JP2857673B2 - Component mounting equipment - Google Patents

Description

Description: TECHNICAL FIELD [0001] The present invention relates to a component mounting apparatus.

[Prior art and its problems] Conventionally, a printed circuit board manufacturing line for mounting components such as a chip resistor, a chip capacitor, and an IC chip on a printed circuit board includes, for example, a paste solder printing device and a component mounting device. A printing apparatus prints paste solder on a component mounting location (for example, 30 locations) of a printed circuit board, and then sequentially mounts components on the component mounting location on which the paste solder is printed by a component mounting apparatus. In this case, the component mounting apparatus is provided with one or more (for example, three) mounting heads for mounting components.

When the number of components to be mounted on one printed circuit board is large due to the design specifications of the printed circuit board, another component mounting apparatus is additionally provided. Further, in the case of a design specification in which an adhesive is applied without printing the paste solder, a dispenser device for applying the adhesive has been added to the production line. In this case, a paste solder printing device is not used.

Therefore, in the conventional device, the configuration of the manufacturing line must be changed every time the design specification of the printed circuit board is changed, which is very troublesome and wastes time.

[Object of the Invention] The present invention has been made in view of the above circumstances, and an object of the invention is to provide a compatible component mounting apparatus that can easily change the function of a head unit.

[Summary of the Invention] The present invention relates to a head mounting portion which is movably provided and to which a plurality of head portions can be removably mounted, a first connector which connects and disconnects the head mounting portion and an operation control portion, and
A detachable second connecting the operation control unit and the driving unit.
And a dedicated terminal for type determination for determining the type of the head portion among the common terminals of the first connector, and when the first connector is connected,
And a switching unit that switches the operation control by changing the control signal of the second connector based on the determination result based on the determination result. Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an external view of a component mounting apparatus 1 to which the present invention is applied. The component mounting apparatus 1 has a built-in XY robot, and three mounting heads 4 or dispenser heads 23 (to be described later) are mounted on a drive base (head mounting portion) 3 screwed to an X-axis feed ball screw 2 of the XY robot. ) Can be detachably mounted. The drive base 3 has three mount parts 3a to 3c, and the mount part 3a
Each of the heads 3 to 3c is attached. In this embodiment, the central mounting portion 3b is a common mounting portion that can selectively mount either the mounting head 4 or a dispenser head 23 described later in accordance with the design specifications of the printed circuit board. Also, the other mounting parts 3a, 3c
Is a dedicated mount part to which only the mounting head 4 can be attached.

The component mounting apparatus 1 positions a printed board conveyed from a board supply device (not shown) at the center of the board base 5 of the component mounting apparatus 1 and, for example, by using three mounting heads 4, as shown in FIG. Components (chip resistors, chip capacitors, IC chips, etc.) are sucked from the component supply cassette 6 and mounted on a printed circuit board. In addition,
The printed circuit board on which the components are mounted by the component mounting apparatus 1 is sent to a reflow furnace (not shown) to solder the terminals, or is sent to an adhesive curing device by UV (ultraviolet) irradiation to cure the adhesive. You.

FIG. 2 is a view showing an attachment structure when the mounting head 4 is attached to the mount 3b of the drive base 3. As shown in FIG. In the figure, two slide rails 8 are fixed to an X-axis rail support plate 7, and the drive base 3 is slidably supported on the slide rails 8. An X-axis feed ball screw 2 is screwed into the center of the drive base 3. The mounting head 4
It is positioned by a parallel pin (not shown), and is detachably attached to the mount 3b of the drive base 3 by a fixing bolt or the like.

The mounting head 4 has a chuck claw 9 for holding the component.
(Cylinder 42 to be described later), a cylinder for adsorbing parts, and a cylinder (cylinder 45 to be described later) for raising and lowering the part of the nozzle 10 and the chuck claw 9, and rotating the nozzle 10 and the chuck claw 9 360 degrees forward and reverse. Pulse motors (not shown) are incorporated in the cylinder units 11, respectively. One end of the cylinder portion 11 is connected to two air tubes 12 for sending air to each of the cylinders and the nozzle 10. However, only one air tube 12 is shown in FIG. Each air tube 12 is provided with a solenoid valve 13 at an intermediate portion and a one-touch coupler insertion portion 14 at the other end. Further, the air tube 12 is manifolded by the one-touch coupler receiving portion 15.
Connected to 16. The manifold 16 is provided on an upper end surface of an angle 20 described later. One-touch
The appearances of the coupler insertion portion 14 and the one-touch coupler receiving portion 15 are as shown in FIG.

