JP2011044543A - Component mounting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance certainty of recognition of a splicing position with respect to a component mounting device which takes out and mounts a component, held by a tape of an electronic component feeder, on a circuit board. <P>SOLUTION: The component mounting device displays a warning for accelerating splicing when the remaining number of components calculated by a component remaining number calculating means reaches a preset remaining number, and starts splicing position detection processing (Fig.6) after an operator inputs a slicing completion indication. Further, the device displays a detection error in splicing position when a successive taking-out error corresponding to a predetermined number is not detected within a splicing position detection range 7, makes the operator input a choice between input of an extension instruction for the splicing position detection range and input of splicing position information in response thereto, and carries out the splicing position detection processing in accordance with the input indication (Fig.8). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a component mounting apparatus.

  In general, an electronic component mounting device is known as a device for mounting electronic components such as an IC, a resistor, and a capacitor on a circuit board.

This electronic component mounting apparatus includes a mounting head that is movably controlled on an XY plane. The mounting head is equipped with a suction nozzle. The electronic component mounting apparatus sucks the electronic component from the electronic component feeder that supplies the electronic component to the suction nozzle, moves the mounting head to the component mounting position on the circuit board, and supplies the electronic component by supplying positive pressure into the suction nozzle. The electronic components are mounted on the circuit board by releasing.
As the electronic component feeder, a reel on which a tape in which a large number of electronic components are sealed at a uniform interval is mounted on the rear end side, and a delivery portion of the electronic component to the mounting head is provided near the front end portion. What you have is applied.
A plurality of electronic component feeders are mounted on the electronic component mounting apparatus. The control unit of the electronic component mounting apparatus controls the feeding of the tape of the electronic component feeder, and controls the position of the mounting head on the XY plane and arranges the electronic head on the suction nozzle of the mounting head. Adsorb the parts and take them out.

At the time of refilling the tape reel holding the component, the end of the tape in use and the start of the new tape are joined together so that the component mounting operation can be continued. Splicing means joining the tapes together, and the joining position between the tapes is called the splicing position.
As described in Patent Document 1, the component mounting apparatus obtains information indicating the number of standard parts held on the tape reel as an initial value of the remaining number of parts, and subtracts the number of used parts from the initial value. Some of them manage the remaining number of parts.
In the invention described in Patent Document 1, in order to accurately recognize the remaining number of parts, a preset number of empty accommodation portions are provided at the splicing positions of the tape being used and the new tape, and the remaining parts are also provided. In the state where the number is within a preset allowable range, when a take-out error has occurred for the number of times corresponding to the number of empty accommodation portions, the remaining number of parts is replaced with a new tape. Alternatively, when there are as many take-out errors as there are empty storage parts and the parts are successfully taken out thereafter, the remaining parts are replaced with new tapes.

Japanese Patent No. 4209243

However, the above conventional techniques have the following problems.
According to the above-described method for counting the empty accommodation portions, the operation of detecting the empty accommodation portions is continued until the splicing position can be detected. If there is an error in the number of empty housing parts due to a splicing error, the supply of the parts held on the new tape is started without detecting the empty housing parts and the information of the parts is not switched to that of the new tape, There is a risk that not only the remaining number information is wrong, but also there is a deviation in the association between the component and its traceability information.

  The present invention has been made in view of the above problems in the prior art, and in a component mounting apparatus that takes out components held on a tape of an electronic component feeder and mounts them on a circuit board, the splicing position can be reliably recognized. The challenge is to increase it.

