JP2005187194A - Discrimination method for part attitude and part carrying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure a variation in detected light amount according to a part attitude to reduce erroneous detection by avoiding the detection of a light component which specifies light incidence range and light detection range for parts and obstructs the discrimination of the part attitude. <P>SOLUTION: In this method for discriminating the part attitude, illuminating light is radiated to the part through a radiating port 1c opening in a part passing area in carrying surfaces 1a and 1b, to which the part 10 is carried, formed by exposing a light transmitting material to a part of the outer surface thereof, the detection axis Dx of the detection light is set in a direction coming out of the radiating axis Cx of the illuminating light, the detection light outgoing along the detection axis is detected through a detection port 1d opening in a part passing area on the carrying surfaces, and the part attitude is discriminated by the light amount of the detected light. A radiating port and a detection port are disposed at positions facing the outer surface of a common part, and the interval between the radiating port and the detection port and the relative angle of the radiating axis to the detection axis are set so that direct reflected light of the illuminating light by the outer surface of the part does not become the detected light detected through the detection port. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a component orientation determination method and a component transport apparatus, and more particularly to a component orientation determination method suitable for application to a component supply device that supplies parts in a uniform orientation.

  In general, a component supply device that supplies electronic components and the like in a fixed posture is provided with a component processing unit for aligning the posture of the electronic components, and the electronic components are aligned in a fixed posture by the component processing unit. It is supplied to a component mounting apparatus or the like. The component processing unit consists of a method of mechanically aligning the posture of the component according to the shape of the conveyance path according to the shape of the component, and detecting the posture of the component on the conveyance path using an optical sensor, etc. Accordingly, there is known a method of aligning the posture of a component by removing the component or forcibly changing the posture of the component (see, for example, Patent Document 1 below).

In this case, a conventional method for detecting a component using an optical sensor is either a method using light transmission and blocking by the component, or a method using light transmission and reflection. Also known is a method of detecting the light by an opening provided on the transport surface and determining the component posture. (For example, see Patent Documents 2 and 3 below).
JP 2003-246440 A Japanese Utility Model Publication No. 07-12328 JP 2001-348117 A

  By the way, there are various parts to be conveyed, and a part including a light-transmitting material exposed in a part of the outer surface, for example, a substrate 10S that does not transmit light as shown in FIG. A component (LED: light emitting diode) 10 including a light transmissive lens 10L and a terminal 10E made of metal or the like formed at an end of a substrate 10S is known. In such a component 10, since the lens 10L has light transmittance, for example, when performing detection using a transmitted light type optical sensor provided with a slit having a width corresponding to the thickness of the substrate 10S, In the component 10 where the substrate 10S is thin, the irradiation light that has passed through the slit becomes easy to pass through the side of the substrate 10S, and when the component 10 jumps, the light that has passed through the slit is not blocked by the substrate 10S. There is a problem that it becomes impossible to distinguish.

  Further, since the position, width, and length of the slit for irradiating light must be determined according to the thickness of the entire component 10 and the thickness of the substrate 10S, the detection structure is changed according to the shape and size of the component 10. There is a problem that the production cost increases due to the necessity. Further, even if the detection structure is matched with the shape and size of the component 10, there is a problem that the posture cannot be determined because the light transmittance of the lens 10L is low and the substrate 10S is thin because the light transmission amount is small. .

  Furthermore, in the method for determining the component posture described in the conventional patent document, it is configured so that the directly reflected light generated on the outer surface of the component is also detected. There is a problem that the amount of change in the amount of light cannot be sufficiently secured, and the accuracy of determining the component posture cannot be increased. In particular, when there is a part that transmits light in the part, it is necessary to determine the difference from the case where the part is not present based on the difference in the transmittance, so that there is a problem that the determination of the part posture becomes more difficult. .

  Therefore, the present invention solves the above-described problems, and the problem is that it defines the incident range of illumination light on a component and the detection range of detection light detected through the component and hinders the determination of the component posture. An object of the present invention is to provide a method of discriminating a component posture with less false detection by avoiding the detection of light, ensuring a change in the amount of detection light according to the component posture.