The solenoid valve 13 provided on the mounting head 4 is provided for each cylinder in order to operate each cylinder.
It includes an electromagnetic valve provided individually and an electromagnetic valve 13 for adsorbing components of the nozzle 10. Electrical wiring (not shown) for operating each solenoid valve 13 is connected to a solenoid valve plug 18 via a terminal block 17.
Connected to. The cylinder section 11 is provided with several sensors (not shown) for detecting a piston position.
Two or three sensor electrical signal cables are connected to the sensor-related plug 19 for each sensor. Further, a power cable of a chuck claw rotating pulse motor and an electric signal cable of a rotation detecting sensor (not shown) are connected to the sensor-related plug 19.

A metal angle 20 is fixed to the rear part of the drive base 3, and a receptacle 21 into which an electromagnetic valve-related plug 18 is inserted into an upper end surface of the angle 20 and a receptacle 22 into which a sensor-related plug 19 is inserted are vertically arranged. The positional relationship is fixed. The electric signal cables connected to the receptacles 21 and 22 are wired to the control circuit of the component mounting apparatus 1 body.

FIG. 3 is a diagram showing a mounting structure when the dispenser head 23 is mounted on the mount 3b of the drive base 3. As shown in FIG. The dispenser head 23 is positioned by a parallel pin (not shown) as in the case of the mounting head 4, and is removably attached to the mount 3b of the drive base 3 by a fixing bolt or the like.

The dispenser head 23 is for applying a coating agent such as an adhesive or a paste solder to a predetermined portion of a printed circuit board, and has a built-in syringe 24 for filling the coating agent. A heater 25 is provided around the syringe 24 to maintain the coating agent filled in the syringe 24 at a constant temperature, and a spring 26 for applying pressure to the syringe 24 is provided around the outer periphery of the heater 25. Have been. Thus, the coating agent filled in the syringe 24 is sent into the syringe 24 by the opening and closing operation of the solenoid valve 28, and is pushed out of the needle 27 by this air pressure.

Two ends of two air tubes 29 for sending air to the syringe 24 are connected to the syringe 24 of the dispenser head 23, similarly to the mounting head 4. However,
In FIG. 2, only one air tube 12 is shown.
Each of the air tubes 29 has an electromagnetic valve 28 interposed at an intermediate portion, and a one-touch coupler insertion portion 30 is attached to the other end. Further, the air tube 29 is connected to the manifold 16 by the one-touch coupler receiving portion 15 of the component mounting apparatus 1 body. The appearances of the one-touch coupler insertion section 30 and the one-touch coupler receiving section 15 are as shown in FIG.

The solenoid valve 28 provided on the dispenser head 23 includes a solenoid valve for sending air into the syringe 24 and a cylinder (not shown) for vertically moving the entire syringe 24 including the needle 27 (a cylinder 49 described later). And a solenoid valve for sending air to the vehicle. Electric wiring (not shown) for operating the solenoid valve 28 is connected to a solenoid valve plug 32 via a terminal block 31. In addition, the dispenser head
The 23 is provided with a position detection sensor (not shown) for detecting the rotational position of the syringe 24, and several sensor signal cables are connected to the sensor-related plug 33. The plug 32 related to the electromagnetic valve is fitted into the receptacle 21 of the main body of the component mounting apparatus 1, and the plug 33 related to the sensor is fitted into the receptacle 22. Although not shown, the dispenser head 23 has a built-in pulse motor for rotating the syringe 24 forward and backward by 180 degrees.

FIG. 5 shows the solenoid valve plugs 18 and 32 and the receptacle 2
FIG. 1 is a perspective view showing a state in which a sensor-related plug 19, 33 and a receptacle 22 are attached and detached.

