JP2003110294A - Substrate fixing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a substrate fixing device which can securely fix a substrate at a specific position. SOLUTION: The substrate fixing device is equipped with a backup plate (31) which is arranged on the reverse-surface side of the substrate (12) and moves up and down, a 1st fixing means (33) which is arranged on the top surface of the backup plate, a 2nd fixing means which is arranged on the top- surface side of the substrate, a driving plate (35) which moves up and down on the reverse-surface side of the backup plate, and a plurality of elastic members (36) which are interposed between the driving plate and backup plate. The 1st fixing means and 2nd fixing means fix the substrate on both its top and reverse sides by the elevation of the backup plate. Therefore, even if the substrate curves or waves or if the substrate has a difference in thickness between both front and rear edges, the backup plate and 1st fixing means can be slanted corresponding to the shape of the substrate, so that the substrate can accurately and securely be fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a substrate fixing device for fixing a substrate at a predetermined position.

[0002]

2. Description of the Related Art Conventionally, for example, an electronic component mounting apparatus for mounting an electronic component or the like on a board has a board fixing device for carrying and fixing the board to a predetermined position on a carrying path. . As shown in FIG. 6, such a substrate fixing device 100 has the following structure for fixing the substrate 101 at a predetermined position. In the following description, the conveyance direction of the substrate 101 by the belt conveyor 103 is the left-right direction, the direction orthogonal to the horizontal plane is the vertical direction, and the direction orthogonal to the horizontal direction in the horizontal plane is the front-back direction.

The substrate fixing device 100 includes a transfer rail 102 and a belt conveyor 10 which are arranged on both front and rear sides of the transfer path.
3, the backup plate 104, the support bar 105 arranged on the upper surface of the backup plate 104, the transport rail 1
A support plate 106, which is guided to move in the vertical direction by a guide member (not shown) on the 02 side, an elevation regulating member 107 arranged on the upper surface of the transport rail 102, and the like.

In order to fix the substrate 101 at a predetermined position, first, the substrate 101 is placed on the upper surface of the endless belt 103a of the belt conveyor 103, and the endless belt 103a is driven to bring the substrate 101 to a predetermined position. Transport. Then, at a predetermined position, a motor or the like (not shown) is driven to raise the backup plate 104 while maintaining the substantially horizontal state. Then, first, the support rod 105 on the backup plate 104 contacts the lower surface of the support plate 106, and the support plate 106 moves up. Next, the upper surface of the support plate 106 contacts the lower surface of the substrate 101,
Push itself upwards.

Then, the front and rear edges of the upper surface of the substrate 101 are brought into contact with the lower surface of the rising regulating member 107, whereby the substrate 10
1 is sandwiched between the rising restriction member 107 and the support plate 106 in the vertical direction and fixed at a predetermined position.

[0006]

By the way, for example, when the substrate 101 is warped or corrugated as shown in FIG. 7, or when the thickness of the front and rear side edge portions of the substrate 101 is different, the above-mentioned problem occurs. The backup plate 104
Moves up and down while maintaining a substantially horizontal state, so the support plate 1
Similarly, 06 also moves up and down while maintaining a substantially horizontal state,
1. The rising restraining member 107 and the supporting plate 10 are provided on both front and rear edges.
6 abuts unevenly, and the fixing of the substrate 101 may be insufficient.

SUMMARY OF THE INVENTION An object of the present invention is to provide a substrate fixing device which can surely fix a substrate at a predetermined position in consideration of the above problems.

[0008]

In order to solve the above-mentioned problems, a substrate fixing device (30) according to claim 1 is provided with a substrate (1).
The backup plate (31) arranged on the lower surface side of 2) and moving up and down with respect to the substrate, the first fixing means (33) arranged on the upper surface of the backup plate, and the backup plate (31) arranged on the upper surface side of the substrate. A second fixing means (34) provided, wherein the substrate is fixed from above and below both sides by the first fixing means and the second fixing means by raising the backup plate, A drive plate (35) that moves up and down on the lower surface side of the backup plate, and a plurality of elastic members (36) interposed between the drive plate and the backup plate are provided.

According to the substrate fixing device of the first aspect, since the plurality of elastic members are interposed between the drive plate and the backup plate, when the substrate is warped or corrugated, or at both front and rear edge portions of the substrate. Even if the thicknesses are different, the backup plate and the first fixing means can be tilted according to the shape of the substrate, and the substrate can be fixed accurately and reliably.

