JP2002217594A - Method and apparatus for inserting electronic component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress decreases in a mounting ratio and an operating ratio by early discovering the fault of a component holding pallet by absorbing the difference of workers by an automatic decision of the fault of the pallet. SOLUTION: A method for inserting an electronic component comprises the steps of receiving the component 1 from a component supply unit 10, by using a circulating type component conveying unit 20 having a plurality of component holding pallets 25; conveying the component 1 to an inserting head 40; counting the number of times of occurring mistakes at each pallet for conveying the component 1, when the component 1 is inserted into a board hole by the head 40; deciding a fault pallet at the pallet 25, if the number of times of occurring mistakes exceeds a prescribed value or if a mistake occurring rate calculated from the number of times of the occurring mistakes exceeds the prescribed value, and thereafter not supplying the component to the fault pallet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for automatically inserting electronic parts with leads into a printed circuit board, and more particularly to a method and apparatus for inserting electronic parts with leads into a circulating part transporter. The present invention relates to a method and an apparatus for inserting an electronic component in a case where electronic components with lead wires are sequentially conveyed to an insertion head portion and inserted into a printed circuit board hole by the insertion head portion.

[0002]

2. Description of the Related Art Conventionally, in a process for inserting electronic components from a component supply unit to a plurality of component holding pallets and transporting the electronic components to an insertion head, an electronic component inserting machine with a lead wire is used to transport electronic components. There is a known example in which when a component holding pallet fails and becomes unusable, the component holding pallet is set manually so that the component holding pallet is not used and the mounting of the machine can be continued (Japanese Patent Application Laid-Open No. 63-232494).

[0003]

By the way, in the above method, it is necessary for an operator to judge that a defect has occurred in a component holding pallet for transporting components, and the defective pallet is used until a defect of the pallet is noticed. As a result, the mounting rate of components has decreased, and the number of times the machine has been stopped has increased, resulting in a lower operating rate. In addition, there is also a problem due to a difference in time required to determine a defect due to a difference between workers.

SUMMARY OF THE INVENTION In view of the above, the present invention absorbs differences among workers by automatically judging a defect of a component holding pallet, and minimizes a decrease in a mounting rate and an operating rate by early detection of a defect of a component holding pallet. It is an object of the present invention to provide a method and apparatus for inserting an electronic component, which are limited to a minimum.

[0005] Other objects and novel features of the present invention will be clarified in embodiments described later.

[0006]

In order to achieve the above object, an electronic component insertion method according to the present invention uses a circulating component transporter having a plurality of component holding pallets to transfer electronic components from a component supply unit. Received and transported to the insertion head part,
In the case where the electronic component is inserted into the board hole by the insertion head, the number of occurrences of errors is counted for each component holding pallet for transporting the electronic components, and when the number of occurrences exceeds a predetermined value, or When the error rate calculated from the number of occurrences exceeds a predetermined value, the component holding pallet is determined to be a defective pallet, and thereafter, no electronic components are supplied to the defective pallet.

An electronic component insertion apparatus according to the present invention includes a component supply unit for supplying electronic components, a circulating component transport unit having a plurality of component holding pallets, and an insertion head unit for inserting electronic components into board holes. A holding error detecting unit that detects an electronic component holding error of a component holding pallet that receives an electronic component from the component supply unit and conveys the electronic component to the insertion head unit, and an insertion error that detects an electronic component insertion error in a board hole. At least one of the detection means is provided, and the number of miss detections of at least one of the holding error detection means and the insertion error detection means is counted, and the number of error detections or the error detection rate calculated from the number of error detections is predetermined. Control means for controlling a component holding pallet exceeding the value as a defective pallet so as not to supply an electronic component.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an electronic component insertion method and apparatus according to an embodiment of the present invention.

FIG. 1 shows a mechanism part of an embodiment of the present invention, FIG. 2 shows a motor control system of each mechanism part, and FIG. 3 shows a control system for managing the number of errors occurring in a component holding pallet. FIG. 4 is a flowchart for explaining the operation,
5 to 9 are conceptual diagrams for explaining the operation.

[0010] As shown in FIG.
A component supply unit for sequentially supplying electronic components with leads in accordance with a predetermined insertion order, a circulating component transport unit for sequentially transporting electronic components with leads supplied from the component supply unit, An insertion head unit 40 that receives an electronic component with a lead wire from the type component transport unit 20 and inserts it into an insertion hole of a printed circuit board 50, and a clinch that cuts, bends, and fixes the lead wire of the electronic component with a lead wire inserted into the printed circuit board 50. A moving table (not shown) for supporting the printed circuit board 50 so as to be movable horizontally.

