JP3461664B2 - Substrate posture correction device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to an apparatus for correcting a posture of a substrate for correcting a horizontal posture of the substrate prior to sending the substrate to a working device. It is. 2. Description of the Related Art A liquid crystal panel, which is frequently used as a display of electronic equipment, is assembled by bonding electronic components to three sides thereof. The liquid crystal panels are sent one by one to a bonding apparatus to bond the electronic components. In this case, the liquid crystal panels need to be sent to the bonding apparatus in a correct posture. A posture correcting device for correcting is provided. Hereinafter, a conventional substrate posture correcting apparatus will be briefly described. FIGS. 5A and 5B are explanatory views of the operation of the conventional substrate posture correcting apparatus, in which FIGS. 5A and 5B show the substrate before correction and the substrate after correction in plan view, respectively.
In FIG. 5A, a total of four pins 2a, 2b, 2c and 2d are provided as contact members in four directions of the substrate 1. The horizontal attitude of the substrate 1 is broken as shown in the figure. The substrate 1 of this example is a liquid crystal panel. Next, the four pins 2a to 2d are advanced toward the substrate 1, and the substrate 1 is chucked from four directions to correct the horizontal attitude of the substrate 1 (FIG. 5).
(B)). The substrate whose posture has been corrected in this manner is sent to a working device such as a bonding device by a transfer unit such as a pickup head, and a bonding operation of an electronic component is performed. Such correction of the posture of the substrate
The process is performed not only for the liquid crystal panel but also for other substrates such as a plasma panel and a printed circuit board. The above-mentioned conventional method corrects the posture by chucking the substrate 1 from four directions by advancing four pins 2a to 2d with respect to the substrate 1. However, among the four pins 2a to 2d, the substrate 1
The two pins 2a and 2c opposed to each other with respect to are driven by a first motor, and the other two pins 2b and 2d are
Driven by the four motors 2a to 2d
Was moved forward and backward with respect to the substrate 1. That is, the conventional substrate posture correcting apparatus requires two power units (motors) and also requires these synchronization means.
There has been a problem that the entire structure is complicated and the cost is increased. Accordingly, the present invention provides an apparatus for correcting the posture of a substrate, which can correct the posture of the substrate by driving a contact member contacting the substrate from four directions with one power unit. Aim. According to the present invention, there is provided a mounting portion for a substrate, and contact members which contact the four sides of the substrate mounted on the mounting portion from four directions. Of the contact members of
An advancing and retracting mechanism for advancing and retracting abutting members opposed to each other across the substrate, and an advancing and retracting mechanism for advancing the abutting member toward the substrate to chuck the substrate from four directions; And a single power unit. The forward and backward mechanisms are provided orthogonal to each other.
A first frame and a second frame,
The frame and the second frame are installed facing each other.
The first rack and the second rack which are
To engage the first and second racks of the frame
A step gear, a first rack of the second frame and a second
A lower gear engaged with the rack, and the power unit
A cylinder and a cylinder connected to a rod of this cylinder.
And adjust one end of the wire to the first
Connected to the first rack of the frame
Connecting the other end to the first rack of the second frame,
The substrate is pinched by the projecting / retracting operation of the rod.
After the contact members facing each other are advanced in the opposite directions
I tried to retreat. [0008] According to the present invention, the contact member in four directions can be simultaneously advanced with respect to the four sides of the substrate by one power unit, and the posture of the substrate can be corrected. . An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a substrate posture correcting device according to an embodiment of the present invention, FIG.
4 and FIG. 4 are plan views of the same. First, the overall structure of the substrate posture correcting apparatus will be described. 1 and 2, reference numeral 10 denotes a base,
A support 11 is erected in the center. On the support 11, a first frame 12 a long in the X direction and a second frame 12 b long in the Y direction are provided orthogonal to each other. First frame 12a and second frame 12b
Has the same structure, and first racks 14a and 15a and second racks 14b and 15b are provided to face each other on the inner surface in the longitudinal direction. The planar shape of the first racks 14a and 15a is L-shaped, and the first pin 1
6a and 17a are provided upright. Also, the second rack 14
The plane shapes of b and 15b are also L-shaped, and second pins 16b and 17b are provided upright at the bent portions. The first frame 12a and the second frame 1
2b, tongue pieces 18a and 18b extend, and tongue pieces 1
Pins 19a and 19b are erected on 8a and 18b. The second pin 16b and the pin 19a are connected to a spring 20a.
The spring 20a is connected to the second pin 16
b in a direction away from the first pin 16a (X1 direction). The second pin 17b and the pin 19b are connected by a spring 20b, and the second pin 17b is resiliently moved away from the first pin 17a (Y1 direction). These pins 16a to 17b are contact members that contact four sides of the substrate 1. The substrate 1 is mounted on a disk-shaped mounting portion 21. The mounting portion 21 is provided on a shaft 22 erected on the upper surface of the column 11. An upper gear 23 and a lower gear 24 are mounted on the shaft 22. Upper gear 23
Are engaged with a first rack 14a and a second rack 14b provided inside the first frame 12a. The lower gear 24 is engaged with a first rack 15a and a second rack 15b provided inside the second frame 12b. Each of the racks 14a to 15b moves in the longitudinal direction, and the upper gear 23 and the lower gear 24 rotate, so that the first pins 16a, 17a and the second pins 16b,
