KR100955624B1 - P0lyhedron inspection feeder and polyhedron inspection apparatus - Google Patents

Abstract

It is provided with the supply means 11 which supplies the chip | tip W which consists of chip | tip capacitors etc. as a test | inspection object, the moving means 12 attached to this supply means 11, and the polyhedral test feeder 13. The polyhedral inspection feeder 13 includes a rotary feed part 41 having a groove 50 for rotating the chip W by about 180 ° while the chip W moves. The moving means 12 is comprised by the belt B, and each chip W is accommodated one by one by accommodating and moving one chip W in the punching hole 38 formed in the surface of the said belt B. It is supposed to move. In the area of the polyhedron inspection feeder 13, four cameras 14 to 17 image the inspection surface of the chip W to detect surface accuracy.

Groove, passage forming member, moving means, inspection object, rotary feed part, belt, punching part, supply path, exclusion means, posture maintenance means

Description

Polyhedron inspection feeder and polyhedron inspection device {P0LYHEDRON INSPECTION FEEDER AND POLYHEDRON INSPECTION APPARATUS}

1 is a schematic front view showing the overall configuration of a polyhedron inspection device according to an embodiment;

2 is a schematic plan view of the polyhedron inspection device,

3 is a schematic plan view of the supply means;

4 is a schematic perspective view of a main part of the supply means;

5 is a schematic perspective view of the supply means omitting the front block;

6 is a schematic perspective view showing the inner surface side of the front block;

7 is a cross-sectional view showing a state in which a chip is supplied in an appropriate posture;

8 is a cross-sectional view illustrating a state in which a chip is supplied in an inappropriate position;

9 is a sectional view showing a state in which a chip moves to a passage forming member;

10 is a schematic perspective view showing a rotary feed portion of the passage forming member;

11 is an exploded perspective view of the rotary feed unit;

12 is an explanatory diagram of a chip rotation operation in the rotary feed unit;

13 is an essential part cross sectional view showing a recovery means of a chip determined as defective;

Fig. 14 is a schematic configuration diagram showing a recovery means for chips determined to be good.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polyhedral inspection feeder and a polyhedral inspection apparatus, and more particularly, to a polyhedral inspection feeder and a polyhedral inspection apparatus suitable for inspecting the surface precision of an inspection object such as a chip constituting an electronic component.

Conventionally, when inspecting the precision of the finished surface of the electronic component which forms a chip shape as a test | inspection object, it inspects each surface by hand using a loupe etc. However, in such an inspection, the chips are held by hand one by one, and the inspection is performed by the naked eye, and the defects such as minute scratches and deformations are often missed, resulting in a mixture of defective products in the product. In addition, there is a problem that the inspector is fatigued, and the work load becomes heavy, and according to the skill level, a large dispersion occurs in the inspection precision.

Thus, the present inventor has proposed a polyhedral inspection feeder suitable for automatically checking the accuracy of the finished surface of the inspection object in the process of moving the inspection object in the predetermined direction (Japanese Patent Application No. 2001-127248). . The feeder is configured to include a passage forming member having a groove that can move the inspection object in a predetermined direction by applying a constant vibration in a state in which the inspection object is accommodated. The groove of the passage forming member includes a rotary feed portion whose left and right inclination angles are changed along the moving direction of the inspection object, wherein the inspection object forming the polyhedron rotates in the form of the spiral trajectory. While being movable, the inspection of a certain precision is performed by imaging a completed surface with a camera for inspection.

However, the above-mentioned proposed polyhedral inspection feeder is supplied one by one from a predetermined supply means, but the reliability of keeping the mutual separation distance of the inspection objects along the moving direction constant is not guaranteed sufficiently. not. Thus, for example, when two or more inspection objects are continuously moved in the state where the front end surface of the next inspection object is in contact with the rear end surface of the inspection object located in the front of the moving direction, the inspection camera is moved to the second or later. The location of the inspection object becomes unrecognizable, resulting in omission of inspection, resulting in a problem that it is impossible to reliably discharge the defective product.

SUMMARY OF THE INVENTION The present invention has been devised in view of the above problems, and an object thereof is to provide a polyhedral inspection feeder and a polyhedral inspection apparatus capable of reliably moving inspection objects one by one and ensuring reliability of inspection accuracy. .