FIG. 6 is a diagram showing an example of a sensor-related plug 33 of the dispenser head 23, a sensor-related plug 19 of the mounting head 4, and an electrical signal wiring of a connector terminal in the receptacle 22. The connector terminals of each plug and receptacle are composed of terminals No. 1 to No. 25.

First, the sensor-related plug 33 of the dispenser head 23
The configuration of the connector terminal will be described. Terminal No.1 ~
No. 9 is a common terminal which is common to the sensor-related plugs 19 and 33. Terminals No. 10 to No. 13 are optional and are arbitrarily selected according to the specifications of the component mounting apparatus 1.
Terminals No. 14 to No. 22 are empty terminals and are not used in this sensor-related plug 33. Terminals No.23 to No.25 are also the above terminal No.1
These are common terminals as in No. 9 to No. 9.

Next, regarding the sensor-related plug 19 of the mounting head 4,
The configuration of the connector terminal will be described. Terminals No. 1 to No. 9 are common terminals similar to the sensor-related plug 33. Terminal No.10
Nos. To No. 13 are terminals which are also optional and are arbitrarily selected according to the specifications of the component mounting apparatus 1. Terminal No.14 ~ N
Reference numeral o.22 denotes a dedicated terminal used only for the mounting head 4.
Terminals No. 23 to No. 25 are common terminals similar to the terminals No. 1 to No. 9 described above.

Further, the configuration of the connector terminal of the receptacle 22 of the component mounting apparatus 1 will be described. Terminal No.1 to No.9
Is the terminal No. 1 which is the common terminal of the sensor-related plugs 19 and 33.
~ No.9. Terminals No. 10 to No. 13 are
Terminal N, also an option for sensor-related plugs 19 and 33
This terminal is connected to o.10 to No.13. Terminal No.14 to No.2
Reference numeral 2 denotes a dedicated terminal used only for the mounting head 4. Terminals No. 23 to No. 25 are common terminals similar to the terminals No. 1 to No. 9 described above.

Therefore, the user simply attaches the sensor-related plug 19 or 33 to the component mounting apparatus 1 main body side.
It is only necessary to insert into the 22 and no troublesome connection is required.

FIG. 7 is a diagram showing an example of the electric valve wiring plug 32 of the dispenser head 23, the electromagnetic valve plug 18 of the mounting head 4, and the electric signal wiring of the connector terminal in the receptacle 21. The connector terminals of each plug and receptacle are composed of terminals No. 1 to No. 15.

First, plug 32 related to solenoid valve of dispenser head 23
The configuration of the connector terminal will be described. Terminal No.1 ~
No. 4 is a common terminal which is common to the solenoid valve plugs 18 and 32. Terminals No.5 to No.8 are dispenser heads
Dedicated terminal used only for 22. Terminal No.9, No.11, N
o.12 and No.14 are common terminals similarly to the terminals No.1 to No.4. Terminals No. 10, No. 13 and No. 15 are empty terminals and are not used in the plug 32 related to the solenoid valve.

Next, regarding the solenoid valve-related plug 18 of the mounting head 4,
The configuration of the connector terminal will be described. Terminals No. 1 to No. 4 are common terminals similar to the solenoid valve plug 32. Terminal No.5 ~
No. 8 is an empty terminal, and is not used in this solenoid valve plug 18. Terminals No. 9, No. 11, No. 12, No. 14 are common terminals similar to the solenoid valve plug 32. Terminal No.10, No.13, No.15
Is a dedicated terminal used only for the mounting head 4.

Further, the configuration of the connector terminal of the receptacle 21 of the component mounting apparatus 1 will be described. Terminal No.1 to No.4
Are connected to terminals No. 1 to No. 4 of the solenoid valve plugs 18 and 32. Terminals No. 5 to No. 8 are dedicated terminals for the dispenser head used only for the dispenser head 23. Terminals No. 9, No. 11, No. 12, and No. 14 are common terminals similar to the plugs 18 and 32 related to the solenoid valve. Terminal No.10, No.13, No.
Reference numeral 15 denotes a mounting head dedicated terminal used only for the mounting head 4.

