TWI794762B - Photographing apparatus for processing equipment of electronic components - Google Patents

Abstract

The present invention relates to a photographing device used in electronic component processing equipment. The imaging device according to the present invention has an installation structure in which the irradiation direction of the laser irradiator is the horizontal direction or the imaging center line of the confirmation camera is parallel to the horizontal line. According to the present invention, it is possible to set an appropriate angle between the focal length and the angle of view of the camera for confirmation and the irradiation direction of the laser and the imaging direction while being installed in a narrow installation space, so that the electronic components mounted on the mounting element can be improved. The reliability of the check of whether the placement is bad.

Description

Camera for electronic component processing equipment

The present invention relates to a technique for grasping the placement state of each electronic component mounted on a loading element in an electronic component processing facility that individually manages and processes electronic components.

The produced electronic components are shipped through various forms of processes such as testing process and sorting process. In this program, electronic component processing equipment for processing electronic components is used.

Electronic component processing equipment can be manufactured in various forms according to its work function. For the operation of supplying or collecting electronic components to such electronic component processing facilities, and the operation of moving electronic components, loading elements capable of loading electronic components are used. The loading element can be manufactured in various forms depending on the kind of electronic parts, the type of operation used, and the like.

In the case of using a loading element, it is possible to move the electronic component from the loading element to another loading element, or to perform required processing operations on the electronic component while being mounted on the loading element. Therefore, in order to properly move the electronic components or perform proper handling operations on the electronic components, it is required that the electronic components are correctly seated on the loading element. Otherwise, if the electronic components are loaded on the loading element in a defective mounting state, defects will occur in the moving operation or handling operation. Therefore, in order to confirm the loading error of electronic components, the present applicant proposed Korean Patent Laid-Open No. 10-2016-0018211 and No. 10-2017-0093624 (hereinafter referred to as "cited technology 1").

In Cited Technology 1, after irradiating lasers and taking pictures with a camera, the pattern of the taken laser beams is analyzed, whereby it is possible to confirm a loading error of an electronic component. For this cited technique, the irradiation direction of the laser and the shooting direction of the camera must be separated by a predetermined angle. This is because, if the irradiation direction of the laser is parallel to the imaging direction, it is difficult to observe the pattern change of the laser. Moreover, the laser must be irradiated to the part to be observed, and the camera can only observe the part where the laser is irradiated in the center of the camera lens, so as to ensure the accuracy of the image. Accordingly, the laser irradiator and the camera need to be arranged so that there is a predetermined angle between the irradiation direction of the laser and the photographing direction by the camera, whereby the laser irradiator and the camera are separated by a considerable distance.

However, as cited in Technology 1, if the laser irradiator and the camera are separated by a considerable distance, the space for arranging the corresponding components needs to be increased, so the design for eliminating interference with other devices, etc. complex. Therefore, depending on the equipment, it may occur that it is difficult to secure a space for configuring the laser irradiator and the camera. In addition, such a problem is that it becomes difficult to additionally install a laser irradiator and a camera in a device that is used on-site after each configuration is produced in an optimally designed state. An example of such a problem will be described with reference to FIGS. 1 and 2 .

The picker module PM equipped with the processing equipment PE is used to move the electronic components from one side loading element to the other side loading element, and when considering the movement area MS of the picker module PM, it is used to set the setting of the photographing device The space IS is only allowed in the range except the oblique area SF and the mobile area MS with other structures. That is, in the processing equipment PE of FIG. 1, the installation space IS can be secured at the front end of the moving area MS, whereas in the processing equipment PE of FIG. 2, the installation space IS can be secured on the left or right side of the moving area MS. Of course, even if there is an installation space IS, its front-to-back, left-right, and top-bottom widths are very narrow, so in particular, the overall front-to-back width of the imaging device to be applied to the processing equipment PE of FIG. 1 and the processing to be applied to FIG. 2 should be minimized. The overall left and right width of the imaging device of the equipment, and at the same time, the focal length of the camera, the angle of view, and the angle between the laser irradiation direction and the shooting direction of the camera must be sufficiently ensured.

Based on the aforementioned reasons, the present applicant proposed arranging a confirmation camera and a laser irradiator adjacently and combining them with a pick-up The structure of the device module.

Cited technique 2 provides the freedom to add a camera without minimally enlarging the size of the processing equipment to be produced or without changing the structure of the existing produced processing equipment. In addition, since the imaging device is designed to be movable in combination with the pickup module, it is possible to check the loading failure of all the loading elements in charge of one pickup module, thereby minimizing the construction cost.

