JPH05293447A - Electronic part sorting apparatus - Google Patents

Abstract

PURPOSE:To sort electronic parts into a plurality of stages corresponding to the characteristics threreof and to efficiently perform the feed of the electronic parts subjected to sorting within a short time. CONSTITUTION:A measuring terminal 204 measuring the characteristics of electronic parts is provided to the feed route of an inspection part 2 rotating and feeding the electronic parts. A supply stocker 1a supplying electronic parts and receiving stockers 1b, 1c, 1d provided by stages after sorting are arranged on one ends of the hands of the inspection part 2 and the delivery distances between the inspection part 2 and the supply stocker 1a/the receiving stockers 1b-1d can be set to the shortest distances to deliver the electronic parts within a short time. Respective sorting stages are predetetermined corresponding to the number of the receiving stockers 1b-1d after sorting by a measuring device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component sorting apparatus capable of sorting electronic components in stages according to their electrical characteristics.

[0002]

2. Description of the Related Art FIG. 20 is a plan view showing a conventional electronic component sorting apparatus. The electronic components are housed in the supply unit 50,
The transfer units 51 are transferred one by one to the rotary transfer unit 52.
In the rotary transport unit 52, a plurality of arms 5 provided around
2a grabs each electronic component and conveys it by rotation. An inspection unit 53 is provided on the conveyance direction, and the inspection unit 53 measures the electrical characteristics (for example, frequency characteristics) of each electronic component. After the measurement, the electronic components are returned to the rotary transport unit 52 again.
Thus, it is rotatably conveyed to the sorting mechanism 54. The sorting mechanism 54 sorts the electronic components according to a plurality of predetermined stages (for example, best, good, non-separate) according to the measurement result of the electronic components. Therefore, the sorting mechanism 54 transports the electronic component to any of the first to third recovery transporting units 55a to 55c for each stage of the electronic component. Recovery and transport section 55a-55
c is a collection unit 56a to 56 for collecting the supplied electronic components.
It is sequentially conveyed to c. Thereby, the collecting units 56a to 56c
The electronic components, which are graded according to their characteristics, will be housed in each.

[0003]

However, in the conventional electronic component sorting apparatus, since the sorting mechanism 54 is configured to supply the electronic components to the plurality of collecting / conveying units 55a to 55c, the operation of the sorting mechanism 54 will be described. It took a long time to process, and it took a long time to process the selection as a whole.
That is, since the sorting mechanism 54 is configured to receive the electronic components one by one from the rotary transport unit 52 and transport the electronic components to any of the recovery transport units 55a to 55c, the reciprocating operation is repeated for each transport of each electronic component. , It took a long time to carry. That is, the transport speed of the sorting mechanism 54 is slower than the transport speed of the rotary transport unit 52, and the rotary transport unit 52 is always waiting for the operation of the sorting mechanism 54.

The present invention has been made in view of the above problems, and provides an electronic component sorting apparatus capable of carrying electronic components at a high speed and sorting each electronic component in a short time. The purpose is to

[0005]

In order to achieve the above object, an electronic component sorting apparatus of the present invention is an electronic component sorting apparatus for sorting electronic components W in a plurality of stages according to electrical characteristics. Supply stocker 1a containing parts W
In order to measure the electrical characteristics of the electronic component W supplied from the supply stocker 1a, the electronic component W is fixed at a predetermined angle and a plurality of hands 220 are rotatably conveyed, and the plurality of hands 220 are provided in the rotational conveyance path. The inspection unit 2 having the measurement terminal 204 for measuring the electronic component W and the measurement terminal 204 of the inspection unit 2 for measuring the characteristics of the electronic component and performing a plurality of stages of selection based on the measurement result. A plurality of storage stockers 1b are arranged on one end of the hand 220 of the inspecting unit 2, each of which has a device 227 and a number corresponding to the sorting step by the measuring device 227, and stores the measured electronic components W in stages. .About.1d are provided.