The component supply unit 10 will be described. The component supply unit 10 has a plurality of tape feeders 11 mounted on a mounting table 12 at predetermined intervals. Each of the tape feeders 11 is connected to a reel (not shown) around which a series of electronic components are wound and an electronic component with lead wires. 1 is pulled out and set.

A component supply drive shaft 13 is provided below the mounting table 12. MB is an AC servomotor, which is a drive motor for the component supply unit 10. The rotational motion of the MB is transmitted to a component supply unit drive shaft 13 connected by a timing pulley and a timing belt. A rotary encoder EB is directly connected to MB. A plurality of tape feeder drive cams 14 are fixed to the component supply unit drive shaft 13 at the same interval as the tape feeder mounting position. The component supply unit 10 receives the connection signal (not shown) and sets each tape feeder driving lever 15 to the cam 14.
Connect to. Specific driven tape feeder 11
Cuts the lead wire of the electronic component with lead wire 1 and separates it from the tape 2 (or cuts the tape 2 so as to have one electronic component with lead wire) and transports the electronic component 1 to the circulating component transport section 20. To the pallet 25.

The AC servo motor MB is a main drive motor, and the component supply unit drive shaft 13 is a main drive shaft. At the time of normal mounting, the rotation position output signal of the EB serves as a command signal to the remaining plurality of slave drive motors described later.

The circulating component conveying section 20 will be described.
Chain 2 between three sprockets 21, 22, 23
4 are stretched horizontally, and a number of component holding pallets 25 are fixed to the chain 24 at predetermined intervals. AC servo motor M, which is the drive motor for the circulation type part transfer unit
The sprocket connected to P is the drive sprocket 21 of the chain 24. When the chain 24 is driven, the pallet 25 moves intermittently in the direction of the arrow. 2
A number of idler rollers 26, 27 are pivotally supported between the sprockets.

The tape feeders 11 of the component supply unit 10 are arranged at the same intervals as the pallets 25 along the linear portion of the chain 24. One electronic component 1 with a lead wire is delivered and arranged from the tape feeder 11 to each pallet 25 in the order specified by the mounting program. After holding the electronic component 1, each pallet 25 is intermittently sent in the direction of the arrow.

The rotational movement of the AC servomotor MP is transmitted to a rotary drive shaft 29 of the drive sprocket 21 connected by a timing pulley 28 and a timing belt. A rotary encoder EP is directly connected to MP. The rotary drive shaft 29 of the sprocket 21 is a drive shaft of a circulating component conveying unit.

After the pallet 25 makes a quarter turn around the sprocket 21 in the direction of the arrow, the electronic components held on the pallet are transferred to the insertion head 40 at the transfer position 32.

A component detecting section 31 is disposed in front of the transfer position 32 along the circulating component transport section 20, and a discharge section 33 is disposed at a position past the transfer position 32. Electronic component 1 held and transported by pallet 25
Are inspected one by one by a component detection unit 31 (also serving as a component holding detector) including a camera. Items to be inspected are the presence or absence of electronic components, whether or not a specified number of leads are present, whether or not the leads are bent, and whether or not the molded state of the components is poor. Note that the component detection unit 31 may be used in combination with an optical sensor instead of a camera.

If the electronic component 1 is determined to be mountable by the detection unit 31, the insertion head unit 40 is placed at the delivery position 32.
Passed to. If the detecting unit 31 determines that mounting is impossible, the discharging unit 3 is not transferred to the insertion head unit 40.
Exhausted at 3. In this case, the same component as the discharged component is mounted again by performing a recovery sequence.

If the pallet 25 does not hold the electronic component 1, it is detected as a holding error.

The insertion head section 40 will be described. The insertion head unit 40 includes a delivery chuck 41 and an insertion head 4.
2 is provided. The delivery chuck 41 has at least a chuck opening / closing function and a horizontal movement function, and sandwiches and transfers the electronic component 1 with lead wires from the pallet 25 to the insertion head 42 at the delivery position 32. Insertion head 4
Numeral 2 is for inserting the delivered electronic component into the insertion hole of the printed circuit board 50. The insertion head 42 includes an insertion guide 44 for holding the lead wire of the electronic component and guiding it to the insertion hole of the printed circuit board 50, and a push rod 43 for holding and pressing the head of the electronic component and inserting the electronic component into the printed circuit board 50. It has.