Therefore, the user only has to insert and insert the electromagnetic valve plug 18 or 32 into the receptacle 21 of the component mounting apparatus 1 main body, and no troublesome connection is required.

Next, the air piping will be described with reference to FIG. Here, as described above, since the mounting portion 3b is a common mounting portion to which either the mounting head 4 or the dispenser head 23 can be attached according to the specification, it depends on the type of the head attached to the mounting portion 3b. Thus, the air supply and the output of the electric signal are switched.

FIG. 8 (A) shows the component mounting apparatus 1 in the mounting section 3b.
8 (B) is an air piping diagram of the mounting head, and FIG. 8 (C) is an air piping diagram of the dispenser head 23.

In FIG. 8A, AR is an air supply source for supplying air at a positive pressure. The air supplied from the air supply source AR is supplied to the regulator 34. The regulator 34 includes a pressure gauge, and adjusts and outputs air pressure in accordance with an operation of an operation unit (not shown). The air output from the regulator 34 is supplied to the one-touch coupler C1 and the solenoid valve 35.

The solenoid valve 35 switches the pipe based on a switching signal output from a control circuit (not shown).

That is, when the switching signal is not input (the state shown), the solenoid valve 35 directly supplies the output of the regulator 34 to the one-touch coupler C2 and closes the input side of the regulator 36.

When the switching signal is input, the solenoid valve 35 supplies the output of the regulator 34 to the input side of the regulator 36 and connects the output of the regulator 36 to the one-touch coupler C2. In other words, the input of the switching signal
The output of 34 is regulated by the regulator 36 and supplied to the one-touch coupler C2.

The regulator 36 is provided on the operation panel 37 of the component mounting apparatus 1 and includes a pressure gauge like the regulator 34, and adjusts and outputs the air pressure according to the operation of the operation panel 37.

In FIG. 8B, the air supplied from the one-touch coupler C1 is supplied to the solenoid valve 38.

Like the solenoid valve 35, the solenoid valve 38 switches the piping based on a switching signal output from a control circuit (not shown). When no switching signal is input (the state shown in the figure),
Close the output of the one-touch coupler C1. At this time, the convum (vacuum generation device) 40 generates a vacuum by air supplied from the one-touch coupler C2, and sucks and exhausts outside air from the nozzle 39. As a result, it is possible to pick up components.

When the switching signal is input, the one-touch coupler
The air supplied from C1 is supplied to the input side of the nozzle 39.
Thereby, the sucked component is released. The air supplied from the one-touch coupler C1 is supplied to the solenoid valve 41.

Like the solenoid valve 35, the solenoid valve 41 switches the pipe based on a switching signal output from a control circuit (not shown). When the switching signal is not input (the state shown),
The air from the one-touch coupler C1 is supplied to the upper hole of the cylinder 42, and the exhaust valve of the lower hole of the cylinder 42 is exhausted.
Discharge from 43. Thereby, the piston in the cylinder 42 descends, and the chuck claw 9 closes (or opens).

When the switching signal is input, the one-touch coupler
The air supplied from C1 is supplied to the lower hole of the cylinder 42, and the exhaust from the upper hole of the cylinder 42 is exhausted from the exhaust valve 43. This raises the piston in the cylinder 42,
The chuck claw 9 opens (or closes).

Like the solenoid valve 41, the solenoid valve 44 switches the pipe based on a switching signal output from a control circuit (not shown). When the switching signal is not input (the state shown),
The air from the one-touch coupler C1 is supplied to the upper hole of the cylinder 45, and the exhaust valve is exhausted from the lower hole of the cylinder 45.
Discharge from 43. Thereby, the nozzle 39 of the mounting head 4 is
And the part of the chuck claw 9 descends.

When the switching signal is input, the one-touch coupler
The air supplied from C1 is supplied to the lower hole of the cylinder 45, and the exhaust from the upper hole of the cylinder 45 is exhausted from the exhaust valve 43. As a result, the nozzle 39 and the chuck pawl 9 of the mounting head 4 are raised.

