JPH06278805A - Electronic parts supply device - Google Patents

Abstract

PURPOSE:To provide an electronic parts supplying device which is easy to make tray selection and can smoothly perform the tray drawout motion from a magazine. CONSTITUTION:An electronic parts supplying device is composed of a mother board 4 to hold a tray 210 on which electronic parts are placed, a magazine 3 to support a plurality of mother boards in such a way as stacked surely with a given spacing and with possibility of being dram out, an elevator mechanism 2 having an elevating table 10 on which magazine 3 is placed, and a transporting mechanism 5 to draw out each mother board, which is located to a specific level by the elevating/sinking motions of the elevator mechanism 2, from the magazine 3 to the electronic parts supplying position situated ahead. The transporting mechanism 5 has a guide rail 103 to support the mother board slidably and a drawout member 80 moving along the guide rail 103, and mother board 4 is equipped with a groove 73 to be engaged by the drawout member 80.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component supplying apparatus for supplying electronic components arranged on a tray in a fixed positional relationship to an electronic component mounting machine.

[0002]

2. Description of the Related Art As a conventional electronic component supply apparatus of this type, there is JP-A-3-206695. This Japanese Patent Laid-Open No. 3-
No. 206695 discloses a configuration in which a tray accommodating electronic components is fixed to a tray plate portion and the tray plate portion is provided so as to be drawn out to a vertically driven magazine. The electronic components are supplied to the electronic component mounting machine from the tray on the tray plate pulled out from the magazine.

[0003]

The selection of the tray plate on which the tray is mounted and the withdrawal from the magazine must be carried out smoothly and without damaging the electronic components arranged on the tray. Otherwise, the electronic components placed on the tray may be displaced.

In view of the above points, it is an object of the present invention to provide an electronic component supply device which makes it easy to select a tray and can smoothly perform the operation of pulling out the tray from the magazine.

[0005]

In order to achieve the above-mentioned object, an electronic component supply apparatus of the present invention comprises a mother board which holds a tray on which electronic components are mounted, and a plurality of mother boards which can be pulled out in a multi-step manner at regular intervals. A magazine that supports the stacking state, an elevator mechanism that has an elevating table on which the magazine is placed, and a motherboard that is positioned at a specific height by the elevating operation of the elevator mechanism draws out from the magazine to a front electronic component supply position. And a guide member for slidably supporting the motherboard, and a drawer member that moves along the guide rail, and the motherboard has a groove portion that engages with the drawer member. It is configured to have.

[0006]

In the electronic component supplying apparatus of the present invention, the specific mother board on which the tray having the necessary electronic components is mounted is selected by vertically moving the magazine supporting the mother boards in a multi-tiered state by the elevator mechanism. The pull-out member is set so as to engage with the groove portion of, and the pull-out member is moved along the guide rail to slide the specific motherboard on the guide rail to the electronic component supply position for the electronic component mounting machine. Can be withdrawn.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of an electronic component supply apparatus according to the present invention will be described below with reference to the drawings.

1 to 4 show the overall construction of the electronic component supply apparatus, and FIGS. 5 to 9 show the construction of the magazine.
0 and FIG. 11 show the configuration of the motherboard, and FIG. 12 shows an electronic component mounting machine using the electronic component supply device.

1 to 4, reference numeral 1 denotes a main body frame, and an elevator mechanism 2 having a lift 10 is provided inside the main body frame 1. The elevator mechanism 2 includes support plates 11 and 12 fixed inside the body frame 1.
There is a pair of ball screw shafts 13 rotatably supported between them. As shown in FIG. 3, the ball screw shafts 13 are screwed into a ball screw nut 14 fixed to the lift table 10. As shown in FIG. 4, the pulleys 15 are fixed to the lower ends of the ball screw shafts 13, respectively, and the rotation of the fixed pulley 18 is transmitted to the rotary shaft of the lifting drive pulse motor 17 via the timing belt 16. ing. As a result, the pair of ball screw shafts 13 can be rotated by an equal amount by the lifting drive pulse motor 17, and the lift table 10 is lifted and lowered with the rotation of the pair of ball screw shafts 13.