However, since the processing equipment PE is mainly custom-made by customers, the location of the setup space IS may differ from equipment to equipment. Therefore, it is still difficult to properly apply the photographing device according to Cited Technique 2 to all processing equipment, especially all processing equipment currently produced and in use.

In addition, in Cited Technology 2, the irradiation angle of the laser irradiator or the imaging angle of the camera for bending confirmation is bent by providing a reflector, so that the installation property in a narrow space is improved. However, in order to achieve proper reflection of the reflector, ensure the proper focal length and viewing angle of the camera for confirmation, and obtain an appropriate image for accurately recognizing changes in the laser pattern, the difference between the irradiation direction of the laser and the shooting direction of the camera for confirmation is set. The appropriate angle between them, etc., is preferably 90 degrees through the bending of the reflector. For this reason, the reflector needs to be set at an angle of 45 degrees relative to the irradiation direction of the laser or the center line of the camera for confirmation. However, it can be confirmed that it is difficult to realize such a setting by citing technique 2.

Furthermore, in order to improve the resolution, it is necessary to separate the distance between the camera for confirmation, the laser irradiator, and the reflector at such a distance that the focal length of the camera for confirmation can be ensured. Or because of the narrowness of the installation space IS, when the structure of cited technique 2 is followed, it often happens that such a separate space cannot be ensured.

In addition, referring to Korean Laid-Open Patent No. 10-2015-0041682, as shown in FIG. 3 , it can be seen that the loading surface Lf of the customer tray CT serving as a loading element is located at a lower position than the upper surface of the substrate BP. In this case, when the laser irradiator LI irradiates the laser L obliquely, the laser L irradiated by the laser irradiator LI cannot reach the electronic part D loaded on the last part of the customer tray CT due to being blocked by the chassis BP, Therefore, there is a need for a structure of an imaging device that can also solve the above-mentioned problems.

Focusing on the present invention, there are the following motivations. First, there is a need to realize a structure capable of minimizing the installation space for installing the inspection section. Second, it is necessary to implement a structure that can bend the irradiation direction of the laser passing through the laser irradiator or the photographing angle of the confirmation camera by 90 degrees while the photographing device is installed on the pickup module. Third, even if the installation space is small, the focal length and angle of view of the camera for confirmation can be secured. Fourth, even if the installation space is narrow, the imaging direction and the irradiation direction of the laser can be set to have an angle at which the pattern change of the laser can be sufficiently recognized. Fifth, even if the mounting surface of the mounting element is lower than the upper surface of the substrate, a structure is required so that the laser irradiated by the laser irradiator can reach the electronic component without being blocked by the chassis.

An imaging device for electronic component processing equipment according to a first aspect of the present invention includes: a laser irradiator configured to irradiate a linear laser to an upper surface of an electronic component mounted on a loading element, and to irradiate the laser in a horizontal direction. The camera for confirmation is equipped to confirm the installation state of the electronic components loaded on the loading element by photographing the laser irradiated by the laser irradiator; Reflecting towards the electronic component located vertically below, so that the confirmation camera can photograph the electronic component irradiated with laser; the mover moves the laser irradiator, the confirmation camera and the reflector in the horizontal direction, enabling the confirmation camera to photograph electronic components at two or more positions; and a controller controlling the laser irradiator, the confirmation camera, and the mover, wherein the laser irradiator, the The confirmation camera and the reflecting plate are coupled to each other so as to be movable together by the mover.

The laser irradiator, the confirmation camera, and the reflector are provided in combination with a picker module including a picker capable of gripping or releasing the electronic component in order to move the electronic component. The laser irradiator is arranged in front of the pickup so as to irradiate the laser backward, and the reflection plate is arranged between the laser irradiator and the pickup.

The confirmation camera is arranged in front of the pickup module and in the direction of the upper side of the laser irradiator, and the shooting center line of the confirmation camera has an inclination angle greater than 0 degrees and less than 90 degrees relative to the vertical line .

The loading surface of the loading element is located below the upper surface of the substrate for fixing the edge of the loading element, and the inclination of the imaging center line is set so that when imaging with the confirmation camera, Interference between a shooting center line of the confirmation camera and the chassis is prevented at at least one shooting location.

The controller controls the laser irradiator, the confirmation camera, and the mover so that the confirmation camera moves in one direction and can photograph electronic components arranged on the loading element, for The movement distance of the reflection plate in one direction captured by the confirmation camera is longer than the arrangement distance of the electronic components arranged on the loading element in one direction, and the arrangement distance is within the movement distance, The arrangement distance is defined as the distance between the position of the reflector at the time point when the first electronic component is photographed by the confirmation camera and the position of the reflector at the time point when the last electronic component is photographed.