Another object of the present invention is to provide a polyhedron inspection feeder and a polyhedral inspection apparatus which can avoid misjudgement by excluding the polyhedron when the posture of moving the polyhedron is not appropriate.

In order to achieve the above object, the polyhedral inspection feeder according to the present invention is provided with a passage forming member having a groove for defining a passage of an inspection object, and being movable along the groove, and at the same time the inspection surface of the inspection object. And moving means for engaging in the inspection object in the state exposed to the outside of the groove and conveying it in the groove,

The passage forming member includes a rotary feed unit for rotating the inspection object a predetermined angle in the process of moving the inspection object,

The moving means is provided with a belt, and the belt passes through the groove in a state in which the surface thereof is approximately vertical, and at the same time, engages the inspection objects one by one to allow rotation of the inspection objects. A configuration is adopted in which fitting areas are provided at predetermined intervals. With such a configuration, the inspection objects engaged in the engagement regions are spaced at regular intervals in correspondence with the mutual spacing of the engagement regions, and it is possible to reliably prevent the possibility of the plurality of inspection objects being continuously connected. The reliability of the inspection accuracy can be ensured in the individual inspection object. In addition, the inspection object can be smoothly rotated by imitating the inner shape of the groove, and the inspection object can be moved along the groove without concealing the inspection surface of the inspection object. In addition, when the inspection is performed by the camera, it is possible to prevent the diffuse reflection of the background of the image using the image, i.e., the illumination by the groove, so that it is possible to eliminate the discharge of the good product caused by the false inspection. In addition, when the inspection object is a rectangular parallelepiped or the like, the inspection surface can be symmetrically expressed on each side of the belt, so that inspection can be performed efficiently.

delete

delete

The present invention also provides a passage forming member having a groove for forming a passage of an inspection object, and a state in which the inspection surface of the inspection object is exposed to the outside of the groove while being installed to be movable along the groove. In the polyhedral inspection device comprising a moving means for engaging the inspection object,

And an additional means for supplying a test object provided in the moving means on an upstream side of the passage forming member, wherein the supply means includes a plurality of supply paths for supplying the test object in a plurality of moving directions of the moving means. Is adopted. In such a configuration, the state in which the inspection object is not supplied to the engaging region of the moving means can be reduced as much as possible, and the decrease in inspection efficiency can be suppressed.

When the inspection object to be engaged with the moving means is not in the proper engagement posture, it is preferable to provide exclusion means for removing the inspection object. As a result, only the inspection object always held in a constant posture is sent out to the passage forming member side, and in this respect as well, it is possible to suppress a decrease in inspection efficiency.

Moreover, what is necessary is just to employ | adopt the structure which is equipped with the attitude | position holding means which hold | maintains the said test surface at a fixed position, when the said test | inspection object reaches | attains a predetermined | prescribed test position. By such a configuration, the inspection can be performed with high precision while avoiding the fear of shaking the inspection surface.                     

In this invention, the rotary feed part is comprised by the groove | channel which has the intermediate shape connected in series by gradually changing mutually between substantially V shape, large U shape, and both types in cross-sectional shape. Moreover, although a rectangular parallelepiped or a cube becomes a preferable object as a test | inspection object, other three-dimensional objects do not prevent it from making it an object.

In addition, in this specification, the term which shows a direction or a position shall be used based on FIG. 1 unless there is particular notice.

(Detailed Description of the Preferred Embodiments)

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described.

The front view of the polyhedron test | inspection apparatus which concerns on this embodiment is shown in FIG. 1, and the top view is shown in FIG. In these drawings, the polyhedron inspection apparatus 10 includes a supply means 11 arranged on the upper portion of the frame F, a moving means 12 provided in the supply means 11, and a corresponding moving means 12. And a polyhedral inspection feeder 13 for moving the inspection object and the ceramic chip capacitor (hereinafter referred to as chip W) having a substantially rectangular parallelepiped shape in the present embodiment, and the polyhedral inspection feeder 13. First to fourth cameras 14, 15, 16, and 17 constituting the inspection means arranged along the same; and recovery means 18 for dividing and recovering the chips W according to the result of the inspection, that is, whether it is good or defective. ) Is configured.