A substrate fixing device according to a second aspect is the first aspect.
The substrate fixing device as described above, wherein the backup plate is formed in a substantially rectangular shape, and the elastic members are arranged at four corners of the backup plate.

According to the substrate fixing device of the second aspect, the same effect as that of the first aspect can be obtained, and the elastic members are arranged at the four corners of the backup plate, that is, at the positions separated from the centers of the four sides of the backup plate. Therefore, a large rotational moment can be applied to the first fixing means, and the force for fixing the substrate can be increased.

A substrate fixing device according to a third aspect is the first aspect.
Or the substrate fixing device according to 2, wherein the backup plate is divided into at least two or more plate bodies (31a), each plate body is provided with at least one elastic member, and the plate bodies are joined together. Are not separated but are connected so as to maintain their integrity.

According to the substrate fixing device of the third aspect, the same effect as that of the first or second aspect can be obtained, and the backup plate is divided into at least two or more plate bodies,
Since the plate bodies are not separated from each other and are connected so as to maintain the integrity, the plate bodies are independently inclined according to the shape of the substrate, and the substrate can be more reliably fixed.

According to a fourth aspect of the present invention, there is provided the substrate fixing device according to the third aspect.
The described board fixing device is characterized in that the plates are connected to each other by an adhesive member (32) having elasticity.

According to the substrate fixing device of the fourth aspect, the same effect as that of the third aspect can be obtained, and since the plate members are connected by the adhesive member having elasticity, for example, the plate members are connected to each other. Compared with the case of connecting with a connecting means such as metal fittings, the number of man-hours for processing each plate can be reduced, and the elastic force of the adhesive member always maintains the horizontal state of the backup plate. Therefore, it is possible to easily raise the substrate while maintaining the horizontal state.

According to a fifth aspect of the present invention, there is provided a substrate fixing device as set forth in the first aspect.
The board fixing device according to any one of
The elastic member is a spring.

According to the substrate fixing device of the fifth aspect, the same effect as that of any one of the first to fourth aspects can be obtained, and since the spring is used as the elastic member, for example, a machine such as a cylinder is used as the elastic member. It is possible to reduce the number of parts and the cost of the board fixing device as compared with the case of using the mechanical means.

A substrate fixing device according to a sixth aspect is the first aspect.
The board fixing device according to any one of
The elastic member is an air cylinder.

According to the substrate fixing device of the sixth aspect, the same effect as that of any one of the first to fourth aspects can be obtained, and since the air cylinder is used as the elastic member, a large rotation moment is first fixed. The force can be applied to the means, and the force for fixing the substrate can be increased.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION A case where the substrate fixing device according to the present invention is applied to a general electronic component mounting device will be described below.

As shown in FIG. 1, the electronic component mounting apparatus 10
Is an electronic component supply unit 11 (tape feeder) including electronic components, a suction nozzle 13 that vacuum-suctions an electronic component and mounts it at a predetermined position on the substrate 12, a transport unit 14 for transporting the substrate 12, and a transport unit. Two support beams 15 provided so as to straddle 14, a beam 16 spanned between the two support beams 15 so as to be movable in the left-right direction,
A head portion 17 is attached so as to be movable in the length direction of the beam 16, supports the suction nozzle 13, and moves and rotates the suction nozzle 13 up and down, and a movement of the beam 16 in the front-back direction and a head portion 17. A drive unit 20 including a rotary motor 18 and a timing belt 19 for moving the head in the left-right direction, a position detection unit 21 for detecting the position of the head unit 17, a control unit 22 for controlling the drive of the drive unit, A predetermined position (the suction nozzle 13
Position where electronic components are mounted on the board 12 by
A substrate fixing device 30 (see FIG. 2) and the like for fixing the substrate 12 that has been transported to is generally configured. Since the mounting operation of the electronic component on the substrate 12 by the electronic component mounting apparatus 10 is well known, the description thereof will be omitted and the transporting means 14 and the substrate fixing device 30 will be mainly described below.

As shown in FIG. 2, the transfer means 14 is provided to transfer the substrate 12, and is generally constituted by a transfer rail 14a, a belt conveyor 14b, a rotary motor (not shown) and the like. The transport rails 14a are disposed on the left and right side edge portions of the substrate transport path, and a substantially rectangular support plate 33b provided for supporting the left and right side edge portions of the substrate 12 from the lower surface side is slidably attached. Has been. Pulleys 14c are attached to the front and rear ends of the inside of the transport rail 14a, and an endless belt 14d (partially cut away is shown) is wound around these pulleys 14c to form a belt conveyor 14
It forms part of b. Then, by driving a rotary motor (not shown), the endless belt 14d is rotated via the pulley 14c, and the substrate 12 placed on the upper surface of the endless belt 14d is transported.

