JPH0236486B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a suction nozzle transfer device that uses a suction nozzle to suction a component provided at a pick-up position and transfers the same to a transfer position.

(Prior art) For example, in a die bonder, a strip of gold foil ribbon, solder ribbon, copper foil, etc. is cut into small pieces of parts, and these parts are sucked with a suction nozzle and transferred onto a lead frame to lead the parts. It is pasted onto the frame.

By the way, when picking up a component with a suction nozzle and transferring it onto a lead frame, it may be necessary to attach the component to the lead frame while rotating the component by a certain angle.

Conventionally, parts are rotated by a predetermined angle while being sucked by a suction nozzle and transferred.
For example, one disclosed in Japanese Patent Application Laid-open No. 132974/1983 is known.

This structure includes a guide rail arranged along the part from the pick-up position to the transfer position, a moving stage movable along the guide rail and rotatably supporting the suction nozzle, and a moving stage arranged along the guide rail. It consists of a rack provided and a gear fixed to the suction nozzle and meshing with the rack via an intermediate gear.

Therefore, when the movable table, that is, the suction nozzle, is transferred from the pick-up position to the transfer position, the suction nozzle rotates due to the rotation of the gears that mesh easily.

(Problems to be Solved by the Invention) In the above conventional technology, the suction nozzle is rotated using a rack and a gear, so when the distance from the pick-up position of the part to the transfer position is constant, the rotation angle of the suction nozzle is unique. Therefore, it is impossible to arbitrarily change the rotation angle of the suction nozzle, that is, the component.

Therefore, when changing the rotation angle of the suction nozzle, it is necessary to replace the rack and gear with a gear having an appropriate pitch, but this replacement is not easy.

In addition, since the mechanism relies on racks and gears, the accuracy of suction nozzle transfer directly manifests itself in variations in the rotation angle, making it impossible to obtain a highly accurate rotation angle. Also, since racks and gears are used, the cost is high.

An object of the present invention is to provide a suction nozzle transfer device that can easily change the orientation (rotation angle) of a component with high precision and can reduce the cost of the device.

(Means for Solving the Problem) The above purpose is to provide a suction nozzle that suctions parts, a guide rail disposed along a part from a pick-up position to a transfer position, and a suction nozzle that is movable along this guide rail and that A suction nozzle transfer device comprising a movable table rotatably supporting a nozzle, comprising: a friction plate disposed along the guide rail; and a circle fixed to the suction nozzle so as to be in contact with the friction plate. Achieved by a configuration including a plate, a pin implanted in the movable table, and a stopper member fixed to the suction nozzle so that its position can be adjusted so as to come into contact with the pin and restrict the rotation range of the suction nozzle. be done.

(Function) As the movable table moves, the disk fixed to the suction nozzle comes into contact with the friction plate and rotates due to the frictional force, thereby rotating the suction nozzle. In this case, the rotation range of the suction nozzle can be easily adjusted by adjusting the position of the stopper member.

(Embodiments of the Invention) The present invention will be described below with reference to illustrated embodiments. FIG. 1 is a plan view showing an embodiment in which the suction nozzle transfer device according to the present invention is applied to a ribbon piece supply device, FIG. 2 is a front view of the ribbon guide section and cutter section shown in FIG. 1, and FIG. 2 is a cross-sectional view taken along line A-A in Figure 2, Figure 4 is a cross-sectional view taken along line B-B in Figure 2,
FIG. 5 is a sectional view taken along line CC in FIG. 1.
A gold foil ribbon 1 is supplied from a ribbon spool (not shown) and is sent in the direction of arrow D. 2 is the first
The frame has a fixed rail 2a for guiding one shoulder of the gold foil ribbon 1 along the feeding direction D. 3
is movable in a direction perpendicular to the feeding direction D along a guide 4 consisting of a pair of guide members fixed to the first frame 2, and moves the other shoulder of the gold foil ribbon 1 in the feeding direction D. The movable rail 5 is a rail width adjusting plate that is swingably supported on a support shaft 6 installed in the first frame 2, and one end is in contact with the movable rail 3, and the other end is in contact with the movable rail 3. is arranged so as to come into contact with a micrometer head 7 fixed to the first pedestal 2. Reference numeral 8 denotes a tension coil spring which is applied to a spring hook 9 provided on the movable rail 3 and a spring hook 10 provided on the first mount 2, and is constantly biased in the direction in which the movable rail 3 presses the rail width adjustment plate 5. ing. As a result, the other end of the rail width adjusting plate 5 is always pressed against the micrometer head 7, and the swinging posture of the rail width adjusting plate 5 can be freely changed by adjusting the micrometer head 7.

Reference numeral 11 denotes a pitch feed roller rotatably supported by the first frame 2, which is fixed to a drive shaft 12 rotated by a motor, such as a well-known pulse motor, which rotates by an arbitrary rotation angle preset by an electric command. It is located directly below the ribbon guide path formed by the fixed rail 2a and the movable rail 3, and rotates intermittently to feed the gold foil ribbon 1 in pitches in the feeding direction D. Reference numeral 13 denotes a presser roller disposed directly above the pitch feed roller 11, and one of the levers 15 swingably supported on a support shaft 14 fixed to the first frame 2.
A tension coil spring 17 is rotatably supported on a shaft 16 fixed at one end and provided at the other end of the lever 15.
This makes it come into contact with the pitch feed roller 11. Reference numeral 18 denotes a cutter holder for the gold foil ribbon 1 provided at the end of the first mount 2, and a fixed blade 19
and a movable blade 20, and the gold foil ribbon 1 is cut into gold foil pieces by vertical movement of the movable blade 20.