[0006]

The electronic component W before measurement is accommodated in the supply stocker 1a and supplied to the inspection unit 2. In the inspection unit 2, the electronic component W is rotated and transported, and the electronic component W is measured by the measurement terminal 204 provided in the transport path. The measurement result is sorted by the measuring device 227 into a plurality of stages. The inspection unit 2 supplies the electronic component W to any of the storage stockers 1b to 1d corresponding to this stage. Each storage stocker 1b ~
The electronic component W for each stage is housed in 1d. The supply stocker 1a and the storage stockers 1b to 1d are electronic parts W.
Since the configuration is arranged on one end of the hand 220 of the inspection unit 2 that rotates and conveys, the sorting can be performed step by step during the rotation and transport of the electronic component W, and thus the sorting time is short and efficient sorting work is automatically performed. be able to.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a plan view showing an electronic component sorting apparatus of the present invention. In the figure, 1 is a stocker in which an electronic component W is stored, 2 is an inspection unit for the electronic component W, and 3 is a feeder. The electronic components W are respectively accommodated in the recesses 44 provided in the magazine 43 shown in FIG. The electronic component W is taken out from the supply stocker 1a that stores a plurality of the magazines 43, and is sent to the inspection unit 2 in the direction a in the drawing for inspection by the feeding device 3a. The electronic component W conveyed in the b direction by the inspection unit 2 is sorted according to the inspection result in stages, and the second to fourth feeding devices 3b to 3d.
The storage stockers 1b to 1c to 3
It is transported to 1d and stored.

The electronic component sorting apparatus is provided with a supply stocker 1a provided substantially radially from the inspection section 2 provided at the center, storage stockers 1b to 1d, and feeding devices 3a to 3d provided in pairs with the stockers. As shown in FIG. 1, each of the storage stockers 1b to 1d has a hand 22.
Corresponding to an arrangement pitch of 0, they are arranged at equal angles of 45 degrees.

Next, each component will be described in detail. First,
The configuration of the stocker 1a on the side for sending out the stored electronic components W will be described. As shown in FIGS. 2 and 3, the frame 4 of the present device 1a has a box shape in which a pair of side plates 5 and 6 are connected by a top plate 7 and a bottom plate 8, respectively. A rotary shaft 10 is provided between the side plates 5 and 6 of the frame 4 via a bearing 9. Discs 11 and 12 are fixed to both ends of the rotary shaft 10 near the inner surfaces of the side plates 5 and 6, respectively. A plurality of rails 13, which are cylindrical storage members, are attached between the pair of discs 11 and 12 to form a storage drum 14. As shown in FIG. 4, the rail 13 has an electronic component W.
Is a member for accommodating the magazine 43 accommodating the magazine, and has a groove 17 for taking out the accommodated magazine 43 to the outside.
These rails 13 are fixed between the discs 11 and 12 in parallel with the rotating shaft 10 at predetermined intervals so as to form a cylindrical outer peripheral surface along the outer peripheries of the discs 11 and 12. ..

As shown in FIG. 2, a driving device 20 and a position fixing device 21 are provided on the outer surface of one side plate 6 of the frame 4 as a positioning mechanism for the storage drum 14. The motor 22 of the drive device 20 is interlocked with the rotary shaft 10 via a speed reducer 23, and can rotate the storage drum 14 at an arbitrary angle.

The position fixing device 21 has a cylinder 24 and a pin 25 interlocking with the cylinder 24. Further, as shown in FIG. 3, a ring-shaped receiving member 26 is provided on the disc 12 in a circumferential shape corresponding to the position of each rail 13. A hole is provided in the side plate 6 between the disc 12 and the pin 25, and the pin 25 projecting toward the disc 12 is inserted into the receiving member 26 by the cylinder 24 to position the storage drum 14. Is fixed correctly. The receiving member 26 is made of a material that slips easily with respect to the pin 25, and its inlet side is tapered so that the pin 25 can be inserted without resistance.

The side plates 5 and 6 above the storage drum 14 are provided with openings 27 and 28, respectively. The bracket 2 is provided outside the opening 28 of the one side plate 6.
9 is attached. Further, three guide bars 30 are provided between the other side plate 5 and the bracket 29.
A cylinder 31 is movably provided on the guide rod 30 as a means for taking out the electronic component W. As shown in FIG. 5, an operating portion 32 is attached to this cylinder 31. The operation portion 32 has a base portion 35 guided by the two guide rods 33 and 34, and an operation plate 36 connected to the base portion 35. A shock absorbing spring 37 is interposed between the base portion 35 of the operation plate 36 and one guide rod 34, and the operation plate 36 that moves together with the cylinder 31 can move with respect to the cylinder 31.