The moving distance is divided into an accelerated moving section in which the reflecting plate moves at an accelerated speed, a constant moving section in which the reflecting plate moves at a constant speed, and a decelerated moving section in which the reflecting plate moves at a decelerated speed. In the constant-speed movement section, the controller controls so that the electronic component by the confirmation camera is photographed while the reflector moves at a constant speed in the constant-speed movement section.

According to a second aspect of the present invention, an imaging device for electronic component processing equipment includes: a laser irradiator equipped to irradiate a linear laser on the upper surface of an electronic component mounted on a loading element; The laser irradiated by the laser irradiator is photographed to confirm the installation state of the electronic components loaded on the loading element, and the photographing center line thereof is parallel to the horizontal line; The direction of the upper surface is curved, so that the confirmation camera can photograph the upper surface of the electronic component irradiated with laser; the mover moves the laser irradiator, the confirmation camera and the reflector in the horizontal direction , enabling the confirmation camera to photograph electronic components at two or more positions; and a controller controlling the laser irradiator, the confirmation camera, and the mover, wherein the laser irradiator, the The confirmation camera and the reflection plate are combined with each other so as to be movable together by the mover.

The laser irradiator, the confirmation camera, and the reflector are provided in combination with a picker module including a picker capable of gripping or releasing the electronic component in order to move the electronic component. The confirmation camera is arranged in a left or right direction of the pickup so as to photograph the front, and the reflection plate is arranged in front of the confirmation camera.

The laser irradiator is arranged behind the confirmation camera.

The laser irradiator, the camera for confirmation, and the reflector are arranged side by side in one direction.

The controller controls the laser irradiator, the confirmation camera, and the mover so that the confirmation camera moves in one direction and can photograph electronic components arranged on the loading element, for The movement distance of the reflection plate in one direction captured by the confirmation camera is longer than the arrangement distance of the electronic components arranged on the loading element in one direction, and the arrangement distance is within the movement distance, The arrangement distance is defined as the distance between the position of the reflector at the time point when the first electronic component is photographed by the confirmation camera and the position of the reflector at the time point when the last electronic component is photographed.

The moving distance is divided into an accelerated moving section in which the reflective plate moves at an accelerated speed, a constant moving section in which the reflecting plate moves at a constant speed, and a decelerated moving section in which the reflective plate moves at a decelerated speed, and the arrangement distance is between the In the constant-speed movement section, the controller controls so that the electronic component by the confirmation camera is photographed while the reflector moves at a constant speed in the constant-speed movement section.

According to the present invention, the following effects are also obtained in the case where the inspection portion is arranged to occupy only a small area. First, the installation space required for installing the inspection section can be minimized, thereby minimizing the enlargement of the processing facility, or the inspection section can be properly installed in the existing processing facility. Second, it is possible to have an arrangement structure capable of bending the irradiation direction of the laser beam passing through the laser irradiator or the shooting angle of the camera passing through the confirmation by 90 degrees. Third, since it can be arranged so that the imaging center line of the confirmation camera and the irradiation direction of the laser irradiator have an angle at which a difference in pattern change can be clearly confirmed, the reliability of the inspection is improved. Fourth, since the focal length and angle of view of the checking camera can be sufficiently ensured, a clear image can be obtained, thereby further improving the reliability of the inspection. Fifth, according to an embodiment of the present invention, it is possible to confirm whether or not all electronic components are badly placed even if the mounting surface of the mounting element is lower than the upper surface of the substrate.

The preferred embodiments according to the present invention will be described with reference to the drawings. For the sake of brevity, descriptions of known or repeated or substantially the same configurations are omitted or compressed as much as possible.

The photographing device for electronic parts processing equipment (hereinafter, simply referred to as "photographing device") according to the present invention may have an example located in front of the moving area as shown in FIG. 1 and a left or right side of the moving area as shown in FIG. The example on the right will therefore be described separately for different embodiments. first embodiment

This embodiment can be preferably applied when the setting space IS is ensured in front of the moving area MS as shown in FIG. 1 .

As shown with reference to FIG. 4 , the photographing apparatus 100 according to the first embodiment of the present invention includes an inspection part PP, a forward and backward mover 150 , a left and right mover 160 , a vertical mover 170 and a controller 180 .

