JP3461546B2 - Electronic component mounting device - Google Patents

Description

BACKGROUND OF THE INVENTION [0001] FIELD OF THE INVENTION The present invention relating <br/> the electronic component mounting equipment. 2. Description of the Related Art In recent years, various electronic components have begun to be used with the expansion of the electronic component mounting field, and a nozzle for reflection and transmission has been required as a nozzle for its recognition.
Therefore, there is a demand for means for reducing the number of products and for reducing the switching time of the recognition nozzle in the electronic component mounting apparatus. [0003] A conventional method for mounting an electronic component using a reflection and transmission recognition nozzle will be described below. FIG. 4 shows an electronic component recognition method of a conventional electronic component mounting apparatus. In FIG. 4, 1 is an electronic component mounting device, 2 is an electronic component recognition device, 3 is an electronic component supply device, 4 is a printed circuit board, 5 is an electronic component that can recognize reflection, 6 is an electronic component that can recognize transmission, and 7 is reflection recognition. Nozzle, 8 is a transmission recognition nozzle, 9 is a nozzle standby station, 10 is an empty station, 1
1 is a illuminator for reflection recognition installed above the electronic component recognition device 2, 12 is a blackboard for light absorption installed on the reflection recognition nozzle 7, and 13 is a illuminator for transmission recognition installed on the transmission recognition nozzle 8. , 14 is a horizontal robot, 15 is a horizontal robot 1
4 is a mounting head having a mechanism capable of moving in the horizontal direction, detachably attaching the reflection recognition nozzle 8 and the transmission recognition nozzle 9, supplying a voltage, and having a mechanism capable of vertical movement and horizontal rotation. The recognition and mounting operations of the electronic component mounting apparatus configured as described above will be described. In the electronic component mounting apparatus 1, first, when the electronic component 5 capable of recognizing reflection is supplied by the electronic component supply device 3, the mounting head 15 moves above the electronic component 5 capable of recognizing reflection. The reflection recognizing nozzle 7 set on the mounting head 15 descends, attracts the reflection recognizable electronic component 5, and rises. The mounting head 15 holding the reflection-recognizable electronic component 5 moves to a position above the electronic component recognition device 2.
Here, the reflection recognition illuminator 11 emits light at the voltage supplied from the electronic component mounting device 1 to irradiate the reflection-recognizable electronic component 5 and the blackboard 12, and the electronic component recognition device 2 recognizes the reflected light and mounts it. The attitude of the reflection-recognizable electronic component 5 is corrected by rotating the reflection recognition nozzle 7 with the head 15. The reflection-recognizable electronic component 5 having completed the posture correction is mounted on the mounting head 15.
As a result, the printed circuit board 4 is moved to a position above a predetermined mounting position, and the reflection recognition nozzle 8 is lowered, sucked off, and raised to be mounted. Subsequently, when the electronic component 6 that can be recognized by transmission is supplied by the electronic component supply device 3, the mounting head 15 once moves to the nozzle standby station 9 where the empty station 10 is located. At that position, the mounting head 15
The reflection recognition nozzle 7 is placed in the empty station 10. The transmission recognition nozzle 8 prepared in the nozzle standby station 9 is set to the empty mounting head 15. The mounting head 15 on which the transmission recognition nozzle 8 can be set moves to a position above the transmission-recognizable electronic component 6. And the mounting head 1
5, the transmission recognition nozzle 8 is lowered, and the transmission-recognizable electronic component 6 is sucked and raised. Electronic component 6 capable of transparent recognition
Is moved to a position above the electronic component recognition device 2. Here, the transmission recognition illuminator 13 is caused to emit light at the voltage supplied from the mounting head 15, the transmitted light is recognized by the electronic component recognition device 2, and the transmission recognition nozzle 8 is rotated by the mounting head 15 so that the transmission-recognizable electron is emitted. The posture of the component 6 is corrected. Transparent recognizable electronic component 5 whose posture has been corrected
Is mounted above the predetermined mounting position of the printed circuit board 4 by the mounting head 15, and the transmission recognition nozzle 8 is lowered, sucked off, and raised to mount. The electronic component mounting apparatus performs the above operation by selecting an appropriate recognition nozzle each time the electronic component changes, and repeatedly executes a series of operations of sucking, recognizing, and mounting the electronic component. Here, the necessity of selectively using the reflection recognition nozzle and the transmission recognition nozzle depending on the difference in the conventional recognition method is shown in FIGS.
This will be described with reference to FIG. In FIG. 5, reference numeral 16 denotes an electronic component suction surface, and 17 denotes a reflection recognition illuminator 11 from the electronic component mounting apparatus 1.