2 to 4, the substrate fixing device 30 includes a backup plate 31, an adhesive member 32, a first fixing means 33, a second fixing means 34, a drive plate 35, an elastic member 36, and the like. It is roughly composed.

The backup plate 31 is used to move the first fixing means 33 up and down.
It is a substantially rectangular plate body 31 a that moves up and down with respect to the substrate 12. The backup plate 31 is disposed inside the transport rail 14a and is disposed substantially horizontally on the lower surface side of the substrate 12 which has been transported to a predetermined position. Backup plate 3
1 is a substantially quarter, that is, four plate members 31a having substantially the same shape
The plate members 31a are connected to each other so that the plate members 31a are not separated from each other by an adhesive member 32 having elasticity at the side surface portions thereof and maintain their integrity. Here, the elastic adhesive member 32 may be, for example, a well-known elastic adhesive such as a modified silicone / epoxy resin adhesive or an elastic rubber to which a double-sided adhesive tape is attached.

The first fixing means 33 is provided to fix the substrate 12 from below, and includes a support rod 33a and a support plate 33.
b. The support bar 33a is a substantially columnar bar-shaped member provided on both front and rear edges of the upper surface of the backup plate 31, and at least one support bar 33a is provided on each plate member 31a constituting the backup plate 31. Then, each support rod 33a moves up and down together with the backup plate 31, and the upper end surface of the support rod 33a is at a predetermined position in the vertical direction.
It has a structure of abutting on the lower surface of b.

When the substrate 12 is fixed in the vertical direction, the support plate 33b is in contact with the lower surface of the substrate 12 at a predetermined position in the vertical direction, and is provided to support the substrate 12 in a state of being pushed upward. It is a substantially rectangular plate. The support plate 33b is provided on each side surface of the transport rail 14a, and is supported by a guide member (not shown) attached to the transport rail 14a so as to be movable in a substantially vertical direction within a certain range.

The second fixing means 34 is provided for fixing the substrate 12 from above, and is provided with a rising regulating member 34a. When the board 12 is fixed, the rising restricting member 34a
It is a plate body that is in contact with the upper surface of the substrate 12 and that regulates the upward movement of the substrate 12 and has a substantially rectangular shape in a plan view.
The rising restricting member 34a is joined to the upper edge portion of each of the transport rails 14a, and the portion extending toward the transport path covers the upper side of the front and rear side edges of the substrate 12 transported to a predetermined position. .

The drive plate 35 is the backup plate 31.
Is a substantially rectangular plate body that is disposed substantially horizontally inside the transport rail 14a and below the backup plate 31 in order to vertically move. A drive device (not shown) is disposed below the drive plate 35, and the drive plate 35 is vertically moved by the drive device. As the drive unit, for example, a well-known drive unit such as an air cylinder or a combination of a rack and a pinion is used.

The elastic member 36 is interposed between the drive plate 35 and the backup plate 31 to transmit the vertical movement (driving force) of the drive plate 35 to the backup plate 31.
This is a member for independently driving (moving) within a certain range in a state where the plate bodies 31a constituting the backup plate 31 are maintained in a certain degree of integrity. In the present embodiment, the elastic member 36 is a spring (compression spring).
Is used. At least one spring 36 is arranged on each plate body 31a constituting the backup plate 31, and each spring 36 is joined to each plate body 31a at its upper end portion and at its lower end portion. It is joined to the drive plate 35. In the present embodiment, springs 36 are provided at the four corners of backup plate 31.

Next, the operation of the substrate fixing device 30 having such a structure will be described. The substrate 12 is assumed to have been transported to a predetermined position by the transport means 14. First, by driving the drive means, the drive plate 35 moves upward. Then, the driving force of the driving plate 35 is the spring 36.
Is transmitted to each plate 31a via. As described above, since the plate members 31a are connected to each other by the adhesive member 32 so as to maintain their integrity, the integrated plate members 31a, that is, the backup plate 31 move upward while maintaining a substantially horizontal state. To do.

Then, the upper end surface of the support rod 33a, which has risen up to a predetermined position in the vertical direction together with the backup plate 31, comes into contact with the lower surface of the support plate 33b. Then, the support rod 33a and the support plate 33b move integrally as a unit, and the upper surface of the support plate 33b contacts the lower surface of the substrate 12.
Then, by further raising the support plate 33b from this state, the substrate 12 is pushed upward, and when the substrate 12 rises to a predetermined height, the upper surface of the substrate 12 abuts on the lower surface of the elevation regulating member 34a, and the substrate 12 Is fixed.