The inspection part PP is combined with the pickup module PM so that it can move together with the pickup module PM. As shown in the exploded view of FIG. 130 and setting parts 141 to 145.

The laser irradiator 110 is equipped to irradiate a linear laser on the upper surface of the electronic component mounted on the loading element. Such a laser irradiator 110 is installed so as to irradiate laser toward the rear as the horizontal direction. For this, as shown in the schematic diagram with reference to FIG. 6 , the laser irradiator 110 is arranged in front of the pickup P of the pickup module PM. Here, the picker P is a tool for gripping or releasing the electronic component D by vacuum suction force.

The confirmation camera 120 is equipped to confirm the placement state of the electronic components mounted on the loading element by imaging the laser irradiated by the laser irradiator 110 . As shown with reference to FIG. 6 , the confirmation camera 120 of this embodiment is arranged in front of the pickup module PM and above the laser irradiator 110 . And, the camera 120 for confirmation is installed obliquely so that the imaging center line CL may have an inclination angle θ larger than 0 degrees and smaller than 90 degrees with respect to the vertical line PL.

The reflector 130 bends and reflects the laser irradiated backward by the laser irradiator 110 by 90 degrees toward the electronic component D located vertically below, so that the confirmation camera 120 can image the electronic component irradiated with the laser. Such a reflection plate 130 is arranged to form an angle of 45 degrees with respect to the laser irradiation direction, and is arranged between the laser irradiator 110 and the pickup P in the front-rear direction.

The installation members 141 to 145 are provided for installation of the laser irradiator 110 , the confirmation camera 120 , and the reflection plate 130 . Therefore, the laser irradiator 110 , the camera for confirmation 120 , and the reflection plate 130 are separated from each other by a predetermined interval, and are attached to each other by being mounted on the installation members 141 to 145 . In addition, the installation parts 141 to 145 are coupled to the pickup module PM to move together with the pickup module PM. Therefore, the laser irradiator 110, the confirmation camera 120, and the reflection plate 130 fixedly installed on the installation parts 141 to 145 Finally, it is combined with the pickup module PM to move together with the pickup module PM. In addition, the setting members 141 to 145 also function as shielding members for blocking external noise light from entering the confirmation camera 120 and the reflection plate 130, thereby preventing distorted shooting due to external noise light. . Furthermore, the installation parts 141 to 145 surround the laser irradiator 110, the camera 120 for confirmation, and the reflector 130, thereby also functioning as a function of protecting the laser irradiator 110, the camera 120 for confirmation, and the reflector 130 from other structures or unintended consequences. The effect of the protective component on the expected impact of other contacts. In addition, the setting parts 141 to 145 also function to protect users.

The front-back mover 150 moves the pickup module PM in the front-back direction, and finally moves the laser irradiator 110 , the confirmation camera 120 , and the reflector 130 in the front-back direction.

The left-right mover 160 moves the pickup module PM in the left-right direction, and finally moves the laser irradiator 110 , the confirmation camera 120 , and the reflector 130 in the left-right direction.

The vertical mover 170 moves the pickup module PM vertically, and finally moves the laser irradiator 110 , the confirmation camera 120 , and the reflector 130 vertically. Therefore, the camera 120 for confirmation can be positioned at the appropriate height which can image|photograph the electronic component D by appropriate operation|movement of the vertical shifter 170. FIG.

The above-mentioned forward and backward mover 150 , left and right mover 160 , and vertical mover 170 are also finally used to move the electronic component D using the picker module PM. Moreover, according to the present embodiment, the front and rear mover 150 moves the laser irradiator 110, the confirmation camera 120, and the reflector 130 forward during the photographing operation, so that the confirmation cameras 120 are arranged electronically in the front-rear direction. The upper side of part D moves and photographs all electronic part D tools in action. That is, since a plurality of electronic components are arranged in a matrix form on the mounting element, the confirmation camera 120 can image the electronic components D while moving by the forward and backward mover 150 . Of course, if the inspection part PP is not a structure that moves together with the pickup module PM but is fixed at a certain position and the loading element moves to photograph the electronic component D, the above-mentioned before and after is omitted from the configuration of the photographing device 100 A mover 150 , a left-right mover 160 and a vertical mover 170 .

The controller 180 controls the operation of the automatic operation configuration including the laser irradiator 110 , the camera 120 for confirmation, and the movers 150 , 160 , and 170 during the imaging operation. Such a controller 180 has an analysis unit that analyzes the pattern of the laser light from the image from the confirmation camera 120 to determine whether or not the electronic component D is defectively mounted.

