JP2001036292A - Component mounting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a component mounting apparatus including an automatic lubricating function without manual lubrication required. SOLUTION: The component mounting apparatus includes a component supply section 2 for supplying a component 1, a substrate positioning section 4 for positioning a substrate 3 to receive the mounted component 1, and a head 6 having along a periphery a plurality of suction nozzles 5 for sucking and mounting the component 1. The suction nozzles 5 are activated to perform operation simultaneously by a driving section 15 at each stop position of the head 6 which is intermittently rotating, so that the components 1 are mounted on the substrate 3. In this case, a can shaft 10 which is rotatably held and equipped with a plate cam 13 fixed and a roller 18 which follows an outer form of the plate cam 13 on the driving section 15 are placed in an oil reservoir 14, to have the plate cam 13 and the roller 18 soaked in an oil 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component mounting apparatus for mounting components such as electronic components on a board such as a printed board.

[0002]

2. Description of the Related Art As a conventional component mounting apparatus, for example, FIG.
The following is known. Hereinafter, description will be made with reference to FIG.

[0003] In FIG. 4, a component supply section 102 for accommodating and automatically supplying an electronic component 101 and an electronic component 1 are provided.
A substrate positioning unit 104 is provided for positioning the substrate 103 on which the 01 is mounted in XY2 directions orthogonal to each other. Reference numeral 105 denotes an index unit that moves intermittently. A head 107 holding a plurality of suction nozzles 106 is attached to the periphery of a first output shaft 105a extending below the index unit 105. . Further, a rotating body 108 is fixed to the second output shaft 105b extending to the side of the index unit 105. 109 is a belt, one of which is a rotating body 108
And a rotating body 11 having the other fixed to one end of the camshaft 110.
1 is engaged.

The camshaft 110 is rotatably held by a bearing (not shown), and has a plate cam 112 fixed thereto. A drive unit 113 is provided above the plate cam 112. The drive unit 113 has a first drive lever 114 pivotally supported at a central portion CH3 and rotatably supported. The first drive lever 114 has a cam follower 115 that follows one end along the lift of the plate cam 112. Are rotatably mounted, and the plate cam 11 is
2 and the plate cam 1 is rotated with the rotation of the camshaft 110.
It swings following the lift of 12. Further, a first connection link 117 is connected to the other end of the first drive lever 114, and the other end of the first connection link 117 is connected to the fulcrum pin 12.
The other end of the link block 118 rotatably supported at 3 and one end of the second connection link 119 are connected to the connection pin 120.
It is connected to. The other end of the second connecting link 119 has a central portion CH4 pivotally supported and is rotatably supported by a second portion.
Is connected to one end of the drive lever 121. This second
The lifting roller 122 rotatably attached to the other end of the driving lever 121 is engaged with a part of the head 107 capable of moving the suction nozzle 106 up and down, and is urged by a spring 125 to perform the second driving. It is configured to follow the swing of the lever 121.

The operation of the component mounting apparatus having the above configuration will be described. The index unit 105 causes the first output shaft 105a and the head unit 107 to start intermittent rotation. The head unit 107 holds the component 101 automatically supplied from the component supply unit 102 at the component holding position to the suction nozzle 10.
6, the suction nozzle 106 is moved to the component mounting position.
Is transported. At the same time, the index unit 10
5, when the second output shaft 105b and the rotating body 108 perform an intermittent rotation operation, the rotating body 111
Is rotated, and the camshaft 110 is rotated.
12 also rotates. When the cam follower 115 follows the lift of the plate cam 112, the first drive lever 1
14 swings around the center CH3, the fulcrum pin 12
The first and second links 117 and 119 move up and down while being restricted by the swing of the link block 118 about the center 3,
Accordingly, the second drive lever 121 swings, and the second drive lever 121
When the lifting roller 122 engaged with the other end of the drive lever 121 moves up and down, a part of the head 107 engaged with the roller 122 follows the up and down movement. The component 101 is mounted on the substrate 103 at a predetermined position in the suction nozzle 106.