The operation plate 36 is inserted into the groove 17 of the rail 13 which is set at the top of the storage drum 14. When the cylinder 31 is moved, the operation plate 36 moves in the rail 13, and the electronic component W is pushed out of the rail 13 leaving an empty magazine 16 in the rail 13. In FIG. 2, a bracket 38 is provided in the vicinity of the opening 27 provided in the side plate 5 on the side where the electronic component W is extruded, and the feeding device 3 for conveying the extruded component to the next process is installed. To be done.

Next, the feeding device 3 will be described.
FIG. 6 shows a magazine 43 of electronic parts W. The magazine 43 has an elongated bar plate shape, and recesses 44 for accommodating the electronic components W are formed at a predetermined pitch on the upper surface thereof. Detection holes 45 are formed on both sides of each recess 44 at a predetermined pitch.

From the first stocker 1a containing the magazine 43 containing the electronic parts W, the magazine 43 is sent to the inspection unit 2 by the feeder 3a, and the magazine 43 is sent.
The electronic component W inside is taken out and used for inspection. The empty magazine 43 is supplied by the feeder 3a to the stocker 1
returned to a. The inspected electronic parts W are stored in the stocker 1
The empty magazines 43 sent from b to 1d by the respective feeding devices 3b to 3d are sorted and stored according to the inspection result. Each magazine 4 that contains the tested electronic parts W
The feeding device 3 is returned to the storage stockers 1b to 1d by the feeding devices 3b to 3d.

As shown in FIGS. 7 to 9, a carry-in plate 112 is fixed above the rectangular board 110 in parallel with the board 110 via columns, and the magazine is mounted on the carry-in board 112. 43 carry-in paths 113 are set. Next to the carry-in plate 112, a carry-out plate 114 is fixed via a support plate 115 so as to be inclined at a predetermined angle with respect to the substrate 110 in a plane orthogonal to the longitudinal direction of the carry-in path 113. A carry-out path 116 is set on the carry-out plate 114 in parallel with the carry-in path 113.

A guide roller 117 for guiding the magazine 43 is provided on one side of the carry-in path 113. A belt drive unit 118 is provided on the other side of the carry-in path 113. Belt driving means 118
Has a motor 119 fixed to the carry-in plate 112, a drive pulley 120, a plurality of driven pulleys 121, and a drive belt 122. The magazine 43 inserted into the carry-in path 113 is sandwiched between the drive belt 122 and the guide roller 117, and is intermittently conveyed at an arbitrary pitch by driving the motor 119.

A stopper 124 which is vertically moved by a cylinder 123 is provided between the end of the carry-in passage 113 and the start of the carry-out passage 116.

Near the end of the carry-in path 113, a cylinder 125 is provided on the side opposite to the stopper 124 to stop the stopper 1.
A pusher 126 that is movable in 24 directions is provided. The magazine 43 conveyed near the end of the carry-in path 113 by the belt driving means 118 is
4 is pushed down, the pusher 126 pushes the carry-out path 116.
Are being moved to.

A groove 127 is formed in the carry-out path 116 along the longitudinal direction. Further, two guide bars 128 and 129 are provided on the substrate 110 in parallel with the carry-out path 116. A cylinder 130 as a carry-out means is movably provided on the one guide rod 128 below the groove 127. The cylinder 130 has an operation plate 13
1 is attached, and the upper end of the operation plate 131 projects upward from the groove 127. When the operation plate 131 pushes the magazine 43 and moves to a position shown by an imaginary line in FIG. 8, the magazine 43 projects out of the carry-out path 116, leaving a part of the rear end thereof.