In FIG. 8C, the air supplied from the one-touch coupler C2 is supplied to the solenoid valve 46.

The solenoid valve 46 switches the pipe based on a switching signal output from a control circuit (not shown), similarly to the solenoid valve 35. When the switching signal is not input (the state shown),
Close the output of the one-touch coupler C2.

When the switching signal is input, the one-touch coupler
The air supplied from C2 is supplied to the input side of the syringe 47.

Like the solenoid valve 41, the solenoid valve 48 switches the pipe based on a switching signal output from a control circuit (not shown). When a switching signal is not input (the state shown),
Air from the one-touch coupler C1 is supplied to the upper hole of the cylinder 49, and exhaust gas is exhausted from the lower hole of the cylinder 49.
Discharge from 50. This allows the dispenser head 23
Cylinder 47 is lowered.

When the switching signal is input, the one-touch coupler
The air supplied from C1 is supplied to the lower hole of the cylinder 49, and the exhaust from the upper hole of the cylinder 49 is exhausted from the exhaust valve 50. This allows the syringe of the dispenser head 23
47 rises.

Further, the operation of the control circuit for discriminating between the case where the mounting head 4 is mounted on the mount portion 3b of the component mounting apparatus 1 and the case where the dispenser head 23 is mounted will be described with reference to FIG.

FIG. 9 (A) is a sensor wiring diagram showing a case where the mounting head 4 is mounted on the mount section 3b of the component mounting apparatus 1, and FIG. 9 (B) is a dispenser head 23 mounted on the mount section 3b of the component mounting apparatus 1. It is a sensor wiring diagram which shows the case where it was attached.

In FIG. 9A, the nozzle 51 of the mounting head 4 (corresponding to the nozzle 39 in FIG. 8) rotates forward and backward by 360 degrees.
A sensor 52 for detecting the origin position is provided. The sensor 52 outputs an ON signal to the control circuit of the component mounting apparatus 1 via a signal cable when the nozzle 51 is at the home position.
The cylinder 53 (corresponding to the cylinder 45 in FIG. 8)
A sensor 54 that outputs an ON signal when the piston is at the uppermost position and a sensor 55 that outputs an ON signal when the piston is at the lowermost position are provided. The outputs of sensors 54 and 55 are
Each is supplied to a control circuit of the component mounting apparatus 1 by a signal cable.

The cylinder 56 (corresponding to the cylinder 42 in FIG. 8) opens and closes the chuck jaws 9. When the chuck jaws 9 are in the open (or closed) position, a sensor 57 that outputs an ON signal and the chuck jaws 9 are closed ( Or an open) position, a sensor 58 that outputs an ON signal is provided. Outputs of the sensors 57 and 58 are supplied to a control circuit of the component mounting apparatus 1 through signal cables.

In FIG. 9B, the syringe 59 of the dispenser head 23 rotates forward and backward by 180 degrees, and is provided with sensors 60 and 61 for detecting forward and reverse rotation limit positions. The sensors 60 and 61 output an ON signal to the control circuit of the component mounting apparatus 1 via the signal cable when the syringe 59 is at the forward rotation limit position and when the syringe 59 is at the reverse rotation limit position, respectively.

The cylinder 62 (corresponding to the cylinder 49 in FIG. 8) moves the cylinder 59 up and down, and is turned on when the piston is at the uppermost position.
A sensor 63 that outputs a signal and a sensor 64 that outputs an ON signal when the sensor is at the lowest position are provided. Outputs of the sensors 63 and 64 are supplied to a control circuit of the component mounting apparatus 1 through signal cables. The dispenser head 23 is configured such that the signal cable is short-circuited and an always-on signal is output.

The control circuit (not shown) is configured to determine the type of the head mounted on the mount 3b based on the output of each sensor. For example, when the operation panel instructs that the mounting head 4 is mounted, and when the dispenser head 23 is actually mounted, the control circuit operates as follows to determine the type of the head unit.

First, the control circuit supplies air for lowering the piston of the cylinder 56, and determines whether or not a signal cable outputs a sensor OFF signal and a signal cable outputs a sensor ON signal. In this case, if the mounting head 4 is attached, the sensor 57
Turn OFF and output the OFF signal from the signal cable.
The sensor 58 turns on and outputs an ON signal from the signal cable.