In order to secure the reliability of the above operation, the cam follower 11 is periodically and manually input from an oil supply port 124 provided in the first drive lever 114 by using an oil supply means (not shown).
He was refueling 5 mag.

[0007]

However, in the above-described structure, lubrication work of grease or the like is required periodically in order to prevent seizure of cam followers, cam shaft bearings, etc., which cause a decrease in reliability. In addition, there has been a problem that it has to be performed manually, and it takes much time to maintain the reliability and the work efficiency is poor.

The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide a component mounting apparatus in which lubrication is automatically and reliably performed and work efficiency is high and high reliability is obtained.

[0009]

According to the present invention, there is provided a component mounting apparatus comprising: a component supply unit for supplying a component; a substrate positioning unit for positioning a substrate on which the component is mounted; and a suction nozzle for suctioning and mounting the component. At the stop position of the intermittently rotating head unit, the suction nozzle is operated at the stop position of the head unit that has a plurality of parts on the top, the work is performed simultaneously, and the component mounting device that mounts components on the board is rotatable The camshaft, which is fixed to the plate cam and fixed to the plate cam, and a roller that follows the outer shape of the plate cam in the driving section are arranged in an oil bath, and the plate cam and the roller are immersed in oil. Is automatically and reliably performed, so that manual refueling work is not required, and high reliability can be ensured with good work efficiency. Further, the space between the plate cam and the rollers and the rollers are always lubricated with oil, so that the rollers smoothly follow the lift of the plate cam, and their wear can be reduced.

Further, if an oil amount recognizing unit for recognizing the amount of oil in the oil tank and means for displaying the oil amount recognized by the oil amount recognizing unit are provided, the oil amount can be easily confirmed when necessary. it can.

If an oil circulating portion capable of supplying and recovering oil in the oil tank is provided, high lubrication performance can be stably maintained, and the oil amount can be adjusted to a predetermined amount based on the recognized oil amount. In this case, more stable driving can be obtained, and the reliability of the device can be improved. In addition, when the apparatus is relocated, the oil can be collected once, and the oil can be supplied again after the relocation.

Further, if the oil circulation section has a filtration section for removing foreign matters of oil in the oil tank, the generated foreign matters can be removed and highly reliable lubrication can be maintained.

When the drive section has a drive lever rotatably supported and provided with a roller at one end, the drive section smoothly follows the lift of the plate cam, thereby ensuring a stable operation.

If the oil tank has a seal portion for sealing the outer periphery of the camshaft, the camshaft can be easily connected to a drive system outside the oil tank.

If the oil tank has a bearing that rotatably holds the camshaft and is lubricated by the oil in the oil tank, lubrication of the camshaft bearing can also be performed by the oil in the oil tank. it can.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the component mounting apparatus according to the present invention will be described below with reference to FIGS.

In FIG. 1, a component supply unit 2 for accommodating and automatically supplying an electronic component 1, a substrate positioning unit 4 for positioning a substrate 3 on which the electronic component 1 is mounted in XY2 directions orthogonal to each other, and a component supply unit 2 The electronic component 1 supplied by the substrate 3 and the substrate 3 positioned by the substrate positioning unit 4
A head unit 6 is provided in which a plurality of suction nozzles 5 mounted thereon are vertically movably arranged on a peripheral edge portion. The suction nozzle 5 repeatedly moves circumferentially between the component supply unit 2 and the board positioning unit 4 and is controlled to a required height in accordance with the moving position. Reference numeral 7 denotes an index unit that moves intermittently. A head unit 6 is attached to a first output shaft 7a extending below the index unit 7, and the head unit 6 is intermittently rotated at intervals of the arrangement of the suction nozzles 5. It is configured to perform the intended work at each stop position at the same time.

A rotating body 8 is fixed to a second output shaft 7b extending to the side of the index unit 7. 9
Is a belt, one of which is a rotating body 8 and the other is a cam shaft
Is engaged with a rotating body 11 fixed to one end of the rotating body 11. The cam shaft 10 is rotatably held by a bearing 12 and has a plate cam 13 fixed thereto.