Next, the operation of the photographing apparatus 100 performed according to the control of the controller 180 will be explained.

When a customer tray CT, which is a type of loading element, is supplied to the imaging position, as shown in FIG. 7( a ), the controller 180 controls the back-and-forth mover 150 to move the confirmation camera 120 back as far as possible. Then, as shown in (b) of FIG. 7 , the passage confirmation is performed from the time point when the pickup module PM moves forward and the reflection plate 130 is located above the electronic component _D1 loaded on the rearmost side of the customer tray CT. After the imaging by the camera 120 , as shown in FIG. 7( c ), the imaging is performed until the reflector 130 is located above the electronic component _D2 placed on the front of the customer tray CT. Then, as shown in FIG. 7( d ), after the reflective plate 130 further moves forward by a predetermined distance from the time point when the last shot was taken, the movement of the inspection portion PP ends. Here, when the position of the reflector 130 at the time point when the camera 120 photographs the first electronic component D ₁ (the electronic component located at the rear of the customer tray) is compared with the position of the last electronic component D ₂ (located at the rear of the customer tray) When the distance between the positions of the reflector 130 at the time point of the frontmost electronic component) is defined as the arrangement distance S where the electronic components are arranged, for the accuracy of shooting, preferably, when the camera 120 is used to confirm the shooting The moving distance M of the reflecting plate 130 moving forward during operation is longer than the arrangement distance S, and the arrangement distance S is within the movement distance M. FIG. This is because, in order to increase the processing capacity, the inspection part PP including the reflection plate 130 needs to continuously move without stopping. The interval of S moves at a constant speed. Therefore, the movement of the reflector 130 needs to be controlled in the order of accelerated movement, constant speed movement, and decelerated movement after the reflection plate 130 starts to move from the stopped state to the stopped state again. In other words, the moving distance M can be divided into an accelerated moving section A in which the reflecting plate 130 moves at an accelerated speed, a constant moving section E in which the reflecting plate 130 moves at a constant speed, and a decelerated moving section R in which the reflecting plate 130 decelerates. The arrangement distance S is at least It is consistent with the constant speed movement interval E or within the constant speed movement interval E. Therefore, the controller 180 performs control so that when the reflector 130 moves at a constant speed in the constant speed movement section E, the electronic component D passes through the confirmation camera 120 to be photographed.

In addition, according to the imaging device 100 of this embodiment, since the laser beam is bent by 90 degrees by the reflector 130 and enters the electronic component D, even if the loading surface Lf of the customer tray CT is located on the board BP for fixing the edge of the customer tray CT Below the upper surface of the substrate, the situation that the laser irradiated by the laser irradiator 110 is blocked by the substrate BP and cannot reach the electronic component D as shown in FIG. 3 does not occur. Of course, in this case, in order to prevent interference between the imaging center line CL of the confirmation camera 120 and the substrate BP at the photographing location for photographing the electronic component D nearest to the substrate BP, it is necessary to set the confirmation camera 120 for the inclination of the shooting center line CL.

In addition, the customer tray CT generally has a rectangular shape that is long in the front-rear direction and short in the left-right direction. In this embodiment, an embodiment is adopted in which the camera 120 for confirmation is photographed while moving from the rear to the front. Therefore, as shown in FIG. 8, the linear laser L irradiated by the laser irradiator 110 has longer patterns. In addition, the angle of view and focal length of the camera 120 for confirmation are also set based on the laser pattern shown in FIG. 8 .

However, as shown with reference to FIG. 9 , the linear laser L irradiated by the laser irradiator 110 may also have a long pattern in the front-rear direction according to an embodiment. In this case, the angle of view and focal length of the confirmation camera 120 should also be set accordingly. Furthermore, since the movement of the confirmation camera 120 for photographing needs to be performed in the left and right directions, it is necessary to program the movement of the left and right shifter 160 in order to perform the movement for photographing.

However, increasing the rising height of the confirmation camera 120 in order to ensure a wider viewing angle will lead to enlargement of the processing equipment PE to be produced, and for the produced processing equipment PE, the rising height of the confirmation camera 120 will be limited, so It may be difficult to secure a sufficient viewing angle. Therefore, like this embodiment, it is more preferable that the confirmation camera 120 moves in the longer direction of the customer tray CT and photographs the electronic components D arranged in the shorter direction of the customer tray CT all at once.

