TWI846298B - Photographing apparatus for processing equipment of electronic components - Google Patents

Abstract

The present invention relates to a photographing device for electronic component processing equipment. According to the photographing device of the present invention, the irradiation direction of the laser irradiator is horizontal or the shooting center line of the confirmation camera is parallel to the horizontal line. According to the present invention, the focal length and viewing angle of the confirmation camera and the appropriate angle between the irradiation direction and the shooting direction of the laser can be set while being installed in a narrow installation space, thereby improving the reliability of the inspection of whether the placement of the electronic components loaded on the loading element is bad.

Description

Photographic device for electronic component processing equipment

The present invention relates to a technology for grasping the placement status of each electronic component loaded on a loading element in an electronic component processing equipment that manages and processes the electronic components individually.

The manufactured electronic components are shipped out after undergoing various processes such as testing processes and sorting processes. In this process, electronic component processing equipment for processing electronic components is used.

Electronic component processing equipment can be manufactured in various forms according to its working functions. In order to supply or recover electronic components to such electronic component processing equipment, or to move electronic components, a loading element that can load electronic components is used. The loading element can be manufactured in various forms according to the type of electronic component, the type of operation used, etc.

When using a loading element, an electronic component can be moved from a loading element to another loading element, or a desired processing operation can be performed on the electronic component while being loaded on the loading element. Therefore, in order to properly move the electronic component or perform a proper processing operation on the electronic component, the electronic component is required to be correctly placed on the loading element. Otherwise, if the electronic component is loaded on the loading element in a defective mounting state, a defect will occur in the moving operation or the processing operation. Therefore, in order to confirm the loading error of the electronic component, the applicant proposed Korean Publication No. 10-2016-0018211 and No. 10-2017-0093624 (hereinafter referred to as "Cited Technology 1").

In cited technology 1, after irradiating the laser and photographing with a camera, the photographed laser pattern is analyzed, thereby confirming the loading error of the electronic component. For this cited technology, the irradiation direction of the laser and the photographing 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 photographing direction, it is difficult to observe the change of the laser pattern. In addition, the laser must be irradiated to the part to be observed, and the accuracy of the image can only be ensured if the camera observes the part irradiated with the laser in the center of the camera lens. Accordingly, it is necessary to set the laser irradiator and the camera so that there is a predetermined angle between the irradiation direction of the laser and the photographing direction through the camera, and thus the laser irradiator and the camera will be separated by a considerable distance.

However, as in cited technique 1, if the laser irradiator and the camera are separated by a considerable distance, the space for arranging the corresponding configuration needs to be larger, and therefore, the design for eliminating interference with other devices, etc. is more complicated. Therefore, depending on the equipment, it may be difficult to ensure the space for configuring the laser irradiator and the camera. In addition, this problem is that it becomes difficult to additionally set the laser irradiator and the camera in the equipment used on site after each configuration is produced in an optimized design state. An example of this problem will be described with reference to FIG. 1 and FIG. 2.

The pickup module PM equipped in the processing device PE is used to move the electronic components from one side loading element to another side loading element. When the moving area MS of the pickup module PM is considered, the setting space IS for setting the shooting device is allowed only within the range except for the oblique area SF having other structures and the moving area MS. That is, in the processing device PE of FIG. 1, the setting space IS can be ensured at the front end of the moving area MS, and in the processing device PE of FIG. 2, the setting space IS can be ensured on the left or right side of the moving area MS. Of course, even if there is a setting space IS, its front and back, left and right, and top and bottom widths are very narrow. Therefore, in particular, the overall front and back width of the shooting device to be applied to the processing device PE of Figure 1 and the overall left and right width of the shooting device to be applied to the processing device of Figure 2 should be minimized. At the same time, it is also necessary to fully ensure the focal length, viewing angle of the camera, and the angle between the laser irradiation direction and the shooting direction of the camera.

Based on the reasons as mentioned above, as in Korean Patent Publication No. 10-2020-0011352 (hereinafter referred to as "Cited Technology 2"), the applicant proposed a structure in which a confirmation camera and a laser irradiator are arranged adjacent to each other and combined with a pickup module.