The invention according to claim 1 for solving the above-described problems is a component mounting apparatus for taking out a component held on a tape mounted on an electronic component feeder by a mounting head and mounting the component on a circuit board.
It is defined to provide a predetermined number of continuous empty accommodation portions at the splicing position of the tape in use and the new tape,
The number of remaining parts of the electronic component feeder is obtained by acquiring information indicating the number of parts held on the tape mounted on the electronic component feeder and subtracting the number of parts taken out from the electronic component feeder from the number of parts held A component remaining number calculating means for calculating
Splicing warning display means for displaying a warning so as to prompt splicing when the remaining number of parts calculated by the remaining part number calculating means reaches a preset remaining number;
The take-out error is detected by the mounting head within a splicing position detection range for a predetermined number of parts including the position on the tape where the remaining part number calculated by the remaining part number calculating unit is 0, and the number of consecutive times is counted. Splicing position detection processing means for executing splicing position detection processing for causing the parts remaining number calculation means to switch the number of remaining parts to the number of parts held on the new tape when the predetermined number is reached;
A detection error display means for displaying a detection error of the splicing position of the tape when the predetermined number of continuous ejection errors are not detected in the splicing position detection range;
Operation input is enabled in conjunction with detection error display by the detection error display means, and the operator selects whether to input the splicing position detection range extension instruction or the splicing position information of the tape. Operation input means at the time of detection error,
If there is an input of the extension instruction, the splicing position detection processing means executes the splicing position detection process up to the end of the splicing position detection range after extension according to the extension instruction, and if there is an input of the splicing position information The component mounting apparatus causes the component remaining number calculating means to calculate the remaining component number based on the splicing position information and the component holding number related to the new tape.

According to a second aspect of the present invention, when the detection error time operation input means is selected to input splicing position information, the component belongs to a new tape that has passed through a component delivery section to the mounting head of the electronic component feeder. It is configured to be able to input splicing position information by number,
The component remaining number calculating means subtracts the number of components that have passed from the component holding number related to the new tape as the component remaining number at the time of splicing position information input,
The component mounting apparatus according to claim 1, wherein the traceability information is automatically corrected at that time.

The invention according to claim 3 includes splicing completion operation input means for allowing an operator to input a splicing completion instruction of the tape.
The splicing position detection processing means sets a splicing position detection range in a range after the position on the tape that is arranged at a component delivery portion to a mounting head of the electronic component feeder when the splicing completion instruction is input. The component mounting apparatus according to claim 1.

  According to a fourth aspect of the present invention, there is provided the component mounting apparatus according to the first aspect, further comprising operation input means that allows the operator to change the setting of the splicing position detection range.

  According to the first aspect of the present invention, when the remaining number of parts reaches the preset remaining number, a warning is displayed so as to prompt splicing, so that the splicing position cannot be recognized due to incomplete splicing. Therefore, the splicing position detection error can be improved, the splicing position detection error can be displayed, and the operator can input an instruction to extend the splicing position detection range or the splicing position information. Even when the splicing position cannot be detected due to a human error or a detection error by the apparatus, the splicing position can be detected, and the reliability of the splicing position detection can be improved.

  According to the second aspect of the present invention, even if the splicing position passes without being detected, the splicing position is recognized by the number of parts that have been input by the operator. There is an effect that it can be increased.

  According to the third aspect of the present invention, since the splicing completion instruction is input from the operator after the warning display for prompting splicing, the splicing position detection process is started, so that the useless detection operation before the completion of splicing is prevented and the splicing position detection is performed. Since the splicing position detection range can be limited to a range where there is a possibility of this, there is an effect that the certainty of detection of the splicing position can be improved.

  According to the fourth aspect of the present invention, since the operator is provided with an operation input means that allows the operator to change the setting of the splicing position detection range, the splicing position detection range can be changed based on the situation judgment of the operator. There is an effect that the certainty of position detection can be improved.

1 is a configuration block diagram showing a main configuration of a component mounting apparatus according to an embodiment of the present invention. It is a top view of the component holding tape before and after the splicing position, and shows a situation in which there are five prescribed empty accommodation portions at the splicing position and are included in the splicing position detection range. It is a top view of the component holding tape before and after the splicing position, and shows a situation that the splicing position detection range includes four empty accommodation portions at the splicing position, which is one less than the standard. It is a top view of the component holding tape before and after the splicing position, and shows a situation where there are five stipulated accommodating portions at the splicing position and outside the initial splicing position detection range. It is a top view of the component holding tape before and after the splicing position, and shows a situation in which five empty accommodating portions at the splicing position are included in the extended portion of the extended splicing position detection range. It is a flowchart of the splicing warning process by the component mounting apparatus which concerns on one Embodiment of this invention. It is a flowchart of the splicing position detection process by the component mounting apparatus which concerns on one Embodiment of this invention. It is a flowchart of the splicing position detection range end process by the component mounting apparatus which concerns on one Embodiment of this invention.

