JPH1197458A - Magazine positioning carrying out device and bonding device with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of parts and the cost, by using a regulation member which regulates a magazine for preparing a following magazine when collecting a preceding magazine. SOLUTION: Since a magazine M is spaced at a clearance (e) away from a regulation member 73 in a front side, it slides smoothly in contact with a regulation member 74 in a rear side and descends together with a magazine holder 15. When a preceding magazine M is off a roller 81 in a lowest stage due to the descent, a pulse motor rotates positively and the regulation member 73 is in proximity to another regulation member 74. That is, the regulation member 73 fits closely to a following magazine M, and the regulation members 73, 74 in front and in the rear hold the following magazine M therebetween and prepare to hold it not to drop. An empty preceding magazine M alone descends further together with the magazine holder 15 and arrives at a collection position. As a result, it is possible to reduce the umber of parts and the cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magazine positioning / discharging apparatus for positioning a magazine containing a frame such as a lead frame and discharging an empty magazine, and a bonding apparatus having the magazine positioning / discharging apparatus.

[0002]

2. Description of the Related Art A conventional wire bonding apparatus disclosed in Japanese Utility Model Laid-Open No. Hei 4-20232 is known. One example of this device is shown in FIGS.

As shown in FIG. 12, in this wire bonding apparatus, a magazine M in which a plurality of lead frames L # F are arranged and accommodated (arranged in a direction perpendicular to the paper surface) is loaded into a loader 151.

The loader 151 sends out, for example, the lowermost one of the lead frames L # F in the magazine M, and the lead frame L # F is supplied to a pair of guide rails by a frame transfer means (not shown). It is guided along 157 and 158 and transferred onto the heater plate 155 of the bonding stage.

When the lead frame L @ F reaches the heater plate 155, the frame transfer means intermittently feeds the lead frame L @ F by the arrangement pitch of each IC chip 153, and the bonding means 160 makes the IC chip 153 And a lead (not shown) formed on the lead frame are connected by bonding using a conductive wire. Lead frame LF completed bonding
Is accommodated in the empty magazine M of the unloader 162 having the same configuration as the loader 151 by the frame transfer means.

[0006] The loader 151 is provided with positioning means 165 for lowering or ascending (in a direction perpendicular to the paper surface) the magazine M by an arrangement pitch of the lead frame L＼F, and a movable base on which the positioning means 165 is mounted. 166 and regulating means 167 disposed on the movable base 166 to regulate the magazine M in a horizontal plane perpendicular to the moving direction.

The movable base 166 is mounted on a gantry 170 of the apparatus main body so that the position can be adjusted in the direction of arrow 0. The adjusting means 172 shown in FIG.
4 and a nut 1 screwed to the screw shaft 175 and coupled to the movable base 166.
76 and a pulse motor 1 for driving the screw shaft 175 to rotate.
77.

The positioning means 165 includes a screw shaft 181 mounted on a movable base 166 via a bearing 180.
And a pulse motor 182 for driving the screw shaft 181 to rotate.
An elevating member 183 screwed to the screw shaft 181, a magazine receiving portion 185 which is connected to the elevating member 183 and carries a magazine M, and is slidably provided at a tip end of the magazine receiving portion 185. Chuck 18 for holding and holding magazine M
6.

Also, as shown in FIG.
7 has a substantially L-shaped frame 190 fixed to the movable base 166, and a regulating member 192 having an L-shaped cross section near the bent portion of the frame 190.

On one side of the frame 190, there is provided a regulating member 193 which cooperates with the regulating member 192 to regulate the magazine M by moving it in the width direction (the direction of arrow R). The restricting member 193 includes a nut 194 and the screw shaft 19.
5 and can be moved. Also, frame 1
A pulse motor 1 for rotating and driving a screw shaft 195 is provided on
97 is fixedly provided.

On the other side of the frame 190, a regulating member 203 for regulating the magazine M in its length direction (the direction of arrow S) is movably mounted. The restricting member 203 is movable with a nut 204 screwed onto a screw shaft 205. Further, a pulse motor 207 for driving the screw shaft 205 to rotate is fixed on the frame 190.

Next, the operation of the loader 151 will be described.

A plurality of magazines M are inserted from above into a space surrounded by the regulating members 192, 193 and 203 shown in FIG.
5. Place on top. Each pulse motor 197 shown in FIG.
207 rotates forward to move the regulating members 193 and 203 toward the regulating member 192 until the detecting means 212 and 213 detect them, thereby regulating each magazine M.