A cylinder 132 as a carry-out means is movably provided on the other guide rod 129. The cylinder 132 is provided with an operation plate 134 that is vertically movable by a cylinder 133. This operation plate 134 is
It is possible to move between two positions shown by a solid line and an imaginary line in FIG. 8, and it is possible to avoid an interference with the operation plate 131 by moving up and down by the cylinder 133 to move in and out of the groove 127.

Further, as shown in FIG. 7, a sensor 140 for detecting the standby position of the magazine 43 is provided at the start end side of the carry-in path 113 at a position apart from the belt driving means 118. A sensor 141 for detecting the presence or absence of the magazine 43 is provided in the middle of the belt driving means 118. Further, two sensors 142 and 143 are provided side by side in the feed direction on the terminal end side of the carry-in path 113 so that the end of the pitch feed of the magazine 43 can be detected. Further, the carry-in path 11 is connected to the carry-out path 116.
Sensors 144 and 145 for detecting the presence or absence of the magazine 43 are respectively provided on the start side for receiving the magazine 43 from 3 and the end side for discharging the received magazine 43.

As shown in FIG. 10, the belt driving means 11
A photoelectric sensor 146 as pitch detecting means is obliquely provided above the driving pulley 120 of No. 8 so as to detect the detection hole of the magazine 43 in the transport path 113. The motor 119 of the belt driving means 118 is driven according to the output signal of the photoelectric sensor 146, and the detection hole 45
The magazine 43 is intermittently fed according to the pitch. Then, the detection hole 45 is detected by the photoelectric sensor 146.
Is detected as the operation position of the electronic component W, and the electronic device W is taken out of the magazine 43 by a handling device (not shown) or the inspected electronic component is stored in the magazine 43. ing.

Next, the inspection unit 2 will be described. The inspection unit 2 has a rotation station 202 that is rotatable in the direction B in FIG. 1, and the rotation station 202 is provided with a plurality of hands 220 around it. Figure 1
As shown in FIG. 3, the hand 220 holds the electronic components W conveyed by the feeding device 3a one by one, and b
Rotate and transport in the direction. During the transportation, the sandwiching state of the electronic component W is repositioned by the positioning mechanism 301 described later, and then the electronic component W is transported to the measuring unit 204 described later to measure the electrical characteristics of the electronic component W. Electronic component W after measurement
Is the feeding device 3b for each stage of selection by the hand 220.
It is conveyed to any position of 3d. Therefore, each of the feeding devices 3b to 3d is arranged so that the conveying direction thereof is radial around the rotation station 202.

In the rotating station 202, a rotating machine 202b at the bottom is used as a drive source and a rotor 202c at the upper side is rotatable. A plurality of slide bearings 223 are provided on the side of the rotor 202c corresponding to the hand 220 at predetermined angles. On the other hand, on the upper part of the rotation station 202, a disc-shaped mounting plate 221 fixed to the housing is provided. The cylinder 222 is provided at the edge of the mounting plate 221 at each of the predetermined angles.
Is fixed. In the cylinder 222, the rod 222a is extendable and contractible downward, and in the state of FIG. 13, the rod 222a is in a contracted state.

Each slide bearing 223 has a
The hand 220 is always biased upward and is provided so as to be movable in the vertical direction. The hand 220 has a slide bearing 22.
3 is attached to a substantially L-shaped support plate 210 fixed to the movable side. A cylindrical block base 211 is fixed to the support plate 210. The block base portion 211 has through holes 211a and 211b having a step inside the center thereof, and a cylindrical suction duct 212 is penetrated into the through hole 211a.

The suction duct 212 has an upper end 212a connected to an air suction source (not shown), and the nozzle 21 at the lower end.
The main body W1 of the electronic component W is sucked by 2b. A slide bearing 213 is provided between the suction duct 212 and the block base 211. In addition, the suction duct 21
The vicinity of the upper part of 2 is fixed to a horizontal plate member 217. One end of the plate member 217 is rotatably supported by a pin 218 provided upright on the support plate 210 so that the suction duct 212 is prevented from rotating. Further, at a substantially central portion of the suction duct 212, there is a flange portion 212c that abuts a lower edge 211c of the through hole 211a of the block base portion 211, and the slide bearing 213 and the flange portion 2 are provided.
A spring 214 is interposed between the 12c, so that the suction duct 212 is always biased downward with respect to the block base 211 and is vertically slidable.
A rubber cushion 215 is provided on the lower edge 211c and directly below the collar portion 212c.