Reference numeral 30 denotes a second pedestal adjacent to the first pedestal 2, which is moved up and down by a vertical movement means (not shown). 31 is a guide rail consisting of two parallel round bars fixed to the second pedestal 30; 32 is a movable table that slides along the guide rail 31; 33 is an air cylinder fixed to the second pedestal 30; The piston 33a is connected to the movable table 32 and can reciprocate the movable table 32. A suction nozzle 34 is connected to a vacuum pump (not shown) via a tube 35 to suction the gold foil piece 1a cut from the gold foil ribbon 1, and is rotatably supported by the movable table 32. 3
6 is a friction plate arranged and fixed on the second mount 30 along the guide rail 31, and 37 is a disc fixed to the suction nozzle 34 with screws 38 so as to be in contact with the friction plate 36 when the movable table 32 is moved. , 39 are wave-shaped springs which are held between a nut 40 screwed onto the suction nozzle 34 and the movable base 32, and stably hold the suction nozzle 34 relative to the movable base 32 so as to be able to rotate smoothly. 41 is a notch provided in the flange portion 34a of the suction nozzle 34; 42 is a stopper member arranged concentrically with respect to the suction nozzle 34 and fixed to the flange portion 34a with a screw 43 so as to be adjustable in the direction of rotation; A notch 44 is formed opposite to 41. 45 is a pin implanted in the movable table 32, and the notch portions 41 and 4
4.

Next, the operation of the gold foil piece supply device having such a configuration will be explained. First, the gold foil ribbon 1 is loaded, the micrometer head 7 is adjusted according to the ribbon width, and the rail width adjustment plate 5 is swung. When the movable rail 3 is thereby moved along the guide 4, a ribbon guide path of a predetermined width can be easily formed with respect to the fixed rail 2a. Thereafter, the gold foil ribbon 1 is inserted between the pitch feed roller 11 and the presser roller 13, and when the pitch feed roller 11 is rotated intermittently, the gold foil ribbon 1 is pitch fed by a predetermined length. The gold leaf ribbon 1 sent out in this way is fed to the cutters 19 and 2 by the length of the pitch feeding length.
The gold foil piece 1a is cut by 0. At this time, if it is desired to change the length of the gold foil piece 1a, the rotation angle of the pitch feed roller 11 can be changed by an electric command. Then, the second mount 30 moves downward and upward to attract the gold leaf piece 1a to the tip of the suction nozzle 34,
When the air cylinder 33 is operated, the suction nozzle 34 moves with the movement of the movable table 32 and is positioned directly above the lead frame 50. Next, the second mount 3
0 moves down to attach the gold foil piece 1a to the lead frame 50, after which the vacuum of the suction nozzle 34 is cut off, and then the second mount 30 rises.

Here, when it is necessary to attach the gold foil piece 1a to the lead frame 50 in a position rotated by a certain angle, the position of the stopper member 42 is adjusted in advance so that the opening angle of the notches 41 and 44 rotates the gold foil piece 1a. Make sure it is at an angle. As a result, as the moving table 32 moves forward, the disc 37 comes into contact with the friction plate 36 and rotates due to the frictional force.
The suction nozzle 34 is rotated. and notch 44
When it comes into contact with the pin 45, the disc 37 begins to slide against the friction plate 36 and stops rotating, and the suction nozzle 34 also stops rotating. Mobile platform 3
2, the suction nozzle 3 is moved in the same way.
4 rotates until the notch 41 comes into contact with the pin 45, and by repeating this operation, the adsorbed gold foil piece 1a can change its feeding attitude. The rotation angle for changing the posture of this gold leaf piece 1a is determined by the stopper member 4.
This can be easily done by simply making the position adjustment in step 2, so no skill is required.

(Effects of the Invention) According to the suction nozzle transfer device of the present invention, the rotation angle for changing the posture of the component can be easily changed by simply adjusting the position of the stopper member, and no skill is required.
Further, the rotation angle is determined by the range within which the stopper member is regulated by the pin, and a highly accurate rotation angle can be obtained. Moreover, since it is composed of a plate-like member and a pin, costs can be reduced.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the ribbon piece feeding device according to the present invention, FIG. 2 is a front view of the ribbon guide section and cutter section shown in FIG. 1, and FIG.
4 is a sectional view taken along line A, FIG. 4 is a sectional view taken along line BB in FIG. 2, and FIG. 5 is a sectional view taken along line C-C in FIG. 1. 31... Guide rail, 32... Moving table, 34... Adsorption nozzle, 36... Friction plate, 37...
Disc, 42...stopper member, 45...pin.

Claims (1)

[Claims] 1. A suction nozzle that suctions a component, a guide rail disposed along a part from a pick-up position to a transfer position, and a moving table that is movable along the guide rail and rotatably supports the suction nozzle. In the suction nozzle transfer device, a friction plate disposed along the guide rail, a disc fixed to the suction nozzle so as to be in contact with the friction plate, and a pin implanted in the moving table. and a stopper member fixed to the suction nozzle so that its position can be adjusted so as to come into contact with the pin and restrict the rotation range of the suction nozzle.