JP5751584B2 - Electronic component mounting equipment - Google Patents

Description

  The present invention relates to an electronic component mounting apparatus that picks up electronic components from a plurality of trays mounted on a tray-type component supply device by means of a suction nozzle and mounts them on a substrate.

  In general, in an electronic component mounting apparatus equipped with a tray-type component supply device, a plurality of trays containing electronic components are mounted on a pallet of the tray-type component supply device, and an electronic component is mounted on the component mounting head from these trays. It is attracted by a nozzle and mounted at a predetermined coordinate position on the circuit board. As this type of electronic component mounting apparatus, for example, there is one described in Patent Document 1.

JP 2008-251705 A

  In the conventional electronic component mounting apparatus of this type, when electronic components of the same component type are accommodated in a plurality of trays, the electronic components can be taken out in order from the tray arranged in the young slot, or The electronic components are taken out in the order registered in advance.

  However, when replenishing parts due to job switching, etc., trays containing used electronic parts with a small number of remaining parts may be set on the pallet, and these used trays are left unused without being used indefinitely. Sometimes.

  For users, from the viewpoint of the expiry date of electronic parts and parts management, they want to use them sequentially from the tray that contains the electronic parts that they are using. To do so, the parts from the tray with the few remaining parts are used. Therefore, there is a problem that the arrangement of the electronic components must be performed so that the operator can be taken out, and the work load on the operator is increased, which requires much time for the setup work.

  The present invention has been made to solve the above-described conventional problems, and by managing the number of remaining parts stored in each tray, it can be used in order from a tray with a small number of remaining parts. An object of the present invention is to provide an electronic component mounting apparatus.

In order to solve the above-described problems, the invention according to claim 1 is characterized in that a substrate transfer device provided on a base for carrying in, carrying out and positioning of the substrate, and a movement supported so as to be movable with respect to the base. A component supply device including a table, a plurality of trays that store electronic components to be mounted on the substrate, and an electronic component that is attached to the moving table and holds an adsorption nozzle that adsorbs the electronic component and is adsorbed to the adsorption nozzle. An electronic component comprising: a component mounting head mounted on the substrate positioned and held by a substrate transport device; component detection means for imaging an electronic component sucked by the suction nozzle; and a control device for controlling the component mounting head in the mounting apparatus, the component supply device is provided with a plurality of pallets mounted a plurality of trays to each stacking shape, wherein the control device, an electronic unit housed in the plurality of trays The part remaining number data storage means for storing the data including the part type and the remaining part number for each tray, and the same part based on the component type and the remaining part number of the electronic parts stored in the remaining part number data storage means Use order determining means for determining the order of use of the trays in order from the smallest number of remaining parts among the plurality of trays positioned on the uppermost surface containing the electronic components of the type, and the use of the trays determined by the use order determining means According to the order, electronic components are sequentially taken out by the component mounting head and mounted on the board.

A feature of the invention according to claim 2 is that, in claim 1, a plurality of the pallets are stored in the magazine in the vertical direction .

A feature of the invention according to claim 3 is that, according to claim 1 or claim 2 , the use order determination processing by the use order determination means is executed when parts are replenished such as job switching.

According to the first aspect of the present invention configured as described above, the component supply device includes a plurality of pallets each having a plurality of trays mounted in a stacked manner, and the control device is an electronic device accommodated in the plurality of trays. The remaining part number data storage means for storing data including the part type and the remaining part number of each part for each tray, and the same part type based on the electronic part part type and the remaining part number stored in the remaining part number data storage means A plurality of trays located on the uppermost surface containing the electronic components, and a use order determining means for determining the use order of the trays in the order of the remaining number of parts, and parts according to the tray use order determined by the use order determining means The electronic components were sequentially taken out by the mounting head and mounted on the board.

With this configuration, the remaining number of parts of a plurality of trays positioned on the stacked uppermost surface is compared to determine the order in which the trays are used, so that the trays with the smallest remaining parts can be used in order. Therefore, the tray containing the used electronic parts will not remain unused for a long period of time, and since this is performed automatically, the operator needs to check the remaining number of parts on the tray and set it in the oldest order. Therefore, the operator's work can be reduced and the setup work time at the time of job switching can be reduced.