  The component posture determination method of the present invention is a component posture determination method for detecting the posture of a component formed by exposing a light-transmitting material to a part of an outer surface, the method including: The detection light that irradiates the component with illumination light through an irradiation port that opens in a component passage region, sets a detection axis of detection light in a direction deviating from the illumination axis of the illumination light, and enters along the detection axis Is detected through a detection opening that opens in the component passage area of the transport surface, and the posture of the component is determined based on the amount of the detection light, and the irradiation port and the detection port are both on the outer surface of the common component. And the distance between the irradiation port and the detection port so that the direct reflected light of the illumination light from the outer surface of the component does not become the detection light detected through the detection port. The irradiation axis and the inspection Wherein the relative angle of the axis is set.

  According to this invention, when the said irradiation light is irradiated to the outer surface of components, even if the irradiation light is directly reflected by the said outer surface, the direct reflected light is not detected through a detection port. In addition, when irradiated light is irradiated through the irradiation port to the outer surface where the light-transmitting material is exposed, the irradiated light is introduced into the light-transmitting material and scattered or reflected inside, and the inside Scattered light and internally reflected light are again emitted from the outer surface of the component. Whether or not this internally scattered light or internally reflected light is detected through the detection port, and the amount of the detected light is the same as that of the irradiation port. It varies depending on the positional relationship of the detection port, the irradiation range and the detection range, the position and range of the light transmission part of the component, and the like. Therefore, it is possible to detect the change in the amount of detected light due to the internal scattered light or internal reflected light of the component without being affected by the direct reflected light from the outer surface of the component. A large amount can be secured, and the component posture can be easily and reliably determined.

  In this invention, it is preferable that the said irradiation port and the said detection port are arrange | positioned in the position which faces both from the same direction with respect to the outer surface of the said common component. According to this, in the case where both the irradiation port and the detection port face the light-transmitting material, there is no difference in the thickness of the light-transmitting material and no light transmission disposed behind the material. Since the change in the amount of detection light based on the presence or absence of a material or a material with low light transmittance is increased, it is possible to improve the ability to determine the component posture.

  In the present invention, it is preferable that the irradiation axis and the detection axis are configured in parallel. By making the irradiation axis and the detection axis parallel in this way, the change in the amount of the detection light described above can be further increased, so that the ability to discriminate the component posture can be further enhanced.

  In the present invention, two transport surfaces that face each other and intersect each other are provided, the irradiation port is formed on one of the transport surfaces, and the detection port is formed on the other transport surface. preferable. By providing an irradiation port and a detection port on each of the two transport surfaces that intersect with each other in this way, the relative angle between the irradiation axis and the detection shaft increases, but the distance between the irradiation port and the detection port can be reduced even if the parts are small. Since it becomes easy to ensure, it becomes easy to set the space | interval of an irradiation port and a detection port, and the relative angle of an irradiation axis | shaft and a detection axis so that the structural requirements of this invention may be satisfy | filled.

  In the present invention, it is preferable that the irradiation port or the detection port is also used as an air flow spray hole for blowing an air flow for removing the component or changing the posture. According to this, since the component posture can be detected and the component can be removed or the posture can be changed at the same site, the component processing unit for selecting and aligning the components can be configured compactly.

  In this case, it is desirable to control the presence / absence of airflow blowing through the irradiation port or the detection port according to the determination result of the component posture. According to this, since the detection position and the airflow blowing position are close to each other, it is possible to prevent the airflow blowing target part from being erroneously processed.

  A component conveying apparatus according to the present invention includes a component processing unit using any one of the above-described component attitude determination methods. The component conveying device is preferably a vibration type conveying device that moves the component on the conveying surface by vibrating the conveying path.