MZ1 is an AC servo motor, which enables forward and reverse drive by a drive motor of the insertion head unit 40, and has a forward operation direction in which the insertion head 42 receives and inserts electronic components from the circulating component transport unit 20 in the forward direction. The driving control means controls to reversely drive the electronic component held by the insertion head 42 in the operation direction of returning the electronic component held by the insertion head 42 to the circulating component transport unit 20 that has transported the electronic component. MZ1
Is transmitted to the insertion head drive shaft 45 connected by the timing pulley and the timing belt. M
A rotary encoder EZ1 is directly connected to Z1. EZ1 detects the rotational position. A plurality of cams 46 are attached to the insertion head drive shaft 45, and each lever 47 connected to the cam 46 drives each part of the insertion head to open / close and swing the delivery chuck 41; The operation of raising and lowering the insertion head 42, the operation of raising and lowering the push rod 43, and the operation of opening and closing the insertion guide 44 are performed.

MC1 is an AC servo motor, which is a direction turning drive motor of the insertion head 42. The rotational movement of MC1 is transmitted to the insertion head direction turning pulley 48 connected by the timing pulley and the timing belt.
A rotary encoder EC1 is directly connected to MC1. MC1 is the electronic component 1 received by the insertion head 42.
Before inserting the substrate into the substrate 50, the insertion head 42 is turned in the insertion direction specified by the mounting program.

The drive motor MZ1 of the insertion head section 40 is capable of normal rotation and reverse rotation. MZ in normal operation
1 by the normal rotation drive (in the direction of the arrow in the figure),
After the electronic component held by the electronic component is first inserted into the substrate 50, the electronic component to be inserted next is received from the pallet and stopped at the insertion standby position. This one operation is one cycle operation of the insertion head unit. This series of insertion cycles continues due to the continuous normal rotation of MZ1. On the other hand, when the MZ1 is driven to rotate in the reverse direction with respect to the insertion head 42 holding the electronic component to be inserted next and stopped at the insertion standby position, the electronic component to be inserted next carries the electronic component to be inserted next. It is returned to the predetermined pallet 25.

The clinch section 60 will be described. The clinch unit 60 is fixed to face the insertion head 42 with the printed board 50 interposed therebetween, and cuts and bends a lead wire of the electronic component inserted into the insertion hole of the board 50 to fix the electronic component to the board. The clinch head 61 includes a fixed blade (not shown) for cutting a lead wire and a movable blade 62.

MZ2 is an AC servomotor, which is a drive motor for the clinch unit 60. The rotational motion of the MZ2 is transmitted to a clinch unit drive shaft 63 connected by a timing pulley and a timing belt. A rotary encoder EZ2 is directly connected to MZ2. EZ2 detects the rotational position. A plurality of cams 64 are attached to the clinch unit drive shaft 63, and each drive lever 65 is driven by the rotation of the cam 64. That is, the clinch head 61
And the movable blade 62 that cuts and bends a lead wire of an electronic component.

MC2 is an AC servo motor, which is a direction turning drive motor of the clinch unit 60. The rotational movement of the MC 2 is transmitted to the directional turning pulley 67 of the clinch portion connected by the timing pulley and the timing belt. A rotary encoder EC2 is directly connected to MC2. The MC 2 is turned in the insertion direction specified by the mounting program before the clinch head 61 moves up.
The rotation of the clinch unit drive shaft 63 causes the clinch head 61 to rotate.
Rises to the lower surface of the substrate 50, cuts and bends the lead wires of the electronic component inserted into the insertion hole of the substrate, and fixes the electronic component to the substrate 50 to complete the mounting.

In the clinch head 61, there is provided an insertion error detector 70 for inspecting whether the lead wires of the electronic component are inserted, cut or bent as specified in the specified number. Here, it is determined whether each of the inserted electronic components has been correctly inserted by the clinch unit 60 or an insertion error has occurred.

If it is determined that the insertion is incorrect, a warning is given to the operator by an alarm, and each drive motor of the apparatus is cycle-stopped.

The printed circuit board 50 is placed on a moving table (not shown).
It has a function of supporting 0 and moving in the horizontal X, Y directions.

FIG. 2 is a block diagram of a drive system during normal mounting. The symbols and names of each drive motor and rotary encoder in FIG. 1 are described again in FIG.

