JPH03162310A - Device for aligning polarity of chip-like electronic parts - Google Patents

Abstract

PURPOSE:To improve the work efficiency of a device for aligning polarity of chip-like electronic parts such as diodes by providing suction holding devices rotatably at equal spaces on the outer periphery of a rotor adapted to intermittently turn on a vertical shaft, and measuring the polarity during the intermittent rotation of the rotor, and turning the holding devices if the polarity is reverse. CONSTITUTION:Holding devices 10 are intermittently rotated with a rotor 4 on a rotary shaft, and a vacuum generator is driven to supply parts from a supply portion 50c of a supply apparatus 50. In this arrangement, the parts are sucked and held by the holding devices 10 and moved towards a polarity measuring device 51 within a range of a designated angle by the intermittent rotation of the rotor 4. The polarities of the parts are measured by the polarity measuring device 51. As a result, if the polarity is reverse, the holding devices 10 are turned 180-degree by a polarity correcting device 52 to correct the polarities of the parts.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a polarity alignment device for chip-shaped electronic components used to align the polarities of chip-shaped electronic components such as diodes and transistors in a fixed direction.

BACKGROUND OF THE INVENTION Recently, a chip-shaped diode D as shown in FIG. 9 has been used. In this chip-shaped diode D, the inner ends of a pair of leads d1 are connected by a semiconductor element (not shown), and a synthetic resin base d2 is molded to cover the inner ends of each lead d1 and the semiconductor element. has been done. Each lead d] has its base side bent along the end surface of the base body d2, and its front end bent into a notch d3 of the base body d2 to form a rectangular shape. Before measuring the characteristics of such chip-shaped diodes D, it is necessary to align them so that their polar directions are aligned in a certain direction.

Conventionally, a configuration as shown in FIG. 10 is known as a polarity alignment device for aligning the polarity of the chip-shaped diode D in a certain direction. As shown in FIG. 10, a measuring wheel 2 is attached to a vertical shaft 201 directly connected to a motor (not shown).
02 is attached. A plurality of shallow storage grooves 203 are formed at equal intervals on the outer periphery of the measuring wheel 202 for storing the chip-shaped diode D so that the tip side of the lead dz is exposed upward. A suction hole 204 is formed in the vertical direction. There is a measuring wheel 202 on the lower side of the outer periphery of the measuring wheel 202.
A suction disc 205 is provided at a fixed position so that the measuring wheel 202 can slide in close contact with each other.A suction disc 205 has an arc-shaped suction groove 206. Each suction hole 204 is communicated with each other within a certain angular range. A suction pipe 20 is installed in the suction groove 206.
One end of the suction tube 207 is connected to the suction tube 207, and the other end of the suction tube 207 is connected to a vacuum generator (not shown). Measuring wheel 202
A polarity measuring device (not shown) is provided on the outer periphery of the device to measure the polarity by contacting the pair of leads d1 of the chip-shaped diode D above where the suction hole 204 connects to the suction groove 206. There is. At the outer periphery of the measuring wheel 202, on the downstream side of the polarity measuring device and at the suction hole 2.
A suction head 208 is provided above the position where 04 is removed from the suction groove 206, and a suction hole 209 penetrated through the center communicates with a vacuum generator (not shown). This suction head 208 is first lowered, then raised, by a drive device (not shown) based on a command from the polarity measuring device.
It is then configured to rotate 180 degrees, then descend, and then ascend.

The operation of the above configuration will be described below.

The measurement wheel 202 is rotated intermittently by driving the motor, and during this rotation, the chip-shaped diodes D are sequentially supplied into the storage groove 203 by a supply device 7 (not shown). The chip-shaped diode D supplied into the storage groove 203 is driven by the vacuum generator to the suction tube 20? , suction grooves 206, and suction holes 204 to maintain the suction state. The polarity direction of this suction-held chip-shaped diode D is measured by a polarity measuring device as it is intermittently transferred. After the measurement, the chip-shaped diode D is intermittently transferred to the position of the suction head 208. However, if the measurement result shows that the polarity direction of the chip-shaped diode D is in the normal direction, the suction head 208 does not descend and the chip-shaped diode D is moved intermittently to the position of the suction head 208. Diode D remains as is in suction head 20
Pass 8. On the other hand, when the polarity direction of the chip-shaped diode D is reversed, the suction head 208 is lowered as described above based on the command from the polarity measuring device, and the chip-shaped diode is D
is sucked and held by the suction head 208. Suction head 20
8 then ascends, rotates 180 degrees to correct the chip-shaped diode D to its normal orientation, and then descends again, and when the vacuum generator is stopped, the chip-shaped diode D is released and returned to the storage groove 203. The chip-shaped diode D whose polarity has been aligned in a certain direction in this manner is transferred to the next characteristic measurement step.

