A) is a side view of the drum, Fig. 6(B) is a B-direction arrow view in Fig. 6(A), and Fig. 6(C) is a cross-sectional view taken along line C-C in Fig. 6(A).

Figure 7 is an explanatory view showing a nozzle assembly in the deburring device of Figure 1.

8(A)-(D) are cross-sectional views showing the cross-sectional shape of the injection nozzle in the nozzle assembly of Fig. 7.

Fig. 9 is an explanatory view showing a nozzle assembly setting member which can be used in the deburring device of the present invention. Fig. 9(A) is an explanatory view showing a driving example of the nozzle unit setting member. Fig. 9(B) is an explanatory view showing an example of the configuration of the same installation member.

Figure 10 is an explanatory view showing a classifying device in the deburring device of Figure 1. Figure 10 (A) is a side view of the classifying device, Figure 10 (B) is a B-direction arrow view in Figure 10 (A), Figure 10 (C) is a CC line cross-sectional view in Figure 10 (B), Figure 10 (D) Fig. 10(A) is a cross-sectional view taken along line DD.

Figure 11 is a side elevational view of the reservoir in the deburring device of Figure 1.

Figure 12 is an explanatory view showing a recovery device in the deburring device of Figure 1.

Figure 13 is a reference view showing an embodiment of the deburring device of the present invention. Fig. 13(A) is an external view showing the deburring device which achieves the opening and closing of the door by mechanical power, and Fig. 13(B) shows an external view of the deburring device which is opened and closed by the human hand.

11‧‧‧Roller

12‧‧‧Rotating mechanism (rotation means)

13‧‧‧Nozzle assembly

14‧‧‧Nozzle assembly setting member (nozzle assembly setting means)

20‧‧‧Classification device (separation means)

21‧‧‧Storage means

H ₂ ‧‧‧ Pipe fittings (for the supply of spray materials)

Claims (14)

A method for removing a burr of a core member made of a block ceramic, which removes a convex burr generated by a core member made of a block ceramic having a plurality of flanges and a core portion in a gap between the plurality of flanges, A step of: a step of inserting a plurality of core members with a bottomed cylindrical drum having an opening at one end and having the other end closed; a step of rotating the drum to agitate the plurality of core members; a step of forming a ridge of a convex portion formed by a gap between a plurality of flanges by a core member of the block-shaped ceramic, jetting a jet of a gas having a smaller amount of the spray material than a gap of the flange; and causing the sprayed material to be ejected from the sprayed material a step of discharging the through hole provided in the wall surface of the drum to the outside of the drum. The method for processing a burr of a core member composed of a block ceramic according to the first aspect of the patent application, wherein the spray material has a specific gravity of 1.0 to 3.0, and the average diameter of the sprayed material is 0.02 to 0.08 mm, and the spray pressure of the spray. It is 0.03 MPa or more and 0.15 MPa or less. A method for processing a burr of a core member composed of a bulk ceramic according to the first aspect of the invention, wherein the distance from the front end of the nozzle which emits the jet of the gas in which the sprayed material is mixed to the core member formed of the bulk ceramic It is 200mm or more and 500mm or less. A method for processing a burr of a core member made of a block ceramic according to the first aspect of the invention, wherein a jet range of a gas in which the material of the material is mixed at a position of a core member made of the block ceramic is used in, The core member is rolled so that the difference in rotational speed between the injection center and the outer peripheral portion of the injection is 32 mm/s or more and 64 mm/s or less. A method for processing a burr of a core member composed of a bulk ceramic according to the first aspect of the patent application, wherein the hardness of the sprayed material is HV1000 to 2500. A method for processing a burr of a core member made of a block ceramic according to the first aspect of the invention, wherein the core member made of the block ceramic has a gap of 0.3 mm to 0.8 mm and is formed by molding. The inductor member or the coil member of the electronic component produced by the post-baking method is formed of alumina or tantalum carbide in a polygonal shape; and an injection material having an average diameter of 0.02 to 0.08 mm is sprayed. A method for processing a burr of a core member made of a block ceramic according to the second aspect of the invention, wherein the injection amount of the spray material is 0.2 to 0.8 kg/min, and a jet of gas mixed with the spray material is emitted. The distance from the tip end of the nozzle to the core member made of a block ceramic is 200 mm or more and 300 mm or less. A deburring device for a component of an electronic component, wherein the method of processing a core member according to any one of claims 1 to 7 is characterized in that: the plurality of rollers are provided; and the plurality of rollers are provided At least one rotating mechanism that rotates; and a plurality of nozzle assemblies that spray a jet of gas mixed with the injection material; and a plurality of through holes are formed in a wall surface of the outer circumference of the roller. The inner wall of the cylindrical shape is provided with a stirring promoting member. The deburring device for an electronic component according to the eighth aspect of the invention, wherein the opening of the roller is opposite to the nozzle assembly, and the spraying of the spray material is directed from the opening of the roller toward the bottom. The plurality of core members of the cylindrical drum are formed by the burrs of the projections generated by the gaps of the plurality of flanges. The deburring device for the component of the electronic component of claim 9 wherein the roller is inclined at an angle of 20 to 40 degrees. A deburring device for a member of an electronic component according to claim 10, wherein the roller is a polygonal box having an opening at the upper portion or a bottomed cylindrical member. A deburring device for an electronic component according to the eleventh aspect of the invention, wherein the nozzle assembly is configured to move the nozzle assembly, and the jet of the gas mixed with the injection material is emitted from the nozzle assembly The distance from the front end of the nozzle to the core member made of a block ceramic is controlled within a predetermined range. A deburring device for a component of an electronic component according to claim 12, wherein the nozzle assembly is configured to move the nozzle assembly to replace the roller after the end of the spraying. The deburring device for the component of the electronic component of claim 13 , wherein the nozzle assembly comprises: an air nozzle for introducing compressed air into the nozzle holder to generate a negative pressure inside the nozzle holder; a nozzle holder having a negative pressure generated by the interior of the nozzle assembly a path through which the spray material passes, a mixing chamber for mixing the spray material with the compressed air, and a spray nozzle for injecting compressed air and the spray material mixed in the mixing chamber toward the core member; the nozzle holder At least one of a connection portion with the air nozzle and a connection portion between the nozzle holder and the injection nozzle has a sealing member.