In the lower half of the block base 211, a plurality of work retainers 216 are vertically slidable at four locations around the suction duct 212. The work retainer 216 has a predetermined length and is inserted into the groove portions 211c and 211d provided in the block base portion 211, respectively. The upper end of the work retainer 216 has groove portions 211c and 211c.
The flange 216a is engaged with the stepped portion of d, and the spring 217 is interposed in the groove 211c, so that the work retainer 216 is always biased downward. Here, the lower end 216b of the work retainer 216 is the suction duct 2
The length is set so as to be positioned above the nozzle 212b at the lower end of the predetermined height by a predetermined height. And this work clamp 21
6 is a total of 4 corresponding to the signal lead W2 portion of the electronic component W.
Two pieces are provided at a position corresponding to the ground lead W3.

Next, FIG. 14 is a perspective view showing the measuring terminal 204. On the upper part, a strip line 224 is provided, each of which has a signal line 224a extending in a straight line up to a central portion and a ground line 224b around the signal line 224a. Each line 224
a and 224b are connectors 225a and 225b at both ends.
It is connected to the. Then, with the hand 220,
The signal lead W1 of the electronic component W is placed on the signal line 224a, and the ground lead W2 is placed on the ground line 224b. In addition, the suction duct 212
The nozzle 212b at the lower end sucks the main body W1 of the electronic component W as shown in the drawing, and the signal lead W2 portion on the signal line 224a is pressed from above by the work clamps 216 at a total of four places, and the ground line 224b is grounded. The lead W3 part is
It is pressed from above by the work clamps 216 at two places in total.

As shown in the schematic view of the measuring device of FIG. 15, the connectors 225a and 225b are connected to the cable 22.
6 is connected to the terminal 227a of the measuring device 227 via 6 to measure the electrical characteristics of the electronic component W on the measuring terminal 204, such as frequency characteristics.

Next, the inspection unit 2 is provided with FIGS.
A positioning mechanism 301 shown in FIG. FIG. 23 is a partial cross-sectional front view of the positioning mechanism. As shown in FIG. 1, the position of the positioning mechanism 301 is determined by the inspection unit 2
In the upper part, it is located on the movement trajectory of the hand 220 between the feeding device 3a and the measuring terminal 204. This positioning mechanism 301, as shown in FIG.
The claw member 311, the movable base 317, and the actuator 309 serving as a driving unit are included. First, the base 302 is composed of an upper base 303 and a lower base 304, which are connected by a plurality of vertical columns 305. Pedestal 3
Reference numeral 04 is formed in a rectangular plate shape, as shown in FIG. 18, mounting fixing holes 306 are provided at four corners, and two vertical adjusting shafts 307 are provided upright near the center. The adjustment shaft 307 is provided so that the amount of protrusion in the vertical direction can be finely adjusted.
The mounting plate 30 is attached to each tip of the adjusting shaft 307.
8 is provided horizontally. An insertion hole is formed in the center of the mounting plate 308, and the actuator 309 is fixed to the lower surface. Actuating shaft 3 of this actuator 309
Reference numeral 10 penetrates the insertion hole and projects to the upper surface of the mounting plate 308. The actuator 309 is energized by being energized, and the operating shaft 310 is operated so as to project upward.

The upper base 303 is formed in a disk shape, and a claw member 311 is provided at the center of the upper base 303 so as to extend upward. A base end 312 of the claw member 311 is fixed to the upper base 303, and a tip 313 facing upward is separated and formed into four pieces, and a taper surface 314 is formed on an outer peripheral portion of the tip 313. The tips 313 are formed in a diameter-expanded shape that slightly expands in opposite directions. In addition, a notch 315 corresponding to the shape of the electronic component 325 described above is formed at each tip 313 of the claw member 311. The notch 315 is provided at the tip 313 of the claw member 311.
Is formed in a step shape on the upper end surface 313a, and the tip end 313b of the claw is notched in a curved shape. The notches of these claw members are configured to substantially match the outer shape of the electronic component 325 when the tips of the claws are brought close to each other and joined together. The claw member 311 is made of an elastic material. The upper base 303 has a pair of guide holes 3 vertically penetrating both sides of the claw member 311.
16 are formed.