1 and 2, reference numeral 14 denotes an oil tank in which the plate cam 13 and the camshaft 10 are immersed in oil 27 therein, and the bearing 12 of the camshaft 10 is lubricated by the oil 27. You. One end of the camshaft 10 to which the rotating body 11 is fixed extends to the outside of the oil bath 14, and the outer periphery of the camshaft 10 is sealed by a seal portion 16 in a penetrating portion of the oil bath 14.

A drive section 15 which is operated by the rotation of the plate cam 13 is provided above the oil tank 14. The drive unit 15 has a first drive lever 17 whose central portion CH1 is pivotally supported and rotatably supported.
7 is a roller 1 that follows one end along the lift of the plate cam 13
8 is rotatably mounted, urged toward the plate cam 13 by a spring 19, and swings following the lift of the plate cam 13 with the rotation of the cam shaft 10. The oil tank 14 has a depth sufficient to immerse the roller 18 in the oil 27, and the roller 18 is immersed in the oil. A first connection link 20 is connected to the other end of the first drive lever 17. The other end of the first connection link 20, the other end of the link block 21, and one end of the second connection link 22 Are connected by a connecting pin 23. The link block 21 is rotatably supported by a fulcrum pin 28.

The other end of the second connecting link 22 is connected to a central portion C
H2 is connected to one end of a second drive lever 24 pivotally supported and rotatably supported.
A lift roller 25 is rotatably attached to the other end of the roller. The elevating roller 25 is engaged with a part of the head unit 6 that can move the suction nozzle 5 up and down, is urged by a spring 26, and is configured to follow the swing of the second drive lever 24. I have.

In FIG. 3, reference numeral 29 denotes an oil amount recognizing unit for recognizing the amount of oil in the oil tank 14, and reference numeral 30 denotes a control unit for displaying the amount of oil recognized by the oil amount recognizing unit 29 to an operator. . 31 is the oil 2 in the oil tank 14
An oil circulating unit for supplying and recovering the oil 7, and a filtering unit 32 capable of removing foreign matter in the oil 27 is provided.

Next, the operation of the electronic component mounting apparatus having the above configuration will be described. The index unit 7 causes the first output shaft 7a and the head section 6 to start intermittent rotation.
The head unit 6 sucks and holds the electronic component 1 automatically supplied from the component supply unit 2 by the suction nozzle 5 at the component holding position,
The suction nozzle 5 is transferred to the component mounting position. At the same time, when the second output shaft 7 b and the rotating body 8 intermittently rotate by the index unit 7, the rotating body 11 rotates via the belt 9, and the camshaft 10 rotates in the oil 27 of the oil tank 14. By doing so, the plate cam 13 also rotates.

When the roller 18 follows the lift of the plate cam 13, the first drive lever 17 is moved to the center CH.
1, the first and second connecting links 20 and 22 move up and down while being restricted by the swing of the link block 21 about the fulcrum pin 28, and the second drive lever 24 Swings, and the up-and-down roller 25 engaged with the other end of the second drive lever 24 moves up and down accordingly, whereby one of the head portions 6 with which the up-and-down roller 25 is engaged is moved. Since the unit follows the vertical movement, the suction nozzle 5 moves up and down and is positioned, and the suction nozzle 5 sequentially mounts the electronic component 1.

The oil amount in the oil tank 14 is recognized by the oil amount recognition unit 29, and the control unit 30 displays the recognized oil amount to the operator. Further, in order to adjust the oil amount recognized by the oil amount recognition unit 29 to a predetermined amount set in advance, the oil circulation unit 31 supplies and recovers the oil 27 according to a command from the control unit 30.

[0026]

According to the component mounting apparatus of the present invention, the cam shaft having the plate cam fixed thereto and the roller which follows the outer shape of the plate cam in the driving section is rotatably held as described above. Since it is placed in the oil tank and the cam and roller are immersed in oil, lubrication is performed automatically and reliably.
This eliminates the need for manual refueling work, ensuring high reliability with high work efficiency.Also, the gap between the plate cam and the rollers and the rollers are always lubricated with oil, and the rollers smoothly follow the lift of the plate cam. Wear can also be reduced.