The supply means 11 slides the chip W on the side of the supply path forming block 21 in succession to the hopper 20 accommodating the chip W and the upper opening of the hopper 20. It is comprised including the shooter 22 which falls. The hopper 20 is a bowl feeder and has a spiral passage 20A that is inwardly near the outside as it is directed upward, and is not shown in the number of chips W housed in the hopper 20. By applying the vibration by the vibrator, the chip W can be discharged sequentially from above.

The supply passage forming block 21 is formed using a plurality of members, as shown in Figs. That is, the rear block 24 which is located directly below the shooter 22 and which vibration is imparted by the vibrator described above, and the front block which is located on the opposite side of the rear block 24, that is, in front of the front block ( 25 and an intermediate block 26 provided between these blocks 24 and 25. In the rear block 24, the upper surface located inside the outer frame 27 is formed as the inclined surface 28 so that the upstream side becomes the upper position, and the chip W is caused by the vibration applied to the rear block 24. ) Jumps up the inclined surface 28 sequentially. As shown in FIG. 5, the intermediate block 26 is an inclined surface 29 whose upstream side becomes a slightly upward position than the downstream side, and the supply grooves (supply paths) of the chip W in three longitudinal directions thereof. (31) is formed along the trajectory of drawing a gentle curve. One end (rear end) of these supply paths 31 is located on the inclined surface 28 side of the rear block 24, while the other end (front end) is located on the front block 25 side. The intermediate block 26 is a chip which is opposite to the moving direction of the chip W in the rear block 24, i.e., from the upstream side to the downstream side (see Fig. 4) due to the vibration of the vibrator (not shown). When the chip (W) is moved so that the chip (W) dropped from the inclined surface (28) falls into the supply groove (31), the front block (25) of the chip (W) along the supply groove (31). To move to the side. On the other hand, the chip W which is not supplied from the supply path 31 to the moving means 12 transfers to the rear block 24 from the downstream region and again jumps up the inclined surface 28 of the rear block 24. It is intended to repeat the cycle. In addition, as shown in FIG. 7, between the front block 25 and the upper part of the intermediate block 26, the slot 35 which is continuous to the support surface 33 and 34 which becomes substantially V-shaped at the upper end is formed. In this slot 35, the lower half area of the belt B constituting the moving means 12 is accommodated so that the belt B travels along the orthogonal direction to the ground in Fig. 7. It is.

As shown in FIG. 1, the belt B is connected to the output shaft of the motor M disposed on the downstream end side, and rotates in a substantially horizontal plane with the drive pulley 36 located on the upstream end. It is wound and mounted between the drive pulley 36 and the driven pulley 37 which rotates in substantially the same plane. Accordingly, the belt B moves in a posture whose surface is substantially in the vertical plane. In the surface of this belt B, as shown in FIGS. 4-6, the punching hole 38 as an engagement area | region is formed in the endless at equal intervals with uniform size. The punching hole 38 is provided with a length along the moving direction of the belt B slightly longer than the long side dimension of the chip W, while one punching hole with two chips W sideways long. It is set to the length which cannot enter simultaneously with (38). In addition, the up-down width of the punching hole 38 is set to the width which allows rotation of the chip | tip W in the state shown in FIG. Therefore, while the belt B is passing through the slot 35, any one of the three supply paths 31 is slid so that the chip W can enter the punching hole 38. As shown in FIG. At this time, with respect to the punching hole 38, the posture (the posture shown in FIG. 7) in which the long dimension side of the chip W became the direction along the left-right direction is assumed to be appropriate, and the upper side 2 of the said chip W is suitable. The two surfaces are supported by the support surfaces 33 and 34 formed on the upper end side of the slot 35 and are sent out downstream. On the other hand, as shown in FIG. 8, when the direction of the long dimension side becomes the posture crossing the punching hole 38, the chip | tip W is regarded as an inadequate posture, and the removal means 39 removes this. It is provided on this front block 25.

