JPH07110696B2 - Magazine changer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an exchange device for a magazine that accommodates lead frames and the like.

[Prior Art] Bonding devices such as pellet bonding devices and wire bonding devices supply lead frames and
A magazine for accommodating the lead frames in a stacked state is used when the bonding is completed or the lead frames are discharged.

Conventionally, in order to sequentially change the above-mentioned magazine to the lead frame supply position or the discharge position of the bonding apparatus,
A magazine exchanging device as described in JP-A-59-82242 is used. This magazine exchanging device includes a magazine placing section (supply stand or discharge stand) on which a magazine is placed, a magazine elevating section that supports a magazine and moves up and down, and a magazine elevating section that moves up and down to bond a magazine to a bonding apparatus. And an elevating and lowering drive device for positioning the lead frame guide rail in the magazine so that the lead frame housing area in the magazine corresponds to the lead frame guide rail of the bonding device in the vertical / width direction.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional magazine exchanging device, the transfer operation of the magazine from the magazine supply table to the magazine elevating section is performed by the conveyor, and the magazine elevating section moves to the magazine ejection table. The magazine pusher is used to transfer the magazine to and from. Therefore, the magazines to be transferred between the magazine placing parts such as the magazine supplying table and the magazine discharging table and the magazine elevating part are moved in an unstable state. Highly expensive magazines may fall over at the boundary butting portion between the magazine placing portion and the magazine elevating portion.

Further, in the conventional magazine exchanging device described above, one side in the width direction of the magazine is pressed against the positioning wall surface side of the magazine elevating section to complete the movement from the magazine supply table to the magazine elevating section. . Therefore, in order to match the widthwise position of the magazine set on the magazine elevating / lowering part with the lead frame guide rail of the bonding apparatus, the magazine elevating / lowering part positioning wall surface is used when the magazine size is changed based on the lead frame type change. It is necessary to perform complicated adjustment work such that a spacer of an appropriate size is interposed between the magazine and the magazine.

It is an object of the present invention to reliably and stably transfer magazines of various sizes between a magazine placing section and a magazine elevating / lowering section.

[Means for Solving Problems] The first aspect of the present invention is to mount a magazine on which a magazine is mounted, and a magazine elevating unit that vertically moves while supporting the magazine.
In a magazine exchanging device having an elevating and lowering device for vertically moving the magazine elevating / lowering unit, the magazine elevating / lowering unit is provided, the magazine holding unit holds the magazine, and the magazine holding unit is moved to the magazine elevating / lowering unit side. There is provided a magazine holding / transfer device that moves between the end and the moving end on the magazine mounting portion side and transfers the magazine between the magazine mounting portion and the magazine elevating / lowering portion.

The second aspect of the present invention is to mount a magazine on which a magazine is placed, and to move a magazine up and down while supporting the magazine.
In a magazine exchanging device having an elevating and lowering drive device for vertically moving the magazine elevating / lowering unit, the magazine elevating / lowering unit is provided, the magazine holding unit holds the magazine, and the magazine holding unit is moved to the magazine elevating / lowering unit side. A magazine holding / transfer device that moves between an end and a moving end on the magazine mounting part side and transfers a magazine between the magazine mounting part and the magazine elevating part; The magazine holding / transfer device is provided with a magazine positioning device that adjusts the moving end of the magazine holding unit on the magazine elevating unit side and adjusts the magazine setting position on the magazine elevating unit.

[Operation] According to the first and second aspects of the present invention, while the magazine is held by the magazine holding / transfer device magazine holding portion, the magazine holding portion such as the magazine supply table and the magazine discharge table, and the magazine lifting / lowering function. Transferred to and from the department. Therefore, even in a narrow magazine or a tall magazine, it is possible to transfer reliably and stably without falling over, for example, at the boundary butting portion between the magazine placing portion and the magazine elevating portion. .

Further, according to the second aspect of the present invention, since the moving end of the magazine holding portion of the magazine holding / transfer device on the magazine elevating / lowering portion side can be adjusted by the positioning device, the positioning device is operated according to the change of the magazine size. As a result, magazines of all sizes transferred onto the magazine elevating / lowering unit can be reliably and easily set at desired transfer target positions.

[Embodiment] FIG. 1 is a partially cutaway side view showing an embodiment of a magazine exchanging device of the present invention, FIG. 2 is a sectional view of an essential part of FIG. 1, and FIG. FIG. 4 is a layout view schematically showing the bonding apparatus, which is an arrow view taken along the line III-III.

As shown in FIG. 4, the bonding apparatus 1 has a bonder 3 arranged at an intermediate portion of a lead frame guide rail 2 and a magazine supply position 4A on one loading side of the guide rail 2.
The magazine working position 4B and the magazine discharging position 4C are set, and the magazine feeding position 5A, the magazine working position 5B, and the magazine discharging position 5C are set on the other end of the guide rail 2 on the unloading side. That is, the bonding apparatus 1 supplies the lead frame filled in the magazine 6 set at the loading-side magazine working position 4B to the guide rails 2 and bonds them by the bonder 3, and unloads the lead frame after bonding. Stored in the magazine 6 set at the side magazine working position 5B. The magazine 6 is provided with a large number of lead frame storage grooves 6A in the vertical direction of the opposing inner walls, and the lead frames can be stored in these storage grooves 6A.