According to the second aspect of the invention, since a plurality of pallets are stored in the magazine in the vertical direction, the remaining number of parts on the tray on the top surface stacked on each pallet stored in the magazine is compared. By determining the use order of the trays, it is possible to use them in order from the tray with the few remaining parts.

According to the third aspect of the present invention, the use order determination process by the use order determination unit is executed when the parts are replenished, so that the setup work by the operator can be reduced for job switching or the like.

It is a top view which shows the whole electronic component mounting apparatus suitable for implementation of this invention. It is a figure which shows the suction nozzle part of the component mounting head of an electronic component mounting apparatus . It is a figure which shows the tray with which the pallet of the tray type component supply apparatus of the electronic component mounting apparatus was mounted | worn. It is a figure which shows the control apparatus which controls an electronic component mounting apparatus. It is a figure which shows component data. It is a flowchart for demonstrating the operation | movement which takes out an electronic component from the some tray according to the predetermined order of use. It is a figure which shows component remaining number data. It is a figure which shows the tray type component supply apparatus which shows the Example of this invention. It is explanatory drawing which determines the tray use order in an Example .

Reference examples of the present invention will be described below with reference to the drawings. FIG. 1 shows an overall plan view of an electronic component mounting apparatus 10. The electronic component mounting apparatus 10 includes a tray-type component supply device 11, a feeder-type component supply device 12, a component transfer device 13, and a substrate holding device. A device 14 and a substrate transfer device 15 are provided.

  The board conveyance device 15 is provided on the base 21 of the electronic component mounting apparatus 10, and includes a belt conveyor 22 that conveys the circuit board B. The board conveyance device 15 conveys the circuit board B along the belt conveyor 22 and is on the board holding device 14. And is carried out from the substrate holding device 14. In FIG. 1, the substrate transport direction is the X-axis direction, and the direction orthogonal to the substrate transport direction is the Y-axis direction. Although not shown, the substrate holding device 14 includes a substrate support device that supports the circuit board B from below and a clamp device that clamps the circuit board B.

  The component transfer device 13 is composed of an XY robot, and is supported above the base 21 so as to be movable in the Y-axis direction and supported on the Y-axis movable table 23 so as to be movable in the X-axis direction. The X-axis moving table 24 and a component mounting head 25 mounted on the X-axis moving table 24 are provided. The X-axis moving table 24 and the Y-axis moving table 23 are controlled to move in the X-axis direction and the Y-axis direction by an X-axis servo motor 27 and a Y-axis servo motor 28 (see FIG. 4). .

  As shown in FIG. 2, the component mounting head 25 supports a lifting shaft 30 that can move up and down in the Z-axis direction (vertical direction) orthogonal to the X-axis and Y-axis directions and that can rotate around the Z-axis line. ing. The elevating shaft 30 is controlled to move and rotate in the Z-axis direction by a Z-axis servomotor 31 and a θ-axis servomotor 32 (see FIG. 4). The elevating shaft 30 holds a suction nozzle 33 that sucks the electronic component P.

  In FIG. 1, a board camera 35 is mounted on the X-axis moving table 24, and the board camera 35 takes an image of a reference mark and a board ID mark provided on the circuit board B positioned on the board holding device 14. The substrate position reference information and the substrate ID information are acquired. Based on the board position reference information acquired by the board camera 35, the position of the component mounting head 25 is corrected in the XY direction with respect to the circuit board B, and the mounting operation of the electronic component P is performed based on the board ID information. It comes to control.

  Further, a component camera 36 is provided on the base 21 as component detection means for imaging the electronic component P sucked by the suction nozzle 33 from below. The component camera 36 captures an image of the electronic component P sucked by the suction nozzle 33 of the component mounting head 25 while moving from the component supply devices 11 and 12 onto the circuit board B, and the electronic camera P with respect to the center of the suction nozzle 33 is captured. Detecting misalignment, angular misalignment, etc., and correcting the amount of movement of the component mounting head 25 in the XY directions based on this misalignment, etc., and accurately mounting the electronic component P at a predetermined coordinate position on the circuit board B I can do it.

  The tray-type component supply device 11 and the feeder-type component supply device 12 are provided on both sides of the substrate transfer device 15 so as to be separated from each other in the Y-axis direction. The tray-type component supply device 11 includes a plurality of flat plate-like pallets 41 that are detachably mounted in a plurality of slots S on the device table 11a, and a plurality of trays 42 that store electronic components P in these pallets 41. Are installed.