Next, the pulse motor 182 shown in FIG. 13 is rotated, and each magazine M is lowered by the arrangement pitch of the lead frames L # F housed together with the magazine receiving portion 185. In conjunction with the lowering operation of the magazine M, the lead frames L # F are taken out of the magazine one by one, and bonding is performed.

When the bonding is completed for all the lead frames L＼F in the preceding lowermost magazine M and the magazine M is emptied, the magazine pusher 210 shown in FIG. Subsequent 2
The second magazine M is pressed and fixed to the regulating member 192. Then, only the first empty magazine M is further lowered together with the magazine receiving portion 185 and collected from the magazine receiving portion 185 that has reached the collecting position.

When the first magazine is collected, the magazine receiving portion 185 rises again and contacts the bottom surface of the second magazine M to receive it. At this point, the magazine pusher 21
0 carries out the pull-in operation and carries the magazine M by the magazine receiving portion 185. Hereinafter, a series of operations similar to those of the first magazine are performed, and bonding is also performed on each lead frame L # F in the second magazine M.

The magazine discharging means shown in FIG. 13 is a discharging member 217 for discharging the magazine M by reciprocating between a discharging position and a non-discharging position shown by a two-dot chain line and a solid line.
And driving means (not shown) such as an air cylinder mechanism for operating the discharge member 217.

[0018]

In the conventional apparatus, when the preceding magazine M is collected, the magazine pusher 21 is used.
Use 0 to wait for the next magazine. Since this magazine pusher 210 uses an air cylinder,
It requires many parts such as an air cylinder and piping parts for supplying air, a solenoid valve and a driver, and thus poses problems such as hindering cost reduction and increasing the failure rate.

An object of the present invention has been made in view of the above-mentioned drawbacks of the prior art, and is intended to provide a magazine positioning / ejecting apparatus which achieves cost reduction by reducing the number of parts and a bonding apparatus having the same. To provide.

[0020]

According to the present invention, there is provided a positioning means for holding a magazine for accommodating a plurality of frames at a supply position, moving and positioning the magazine in a direction in which the frames are arranged, and moving the magazine to a predetermined collection position. In a magazine positioning / ejecting device including a regulating unit that regulates in a direction substantially perpendicular to the moving direction and a magazine discharging unit that discharges the magazine that has reached the collection position, the regulating unit is relatively movable. A regulating member provided with a friction member at a contact portion with the magazine to regulate the magazine; a driving unit for moving the regulating member by a command pulse from a control unit; and a feedback according to a rotation amount of the driving unit. Signal generating means for generating a pulse signal, wherein when the positioning means moves the preceding magazine to the collecting position, When the magazine is pinched by the regulating member and is on standby, the command pulse is sent to the driving means a predetermined number of times or for a predetermined time after the feedback pulse signal from the signal generating means is no longer obtained. .

The driving means of the present invention comprises a screw shaft, a pulse motor for driving the screw shaft to rotate, and a nut screwed to the screw shaft.

Further, the signal generating means of the present invention is constituted by an encoder.

Further, the friction member according to the present invention is a member which is made of urethane rubber, synthetic resin, steel, or the like and has a small contact area and is pressed at a point.

Further, the present invention provides a positioning means for holding a magazine in which a plurality of frames are arranged and accommodated in a supply position, moving and positioning the magazine in a frame arrangement direction, and moving it to a predetermined collection position, and Regulating means for regulating in a substantially vertical direction, a magazine discharging means for discharging the magazine reaching the collection position, a frame transferring means for transferring the frame between the magazine and the bonding stage, and In a bonding apparatus having a bonding unit for performing a bonding operation on a reached frame, the restricting unit is relatively movable, and a friction member is provided at a contact portion with the magazine to regulate the magazine. Restriction member and driving means for moving the restriction member by a command pulse from a control unit Signal generating means for generating a feedback pulse signal according to the rotation amount of the driving means, when the positioning means moves the preceding magazine to the recovery position, the subsequent magazine is held by the regulating member In the standby mode, the command pulse is transmitted to the driving means a predetermined number of times or for a predetermined time after the feedback pulse signal from the signal generation means is no longer obtained.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a wire bonding apparatus as an embodiment of the present invention will be described with reference to the accompanying drawings. However, portions having the same configuration and function as those of the conventional wire bonding apparatus will not be described again, and description thereof will be omitted. In the following description, the same components as those of the conventional wire bonding apparatus are denoted by the same reference numerals. In this embodiment, a wire bonding apparatus will be described as an example, but the present invention is also applicable to a bonding apparatus such as a die bonding.