Here, the bonding apparatus 1 is provided with an exchanging device 10 for transferring the magazine 6 between the magazine feeding position 4A, the working position 4B, and the discharging position 4C on the loading side, and the magazine feeding position 5A, working on the unloading side. An exchange device 11 for transferring the magazine 6 is provided between the position 5B and the discharge position 5C.

The exchange device 10 (the exchange device 11 is substantially the same) is shown in FIG.
As shown in FIG. 3, it has a magazine supply twelfth, a magazine discharge table 13, a magazine elevating part 14, an elevating drive device 15, a magazine holding / transfer device 16, and a magazine positioning device 17.

The magazine supply table 12 is located at the magazine supply position 4A, and a plurality of magazines 6 filled with lead frames are placed in a standby state. The magazines 6 are supplied by the supply arm 18 to the magazine working position 4B side. It is possible to push forward. The supply arm 18 is a feed screw driven by a motor 19.
It moves by screwing it to 20, and the motor 19 moves to the magazine supply position 4A.
The magazine 6 located at the top of the figure stops when the sensor (limit switch) 21 is turned on, and the magazine 6 at the top is supplied to the magazine working position 4B side and the sensor 21 is turned off.

The magazine discharge table 13 is located at the magazine discharge position 4C, and at the magazine work position 4B, the lead frame is dispensed, and the empty magazine 6 is placed. The magazine discharge table 13 is equipped with a full sensor 13A, and the magazine 6 in an empty state is
Detects that the magazines are full on the magazine discharge table 13 and causes the operator, robot, etc. to discharge the magazines 6.

The magazine lifting unit 14 and the lifting drive device 15 are located at the magazine working position 4B. The elevating and lowering drive device 15 includes a motor 23 on the upper part of a frame 22, and vertically elevates and lowers an elevating screw 24 driven by the motor 23.
14 are screwed together. The magazine lifting unit 14 is equipped with a motor 23
The magazine 6 that moves up and down in response to the rotation of the lifting screw 24 by the
It moves up and down between the position facing to the magazine discharge position and the position facing to the magazine discharge position 4C. Reference numeral 26 is a guide rod provided on the frame 22 and inserted into the elevating part 14 to guide the elevating part 14. Here, the motor 23 of the lifting drive device 15 is intermittently positioned so that the storage groove 6A of the magazine 6 supported by the lifting unit 14 is sequentially positioned on the guide rail 2 of the bonding device 1 from the lower side or the upper side thereof. Works properly.

In addition, the storage groove 6A of the magazine 6 supported by the elevating part 14
Is positioned on the guide rail 2 of the bonding apparatus 1, a lead frame payout arm (not shown) operates,
The lead frame inside the storage groove 6A is supplied to the guide rail 2.

The magazine holding / transfer device 16 is provided with a magazine holding unit 28 at the tip of a guide rod 27 that is provided in the elevating unit 14 and moves horizontally. In addition, the magazine holding / transfer device 16
Supports a cylinder (which may be a motor) 29 on the ascending / descending portion 14, and connects the piston rod end of the cylinder 29 to the base end of the guide rod 27. The magazine holding unit 28 includes a vacuum suction chuck 31 connected to the vacuum pipe 30. That is, the magazine holding / transfer device 16 is a magazine holding unit.
The outer side of the magazine 6 is adsorbed and held by the 28, and the cylinder 29 is operated to move the magazine holding section 28 between the moving end on the magazine elevating section side and the moving end on the magazine supply table side.
The magazine 6 is moved between 12 and the elevating part 14, or the magazine holding part 28 is moved between the magazine elevating part side moving end and the magazine ejecting table side moving end, and the ejecting table 13 and the elevating part 14 are moved.
The magazine 6 is moved between and.

The magazine positioning device 17 is composed of a positioning screw 32 screwed to the elevating part 14, and one end of the screw 32 is positioned at the positioning head 33.
A manual knob 34 is provided at the other end of the screw 32. That is, the positioning device 17 adjusts the setting position of the positioning head 33 with which the magazine holding unit 28 abuts at the magazine elevating unit side moving end with the nose 34, and adjusts the width direction setting position of the magazine 6 in the elevating unit 14. Magazine 6 of all sizes
The center position in the width direction of is set on the center line of the guide rail 2.

Next, the operation of the above embodiment will be described.

The exchange device 10 operates as follows.

By the operation of the motor 19 of the magazine supply table 12, the magazine 6 which is located at the magazine supply position 4A and accommodates the lead frame is pushed by the supply arm 18 toward the magazine working position 4B. When the sensor 21 is turned on, the motor 19 is stopped.