However, since the dispenser head 23 is actually mounted, the signal cable is always short
A signal is output, and the signal cable is connected to the sensor 61 that detects the rotation limit position in the reverse direction of rotation.
No signal is output. Therefore, the control circuit determines that the dispenser head 23 is attached. Then, based on this determination, the control circuit changes the control signal to each solenoid valve to switch the supply of air, or changes the drive signal to the pulse motor.

In the present invention, the "head portion" is a mounting head for mounting components, a dispenser head for supplying an adhesive such as an adhesive or paste solder, or a drill head having a drill for making a hole in a printed circuit board. Is included. The “operation output” is for controlling the head unit, and includes an operation output by a fluid pressure such as an air pressure, a hydraulic pressure, and a water pressure, an operation output by an electric signal, an operation output by an optical signal, and the like.

[Effects of the Invention] As described above in detail, according to the present invention, a head mounting portion movably provided and capable of detachably mounting a plurality of types of head portions, and a head mounting portion mounted on the head mounting portion. Since an operation switching unit for switching the operation output for controlling the head unit according to the type is provided, the function of the head unit can be easily changed, and a compatible component mounting apparatus can be provided.

[Brief description of the drawings]

Drawings show an embodiment of the present invention, FIG. 1 is an external view of a component mounting apparatus, FIG. 2 is a view showing a mounting structure of a mounting head, FIG. 3 is a view showing a mounting structure of a dispenser head, FIG. 4 is a diagram showing details of a one-touch coupler, and FIG.
FIG. 6 is a perspective view showing a state in which a solenoid-related plug and a sensor-related plug are attached to and detached from each receptacle. FIG. 6 is a diagram showing an example of electric signal wiring of a connector terminal in the sensor-related plug and the receptacle. FIG. 8 is a diagram showing an example of electric signal wiring of a connector terminal in a valve plug and a receptacle, FIG. 8 is an air piping diagram, and FIG. 1 ... Component mounting device, 2 ... X-axis feed ball screw, 3 ...
... Drive stand, 3a ~ 3b ... Mount part, 4 ... Mounting head,
5 ... board base, 6 ... parts supply cassette, 7 ... rail support plate, 8 ... slide rail, 9 ... chuck jaws, 10
… Nozzle, 11… Cylinder, 12… Air tube, 13, 28… Solenoid valve, 14, 30… One-touch coupler insertion part, 15… One-touch coupler receiver, 16… Manifold, 17,31 ... Terminal block, 18,32 ... Solenoid valve plug, 19,33 ... Sensor plug, 20 ... Angle, 21,
22… Receptacle, 23… Dispenser head, 24
…… Syringe, 25 …… Heater, 26 …… Spring, 27…
… Needles, 34,36 …… Regulators, 35,38,41,44,46,
48… Solenoid valve, 37… Operation panel, 39… Nozzle, 40…
... Convum, 42,45,49 ... Cylinder, 43,50 ... Exhaust valve, 51 ... Nozzle, 52,54,55,57,58,60,61,63,64 ... Sensor, 53,56, 62 …… Cylinder, 59 …… Syringe, C1, C2
... One-touch coupler.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-95553 (JP, A) JP-A-63-272436 (JP, A) JP-A-63-12005 (JP, A) 51545 (JP, U) Shokai Sho 61-87481 (JP, U) JP 2-42635 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) B23P 19/00 301 H05K 13/04 B23P 21/00 305 G06F 11/30

Claims (1)

(57) [Claims] 1. A head mounting portion which is movably provided and to which a plurality of types of head portions can be detachably mounted, a first connector which is detachably connectable for connecting the head mounting portion and an operation control portion, and said operation control. Connecting / disconnecting second part that connects the drive unit and the drive unit
A dedicated terminal for discriminating the type of the head portion among the common terminals of the first connector, wherein when the first connector is connected, the type is determined. A switching unit for determining a type of the head by a terminal for determination, and changing a control signal of the second connector to switch operation control based on a result of the determination. apparatus.