A magazine 3 to be placed on the lifting table 10.
5 to 9, the basic structure is a frame body 23 in which left and right grooved side plates 22 are fixed between an upper plate 20 and a bottom plate 21, and a rear cover 24 is freely rotatable on the left and right of the rear surface of the frame body. (However, the rear cover on one side is omitted in FIG. 6). Further, the upper plate 20 has a transfer handle 50.
Is attached. The left and right grooved side plates 22 are shown in FIG.
It has a large number of guide grooves 25 at equal intervals that slidably support both edges of the mother board 4. The rear cover 24 has a hinge pin 26 fixed to the upper plate 20 and the bottom plate 21.
The lower end of the lock knob 27, which is pivotally supported by the frame body 23 and is attached to the upper plate 20, has the engagement hole 2 of the rear cover 24.
The back cover 24 is adapted to be locked in a closed state when it is fitted into the housing 8. The lock knob 27 is held by a support member 29 fixed to the upper plate 20 so as to be able to move up and down, and is urged by a compression spring 30 to always project downward. Therefore, the opening / closing operation of the back cover 24 is performed by the lock knob 27.
Can be performed by the operator pulling up to disengage the lower end of the lock knob 27 from the engagement hole 28 on the cover side.

Sliders 32 are slidably attached to the left and right sides of the upper plate 20 by slider retainer fittings 31 as shown in FIG. 7, and the mother board 4 of FIG. The lock bar 33 is fixedly connected to the tip of the slider 32 with screws or the like so as not to be damaged. A notch 34 is formed in the front left and right portions of the upper plate 20 to narrow the width, and the left and right lock bars 33 are located in the notches 34, respectively. Lock release levers 40 are pivotally attached to the left and right of the upper plate 20 by pins 41, and a pin 43 fixed on the slider 32 is engaged with a long hole 42 of the lock release lever 40. An extension spring 44 is arranged between the rear end of the slider 32 and the pin 45 fixed to the upper plate 20, and as a result, the pair of lock bars 3 are provided.
Each slider 32 is urged in such a direction that the interval of 3 becomes narrower. These lock bar 33 and lock release lever 4
The function of 0 will be described later. In FIG. 5, the lock bar 33
The lock release lever 40 is shown only on one side.

10 and 11 show the mother board 4. As shown by the phantom line in FIG. 10, since the outer shape of the tray 210 in which the electronic components 200 such as surface mounting ICs are arranged in a fixed positional relationship is not constant, the structure in which the tray is directly supported by the magazine 3 corresponds to the variety of trays. Since this is not possible, a structure is adopted in which the tray is placed and fixed on the mother board 4. The main body board 70 of the mother board 4 has elongated holes 60A along the X direction (width direction) and the Y direction (depth direction),
60B, respectively, and tray holding members 61A, 61B are mounted so that the mounting positions can be changed by using the elongated holes 60A, 60B. Tray pressing member 61
A and 61B are a fixed block 62 and the fixed block 6
It has a pressing part 64 pivotally supported by 2 and a compression spring 65 for urging the pressing part 64 in the forward direction. The compression spring 65 is built in the fixed block 62. Further, the tray pressing members 61A and 61B are fixed by tightening the nuts on the back side of the elongated holes 60A and 60B formed in the main body board 70 with the screws 66 penetrating the fixing block 62. Therefore, the tray pressing members 61A, 61
To change the position of B, loosen the screw 66 to make the fixed block 62 free, and then retighten the screw 66 at a desired position. For example, the tray pressing members 61A and 61B shown in FIG.
The solid line position is the position where the small tray is fixed by pressing it with the virtual line T1, and the virtual line position of the tray pressing members 61A and 61B is the position where the large tray is pressing with the virtual line T2. A thick member 71 having a predetermined thickness is fixed to the front edge of the main body board 70, and thick members 72 having the same thickness are fixed to both side edges. The gap between the ends of the thick member 71 and the ends of the thick member 72 on both sides is as shown in FIG.
A groove portion 73 with which a pull-out roller 80 as a pull-out member included in the transport mechanism 5 shown in FIG. 3 is engaged is formed. The groove 73 can come into contact with the front and rear portions of the pull-out roller 80, but the pull-up roller 80 is free in the up-down direction (so that the pull-out roller 80 does not hinder the raising and lowering of the mother board 4).

When the mother board 4 is stored in the magazine 3, the lock bars 33 engage with the engaging portions K on both sides of the front portion of the mother board 4.