The said exclusion means 39 is comprised including the nozzle 39A which always blows out air through the air pump which is not shown in figure. The nozzle 39A is configured to blow air from the upper portion to the portion of the chip W that protrudes largely from the punching hole 38. The air pressure causes the chip W to move from the punching hole 38 to the intermediate block. It is supposed to be able to get to the (26) side. In addition, a protrusion 26A is formed on the left side of the intermediate block 26, and a cutout 26B is formed at the protrusion 26A just below the nozzle 39A to facilitate the inflow. have.

The polyhedron inspection feeder 13 is connected to the downstream side of the supply means 11. As shown in Figs. 1 and 2, the polyhedral inspection feeder 13 includes an upstream side passage forming member 40 and a rotary feed portion continuous to the downstream side of the upstream side passage forming member 40 ( 41 and the downstream passage forming member 42 continuous to the downstream side of the rotary feed section 41. The upstream side passage forming member 40 and the downstream side passage forming member 42 are provided in the same shape. Therefore, the upstream passage forming member 40 will be described. As shown in FIGS. 9 and 10, the upstream passage forming member 40 is constituted by combining a pair of blocks 45 and 45. That is, each block 45 consists of a base block and a standing block 47 facing upward from one end side of the base block 46, and the cross-sectional shape is provided in the shape which approximates approximately L shape. have. On the upper end of the standing block 47, an outer inclined surface 47A and an inner inclined surface 47B are formed. Accordingly, the upstream side passage forming member 40 arranges the standing blocks 47 and 47 of the two blocks 45 and 45 so as to be in the front and back relationship, so that the grooves 48 having approximately V-shape on the upper side are formed. It can form, and the channel | path of the chip W is formed along the groove 48 by this. At this time, each of the blocks 45 and 45 is disposed between the standing blocks 47 and 47 such that a gap S having a dimension slightly larger than the thickness of the belt B is formed so as to form the gap S. Allow the movement of the belt (B) within. In the upstream and downstream passage forming members 40, the punching holes 38 are formed in the standing blocks 47 in the regions corresponding to the lens portions of the first and fourth cameras 14 to 17, respectively. The vacuum hole 49 constituting the posture holding means for opening into the lower region of the groove is formed, whereby the inside of the groove 48 is decompressed through the vacuum hole 48 so as not to disturb the movement of the chip w. The chip w is sucked to such an extent that the position of the inspection surface is kept constant.

As shown in FIGS. 10 to 12, the rotary feed part 41 rotates the chip W in a process in which the chip W is engaged with the punching hole 38 of the belt B and sent out. The groove 50 which can be made is comprised. The rotational feed part 41 has the shape of the groove 50 only different from the groove 48 of the upstream side passage forming member 40 and the downstream side passage forming member 42. It is the same. Therefore, the block which forms the rotation feed part 41 is abbreviate | omitted using the same code | symbol attached to the upstream passage formation member 40. FIG.

The inclined surfaces 50A and 50A which face each other so as to form the grooves 50 of the rotary feed section 41 are provided in substantially the same inner surface shape as the Japanese Patent Application No. 2001-127248 proposed earlier. Therefore, the detailed description of the cross-sectional shape is omitted here. Generally speaking, the groove 50 has a cross-sectional shape in which the inner surface shape of the approximately V-shaped and approximately U-shaped alternates along the moving direction of the chip W. By installing the intermediate inner surface reaching the inner surface of the approximately V-shaped and approximately U-shaped in a gentle curved shape, so that the chip (W) passing through the groove 50 is smoothly rotated to follow the trajectory of the spiral and go straight. It is installed. In the present embodiment, when the chip 7 passes, the inclined surfaces 50A and 50A gradually rotate to rotate about 180 degrees from the initial position (see " 0 " position in Fig. 12). It is installed to be connected in series in changing form. In addition, the inside surface shape of the groove | channel 50 is not restrict | limited to the structural example shown as long as it enables rotation of the chip | tip W. As shown in FIG.

