JP2003158397A - Electronic parts mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic parts mounting device capable of sharply shortening a tact time. SOLUTION: When a driving cylinder 64 is driven, and a rod 72 stretches; a transmission plate 73 moves while swinging, and a feeding lever 84 swings, and a feeding safety lug 83 crosses over the teeth of a ratchet 82. On the contrary, when the rod 72 contracts, and the transmission plate 73 moves, the feeding lever 84 swings, and the feeding safety lug 83 makes the ratchet 82 intermittently rotate to a clockwise direction, a sprocket 81 also intermittently rotates, and a carrier tape C is intermittently fed. Also, when the transmission plate 73 contracts, and a feeding lever 94 swings through a coupling arm 95, a cover tape reel 68 intermittently rotates to a winding direction according to the interaction of a feeding stopper and a one-way clutch 93, and a cover tape Ca is peeled with the edge face of the opening as a peeling supporting point, and wound around the reel 68. This feeding operation is repeated again so that two electronic parts can be supplied to a parts extracting position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply device in which a cover tape is peeled off from a carrier tape for housing electronic components using a suppressor as a peeling fulcrum and the electronic components are sequentially fed to a component taking-out position. A plurality of electronic components supplied from the component supply device are fixed in parallel, and a mounting head having a plurality of suction nozzles is moved in the plane direction to suck and take out the electronic components by a suction nozzle and mount them on a printed circuit board. The present invention relates to an electronic component mounting device.

[0002]

2. Description of the Related Art Heretofore, an electronic component supply device for this type of electronic component mounting device has been disclosed in Japanese Patent Laid-Open No. 5-335785. This electronic component supplying device is for mounting an electronic component one by one on a carrier tape mounted on a body of an electronic component mounting device, and a tape feeding mechanism for intermittently feeding the carrier tape to feed the electronic component to a component taking-out position. A cover tape peeling mechanism for peeling the cover tape of the carrier tape prior to this feeding, and a shutter mechanism for opening the upper side of the electronic component fed to the component taking-out position to allow the electronic component to be picked up by suction. ing. Then, these mechanisms operate by interlocking with each other by inputting power from the mounting apparatus main body.

[0003]

However, in such a conventional electronic component supply device, even if the electronic device is structured such that a plurality of electronic components can be adsorbed and taken out simultaneously or continuously on the mounting device main body side, Since the side can supply only one electronic component at a time, there is a problem that the tact time becomes long as a whole.

Therefore, it is an object of the present invention to provide an electronic component mounting apparatus capable of shortening the tact time as much as possible.

[0005]

For this reason, the first invention is
A plurality of component supply devices that sequentially remove the cover tape from the carrier tape that houses the electronic components using the suppressor as a separation fulcrum to sequentially supply the electronic components to the component extraction positions are fixed in parallel to the device main body, and the component supply device concerned. In the electronic component mounting device for mounting the electronic component supplied from the device on the printed circuit board by suctioning and picking up the electronic component by moving the mounting head having the plurality of suction nozzles in the plane direction, Each of the component supply devices fixed in parallel is capable of supplying a plurality of electronic components in parallel to the component take-out position, and the plurality of electronic components supplied by the component supply device are moved in the plane direction. It is characterized in that the plurality of suction nozzles of the mounting head respectively suction and take out and mount on the printed circuit board.

A second aspect of the invention is to provide a plurality of component supply devices in a main body of the apparatus, wherein the cover tape is peeled off from the carrier tape for housing the electronic components using the suppressor as a peeling fulcrum to sequentially feed the electronic components to the component taking-out positions. An electronic device which is mounted side by side and fixed, and electronic components supplied from the component supply device are suctioned and taken out by an arbitrary suction nozzle by moving a mounting head having a plurality of suction nozzles in a plane direction. In the component mounting device, the component supply device can supply a plurality of electronic components to a component extraction position, and the plurality of electronic components supplied by the component supply device are moved in a plane direction to a plurality of suction heads. During the mounting operation on the printed circuit board by picking up each of the suction nozzles, the plurality of suction nozzles of the mounting head are used. Wherein a plurality of electronic components to be adsorbed extraction component supply device and supplying the component pickup position.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of an electronic component mounting apparatus 1 on which a base (apparatus body) 2 of the apparatus 1 is mounted. A plurality of component supply units 3 for respectively supplying various electronic components to the component extraction positions (component suction positions) are detachably mounted and fixed in parallel.