  An embodiment of the present invention will be described below with reference to the drawings. The following is one embodiment of the present invention and does not limit the present invention.

As shown in FIG. 1, a component mounting apparatus according to an embodiment of the present invention includes a control device 1, a mounting head 2 equipped with a suction nozzle, a circuit board transfer device 3, an electronic component feeder 4, and a display. A device 5 and an operation input device 6 are provided. Although not shown, the component mounting apparatus includes a CCD camera and sensors.
One or a plurality of mounting heads 2 are provided. A plurality of electronic component feeders 4 are provided. As shown in FIG. 2, each electronic component feeder 4 is equipped with a tape on which a large number of electronic components are linked and held around a reel.
The display device 5 has an image display function and an audio display function.
As the operation input device 6, an input device using operation keys or an input device using a touch sensor installed on the display screen of the display device 5 is applied. As a form of the display device 5 and the operation input device 6, a device installed in the component mounting device main body, a portable terminal connected to the component mounting device main body via a wireless communication line, or the like is applied.

In this component mounting apparatus, the components held on the tape mounted on the electronic component feeder 4 are taken out by the mounting head 2 and mounted on the circuit board.
The control device 1 includes an arithmetic device and a storage device. The control device 1 controls each part and controls the position of the mounting head 2, the control of the suction nozzle extension and suction operation, the circuit board transport control of the circuit board transport device 3, the tape feed control of the electronic component feeder 4, and the display device 5. The display output control, the processing of input information from the operation input device 6 and the information processing according to the program are carried out, and the component mounting operation is controlled. In addition, the means described below is configured in cooperation with each part as necessary.

  The control device 1 constitutes the component remaining number calculating means described above. For this purpose, the control device 1 acquires information indicating the number of component parts held on the standard held on the tape mounted on the electronic component feeder 4. Furthermore, in parallel with the progress of the component mounting operation, the control device 1 calculates the number of remaining components of the electronic component feeder 4 by subtracting the number of components taken out from the electronic component feeder 4 from the number of retained components, and stores and stores the number. To do.

  Moreover, the control apparatus 1 comprises the splicing warning display means mentioned above. For this purpose, the control device 1 displays a warning on the display device 5 so as to prompt splicing when the remaining component number calculated as described above reaches a preset remaining number. The setting remaining number (“part remaining number 1”) related to the splicing warning display is input with an initial value when the program is written, stored in the storage device, and can be changed by the operation input device 6. That is, the component mounting apparatus includes an operation input unit that allows the operator to change the setting of the remaining component number 1. In setting the remaining part number 1, the splicing warning start position is set by the remaining part number based on the calculated remaining number 0.

This component mounting apparatus is defined so as to provide a predetermined number (for example, five) of continuous empty accommodation portions at the splicing positions of a tape in use and a new tape mounted on the electronic component feeder 4, and a predetermined number of continuous The empty accommodation portion thus detected is detected as a splicing position.
The control device 1 constitutes the splicing position detection processing means described above. For this purpose, the control device 1 receives a sensor signal indicating an extraction error by the mounting head 2.
Further, the control device 1 executes the next splicing position detection process in the splicing position detection range. That is, the control device 1 counts the continuous number of take-out errors by the mounting head 2 and switches the remaining number of parts to the number of parts held on the new tape when the number reaches a predetermined number.
The splicing position detection range corresponds to a predetermined number of parts including the position on the tape where the remaining part number calculated as described above is zero. As for the splicing position detection range, an initial value is inputted and stored in the storage device when the program is written, and can be changed by the operation input device 6. That is, the component mounting apparatus includes an operation input unit that allows the operator to change the setting of the splicing position detection range. The setting of the splicing position detection range is set by variables such as the length of the splicing position detection range, the start position and the end position of the splicing position detection, the length is determined by the number of parts, and the start position is calculated by the remaining number 0. Depending on the number of remaining parts as the base point, the end position is set by setting the remaining number 0 in the calculation as the base point (-number of remaining parts). In the case of setting the operation only for the length, processing is performed so that the remaining 0 points in the calculation are in the center. However, in the present embodiment, the splicing position detection process starts after the input of the splicing completion instruction from the operator, and this is given priority.