  Next, embodiments of the present invention will be described with reference to the accompanying drawings. First, the structure of the component 10 that is an object of posture determination in the embodiment described below will be described. However, the present invention is not limited to the component 10 described below, and widely includes components in which at least a light-transmitting material is exposed on a part of the outer surface.

  FIG. 1 is a schematic perspective view (a) of a component 10 in one posture arranged on the conveyance path 1, schematic perspective views (b)-(d) showing a component 10 in another posture, and a component. 10 is a plan view (e) and a side view (f). The lens 10L has a substantially hexahedron (cuboid) shape as a whole, and has a light transmission property, a substrate 10S that does not have a light transmission property, or has a light transmission rate smaller than that of the lens portion 10L, and a metal. And a pair of terminals 10E provided at both ends of the substrate 10S. The terminal 10E has a U-shaped cross section so as to protrude from the end surface of the substrate 10S to both the front and back surfaces. This component 10 is, for example, an LED (light emitting diode).

  In addition, as another component applicable to this invention, it has a hexahedron (cuboid) shape as a whole, and it is comprised so that a pair of terminal may coat | cover on the both ends of the ceramic substrate which has a light transmittance, A ceramic resistor in which a resistance layer is formed on one of the four surfaces excluding both end surfaces covered by the terminal and the ceramic substrate is exposed on the remaining three surfaces can be mentioned. In addition, examples of similar parts include ceramic capacitors, ceramic inductors, crystal resonators, and semiconductor chips. As these components, for example, extremely fine ones having a dimension of about 0.1 to 5.0 mm on a side are increasing in recent years.

[First Embodiment]
First, a first embodiment according to the present invention will be described with reference to FIGS. 2 to 4 and 9. In the present embodiment, the transport path 1 is provided with transport surfaces 1a and 1b extending in the extending direction thereof and orthogonal to each other, and two surfaces are in contact with the transport surfaces 1a and 1b. Thus, the component 10 is configured to be conveyed in the extending direction of the conveyance path. The conveyance path 1 is preferably vibrated by a vibrating body, and the component 10 is configured to move in the extending direction by the vibration. At this time, the component 10 is conveyed in a posture in which the pair of terminal portions 10E are arranged in the front and rear directions in the conveyance direction.

  FIG. 9 is a schematic perspective view showing a component conveying apparatus that constitutes the conveying path 1. The component conveying apparatus 100 includes a vibrating body 110 that is vibrated by a vibrator (not shown), and the vibrating body 110 includes a conveying path 1 along the vibration direction. Parts (not shown) arranged on the conveyance path 1 move in the direction of the arrow shown in the figure by vibration, and are aligned in a predetermined posture according to the shape of the conveyance path 1 while moving. Here, the vibration exciter can be configured by a driving means such as an electromagnetic driving body (solenoid) or a piezoelectric body and an elastic member such as a spring, as is well known. More specifically, the vibrating body 110 is a linear vibratory feeder in which the linear transport path 1 is configured, but may be a bowl-type vibratory feeder having a spiral transport path. .

  A component processing unit 120 is attached to the vibrating body 110. The component processing unit 120 determines the posture of the component 10 described above, and changes the posture by rotating the component 10 (for example, 90 degrees or 180 degrees) according to the determination result. Accordingly, the component 10 is excluded from the conveyance path 1. As a result, it is possible to carry most of the parts 10 being conveyed in the same posture as they are. Here, when the component processing unit 120 is configured to perform the component orientation changing process, by providing N-1 serially according to the number N of orientations that the component can take, the component processing unit 120 It is possible to align all the parts in the same posture without eliminating.

  As shown in FIG. 2, the component processing unit 120 is provided with an optical detection device 121 that irradiates the component 10 with illumination light for detecting the component posture and detects detection light returned from the component 10. . The optical detection device 121 is connected to another main detection device (not shown) including a light emitting element (for example, LED; light emitting diode) and a light receiving element (for example, photodiode) (not shown) through optical fibers 122 and 123. The front end face of the optical fiber is a light emitting part 122a and a light receiving part 123a. And these light emission part 122a and light-receiving part 123a (front-end | tip surface) are arrange | positioned so that the irradiation port 1c opened to the conveyance surface 1a and the detection port 1d may each be faced.

  In addition, by introducing a gas such as compressed air supplied from a compressed air source (not shown) from a portion indicated by an arrow in the component processing unit 120, an air flow is ejected from an air flow blowing port 1 e opened on the conveying surface 1 b. The component 10 can be sprayed. The component 10 can be removed from the conveying path 1 by this air flow. Note that FIG. 2 shows an example in which the component 10 is removed by the air flow ejected from the air flow blowing port 1e, but the cross-sectional shape of the transport path 1 is changed (for example, to a V-shaped or W-shaped cross section). It is possible to change the posture of the component 10 by the airflow.

  As shown in FIGS. 3 and 4, the irradiation port 1 c and the detection port 1 d formed on the transport surface 1 a are part 10 from the same side (lower side in the drawing) with respect to the part 10 arranged on the transport path 1. It is configured to face the outer surface of the. More specifically, both the irradiation port 1c and the detection port 1d are opened on the transport surface 1a. In the illustrated example, the irradiation port 1c and the detection port 1d are arranged along the conveying direction of the component 10 (shown by an arrow). And the light emission part 122a of the optical detection apparatus 121 faces the said irradiation port 1c from the other side of the conveyance path 1, and it is comprised so that light can be irradiated on the conveyance surface 1a through this irradiation port 1c. Further, the light receiving portion 123a of the optical detection device 121 is configured to be able to detect light returning from the conveyance surface 1a through the detection port 1d from the opposite side of the conveyance path 1 to the detection port 1d.

  In the present embodiment, the irradiation axis Cx that is the axis of the irradiation port 1c and the detection axis Dx that is the axis of the detection port 1d are set to be parallel (that is, the relative angle is 0 degree). Moreover, the space | interval is set so that the irradiation port 1c and the detection port 1d may face both with respect to the outer surface of the common component 10. FIG. More specifically, the irradiation axis Cx and the detection axis Dx pass through the component 10 (the outer surface on the conveyance surface 1a side) together with any component posture that can be considered for the component 10 moving on the conveyance path 1. The interval is set so that it does.

  In the present embodiment, the distance between the irradiation port 1c and the detection port 1d is increased to some extent so that the directly reflected light generated when the illumination light emitted from the irradiation port 1c hits the outer surface of the substrate 10S is not detected through the detection port 1d. Is set to In the illustrated component 10, since the terminal 10E has a certain thickness, when the component 10 is transported in the posture shown in FIG. 3, there is a gap between the outer surface of the substrate 10S and the transport surface 1a. For this reason, if the distance between the irradiation port 1c and the detection port 1d is small, the directly reflected light generated when the illumination light hits the outer surface of the substrate 10S enters the detection port 1d and is detected. Accordingly, if the outer surface of the component 10 is in close contact with the transport surface 1a in any posture, the interval may be further reduced.

  As described above, in the present embodiment, the distance between the irradiation port 1 c and the detection port 1 d is equal to or less than the maximum interval that can face the common component 10, and the directly reflected light generated on the outer surface of the component 10. Is set to be equal to or greater than the minimum interval at which no detection is made. The distance (the distance between the irradiation axis Cx and the detection axis Dx) is, for example, that the length of the substrate 10S in the longitudinal direction of the component 10 (the horizontal direction in the component orientation shown in FIG. 3) is 1.6 mm and the length of the lens 10L. When it is 1.0 mm, it is preferably within the range of 0.5 to 1.0 mm, and particularly preferably about 0.8 mm. In addition, the diameter of the irradiation port 1c and the detection port 1d at this time is preferably in the range of 0.3 to 0.8 mm, and particularly preferably about 0.5 mm.