A supply conveyor 4, a positioning unit 5 and a discharge conveyor 6 are provided on the base 2 between the groups of the component supply units 3 facing each other. The supply conveyor 4 receives the printed circuit board P received from the upstream side device from the positioning unit 5
After the electronic components are mounted on the substrate P positioned by the positioning unit 5 by a positioning mechanism (not shown), the electronic components are transferred to the discharge conveyor 6 and then transferred to the downstream device.

Then, the movable chute 5D is adjusted to the size of the printed circuit board P by a drive motor (not shown) along both guides 5C provided between the fixed chute 5A and the fixed member 5B of the positioning portion 5. To move in the Y direction. As shown in FIG. 2, the fixed chute 5A and the movable chute 5D of the positioning unit 5 are arranged as shown in FIG.
The printed circuit board P can be transported by providing the drive belt 9 stretched by the drive roller 9 and a plurality of rollers 10 which are rotated by the drive motor 5F via the drive circuit 5E shown in FIG.

The fixed chute 4 of the supply conveyor 4
A movable chute 4D can be moved in the Y direction according to the size of the printed circuit board P by a drive motor (not shown) along a guide 4C provided between the A and the fixing member 4B. Then, as shown in FIG. 2, the fixed chute 4A and the movable chute 4D of the supply conveyor 4 are driven by the drive motor 4F via the drive circuit 4E shown in FIG. A conveyor belt 17 stretched around is provided, and the printed circuit board P can be conveyed.

A movable chute 6D is adjusted to a size of the printed circuit board P by a drive motor (not shown) along a guide 6C provided between the fixed chute 6A and the fixed member 6B of the discharge conveyor 6. It can be moved in the Y direction. Then, as shown in FIG. 2, the fixed chute 6A and the movable chute 6D of the discharge conveyor 6, as shown in FIG.
The printed circuit board P can be transported by providing the drive belt 21 stretched by the drive roller 21 and a plurality of rollers 22 rotated by the drive motor 6F via the drive circuit 6E shown in FIG.

Reference numerals 30A and 30B are a pair of beams long in the X direction. The Y-axis motor 50 is driven by a drive circuit 46 to rotate a screw shaft, and the beams are fixed to the positioning portion 5 along a pair of left and right guides 31. The printed circuit board P and the component supply unit 3 are individually moved in the Y direction above the component pickup position (component suction position).

Each beam 30A, 30B is provided with an X-axis motor 49 via a drive circuit 45 in its longitudinal direction, that is, in the X direction.
The mounting heads 32A, 32 that move along the guide by
B is provided for each. Each mounting head 32A or 32
In B, vertical shaft motors 52 for vertically moving each of the four suction nozzles 33 are mounted, and θ-axis motors 51 for rotating around the vertical axis are also mounted. Therefore, the suction nozzles 33 of the two mounting heads 32A and 32B are movable in the X direction and the Y direction, rotatable about the vertical line, and vertically movable.

Reference numeral 34 denotes a component recognition camera for recognizing the position of a component. Two component recognition cameras are provided corresponding to the respective mounting heads 32A and 32B, and the position of the sucked and held electronic component is displaced with respect to the suction nozzle 33. An electronic component is imaged for recognizing the position depending on whether it is sucked and held or the XY direction and the rotation angle.

Reference numerals 35 and 35 denote nozzle stockers for accommodating various suction nozzles 33, which are stored for replacement of the suction nozzles 33.