The cited technology 2 provides the freedom to add a shooting device without increasing the size of the processing equipment to be produced or changing the structure of the existing processing equipment that has already been produced. Furthermore, since the shooting device is designed to be movable by combining it with the pickup module, it is possible to confirm the loading failure of all the loading elements that one pickup module is responsible for, thereby minimizing the construction cost.

However, since the processing equipment PE is mainly customized by customers, the location of the setting space IS may be different for different equipment. Therefore, it is still difficult to properly apply the shooting device according to the reference technology 2 to all processing equipment, especially all processing equipment that has been produced and used.

Furthermore, in cited technology 2, the irradiation angle of the laser irradiator or the shooting angle of the confirmation camera is bent by equipping a reflector, thereby making the installation property in a narrow space good. However, in order to achieve appropriate reflection of the reflector, ensure appropriate focal length and viewing angle of the confirmation camera, and obtain appropriate images for accurately identifying changes in the laser pattern, the appropriate angle between the laser irradiation direction and the shooting direction of the confirmation camera is set, etc., the bend of the reflector is preferably 90 degrees. For this purpose, the reflector needs to be set to have an angle of 45 degrees relative to the irradiation direction of the laser or the shooting center line of the confirmation camera. However, it can be confirmed that it is difficult to achieve such a setting by citing technology 2.

Furthermore, in order to improve the recognition rate, the confirmation camera, laser irradiator and reflector need to be spaced apart to a degree that can ensure the focal length of the confirmation camera, etc. However, due to the limitation of the lifting height of the shooting device or the narrowness of the installation space IS, when following the structure of cited technology 2, it is often impossible to ensure this separation space.

In addition, referring to Korean Patent Publication No. 10-2015-0041682, as shown in FIG3, it can be seen that the loading surface Lf of the customer tray CT as a loading element is located at a lower position than the upper surface of the base plate 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 component D at the last part loaded on the customer tray CT due to the obstruction of the base plate BP, so a structure of a photographing device that can also solve the above problem is required.

The present invention has the following motivations. First, it is necessary to realize a structure that can minimize the installation space for installing the inspection part. Second, it is necessary to realize a structure that can bend the irradiation direction of the laser through the laser irradiator or the shooting angle of the confirmation camera by 90 degrees while the shooting device is installed on the pickup module. Third, even if the installation space is small, the focal length and viewing angle of the confirmation camera can be ensured. Fourth, even if the installation space is narrow, the shooting direction and the irradiation direction of the laser can be set to an angle that can fully identify the pattern change of the laser. Fifth, even if the loading surface of the loading element is lower than the upper surface of the substrate, it is necessary to have a structure that allows the laser irradiated by the laser irradiator to reach the electronic component without being blocked by the chassis.

According to a first aspect of the present invention, a photographing device for an electronic component processing apparatus comprises: a laser irradiator configured to irradiate a linear laser onto the upper surface of an electronic component mounted on a mounting element and to irradiate the laser in a horizontal direction; a confirmation camera configured to confirm the placement state of the electronic component mounted on the mounting element by photographing the laser irradiated by the laser irradiator; and a reflector configured to reflect the laser irradiated in the horizontal direction by the laser irradiator toward the electronic component located vertically below. The invention relates to a laser irradiator, which enables the confirmation camera to photograph the electronic components irradiated with laser; a mover, which enables the laser irradiator, the confirmation camera and the reflector to move in a horizontal direction so that the confirmation camera can photograph the electronic components at more than two positions; and a controller, which 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 in a manner that they can move together by the mover.

The laser irradiator, the confirmation camera and the reflector are configured to be combined with a pickup module including a pickup that can grasp or release the electronic components in order to move the electronic components. The laser irradiator is arranged in front of the pickup in a manner of irradiating laser backwards, and the reflector is arranged between the laser irradiator and the pickup.