For reference, in this embodiment, the laser irradiator 110 irradiates the laser L toward the rear. However, according to the embodiment, the inspection part PP may be arranged at the rear end of the pickup module PM. In this case, it needs to be arranged so that the laser irradiator 110 irradiates the laser L forward. Accordingly, in order to save the installation space IS , Preferably, the arrangement of the camera 120 for setting confirmation and the reflector 130 is changed.

In addition, in the present embodiment, the confirmation camera 120 is realized to move forward and take pictures, but according to the embodiment, the confirmation camera 120 may be realized to move backward and take pictures. second embodiment

This embodiment can be preferably applied when the setting space IS is ensured on the left or right side of the moving area MS as shown in FIG. 2 .

As shown with reference to FIG. 10 , the photographing apparatus 200 according to the second embodiment of the present invention includes an inspection part PP, a forward and backward mover 250 , a left and right mover 260 , a vertical mover 270 and a controller 280 .

The inspection part PP is combined with the pickup module PM so as to be able to move together with the pickup module PM, and as shown in the extracted exploded view of FIG. The board 230 and the setting parts 241 to 243.

The laser irradiator 210 is equipped to irradiate the linear laser L on the upper surface of the electronic component mounted on the loading element, and is arranged on the left side of the pickup module PM. As shown in FIG. 12 , such a laser irradiator 210 is installed obliquely at a predetermined inclination angle Φ with respect to the vertical line PL so as to irradiate laser light L to the upper surface of the electronic component D positioned below its front side.

The confirmation camera 220 is equipped to confirm the placement state of the electronic components mounted on the loading element by imaging the laser irradiated by the laser irradiator 210 . The confirmation camera 220 of this embodiment is installed so that the imaging center line CL is parallel to the horizontal line HL in the front-back direction, and the imaging direction is directed forward. Such a confirmation camera 220 is arranged in front of the laser irradiator 210 . For reference, in this description, the imaging direction of the confirmation camera 220 is defined as facing forward.

The reflection plate 230 bends the imaging center line CL of the confirmation camera 220 toward the upper surface of the electronic component D, so that the confirmation camera 220 can photograph the laser L irradiated onto the upper surface of the electronic component D by the laser irradiator 210, as Here, the reflection plate 230 is arranged in front of the confirmation camera 220 . At this time, the reflecting plate 230 is set to form an angle of 45 degrees with respect to the horizontal line HL, so that the shooting center line CL is bent at an angle of 90 degrees so that the shooting center line CL faces directly downward.

In this way, in this embodiment, the laser irradiator 210 , the confirmation camera 220 , and the reflector 230 are arranged in a row along the front-rear direction, thereby saving the space of the left-right width.

The installation members 241 to 243 are provided for installation of the laser irradiator 210 , the camera 220 for confirmation, and the reflection plate 230 . Therefore, the laser irradiator 210 , the camera for confirmation 220 , and the reflection plate 230 are sequentially arranged in one direction, and the installation members 241 to 243 are attached to each other with a predetermined interval therebetween. Likewise, in the present embodiment, the setting parts 241 to 243 are combined with the pickup module PM so as to move together with the pickup module PM. Therefore, the laser irradiator 210, the camera 220 for confirmation, and the reflector 230 are combined with the pickup module PM. The picker module PM moves together with the picker module PM. In addition, the installation members 241 to 243 also function as shielding members for blocking external noise light from entering the confirmation camera 220 and the reflection plate 230, and also serve as shielding members for protecting the laser irradiator 210 and the confirmation camera. 220 and the protective components of the reflection plate 230.

The front-back mover 250 moves the pickup module PM in the front-back direction, and finally moves the laser irradiator 210 , the confirmation camera 220 , and the reflector 230 in the front-back direction.

The left-right mover 260 moves the pickup module PM in the left-right direction, and finally moves the laser irradiator 210 , the confirmation camera 220 , and the reflector 230 in the left-right direction.

The vertical mover 270 moves the pickup module PM vertically, and finally moves the laser irradiator 210 , the confirmation camera 220 , and the reflector 230 vertically.

The controller 280 controls the operation of the automatic operation configuration including the laser irradiator 210 , the camera 220 for confirmation, and the movers 250 , 260 , and 270 during the imaging operation.

In this embodiment, since the checking camera 220 also moves in one direction to take pictures, the inspection portion PP including the reflection plate 230 needs to be moved at an accelerated speed, at a constant speed, and at a decelerated speed.

The rest of the way of photographing or the way of moving the inspection portion PP including the reflection plate 230 and the like are the same as those of the first embodiment, so description thereof will be omitted.