The cables and air tubes for the mounting heads 32A and 32B are arranged in parallel and fixed with an adhesive to form a flat plate, and the flat cable 3
6 and 36 are formed, one end of which is connected to each of the motors and the like, and the other end is connected to a control circuit board (not shown) and an air supply source (not shown).

As shown in FIG. 4, the component supply unit 3
Is a device frame 61 and a carrier tape reel (supply reel) 59 rotatably mounted on the device frame 61.
And a tape feeding mechanism 62 for intermittently feeding the carrier tape C fed from the carrier tape reel 59 to the component taking-out position of the electronic component A (the position where a maximum of four electronic components can be taken out), and before the component taking-out position. Carrier tape C
The cover tape winding mechanism 63 for peeling off the cover tape Ca and winding the cover tape Ca, and the drive cylinder 64 serving as a drive source of the tape feeding mechanism 62 and the cover tape winding mechanism 63.

Carrier tape C carrying electronic component A
Is provided in a state that it is wound around a carrier tape reel,
The carrier tape C fed from the carrier tape reel is fed to the component taking-out position so as to go under the suppressor 65 arranged in the tape path before the component taking-out position. The suppressor 65 is notched with an opening 66 that forms a component take-out position, and the cover tape Ca is peeled off using the end face 67 of the opening 66 as a peeling fulcrum, and a cover tape reel of a cover tape take-up mechanism 63 described later. It is wound up by 68.

The drive cylinder 64 has a tail end portion of the cylinder body 71, and a support shaft 69 as a fulcrum.
1 is swingably supported, and a tape feeding mechanism 62 and a cover tape winding mechanism 6 are provided at the tip of a rod 72 thereof.
A transmission plate 73 for transmitting power to the motor 3 is fixed. The transmission plate 73 moves forward and backward while swinging as the rod 72 moves forward and backward, and the backward movement (pulling operation) causes the tape feeding mechanism 62 to feed the carrier tape C and the cover tape winding mechanism 63 to wind the cover tape Ca. Is done.

The tape feeding mechanism 62 is a carrier tape C.
Sprocket 81 that meshes with and feeds the feed hole Cb (see FIG. 8) formed in, the pawl wheel 82 that is fixed so as to overlap the sprocket 81 and is coaxially disposed, and the pawl wheel 82 that meshes with the pawl wheel 82. Feed claw 8 for rotating the wheel 82 intermittently
3 and a feed lever 84 rotatably supporting the feed pawl 83 via a support shaft 86 and swingably provided coaxially with the pawl wheel 82. The transmission plate 73 is rotatably connected to the end of the feed lever 84 via a support shaft 85, and the feed lever 84 swings as the transmission plate 73 advances and retracts due to extension of the rod 72. Then
The feed pawl 83 passes over the teeth of the ratchet wheel 82, and conversely, the feed lever 8 moves as the transmission plate 73 moves due to the contraction of the rod 72.
4 swings, and the feed claw 83 intermittently rotates the ratchet wheel 82 clockwise in FIG. When the ratchet wheel 82 rotates intermittently, the sprocket 81 also rotates intermittently, and the feed hole Cb
The carrier tape C is intermittently fed via.

The cover tape winding mechanism 63 includes a cover tape reel 68 rotatably attached to the apparatus frame 61, a one-way clutch 93 incorporated in a shaft portion 92 of the cover tape reel 68, and the one-way clutch 93. It has a feed lever 94 for intermittently rotating the cover tape reel 68 in one direction, and a connecting arm 95 for connecting the feed lever 94 and the transmission plate 73. The connecting arm 95 has one end fixed to the transmission plate 73, extends rearward in parallel with the drive cylinder 64, and is rotatably attached to the feed lever 94 via the support shaft 96. When the feed lever 94 swings through the connecting arm 95 as the transmission plate 73 advances and retracts, the cover tape reel 68 moves in one direction (winding direction) due to the interaction between the feed stopper (not shown) and the one-way clutch 93. Rotates intermittently. As a result, the cover tape Ca separated from the carrier tape C is wound around the cover tape reel 68 without slack.