Reference numeral 17b denotes a mechanism for simultaneously moving forward and backward in the opposite direction, and the racks 14a to 15b, the upper gear 23, and the lower gear 24 constitute a mechanism for moving the pins 14a to 15b forward and backward. At a corner of the base 10, a cylinder 30 as a power unit is installed. A block 32 is connected to the tip of the rod 31 of the cylinder 30. Block 3
A rotating shaft 33 is provided upright at the tip of the rotating shaft 3.
A first pulley 34 is connected to the upper part 3. On the side of the first pulley 34, a second pulley 35 is provided. The first pulley 34 and the second pulley 35 have a wire 3
6 is tuned. As shown in FIG. 1, one end of the wire 36 is attached to a first arm 37a extending from the first rack 14a, and the other end of the wire 36 extends from the first rack 15a. Second arm 37b
Mounted on The apparatus for correcting the posture of a substrate is constructed as described above, and its operation will be described below. FIG. 3 shows an initial state in which the substrate 1 is mounted on the mounting section 21.
The description of the means for mounting the substrate 1 on the mounting portion 21 is omitted. As shown in FIG. 3, when placing the substrate 1 on the placing portion 21, the first pins 16a, 17a and the second pins 16a
b and 17b have receded outward. Further, as shown, the posture of the substrate 1 is slightly distorted in the counterclockwise direction. In this state, the first pin 16a and the second pin 16b are located at positions sandwiching the substrate 1 from two directions in the X direction, and the first pin 17a and the second pin 17b are connected to the substrate 1 in the Y direction. At a position sandwiched from two directions. When the substrate 1 is mounted on the mounting portion 21, the rod 31 of the cylinder 30 is projected in the direction A in FIG. Then, the first pulley 34 moves in the same direction A. Then, the first arm 37a is pulled in the same direction A by the wire 36, and the first pin 16a advances in the A direction toward the substrate 1. Then, the first rack 14a also moves in the same direction A, and the upper gear 23 rotates. When the upper gear 23 rotates, the second rack 14b engaged with the upper gear 23 rotates.
Moves in the counterclockwise direction B, and the second pin 16b advances toward the substrate 1 against the spring force of the spring 20a. Thereby, two opposing sides of the substrate 1 in the X direction are chucked by the first pin 16a and the second pin 16b (FIG. 4).
See). In FIG. 3, when the first pulley 34 moves in the direction of arrow A, the second arm 37b
6 to move in the direction of arrow C. Then, the first rack 15a moves in the same direction C, whereby the lower gear 24 rotates, and the second rack 15b moves in the direction of arrow D. Therefore, like the first pins 16a and 17a, the second pins 16b and 17b also advance toward two sides of the substrate 1 and chuck two sides in the Y direction (see FIG. 4). As described above, the rod 31 of the cylinder 30
When all the pins 16a, 17a, 16b,
17b advances toward the substrate 1, chucks the substrate 1 from four directions, and corrects its posture. Next, when the rod 31 of the cylinder 30 is retracted, the second racks 14b and 15b are moved in the opposite direction by the spring force of the springs 20a and 20b, whereby the upper gear 23 and the lower gear 24 are also moved in the opposite direction. Rotate. Then, the first racks 14a, 1
5a also moves in the opposite direction, and all pins 16a, 1
6b, 17a and 17b retract in the opposite direction to release the chucked state of the substrate 1. The moving direction of each member when releasing the chuck state of the substrate 1 is indicated by an arrow in FIG. The substrate 1 whose horizontal position has been corrected as described above is sent to a working device such as a bonding device by a transfer means (not shown) such as a pickup head. According to the present invention, the contact member for chucking the substrate can be advanced and retracted by one power unit to correct the posture of the substrate, thereby simplifying the entire structure. Can be. In addition, since the four contact members are driven by the same power unit and pressed against the substrate, the substrate can be reliably chucked with uniform force from four directions.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a substrate posture correcting apparatus according to an embodiment of the present invention. FIG. 2 is a side cross-sectional view of a substrate posture correcting apparatus according to an embodiment of the present invention. 3 is a plan view of a substrate posture correcting apparatus according to one embodiment of the present invention. FIG. 4 is a plan view of a substrate posture correcting apparatus according to one embodiment of the present invention. Description of operation [Description of reference numerals] 1 Board 12a First frame 12b Second frame 14a, 15a First rack 14b, 15b Second rack 16a, 17a First pin 16b, 17b Second pin 20a, 20b Spring 21 Mounting part 23 Upper gear 24 Lower gear 30 Cylinder 34 First pulley 35 Second pulley 36 Wire

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B23P 9/00 301 B23P 9/00 302 B65H 9/08

Claims (1)

(1) A substrate posture correcting device for correcting a horizontal posture of a substrate, comprising: a substrate mounting portion; and a substrate mounting device mounted on the substrate mounting portion. An abutting member that abuts the four sides from four directions; an advancing and retreating mechanism for advancing and retracting abutting members that oppose each other across the substrate in opposite directions; A power unit for driving the advance / retreat mechanism to advance the contact member toward the substrate for chucking , wherein the advance / retreat mechanism is provided with a first
Frame and second frame, and first and second frames
The first frame is provided opposite to each other on the second frame.
And a second rack, and the first frame
An upper gear engaged with the first rack and the second rack;
Engaging the first rack and the second rack of the second frame
To and a lower gear, also the power unit is a cylinder, lock of the cylinder
Adjusts the wire to the pulley connected to the
Connecting one end to a first rack of the first frame;
The other end of this wire is connected to the first frame of the second frame.
Connected to the rack, and the rod
Contact members facing each other with the substrate interposed therebetween.
An apparatus for correcting a posture of a substrate, wherein the apparatus is configured to move forward and backward in opposite directions .