The drive motor MB of the component supply unit 10 is a main drive motor, and is driven using the component supply unit drive shaft 13 as a main drive shaft. The rotation position output signal of the rotary encoder EB directly connected to the MB serves as a command signal for synchronizing the slave drive motor of the present apparatus. The drive motor MP of the circulation-type component conveyance unit 20 is a sub-drive motor, and drives the circulation-type component conveyance unit drive shaft 29 as a sub-drive shaft. Insertion head 40
Is a driven motor, and drives the insertion head drive shaft 45 as a driven shaft. The drive motor MC1 for turning the insertion head is a slave drive motor. The drive motor MZ2 of the clinch unit 60 is a slave drive motor, and drives the clinch unit drive shaft 63 as a slave drive shaft. The clinch turning drive motor MC2 is a slave drive motor.

The drive control means (synchronous phase control unit) 80 detects the rotational position output signals of the respective rotary encoders, and drives the drive motors MP, MZ1, MC1, MZ2, MC2 which are the slave drive motors with respect to the main drive motor MB. Are synchronized.

MZ1 and MC1 inside the insertion head section 40
Since the MC1 follows the operation of the insertion head itself, a control is performed in which the MZ1 is the main and the MC1 is the subordinate.

Similarly, MZ2 and MZ inside the clinch unit 60
In the interrelationship with C2, since MC2 follows the operation of the clinch unit itself, control for making MZ2 the main and MC2 the slave is also added.

On the other hand, when performing a recovery sequence for correction mounting, the main drive motor and each of the slave drive motors are operated asynchronously.

In the clinch unit 60, when the insertion error is determined by the insertion error detector 70, the operator removes the insertion error component on the printed circuit board and starts the reinsertion operation, that is, the recovery start. . In this case, the drive motor MZ1 of the insertion head unit 40 rotates independently in the reverse direction to return the next-order component to the pallet 25 that has transported the next-order component from the insertion head unit 40 (the transfer head 41 uses the delivery chuck 41 to insert the next head). To pallet 25). Next, the same replacement component as the one that has been inserted incorrectly due to the single operation of the main drive motor MB of the component supply unit 10 is supplied from the tape feeder 11. The substitute component is conveyed to the delivery position to the insertion head unit 40 by the independent operation of the drive motor MP of the circulation type component conveyance unit 20. Thereafter, the main drive motor MB and the slave drive motor are driven synchronously, and if the replacement part is determined to be mountable via the detection unit 31 during the transportation of the replacement part, the replacement part is inserted into the insertion head unit 40.
To implement reinsertion. Thereafter, the electronic components subsequent to the next component are returned to the normal insertion operation.

The drive control means 80 also controls the main drive motor and the slave drive motor when such an insertion error occurs.

FIG. 3A shows a control system for managing the number of insertion errors of the component holding pallet 25 in the electronic component insertion device. In this figure, the electronic component insertion device control unit 90 has a central processing unit CPU, a memory M, and the like.
A display 91 and an operation panel 92 are connected thereto, and detection signals of the component detection unit 31 as a component holding detector in the circulating component transport unit 20 and the insertion error detector 70 in the clinch unit 60 are input. It has become.

As shown in FIG. 3B, counters corresponding to the actual pallet numbers No. 1, No. 2, No. 3, No. 4,. No.2
Counter, pallet No. 3 counter, pallet No. 4 counter,...) Are prepared. Here, two counters for storing the number of retention errors and the number of insertion errors described in FIG. 4 are provided for each pallet.

FIG. 4 shows a case where any one of the number of occurrences of a component holding error in the component holding pallet 25 and the number of occurrences of an insertion error in the clinch unit 60 of the electronic component 1 conveyed on the pallet exceeds a set number. 12 is a flowchart of a control sequence for not using the pallet. The flowchart of FIG. 4 focuses on one pallet, and each pallet sequentially controls the mounting operation according to this flow.

Step a. Is a determination of the usable state of the pallet. If the pallet cannot be used, the pallet is not used without taking in electronic components.

Step b. Is a process of taking the electronic component 1 set in the component supply unit 10 into the pallet when the pallet is usable. FIG. 5 shows this process, and shows that the electronic component 1 is held on the pallet 25 of the pallet number No. 1.

Step c. Is the process of confirming the holding of the electronic components loaded into the pallet. If it is determined that the electronic component has been held incorrectly, the number of consecutive occurrences of the holding error of the pallet holding the electronic component (counter in memory) is counted and set in advance. If the number of times that the defective pallet has been judged is exceeded (setting on the memory), the pallet is set to the unusable state and registered so as not to be used, and the pallet number is displayed on the display. If it is determined that the electronic component is normal, the number of occurrences of holding errors of the pallet holding the electronic component is cleared (returned to 0).