Next, in FIG. 3, reference numeral 40 denotes a CPU (mounting control section) as a control section for integrally controlling the main mounting apparatus 1.
A RAM (random access memory) 42 and a ROM (read only memory) 43 are connected to the CPU 40 via a bus line. And CPU
A reference numeral 40 centrally controls the operation relating to the component mounting operation of the electronic component mounting apparatus 1 based on the data stored in the RAM 42 and according to the program stored in the ROM 43.

That is, the CPU 40 uses the interface 4
4 and the drive circuits 4E, 5E and 6E to drive the drive motors 4F, 5F and 6F, and the interface 4
4 and the drive circuits 45, 46, 47 and 48, and the X
The drive of the axis motor 49, the Y-axis motor 50, the θ-axis motor 51, and the vertical axis motor 52 is controlled, and the drive cylinder 64 of the component supply unit 3 is controlled via the drive circuit 56.

In the RAM 42, as shown in FIG.
Mounting data relating to component mounting is stored, and the X direction (indicated by X), the Y direction (indicated by Y), and the angle (indicated by Z) in the printed circuit board are stored for each mounting order (for each step number). Information, arrangement number information of each component supply unit 3 indicated by FDR, and the like are stored. The RAM 42 also stores component placement data, which stores the type (component ID) of each electronic component corresponding to the placement number of each component supply unit 3. Further, the RAM 42
The component library data representing the characteristics of each electronic component is stored in the.

Reference numeral 53 is a recognition processing unit connected to the CPU 40 via an interface 44, and the recognition processing of the image captured by the component recognition camera 34 and taken in is based on the component library data. And the processing result is sent to the CPU 40. That is, C
The PU 40 outputs an instruction to the recognition processing unit 53 to perform recognition processing (calculation of the amount of displacement, etc.) on the image captured by the recognition camera 34, and at the same time, the recognition processing unit 5 outputs the recognition processing result.
It is received from 3.

Reference numeral 54 denotes a touch panel, which is mounted on the screen of the CRT 55 via a mounting tool (not shown). The touch panel 54 has a transparent conductive film coated on the entire surface of the glass substrate, and electrodes are printed on the four sides. Therefore, when an extremely small current is applied to the surface of the touch panel 54 and the operator touches it, the current changes in the electrodes on the four sides, and the coordinate values touched by the circuit board connected to the electrodes are calculated. Therefore, if the coordinate value coincides with the coordinate value in the coordinate value group stored in advance in the RAM 42 as a switch unit for performing the task, the task is performed.

On the other hand, in this embodiment, each of the mounting heads 32A or 32B has four suction nozzles 3 as described above.
3 is mounted so that a maximum of four electronic components A, A can be adsorbed and taken out continuously. In this case, the CPU
The mounting heads 32A and 32B and the drive cylinder 64 are controlled by 40 to control the electronic component A from the component supply unit 3.
Can be taken out by a maximum of four chain multi-adsorption (see FIGS. 6 and 7).

With the above configuration, the following operation is shown in FIG.
This will be described based on the flowchart shown in First, the printed circuit board P is carried into the positioning section 5 from the upstream device (not shown) via the supply conveyor 4, and the positioning mechanism starts the positioning operation.

Next, the CPU 40 initializes the program counter and sequence data, cuts out the mounting data, and generates suction sequence data. That is, the step data cutout process from the mounting data (step number 00
(01 to 0004 are read), the component feeding operation, the suction procedure, the recognition procedure, and the mounting procedure of the component supply unit 3 are determined from the cut-out step data, the program counter is incremented, and the next beam cycle operation sequence preread is prepared. To do.

Next, the feeding operation of the component supply unit 3 is executed. That is, the first cut-out is step number 0001-
0004, the arrangement number FDR is "104", one is taken out, "106" is two taken out, and "108" is one taken out, and the multi-feed operation process is performed by the three simultaneous parallel processes. Here, since the feeding operation is performed in parallel processing, the feeding operation of the two electronic components A of the unit 3 having the arrangement number FDR of “106” will be described for convenience.