Problems to be Solved by the Invention However, in the conventional polarity alignment device described above, when the polarity direction of the chip-shaped diode D is reversed, the chip-shaped diode D is sucked and held by the suction head 208 and the measuring wheel 202 is moved. In order to raise it upward, and after raising it, turn it around and return it to the storage groove 203 of the measuring wheel 202.
This polarity direction correction work takes time, and the work efficiency of polarity alignment is poor. In addition, if the chip-shaped diode D is displaced in the radial direction of the measurement wheel 202 within the storage groove 203 of the measurement wheel 202, the chip-shaped diode D is held by the suction head 208 and lifted up, then rotated. If the chip diode D is returned to the storage groove 203 in this state, trouble may occur when transferring it to the next taping process, etc. D cannot be held in a secure suction state by the suction hole 204, and when the measuring wheel 202 rotates intermittently, the chip-shaped diode D may be shaken off and damaged, which is uneconomical. there were.

The present invention solves the problems of the prior art as described above, and can shorten the time required to correct the polarity direction of chip-shaped electronic components and improve the work efficiency of polarity alignment.
In addition, the polarity alignment work can be performed while the chip-shaped electronic components are securely held, and therefore, troubles in transferring to the next process can be prevented, and furthermore, the chip-shaped electronic components can be prevented from being shaken off. It is an object of the present invention to provide a polarity alignment device for chip-shaped electronic components that can perform the following steps.

Means for Solving the Problem The technical means of the zero invention for solving the above problem is a rotating body rotatably supported around a vertical axis, and a plurality of uniform locations on the outer circumference of the rotating body. a holding device that is rotatably supported around a vertical axis at a split position, has a suction head at its upper end that holds a chip-shaped electronic component in a suction state, and has a suction passage that communicates with the suction head at one end; A drive device that rotates the rotating body intermittently, a suction means with which the suction passage communicates with each other while the holding device is rotated intermittently within a predetermined angle range, and the holding device is sucked and held by a suction head of the holding device and is transferred intermittently. A polarity measuring device that measures the polarity direction by contacting the leads on both sides of the chip-shaped electronic component, and the polarity direction of the chip-shaped electronic component that is sucked and held by the suction head of the holding device and is intermittently transferred are opposite to each other. By receiving the command from the measuring device, the holding device is rotated 180 degrees around a vertical axis, and the polarity direction of the chip-shaped electronic component suctioned and held by the suction head of this holding device is normalized. It is equipped with a polarity correction device for correction.

The holding device includes a support tube attached to the lower surface of the outer periphery of the rotating body, a hollow shaft that is rotatably inserted through the rotating body and the support tube and has a suction hole in an intermediate portion, and an upwardly protruding portion of the hollow shaft. a suction head made of an insulating material, which has a holding groove at its tip for holding the chip-shaped diode, and has a suction hole in the center of the bottom of the holding groove that communicates with the hollow shaft; a rotating member fixed to the downward protrusion of the rotating member; an engaging means that engages the supporting river using the elasticity of a spring at a position where the rotating member is rotated 180 degrees; and a suction hole in the supporting tube. An annular groove formed to communicate with the outside is provided, and a suction passage can be formed by the annular groove, the hollow shaft having a suction hole, and the suction hole of the suction head. Further, the suction means includes a suction hole formed in the rotary body, a suction annular plate having a sliding surface with the rotary body on the lower side of the rotary body, and a suction annular plate having a suction hole formed in the rotary body, and a suction annular plate having a sliding surface on the underside of the rotary body. a suction groove that can communicate with the suction hole of the rotating body; a suction tube that communicates with the suction passage of the holding device and the suction hole of the rotary body; a suction tube that has one end communicating with the suction groove; It can be configured to include a vacuum generator connected to the other end of the tube. The polarity measuring device also includes a pair of terminal arms whose middle portions are swingably supported, a terminal attached to the tip of each terminal arm for contacting each lead of the chip diode, and each A spring that opens the base of the terminal arm and applies pressure in the direction of closing the terminal, and a claw member that protrudes from inside the intermediate portion of each terminal arm, and is supported so as to be movable up and down, and presses the claw member when lowered. The terminal arm is rotated so as to open the space between the terminals against the elasticity of the spring, the claw member is released by rising, and the terminal arm is rotated in the direction in which the space between the terminals is closed due to the rebound elasticity of the spring. It can be configured to include a pressing member for moving the pressing member, a driving means for moving the pressing member up and down, and a measuring device connected to each of the terminals.