As shown in FIGS. 1 to 4, the elevator 10 of the elevator mechanism 2 mounts the magazine 3 holding the mother board 4, and as shown in FIG.
A positioning lever 91, to which a positioning block 90 is fixed at its front end, is pivotally attached to the elevating table 10 via a bracket 92 for positioning. A toggle lever 94 is connected to the positioning lever 91 via links 93A and 93B. By pulling down the toggle lever 94 as shown by a virtual line TG in FIG. 1, the positioning lever 91 is rotated to a virtual line position for positioning. It can be released. Further, when the toggle lever 94 is set to the position shown by the solid line in FIG. 1, the positioning lever 91 can be set upright and the positioning block 90 can be brought into a positioning state where it abuts on the magazine bottom plate 21. Further, as shown in FIG. 2, engagement members 95 that engage with the side portions of the bottom plate 21 of the magazine 3 are fixed at positions near both ends of the lift table 10. Positioning of the rear portion of the magazine 3 with respect to the lift table 10 is performed by bringing the positioning block 90 into contact with the magazine bottom plate 21, while positioning of the front portion of the magazine 3 is performed by contacting the stopper 10A fixed on the lift table 10 with the bottom plate 21. It is done by contact. At this time, the mother board lock release bar 96 fixedly attached to the lift 10 abuts on the lock release lever 40 of the magazine 3 to fully rotate the lock release lever 40 to the phantom line positions in FIGS. 7 and 8. To move. At this time, the gap between the pair of lock bars 33 on the magazine side is opened to unlock the mother board 4 so that the mother board 4 can be pulled out forward. However, as shown in FIGS. 1 and 2, the stopper 97 is fixed to the main body frame 1 and the front position of the stopper 97 is different from that of the mother board 4 which has the same height as the pull-out roller 80 and the guide rail 103 of the transport mechanism 5. It is regulated so that it will not be displaced.

The transfer mechanism 5 for pulling out the mother board 4 having a specific height from the magazine on the elevating table 10 and stopping it at the electronic component supply position F to the electronic component mounting machine 100 shown in FIG. A transport mechanism frame 102, which is horizontally fixed by a mounting bracket 101, is fixed to the frame 1, and a pair of guide rails 103 is fixed to the left and right of the frame 102. The pair of guide rails 103 is the magazine 3
Both edges of the mother board 4 pulled out from are slidably supported. Linear guides 104 are fixed to both outer sides of the frame 102, a slider 105 is slidably supported by the linear guides 104, and a pin 106 is fixed to the slider 105.
A pull-out roller 80 as a pull-out member is pivotally supported at the tip of the pin 106. Pulleys 110, 111, 112 are provided at front and rear positions on both outer sides of the frame 102.
Are fixed to the rotary shafts 113, 114, 115, and the rotary shafts 113, 114, 115 are rotatably supported by the frame 102. Each pulley 110,111,1
A timing belt 120 is stretched between 12 and
The lower part of the slider 105 is fixed to the timing belt 120. In addition, the rotary shaft 113 to which the pulley 110 is fixed penetrates to the left and right of the frame 102,
The movements of the left and right pulleys 110, 111, 112 and the left and right timing belts 120 are interlocked. The pulley 111 is for tensioning the timing belt 120.

A linear guide 130 is vertically fixed to the inside of the side surface of the main body frame 1, and a linear slider 131 is slidably supported by the linear guide 130 in the vertical direction. A rack 132 is vertically fixed to the linear slider 131, and the rack 132 is engaged with a pinion 133 fixed to a rotary shaft 115 coaxially with the pulley 112. A backup roller 134 is provided so as to come into contact with the back surface of the rack 132.

The linear slider 131 is driven up and down by a crank mechanism 140. That is, the crank mechanism 140 includes the pedestal 14 on the body frame.
1, a rotary shaft 143 supported by a bearing 142, a crank 144 fixed to the rotary shaft 143, and a crank 14
4 and a crank rod 145 connecting the linear slider 131. The crank rod 145 is a fulcrum P with respect to the crank 144 and the linear slider 131.
It is pivoted at 1, P2. A pulse motor 146 is fixed to the main body frame 1 side.
A pulley 147 fixed to the rotary shaft of the rotary shaft 46 and the rotary shaft 14;
Timing belt 149 between pulleys 148 fixed to 3
Is stretched.

Crank 144 of the crank mechanism 140
Is at the bottom dead center D1, the pull-out roller 80
Is in the most retracted position and is in a state of being able to engage with the mother board 4 in the magazine on the lift 10 (the groove 73
When the crank 144 rotates with the rotation of the pulse motor 146, the linear slider 131 is pushed up via the crank rod 145, and the rack 132 integrated therewith rises. As a result, in FIG.
The engaged pinion 133 rotates counterclockwise, the pulley 112 also rotates counterclockwise, and the upper side of the timing belt 120 runs leftward. Therefore, the slider 105 fixed to the upper side of the timing belt 120 moves forward as indicated by the arrow Q1, and the pull-out roller 80 attached to the slider 105 side also moves forward. Then, when the crank 144 reaches the top dead center D2, the pull-out roller 80 is at the most advanced position, and the mother board 4 is pulled out along the guide rail 103 to the electronic component supply position F to the electronic component mounting machine 100. Becomes