  The control device 1 constitutes the detection error display means described above. Therefore, the control device 1 displays a splicing position detection error on the display device 5 when the predetermined number of continuous extraction errors are not detected in the splicing position detection range.

  The control device 1 can perform operation input in conjunction with the detection error display, and allows the operator to select whether to input an instruction to extend the splicing position detection range or to input splicing position information. Configure the means. For this purpose, the control device 1 displays a detection error on the display device 5, further displays an operation guide requesting the selection, and processes an input from the operator via the operation input device 6. As the splicing position detection process of the control device 1, if there is an extension instruction input, the splicing position detection process is executed up to the end of the splicing position detection range after extension according to the extension instruction, and if the splicing position information is input The number of remaining parts is calculated based on the splicing position information and the number of parts held for the new tape.

  Further, processing contents relating to splicing of the component mounting apparatus will be described with reference to FIGS.

The component mounting apparatus executes a splicing warning process shown in FIG. 6 and described below.
First, the control device 1 determines whether or not each electronic component feeder 4 is a splicing target (step S1). The splicing target indicates an item that requires splicing. Therefore, the electronic component feeder 4 that does not require splicing is excluded from the splicing targets. Information on whether or not the target is splicing is input in advance by the operator as a setting of the electronic component feeder 4 via the operation input device 6. The control device 1 stores and holds information on whether or not it is a splicing target and makes a determination based on this information.
The control device 1 does not display a warning for the electronic component feeder 4 that is not subject to splicing (NO in step S1).

  The control device 1 determines whether or not the calculated remaining component number is within the remaining component number 1 for the electronic component feeder 4 to be spliced (step S2). If NO in step S2, the mounting head 2 sucks the next component. After the operation (step S3), the process returns to step S1 to determine whether or not the electronic component feeder 4 that has delivered the component is to be spliced.

If YES at step S2, control device 1 displays a splicing warning on display device 5 (step S4). The splicing warning display is performed in a form that specifies the electronic component feeder 4 to be warned. In conjunction with this warning display, the control device 1 controls the display device 5 to develop a display for guiding the operator to input a splicing completion instruction. The splicing completion instruction input guidance may be displayed at the same time as the splicing warning display, or may be developed according to the operation input from the operator after the splicing warning display.
After the operator is prompted by the splicing warning display and performs splicing, the operator inputs the splicing completion instruction by operating the operation input device 6, and the control device 1 receives the splicing completion instruction input from the operator via the operation input device 6. An input is received (step S5).
Upon receiving the input of the splicing completion instruction, the control device 1 starts splicing position detection processing (FIG. 7) (step S6).

  As described above, the control device 1 executes the splicing position detection process after receiving the input of the splicing completion instruction. That is, the control device 1 performs the component to the mounting head 2 of the electronic component feeder 4 when the splicing completion instruction is input. A splicing position detection range is set to a range after the position on the tape arranged in the transfer section.

Next, the splicing position detection process will be described. The component mounting apparatus executes a splicing position detection process shown in FIG. 7 and described below.
First, the control device 1 determines whether or not the splicing position detection range has been entered step by step with the sequential subtraction process of the remaining number of parts (step S11).
If NO in step S11, only the normal component suction mounting operation (step S18) by the mounting head 2 is continued.
In the case of YES in step S11, the following processing is executed together with the component suction operation (step S12) by the mounting head 2. That is, the controller 1 determines whether or not there is a suction error after the component suction by the mounting head 2 (step S12) (step S13).
In the case of NO in step S13, the control device 1 executes the component mounting operation as successful suction (step S15), clears the suction error counter (step S16), and further proceeds to the next component suction operation (step S12). .
If YES in step S13, the controller 1 advances the suction error counter, and determines whether or not the number of consecutive suction errors is a number corresponding to a predetermined number of empty accommodation portions provided at the splicing position (step S14).
In the case of NO at step S14, the control device 1 advances the processing to the next component suction operation (step S12).
If YES in step S14, the control device 1 switches the calculated number of remaining parts to the number of parts held on the new tape, performs processing such as associating necessary traceability information (splicing position detection completion processing: step S17), and splicing The position detection process ends.