Next, the movable table 317 is provided at the tip of the operating shaft 310 of the actuator 309. The movable table 317 is composed of an upper plate 318 and a lower plate 319. The plates 318 and 319 are connected by two guide shafts 320, and the lower surface center of the lower plate 319 is fixed to the operating shaft 310. There is. The guide shaft 320 is the upper base 30 of the base 302.
The compression coil spring 321 is wound between the lower surface of the upper table 303 and the upper surface of the lower plate 319. The upper plate 318 of the movable table 317 is formed with a through hole 322 having a mortar-shaped inclined surface in the approximate center. The claw member 311 provided on the base 302 is inserted into the through hole 322.

Next, the operation of each component of the electronic component sorting apparatus having the above configuration will be described. Here, the stocker 1a stores the electronic components W before measurement, and sends the electronic components W one by one to the inspection unit 2 by the feeding device 3a. The electronic components W that have been inspected by the inspection unit 2 are sorted into three stages by the measuring device 227 according to their electrical characteristics, and the hand 220 supplies the electronic components W to any of the feeding devices 3b to 3d. .. The feeders 3b to 3d are stockers 1b to 1 respectively.
The electronic component W after selection is sent to d.

First, the operation of the stocker 1 will be described.
First of all, the magazine 43 in which the electronic component W is stored is set on the rail 1
Store in 3. Then, in response to a command from the inspection unit or the like of the electronic component W, the rail 13 in which the desired component is stored is positioned at the top of the storage drum 14 which is the extraction position.
First, the storage drum 14 is rotated by a required angle by the motor 22 to perform almost accurate positioning, and then the cylinder 2
The pin 25 is inserted into the receiving member 26 at 4. This allows
The storage drum 14 is accurately positioned at a desired position.

Next, the cylinder 31 is activated and the rail 13
The operation plate 36 is inserted from one of the open ends. Rail 13
The inner magazine 43 is pushed by the operation plate 36 and pushed out from the other open end of the rail 13. Extruded magazine 43
Is conveyed to the inspection unit 2 by the feeding device 3.

Next, the operation of each feeding device 3 will be described with reference to FIGS. 7, 11 and 12. The magazine 43 waiting at the position of the sensor 140 is pushed into the carry-in path 113 by the driving means on the stocker 1 side. Sensor 141
The belt driving means 118 is operated by the signal of. The photoelectric sensor 146 makes the first detection hole 4 of the tip of the magazine 43.
When 5 is detected, the motor 119 is stopped and the first electronic component W set at the operation position is taken out by a handling device (not shown) and brought into the inspection section. After that, the photoelectric sensor 14
The belt driving means 118 intermittently conveys the magazine 43 at a predetermined pitch by using the detection signal of the detection hole 45 by the sensor 6. Then, the electronic components W set in the operation position are taken out one after another.

Then, the final detection hole 45 at the rear end of the magazine 43 is detected and the electronic component W is taken out. Here, when the sensor 142 detects the front end of the magazine 43, the succeeding magazine 43 waiting by the sensor 140.
a enters into the carry-in passage 113 at a predetermined timing.

Next, when the constant pitch feed of the succeeding magazine 43a starts, the preceding empty magazine 43 is pushed by the succeeding magazine 43a, and the sensor 143 detects this.

Further, as shown in FIG. 11, when the sensors 142 and 143 are turned on, the cylinder 123 is operated and the stopper 124 is lowered, and further the cylinder 125 is operated and the pusher 126 causes the magazine 43 to be carried out to the carry-out path 116. To move.

As shown in FIG. 11, when the sensor 144 detects the magazine 43, the cylinder 130 operates. Next, as shown in FIG. 12, the magazine 43 has the operation plate 131.
Is carried to the end of the carry-out path 116 as shown. At this time, the other operation plate 134 is lower than the groove 127 and does not contact the operation plate 131 and the magazine 43.