  On the other hand, a plurality of tape feeders 43 for supplying taped electronic components P are detachably mounted on the device base 12a in the feeder-type component supply device 12, and the plurality of tape feeders 43 are arranged in the X-axis direction. It is installed and mounted in a predetermined slot of the device base 12a.

  As shown in FIG. 3, a bar code 41 a as an identification code is affixed to each pallet 41 of the tray-type component supply device 11, and the bar code 41 a serves as an information indicator for displaying the serial ID of the pallet 41. It is functioning. Each tray 42 mounted on the pallet 41 is affixed with a barcode 42a as an identification code. The barcode 42a is a serial ID (component type) of the electronic component P accommodated in each tray 42. It functions as an information indicator that displays. These bar codes 41a and 42a are read by a bar code reader (not shown) at the time of component replenishment, whereby the serial ID of the pallet 41 and the serial ID of the tray 42 are acquired and stored in a component management server described later. It has become.

Each tray 42 contains electronic components P in X1 rows in the horizontal direction (4 rows in the reference example ) and Y1 rows in the vertical direction (3 rows in the reference example ), and the number of components housed in each tray 42 (Number of remaining parts) is registered in the later-described part data. As an example, the tray 42 located in the upper part of FIG. 3 is a used tray 42 in which the electronic component P is partially consumed.

  FIG. 4 shows a control device 50 that controls the electronic component mounting apparatus 10, and the control device 50 includes a CPU 51, a storage device including a ROM 52 and a RAM 53, and a bus 54 that connects them. An input / output interface 55 is connected to the bus 54, and an input / output device 56 is connected to the input / output interface 55. The input / output device 56 includes a display device 56a that performs necessary guidance (display) for an operator, a keyboard, a mouse, and the like.

  The input / output interface 55 is connected to a motor control unit 57 that controls the servo motors 27, 28, 31, and 32 that drive the component mounting head 25, and is imaged by the board camera 35 and the component camera 36. An image processing device 58 that performs image processing on the received image data is connected. The ROM 52 of the control device 50 stores a mounting control program for controlling the mounting operation of the electronic component mounting apparatus 10.

  Further, a host computer 60 is connected to the control device 50. The host computer 60 controls the plurality of electronic component mounting apparatuses 10 and the printing machines and inspection machines associated therewith, and centrally manages the electronic components P used in each electronic component mounting apparatus 10. It has a function as a parts management server. As the component data DP managed by the component management server, as shown in FIG. 5, data relating to components necessary for producing the circuit board B of each substrate type (model number, dimensions, mounting coordinate position, etc. of the electronic component P). And the data indicating the component type and the remaining number of components for each serial ID of the tray 42 (and feeder 43), and the component data DP is stored in the component management server. Then, when a job is switched in each electronic component mounting apparatus 10, information on components necessary to produce the designated circuit board B is sent from the host computer 60 to the control device 50 of each electronic component mounting apparatus 10. To be sent to. Based on this, data including the number of remaining parts necessary for the production of a circuit board B of a certain board type is created and stored in the RAM 53 of the control device 50.

  Next, the operation of taking out the electronic component P from the tray 42 of the tray-type component supply device 11 according to a predetermined order of use will be described based on the flowchart shown in FIG.

  First, in step S100, the registration work of the electronic component P accommodated in the tray 42 is performed. As shown in the component data DB of FIG. 5, the component registration work is stored in the tray 42 ID, various component data related to the electronic component P stored in the tray 42 of each ID, the component type, and the tray 42. It consists of a correspondence table with the number of parts accommodated (number of remaining parts). These parts registration operations are usually performed in a parts warehouse that stores the tray 42.

  In step S102, when the job (Job) for producing the circuit board B is switched, the job is transmitted to the host computer 60, and the host computer 60 produces the circuit board B of the designated board type to the electronic component mounting apparatus 10. Information on the electronic component P necessary for this is notified and displayed on the display device 56a of the input / output device 56 of the control device 50. Specifically, guidance is given as to which ID tray 42 is mounted on which ID pallet 41 and which pallet 41 is mounted in which slot S of the tray-type component supply device 11.

  Based on the guidance, in step S104, the operator sets the pallet 41 and the tray 42 necessary for the tray-type component supply device 11, and supplies the electronic components P necessary for producing the circuit board B to the tray-type component supply device 11. prepare.