As shown in FIG. 4, the crank mechanism 1
Rotation detecting disc 150 fixed to a rotary shaft 143 of 40
And the rotation detecting disc 15 fixed to the pedestal 141 side.
A set of rotation sensors 151 for detecting the rotation position of 0 is provided, and the mother board 4 detects the top dead center D2 and the bottom dead center D1 of the crank 144 and the mother board 4 stores the electronic parts at the storage position F or the magazine 3 storage position. Have confirmed that. Further, as shown in FIG. 1, a rotation detecting disc 160 fixed to the ball screw shaft 13 of the elevator mechanism 2 and a rotation sensor fixed to the support plate 11 side to detect the rotation position of the rotation detecting disc 160. 161 sets are provided,
The mother board 4 of each stage in the magazine 3 is the transfer mechanism 5
Of the pull-out roller 80 and the guide rail 10
It has been confirmed that they are stopped at the height positions of the lifting platform 10 which are at the same height as the motherboard supporting surface of 3.

The bottom of the transfer mechanism frame 102 is positioned and placed on the feeder table 240 of the electronic component mounting machine 100.

The operation of the above embodiment will be described below.

Each mother board 4 of a tray 210 in which electronic components 200 such as a predetermined surface mounting IC are arranged in a fixed positional relationship.
As shown in FIG. 10, the tray pressing member 61 is placed and fixed on the top.
This can be done by pressing the side surface of the tray 210 with the pressing parts 64 of A and 61B, and each motherboard 4 with the tray mounted is inserted into the guide groove 25 of each step of the magazine 3 with the back cover 24 opened. . Then, after inserting the motherboard 4 into the guide grooves 25 of each step, the lock knob 27 is operated to close the back cover 24 of the magazine 3. At this time, both sides of the front part of the mother board 4 are brought into contact with and positioned by a pair of lock bars 33 on the magazine side, and the rear part of the mother board 4 is brought into contact with the rear cover 24 and positioned so as not to shift in the front-rear direction.

The magazine 3 in which the mother board 4 is stored in each stage is placed on the lift 10 of the elevator mechanism 2. At that time, as shown in FIG. 2, the bottom plate 21 of the magazine 3 is fitted between the engaging members 95 on the lifting table side, and the positioning lever 91 is set with the toggle lever 94 of FIG. Upright, positioning block 9
0 is brought into contact with the bottom plate 21, and the rear part of the magazine 3 is positioned. The positioning of the front part of the magazine 3 is performed by the stopper 10A attached to the lift 10 of the elevator mechanism 2.
The bottom plate 21 is brought into contact with the bottom plate 21. At the same time that the magazine 3 is positioned on the lift table 10, the magazine-side lock release lever 40 is rotated so that the distance between the pair of lock bars 33 is wider than that of the motherboard 4, and the motherboard 4 is pulled out from the magazine 3. It becomes possible. However, the front surface of the mother board 4 is regulated by the stopper 97 inside the main body frame 1 so that the front surface of the mother board 4 is not displaced except for the mother board 4 having the same height as the guide rail 103.

The selection of the tray 210 on which the predetermined electronic component 200 designated by the mounting program is placed is guided by the elevating operation of the elevating table 10 of the elevator mechanism 2 to the specific mother board 4 on which the tray 210 is mounted and fixed. This is done by making the rail 103 at the same height as the motherboard supporting surface. At this time, the mounting program controls the pulse motor 17 that rotationally drives the ball screw shaft 13 that is screwed into the lift 10. As a result, as shown in FIG. 11, the pull-out roller 8 is inserted into the groove 73 of the specific motherboard 4.
0 is set.

