Abstract: The invention prevents reduction of a pickup rate even when a storage tape in use and a new storage tape are connected to each other with a connection tape. A component recognition camera takes an image of an electronic component held by a suction nozzle, and a recognition processing device performs recognition processing. When a positional shifting amount calculated by CPU based on the recognition processing result is more than ?, a board recognition camera takes an image of a storage portion of a storage tape storing a next electronic component to be picked up. When a positional shifting amount of the storage portion calculated based on the recognition processing result is more than ?, the CPU enables seam passage processing. Based on the image taking of the storage portion by the board recognition camera and the recognition processing by the recognition processing device which are performed each time the storage tape is fed N times, the CPU controls correction of a pickup position.

Abstract: The invention is directed to reduction of torque by reduction of an outside diameter of a mounting head. A cylindrical cam rotation motor is provided under a nozzle rotation motor. A first rotation axis member as a rotor of the nozzle rotation motor is provided along an axis line of a nozzle holder and penetrates into the nozzle rotation motor and the cylindrical cam rotation motor. A second rotation axis member as a rotor of the cylindrical cam rotation motor is provided along an axis line of a cylindrical cam member and penetrates into the cylindrical cam rotation motor. A suction nozzle to be used protrudes from a lower end surface of the nozzle holder at a protrusion position.

Abstract: This invention provides a board positioning method where a stopper and so on are not required when positioning a printed board in an X direction. Servo motors of a board supplying conveyer portion and a board positioning portion are driven to start carrying of a board. When a first board detection sensor detects the board before timeout of a first timer which starts timekeeping together with the carrying of the board, second and third timers start timekeeping. The servo motor starts decelerating, decelerates to an arbitrary speed, and keeps a constant speed after timeout of the second timer. When a second board detection sensor detects the board before timeout of the third timer, the servo motor is controlled to decelerate and stop the board at an arbitrary position, and a board recognition camera takes an image of a positioning mark of the board stopping at the board positioning portion to recognize a position of the printed board.

Abstract: The invention prevents mismounting of an electronic component caused by missetting of a component feeding unit in an apparatus. A recognition process of an electronic component is performed according to component library data stored in a RAM. According to “normal” data as a check condition in the component library data, a recognition processing device checks whether leads indicated by group numbers “1” and “2” exist or not in the electronic component, on command of a CPU. When all the leads are detected, the CPU commands the recognition processing device to calculate an amount of shifting from a proper position based on an image taken by a component recognition camera, and a position and an angle of the electronic component are calculated. Next, the recognition processing device performs an absence check of leads which must not exist in the electronic component.

Abstract: The invention is directed to performing of an effective checking and aligning operation of component pick-up positions at component feeding units used for manufacturing by performing the operation sequentially at a time. A board recognition camera takes an image of a feeding position of a component feeding unit and the image is displayed being superimposed over a graphic image of a suction nozzle on a CRT. When an operator operates a trackball to move a cursor to an “execute visual alignment” menu and clicks a left button there, the stored image (memory image) becomes movable freely in any direction according to a trackball operation. The stored image (memory image) is moved to match a cross line and an outline of a graphic suction nozzle (component pick-up position) for visual alignment with a component feeding position. Then, the operator clicks both right and left buttons of the trackball to store an alignment value of the position in a RAM.

Abstract: The invention is directed to an unfailing pickup operation of an electronic component from a component storage portion at a seam of storage tapes connected even using a connection tape and prevention of reduction in a pickup rate of an electronic component. A CPU sends a feeding command to a component feeding unit to perform a component feeding operation or the like. Then, when the CPU judges that a connection tape reaches a pickup position, the CPU drives an X axis drive motor and a Y axis drive motor to move a board recognition camera to the pickup position of the feeding unit, the camera takes an image of a storage portion of a storage tape, and a recognition processing device performs recognition processing. A correction value based on a result of this recognition processing is stored in a RAM, and a suction nozzle is moved taking this correction value into account and lowers to pick up an electronic component.

Abstract: This invention provides a low-cost electronic component feeding device which stabilizes a pickup position of an electronic component and does not require a highly accurate sprocket. A component feeding unit is fixed to an adjusting jig, a recognition camera moves to a component pickup position and takes an image of each of feeding teeth formed around a sprocket, and a recognition processing portion performs recognition processing and calculates a position of each of the feeding teeth. In this case, for each of the numbers corresponding to the feeding teeth checked through a checking window, positional data of each of the feeding teeth which are a recognition processing result of the recognition processing portion are stored in a memory by using an input device. After such an adjusting operation of the component feeding units is completed, the component feeding units each mounted with a storage tape are fixed to the electronic component mounting apparatus.