Step d. Is a process of transferring the electronic components taken into the pallet to the insertion head section and inserting them into the printed circuit board. FIG. 6 shows this process. The electronic components taken in the pallet are conveyed by the circulating component conveying section 20 while the electronic components are taken in the pallets after the pallet number No. 1 and the electronic components of the pallet number No. 1 Is transferred to the insertion head unit 40 to insert the electronic component into the printed circuit board.

Step e. Checks the status of the electronic components inserted into the printed circuit board, and if it is determined that the insertion is incorrect,
The number of consecutive insertion errors (counter in the memory) of the pallet that conveys the part is counted, and if the number exceeds the preset number of times determined as a defective pallet, the pallet is regarded as unusable. Register not to use the pallet and display the pallet number on the display. If it is determined that the component is normal, the number of times of erroneous insertion of the pallet carrying the component is cleared.

Step f. Is a determination of the end of the production, and when the production is terminated, the processing is terminated without taking in the parts.
If it is determined that production is in progress, step a. Return to step c. Or step d. Are not used for pallets with pallet numbers registered as unusable in.

For example, in the state of FIG.
The electronic component 1 conveyed in step 2 has an insertion error. In FIG. 7, the next electronic component is loaded into pallet number No. 1, and in FIG.
Electronic parts taken in each pallet are circulated parts transporter 2
0, the electronic component of pallet number No. 1 is delivered to the insertion head unit 40, the electronic component is inserted into the printed circuit board, and the pallet number No. 1 is incorrectly inserted twice consecutively by the insertion error detector. In this state, if the preset number of defective pallet determinations is 1, pallet number No. 1 is automatically registered as an unusable pallet, and pallet number No. 1 is used as an unusable pallet as shown in FIG. Not to use pallet number No.1 without importing

FIG. 10 shows an example of an operation screen of the display 91 shown in FIG. 3, in which the state of a defective pallet is displayed.
Here, the defect determination value = 10 (it is determined to be defective if it exceeds 9), indicating that pallets No. 2, 4, and 5 are defective and cannot be used.

According to this embodiment, the following effects can be obtained.

(1) In a circulating-movement type electronic component insertion apparatus having lead wires, the electronic component 1 is transported from the component supply unit 10 to the insertion head unit 40 by the plurality of component holding pallets 25 and the electronic component is inserted. By controlling the determination of the failure of the holding pallet 25 on the software, it is possible to automatically detect the failure of the pallet at an early stage, absorb the difference of the determination by the operator, and reduce the insertion rate and the operation rate due to the pallet failure. It is possible to prevent the deterioration beforehand.

(2) Conventionally, since the cam, chain gear, belt, and the like are driven and controlled by the same motor as that of the circulating component conveying section 20 and the like, the insertion head section 40 is difficult to perform skip control of a defective pallet. Met. In the present embodiment, as shown in FIG. 2, the component supply unit 10, the component transport unit 20, and the insertion head unit 40 are connected to the motor MB, the motor MP, the motor MZ.
By driving at 1, the control of each motor can be switched between synchronous driving and independent driving, and since such motor control is realized, skip control of a defective pallet can be realized.

FIG. 11 shows that either the component holding error rate of the component holding pallet 25 or the insertion error rate of the electronic component 1 conveyed on the pallet at the clinch unit 60 exceeds the set error rate. 10 is a flowchart of a control sequence for preventing the pallet from being used in the case. The operation of FIG. 11 is the same as the flowchart of FIG. 4 except that the determination is made based on the miss occurrence rate instead of the number of miss occurrences in FIG.

FIG. 12 is a formula for determining a defective pallet when the criterion for determining a defective pallet is an error rate.

In FIG. 3, counters respectively corresponding to pallet numbers are provided in the memory M as software. However, it is a matter of course that the present invention can be realized by a configuration using hardware counters.

Although the embodiments of the present invention have been described above, it is obvious to those skilled in the art that the present invention is not limited to the embodiments and various modifications and changes can be made within the scope of the claims. There will be.