Next, when the sensor 145 detects the magazine 43, the cylinder 133 operates and the other operation plate 134 is operated.
Project upward from the groove 127, and the other cylinder 1
32 is activated. The magazine 43 is the other operation plate 13
4 is pushed out from the carry-out path 116 and returned to the stocker 1.

As shown in FIG. 9, the carrying surfaces of the carry-in path 113 and the carry-out path 116, which are parallel to each other, are inclined to each other. This has a structure in which the stocker 1 is provided with a rail 13 as an accommodating portion along the outer periphery of the drum 14 along the axial direction, and between the rail 13 and the carry-in / carry-out paths 113 and 116 which are parallel to each other. This is because the magazine 43 can be put in and taken out. That is, the carry-in path 113 and the carry-out path 1
The angle between 16 is set according to the central angle between the adjacent rails 13 and 13 in the drum 14 of the stocker 1.

Next, the operation of the inspection unit 2 will be described. The electronic component W supplied from the feeding device 3 a is sucked and held by the hand 220, and is rotated by the rotating machine 2 of the rotating station 202.
02b is driven and the rotor 202c is rotated, so that it is transported to the upper position of the measurement terminal 204. This state is shown in FIG. 13, and the suction duct 21
2 The main body portion W1 of the electronic component W is attached to the nozzle 212b at the lower end.
Is adsorbed. After this, the measurement terminal 204
When the cylinder 222 in the upper position operates, the rod 222
a slides the support plate 210 downward. As a result, the suction duct 212 is first connected to the main body portion W1 of the electronic component W.
A spring 214 at a predetermined position in the center of the measuring terminal 204.
It has the elasticity of and presses. Even after this, the rod 222a projects downward by a predetermined length, and as shown in the operation diagram of FIG. 16, the work retainer 216 having a length shorter than the suction duct 212 subsequently connects the signal lead W2 and the ground lead W3 to the spring 2.
It has elasticity of 17 and presses it toward the signal line 224a and the earth line 224b. As a result, the leads W2 and W3 of the electronic component W are urged to the lines 224a and 224b, so that electrical measurement by the measuring device can be stably performed. Then, the measuring device 227 shown in FIG.
The electrical characteristics, such as frequency characteristics, of the electronic component W on the measurement terminal 204 are measured by this, and the electronic component W is sorted into three stages based on the measurement result.

After measuring the electrical characteristics of the electronic component W, the cylinder 222 returns and the rod 222a contracts, so that the work holder 216 first separates from the leads W2, W3. After that, as shown in FIG. 13, the electronic component W is rotated by the rotation station 202 while the main body W1 is adsorbed by the nozzle 212b of the suction duct 212, and any of the feeding devices 3b to 3d corresponding to each sorting stage is rotated. It is transported to that place. The suction duct 212 and the work retainer 216 are returned to the initial state shown in FIG. 13 by the restoring forces of the springs 214 and 217, respectively.

Before the measurement of the characteristics of the electronic component W by the measuring station 204, the hand 220 is positioned in advance by the positioning mechanism 301.
It is designed to be adsorbed at 0. Positioning mechanism 301
The operation of the hand 220 will be described below.
The electronic components W are taken out one by one from the magazine 43 of a.

Next, the hand 220 is rotated by the rotation station 2
02, it is rotated by a predetermined angle, and the positioning mechanism 301
Stop above. The hand 220 places the electronic component W in the cutout portion 315 formed in the claw member 311 of the positioning mechanism 301. At this time, the four leads W2 and W3 provided on the electronic component W are placed so as to be positioned between the tips 313 of the claw members 311.

The positioning mechanism 301 includes the actuator 3
09 is actuated, the actuating shaft 310 is projected upward, and the movable table 317 is raised. The movable table 317 has a guide shaft 32.
By 0, it moves upward while maintaining parallel to the base 302, and moves upward along the claw member 311.
Then, the movable base 317 reduces the diameter of the claw member 311 by the through hole 322 in the center, and the tip 313 of the claw member 311 is reduced.
Bring the four claws of the two closer together. And this claw member 3
11 The position of the electronic component W placed on the tip 313 is corrected. The correction of the position of the electronic component W is performed especially in the electronic component W.
The leads W2, W3 are corrected in the correct direction.