  Furthermore, in the present embodiment, the opening surface of the irradiation port 1c is configured to be smaller than the light emission area (end surface area) of the light emitting portion 122a. Furthermore, the opening surface of the detection port 1d is configured to be smaller than the light receiving area (the end surface area) of the light receiving unit 123a. Thereby, even if the space | interval of the irradiation port 1c and the detection port 1d is changed to some extent according to the shape dimension of the components 10, the advantage that the common optical detection apparatus 121 can be used is brought about.

  In the present embodiment, when the component 10 has been transported in the posture shown in FIG. 3, the amount of detection light is almost zero due to the above configuration. On the other hand, when the component 10 is conveyed in the upside down posture shown in FIG. 4, the irradiation light irradiated through the irradiation port 1c enters the lens 10L having optical transparency, and this inside The internally scattered light scattered by the light and the internally reflected light reflected by the inner surface of the substrate 10S are detected through the detection port 1d. Further, in the case of the sideways posture as in the subsequent component 10 in FIG. 4, although the internal scattered light is detected, the internal reflected light is hardly detected, so the amount of the detected light is larger than that in the reverse posture. Low level.

  Therefore, depending on the light intensity level of the detection light, the component posture shown in FIG. 1A (for example, non-defective posture), the component posture shown in FIG. 1B (for example, defective posture 1), and the component posture shown in FIG. (For example, the defective posture 2) or the component posture (for example, the defective posture 3) shown in FIG. It is also possible to discriminate between the defective posture 1 and the defective posture 2 or 3. Further, the defective postures 2 and 3 can be determined by appropriately adjusting the positions of the irradiation port 1c and the detection port 1d in the direction orthogonal to the paper surface of FIGS.

  In the present embodiment, direct reflection light generated on the outer surface of the component 10 is not detected, and light is transmitted through a part of the outer surface by using internally scattered light and internally reflected light by the light transmitting portion. It is now possible to easily and accurately determine the posture of a part formed by exposing a sex material. In particular, in the case where a part (lens 10L) that allows light to pass through partially exists as in the above-described component 10, when a light transmission type sensor is used, the light level that is detected through the part is detected. Therefore, it is difficult to detect the component itself when the light transmittance of the portion is high. However, in the present embodiment, the irradiation axis Cx is determined as the light level when the component is not present. Such a problem does not occur because the detection axis Dx does not coincide.

  In this embodiment, the irradiation port 1c, the detection port 1d, and the airflow blowing port 1e are provided separately, but at least one of the irradiation port 1c or the detection port 1d can also be used as the airflow blowing port. It is. In this case, the component processing unit 120 can be configured more compactly, and the detection position of the component posture and the processing position of the component are close to each other, so even when the component is conveyed at high speed, Processing errors such as processing a part different from the detected part can be prevented.

  In the above-described embodiment, the irradiation axis Cx and the detection axis Dx are set in parallel. However, even if they are not necessarily parallel, both the common component 10 and the common component 10 have a relationship between the irradiation port 1c and the detection port 1d. It is only necessary that the relative angle is set within a range where the light reflected directly from the outer surface of the component 10 is not detected.

  Moreover, in the said embodiment, although the irradiation port 1c is formed in the downstream of the conveyance path 1, and the detection port 1d is formed in the upstream, on the contrary, the irradiation port in the upstream of the conveyance path 1 is formed. 1c may be formed, and the detection port 1d may be formed on the downstream side thereof. Further, unlike the above embodiment, the irradiation port 1c and the detection port 1d may be arranged in a direction orthogonal to the conveyance direction of the conveyance path 1 or may be arranged obliquely with respect to the conveyance direction. I do not care.

[Second Embodiment]
Next, a second embodiment according to the present invention will be described with reference to FIGS. 5 to 8 and FIG. FIG. 10 is a schematic perspective view showing the component conveying apparatus 200 of the present embodiment. Similar to the component conveying apparatus 100, the component conveying apparatus 200 includes a vibrating body 210 that vibrates by a vibrator (not shown), and a component processing unit 220 attached to the vibrating body 210. The vibrating body 210 is formed with the same conveyance path 2 as described above. The transport path 2 is provided with transport surfaces 2a and 2b similar to the above.