The confirmation camera is arranged in front of the pickup module and above the laser irradiator, and the shooting center line of the confirmation camera has a tilt angle greater than 0 degrees and less than 90 degrees relative to the vertical line.

The mounting surface of the mounting element is located below the upper surface of the substrate for fixing the edge of the mounting element, and the inclination of the shooting center line is set to prevent interference between the shooting center line of the confirmation camera and the chassis at at least one shooting location when shooting with the confirmation camera.

The controller controls the laser irradiator, the confirmation camera and the mover in such a manner that the confirmation camera moves in one direction and can photograph the electronic components arranged on the loading element, and is used to control the laser irradiator, the confirmation camera and the mover, so that the moving distance of the reflector in one direction photographed by the confirmation camera is longer than the arrangement distance in one direction of the electronic components arranged on the loading element, and the arrangement distance is within the moving distance, and the arrangement distance is defined as the distance between the position of the reflector at the time point when the confirmation camera photographs the first electronic component and the position of the reflector at the time point when the confirmation camera photographs the last electronic component.

The moving distance is divided into an accelerated moving section in which the reflector performs accelerated moving, a uniform moving section in which the reflector performs uniform moving, and a decelerated moving section in which the reflector performs decelerated moving, and the arrangement distance is within the uniform moving section, and the controller controls so that the electronic components of the confirmation camera are photographed when the reflector moves at a uniform speed in the uniform moving section.

According to the second aspect of the present invention, a photographing device for electronic component processing equipment comprises: a laser irradiator, which is equipped to irradiate a linear laser to the upper surface of the electronic component loaded on the loading element; a confirmation camera, which confirms the placement state of the electronic component loaded on the loading element by photographing the laser irradiated by the laser irradiator, and its photographing center line is parallel to the horizontal line; a reflector, which bends the photographing center line toward the upper surface of the electronic component irradiated with the laser so that the reflected light is reflected by the reflection plate. The confirmation camera can photograph the upper surface of the electronic component irradiated with the laser; a mover moves the laser irradiator, the confirmation camera and the reflector in a horizontal direction so that the confirmation camera can photograph the electronic component at more than two positions; and a controller 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 in a manner that they can move together by the mover.

The laser irradiator, the confirmation camera and the reflector are configured to be combined with a pickup module including a pickup that can grasp or release the electronic components in order to move the electronic components. The confirmation camera is arranged on the left or right side of the pickup in a manner of shooting the front, and the reflector is arranged in front of the confirmation camera.

The laser irradiator is arranged behind the confirmation camera.

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

The controller controls the laser irradiator, the confirmation camera and the mover in such a manner that the confirmation camera moves in one direction and can photograph the electronic components arranged on the loading element, and is used to control the laser irradiator, the confirmation camera and the mover, so that the moving distance of the reflector in one direction photographed by the confirmation camera is longer than the arrangement distance in one direction of the electronic components arranged on the loading element, and the arrangement distance is within the moving distance, and the arrangement distance is defined as the distance between the position of the reflector at the time point when the confirmation camera photographs the first electronic component and the position of the reflector at the time point when the confirmation camera photographs the last electronic component.

The moving distance is divided into an accelerated movement section in which the reflector performs accelerated movement, a uniform movement section in which the reflector performs uniform movement, and a decelerated movement section in which the reflector performs decelerated movement, and the arrangement distance is within the uniform movement section, and the controller controls so that the electronic components of the confirmation camera are used to take pictures when the reflector moves at a uniform speed in the uniform movement section.

According to the present invention, even when the inspection part is set to occupy only a relatively small area, the following effects are achieved. First, the installation space required for setting the inspection part can be minimized, thereby minimizing the expansion of the processing equipment, or the inspection part can be appropriately set in the existing processing equipment that has been produced. Second, a layout structure can be provided that can bend the laser irradiation direction of the laser irradiator or the shooting angle of the confirmation camera by 90 degrees. Third, since the shooting center line of the confirmation camera and the irradiation direction of the laser irradiator can be arranged at an angle that can clearly confirm the difference in pattern changes, the reliability of the inspection is improved. Fourth, since the focal length and viewing angle of the confirmation camera can be fully ensured, a clear image can be obtained, thereby further improving the reliability of the inspection. Fifth, according to an embodiment of the present invention, even if the mounting surface of the mounting element is lower than the upper surface of the substrate, it is possible to confirm whether the placement of all electronic components is defective.