The wire bonding apparatus according to the present invention comprises:
The regulating means shown in FIGS. 10 and 11 has the feature thereof, but in the following description, it will be described sequentially from FIG. 1 to FIG.

1 to 3, the loader 1 as a magazine positioning and discharging device is disposed on the left side of each of the guide rails 157 and 158 and the bonding means 160 in FIG. 12, that is, on the upstream side in the lead frame transport direction. The loader 1 is loaded with a magazine M in which a large number of unbonded lead frames L # F are accommodated, and the lead frames L # F are taken out of the magazine M one by one and supplied to the bonding means 160. In addition, as shown in FIG.
On the right side of 158, an unloader (not shown) loaded with an empty magazine M is provided as another magazine positioning / ejecting device. The unloader sequentially receives and arranges the lead frames L＼F bonded and transported by the bonding means 160 in the magazine M. Since this unloader has the same configuration as the above-described loader 1, description of the unloader is omitted, and only the loader 1 will be described.

The loader 1 has a positioning means 5 as shown in FIGS. The positioning means 5 mounts a magazine M accommodating a large number of lead frames L # F, and intermittently lowers and positions the magazine M by the arrangement pitch of the accommodated lead frames L # F. The pushing means 6 shown in FIG. 1 moves each lead frame L フ レ ー ム F in the magazine M one by one from the lowest one to the bonding position in accordance with the intermittent lowering positioning operation of the magazine M by the positioning means 5. Transfer and push out.
The lead frame L # F pushed out of the magazine M by the pushing means 6 is transferred to a bonding position by a frame transfer means (not shown), and after the bonding is completed, is housed in the magazine M on the unloader by the frame transfer means. You.

As shown in FIG. 4, the positioning means 5 includes a screw shaft 12 mounted on a base 8 fixed to an apparatus mount 170 via a bearing 10 in the direction of arrow Z, and a base 8 via a bracket 19. A pulse motor 13 for rotating and driving a screw shaft 12 attached to the shaft, an elevating member 14 screwed to the screw shaft 12, and coupled to the elevating member 14, the magazine M
And a magazine receiving portion 15 (movable supporting member) for receiving the same. The position of the magazine receiver 15 is detected by a signal from an encoder (not shown) that generates a pulse signal according to the rotation amount of the pulse motor 13.

The upper end of the screw shaft 12 and the pulse motor 13
The toothed belt wheels 12b and 13b are fitted on the output shaft 13a of the first embodiment, respectively, and the toothed belt 17 is wound around these two toothed belt wheels.

The loader 1 has regulating means for regulating the magazine M moved by the positioning means 5 in the direction of its movement, that is, in a plane perpendicular to the arrangement direction of the lead frames L＼F.

As shown in FIGS. 1 to 3, the restricting means is provided on a fixed frame 21 fixed on the base 8, and is reciprocally movable on the fixed frame 21 in a direction indicated by an arrow G. Pair of movable frames 23 and 24
And driving means 26 and 27 for moving the movable frames 23 and 24, respectively, and encoders 40, 50 and 70 as signal generating means described later.

A linear motion guide unit comprising track rails 29a, 30a and sliders 29b, 30b is interposed between the movable frames 23, 24 and the fixed frame 21 so that the movable frames 23, 24 move in the direction of arrow G. It is movable.

As shown in FIGS. 1 and 2, the driving means 26 includes a screw shaft 34 mounted on the fixed frame 21 via a bearing 33, a pulse motor 35 for rotating the screw shaft 34, and a screw shaft 34. , And a nut 36 fixed to the movable frame 23.

One end of the screw shaft 34 and the pulse motor 35
The output shaft 35a is fitted with toothed belt wheels 34b, 35b, respectively, and the toothed belt 37 is wound around these toothed belt wheels, and the power from the pulse motor 35 is transmitted to the screw shaft 34. An encoder 40 as a signal generating means is connected to one end of the screw shaft 34 via a coupling 39. The encoder 40 issues a feedback pulse signal according to the rotation amount of the pulse motor 35.

On the other hand, the same applies to the driving means 27 for driving the movable frame 24. As shown in FIGS. 1 and 3, a screw shaft 44 attached to the fixed frame 21 via a bearing 43, and a screw shaft 44 And a movable frame 2 which is screwed onto the screw shaft 44 and drives the movable frame 2
4 and a nut 46 fixed to the nut 4.

One end of the screw shaft 44 and the pulse motor 45
The toothed belt wheels 44b, 45b are fitted on the output shaft 45a, and the toothed belt 47 is wrapped around the both toothed belt wheels to transmit power. An encoder 50 as a signal generating unit is connected to one end of the screw shaft 44 via a coupling 49. This encoder 50
A feedback pulse signal according to the rotation amount of the pulse motor 45 is issued.

As shown in FIGS. 1 and 3, a movable bracket 53 has an arrow H on the movable frame 24 (see FIG. 1).
It is provided so as to be able to reciprocate in the direction indicated by. The movable bracket 53 is movable with a linear guide unit including a track rail 54a and a slider 54b interposed between the movable bracket 53 and the movable frame 24.

Driving means 56 for moving the movable bracket 53 includes a screw shaft 64 attached to the movable frame 24 via a bearing 63, a pulse motor 65 for rotating and driving the screw shaft 64, and a screw shaft 64. And a nut 66 fixed to the movable bracket 53.

One end of the screw shaft 64 and the pulse motor 65
The toothed belt wheels 64b, 65b are respectively fitted to the output shaft 65a, and the toothed belt 67 is wound around the both toothed belt wheels, and the power from the pulse motor 65 is transmitted to the screw shaft 64. A coupling 69 is provided at one end of the screw shaft 64.
And an encoder 70 as a signal generating means. The encoder 70 is provided with the pulse motor 6
5 generates a feedback pulse signal corresponding to the amount of rotation.

On the movable frames 23 and 24 and the movable bracket 53, long restricting members 73, 74 and 75 for restricting the magazine M are provided so as to extend in the vertical direction (the direction of arrow Z). I have. These restricting members 73 to 75 are the movable frame 2 on which they are mounted, respectively.
Due to the operation of the movable brackets 3 and 24 and the movable bracket 53, they are relatively close to and separated from each other.

The regulating member 73 is formed in a rectangular plate shape as a whole, and is provided in a pair. In addition, other regulating members 7
4 and 75 are provided one by one, and each has an L-shaped cross section as shown in FIG. The magazine M includes regulating surfaces 74a formed on each side of the regulating members 74 and 75,
75a and the rectangular plate-shaped regulating member 73 regulate the direction perpendicular to the transport direction of the lead frame L # F, that is, the width direction of the magazine. In addition, regulating surfaces 74 formed on the other sides of both regulating members 74 and 75, respectively.
The control in the length direction of the magazine M, that is, the lead frame transfer direction is performed by b and 75b. Note that, as shown in FIG.
A slit 74d is formed to allow the lead frame L # F to pass when the #F is transported toward the bonding position.

As shown in FIGS. 1 and 2, each of the regulating members 73 arranged on one side of the magazine M in the width direction.
Are provided with a plurality of rollers 81 along the longitudinal direction, starting from the position corresponding to the lead frame transport level 80.

Next, the operation of the wire bonding apparatus will be described.

First, the adjustment operation when the type of the lead frame L # F is changed in the wire bonding apparatus according to the present invention will be described with reference to FIGS.

Based on an operation command from the keyboard, the control unit of the wire bonding apparatus rotates the respective pulse motors 35, 45 and 65 shown in FIG.
, 44 and 64 to rotate each movable frame 23,
24 and the movable bracket 53, and
The members 3, 74 and 75 are moved outward as shown in FIG. 5, that is, in a direction away from each other, and are positioned at respective reference positions (first reference positions). In addition, each regulating member 73, 7
The second reference positions in the mutually approaching direction of the magazines 4 and 75 are set such that the spacing between the regulating members 73, 74 and 75 is smaller than the minimum outer diameter of the magazine. Therefore, the control unit detects that the magazine is not loaded by reaching the second reference position after each of the regulating members 73, 74, and 75 starts moving in the direction approaching each other. Also, while each of the regulating members 73, 74, 75 moves from the first reference position to the second reference position, each encoder 40, 5
When the feedback pulse signals from 0 and 70 cannot be obtained, the completion of the regulation of the magazine M and its presence are detected.