Next, by operating the cylinder 29 of the magazine holding / transfer device 16, the magazine holding unit 28 is advanced toward the moving end on the magazine supply table side, the holding unit 28 sucks and holds the magazine 6, and the holding unit 28 moves. The magazine 6 is transferred to the elevating unit 14 by retreating to the moving end on the magazine elevating unit side. The retreat of the holding portion 28 is stopped by the holding portion 28 coming into contact with the positioning head 33. After that, the holding unit 28 continues to hold the magazine 6.

Next, the motor 23 of the lifting drive device 15 is operated to set the storage groove 6A of the first stage of the magazine 6 to the same level as the guide rail 2 of the bonding device 1.

Next, a lead frame feeding arm (not shown) supplies the lead frame to the guide rail 2 from the storage groove 6A of the magazine 6.

Hereinafter, the above procedure is repeated for all the storage grooves 6A of the magazine 6, and after the lead frames have been paid out for all the storage grooves 6A, the magazine 6 is set to a position facing the magazine discharge position 4C.

Next, by operating the cylinder 29 of the magazine holding / transfer device 16, the magazine holding unit 28 is advanced toward the moving end on the magazine discharge table side, and the magazine 6 is continuously sucked and held by the holding unit 28. , The magazine 6 is discharged to the magazine discharge table 13. After the magazine 6 is completely discharged to the discharge table 13, the holding unit 28 releases the vacuum suction and retracts to the moving end on the magazine elevating unit side.

Next, the elevating / lowering drive device 15 sets the magazine holding portion 28 to the position facing the magazine supply position 4A by the operation of the motor 23. At this time, the above is executed at the same time, and the next supply magazine 6 is pushed to the coating position for the magazine holding portion 28 to prevent the loss of working time.

The exchanging device 11 provided on the unloading side of the bonding device 1 has substantially the same configuration as the exchanging device 10 and performs the same operation. However, as compared with the exchange device 10, the exchange device 11 places the empty magazine 6 on the magazine supply table 12 located at the magazine supply position 5A, and the lead frame after bonding is placed at the magazine working position 5B at the magazine working position 5B. 6 and the magazine 6 after the lead frame is stored is placed on the magazine discharge table 13 located at the magazine discharge position 5C.

According to the above embodiment, the magazine 6 is transferred between the magazine supply table 12, the magazine discharge table 13 and the magazine elevating section 14 while being held by the magazine holding section 28 of the magazine holding / transfer apparatus 16. To be done. Therefore, even if the magazine 6 is narrow, the magazine 6 is tall, etc.
12. The transfer can be performed reliably and stably without causing a fall at a boundary butting portion between the magazine discharge table 13 and the magazine elevating / lowering portion 14 and the like.

Further, according to the above embodiment, the magazine holding / transfer device 16
Since the moving end of the magazine holding unit 28 on the magazine elevating unit side can be adjusted by the positioning device 17, it is transferred onto the magazine elevating unit 14 by operating the positioning device 17 according to the change of the magazine size. The magazine 6 of any size can be set reliably and easily at a desired transfer target position.

The exchanging device of the present invention can be applied to a device that transfers a magazine only between one of the magazine supply table and the magazine ejection table and the magazine elevating part.

Further, the exchanging device of the present invention does not have to manually operate the magazine positioning device as with the above-mentioned positioning screw 32, but may be automatically set by a stepping motor or the like supported by the magazine elevating part.

[Advantages of the Invention] As described above, according to the present invention, magazines of various sizes can be reliably and stably transferred between the magazine placing section and the magazine elevating section.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a magazine exchanging device of the present invention partially broken away, FIG. 2 is a sectional view of an essential part of FIG. 1, and FIG. 3 is a III-III line of FIG. FIG. 4 is a layout view schematically showing the bonding device, taken along the arrow. 6 …… Magazine, 10, 11 …… Replacement device, 12 …… Magazine supply stand, 13 …… Magazine discharge stand, 14 …… Magazine lifting part, 15 …… Up / down drive device, 16 …… Magazine holding / transfer device , 17 …… Magazine positioning device, 28 …… Magazine holder.

Claims (2)

[Claims] 1. A magazine exchanging device comprising: a magazine placing section for placing a magazine; a magazine elevating section for supporting the magazine to move up and down; and an elevating drive device for vertically moving the magazine elevating section. , The magazine holding unit holds the magazine, and the magazine holding unit is moved between the moving end of the magazine lifting unit and the moving end of the magazine placing unit to move the magazine placing unit. A magazine exchanging device comprising a magazine holding / transfer device for transferring a magazine between a magazine and a magazine elevating / lowering unit. 2. A magazine exchanging device comprising: a magazine placing part for placing a magazine; a magazine elevating part for supporting the magazine to move up and down; and an elevating drive device for vertically moving the magazine elevating part. , The magazine holding unit holds the magazine, and the magazine holding unit is moved between the moving end of the magazine lifting unit and the moving end of the magazine placing unit to move the magazine placing unit. And a magazine lifting / lowering unit for transferring a magazine between the magazine holding / transferring unit and the magazine lifting / lowering unit. And a magazine positioning device that adjusts a magazine setting position on the magazine lifting unit.