The preferred embodiments of the present invention are described with reference to the drawings. For the sake of brevity, the description of well-known, repeated or substantially identical structures is omitted or compressed as much as possible.

The photographing device for electronic component processing equipment according to the present invention (hereinafter referred to as "photographing device") can have an example in which the photographing device is located in front of the moving area as shown in FIG. 1 and an example in which the photographing device is located on the left or right side of the moving area as shown in FIG. 2, and thus will be described separately according to different embodiments. First Embodiment

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

As shown in FIG. 4 , the photographing device 100 according to the first embodiment of the present invention includes a checking part PP, a front-back mover 150, a left-right mover 160, a vertical mover 170, and a controller 180.

The inspection part PP is combined with the pickup module PM so as to be movable together with the pickup module PM. As shown in the extracted exploded view of FIG. 5 , the inspection part PP includes a laser irradiator 110 , a confirmation camera 120 , a reflection plate 130 , and installation components 141 to 145 .

The laser irradiator 110 is configured to irradiate a linear laser onto the upper surface of the electronic component loaded on the loading element. This laser irradiator 110 is arranged to irradiate the laser toward the rear as a horizontal direction. To this end, as shown in the schematic diagram of reference 6, the laser irradiator 110 is arranged in front of the pickup P located in the pickup module PM. Here, the pickup P is a tool that grasps the electronic component D or releases the grasp of the electronic component D by vacuum adsorption force.

The confirmation camera 120 is provided to confirm the placement state of the electronic components loaded on the loading element by photographing the laser irradiated by the laser irradiator 110. As shown in FIG6 , the confirmation camera 120 of this embodiment is arranged in front of the pickup module PM and in the upper direction of the laser irradiator 110. And, the confirmation camera 120 is tilted so that its shooting center line CL has a tilt angle θ greater than 0 degrees and less than 90 degrees with respect to the vertical line PL.

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

The installation parts 141 to 145 are provided for installing the laser irradiator 110, the confirmation camera 120, and the reflector 130. Therefore, the laser irradiator 110, the confirmation camera 120, and the reflector 130 are separated from each other by a predetermined interval, and attached to each other by being mounted on the installation parts 141 to 145. Furthermore, the installation parts 141 to 145 are combined with the pickup module PM, thereby moving together with the pickup module PM, and therefore, the laser irradiator 110, the confirmation camera 120, and the reflector 130 fixedly installed on the installation parts 141 to 145 are finally combined with the pickup module PM and move together with the pickup module PM. Furthermore, the setting components 141 to 145 also function as shielding components for blocking external noise light from entering the confirmation camera 120 and the reflector 130, thereby preventing distorted shooting caused by external noise light. Furthermore, the setting components 141 to 145 surround the laser irradiator 110, the confirmation camera 120, and the reflector 130, thereby also functioning as protective components for protecting the laser irradiator 110, the confirmation camera 120, and the reflector 130 from other components or other undesired contacts. In addition, the setting components 141 to 145 also function to protect the user.

The forward and backward mover 150 moves the pickup module PM in the forward and backward direction, thereby ultimately moving the laser irradiator 110, the confirmation camera 120 and the reflector 130 in the forward and backward direction.

The left-right mover 160 moves the pickup module PM in the left-right direction, thereby ultimately moving 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 in the vertical direction, thereby ultimately moving the laser irradiator 110, the confirmation camera 120, and the reflector 130 in the vertical direction. Therefore, through the proper operation of the vertical mover 170, the confirmation camera 120 can be located at a proper height to photograph the electronic component D.