Further, the polarity correction device is connected to a clutch member provided at the center of the lower end of the holding device, a motor supported so as to be movable up and down, and a motor shaft of this motor, and moves up together with the motor to connect to the clutch member. A club f member that is engaged and moves down together with the motor to be separated from the clutch member, and a drive means that moves the motor and the clutch member up and down in accordance with the intermittent transfer of the chip-shaped electronic component may be provided. can.

According to the present invention, the rotating body and the holding device are rotated intermittently, and during this period, first, the chip-shaped electronic component supplied to the suction head of the holding device is moved through the suction passage by the operation of the suction means. The chip-shaped electronic component is held in a suction state, and then the polarity direction of the chip-shaped electronic component that is suction-held by this suction head is measured by a polarity measuring device, and as a result of this measurement, if the polarity direction of the chip-shaped electronic component is reversed. In order to correct the polarity of the chip-shaped electronic component to the normal direction by rotating the chip-shaped electronic component suction-held by the suction head of the holding device by 180 degrees around a vertical axis using the polarity-correcting device, As a result of the measurement, if the polarity direction of the chip-shaped electronic component is normal, it is passed through the polarity correction device as it is.

In this way, the polarity direction can be corrected while the chip-shaped electronic component is suctioned and held by the suction head of the holding device, so the correction work time can be shortened, and the chip-shaped electronic component can be The polarity alignment work can be performed while being held securely.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.

1 to 8 show a polarity alignment device for chip-shaped electronic components according to an embodiment of the present invention, FIG. 1 is a schematic plan view of the whole, and FIG. 3 is an enlarged view of the section cut in the longitudinal direction; FIG. 3 is an external perspective view of the holding device;
4A and B are side and front views of the polarity measuring device, respectively, FIGS. 5A and B are perspective views of the front and rear sides of the main parts of the polarity measuring device, respectively, and FIG. 6A is the same as that of the first Fig. 6B is a partially cutaway right side view of Fig. 6A, and Fig. 7 is an enlarged view of Fig. 6A, partially cut in the longitudinal direction. , FIG. 8 is a perspective view of the grooved cam of FIGS. 6A and 6B.

In this embodiment, a case will be described in which the chip-shaped diodes D described in FIG. 9 are arranged with their polarities aligned in a certain direction.

As shown in FIGS. 1, 2, and 6A, a vertical rotating shaft 2 is rotatably supported by a bearing 3 on a pedestal 1. As shown in FIGS. A fitting hole 5 of a disc-shaped rotating body 4 is fitted into the upper end of the rotating shaft 2, and a small diameter and a large diameter are formed in the upper part of the rotating body 4 with a diameter larger than that of the fitting hole 5. The split pieces 7 and 8 of the fastening ring are inserted, and screws 9 are screwed into the rotating body 4 at multiple locations between the fastening rings 7 and 8, thereby fixing the rotating body 4 to the rotating shaft 2. .

A plurality of holding devices 10 are provided on the outer periphery of the rotating body 4 at evenly spaced positions. That is, as shown in FIG. 2, FIG. 3, and FIG.
A lateral protrusion 12 at the upper end of 1 is attached with a screw 13, and a hollow shaft 15 is inserted into the hole in the support tube 11 and the rotating body 4. , 17 for rotation about a vertical axis. A suction head 18 made of an insulating material such as synthetic resin or ceramic is attached to the upwardly protruding portion of the hollow shaft 15 so as to be replaceable with screws 19 .

The suction head 18 is attached to the base d2 so that the leads dl on both sides of the chip-like diode D are in series in the radial direction of the rotating body 4, and the tips of the leads d1 on both sides are located upward.
A suction hole 21 communicating with the hollow shaft 15 is formed at the center of the bottom of the holding groove 20. A rotating member 22 is fixed to the downward protruding portion of the hollow shaft 15, and a compression spring 24 is housed in a hole 23 recessed upward at 2fi positions of a 180 degree pitch on the outer circumference of the rotating member 22. Compression spring 24 at the upper open end
is compressed and a part of the sea bream balls 25 is inserted, and each sea bream ball 2
5 are engaged with spherical engagement recesses 27 formed at two locations with a 180 degree pitch on the outer circumference of the flange portion 26 at the lower end of the support tube 1l. Therefore, the hollow shaft 15, the suction head 18, etc. are positioned so as not to rotate freely with the suction head 18 holding the chip diode D as described above, and a forced rotational force is applied to the rotating member 22. Then, the steel ball 25 separates from the engagement recess 27 against the elasticity of the compression spring 24, and the hollow shaft 15, suction head 18, etc. rotate (reverse) 180 degrees from the above position, and after rotation, the steel ball 25 disengages again. is engaged with the engagement recess 27 by the elasticity of the compression spring 24 and held in the positioned state.

A sensor cam 28 for detecting the direction of the holding member 18 is attached to the lower end of the rotating member 22.
A clutch member 29 for rotation is provided protruding from the center of the lower end (see FIG. 7). A suction hole 30 is formed at one location in the middle of the hollow shaft l5, and a horizontal annular groove 31 communicating with the suction hole 30 is formed inside the support tube 11, and the upper and lower edges of the annular groove 31 A packing 32 is interposed between the hollow shaft 15 and the hollow shaft 15 for sealing. A hole 33 communicating with the annular groove 3l is formed in the support tube 11, and one end of a suction tube 34 is connected to this hole 33. A suction passage is formed by the hole 33, the annular groove 31, the hollow shaft 15 having the suction hole 30, and the suction hole 21. On the other hand, the rotating body 4 has an annular portion 35 integrally attached to the outer periphery of the bearing 3 on its lower surface with a screw 36, and a suction annular plate 37 moves only in the vertical direction with respect to the bearing 3 below the annular portion 35. The push-up book body 38 is supported on the underside of the suction annular plate 37.
is fixed to the bearing 3 by a screw 39. A compression spring 4 is provided between the suction annular plate 37 and the push-up cylinder 38.
0 is interposed, and the elasticity of the compression spring 40 pressurizes the suction annular plate 37 against the annular plate 35. The upper surface 41 of the annular suction plate 37 is made of synthetic resin so that the annular portion 35 of the rotating body 4 can easily slide thereon, and the space between the two can be kept airtight. A suction hole 42 is formed in the annular portion 35, and this suction hole 42 has a horizontal portion that is open to the outer circumference, and a vertical portion that communicates in a right angle direction at the inner end of the radial portion and is open to the lower end. The other end of the suction tube 34 is connected to the horizontal portion. A suction groove 43 is formed in an arc shape on the upper surface of the annular suction plate 37, and as the rotating body 4 and the holding device 1o rotate, the vertical portion of the suction hole 42 is communicated with the suction groove 43, or is connected to the suction groove 43. It comes off and faces the upper surface of the suction annular plate 37. A vertical suction hole 44 is formed in the suction annular plate 37 and communicates with the suction groove 43. One end of a suction tube 45 is connected to this suction hole 44, and the other end of the suction tube 45 is connected to a vacuum generator ( (not shown). Therefore, the vertical portion of the suction hole 42 is moved into the suction groove 43 by the drive of the vacuum generator.
The suction pipe 45 and the suction hole 44
, suction groove 43, suction hole 42, suction pipe 34, annular groove 31,
The chip-shaped diode D is attracted and held in the holding groove 20 through the suction hole 30, the hollow shaft go 5, and the suction hole 21.

A mounting plate 47 is attached to the lower end of the column 46 fixed to the frame 1.
is fixed, a joint 48 is mounted on the mounting plate 47, and the joint 48 is linked to the lower end of the rotating shaft 2. A rotating shaft 49 is rotatably supported by a support member (not shown) fixed to the pedestal l, and is linked to a mounting plate 47 via a cam (not shown) mounted on the rotating shaft 49. 49 is a motor (not shown) and a power transmission means (
(not shown). Then, by driving the motor, the rotating shaft 2, the rotating body 4, the holding device 10,
The annular plate 35 and the like are configured to be rotated intermittently.

As shown in FIG. 1, the chip-shaped diode D is supplied to the holding groove 20 of the suction head 18 of the holding device 10 sequentially from the upstream side to the downstream side during the intermittent rotation of the rotating body 4, the holding device 10, etc. A device 50, a polar measuring device 51 for a chip diode D held in an adsorbed state by the suction head 18 of the holding device 10, a polarity correction device 52 for correcting the chip diode D whose polarity direction is reversed to the normal orientation, DC forward voltage (Vp) of chip diode D after alignment
Measuring device 53, DC reverse current (III) measuring device 54 of chip diode D after polarity alignment, device 55 for discharging defective products, transfer for discharging non-defective products to chute 57 for supplying them to taping device 56 A device 58 and a device 59 for discharging the reversed product are arranged. and,
The suction groove 43 is connected to the measurement device 54 from the position of the supply device 50.
It is formed in an arc shape between the positions.

The supply device 50 is composed of a hopper 503, a feeder 50b, and a supply section 50c, and the chip-shaped diode D in the hopper 50a is connected to the supply section 50 through the feeder 50b.
c to the holding groove 20 of the suction head 18 of the holding device 10 with the leads dl on the image side aligned in series in the radial direction of the rotating body 4 and with the tips of the leads dl on both sides facing upward.

To explain the polarity measuring device 51, as shown in FIGS. 2, 4A, B, and 5A, B, a base 60 is fixed to the mount 1, and a support 61 is fixed to the base 6O. ing. The base of a bracket 62 is fixed to the upper end of the support 61. A downwardly curved portion is formed at a position near the tip of the bracket 62, and intermediate portions of each pair of terminal arms 63 are supported swingably about a shaft 64 at both base sides of this curved portion. Terminals 65 are attached to the inner side of the lower tip side of each terminal arm 63, facing each other, and claw members 66 are attached to the inner side of the middle part, and the upper surfaces of the claw members 66 on both sides follow the tip side. slanted downward. An adjusting member 67 consisting of a bolt and nut is attached to the base of one terminal arm 63 so that it can approach and separate from the other terminal arm 63. A compression spring 68 is interposed therebetween, and this compression spring 68 holds the terminals 65 on both sides in a closed position with a constant distance between them (see FIGS. 2 and 4B). Then, the claw members 66 on both sides are connected to the compression spring 6.
8, the terminal arms 63 on both sides are rotated, and the terminals 65 on both sides are opened (see FIG. 5A). On both sides of the tip side of the curved part of the bracket 62, there are stoppers 6 below the claw members 66 on both sides.
9 is provided in a protruding manner, and by abutting the claw member 66 against this stopper 69, the rotational position of the terminal arm 63, that is, the open position of the terminal 65 is regulated. An intermediate portion of a lever 70 is supported on the bifurcated upper end of the support column 61 so as to be able to swing around a shaft 71, and a bar-shaped pressing member 72 is provided at the tip of the lever 70 and projects horizontally within the curved portion of the bracket 62. It is set up. A support stand 73 is attached to the pedestal 1, and a solenoid 74 is supported on the support stand 73.

The lower end of a solenoid arm 76 is connected to the upper end of the solenoid shaft 75, and the upper end of the solenoid arm 76 is rotatably connected to the base of the lever 70 by a connecting member 77 made of a bearing, a screw, etc. to allow the base to swing. The solenoid shaft 75 is pressurized upward by a compression spring 78.

A support plate 79 is fixed to the upper end surface of the support column 61.
An adjusting member 80 consisting of a bolt and a nut is vertically attached to the end of the lever 9 on the side of the pressing member 72, and a compression spring 81 is interposed between the adjusting member 80 and the lever 70. Therefore, when the solenoid 74 is demagnetized, the solenoid shaft 75 and the solenoid arm 76 rise due to the elasticity of the compression springs 78 and 8l, and the tip side of the lever 70 is pressurized to rotate downward, and the pressing member 72
The claw member 66 is pressed and the terminal 65 is held in the open state as described above, and when the solenoid 74 is energized, the solenoid shaft 75 and the solenoid arm 76 resist the elasticity of the compression springs 78 and 81. At the same time, the tip end of the lever 70 is rotated upward, and the claw member 66 is released from the pressure by the pressing member 72, and the terminal 6 is moved as described above.
5 is configured to be held in a closed state. An adjustment member 82 consisting of a bolt and a nut is vertically attached to the support plate 79 on the opposite side of the adjustment member 80, and this adjustment member 82 abuts the base end of the lever 70 at the open position of the terminal 65, Its rotation is now regulated. Each terminal 65 is connected to a measuring device (not shown) via a cord 104.