The above splicing position detection process will be described with reference to FIG. Further, the splicing position detection range end process will be described with reference to FIGS. 3 to 5 and FIG. The predetermined number of empty accommodation portions provided at the splicing position is five.
In FIG. 2 to FIG. 5, the squares indicate the component accommodating portions, 7 is the splicing position detection range, 8 a is the component holding portion of the old tape used earlier, and “remaining number 0” is calculated by the control device 1. The position of the remaining number of parts is 0, 8b is a parts holding part for a new tape, and 9a and 9b are empty accommodation parts constituted by splicing of the end part of the old tape and the starting end part of the new tape. The empty housing portion 9a correctly constitutes five empty spaces.

  It is assumed that adsorption errors occur continuously in two consecutive 10 pieces shown in FIG. In this case, step S12 → step S13 (YES) → step S14 (NO) → step S12 → step S13 (YES) → step S14 (NO) → step S12 → step S13 (NO) → step S15 → step S16 Is processed. That is, the two consecutive 10 pieces are within the splicing position detection range 7, but since the continuous suction error does not reach five times, it is not detected as a splicing position.

  If the sucking operation further proceeds after passing through two consecutive 10 pieces, the sucking error will occur five times continuously in the empty accommodation portion 9a. Therefore, YES is determined in step S14, and the control device 1 newly calculates the remaining number of parts. Switching to the number of parts held on the tape is performed, and processing such as associating necessary traceability information is performed (step S17). As a result, the control device 1 recognizes that the number of parts held on the new tape counted from the first part of the new tape part holding unit 8b is the remaining number of parts.

On the other hand, in the situation shown in FIG. 3, the number of empty accommodation portions 9b provided at the splicing position is four. An error in the number of empty accommodating portions may occur due to a splicing operation error.
Further, in the situation shown in FIG. 4, there is a prescribed empty accommodating portion 9 a that constitutes five consecutive empty spaces, and the empty accommodating portion 9 a is behind the splicing position detection range 7. Such a situation may occur when the actual number of remaining parts is larger than the calculated number of remaining parts.
Even in the situation shown in FIG. 3 or in the situation shown in FIG. 4, since there are no five consecutive empty accommodation portions in the splicing position detection range 7, the splicing position detection process is performed in the splicing position detection range 7. The splicing position cannot be detected even if it is advanced to the end.
In order to solve this, a splicing position detection range end process shown in FIG. 8 is introduced.

As shown in FIG. 8, as the splicing position detection range end process, first, the control device 1 determines whether or not the splicing position detection range has ended with the sequential subtraction of the remaining number of parts by the part suction operation (step S <b> 21). (Step S22).
In the case of NO at step S22, the control device 1 controls the mounting head 2 to execute the component mounting operation (step S23), and enters the next suction operation (step S21).

If YES in step S22, the control device 1 causes the display device 5 to display a splicing position detection error (step S24). In the situation shown in FIGS. 3 and 4, the splicing position detection error is displayed on the display device 5 by this step at the time when the splicing position detection range 7 reaches the end.
Further, the control device 1 displays on the display device 5 an operation guide as to whether to input an instruction to extend the splicing position detection range 7 or to input splicing position information (step S25).

In the situation shown in FIG. 4, the operator can confirm that there is a prescribed empty accommodation portion 9 a ahead of the splicing position detection range 7, so the operator selects extension.
If NO in step S25, that is, if an instruction to extend the splicing position detection range 7 is input from the operator, the control device 1 provides the extension range 7e as shown in FIG. 5 to extend the splicing position detection range (step S29), the process proceeds to the splicing position detection process shown in FIG. 7, and the splicing position detection process is restarted (step S30). The length of the extension range 7e may be set automatically by the control device 1 to a length that is set in advance and stored in the control device 1, or the control device 1 asks the operator for the length of the extension range 7e. It may be set by selecting or inputting the length of the extended range 7e by selecting the number or inputting the numerical value of the number of parts.