The aforementioned forward and backward mover 150, left and right mover 160, and vertical mover 170 are also used to move the electronic components D using the pickup module PM. Furthermore, according to the present embodiment, the forward and backward mover 150 moves the laser irradiator 110, the confirmation camera 120, and the reflector 130 forward during the photographing operation, thereby functioning as a tool for moving the confirmation camera 120 above the electronic components D arranged in the forward and backward direction and photographing all the electronic components D. That is, since a plurality of electronic components are arranged in a matrix on the loading element, the confirmation camera 120 can photograph the electronic components D while the forward and backward mover 150 is moved. Of course, if the inspection part PP is not a structure that moves with the pickup module PM but is fixed at a certain position and moves the loading elements to photograph the electronic component D, the above-mentioned front and rear mover 150, left and right mover 160 and vertical mover 170 are omitted from the structure of the shooting device 100.

During the shooting operation, the controller 180 controls the operation of the automatic operation structure including the laser irradiator 110, the confirmation camera 120, and the movers 150, 160, and 170. The controller 180 has an analysis unit that analyzes the laser pattern from the image from the confirmation camera 120 and determines whether the mounting of the electronic component D is defective.

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

When the customer tray CT as one of the loading elements is supplied to the shooting position, as shown in FIG7 (a), the controller 180 controls the forward and backward moving device 150 to move the confirmation camera 120 backward to the maximum extent. Then, as shown in FIG7 (b), the pickup module PM moves forward and starts shooting from the time point when the reflector 130 is located above the rearmost electronic component _D1 loaded on the customer tray CT, and then, as shown in FIG7 (c), the shooting is performed until the time point when the reflector 130 is located above the frontmost electronic component _D2 loaded on the customer tray CT. Then, as shown in FIG. 7( d ), after the reflector 130 moves further forward by a predetermined distance from the time point when the last photograph was taken, the movement of the inspection portion PP is completed. Here, when the distance between the position of the reflector 130 at the time when the first electronic component _D1 (the electronic component located at the rear of the customer's pallet) is photographed by the confirmation camera 120 and the position of the reflector 130 at the time when the last electronic component _D2 (the electronic component located at the front of the customer's pallet) is photographed is defined as the arrangement distance S at which the electronic components are arranged, for the accuracy of shooting, it is preferred that the moving distance M of the reflector 130 moving forward when the shooting operation is performed by the confirmation camera 120 is longer than the arrangement distance S, and the arrangement distance S is within the moving distance M. This is because, in order to increase the processing capacity, the inspection portion PP including the reflector 130 needs to be continuously moved without stopping. In this case, in order to calculate an accurate shooting time point and realize appropriate shooting, the reflector 130 needs to be moved at a uniform speed within the range of the arrangement distance S. Therefore, the movement of the reflector 130 needs to be controlled in the order of accelerated movement, uniform speed movement, and decelerated movement from the time when it starts to move in a stopped state until it is in a stopped state again. In other words, the moving distance M can be divided into an accelerated moving section A in which the reflector 130 moves at an accelerated speed, a uniform moving section E in which the reflector 130 moves at a uniform speed, and a decelerated moving section R in which the reflector 130 moves at a decelerated speed, and the arrangement distance S is at least consistent with or within the uniform moving section E. Therefore, the controller 180 controls so that when the reflector 130 moves at a uniform speed in the uniform moving section E, the electronic component D is photographed by the confirmation camera 120.

Furthermore, according to the photographing device 100 of the present embodiment, since the laser is bent 90 degrees by the reflective plate 130 and incident on the electronic component D, even if the loading surface Lf of the customer tray CT is located below the upper surface of the substrate BP for fixing the edge of the customer tray CT, the laser irradiated by the laser irradiator 110 will not be blocked by the substrate BP and fail to reach the electronic component D as shown in FIG3 . Of course, in this case, in order to prevent interference between the photographing center line CL of the confirmation camera 120 and the substrate BP at the photographing point for photographing the electronic component D closest to the substrate BP, it is necessary to set the inclination of the photographing center line CL of the confirmation camera 120.