Here, the width direction regulation will be described. When the regulation members 73, 74, 75 are separated from each other and reach the first reference position, a magazine accommodating a lead frame to be newly handled between the regulation members. For example, two Ms are inserted from above in a state of being vertically stacked and placed on the magazine receiving portion 15.

When an operation command is issued in this state, for example, the pulse motor 35 for driving the regulating member 73 located on one side in the width direction of the magazine M rotates forward, and as shown in FIG. Move toward the regulating members 74 and 75. As a result, the magazine M is pressed by the regulating members 73 and pressed against the two regulating members 74 and 75, and is held in the widthwise direction by the respective regulating members 73, 74 and 75. In this state, the regulating member 73 that has moved cannot move any further, and the pulse motor 35
Stops, and the feedback pulse signal from the encoder 40 cannot be obtained. The control unit confirms the presence of the magazine upon completion of the regulation in the magazine width direction and checks the pulse motor 35.
Stop supplying power to

Next, the length direction regulation will be described.
When the pulse motor 65 rotates forward, the regulating member 75 located on one side in the longitudinal direction of the magazine M moves toward the regulating member 74 on the other side shown in FIG. As a result, the magazine M is pressed by the regulating member 75 and pressed against the regulating member 74, so that the magazine M is held in the longitudinal direction by the regulating members 74 and 75. When the restricting member 73 is in the same holding state as the proximity operation, the restricting member 75 cannot move any more, the pulse motor 65 stops, and the feedback pulse signal from the encoder 70 cannot be obtained. The control unit confirms the completion of the regulation in the magazine length direction, and stops the power supply to the pulse motor 65.

The magazine M is provided with each of the regulating members 73, 7
In the state surrounded by 4 and 75, the magazine M can be freely moved up and down, and the positioning means 5 can move the magazine M up and down.

Next, when the pulse motor 35 rotates in the reverse direction and the pulse motor 45 rotates in the forward direction, as shown in FIG. 8, the regulating members 73, 74, and 75 synchronize in the magazine width direction with the same resolution and the same speed. The magazine M stops when the center in the width direction of the magazine M coincides with the center 110 of the path for guiding the lead frame L # F.

When the control members 73, 74, and 75 are moved in the same direction so that the center of the magazine M in the width direction coincides with the center 110 of the lead frame transport path as described above (the state shown in FIG. 8). The amount of movement of each of these regulating members is set to W / 2 if the amount of movement from the first reference position to the stop position of only one regulating member 73 performed as a preceding step is W.

In parallel with the positioning operation of the magazine M, the guide rails 157 and 158 shown in FIG. 12 adjust the interval between the rails so that the lead frame L # F accommodated in the magazine M can be transported. The adjustment of the rail interval is performed in the same manner as the adjustment of each of the regulating members 73, 74 and 75.

As described above, the adjustment according to the lead frame L # F and the magazine M to be newly handled is completed. When the control unit completes the adjustment, each control member 73,
The setting positions of the guide rails 74 and 75 and the guide rails 157 and 158 (see FIG. 12) are input and stored in a RAM serving as storage means. Then, the same kind of lead frame L
When the F and the magazine M are handled, the stored information is read out and the position is set immediately. Thus, each of the regulating members 73, 74, 75 and each of the guide rails 15
7 and 158 are automatically set by digital control, data for each product type is stored, and the data is read out as necessary. This facilitates the setting at the time of product type replacement, shortening time and simplifying work. Is achieved.

After the completion of the adjustment in the width direction and the length direction,
The pushing operation of the lead frame L # F housed in the lower magazine M of the two magazines M by the operation of the pushing means 6 shown in FIG. 1 will be described.

FIG. 9A shows the magazine receiving portion 15 and the position of each magazine M with respect to the lead frame transport level 80 when one of the lowermost ones of the lead frames L / M is pushed out.

FIG. 9B shows the magazine receiving portion 15 and each of the magazines M in a state where the bonding has been completed for all the lead frames L $ F in the first magazine M.
Of the lead frame with respect to the lead frame transport level 80 is shown.

FIGS. 9C and 9D show the first, that is, all the lead frames L リ ー ド F in the lower magazine M.
When the magazine M is emptied after bonding is completed, the second magazine M located above is
4 shows a process in which only the first magazine M, which has been pressed and fixed against 4, 75 and is empty, is further lowered together with the magazine receiving portion 15 to reach the collection position and is collected from above the magazine receiving portion 15. .

Next, when collecting the first magazine M shown in FIG.
The operation of waiting the second magazine M will be described with reference to FIG.