Further, if an oil amount recognizing unit for recognizing the oil amount in the oil tank and means for displaying the oil amount recognized by the oil amount recognizing unit are provided, the oil amount can be easily confirmed when necessary. it can.

If an oil circulating portion capable of supplying and recovering oil in the oil tank is provided, high lubrication performance can be stably maintained, and the oil amount can be adjusted to a predetermined amount based on the recognized oil amount. In this case, more stable driving is obtained, and the reliability of the device is improved. In addition, when the apparatus is relocated, the oil can be collected once, and the oil can be supplied again after the relocation.

Further, if the oil circulation section has a filtration section for removing foreign substances of oil in the oil tank, the generated foreign substances can be removed and highly reliable lubrication can be maintained.

If the drive section has a drive lever rotatably supported and provided with a roller at one end, the drive section smoothly follows the lift of the plate cam, thereby ensuring a stable operation.

When the oil tank has a seal portion for sealing the outer periphery of the camshaft, the camshaft can be easily connected to a drive system outside the oil tank.

Further, if the oil tank has a bearing that rotatably holds the camshaft and is lubricated by oil in the oil tank, lubrication of the camshaft bearing can also be performed by oil in the oil tank. it can.

[Brief description of the drawings]

FIG. 1 is a partial sectional front view of a component mounting apparatus according to an embodiment of the present invention.

FIG. 2 is a sectional side view of an oil tank of a main part of the embodiment.

FIG. 3 is a perspective view showing a system configuration of the embodiment.

FIG. 4 is a partial sectional front view of a conventional component mounting apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic component 2 Component supply part 3 Substrate 4 Substrate positioning part 5 Suction nozzle 6 Head part 10 Camshaft 12 Bearing 13 Plate cam 14 Oil tank 15 Drive part 16 Seal part 17 First drive lever 18 Roller 27 Oil 29 Oil amount recognition Unit 30 Control unit (display means) 31 Oil circulation unit 32 Filtration unit

Continued on the front page (72) Inventor Kunio Sakurai 1006 Kadoma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. (72) Inventor Kyoyasu Hamasaki 1006 Kadoma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. Inventor Hiroshi Ota 1006 Kazuma Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. F-term (reference) 5E313 AA01 AA11 CC03 CC07 CC08 CD02 CD06 EE02 EE24 FF11 FF24 FF29 FG10

Claims (7)

[Claims] A component supply unit for supplying a component, a substrate positioning unit for positioning a substrate on which the component is mounted, and a head unit having a plurality of suction nozzles on a peripheral edge for suctioning and mounting the component; At a stop position of the intermittently rotating head unit, the suction nozzle is operated by the drive unit to perform the work at the same time, and in a component mounting apparatus that mounts components on the board, a cam that is rotatably held and the plate cam is fixed. A component mounting device, wherein a shaft and a roller that follows an outer shape of a plate cam in a driving unit are arranged in an oil tank, and the plate cam and the roller are immersed in oil. 2. The component mounting according to claim 1, further comprising an oil amount recognizing unit for recognizing the amount of oil in the oil tank, and means for displaying the oil amount recognized by the oil amount recognizing unit. apparatus. 3. The component mounting apparatus according to claim 1, further comprising an oil circulating portion capable of supplying and recovering oil in the oil tank. 4. The component mounting device according to claim 3, wherein a filter section is provided in the oil circulating section for removing foreign matters of the oil in the oil tank. 5. The component mounting apparatus according to claim 1, wherein the drive unit has a drive lever rotatably supported and provided with a roller at one end. 6. The component mounting device according to claim 1, wherein the oil tank has a seal portion for sealing an outer periphery of the cam shaft. 7. The component mounting apparatus according to claim 1, wherein the oil tank has a bearing that rotatably holds the cam shaft and is lubricated by oil in the oil tank.