In addition, the customer tray CT generally has a rectangular shape that is long in the front-back direction and short in the left-right direction. In this embodiment, an implementation method is adopted in which the confirmation camera 120 is moved from the back to the front while shooting, so as shown in FIG8, the linear laser L irradiated by the laser irradiator 110 has a pattern that is long in the left-right direction. In addition, the viewing angle or focal length of the confirmation camera 120 is also set according to the laser pattern shown in FIG8.

However, as shown in FIG. 9 , the linear laser L irradiated by the laser irradiator 110 may also have a pattern that is longer in the front-back direction according to the embodiment. In this case, the viewing angle or focal length of the confirmation camera 120 should also be set accordingly. Furthermore, since the movement of the confirmation camera 120 for shooting needs to be performed in the left-right direction, it is necessary to program the left-right mover 160 to operate in order to perform the movement for shooting.

However, increasing the height of the confirmation camera 120 to ensure a wider viewing angle will lead to the expansion of the processing equipment PE to be produced, and for the processing equipment PE that has been produced, the height of the confirmation camera 120 is limited, so it may be difficult to ensure a sufficient viewing angle. Therefore, as in the present embodiment, it is more preferable that the confirmation camera 120 moves in the direction of the longer length of the customer tray CT and photographs the electronic components D arranged in the direction of the shorter length of the customer tray CT at one time.

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 is necessary to arrange the laser irradiator 110 to irradiate the laser L toward the front. Therefore, in order to save the installation space IS, it is preferable to change the arrangement of the camera 120 for setting confirmation and the reflector 130.

Furthermore, in this embodiment, the confirmation camera 120 is implemented by moving forward and taking pictures, but according to the implementation method, the confirmation camera 120 can also be implemented by moving backward and taking pictures. Second embodiment

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

As shown in FIG. 10 , the photographing device 200 according to the second embodiment of the present invention includes a checking part PP, a front-back mover 250, a left-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 movable together with the pickup module PM, and as shown in the extracted exploded view of FIG. 11 , the inspection part PP includes a laser irradiator 210, a confirmation camera 220, a reflection plate 230 and setting parts 241 to 243.

The laser irradiator 210 is equipped to irradiate the upper surface of the electronic component loaded on the loading element with a linear laser L, and is arranged on the left side of the pickup module PM. As shown in FIG. 12, the laser irradiator 210 is tilted at a predetermined tilt angle Φ with respect to the vertical line PL so as to irradiate the upper surface of the electronic component D located below the front side thereof with the laser L.

The confirmation camera 220 is configured to confirm the placement state of the electronic components mounted on the mounting element by photographing the laser irradiated by the laser irradiator 210. The confirmation camera 220 of this embodiment is set so that the photographing center line CL is parallel to the horizontal line HL in the front-back direction and the photographing direction faces forward. This confirmation camera 220 is arranged in front of the laser irradiator 210. For reference, in this description, the photographing direction of the confirmation camera 220 is defined as facing forward.

The reflector 230 bends the shooting center line CL of the confirmation camera 220 toward the upper surface of the electronic component D so that the confirmation camera 220 can shoot the laser light L irradiated from the laser irradiator 210 to the upper surface of the electronic component D. To this end, the reflector 230 is arranged in front of the confirmation camera 220. At this time, the reflector 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 and the shooting center line CL is directed directly downward.

Thus, in this embodiment, the laser irradiator 210, the confirmation camera 220, and the reflective plate 230 are arranged in a row along the front-to-back direction, thereby saving the space of the left-right width.

The installation components 241 to 243 are provided for installing the laser irradiator 210, the confirmation camera 220 and the reflector 230. Therefore, the laser irradiator 210, the confirmation camera 220 and the reflector 230 are arranged in sequence along one direction, and the installation components 241 to 243 are mounted in a manner of being spaced apart from each other by a predetermined interval and attached to each other. Similarly, in this embodiment, the installation components 241 to 243 are combined with the pickup module PM, thereby moving together with the pickup module PM, and therefore, the laser irradiator 210, the confirmation camera 220 and the reflector 230 are combined with the pickup module PM and move together with the pickup module PM. Furthermore, the setting components 241 to 243 also function as shielding components for blocking external noise light from being incident on the confirmation camera 220 and the reflector 230 , and also function as protective components for protecting the laser irradiator 210 , the confirmation camera 220 , and the reflector 230 .