To explain the polarity correction device 52, as shown in FIGS. 6A and 6B, a stay 83 is attached to the pedestal 1, and a mounting plate 8 of a pulse motor 85 is attached to a guide portion 84 of the stay 83.
A sliding portion 87 attached to 6 is fitted so as to be slidable in the vertical direction. The pulse motor 85 is driven by a command from the measuring device, and the base of a cylindrical support member 89 is fixed to the upper end of the motor shaft 88, and the clutch 29 of the holding device 10 and the clutch 29 of the holding device 10 are mounted inside the tip of the support member 89. The shaft portion of the base of the clutch member 90 (see FIG. 7) that engages is slidably fitted. A pin 91 is provided protruding from the base of the clutch member 90 in the orthogonal direction, and the pin 91 is inserted into a vertical notch 92 formed at the tip of the support member 89, so that the clutch member 90 is connected to the support member 89. It is supported so that it can only move up and down. A compression spring 93 for buffering is interposed between the motor shaft 88 and the clutch member 90 within the support member 89 . A sensor cam 94 is attached to the downward protrusion of the motor shaft 88, and the sensor cam 94 is attached to the attachment root 86.
An optical sensor 95 is attached so as to sandwich the outer peripheral portion of 4 from above and below. A rotating shaft 97 is rotatably supported by a pair of support members 96 attached to the pedestal 1, and a timing pulley 98 is attached to an end of the rotating shaft 97. There is also a timing pulley 99 on the rotating shaft 49.
are installed, and these timing pulleys 99, 98
A timing belt 100 is placed on the belt. Rotation @9
A grooved cam 101 shown in FIG. 8 is attached to the intermediate portion of the groove 7. The base of an arm 102 is attached to the mounting plate 86, a roller 103 is rotatably supported at the tip of the arm 102, and the roller 103 is engaged with the grooved cam IOI. The rotation shaft 97 and the grooved cam 101 are rotated by the drive of the motor via the rotation shaft 49, the timing pulley 99, the timing belt 100, and the timing pulley 98. The arm 102, the mounting plate 86, the pulse motor 85, the motor shaft 88, the support member 89, the clutch member 90, etc. are raised or lowered together by sliding of the sliding portion 87 against the guide portion 83. During the ascent, the clutch member 90 is engaged with the clutch member 29 of the holding device 10, and therefore, the pulse motor 85 drives the motor #+88, the support member 89, the clutch member 90,
Rotating member 22 of holding device 10 via 29, hollow shaft 15
, the suction head 18 and the like are rotated around the vertical axis, and at this time, the drive of the pulse motor 85 is stopped with the holding device 10 rotated 180 degrees by detection by the sensor cam 94 and the optical sensor 95. There is. Further, during the above-described descent, the clutch member 90 on the pulse motor 85 side is disengaged from the clutch member 29 of the holding device 10, and therefore, as described above, the rotating shaft 2, the rotating body 4, and the holding device 1
0 etc. is rotated intermittently.

The timing is set so that the pulse motor 85, clutch member 90, etc. are raised and lowered when the rotating body 4 and the holding device 10 are stopped.

The operation of the above configuration will be described below.

As described above, by driving the motor, the rotating shaft 49, the cam,
The rotating shaft 2, rotating body 4, holding device 10, etc. are intermittently rotated via the joint 48, etc., and the vacuum generator is driven. When the holding device 10 reaches the supply section 50c (see FIG. 1) of the supply device 50, the chip-shaped diode D is supplied from the supply section 50c to the holding groove 20 of the suction head 18 in the holding device 10 as described above. . At this time, the leads d+ on both sides of the chip diode D are connected to the rotating body 4.
The leads d1 are supplied in series in a radial direction, with the tips of the leads d1 on both sides facing upward. The chip-shaped diode D supplied to the holding groove 20 is driven by the vacuum generator, and the suction tube 45 and suction hole 44 shown in FIGS. 2 and 6A are
, suction groove 43, suction hole 42, suction pipe 34, annular groove 31,
The suction hole 30, the hollow shaft 15, and the suction hole 21 are used to maintain the suction state. The chip-shaped diode D held by suction is attached to the rotating shaft 2, the rotating body 4, and the holding device f as described above.
The polarity i1TIf constant device S1 shown in FIGS. 1, 2, 4A, B, and 5 ASB by intermittent rotation of fiE10 etc.
will be transferred to. During this time, since the suction hole 42 communicates with the suction groove 43, the chip-shaped diode D is held by suction in the holding groove 20 of the suction head 18 in the holding device 10.

In the polarity measuring device 51, as described above, the solenoid shaft 75 and the solenoid arm 76 are lowered by the excitation of the solenoid 74 against the elasticity of the compression springs 78 and 81.
The tip end of the lever 70 rotates upward, and the pressing member 72 releases the claw members 66 on both sides. Along with this, the terminal arms 63 on both sides rotate so that the terminals 65 at the tips close due to the repulsive elasticity of the compression springs 68, and the terminals 65 on both sides sandwich the sides of both leads dl of the chip-shaped diode D, and the measurement is performed. Measure the polarity using a device. After measurement, solenoid 7
4 is demagnetized, and as mentioned above, the solenoid shaft 75 and solenoid arm 76 rise due to the repulsive force of the compression springs 78 and 81, and the tip side of the lever 70 rotates to fall, causing the pressing member 72 to press the claws on both sides. Press member 66.

Accordingly, the terminal arms 63 on both sides rotate against the elasticity of the compression spring 68 so that the terminal 65 at the tip opens, releasing the chip-shaped diode D and waiting for the next measurement operation. The chip-shaped diode D released from the polarity measuring device 51 is rotated intermittently through the rotating shaft 2, the rotating body 4, the holding device 10, etc. as described above, and becomes the polarity correcting device shown in FIGS. 1 and 6A and B. 52. During this time, since the suction hole 42 communicates with the suction groove 43, the chip diode D
is held by suction in a holding groove 20 in a suction head 18 of a holding device 10.