After the position of the electronic component W is corrected, the hand 220 again suction-holds the electronic component W and transfers it to the measuring station 204 described above. As described above, by correcting the directions of the leads W2 and W3 of the electronic component W, the leads W2 and W3 are surely brought into contact with the lines 224a and 224b on the measurement station 204.

As described above, the flow of each electronic component W is shown in the flow chart of FIG. 19, but a pre-operation for accommodating the electronic component W in the magazine 43 for pre-measurement in the stocker 1a is performed. After that, each operation of the transition SP2 to SP9 is performed, and each electronic component W is transferred to the stocker 1b for each stage.
~ 1d will be accommodated. In addition to SP3 and SP6, the holding operation of the hand 220 is performed by a pair of operations such as suction holding and detaching and placing at the positions of the respective components, and the description thereof is omitted in the drawing. Since the inspection unit 2 is provided with a plurality of hands 220 for every 45 degrees, a plurality of processing flows of SP2 to SP9 are operating in parallel and are efficiently performed. Further, the hand 220 supplies the electronic component W to any of the stockers 1b to 1d during one rotation in the B direction shown in FIG. 1, so that an efficient sorting operation can be performed.

[0051]

According to the present invention, since the measuring terminal is provided in the middle of the rotary conveyance path of the inspection section, and the stocker is provided in plural stages radially to the rotation conveyance path, the inspection section It takes no time to deliver the electronic components to the stocker, the transport route and the transport time can be shortened, and efficient sorting can be automatically performed.

[Brief description of drawings]

FIG. 1 is a plan view showing an electronic component sorting device of the present invention.

FIG. 2 is a front view showing a stocker.

FIG. 3 is a right side view of the stocker.

FIG. 4 is a perspective view showing a stocker and a magazine.

FIG. 5 is a partially enlarged view showing a mechanism for pushing out a magazine.

FIG. 6 is a plan view showing a magazine and electronic components.

FIG. 7 is a plan view showing a feeding device.

FIG. 8 is a side view of the feeding device.

FIG. 9 is a front view of the feeding device.

FIG. 10 is a cross-sectional view of the feeding device taken along the line AA shown in FIG. 7.

FIG. 11 is a diagram showing an operation of the feeding device.

FIG. 12 is a view showing an operation of the feeding device.

FIG. 13 is a side sectional view showing an inspection unit.

FIG. 14 is a perspective view showing a measurement terminal.

FIG. 15 is a schematic diagram of a measuring device.

FIG. 16 is a diagram showing the operation of the inspection unit.

FIG. 17 is a partially cut front view showing a positioning mechanism.

FIG. 18 is a plan view of the positioning mechanism.

FIG. 19 is a flowchart showing an operational sequence of the electronic component sorting apparatus.

FIG. 20 is a plan view showing a conventional electronic component sorting apparatus.

[Explanation of symbols]

1a ... Supply stocker, 1b-1d ... Storage stocker, 2 ...
Inspection unit, 3 (3a to 3d) ... Feeding device, 301 ... Positioning mechanism, 204 ... Measuring station, 43 ... Magazine,
W ... Electronic component, 220 ... Hand, 227 ... Measuring device.

Claims (1)

[Claims] 1. An electronic component sorting apparatus for sorting electronic components (W) in a plurality of stages according to electric characteristics, and a supply stocker (1a) for storing electronic components before measurement and a supply stocker for supplying the electronic components. In order to measure the electrical characteristics of the electronic component, a plurality of hands (220) for fixing the electronic component at a predetermined angle and rotating and transporting it, and a measuring terminal for measuring the electronic component (provided in the rotary transport path ( 20
And a measuring device (227) which is connected to a measuring terminal of the measuring part and which measures characteristics of electronic parts and performs a plurality of stages of selection based on the measurement result, and the measuring device. A plurality of storage stockers (1b to 1) are arranged on one end of the hand of the inspection unit to store the electronic components after the measurement, each of which corresponds to the sorting step by the.
d) An electronic component sorting device comprising: