JP2823069B2 - Magazine transfer method - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for transferring a magazine for accommodating a lead frame or the like. 2. Description of the Related Art A bonding apparatus such as a pellet bonding apparatus, a wire bonding apparatus, or the like, has a magazine for accommodating a lead frame in a stacked state when supplying a lead frame or discharging a bonded lead frame. Used. Conventionally, in order to sequentially change the magazine to a lead frame supply position or a discharge position of a bonding apparatus, a magazine exchange apparatus as described in JP-A-59-82242 has been used. This magazine exchange device includes a magazine mounting portion (a supply table or a discharge table) for mounting a magazine, a magazine elevating unit that supports the magazine and moves up and down, and a magazine elevating unit that moves the magazine up and down to bond the magazine. (In such a manner that the lead frame storage area in the magazine corresponds to the lead frame guide rail of the bonding apparatus in the up / down / width direction). However, in the above-mentioned prior art, the operation of transferring the magazine from the magazine supply table to the magazine elevating section is performed by a conveyor, and the magazine from the magazine elevating section to the magazine discharge table. Is carried out by a magazine pusher. Therefore, a magazine transferred between a magazine mounting unit such as a magazine supply table and a magazine discharge table and a magazine elevating unit is moved in an unstable state. There is a possibility that a magazine having a high height may fall over at a boundary abutting portion between the magazine mounting portion and the magazine elevating portion. Also, in the above-mentioned prior art, the magazine
One side in the width direction of the gin is the positioning wall of the magazine elevating part
Side of the magazine from the magazine supply stand.
The transfer to the lifting / lowering section is to be completed. Accordingly
Position of the magazine set on the magazine lift
To the lead frame guide rail of the bonding machine.
In order to match, it is necessary to change the lead frame type.
The position of the magazine elevating unit when changing the magazine size
An appropriately sized spacer is inserted between the fixed wall and the magazine
A complicated adjustment work is required to make the adjustment work. Also on
Note that in the prior art, the magazine
One side of the magazine to be supplied is a magazine elevating unit as described above.
After pressing against the positioning wall side of the
Separate from the preceding magazine and place the following magazine
Wait at the magazine delivery position on the magazine supply table side
It is necessary to perform the complicated work of slightly reversing the conveyor.
It becomes important. According to the present invention, magazines of various sizes can be reliably, stably and stably placed between a magazine mounting portion and a magazine elevating portion.
Easily transfer and load the magazine
The magazine transfer setting position on the magazine side and the magazine on the magazine
An object of the present invention is to reliably and easily position a magazine work at a set position . According to the present invention, there is provided a magazine mounting section for mounting a magazine, and a magazine lifting section supporting the magazine and moving up and down by a lifting drive. In a magazine transfer method for transferring a magazine between a magazine transfer setting position on a mounting portion side and a magazine work setting position on the magazine lifting / lowering portion side, a magazine supply unit provided in the magazine mounting portion, A magazine holding unit provided in the magazine elevating unit and moving between the magazine elevating unit and the magazine mounting unit, and changing the size of the magazine mounted on the magazine mounting unit with the magazine supply unit in Rukoto moved by the movement amount corresponding to the maga
Positioned in the magazine transfer setting position in order from the earliest of the magazines placed on the gin placement portion, and thereafter,
The magazine holding unit is moved toward the magazine positioned at the magazine transfer setting position, the magazine is held by the magazine holding unit, and the magazine is held toward the magazine elevating unit while holding the magazine. in Rukoto move the holding portion by the movement amount corresponding to a change in the size of the magazine, characterized in that positioning the magazine the magazine holding portion is held in the magazine work set position. According to the present invention, the magazine is mounted on the magazine mounting portion.
When changing the size of the magazine, the magazine supply unit
By changing the movement amount according to the size change, magazine loading
Magazines are placed in order from the earliest of the magazines
Position at the magazine transfer setting position on the loading section side. Ma
The magazine positioned at the magazine delivery setting position
After that, move between the magazine elevating section and the magazine placing section
The magazine is held by the magazine holder and this magazine
The holding unit moves the magazine with the amount of movement according to the magazine size change described above.
Move the magazine to the magazine elevating section and hold the magazine
To the magazine work setting position on the lifting / lowering part side. FIG. 1 is a front view showing an embodiment of a magazine exchanging apparatus to which the present invention is applied. FIG. 2 is a front view showing a magazine mounting portion of FIG. Is a side view of FIG. 2, FIG.
5 is a front view showing the magazine elevating part of FIG. 1 partially cut away, FIG. 5 is a side view of FIG. 4, FIG. 6 is a plan view of FIG. 4, and FIG. 7 is a layout diagram schematically showing a bonding apparatus. As shown in FIG. 7, a bonding apparatus 1 has a bonder 3 disposed at an intermediate portion of a lead frame guide rail 2 and a magazine supply area 4A, a magazine work area 4B, a magazine discharge area on one end loading side of the guide rail 2. An area 4C is set, and a magazine supply area 5A, a magazine work area 5B, and a magazine discharge area 5C are set on the other unloading side of the guide rail 2. That is, the bonding apparatus 1 is used to load the magazine working area 4 on the loading side.
The lead frame filled in the magazine 6 set in B is discharged to the guide rail 2 and bonded by the bonder 3, and the bonded lead frame is placed in the magazine 6 set in the magazine working area 5B on the unloading side. To store. Note that the magazine 6 has a large number of lead frame storage grooves 6A in the vertical direction of the opposed inner walls, and the lead frame can be stored in these storage grooves 6A. Here, the bonding apparatus 1 is provided with an exchange device 10 for transferring the magazine 6 between the magazine supply area 4A, the work area 4B and the discharge area 4C on the loading side, and the magazine supply area on the unloading side. An exchange device 11 for transferring the magazine 6 is provided between the work area 5A, the work area 5B, and the discharge area 5C. As shown in FIGS. 1 to 6, the exchange device 10 includes a magazine supply / placement unit 12, a magazine supply unit 13, a magazine supply / drive unit 14, a magazine discharge / placement unit 15, a magazine elevating unit 16, a lifting / lowering unit. The control device 100 includes a device 17, a magazine holding unit 18, a magazine transfer driving device 19, and a microcomputer. The magazine supply / placement unit 12 is located in the magazine supply area 4A, places one or more magazines 6 filled with a lead frame in a standby state, and supplies the magazines 6 to supply the magazines. A section 13 is provided. The magazine supply section 13 is supported by the magazine supply and placement section 12 and moves horizontally in the guide rod 2.
The magazine 6, which is fixed to the front end of the mounting portion 12 and is mounted on the mounting portion 12, can be pushed forward. The magazine supply unit 13 includes a feed screw shaft 2 parallel to the guide rod 20.
1 is provided. The magazine supply driving device 14 includes a motor 23 supported by a bracket 22 fixed to the magazine supply mounting portion 12, a toothed pulley 24 fixed to an output shaft of the motor 23, the feed screw shaft 21 and a screw. Placement unit 1
2, a toothed pulley 25 rotatably held by the toothed pulley 24, a toothed belt 26 wound around the toothed pulleys 24 and 25, a motor 23
The sensor 23B operates by the sensor cam 23A fixed to the output shaft of the sensor 23B to detect the origin of rotation of the motor 23, and operates by the sensor dog 27 moving integrally with the magazine supply unit 13, and the magazine supply unit 13 is moved to the return end. And a sensor 28 for detecting the set state. That is, the magazine supply driving device 14 includes a toothed pulley 25 rotated by the drive of the motor 23 and the feed screw shaft 21.
The magazine supply unit 13 is moved via screwing with the magazine supply unit. Here, the motor 23 of the supply driving device 14 is constituted by a motor such as a pulse motor, a stepping motor, a DC servo motor, etc., which can digitally set the rotational angle position. The rotation angle amount of the motor 23 and the detection results of the sensors 23B and 28 are transferred to the control device 100. Thus, the control device 100 always digitally calculates the current position of the magazine supply unit 13 driven by the motor 23 of the magazine supply driving device 14, and stores the magazine 6 loaded on the magazine supply placement unit 12. Width (W1,
W2 etc.), the magazine 6 (the front end face of the magazine 6) is set in the magazine transfer setting position 1 defined in the mounting portion 12.
The magazine supply unit 13 is moved by drive control of the motor 23 so as to be positioned at 2A. At this time, the receiver 12
If a plurality of magazines 6 are placed in the magazine 23, the motor 23 is intermittently controlled so as to sequentially position the first magazine 6 at the magazine transfer setting position 12A. The magazine discharge mounting section 15 is located in the magazine discharge area 4C, and mounts the empty magazine 6 after the lead frame has been paid out in the magazine work area 4B. It should be noted that the magazine discharge mounting section 15 is provided with a full sensor 15.
B, an empty state of the magazine 6 is detected in the mounting section 15 to be full, and an operator, a robot or the like is caused to perform a process of discharging the magazine 6. The magazine lifting unit 16 and the lifting drive 17
Is located in the magazine working area 4B. Lifting drive 1
7, a motor 30 is provided on the upper portion of the frame 29, and a lifting screw shaft 31 driven by the motor 30 is vertically provided. The magazine lifting unit 16 is screwed onto the lifting screw shaft 31. The magazine elevating unit 16 moves up and down in response to the rotation of the elevating screw shaft 31 by the motor 30, and the magazine 6 supported by the magazine support 32 is supplied to the magazine supply area 4.
It moves up and down between the position facing A and the position facing the magazine discharge area 4C. Reference numeral 33 denotes a guide rod provided on the frame 29 and inserted into the elevating unit 16 to guide the elevating unit 16. Here, the motor 30 of the lifting / lowering drive device 17 is configured by a motor such as a pulse motor, a stepping motor, a DC servo motor, or the like, which can digitally set the rotation angle position. ing. As a result, the control device 100 controls the lifting drive device 1
The digital camera always calculates the current position of the magazine elevating unit 16 driven by the motor 30 and bonds the storage grooves 6A of the magazine 6 supported by the elevating unit 16 sequentially from the lower side or the upper side. Guide rail 2 of device 1
It operates intermittently so as to be positioned at The storage groove 6A of the magazine 6 supported by the elevating unit 16 is provided with the guide rail 2 of the bonding apparatus 1.
, The lead frame dispensing arm (not shown) operates to supply the lead frame inside the storage groove 6 </ b> A to the guide rail 2. The magazine holding unit 18 is a part of the magazine elevating unit 1
6 and is fixed to the distal end of a guide rod 34 that moves in the horizontal direction. The magazine holding unit 18 includes a vacuum suction chuck 36 connected to the vacuum pipe 35, and holds the magazine 6 transferred between the magazine supply / placement unit 12, the magazine discharge / placement unit 15 and the magazine elevating unit 16 by suction. I do. The magazine holding portion 18 is integrated with a bracket 37 provided at the rear end of the guide rod 34, and the bracket 37 is fixedly provided with a nut 38. The magazine transfer driving device 19 is provided on a bracket 40 integrated with the magazine elevating unit 16 via a support rod 39. That is, the magazine transfer driving device 19 includes the motor 4 supported by the bracket 40.
1, toothed pulley 42 fixed to the output shaft of motor 41,
A feed screw shaft 43 rotatably held by the elevating unit 16 and the bracket 40 in a state in which the nut 38 is screwed, a toothed pulley 44 fixed to an end of the feed screw shaft 43, and toothed pulleys 42, 44 Wound toothed belt 45, motor 4
The sensor 47 that operates with the sensor cam 46 fixed to the output shaft 1 detects the origin of rotation of the motor 41 and the sensor dog 48 that moves together with the magazine supply unit 18 and the magazine holding unit 18 returns to the end position. And a sensor 49 for detecting the state set to the above. That is,
The magazine transfer driving device 19 moves the magazine holding unit 18 via a screw engagement between the feed screw shaft 43 and the nut 38 that are rotated by the drive of the motor 41, and moves the magazine holding unit 18 to the magazine supply mounting unit 12. And magazine elevating unit 16
Or the magazine holding unit 18 is moved between the magazine discharge / placement unit 15 and the magazine elevating unit 16. Here, the motor 41 of the magazine transfer driving device 19 is constituted by a motor such as a pulse motor, a stepping motor, a DC servo motor, etc., which can digitally set the rotational angle position. The amount of rotation of the motor 41 and the detection results of the sensors 47 and 49 are transmitted to the control device 100.
Is forwarded to Thereby, the control device 100 always digitally calculates the current position of the magazine holding unit 18 driven by the motor 41 of the magazine transfer driving device 19,
Magazine delivery setting position 12 of magazine supply / placement unit 12
The magazine holding unit 18 is moved by the drive control of the motor 41 so as to match the magazine 6 positioned at A and suck and hold the magazine 6, and the magazine mounted on the magazine supply mounting unit 12 is moved. 6 width (W1, W2, etc.)
The magazine 41 is moved by the drive control of the motor 41 so that the magazine 6 (the center position in the width direction of the magazine 6) is positioned at the magazine work setting position 16A defined by the magazine elevating unit 16. In accordance with the width (W1, W2, etc.) of the magazine 6 positioned at the magazine operation setting position 16A of the magazine elevating unit 16, the front end face of the magazine 6 is determined in the magazine discharge mounting unit 15. The magazine holding unit 18 is moved by the drive control of the motor 41 so as to be positioned at the set magazine transfer setting position 15A. Next, the operation of the above embodiment will be described. The switching device 10 operates as follows. The magazine lifting / lowering unit 16 driven by the lifting / lowering drive unit 17 is set at a raised position facing the magazine supply area 4A. The magazine holding unit 18 driven by the magazine transfer / drive unit 19 sucks and holds the magazine 6 positioned at the magazine transfer setting position 12A of the magazine supply / placement unit 12, and then sucks and holds the magazine 6. In this state, the magazine 6 is positioned at the magazine work setting position 16A of the magazine lifting / lowering unit 16. The dispensing arm (not shown) is a magazine 6
The lead frame is sequentially paid out from the storage groove 6A of each stage.
At this time, the magazine lifting / lowering unit 16 driven by the lifting / lowering drive device 17 lowers the magazine 6 by one step at intervals of the storage grooves 6A. When the lead frame has been discharged from all the storage grooves 6A of the magazine 6 as described above, the magazine lifting / lowering unit 16 driven by the lifting / lowering drive unit 17 moves the magazine discharging area 4
It is set to the descending position facing C. The magazine holding unit 18 driven by the magazine transfer driving device 19 has the magazine 6 positioned at the magazine work setting position 16 A of the magazine elevating unit 16.
Is positioned at the magazine transfer setting position 15A of the discharge placement unit 15, and after the suction is released, returns to the return end. The switching device 10 repeats the above operations (1) to (4). When one magazine 6 is placed on the magazine supply / placement section 12, an operator, a robot or the like places a new magazine 6 on the placement section 12 during the above operation. In the case where a plurality of magazines 6 are placed on the placement unit 12, during the above operation, the magazine supply unit 13 driven by the magazine supply drive unit 14 pushes the following magazine 6 to the magazine transfer setting position 12A. Position
This positioning operation is repeated until there is no subsequent magazine 6 in the mounting portion 12. The exchange device 11 provided on the unloading side of the bonding device 1 performs substantially the same operation as the exchange device 10 with substantially the same configuration. However, the exchange device 11 places the empty magazine 6 on the magazine supply mounting portion 12 located in the magazine supply region 5A as compared with the exchange device 10, and places the bonded lead frame in the magazine work region 5B. The only difference is that the magazine 6 after storage of the lead frame is stored in the magazine 6 and stored in the magazine discharge mounting section 15 located in the magazine discharge area 5C. According to the above-described embodiment, the magazine 6 is transferred between the magazine supply / placement unit 12 or the magazine discharge / placement unit 15 and the magazine lifting / lowering unit 16 while being held by the magazine holding unit 18. . Therefore, even in a narrow magazine, a tall magazine, or the like, the magazine mounting unit 1
Relocation can be performed reliably and stably without overturning or the like at a boundary abutting portion between the magazine raising portion 16 and the magazine lifting portion 16. Further, according to the above embodiment, the magazine holding section 18 is connected to the magazine placing sections 12 and 15 and the magazine elevating section 1.