In addition, as shown in FIG. 13, the inspection part PP according to this embodiment may also be provided on the left and right of the pickup module PM, respectively.

Generally, as shown with reference to the processing equipment PE of FIG. 14 , a picker module PM for sorting electronic parts processed in the processing equipment needs to operate with a plurality of customer trays CT arranged in the left-right direction as objects. Therefore, adopt the embodiment shown in Figure 13, for the customer tray CT located on the left side, use the inspection part PP located on the left side of the picker module PM to check whether the placement is bad, and for the customer tray CT located on the right side, use the inspection part PP located on the left side of the picker module PM The inspection part PP on the right side of the pickup module PM checks whether the placement is bad. This is because, in the case where the inspection portion PP is provided only on one of the left and right sides of the picker module PM, there may be a possibility that the customer pallet located in the other side direction cannot be inspected due to the left-right width of the picker module PM. Structure. Of course, as long as the angle of view for laser irradiation and imaging can be ensured, the inspection part PP can be installed on only one of the left and right sides as shown in FIG. Use on the left and right sides.

According to the present invention as described above, since the imaging center line CL of the confirmation cameras 120, 220 and the irradiation direction of the laser irradiators 110, 210 can be realized, the laser pattern caused by the poor placement of the electronic component D can be fully confirmed. Varying angles and thus excellent inspection reliability through pattern analysis.

For example, when one of the electronic components is slightly tilted, if the angle between the imaging center line of the confirmation camera and the irradiation direction of the laser irradiator is small, it may not be possible to confirm the change of the laser pattern.

However, according to the layout structure of the present invention, the inspection part PP is installed in the narrow installation space IS, and the angle between the imaging center line CL of the confirmation cameras 120, 220 and the irradiation direction of the laser irradiators 110, 210 can be sufficiently ensured. , so that the change of the laser pattern can be confirmed on the captured image.

For reference, the present invention has been mainly explained by confirming whether or not the mounting state of the electronic component is defective by the cameras 120 and 220 for confirmation. However, it is also possible to check whether the electronic component D is defective (damage, dent, adhesion of foreign matter, etc.) through the confirmation cameras 120 and 220. Therefore, in this case, the above-mentioned first and second embodiments can also be directly applied. The configuration of the inspection part PP of the example. That is, depending on the embodiment, the confirmation cameras 120 and 220 may be equipped for confirming the installation state of the electronic component D, may be equipped for confirming the defective state of the electronic component D, or may be used for simultaneously confirming the installation state and the defective state of the electronic component D equipped for the status. Therefore, in the present invention, the meaning of checking the installation state of the electronic component D can be defined not only as simply checking whether the installation state is defective, but also as including checking whether the electronic component D itself has a defect.

As mentioned above, the present invention has been specifically described by referring to the embodiments of the drawings, but the above-mentioned embodiments have only described the preferred embodiments of the present invention, so it should not be understood that the present invention is only limited to the above-mentioned embodiments. The scope of rights should be understood as the scope of the patent application and its equivalent scope.

100,200: electronic component shooting device 110,210: Laser irradiators 120,220: camera for confirmation 130,230: reflector 141~145, 241~243: setting parts 150,250: front and rear shifters 160,260: left and right shifter 180,280: Controller PM: Pickup Module P: Pickup BP: Substrate

1 to 3 are reference diagrams for explaining the background art.

4 is a schematic perspective view of a photographing device for an electronic component processing apparatus according to a first embodiment of the present invention.

FIG. 5 is an extracted exploded view of an inspection portion extracted and disassembled from the photographing device for electronic component processing equipment of FIG. 4 .

FIG. 6 is a schematic reference diagram for explaining the constitutional arrangement of the inspection portion of FIG. 5 .

FIG. 7 is a reference diagram for explaining the operation of the photographing device used in the electronic component processing facility of FIG. 4 .

8 and 9 are reference diagrams for explaining laser patterns and inspection methods.

Fig. 10 is a schematic perspective view of a photographing device for an electronic component processing apparatus according to a second embodiment of the present invention.

FIG. 11 is an extracted exploded view of an inspection portion extracted and disassembled from the photographing device for electronic component processing equipment of FIG. 10 .

FIG. 12 is a schematic reference diagram for explaining the constitutional arrangement of the inspection portion of FIG. 10 .

13 and 14 are reference diagrams for explaining that the inspection portions of FIG. 11 can be provided in pairs.

Domestic deposit information (please note in order of depositor, date, and number) none Overseas storage information (please note in order of storage country, institution, date, and number) none

110:Laser irradiator

120: camera for confirmation

130: reflector

CL: Centerline

D: electronic components

P: Pickup

PL: vertical line

PM: Pickup Module

Claims (8)

A photographing device for electronic component processing equipment, comprising: a laser irradiator equipped to irradiate a linear laser on an upper surface of an electronic component mounted on a loading element and irradiate the laser in a horizontal direction; a camera for confirmation equipped to The installation state of the electronic components mounted on the loading element is confirmed by photographing the laser irradiated by the laser irradiator; the reflection plate directs the laser irradiated in the horizontal direction from the laser irradiator to the electronic components located vertically below Reflection, enabling the confirmation camera to photograph electronic components irradiated with laser; a mover, moving the laser irradiator, the confirmation camera, and the reflector in the horizontal direction, so that the confirmation camera Electronic components can be photographed at two or more positions; and a controller that controls the laser irradiator, the confirmation camera, and the mover, wherein the laser irradiator, the confirmation camera, and the The reflection plate is combined with each other in such a manner that it can be moved together by the mover, wherein the laser irradiator, the camera for confirmation, and the reflection plate are provided with an electronic device capable of gripping an electronic part in order to move the electronic part. components or the pick-up module of the pick-up that releases the gripping of electronic components, the laser irradiator is arranged in front of the pick-up in a manner of irradiating the laser to the rear, and the reflector is arranged on the laser between the irradiator and the pick-up. Patches for processing equipment for electronic components according to claim 1 A photographing device, wherein the confirmation camera is arranged in front of the pickup module and in the direction of the upper side of the laser irradiator, and the photographing centerline of the confirmation camera has an angle greater than 0 degrees and less than 90 degrees relative to the vertical line. degrees of inclination. The imaging device for electronic component processing equipment according to claim 2, wherein the loading surface of the loading element is located below the upper surface of the substrate for fixing the edge of the loading element, and the inclination of the imaging center line is determined by It is set so as to prevent interference between the imaging center line of the checking camera and the substrate at at least one imaging location when imaging by the checking camera is performed. An imaging device for electronic component processing equipment, comprising: a laser irradiator equipped to irradiate a linear laser on the upper surface of an electronic component mounted on a loading element; a camera for confirmation that is irradiated by the laser by imaging The laser irradiated by the laser is used to confirm the installation state of the electronic components loaded on the loading element, and its shooting center line is parallel to the horizontal line; the reflector bends the shooting center line toward the upper surface of the electronic component irradiated with the laser, so that The confirmation camera can photograph the upper surface of the electronic component irradiated with laser; the mover moves the laser irradiator, the confirmation camera, and the reflector in the horizontal direction so that the confirmation camera can be in two photographing electronic components at more than one position; and a controller that controls the laser irradiator, the confirmation camera, and the mover, wherein the laser irradiator, the confirmation camera, and the reflector are Combined with each other by being able to move together by the mover, wherein the laser irradiator, the camera for confirmation, and the reflection plate are provided to be able to grip or release the electronic component in order to move the electronic component. The pick-up module of the pick-up for grasping the electronic component is combined, the confirmation camera is arranged in the left or right direction of the pick-up in a manner of photographing the front, and the reflection plate is arranged in front of the confirmation camera . The photographing device for electronic component processing equipment according to claim 4, wherein the laser irradiator is arranged behind the confirmation camera. The photographing device for electronic component processing equipment according to Claim 4, wherein said laser irradiator, said camera for confirmation, and said reflection plate are arranged side by side in one direction. The photographing device for an electronic component processing facility according to claim 1 or claim 4, wherein the controller controls the confirmation camera to move in one direction and photograph electronic components arranged on the loading element. The laser irradiator, the confirmation camera, and the mover are used for one of the reflectors to be photographed by the confirmation camera The upward movement distance is longer than the arrangement distance in one direction of the electronic components arranged on the loading elements, and the arrangement distance is within the movement distance, and the arrangement distance is defined as the first one photographed by the confirmation camera. The distance between the position of the reflector at the time point of the electronic part and the position of the reflector at the time point of photographing the last electronic part. The photographing device for electronic component processing equipment according to claim 7, wherein the moving distance is divided into an accelerated movement section in which the reflective plate moves at an accelerated speed, a constant-speed movement section in which the reflective plate moves at a constant speed, and the reflective plate In a decelerated movement section in which the deceleration movement is performed, and the arrangement distance is within the constant-speed movement section, the controller controls to pass the confirmation camera when the reflector moves at a constant speed in the constant-speed movement section. shot of electronic components.

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