The first to fourth cameras 14.15, 16, and 17 are supported on the upstream and downstream passage forming members 40, 42, respectively, via a stand (not shown). As shown in Figs. 1 and 2, the first and second cameras 14 and 15 are located on the upstream passage forming member 40, and at the same time their lens portions are the inspection surfaces of the chip W. Are arranged to face each other. That is, the first camera 14 inspects the inspection surface S1 (see FIG. 12) of the chip W, while the second camera 15 inspects the inspection surface S2 of the chip W. It is supposed to check. In addition, the third and fourth cameras 16 and 17 are positioned on the downstream side passage forming member 42 and are inspected for the chip W after being rotated about 180 degrees. That is, the lens portion of the third camera 16 faces the inspection surface S3 of the chip W to inspect the inspection surface S3, while the lens portion of the fourth camera 17 has the chip W The inspection surface (S4) is turned to inspect the inspection surface (S4). These cameras 14 to 17 are attached to a predetermined image processing inspection by an image processing apparatus to determine whether they are defective.

As shown in Figs. 1, 13 and 14, the retrieving means 18 is provided in a downstream side of the upstream passage forming member 40 immediately downstream of the second camera 15. The suction pipe 50 of 1, the 2nd suction pipe 51 provided in the downstream side immediately near the 4th camera 17 in the area | region of the downstream side passage formation member 42, and the said 2nd suction It is comprised by the 3rd collection | recovery apparatus 53 provided in the downstream of the pipe 51. As shown in FIG. The 1st and 2nd suction pipes 50 and 51 are for collect | recovering defective goods, and the 3rd collection | recovery apparatus 53 is comprised as collect | recovering good goods. As shown in FIG. 13, the airflow hole 55 which opens into the groove 48 is formed in the block 45 of the opposite side corresponding to the front end opening position of the 1st and 2nd suction pipes 50 and 51. As shown in FIG. And the air blown out from the air supply hole 55, and the chip W in the groove 48 is blown to the suction pipe 50, 51 side, and the chip determined as defective by the suction pipe 50, 51. (W) is to be collect | recovered in collection boxes 56 and 57, respectively. At this time, the first and second suction pipes 50 and 51 are always kept in a suctioned state, while the air supply hole 55 ejects air on the condition that it is determined to be defective. have. Therefore, in the state where air is not blown from the air hole 55 to the chip W, the chip W is not attracted by the suction force of the first and second suction pipes 50 and 51. It is maintained so as to be able to move in the groove 48.

As shown in FIG. 14, the third recovery device 53 is positioned substantially on the line through which the belt B passes, and has a cylindrical member provided with an opening 60A at a position below the belt B. FIG. It is comprised with 60. Air is blown out from above the cylindrical member 60, and the chip W as a good product positioned in the punching hole 38 of the belt B receives the partial output of the air. It loses the support by the forming member 42, falls to the cylindrical member 60, and is collect | recovered by the collection box 62. As shown in FIG. In addition, in FIG. 14, the code | symbol 63 shows a counter, and the said counter 63 is able to count the quantity of goods sequentially.

Next, the overall operation of the polyhedral inspection device 10 in the present embodiment will be described.

By turning on the predetermined power, the belt B constituting the moving means 12 rotates in the counterclockwise direction in FIG. 2, and the chip W moves from the hopper 20 of the supply means 11 to the shooter ( It is supplied on the rear block 24 via 22). The chip W on this rear block 24 jumps up the inclined surface 28 and continues to fall on the supply groove 31 of the intermediate block 26. At this time, the belt B is in a state where the belt B is moving at the front end side of the supply groove 31, and the chip W having passed through the supply groove 31 continues to enter the punching hole 38 of the belt B. I'm going to catch up with this. At this time, since the plurality of supply grooves 31 are provided in plural and three rows in this embodiment, most of the chip ball feed into the punching holes 38 does not occur.

When the chip W in the punching hole 38 is not in an appropriate posture, that is, when the chip W enters in a posture crossing the punching hole 38 as shown in FIG. In contrast, air is blown out from the nozzle 39A of the exclusion means 39, and the chip W is dropped from the punching hole 38 downward. Therefore, the chip W after passing through the position of the exclusion means 39 moves to the polyhedral inspection feeder 13 connected to the downstream side in the state which maintains in the appropriate posture all.