In the polarity correction device 52, as described above, the pulse motor 85,
The motor shaft 88, the eight support members, the clutch member 90, etc. are raised, and the clutch member 90 is engaged with the clutch member 29 of the holding device 10. Here, when a command from the measuring instrument indicates that the polarity direction of the chip diode D is reversed as a result of the measurement, the pulse motor 85 is driven, and the motor shaft 88, the support member 89, and the clutch are moved as described above. member 90
．． Rotating member 22 of holding device 10 via 29, hollow shaft 1
5. The chip-shaped diode D, etc., which is suction-held in the suction head 18 and its holding groove 20, rotates 180 degrees around the vertical axis due to the detachment of the steel ball 25 from the engagement recess 27 of the support tube 11.
The rotating member 22 of the holding device 1o, the hollow shaft 15,
The drive of the pulse motor 85 is stopped with the suction head 18 etc. rotated 180 degrees, and the rotating members 22, 22, etc. are rotated as described above.
The hollow shaft 15, suction head 18, etc. are supported by 1 liter of steel balls 25.
It is engaged with the engagement recess 27 and positioned. Therefore, the chip diode D is maintained with its polarity corrected to the normal direction. On the other hand, if the polarity direction of the chip diode D is normal as a result of the above measurement, the pulse motor 85 is not driven, so the chip diode D held by suction in the holding device 10 and its holding groove 20 is It is not rotated and is held in the same position as it was transferred. Thereafter, the rotation of the grooved cam 101 causes the pulse motor 85, the motor shaft 88, and the support member 8 to move as described above.
9, the clutch member 90 etc. is lowered, and this clutch member 9
0 is disengaged from the clutch member 29 of the holding device 10 and waits for the next polarity correction operation. The chip-shaped diode D whose polarity is aligned in this manner is connected to the rotating shaft 2, as described above.
The rotating body 4 and the holding device 10 are sequentially transferred by intermittent rotation, and during this time, the DC forward voltage (VF) is measured by the measuring device 53 (see FIG. 1), and then the measuring device 54
(See Figure 1) to measure the direct reverse current (.IR). After the measurement, the suction hole 42 is removed from the suction groove 43, and the chip-shaped diode D is released from the suction state to the holding groove 20 of the holding device 10 and is simply held in the stored state.

After that, as described above, the rotating shaft 2, rotating body 4, holding device 1
During this time, if the chip diode D is a defective product, it is discharged to the outside by a discharge device 55, and if it is a good product, it is placed on a chute 57 by a transfer device 58 and taped. It is supplied to the device 56, and if the front and back sides are reversed, it is discharged to the outside by the discharge device 59.

Thereafter, the above-mentioned operation is repeated to sequentially perform the polarity alignment work of the chip-shaped diode D, etc.

Effects of the Invention As described above, according to the present invention, the rotating body and the holding device are rotated intermittently, and during this period, first, the chip-shaped electronic component supplied to the suction head of the holding device is sucked into the suction passage by the operation of the suction means. Then, the polarity direction of the chip-shaped electronic component suctioned and held by this suction head is measured by a polarity measuring device, and as a result of this measurement,
If the polarity direction of the chip-shaped electronic component is reversed, the chip-shaped electronic component held by the suction head of the holding device is rotated 180 degrees around the vertical axis by the polarity correcting device. The polarity direction of the component is corrected to the normal direction, and if the above measurement results show that the polarity direction of the chip-shaped electronic component is normal, the chip-shaped electronic component is allowed to pass through the polarity correction device as is. In this way, the polarity direction can be corrected while the chip-shaped electronic component is suctioned and held by the suction head of the holding device, so the correction work time can be shortened, and the work efficiency of polar alignment can be improved. In addition, it is possible to perform polar alignment work while reliably holding chip-shaped electronic components, thereby preventing troubles in transferring them to the next process. prevents shaking off,
That damage can be prevented.

[Brief explanation of the drawing]