As shown in FIGS. 10 and 10, the magazine M is separated from the front regulating member 73 by a gap e, so that the magazine M slides smoothly against the rear regulating members 74 and 75, When the preceding magazine M comes off the lowermost roller 81 due to the lowering, the pulse motor 35 shown in FIG. 2 rotates forward and the regulating member 73 causes the other regulating member 74 (and 75) to rotate. Approaching towards. That is, as shown in FIG. 10, the regulating member 73 is in close contact with the subsequent magazine M, and
(And 75) hold the subsequent magazine M so as not to be pinched and fall to a standby state.

When a command pulse to the pulse motor 35 shown in FIG. 1 is issued by a command from the control unit, the pulse motor 35 is driven, and each of the regulating members 73 shown in FIGS.
Moves from the first reference position to the second reference position. At this time, as the feedback pulse signal from the encoder 40, a signal corresponding to the rotation amount of the pulse motor 35 is obtained. FIG. 11 shows this feedback pulse signal as O
Indicated by N. When the regulating member 73 clamps the magazine M, the feedback pulse signal cannot be obtained. FIG. 11 shows this as OFF.

However, in the bonding apparatus according to the present invention, after the feedback pulse signal is no longer obtained, that is, after the feedback pulse signal is turned off, the control unit further sends a command pulse a predetermined number of times or for a predetermined time and then stops the pulse motor. FIG. 11 shows a continuous command state where the command pulse is ON. This is to check the safety factor for reliably holding the magazine by further sending a command pulse after the feedback pulse signal can no longer be obtained.

Thus, the regulating member 73 securely holds the magazine M and prevents the magazine M from falling.

In this way, the succeeding magazine M is brought into a standby state, and as shown in FIGS. 10 and 11, only the emptied preceding magazine M is further lowered together with the magazine receiving portion 15 to the collection position. Reach.

When the first magazine M is collected, FIG.
(E), the magazine receiving portion 15 rises again and contacts the bottom surface of the second magazine M. At this point, the pulse motor 35 rotates in the reverse direction and the regulating members 73, 74,
The pinching state of the second magazine M by 75 is released,
The second magazine M is carried by the magazine receiving unit 15. The return amount of the regulating member 73 at this time is determined by a preset rotation angle of the pulse motor 35.

In the present embodiment, the regulating member 73 is operated to put the second, subsequent magazine M into a standby state. However, the regulating member 75 which moves in the left-right direction of the apparatus is actuated to operate the magazine M. May be held.

The second magazine M is the magazine receiving section 1
5, a series of operations similar to those for the first magazine are performed, and the second magazine M
Bonding is also performed for each lead frame L # F. At this time, as shown in FIG. 9D, the next magazine M (shown by a two-dot chain line) is further added.

As shown in FIG. 2, a receiving stand 111 is provided at the collection position of the magazine M, and when the magazine receiving section 15 reaches the lowest position, the magazine M is placed on the receiving stand 111. Note that the magazine M is placed in contact with the upper surface of the receiving stand 111 slightly above the magazine receiving portion 15 reaching the lowermost position, and as shown in FIG. When it reaches the lowering position, it leaves the magazine M. In FIG. 9D, the distance of the separation is indicated by α.

Further, as shown in FIG. 2, the magazine discharging means includes a discharging member 117 for reciprocatingly discharging the magazine M between a discharging position and a non-discharging position indicated by a two-dot chain line and a solid line, respectively. This discharging member 117 is connected to the output shaft 1
And (air) cylinder mechanism 118 as a driving means operated by the reciprocating motion of 18a.

Each of the rollers 81 provided on the regulating member 73 shown in FIG. 10 is mounted on the free end of a leaf spring 81a fixed at one end of the regulating member 73, as shown in FIG. Then, the leaf spring 81a bends as the regulating member 73 approaches the magazine M.

A urethane rubber or a neoprene rubber,
Friction member 7 having a relatively high friction coefficient, such as synthetic resin
3c is affixed, so that the subsequent magazine M
Can be held firmly. Also,
It may be a member made of steel or the like to reduce the contact area and press at a point.

[0072]

As described above, in the present invention, in order to make the following magazine stand by when collecting the preceding magazine, the regulating member serving to regulate the magazine is also used. Therefore, the number of parts can be significantly reduced, which can contribute to cost reduction and improvement in reliability.