In the polyhedral inspection feeder 13, in the region of the upstream passage forming member 40, as shown in FIG. 12, the two inspection surfaces S1 and S2 are expressed above the groove 48. In this state, the first and second cameras 14 and 15 perform imaging and a predetermined inspection is performed by the image processing apparatus. Here, when either of the inspection surfaces S1 and S2 is judged to be a defective product, air is blown out from the air supply hole 55 into the grooves 48 so that the chip W blows out of the grooves 48. The suction pipe 50 is sucked into the suction pipe 50 which is always in the suction state and is recovered by the recovery box 56.

The chip W which does not become defective by the upstream side passage forming member 40 is rotated about 180 degrees by passing through the rotary feed part 41 (see FIG. 12). Then, in the state where the inspection surfaces S3 and S4 are exposed, the chip W moves into the groove 48 of the downstream passage forming member 42. Here, the same inspection as that performed in the region of the upstream passage forming member 40 is performed by the third and fourth cameras 15 and 16, and the chip W, which is determined to be a defective product in the same way, is the suction pipe 51 The chip W, which is a good product that is not sucked by the suction pipe 51 while being collected by the counter 63, is sequentially collected by the counter 63 and then collected by the third recovery device 53. do.

Therefore, according to such embodiment, since the structure which moves the chip W one by one using the belt B is employ | adopted, it is completely excluded to move in the state which the some chip W connected to mutually contact, It is possible to inspect the surface precision of each chip W efficiently and with high accuracy.

In the above embodiment, the punching hole 38 is formed so that the chip W is engaged and movable, but the upper end side of the belt B may be a cutout formed in a concave shape. In addition, the moving means 12 is sufficient as long as it can move the chips W one by one, and it is not limited to the belt B. As shown in FIG. In addition, the supply groove 31 in the supply means 11 is not limited to three rows, but may be three rows or less or three rows or more.

As described above, according to the present invention, corresponding to the mutual spacing of the engagement regions provided in the moving means, the inspection objects received and engaged in each engagement region are spaced at a constant interval from each other. Therefore, compared with the structure which conveys a test object by vibrating conventionally, the possibility that a some test object may continue is rolling can be prevented reliably, and, thereby, the inspection precision in an individual test object It is possible to secure the reliability.

In addition, the inspection object can be smoothly rotated by imitating the inner surface shape of the groove, and the inspection object can be moved along the groove without concealing the inspection surface of the inspection object.

When the inspection object is a rectangular parallelepiped or the like, the inspection surface can be symmetrically expressed on each side of the belt, so that inspection can be performed efficiently.

In addition, the state in which the inspection object is not supplied to the engaging region of the moving means can be reduced as much as possible, and it is possible to suppress the decrease in the inspection efficiency.

In addition, only the inspection object always held in a constant posture is sent out to the passage forming member side, and in this respect, the decrease in inspection efficiency can be suppressed.

The inspection can be performed with high accuracy by keeping the position of the inspection surface of the inspection object constant.

Claims (6)

A passage forming member having a groove for forming a passage of the inspection object, and a movement formed along the groove and engaging with the inspection object while exposing the inspection surface of the inspection object to the outside of the groove; Means, The passage forming member includes a rotary feed unit for rotating the inspection object a predetermined angle in the process of moving the inspection object, The moving means is provided with a belt, and the belt passes through the groove in a state in which the surface thereof is approximately vertical, and at the same time, engages the inspection objects one by one to allow rotation of the inspection objects. A feeder for polyhedron inspection, comprising fitting regions at predetermined intervals. A passage forming member having a groove for forming a passage of the inspection object, and a movement formed along the groove and engaging with the inspection object while exposing the inspection surface of the inspection object to the outside of the groove; A polyhedron inspection device comprising means, And means for supplying an inspection object provided in the moving means on an upstream side of the passage forming member, wherein the supplying means includes a plurality of supply passages for supplying the inspection object in a plurality of locations in the moving direction of the moving means. Polyhedron inspection device characterized in that. The polyhedral inspection apparatus according to claim 2, further comprising exclusion means for removing the inspection object when the inspection object that is engaged with the moving means is not in the proper engagement position. The polyhedral inspection apparatus according to claim 2 or 3, further comprising: posture holding means for holding the inspection surface at a predetermined position when the inspection object reaches a predetermined inspection position. delete delete

Images