The forward and backward mover 250 moves the pickup module PM in the forward and backward direction, thereby ultimately moving the laser irradiator 210, the confirmation camera 220 and the reflector 230 in the forward and backward direction.

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

When performing a photographing operation, the controller 280 controls the operation of the automatic operation structure including the laser irradiator 210, the confirmation camera 220, and the movers 250, 260, and 270.

In this embodiment, since the confirmation camera 220 also moves in one direction to take pictures, it is necessary to include accelerated movement, uniform speed movement, and decelerated movement of the inspection part PP of the reflection plate 230.

The rest of the shooting method or the moving method of the inspection part PP including the reflection plate 230 is the same as that of the first embodiment, so the description thereof will be omitted.

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

Generally, as shown in the processing equipment PE of reference FIG14, the pickup module PM for classifying the electronic components processed in the processing equipment needs to operate with a plurality of customer trays CT arranged in the left-right direction as objects. Therefore, the implementation method shown in FIG13 is adopted, and for the customer tray CT located at the left side, the inspection part PP located at the left side of the pickup module PM is used to inspect whether the placement is bad, and for the customer tray CT located at the right side, the inspection part PP located at the right side of the pickup module PM is used to inspect whether the placement is bad. This is because, in the case where the inspection part PP is provided only on one side of the pickup module PM, there may be a structure in which the customer tray located on the other side cannot be inspected due to the left-right width of the pickup module PM. Of course, as long as the viewing angle for laser irradiation and shooting can be ensured, the inspection part PP can be set only on one side of the left or right as shown in Figure 10, or it can be mixed with the inspection part PP with other layout structures and used on the left and right sides respectively.

According to the present invention as described above, since the shooting center line CL of the confirmation camera 120, 220 and the irradiation direction of the laser irradiator 110, 210 can have an angle that can fully confirm the change of the laser pattern caused by the poor placement of the electronic component D, it has excellent inspection reliability through pattern analysis.

For example, if an electronic component is slightly tilted, changes in the laser pattern may not be confirmed if the angle between the center line of the camera being used for confirmation and the irradiation direction of the laser irradiator is small.

However, according to the layout structure of the present invention, the inspection part PP is set in the narrow installation space IS while being able to fully ensure the angle between the shooting center line CL of the camera 120, 220 and the irradiation direction of the laser irradiator 110, 210, so that the change of the laser pattern can be confirmed in the captured image.

For reference, the present invention is mainly explained by confirming whether the placement state of the electronic component is bad or not by the confirmation camera 120, 220. However, it is also possible to confirm whether the electronic component D is bad (damaged, dented, foreign matter attached, etc.) by the confirmation camera 120, 220. Therefore, in this case, the configuration of the inspection part PP of the first embodiment and the second embodiment described above can also be directly applied. That is, according to the embodiment, the confirmation camera 120, 220 can be provided to confirm the placement state of the electronic component D, can be provided to confirm the bad state of the electronic component D, or can be provided to confirm the placement state and bad state of the electronic component D at the same time. Therefore, in the present invention, the meaning of confirming the placement state of the electronic component D can be defined not only as simply confirming whether the placement state has a defect, but also as including confirming whether the electronic component D itself has a defect.

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

100,200: Electronic component camera 110,210: Laser irradiator 120,220: Confirmation camera 130,230: Reflector 141~145,241~243: Setting parts 150,250: Front and rear mover 160,260: Left and right mover 180,280: Controller PM: Pickup module P: Pickup BP: Substrate

FIG. 1 to FIG. 3 are reference diagrams for explaining the background technology.

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

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

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

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

Figures 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 and exploded view of the inspection portion extracted from the photographing device for electronic component processing equipment of FIG. 10 and exploded.