Abstract: In a component feeding apparatus, forwarding pitches of the storage tape are reduced without using an alternative forwarding gear corresponding to the reduced pitches. The component feeding apparatus feeds chip components by intermittently forwarding the storage tape having the chip components by predetermined pitches. Thy apparatus has a sprocket for intermittently forwarding the storage tape, a forwarding gear supported by the same axis as that of the sprocket and rotating together with the sprocket, a forwarding lever turnably supported, and first and second forwarding pawls both attached to the forwarding lever. Every time the forwarding lever turns in a predetermined direction, the first forwarding pawl and the second forwarding pawl engage with the forwarding gear alternately to rotate the forwarding gear by half a tooth pitch.

Abstract: The invention provides an electronic component mounting apparatus in which a mounting time per electronic component can be reduced by starting a vertical movement motor and so on as early as possible. When a CPU judges that an interlock canceling condition where the movement of a suction nozzle in X and Y directions is to be completed is satisfied and judges that an interlock canceling condition where an electronic component is to be fed on an electronic component feeding unit is satisfied, the CPU outputs a signal indicating the satisfaction of the canceling conditions to a second motor controller. A CPU of the second motor controller that receives the signal indicating the satisfaction of the interlock canceling conditions about the movement of the suction nozzle in the X and Y directions and the feeding of the electronic component on the electronic component feeding unit immediately outputs a start signal to a nozzle vertical movement motor.

Abstract: This invention is directed to prevention of reduction of a pickup rate of an electronic component when a component feeding unit is dismounted from a feeder base and mounted back thereon. A CPU sends a feeding command to a component feeding unit feeding an electronic component belonging to a first step number, and drives a servomotor and a drive motor of the feeding unit to perform a component feeding operation and so on. After then, when the CPU judges that the feeding unit is dismounted from the feeder base and mounted back thereon, the CPU drives a X axis drive motor and a Y axis drive motor to move a board recognition camera to the pickup position of the feeding unit, the camera takes an image of a storage portion of a storage tape, and a recognition processing device performs recognition processing to the image.

Abstract: An electronic component mounting apparatus is configured to adjust a positional relationship between two axes when an error occurs in the positional relationship between the axes when a beam is moved by two drive sources. According to movement of the beam for component picking and mounting operations, linear scale signals from linear scale reading heads are inputted to a Y2 driver and a Y1 driver, respectively. Each of the Y2 driver and the Y1 driver calculates a difference between positions of the drive axes of the beam and controls a moving member of a linear motor based on the difference so as to increase thrust of one drive axis when the one drive axis is in a more backward position than another drive axis and to reduce the thrust of one drive axis when the one drive axis in a more forward position than another drive axis.

Abstract: The invention is directed to prevention of interference of an operation of mounting proper electronic components and improvement of usability without reduction of a manufacturing speed of printed boards. Suction states of electronic components held by suction by suction nozzles are detected by a line sensor unit. When the detection result shows that there is an improper electronic component, the improper electronic component is disposed of, and after the disposal a component recognition camera takes images of electronic components judged proper as a result of the detection and a recognition processing device performs a recognition process. When the recognition result shows that there is an improper electronic component, the improper electronic component is disposed of, and after the disposal only electronic components judged proper as a result of the recognition are mounted on a printed board.

Abstract: This invention is directed to prevention of setting a component feeding unit set with other storage member than a storage member storing same type of components as components in shortage in an electronic component mounting apparatus. A component mounting apparatus sends notice information about component shortage to a control computer when a number of electronic components in a storage member reduces and reaches a level for sending the notice information of component shortage during mounting operations. The control computer stores the notice information, and sends the notice information to a monitor computer to display this information on a monitor. A new storage member having the corresponding components is set in the component feeding unit based on the displayed notice information, and an operator inputs information A about which component feeding unit is set with the storage member and which components are stored in the storage member set in the component feeding unit.