  In this case, the barcode 41a affixed to the pallet 41 and the barcode 42a affixed to the tray 42 are read by a bar code reader (not shown), and the pallet 41 and the tray 42 are correctly set at predetermined positions. Verification (verification) is performed. As a result, as shown in FIG. 7A, component remaining number data DP1 including the mounted pallet ID, the component type of the stored electronic component P, and the remaining number of stored components is created for each tray 42. And stored in the RAM 53 of the control device 50. The storage device (RAM) 53 of the control device 50 constitutes a remaining component number data storage means.

  Here, in FIG. 7A, there are two types of parts necessary for producing a circuit board B of a certain board type, PA and PB, and electronic components P are still used for each tray 42. There are N1 (= X1 × Y1) trays 42 in which the remaining parts are full, and there are trays 42 in which the electronic parts P are partially consumed and the remaining parts N2 or N3 (N1> N2> N3). An example is shown. In other words, the tray 42 with the tray ID “3” containing the component type PA and the tray 42 with the tray ID “6” are in use, and the tray 42 with the tray ID “5” containing the component type PB is used. It shows that it is a use.

  Next, in step S106, the trays 42 are sorted in the order from the smallest number of remaining parts (number of parts accommodated) for each type of parts accommodated in the tray 42, and a usage order determination process for determining the usage order of the trays 42 is performed. . By the use order determination process, the remaining component number data DP1 is edited as shown in FIG. That is, for the component type PA, the tray 42 is first used in the order of use of the tray 42, and the tray 42 with the smallest remaining component number is determined to be the tray 42 with the smallest remaining component number. Is determined to be the tray 42 of “3”. For other unused trays 42, the usage order is determined in the order of young slot numbers.

  For the component type PB, as described above, the usage order of the trays 42 is first determined to be the tray 42 with the least used tray ID “5”. The above-described step S106 constitutes the usage order determining means in the claims.

  Thereafter, in step S108, production of the circuit board B is started. Thereby, when the electronic component P of the component type PA is mounted on the circuit board B, the component mounting apparatus 25 is controlled to move to a predetermined position on the tray 42 with the tray ID “6”, and the tray ID is “6”. The electronic component P is picked up from the tray 42 by the suction nozzle 33 and mounted at a predetermined coordinate position on the circuit board B. Each time the electronic component P is taken out from the tray 42 with the tray ID “06”, the remaining component number of the corresponding tray ID is decremented by one. When this remaining component number becomes 0, the tray ID is “3”. The component mounting head 25 is controlled so as to take out the electronic component P from the tray 42, and the component mounting operation is executed.

  Similarly, when the electronic component P of the component type PB is mounted on the circuit board B, the component mounting operation for taking out the electronic component P from the tray 42 having the tray ID “5” and mounting it on the circuit board B is performed. Executed. In this way, when the component mounting operation is continued and the remaining number of electronic components P accommodated in the component supply device 20 is reduced, the component supply is guided and the supply operation is performed.

  Thus, by switching the job for producing the circuit board B, information including the remaining number of parts necessary for board production is guided from the host computer 60 to the electronic component mounting apparatus 10. The trays 42 are sorted in ascending order of the number of remaining parts (number of parts accommodated) for each type of parts accommodated in 42, and the use order of the trays 42 is determined.

Therefore, according to the above-described reference example , the electronic component mounting apparatus 10 automatically consumes electronic components from the tray 42 having a small number of remaining components. Since it does not remain without being used for a long period of time, and this is performed automatically, it is not necessary for the operator to check the number of remaining parts in the tray 42 and set them in the oldest order, reducing the operator's work, Setup work time when switching jobs can be reduced.

Next, an embodiment of the present invention applied to a tray-type component supply device 111 having stacked trays will be described with reference to FIGS.

  As shown in FIG. 8, a magazine 113 is provided in the storage box 112 of the tray-type component supply device 111 so as to be movable in the vertical direction, and a plurality of pallets 141 are placed in a plurality of slots S in the magazine 113. It is stored one by one. On each pallet 141, a plurality of trays 142 containing electronic components are respectively placed in a stacked state or a stacked state.