  As shown in FIG. 5, the component processing unit 220 is provided with an illumination device 221, and a light emitting element (not shown) is accommodated in the illumination device 221. Moreover, the light emission part (optical fiber) 222 connected to this light emitting element is configured to face the irradiation port 2c formed on the transport surface 2a from the opposite side of the transport path 2. The wiring 224 is for supplying power to the lighting device 221. On the other hand, another detection surface 2b intersecting with the conveyance surface 2a is provided with a detection port 2d. The light detection surface connected to the light receiving element of the light detection device 223 is opposite to the conveyance path 2 in this detection port 2d. It is configured to face from. The wiring 225 supplies power to the light detection device 223. The illumination device 221 and the light detection device 223 may be configured to guide light from outside like the optical detection device of the first embodiment, and may be configured to detect light outside.

  As shown in FIG. 6, in this embodiment, the irradiation axis Cx constituted by the irradiation port 2c and the detection axis Dx constituted by the detection port 2d are substantially orthogonal (that is, the relative angle is 90 degrees). Is set). However, the relative angle between the irradiation axis Cx and the detection axis Dx is configured so that direct reflected light from the outer surface of the component 10 is not detected, and is 90 degrees as long as it faces the outer surface of the common component 10 together. It doesn't have to be. Further, the interval between the irradiation port 2c and the detection port 2d is also set so that the light directly reflected by the outer surface of the component 10 is not detected, and is in a range that faces the outer surface of the common component 10 together. Is done. In particular, it is desirable that the difference in the amount of detection light is set as large as possible due to the difference in the posture of the component 10.

  In the present embodiment, the detection port 2d communicates with a gas supply path connected to a device for supplying a gas such as compressed air (not shown), and also serves as an airflow spray port. Thus, the component processing unit 220 can be configured in a compact manner. In addition, since the detection position of the posture of the component 10 and the removal position of the component 10 (or the change position of the component posture) by blowing airflow can be brought close to each other, the component 10 corresponding to the detected component posture is processed without error. can do.

  FIG. 6 shows the posture of the component 10 in which the substrate 10S faces the transport surface 2a. In this case, the illumination light emitted from the irradiation port 2c is blocked by the substrate 10S, so that almost no detection light is detected. . FIG. 7 shows the posture of the component 10 in which the substrate 10S is arranged on the side opposite to the transport surface 2a. In this case, the illumination light irradiated from the irradiation port 2c enters the lens 10L and is scattered inside. The internally scattered light thus formed and the internally reflected light reflected internally are detected as detection light. FIG. 8A shows the posture of the component 10 in which the substrate 10S is disposed on the opposite side of the transport surface 2b. In this case, the detection is performed when all of the illumination light irradiated from the irradiation port 1c is blocked by the substrate 10S. If at least a part of the illumination light is incident on the lens 10L without detecting the light, the internal scattered light and the internal reflected light are detected as detection light although they are slight. FIG. 8B shows the posture of the component 10 with the substrate 10S facing the transport surface 2b. In this case, even if illumination light enters the lens 10L, the detection port 2d is closed by the substrate 10S. Therefore, no detection light is detected.

  In the present embodiment, the component posture shown in FIG. 6 and the component posture shown in FIG. 8B cannot be distinguished from each other, but the component posture is reversed by twisting the conveyance path 2 by 90 degrees. Thus, both postures can be discriminated by discriminating the component postures again by the same method. Moreover, you may provide the component attitude | position detection part different from the above separately.

  Further, in order to clearly discriminate between the component posture shown in FIG. 7 and the component posture shown in FIG. 8A, an area in which the detection port 2d is closed by the substrate 10S in the component posture shown in FIG. In the component posture shown in FIG. 8A, it is preferable to increase the difference from the area where the irradiation port 2c is closed by the substrate 10S. In this case, the detection port 2d or the irradiation port 2c may not be completely closed by the substrate 10S in any one of the component postures.