1 to 8 show a polarity alignment device for chip-shaped electronic components according to an embodiment of the present invention, FIG. 1 is a schematic plan view of the whole, and FIG. 3 is an enlarged view of the section cut in the longitudinal direction; FIG. 3 is an external perspective view of the holding device;
4A and B are side and front views of the polarity measuring device, respectively, FIGS. 5A and B are perspective views of the front and rear sides of the main parts of the polarity measuring device, respectively, and FIG. 6A is the same as that of the first Fig. 6B is a partially cutaway right side view of Fig. 6A, and Fig. 7 is an enlarged view of Fig. 6A, partially cut in the longitudinal direction. , FIG. 8 is a perspective view of the grooved cam of FIG. 6 ASB, FIG. 9 is a perspective view of a diode that is -INJ of a chip-shaped electronic component, and FIG. 10 is a conventional polarity alignment device for chip-shaped electronic components. FIG. 3 is a cross-sectional view of main parts. D...chip diode, d1...lead, d2
... Base body, 2 ... Rotating shaft, 4 ... Rotating body, 10.
... Holding device, 11... Support tube, 15... Hollow shaft,
18... Suction head, 20... Holding groove, 21...
Suction hole, 22... Rotating member, 29... Clutch member, 30... Suction hole, 31... Annular groove, 34... Suction pipe, 37... Annular plate for suction, 42...・Suction hole, 4
3... Suction groove, 45... Suction pipe, 5o... Supply device, 51... Polarity measuring device, 52... Polarity correcting device, 53... VF measuring device, S4... IRa '1I constant device, 55...Defective product discharge device, 56...Taping device, 57...Chute, 58...Transfer device, 59...Front side reversal product discharge device, 63...Terminal Arm, 65...Terminal, 66...Claw member, 68...Compression spring, 70...Lever 72...Press member, 74
...Solenoid, 85...Pulse mode, 88...
- Motor shaft, 89... Support member, 90... Clutch member. ■ Figure 2g Figure 5 A Figure 4A Figure 4B

Claims (5)

[Claims] (1) A rotating body that is rotatably supported around a vertical axis; a holding device having a suction head that holds an electronic component in a suction state and having a suction passage whose one end communicates with the suction head; and a drive device that rotates the rotating body intermittently.
While the holding device is intermittently rotated within a predetermined angle range, the suction passage communicates with the suction means and the leads on both sides of the chip-shaped electronic component that is sucked and held by the suction head of the holding device and is intermittently transferred. A polarity measuring device that measures the polarity direction with a polarity measuring device and a chip-shaped electronic component that is suction-held by the suction head of the holding device and transferred intermittently are opposite directions, and by receiving the command from the measuring device, A chip-shaped electronic component equipped with a polarity correction device that rotates the holding device 180 degrees around a vertical axis and corrects the polarity direction of the chip-shaped electronic component sucked and held by the suction head of the holding device to a normal direction. polar alignment device. (2) A support tube in which the holding device is attached to the lower surface of the outer periphery of the rotating body, a hollow shaft that is rotatably inserted through the rotating body and the support tube and has a suction hole in the middle, and an upwardly protruding portion of the hollow shaft. a suction head made of an insulating material, which has a holding groove at its tip for holding the chip diode, and has a suction hole in the center of the bottom of the holding groove that communicates with the hollow shaft; a rotating member fixed to the downward protrusion of the rotating member; and an engaging means that engages the rotating member with the support cylinder at a position rotated by 180 degrees using the elasticity of a spring;
Claim 1: The support tube is provided with an annular groove formed to communicate with the suction hole and communicate with the outside, and a suction passage is formed by the annular groove, the hollow shaft having the suction hole, and the suction hole of the suction head. The described polarity alignment device for chip-shaped electronic components. (3) The suction means includes a suction hole formed in a rotary body, a suction annular plate having a sliding surface with the rotary body on the underside of the rotary body, and a suction annular plate that has a suction hole formed in the rotary body, and a suction annular plate that has a suction hole formed in the rotary body, and a suction annular plate that has a sliding surface with the rotary body on the underside of the rotary body. a suction groove that can communicate with the suction hole of the rotating body; a suction pipe that communicates with the suction passage of the holding device and the suction hole of the rotary body; a suction tube that has one end communicating with the suction groove; 3. The polarity alignment device for chip-shaped electronic components according to claim 1, further comprising a vacuum generator connected to the other end. (4) A pair of terminal arms with a polarity measuring device swingably supported in the middle, a terminal attached to the tip of each terminal arm for contacting each lead of the chip diode, and each terminal arm. a spring that opens the base of the terminal arm and applies pressure in the direction of closing the terminal; a claw member protruding from the inside of the intermediate portion of each terminal arm; The above-mentioned terminal arm is rotated so that the space between the terminals is opened against the elasticity of the spring, and the claw member is released by rising, and the above-mentioned terminal arm is rotated in a direction in which the space between the terminals is closed due to the repulsive elasticity of the spring. 4. The polarity aligning device for chip-shaped electronic components according to claim 1, further comprising a pressing member, a driving means for moving the pressing member up and down, and a measuring device connected to each of the terminals. (5) a clutch member in which the polarity correction device is provided at the center of the lower end of the holding device; and a motor supported to be movable up and down;
a clutch member connected to the motor shaft of the motor, raised together with the motor and engaged with the clutch member, and lowered together with the motor and disengaged from the clutch member; 5. The polarity alignment device for chip-shaped electronic components according to claim 1, further comprising a drive means for moving the clutch member up and down.