6, the magazine transfer drive device 19 for moving the
The moving end of the magazine holding unit 18 can be freely adjusted according to the change in the magazine size, and is configured by a position setting means such as a pulse motor. It can be reliably and easily positioned at the desired magazine work setting position 16A. Further, according to the above embodiment, the magazine supply driving device 14 for moving the magazine supply unit 13 is constituted by means capable of setting the position such as a pulse motor. To the magazine receiver 12
The number of magazines 6 to be placed on the magazine can be freely adjusted according to the change in the magazine size, and magazines of any size can be adjusted in the magazine transfer setting position 12A on the magazine loading portion 12 side.
Can be positioned reliably and easily. The embodiment of the present invention can be applied to a case where a magazine is transferred only between one of the magazine supply / placement section and the magazine discharge / placement section and the magazine elevating section. According to the present invention, the movement of the magazine supply unit is achieved.
The end of the magazine and the moving end of the magazine
Since it can be adjusted freely according to changes, magazines of various sizes
Check that the gin is between the magazine loading section and the magazine
Real, stable and easy transfer, and the magazine
The magazine delivery setting position on the magazine
Reliable and easy access to the magazine work setting position on the gin elevator
Can be positioned .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an embodiment of a magazine exchanging apparatus to which the present invention is applied. FIG. 2 is a front view showing the magazine mounting portion of FIG. 1 with a part cut away. FIG. 3 is a side view of FIG. 2; FIG. 4 is a front view of the magazine elevating unit shown in FIG. 1 with a part cut away. FIG. 5 is a side view of FIG. 4; FIG. 6 is a plan view of FIG. 4; FIG. 7 is a layout view schematically showing a bonding apparatus. [Description of References] 6 Magazine 10 Exchange device 11 Exchange device 12 Magazine supply / placement unit 12A Magazine delivery / set position 13 Magazine supply unit 14 Magazine supply / drive unit 15 Magazine discharge / placement unit 15A Magazine delivery / set position 16 Magazine elevating unit 16A Magazine Work setting position 17 Elevation drive 18 Magazine holding unit 19 Magazine transfer drive 36 Vacuum suction chuck

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B65G 60/00 B65G 1/00 541 B65H 1/28 322 H01L 21/50

Claims (1)

(57) [Claims] A magazine mounting part for mounting a magazine, a magazine elevating part supporting the magazine and moving up and down by an elevating driving device,
A magazine transfer method for transferring a magazine between a magazine transfer setting position on the magazine mounting part side and a magazine work setting position on the magazine elevating part side, wherein the magazine mounting part is provided on the magazine mounting part. A magazine supply unit, a magazine holding unit provided in the magazine elevating unit and moving between the magazine elevating unit and the magazine mounting unit, and the magazine supply unit is mounted on the magazine mounting unit. Move the magazine by the amount corresponding to the change
By positioning the magazines at the magazine transfer setting position in order from the earliest of the magazines placed on the magazine mounting portion, and thereafter, toward the magazine positioned at the magazine transfer setting position, The magazine is held by the magazine holding unit by moving the holding unit, and the magazine holding unit is moved toward the magazine elevating unit by the moving amount according to the change in the size of the magazine while holding the magazine. in Rukoto then, the magazine
A magazine transfer method , wherein the magazine held by a holding unit is positioned at the magazine work setting position.