[Brief description of the drawings]

FIG. 1 is a plan view including a partial cross section of a wire bonding apparatus according to the present invention.

FIG. 2 is an AA arrow view including a partial cross section of FIG. 1;

FIG. 3 is a view taken in the direction of arrows BB in FIG. 1;

FIG. 4 is a view taken in the direction of arrows CC including a partial cross section of FIG.

FIG. 5 is an operation explanatory diagram of the wire bonding apparatus shown in FIGS. 1 to 4;

FIG. 6 is an operation explanatory diagram of the wire bonding apparatus shown in FIGS. 1 to 4;

FIG. 7 is an operation explanatory view of the wire bonding apparatus shown in FIGS. 1 to 4;

FIG. 8 is an operation explanatory diagram of the wire bonding apparatus shown in FIGS. 1 to 4;

FIG. 9 is an operation explanatory view of the wire bonding apparatus shown in FIGS. 1 to 4;

FIG. 10 is an operation explanatory diagram of the wire bonding apparatus shown in FIGS. 1 to 4;

11 is a time chart of the regulating member shown in FIG.

FIG. 12 is a plan view of a conventional wire bonding apparatus.

FIG. 13 is a side view including a partial cross section of the wire bonding apparatus shown in FIG.

FIG. 14 is a plan view of a main part of the wire bonding apparatus shown in FIG.

[Explanation of symbols]

M Magazine L＼F Lead frame (frame) 1 Loader (magazine positioning and discharging device) 5 Positioning means 6 Pushing means 8 Base 13, 35, 45, 65 Pulse motor 14 Elevating member 15 Magazine receiving part (movable supporting member) 21 Fixed frame 23, 24 Movable frame 26, 27, 56 Driving means 40, 50, 70, 113 Encoder 53 Movable bracket 73, 74, 75 Restriction member 80 Lead frame transport level 111 Cradle 117 Ejection member 155 Heater plate 157, 158 Guide rail 170 Equipment stand

Claims (5)

[Claims] 1. A positioning means for holding a magazine accommodating a plurality of frames in a supply position, moving and positioning the magazine in a frame arrangement direction, and moving the magazine to a predetermined collection position, and moving the magazine substantially perpendicular to the moving direction. In a magazine positioning / ejecting device provided with a regulating means for regulating in a direction, and a magazine discharging means for discharging the magazine which has reached the collection position, the regulating means is relatively movable and is provided at a contact portion with the magazine. A regulating member provided with a friction member for regulating the magazine; a driving unit for moving the regulating member by a command pulse from a control unit; and a signal generating unit for generating a feedback pulse signal according to a rotation amount of the driving unit. When the positioning means moves the preceding magazine to the collection position, the subsequent magazine is regulated Magazine positioning characterized in that the command pulse is transmitted to the driving means a predetermined number of times or for a predetermined time after the feedback pulse signal from the signal generation means is no longer obtained when the apparatus is in a standby state while being sandwiched by materials. Discharge device. 2. The magazine positioning apparatus according to claim 1, wherein said driving means comprises a screw shaft, a pulse motor for rotating and driving said screw shaft, and a nut screwed to said screw shaft. apparatus. 3. The magazine positioning device according to claim 1, wherein said signal generating means is an encoder. 4. The magazine positioning apparatus according to claim 1, wherein the friction member is made of urethane rubber, synthetic resin, steel, or the like, and is a member that has a small contact area and is pressed at a point. 5. A positioning means for holding a magazine for accommodating a plurality of frames at a supply position, moving and positioning the magazine in a direction in which the frames are arranged, and moving the magazine to a predetermined collection position, wherein the magazine is substantially perpendicular to the moving direction. Regulating means for regulating the direction, a magazine discharging means for discharging the magazine that has reached the collection position, a frame transferring means for transferring the frame between the magazine and the bonding stage, and a frame that has reached the bonding stage. A bonding member having bonding means for performing a bonding operation with respect to the bonding device, wherein the regulating means is relatively movable, and a friction member is provided at a contact portion with the magazine to regulate the magazine; and Driving means for moving the regulating member by a command pulse from a control unit; Signal generating means for generating a feedback pulse signal according to the amount of rotation of the means, when the positioning means moves the preceding magazine to the collection position, and when the subsequent magazine is held by the regulating member to stand by A bonding apparatus, wherein the command pulse is transmitted to the driving means a predetermined number of times or for a predetermined time after the feedback pulse signal from the signal generating means is no longer obtained.