Also in this embodiment , as described in the above reference example , the component data DP including the remaining number of components is created in the host computer 62, and when the circuit board B of a certain board type is produced, the circuit board B is produced. The remaining component number data DP1 including the necessary remaining component number is notified from the host computer 62 to the control device of the electronic component mounting apparatus 10, and accordingly, based on the remaining component number accommodated in each tray 142, The order of use is determined.

However, in the case where a plurality of trays 142 are stacked as in the embodiment , the number of remaining parts is normally the total remaining number of all the stacked trays 142. If the number (total remaining number) is used as it is and the order of use is determined, the stacked trays 142 will be used later than the flat stacked trays.

Therefore, the tray Oite the present onset bright, for example, as shown in FIG. 9, the tray 142A is in the uppermost surface, 142B, by determining the order of use by comparing the number of remaining components of 142C, which is staked This prevents the use order of 142 from being postponed.

Note that the remaining component number Nx of the tray 142 on the uppermost surface is obtained by the following equation.
Nx = total remaining number-number of parts per tray x (tray stacking number-1)

  Here, as described in the embodiment, if the number of parts accommodated in each tray 142 is 12 in 3 rows and 4 rows and the number of stacked trays 142 is 3, If the remaining number is 28, the remaining component number Nx of the tray 142 on the uppermost surface is 4 (28-12 × (3-1)) from the above formula.

  Accordingly, the order of use is determined by sorting the number of remaining parts stored in the stacked uppermost tray 142 and the number of remaining parts stored in the flat stacked tray 142 in ascending order of the remaining number of parts. As a result, the electronic components P are sequentially taken out from the tray 142 with a small number of remaining components, and it is possible to prevent a situation where used components remain in the tray 142 for a long period of time.

  In the above-described embodiment, an example in which a plurality of trays 42 are mounted on the pallet 41 has been described. However, a plurality of trays 42 are not necessarily required, and may be one.

  In the above-described embodiment, the electronic component mounting apparatus 10 including the tray-type component supply device 11 and the feeder-type component supply device 12 has been described as an example, but at least the tray-type component supply device 11 is provided. The present invention can be applied to the electronic component mounting apparatus 10.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention described in the claims. Of course, it is possible.

  The electronic component mounting apparatus according to the present invention is suitable for use in mounting an electronic component on a substrate by adsorbing the electronic component from a plurality of trays mounted on the tray-type component supply apparatus using an adsorption nozzle.

  DESCRIPTION OF SYMBOLS 10 ... Electronic component mounting apparatus 11, 111 ... Tray type | mold component supply apparatus, 12 ... Feeder type | mold component supply apparatus, 13 ... Component transfer apparatus, 15 ... Board | substrate conveyance apparatus, 25 ... Component mounting head, 33 ... Adsorption nozzle, 36 ... part detection means (part camera), 41, 141 ... pallet, 42, 142 ... tray, 50 ... control device, 54 ... remaining part number data storage means (RAM), 60 ... host computer, S106 ... use order determination means, P: electronic component, B: substrate.

Claims (3)

A substrate carrying device provided on a base for carrying in, carrying out and positioning of the substrate, a movable base supported so as to be movable with respect to the base, and a plurality of trays containing electronic components to be mounted on the board. And a component mounting head that holds a suction nozzle that is attached to the moving table and sucks an electronic component, and that mounts the electronic component sucked by the suction nozzle on the substrate that is positioned and held by the substrate transport device; In the electronic component mounting apparatus including a component detection unit that images the electronic component sucked by the suction nozzle and a control device that controls the component mounting head .
The component supply apparatus includes a pallet equipped with a plurality of stacked trays,
The control device is stored in a component remaining number data storage unit that stores data including a component type and a component remaining number of electronic components accommodated in the plurality of trays for each tray, and the component remaining number data storage unit. Use order determining means for determining the order of use of the trays in order of decreasing number of remaining parts among a plurality of trays positioned on the uppermost surface containing electronic parts of the same part type based on the component type and the remaining number of electronic components Prepared,
An electronic component mounting apparatus , wherein electronic components are sequentially taken out by the component mounting head in accordance with the tray usage order determined by the usage order determining means and mounted on the substrate. The electronic component mounting apparatus according to claim 1, wherein a plurality of the pallets are stored in a magazine in a vertical direction . 3. The electronic component mounting apparatus according to claim 1 , wherein a use order determining process by the use order determining means is executed when replenishing parts such as job switching.

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