FIG. 12 is a schematic reference diagram for explaining the configuration layout of the inspection portion of FIG. 10 .

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

Domestic storage information (please note in the order of storage institution, date, and number) None Foreign storage information (please note in the order of storage country, institution, date, and number) None

110: Laser irradiator

120: Confirm with camera

130:Reflector

CL: Center Line

D: Electronic components

P: Pickup

PL: vertical line

PM: Pickup module

Claims (4)

A photographing device for electronic component processing equipment comprises: a laser irradiator, which is equipped to irradiate a linear laser onto the upper surface of an electronic component loaded on a loading element, and to irradiate the laser in a horizontal direction; a confirmation camera, which is equipped to confirm the placement state of the electronic component loaded on the loading element by photographing the laser irradiated by the laser irradiator; and a reflector, which reflects the laser irradiated in the horizontal direction by the laser irradiator toward the electronic component located vertically below, so that the confirmation camera can photograph the electronic component irradiated by the laser. electronic component; a mover that moves the laser irradiator, the confirmation camera, and the reflector in a horizontal direction so that the confirmation camera can photograph the electronic component at two or more positions; and a controller that controls the laser irradiator, the confirmation camera, and the mover, wherein at least one of the laser irradiator, the confirmation camera, and the reflector is configured to be combined with a pickup module including a pickup that can grasp or release the electronic component in order to move the electronic component. A photographing device for electronic component processing equipment, comprising: a laser irradiator, configured to irradiate a linear laser onto the upper surface of an electronic component loaded on a loading element, and to irradiate the laser in a horizontal direction; a confirmation camera, configured to confirm the placement status of the electronic component loaded on the loading element by photographing the laser irradiated by the laser irradiator; a reflector, which reflects the laser irradiated in the horizontal direction by the laser irradiator toward the electronic component located vertically below, so that the confirmation camera The device comprises a laser irradiator, a confirmation camera and a reflector, which can shoot electronic components irradiated with laser; a mover, which moves the laser irradiator, the confirmation camera and the reflector in the horizontal direction, so that the confirmation camera can shoot electronic components at more than two positions; and a controller, which controls the laser irradiator, the confirmation camera and the mover, wherein the reflector is arranged between the laser irradiator and the pickup, and the laser irradiator is arranged in front of the pickup in a manner of irradiating the laser backward. A photographing device for electronic component processing equipment comprises: a laser irradiator, which is equipped to irradiate a linear laser to the upper surface of an electronic component loaded on a loading element; a confirmation camera, which confirms the placement state of the electronic component loaded on the loading element by photographing the laser irradiated by the laser irradiator, and its photographing center line is parallel to the horizontal line; a reflector, which bends the photographing center line toward the upper surface of the electronic component irradiated with the laser, so that the confirmation camera can photograph the electronic component irradiated with the laser ; a mover that moves the laser irradiator, the confirmation camera, and the reflector in a horizontal direction so that the confirmation camera can photograph the electronic component at two or more positions; and a controller that controls the laser irradiator, the confirmation camera, and the mover, wherein at least one of the laser irradiator, the confirmation camera, and the reflector is configured to be combined with a pickup module including a pickup that can grasp or release the electronic component in order to move the electronic component. A photographing device for electronic component processing equipment, comprising: a laser irradiator, which is equipped to irradiate a linear laser to the upper surface of an electronic component loaded on a loading element; a confirmation camera, which confirms the placement state of the electronic component loaded on the loading element by photographing the laser irradiated by the laser irradiator, and its photographing center line is parallel to the horizontal line; a reflector, which directs the photographing center line toward the upper surface of the electronic component irradiated with the laser bends so that the confirmation camera can photograph the upper surface of the electronic component irradiated with laser; a mover moves the laser irradiator, the confirmation camera and the reflector in the horizontal direction so that the confirmation camera can photograph the electronic component at more than two positions; and a controller controls the laser irradiator, the confirmation camera and the mover, wherein the reflector is arranged in front of the confirmation camera.