In FIG. 6, reference numeral 18 denotes a wiring for supplying power from the mounting head 15 to the transmission recognition illuminator 13. FIG. 5 shows a reflection recognition method. The reflection recognition illuminator 11 is provided between the electronic component recognition device 2 and the electronic component suction surface 16 of the reflection recognition nozzle 7, and the blackboard 12 is mounted on the electronic component suction surface 16 of the reflection recognition nozzle 7.
It is provided above. Here, the role of the blackboard 12 is provided because it is necessary to darken the back of the electronic component in order to clearly distinguish the light reflected by the reflection-recognizable electronic component 5 from the back thereof. The reflection-recognizable electronic component 5 is sucked by the reflection-recognition nozzle 7 mounted on the mounting head 15, and is reflected toward the reflection-recognizable electronic component 5 by the voltage supplied from the electronic component mounting apparatus 1 through the wiring 17. The recognition illuminator 11 emits light,
The light reflected from the reflection-recognizable electronic component 5 and the blackboard 12 is recognized by the electronic component recognition device 2. FIG. 6 shows a transmission recognition method. The transmission recognition illuminator 13 is provided in the transmission recognition nozzle 8 at a position above the electronic component suction surface 16. The transmission-recognizable electronic component 6 is sucked by the transmission recognition nozzle 8 mounted on the mounting head 15, and is directed toward the transmission-recognizable electronic component 6 by a voltage supplied from the mounting head 15 through the wiring 18 for transmission recognition illumination. The device 13 irradiates light and transmits the light transmitted through the transmission-recognizable electronic component 6 to the electronic component recognition device 2.
Recognize in. [0010] However, in the above conventional configuration, when recognizing an electronic component, in addition to an electronic component recognizing device having an illuminator for recognizing the electronic component, a reflection recognizing nozzle is used for reflection recognition. As a blackboard that does not reflect light above the electronic component adsorption surface, transmission recognition requires a dedicated nozzle with a transmission recognition illuminator uniquely above the electronic component adsorption surface as a transmission recognition nozzle, and furthermore, electronic components There has been a problem that the mounting device requires time to replace the dedicated nozzle. SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a recognition nozzle that can serve both as a reflection recognition nozzle and a transmission recognition nozzle, so that an electronic component mounting apparatus can eliminate the time for replacing the dedicated nozzle. It is intended to provide a device. [0012] SUMMARY OF THE INVENTION The electronic component mounting apparatus of the present invention in order to solve the above problems, a nozzle having an electronic component suction surface that allows adsorption of electronic components, the electronic component suction surface A transmission recognition illuminator installed at a higher position, and a colorless and transparent when supplied with a DC voltage and installed at a position between the electronic component suction surface and the transmission recognition illuminator , providing a DC voltage.
A liquid crystal plate that is black when not supplied, and the electronic component
An electronic component recognition device installed below the suction surface,
Position between the electronic component suction surface and the electronic component recognition device
Illuminator for reflection recognition installed in
For reflection recognition, the transmission recognition illuminator is turned off and the liquid crystal panel is black.
An electronic component that emits light from a reflection recognition illuminator without reflecting light in color
The light reflected from the
When transmissive recognition of the product
The board becomes colorless and transparent, allowing the light to pass through and above the electronic components.
Irradiates light from the electronic component recognition device . [0013] by [action] The present invention is configured as described above, when performing reflection recognition toward the electronic component that is adsorbed to the nozzle, Toru
The over-recognition illuminator is turned off and the liquid crystal panel is black and reflects without reflecting light
The recognition illuminator emits light and reflects the light reflected from the electronic components.
To recognize the child component recognition apparatus. Further, when performing transparently recognition, the liquid crystal panel to emit the transmitted recognition illuminator becomes colorless and transparent