First, when the drive cylinder 64 is driven and the rod 72 thereof extends, the transmission plate 73 swings to the right in FIG. 4, the feed lever 84 swings, and the feed pawl 83 moves. Go over the teeth of the ratchet 82. On the contrary, the feed lever 84 swings with the movement of the transmission plate 73 due to the contraction of the rod 72, and the feed pawl 83 intermittently rotates the ratchet wheel 82 clockwise in FIG. 4, and at this time, the sprocket 81 intermittently rotates. Then, the carrier tape C is intermittently fed through the feeding hole Cb. When the feed lever 94 swings via the connecting arm 95 as the transmission plate 73 moves backward, the feed tape stopper 68 (not shown) interacts with the one-way clutch 93 to cover the tape reel 68.
Rotates intermittently in one direction (winding direction), the cover tape Ca is peeled off with the end surface 67 of the opening 66 as a peeling fulcrum, and the peeled cover tape Ca is wound around the cover tape reel 68 without slack. .

Therefore, one electronic component A is sent to the component take-out position. Further, again the drive cylinder 64
Is driven to extend and contract the rod 72, so that the second electronic component A can be sent to the component taking-out position. In this way, the supply unit 3 having the arrangement number FDR of “104” sends one electronic component A to the component taking-out position, the two supply units 3 of “106” send two, and
You can send one 8 ”supply unit 3
The feed operation is performed by two simultaneous parallel processes.

The beams 30A and 30B rotate the screw shaft by driving the Y-axis motor 50 through the drive circuit 46, move along the guide 31 in the Y direction, and the X-axis motor 49 through the drive circuit 45. If the mounting heads 32A and 32B move in the X direction along the guides, move above the component take-out position of the component supply unit 3, and the feeding operation of the electronic component A of each component supply unit 3 is completed,
The mounting head 3 is driven by driving the vertical axis motor 52.
The suction operation is performed by vertically moving the suction nozzle 33 of 2A or 32B.

At this time, one electronic component A is taken out from the supply unit 3 having the arrangement number FDR of "104",
When all the suction operations are completed by taking out two from the supply unit 3 of "6" and one from the supply unit 3 of "108", the next cycle component supply unit 3
The feeding operation of is carried out in advance. That is, the next step number 0
Cut out 005 to 0008 and arrange number FDR “11
The four feed operation of "0" is performed as described above.

A problem in increasing the feeding speed of the electronic parts is the peeling operation of the cover tape which is carried out in parallel with the feeding operation. If this speed is high, the cover tape may be cut off. Will occur. Therefore, the present invention controls so as to allocate sufficient time for this feeding operation, avoids the above-mentioned adverse effects, and provides a high-speed multifunctional electronic component mounting device, that is, a component supply device in the device main body. High-speed maneuverability of an electronic component mounting device in which a plurality of electronic components supplied from the component supply device are picked up by immobilizing the electronic components supplied by the component supply device by moving the mounting head having a plurality of suction nozzles in the planar direction Is used to realize high-speed suction operation.

In other words, paying attention to the repeated heavy rain wear and sequential mounting, which are the greatest features of the multifunctional electronic component mounting apparatus, the mounting operation is performed after the chain suction is completed at the timing of the component feeding operation. In the meantime, a plurality of electronic components (regardless of the same supply unit 3 or a plurality of supply units 3) adsorbed in the next sequence are collectively sent.

The mounting heads 32A and 32B are moved XY above the component recognition camera 34 to pick up images of the sucked and held electronic components A, respectively. This image is captured by electronic component A
Are captured one by one or collectively. Then, the mounting heads 32A and 32B are moved above the printed circuit board P by X.
The first electronic component A of the electronic components A that has been moved in the Y direction and has undergone multi-chain adsorption based on the recognition result by the recognition processing unit 53.
Execute the mounting operation of. Then, if the arithmetic processing for the mounting operation of the next component is performed and the mounting operations are executed one after another, and all the electronic components A that have been multi-chain sucked are mounted, all the electronic components A specified by the mounting data are printed. When the mounting is completed, the beams 30A and 30B are returned to the origin, the printed circuit board P is transferred from the positioning unit 5 to the discharge conveyor 6, and the printed circuit board P is mounted. The operation related to mounting on P is completed.