[0057]

As described above, according to the present invention,
In the case where an electronic component is received from a component supply unit and transported to an insertion head unit by using a circulating component transport unit having a plurality of component holding pallets, and the electronic component is inserted into a board hole by the insertion head unit, the electronic component The number of occurrences of errors is counted for each component holding pallet for transporting, and when the number of errors exceeds a predetermined value, or when the error rate calculated from the number of errors exceeds a predetermined value, Since the component holding pallet is determined to be a defective pallet, and thereafter electronic components are not supplied to the defective pallet, it is possible to automatically detect a defective pallet at an early stage and absorb differences in judgments by workers, It is possible to prevent a decrease in the insertion rate and the operation rate due to the pallet failure.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a mechanism part in an embodiment of the present invention.

FIG. 2 is a block diagram showing a motor control system of each mechanism in the embodiment.

FIG. 3 is a block diagram illustrating a control system for managing the number of occurrences of errors with respect to a component holding pallet.

FIG. 4 is a flowchart for explaining an operation of determining a defective pallet based on the number of times an error has occurred.

FIG. 5 is a conceptual diagram for explaining operation showing a state in which electronic components are supplied to pallet No. 1;

FIG. 6 is a conceptual diagram illustrating an operation in which an insertion error is detected when an electronic component conveyed by pallet No. 1 is inserted into a printed circuit board hole by an insertion head unit.

FIG. 7 is a conceptual diagram for explaining an operation showing a state in which the next electronic component is supplied to pallet No. 1;

FIG. 8 is a conceptual diagram for explaining an operation showing a state in which an insertion error is detected again when the next electronic component conveyed by pallet No. 1 is inserted into the printed circuit board hole by the insertion head unit.

FIG. 9 is a conceptual diagram for explaining operation showing a state in which pallet No. 1 is determined as a defective pallet and pallet No. 1 is skipped.

FIG. 10 is an explanatory diagram showing an example of an operation screen of the display device.

FIG. 11 is a flowchart for explaining an operation of determining a defective pallet based on a mistake occurrence rate.

FIG. 12 is an explanatory diagram showing a defective pallet determination formula when a defective pallet is determined based on the number of occurrences of a mistake.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 electronic component with lead wire 2 tape 10 component supply section 11 tape feeder 12 mounting table 13 component supply section drive shaft 14 tape feeder drive cam 15 tape feeder drive lever 20 circulating component transport section 21, 22, 23 sprocket 24 chain 25 pallet 26, 27 Idler roller 28 Timing pulley 29 Circulation-type component conveyance unit drive shaft 31 Component detection unit 32 Delivery position 33 Discharge unit 40 Insertion head unit 41 Delivery chuck 42 Insertion head 43 Push rod 44 Insertion guide 45 Insertion head unit drive shaft 46, 64 cam 47, 65 lever 48 insertion head direction turning pulley 50 printed circuit board 60 clinch unit 61 clinch head 62 movable blade 63 clinch unit drive shaft 66 clinch shaft 67 direction turning pulley 70 insertion mistake Can 80 drive control unit CPU central processing unit M memory

Continuation of the front page (72) Inventor Hiroshi Uemura 1-13-1 Nihonbashi, Chuo-ku, Tokyo TDC Corporation F-term (reference) 5E313 AA06 AA11 AA16 CC04 CE04 CE06 CE11 DD02 DD03 DD07 DD12 DD31 DD50 EE02 EE03 EE06 EE23 EE50

Claims (2)

[Claims] An electronic component is received from a component supply unit and transported to an insertion head unit using a circulating component transport unit having a plurality of component holding pallets, and the electronic component is inserted into a board hole by the insertion head unit. In the electronic component insertion method, the number of occurrences of errors is counted for each component holding pallet for transporting electronic components, and when the number of occurrences of errors exceeds a predetermined value,
Alternatively, when the error rate calculated from the error occurrence count exceeds a predetermined value, the component holding pallet is determined to be a defective pallet, and thereafter, electronic components are not supplied to the defective pallet. . 2. An electronic component insertion device comprising: a component supply unit for supplying an electronic component; a circulating component transport unit having a plurality of component holding pallets; and an insertion head unit for inserting an electronic component into a board hole. At least one of a holding error detecting unit that detects an electronic component holding error of a component holding pallet that receives an electronic component from a component supply unit and conveys the electronic component to the insertion head unit, and an insertion error detecting unit that detects an electronic component insertion error in a board hole. A component that counts the number of miss detections of at least one of the holding error detection unit and the insertion error detection unit, and the number of error detections or the error detection rate calculated from the number of error detections exceeds a predetermined value. Control means for judging the holding pallet as a defective pallet so as not to supply an electronic component. .