The light is allowed to pass and emitted from above the electronic component, and the light is recognized by the electronic component recognition device. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram showing a structure of a nozzle for both reflection and transmission recognition according to an embodiment of the present invention. In FIG. 1, 19 is a nozzle for both reflection and transmission recognition, 20 is installed below the transmission recognition illuminator 13, is transparent and colorless when a DC voltage is supplied, and is black when not supplied, and 21 is transmission recognition illumination. This is a wiring connecting the device 13 and the liquid crystal plate 20 in parallel. The operation of the reflection and transmission recognition nozzle configured as described above will be described below with reference to FIGS. FIG. 2 shows a reflection recognition method. The reflection-recognizable electronic component 5 is supplied from the mounting head 15 on the electronic component suction surface 16 of the reflection / transmission recognition nozzle 19 above the electronic component recognition device 2. It is held by vacuum pressure. No voltage is supplied from the mounting head 15 to the reflection / transmission recognition nozzle 19, the transmission recognition illuminator 13 is turned off, the liquid crystal plate 20 remains black, and does not reflect light. The reflection recognition illuminator 11 is illuminated by the voltage supplied from the electronic component mounting device 1 through the wiring 17, and the light reflected from the reflection recognizable component 5 is recognized by the electronic component recognition device 2. FIG. 3 shows a transmission recognition method.
The transmission-recognizable electronic component 6 is similarly held above the electronic component recognition device 2 by the vacuum pressure supplied from the mounting head 15 on the electronic component suction surface 16 of the nozzle 19 for both reflection and transmission recognition. A voltage is supplied to the reflection / transmission recognition nozzle 19 from the mounting head 15 through the wiring 21, the transmission recognition illuminator 13 emits light, and the liquid crystal plate 21 becomes colorless and transparent. Therefore, the light irradiated from above the transmission-recognizable electronic component 5 is recognized by the electronic component recognition device 2. As described above, according to the present embodiment, between the illuminating means of the conventional transmission recognition nozzle and the suction surface of the electronic component, means for passing light from above and not reflecting light from below is provided. Thus, the transmission recognition nozzle and the reflection recognition nozzle can be shared. As described above, according to the present invention, transmission recognition is performed.
By providing a liquid crystal panel between the illuminator and the suction surface of the electronic components that allows light from above to pass through and does not reflect light from below, the nozzles are compatible with both transmission recognition and reflection recognition. >it's also Ru can be shared by Le. Along with this Te electronic component mounting apparatus smell can reduce the switching time of Roh nozzle,
Productivity can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial cross-sectional side view of a nozzle for both reflection and transmission recognition in one embodiment of the present invention. FIG. 2 is an explanatory diagram for explaining the operation of reflection recognition in the embodiment. 3 is an explanatory view for explaining the operation of transmission recognition in the embodiment. FIG. 4 is a perspective view of a conventional electronic component mounting apparatus with an electronic component recognition function. FIG. 5 is an explanatory view of a conventional reflection recognition nozzle. Description of conventional transmission recognition nozzles [Description of reference numerals] 1 Electronic component mounting device 2 Electronic component recognition device 3 Electronic component supply device 4 Printed circuit board 5 Reflection-recognizable electronic component 6 Transmission-recognizable electronic component 7 Reflection recognition nozzle 8 Transmission recognition Nozzle 9 Nozzle waiting station 10 Empty station 11 Reflection recognition illuminator 12 Blackboard 13 Transmission recognition illuminator 14 Horizontal robot 15 Mounting head 16 Electronic component suction surface 19 Reflection and transmission Recognition / Combined Nozzle 20 Liquid Crystal Board

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H05K 13/04

Claims (1)

(57) Patent Claims 1. A electronic electronic component suction surface that allows adsorption of components
Nozzle having an aperture and transmission recognition installed above the electronic component suction surface
An illuminator , installed at a position between the electronic component suction surface and the transmission recognition illuminator, becomes colorless and transparent when a DC voltage is supplied, and becomes a DC voltage.
A liquid crystal plate that is black when the electronic component is not supplied, and an electronic component installed below the electronic component suction surface.
A recognition device, and a position between the electronic component suction surface and the electronic component recognition device.
And a reflection recognition illuminator installed in the transmission recognition illuminator if reflects recognizing an electronic component is turned off
The liquid crystal panel is black and does not reflect light and emits a reflection recognition illuminator.
Recognize light reflected from electronic components with an electronic component recognition device
When the electronic component is recognized through transmission, the transmission recognition illuminator is emitted.
The liquid crystal panel becomes colorless and transparent, allowing the light emission to pass
Irradiates light from above and recognizes light with the electronic component recognition device.
Child component mounting device.