Abstract: The invention is directed to reduction of torque by reduction of an outside diameter of a mounting head. A cylindrical cam rotation motor is provided under a nozzle rotation motor. A first rotation axis member as a rotor of the nozzle rotation motor is provided along an axis line of a nozzle holder and penetrates into the nozzle rotation motor and the cylindrical cam rotation motor. A second rotation axis member as a rotor of the cylindrical cam rotation motor is provided along an axis line of a cylindrical cam member and penetrates into the cylindrical cam rotation motor. A suction nozzle to be used protrudes from a lower end surface of the nozzle holder at a protrusion position.

Abstract: The invention provides an electronic component mounting method which improves a work efficiency and enables pickup of electronic components without fail. A component feeding unit mounted with a master tape formed with pickup position indication holes is fixed to an adjusting jig. A recognition camera takes an image of a recognition mark to calculate a center position thereof, moves to a position corresponding to a component pickup position previously stored in a memory portion, and takes an image of the pickup position indication hole provided in the master tape to calculate a component pickup position. Data on a positional relationship between the recognition mark and the pickup position based on a result of this recognition processing are stored in a memory in the component feeding unit. The component feeding units each mounted with a storage tape are fixed to a base of an electronic component mounting apparatus.

Abstract: The invention is directed to performing electronic component mounting operations by the suction nozzles of the mounting heads in each of the plurality of the rotary tables independently, moving each of the positioning tables for positioning a printed board in a component mounting position independently, and performing the electronic component mounting operation on the plurality of the printed boards independently. A component feeding device moves a plurality of component feeding tables having a plurality of component feeding units in an arraying direction thereof respectively and independently. Mounting heads having a plurality of suction nozzles for picking up electronic components from the component feeding devices respectively are provided at predetermined intervals corresponding to intermittent pitches on an outer circumference of two rotary tables intermittently rotating.

Abstract: Recognition of a position of a printed board is performed both before and after a chip component is mounted on the printed board. When a difference between the positions recognized before and after that is out of a predetermined allowable range, the printed board is treated as a defective. A CPU compares positions of a positioning mark provided on a printed board recognized both before and after a chip component is mounted on the printed board, the positions being taken an image by a board recognition camera and recognized by a recognition processing device. The CPU checks whether or not a difference between the positions is within a predetermined range stored in a RAM, that is, within a range from ?0.100 mm to +0.0100 mm, in both X and Y directions. When judging that the difference is within the range, the CPU controls an electronic component mounting apparatus to stop because of an error.

Abstract: The invention prevents mismounting of an electronic component caused by missetting of a component feeding unit in an apparatus. A recognition process of an electronic component is performed according to component library data stored in a RAM. According to “normal” data as a check condition in the component library data, a recognition processing device checks whether leads indicated by group numbers “1” and “2” exist or not in the electronic component, on command of a CPU. When all the leads are detected, the CPU commands the recognition processing device to calculate an amount of shifting from a proper position based on an image taken by a component recognition camera, and a position and an angle of the electronic component are calculated. Next, the recognition processing device performs an absence check of leads which must not exist in the electronic component.

Abstract: The invention is directed to increased stabilization of a pickup operation by reducing a reaction against disturbance by reducing a feedback value when a pickup rate is improved. A positional shifting amount of an electronic component on a suction nozzle before the electronic component is mounted on a printed board is stored in a RAM each time the component is picked up at a component feeding unit until a pickup count number reaches a predetermined pickup number, and a CPU calculates an average of the positional shifting amounts. When the pickup count number reaches the predetermined pickup number, the CPU obtains a temporary coefficient by adding an initial value to a value obtained by multiplying a negative coefficient by the pickup count number, and calculates a feedback value by multiplying the temporary coefficient by the average.

Abstract: The invention provides a component feeding device where heat generation of a drive circuit is minimized and a printed board mounted with this drive circuit is miniaturized by forming an inexpensive structure using a single microcomputer and by energizing each of the servomotors only when necessary. In a component feeding unit of a dual lane type, a CPU in a microcomputer controls a start of driving of one of servomotors by energizing the servomotor through a drive circuit based on a component feeding signal for one lane outputted from a CPU of an electronic component mounting apparatus, and the CPU in the microcomputer controls one of the servomotors so that the servomotor is not energized when a component feeding signal for another lane is inputted before a predetermine time passes after a delay timer starts timekeeping when receiving a detection signal about rotation of the servomotor by a predetermined amount from an encoder detecting a rotation amount of the servomotor.