  In the present embodiment, the irradiation port 2c is opened on the conveyance surface 2a on the lower side of the component 10, and the detection port 2d is opened on the conveyance surface 2b on the side of the component 10, but conversely, The irradiation port 2c may be opened on the conveyance surface 2b on the side of the component 10, and the detection port 2d may be opened on the conveyance surface 2a on the lower side of the component 10.

  It should be noted that the component orientation determination method and the component transport apparatus according to the present invention are not limited to the above-described illustrated examples, and various changes can be made without departing from the scope of the present invention. For example, in the above-described embodiment, the case where an electronic component is transported (supplied) as the component 10 has been described. However, the present invention is not limited to such an electronic component, and can be similarly applied to various components other than the electronic component. . In addition, each embodiment is merely an example of the embodiment of the present invention, for example, a structure of a light emitting element or a light receiving element, a structure of an optical detection device, an illumination device or a light detection device, a structure of a conveyance path, There is no limitation on the part shape and dimensions.

The schematic perspective view (a)-(d) which shows an example of the components used as the discrimination | determination object of the discrimination | determination method of a component attitude | position, the top view (e), and side view (f) of components. The schematic sectional drawing which shows the structure of the components process part of 1st Embodiment. The expanded sectional view of the parts processing part of a 1st embodiment. The expanded sectional view of the component process part of 1st Embodiment shown with the components in a different component attitude | position. The schematic sectional drawing which shows the structure of the components process part of 2nd Embodiment. The expanded sectional view of the parts processing part of a 2nd embodiment. The expanded sectional view of the component process part of 2nd Embodiment shown with the components in a different component attitude | position. Furthermore, the expanded sectional view (a) and (b) of the component process part of 2nd Embodiment shown with the components in a different component attitude | position. The schematic perspective view of the vibrating body of the components conveying apparatus of 1st Embodiment. The schematic perspective view of the vibrating body of the components conveying apparatus of 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 ... Conveyance path, 1a, 1b, 2a, 2b ... Conveyance surface, 1c, 2c ... Irradiation port, 1d, 2d ... Detection port, 10 ... Parts, 10E ... Terminal part, 10S ... Substrate, 10L ... Lens, 100 ... Parts conveying device, 110 ... vibrating body, 120 ... part processing unit, Cx ... irradiation axis, Dx ... detection axis

Claims (7)

A component posture determination method for detecting the posture of a component formed by exposing a material having optical transparency to a part of an outer surface,
The component is irradiated with illumination light through an irradiation port that opens in a component passage area on a conveyance surface on which the component is conveyed, and a detection axis of detection light is set in a direction away from the illumination axis of the illumination light, and the detection is performed. The detection light incident along the axis is detected through a detection opening that opens in a component passage area of the transport surface, and the component posture is determined based on the amount of the detection light.
The irradiation port and the detection port are arranged at positions facing both of the common outer surfaces of the components, and the direct reflected light of the illumination light by the outer surfaces of the components is detected through the detection ports. A method of determining a component posture, wherein an interval between the irradiation port and the detection port and a relative angle between the irradiation axis and the detection axis are set so as not to become detection light.   2. The component posture determination method according to claim 1, wherein the irradiation port and the detection port are arranged at positions facing both of the common outer surfaces of the component from the same direction.   The method of determining a component posture according to claim 2, wherein the irradiation axis and the detection axis are configured in parallel.   The two transport surfaces facing each other and intersecting each other are provided, the irradiation port is formed on one of the transport surfaces, and the detection port is formed on the other transport surface. Item 2. A method of determining a component posture according to Item 1.   5. The component posture according to claim 1, wherein the irradiation port or the detection port is also used as an airflow blowing hole for blowing an airflow for removing the component or changing the posture. How to determine.   6. The method of determining a component posture according to claim 5, wherein the presence / absence of airflow through the irradiation port or the detection port is controlled according to the determination result of the component posture. A component conveying apparatus comprising: a component processing unit using the component attitude determination method according to claim 1.

Images