According to the present embodiment, the component supply unit 3 for supplying various electronic components to the base (device body) 2 of the electronic component mounting apparatus 1 one by one at the component take-out position.
Since a plurality of releasable parts are detachably arranged side by side and a sufficient time can be taken for taking out, a shutter for preventing the electronic parts from popping out when the cover tape is peeled off is unnecessary.

However, it is also possible to provide the shutter. That is, it is easy to increase the speed of the shutter opening / closing operation when picking up and picking up electronic parts, and the shutters provided at the parts picking position where a plurality of electronic parts have been sent are opened each time they are sent or each time they are taken out. You can do it like this.

Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention can be carried out in various ways without departing from the spirit of the invention. It is intended to cover alternatives, modifications or variations.

[0041]

As described above, according to the present invention, it is possible to provide an electronic component mounting apparatus which can shorten the tact time as much as possible.

[Brief description of drawings]

FIG. 1 is a plan view of an electronic component mounting device.

FIG. 2 is a sectional view taken along line BB in FIG.

FIG. 3 is a control block diagram.

FIG. 4 is a side view of the component supply device.

FIG. 5 is a diagram showing mounting data.

FIG. 6 is a diagram showing a component supply device and a mounting head in which four electronic components have been supplied to a component extraction position.

FIG. 7 is a diagram showing a component supply device and a mounting head in which four electronic components are taken out by the mounting head.

FIG. 8 is a diagram showing a carrier tape.

FIG. 9 is a diagram showing a flowchart.

[Explanation of symbols]

1 Electronic component mounting device 3 parts supply unit 30A, 30B beam 32A, 32B mounting head 33 Suction nozzle 64 drive cylinder 65 suppressor

Continued front page    (72) Inventor Shigeru Kageyama             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. F term (reference) 5E313 AA01 AA11 AA18 DD33 DD34                       EE24 EE25

Claims (2)

[Claims] 1. A plurality of component supply devices arranged in parallel and fixed to an apparatus main body so as to peel off a cover tape from a carrier tape storing electronic components with a suppressor as a peeling fulcrum to sequentially feed electronic components to a component taking-out position. In an electronic component mounting device for mounting an electronic component supplied from the component supply device on a printed circuit board by suctioning and picking it out by an arbitrary suction nozzle by moving a mounting head having a plurality of suction nozzles in a plane direction, While each of the plurality of component supply devices fixed in parallel to the apparatus body is capable of supplying a plurality of electronic components in parallel to respective component extraction positions,
An electronic component mounting device, wherein a plurality of electronic components supplied by the component supply device are sucked and taken out by a plurality of suction nozzles of the mounting head moved in a plane direction and mounted on a printed circuit board. 2. A plurality of component supply devices, which are arranged so as to sequentially supply the electronic components to the component extraction position, by separating the cover tape from the carrier tape for housing the electronic components using the suppressor as a peeling fulcrum and fixing them side by side in the apparatus main body. In an electronic component mounting device for mounting an electronic component supplied from the component supply device on a printed circuit board by suctioning and picking it out by an arbitrary suction nozzle by moving a mounting head having a plurality of suction nozzles in a plane direction, The component supply device is capable of supplying a plurality of electronic components to a component extraction position, and the plurality of electronic components supplied by the component supply device are sucked and picked up by a plurality of suction nozzles of the mounting head moved in a plane direction. While performing the mounting operation on the printed circuit board, it should be picked up by a plurality of suction nozzles of the mounting head. An electronic component mounting apparatus, wherein the component supply device supplies a plurality of electronic components to a component extraction position.