After confirming the stoppage of the elevator mechanism 2, as shown in FIG. 12, the mother board 4 having the selected tray 210.
Is carried out to the electronic component supply position F and stopped. This operation is performed by rotating the crank 144 of the crank mechanism 140 from the bottom dead center D1 toward the top dead center D2. That is, when the crank 144 stopped at the bottom dead center D1 is rotated, the linear slider 131 and the rack 132 are gently lifted at the beginning due to the nature of the crank mechanism, and the intermediate position between the bottom dead center D1 and the top dead center D2 is reached. As the ascending speed reaches the maximum and the top dead center D2 is approached, the linear slider 131 and the rack 132 ascend slowly, and the crank 144 stops at the top dead center D2, so that the linear slider 131 and the rack 132 also stop. Such a linear movement of the rack 132 is converted into a rotational movement by the pinion 133 which meshes with the rack 132.
The pulley 112, which is coaxial with, rotates, and the timing belt 1
The upper side of 20 runs to the left in FIG. 1, and along with this, the pull-out roller 80 also linearly moves to the left, and the specific mother board 4 engaged in the groove 73 slides on the guide rail 103 to cause electronic It is pulled out to the component supply position F. At that time, the rack 1 is located near the crank bottom dead center D1 and the top dead center D2.
Since the linear motion of 32 is gentle, the rotation of the pinion 133 is also gentle in the vicinity of the crank bottom dead center D1 and the top dead center D2. Therefore, the drawing speed of the mother board 4 also becomes gentler at the beginning when it is drawn from the magazine 3 and when it approaches the electronic component supply position F, and in the drawing operation of the mother board 4, the electronic component 200 on the tray 210 is given an unnecessary impact and is displaced. There is no fear of causing.

The electronic component 200 on the tray is sucked and held by the mounting head 230 of the electronic component mounting machine 100 according to the mounting program from the tray 210 on the mother board 4 stopped at the electronic component supply position F in FIG.
Install them on the top one by one. At that time, since there are various types of heights of the tray 210, the height of the suction nozzle is controlled on the mounting head side to absorb the difference. After the electronic component 200 on the tray is sucked, if the electronic component 200 is detected to be defective (lead bending, etc.) by image processing, the electronic component 200 is ejected to the same location in the tray or to the defective component ejection location.

When the electronic component 200 on the tray 210 becomes empty, the crank 144 of the crank mechanism 140 is turned.
The motherboard 4 on which the empty tray is placed is pulled into the magazine 3 by the rotation from the top dead center D2 to the bottom dead center D1.

[0028]

As described above, according to the present invention,
It is possible to obtain an electronic component supply device in which it is easy to select a tray on which electronic components are arranged and which can smoothly perform the operation of pulling out the tray from the magazine.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of an electronic component supply device according to the present invention.

FIG. 2 is a front sectional view of a main part of the embodiment.

FIG. 3 is a plan sectional view of an example.

FIG. 4 is a plan sectional view showing a lower structure of the embodiment.

FIG. 5 is a front view of a magazine used in the embodiment.

FIG. 6 is a rear view of the same.

FIG. 7 is a plan view of the same.

8 is a sectional view taken along line VIII-VIII of FIG.

FIG. 9 is a side view of the magazine.

FIG. 10 is a plan view of a motherboard used in the example.

FIG. 11 is a sectional side view of the same main part.

FIG. 12 is a schematic plan view of an electronic component mounting machine using an electronic component supply device.

[Explanation of symbols]

 1 Main Frame 2 Elevator Mechanism 3 Magazine 4 Motherboard 5 Conveyance Mechanism 10 Lifting Table 20 Top Plate 21 Bottom Plate 22 Side Plate 23 Frame 24 Back Cover 25 Guide Groove 27 Lock Knob 33 Lock Bar 40 Lock Release Lever 61A, 61B Tray Presser 70 Main Body Board 80 Drawer Roller 100 Electronic Component Mounting Machine 102 Transport Mechanism Frame 103 Guide Rail 130 Linear Guide 131 Linear Slider 132 Rack 140 Crank Mechanism 144 Crank 145 Crank Rod 200 Electronic Component 210 Tray

Claims (3)

[Claims] 1. An elevator mechanism having a mother board for holding a tray on which electronic components are mounted, a magazine for supporting a plurality of mother boards in a multi-tiered state at a fixed interval so as to be freely drawn out, and a lift table on which the magazines are mounted. And a transport mechanism that pulls out a motherboard positioned at a specific height by the lifting operation of the elevator mechanism from the magazine to a front electronic component supply position, wherein the transport mechanism slides on the motherboard. An electronic component supply device comprising: a guide rail that is freely supported; and a drawer member that moves along the guide rail, and the motherboard has a groove portion that engages with the drawer member. 2. A slider is slidably supported by a linear guide fixed to a frame of the transport mechanism, the pullout member is attached to the slider, and the slider is moved from a first stop position by a crank mechanism. The electronic component supply device according to claim 1, wherein the electronic component supply device is driven so as to start moving gently and then stop gently at the second stop position. 3. A winding member is stretched laterally freely by a plurality of pulleys pivotally supported by a frame of the carrying mechanism, and the slider is fixed to the winding member and driven by the crank mechanism. 3. The pulley is rotationally driven by the rotation of a pinion that engages with a rack that reciprocates by means of rotation.
Electronic component supply device described.