Since the operator can confirm that the splicing position has passed in the situation shown in FIG. 3, the operator selects to input splicing position information.
If YES in step S25, that is, if the operator has selected to input splicing position information, the control device 1 controls the display device 5 to determine whether there is a difference in the number of parts between the current position and the splicing position. The operator is requested to input no (step S26).
When it is input that there is no difference in the number of parts by the input through the operation input device 6 from the operator (NO in step S26), the control device 1 sets the calculated remaining number of parts on the new tape with the current position as the splicing position. Switching to the holding number, processing such as associating necessary traceability information is performed (splicing position detection completion processing: step S28).
When it is input that there is a difference in the number of parts by an input from the operator via the operation input device 6 (YES in step S26), the control device 1 controls the display device 5 to control the components between the current position and the splicing position. The operator is requested to input the number, and the number of parts is received from the operator via the operation input device 6 (step S27). In other words, the splicing position information is input according to the number of parts belonging to the new tape 8b that has passed the part delivery part to the mounting head 2 of the electronic part feeder 4.
After step S27, the control device 1 switches the calculated number of remaining parts at the current position to a number obtained by subtracting the number of input parts in step S27 from the number of parts held on the new tape, and performs processing such as associating necessary traceability information. (Splicing position detection completion processing: step S28).

  By executing the above splicing position detection range end process and executing it, the splicing position can be detected even if the splicing position cannot be detected due to human error or detection error by the device. The certainty of position detection can be increased.

DESCRIPTION OF SYMBOLS 1 Control apparatus 2 Mounting head 3 Circuit board conveying apparatus 4 Electronic component feeder 5 Display apparatus 6 Operation input apparatus 7 Splicing position detection range 7e Extension range 8a Old tape component holding part 8b New tape component holding part 9a Specified empty accommodation part 9b Empty space 1 less than specified

Claims (4)

In a component mounting apparatus that takes out a component held on a tape mounted on an electronic component feeder by a mounting head and mounts it on a circuit board.
It is defined to provide a predetermined number of continuous empty accommodation portions at the splicing position of the tape in use and the new tape,
The number of remaining parts of the electronic component feeder is obtained by acquiring information indicating the number of parts held on the tape mounted on the electronic component feeder and subtracting the number of parts taken out from the electronic component feeder from the number of parts held A component remaining number calculating means for calculating
Splicing warning display means for displaying a warning so as to prompt splicing when the remaining number of parts calculated by the remaining part number calculating means reaches a preset remaining number;
The take-out error is detected by the mounting head within a splicing position detection range for a predetermined number of parts including the position on the tape where the remaining part number calculated by the remaining part number calculating unit is 0, and the number of consecutive times is counted. Splicing position detection processing means for executing splicing position detection processing for causing the parts remaining number calculation means to switch the number of remaining parts to the number of parts held on the new tape when the predetermined number is reached;
A detection error display means for displaying a detection error of the splicing position of the tape when the predetermined number of continuous ejection errors are not detected in the splicing position detection range;
Operation input is enabled in conjunction with detection error display by the detection error display means, and the operator selects whether to input the splicing position detection range extension instruction or the splicing position information of the tape. Operation input means at the time of detection error,
If there is an input of the extension instruction, the splicing position detection processing means executes the splicing position detection process up to the end of the splicing position detection range after extension according to the extension instruction, and if there is an input of the splicing position information A component mounting apparatus that causes the component remaining number calculation means to calculate the remaining component number based on the splicing position information and the component holding number related to a new tape. When the input of splicing position information is selected, the operation input means at the time of detection error inputs the splicing position information according to the number of parts belonging to the new tape that has passed through the part delivery part to the mounting head of the electronic component feeder. Can be configured and
The component remaining number calculating means subtracts the number of components that have passed from the component holding number related to the new tape as the component remaining number at the time of splicing position information input,
The component mounting apparatus according to claim 1, wherein the traceability information is automatically corrected at that time. Comprising splicing completion operation input means for allowing an operator to input a splicing completion instruction of the tape;
The splicing position detection processing means sets a splicing position detection range in a range after the position on the tape that is arranged at a component delivery portion to a mounting head of the electronic component feeder when the splicing completion instruction is input. The component mounting apparatus according to claim 1.   The component mounting apparatus according to claim 1, further comprising an operation input unit that allows an operator to change the setting of the splicing position detection range.

Images