Here, as shown in FIG. 4, a case will be described in which, for example, a portion of the substrate 12 that abuts against the lift restricting member 34a and the support plate 33b is warped or corrugated.
When the upper surface of the substrate 12 pushed up by the support plate 33b comes into contact with the lower surface of the lift restricting member 34a, the substrate 1
Due to the warping of 2 and the corrugation, the lower surface of the substrate 12 abuts on the upper surface of the support plate 33b at a plurality of positions, while the substrate 12
The upper surface of is in contact with the upper surface of the support plate 33b only at one place, that is, only the portion where the substrate 12 protrudes most upward.

In this state, the substrate 12 is vertically movable within a very small range, and the substrate 12 is not completely fixed. When the support plate 33b is further raised from this state, as described above, the plate members 31a constituting the backup plate 31 and the support rods 33a arranged on the plate members 31a are fixed by the spring 36. Since it is supported so that it can be driven independently within the range of, the portion of the board 12 that is in contact with the rise restricting member 34a from the specific plate 31a and the support rod 33a via the support plate 33b. A force to rotate (tilt) acts as the center.

Then, finally, the upper surface of the substrate 12 is inclined to a position where it abuts against a plurality of positions on the lower surface of the lift restricting member 34a, and the fixing of the substrate 12 is completed. When the substrate 12 is fixed, the spring 3 and the reaction force from the substrate 12 transmitted via the support rod 33a to the backup plate 31.
The repulsive force of 6 acts, and each plate body 31a constituting the backup plate 31 is stationary in an inclined state so that these two forces are almost offset.

Further, when the thicknesses of the portions of the board 12 that come into contact with the lift restricting member 34a and the support plate 33b are different at the front and rear side edge portions of the board 12, the four plate members 31a constituting the backup plate 31 are formed. Among them, the two plate members 31a located on the front side are driven almost integrally, and similarly, the two plate members 31a located on the rear side are also driven substantially integrally. Then, the front plate body 31a and the rear plate body 31a are independently inclined so as to correspond to different thicknesses of the board 12, whereby the board 12 is fixed.

According to the substrate fixing device 30 shown in this embodiment, when the substrate 12 is warped or corrugated, or the substrate 1
Even if the front and rear side edge portions of 2 have different thicknesses, the substrate 12
Can be fixed accurately and reliably. Further, since the springs 36 are arranged at the four corners of the backup plate 31, that is, at positions away from the centers of the four sides of the backup plate 31, a large rotational moment can be applied to the support plate 33b, and the substrate 12 is fixed. The power to do can be increased.

Further, since the backup plate 31 is divided into four plate members 31a having substantially the same shape, and the plate members 31a are connected to each other so as not to be separated from each other so as to maintain their integrity, each plate member 31a. The substrate 12 can be tilted independently according to the shape of the substrate 12 to more securely fix the substrate 12. Further, since the plate members 31a are connected to each other by the adhesive member 32 having elasticity, for example, as compared with the case where the plate members 31a are connected to each other by using a connecting means such as a metal fitting, the plate members 31a are connected to each plate member 31a. It is possible to reduce the number of man-hours required for the processing, and the elastic force of the adhesive member 32 allows the backup plate 31 to be maintained in a horizontal state at all times. Therefore, it is easy to raise the substrate 12 in a horizontal state. Become.
Further, since a spring is used as the elastic member 36, for example,
Compared with the case where a mechanical means such as a cylinder is used as the elastic member 36, the number of parts and cost of the substrate fixing device 30 can be suppressed.

In this embodiment, the backup plate 31 is composed of four plate members 31a, but the present invention is not limited to this, and it is composed of two or more plate members 31a. Alternatively, as shown in FIG. 5, the backup plate 31 may be
It may be composed of one plate. In this case, the manufacturing process of the backup plate 31 can be simplified. Further, although the plate members 31a are connected to each other by the adhesive member 32 having elasticity, the invention is not limited to this. For example, a hinge or a plate spring may be provided between two adjacent plate members 3a.
You may arrange | position so that the side edge part of 1a may be covered.

Further, although the elastic members 36 are arranged at the four corners of the backup plate 31, the elastic members 36 are not limited to this and can be arranged at any positions. In addition, the elastic member 36
However, not limited to springs, elastic rubber, sponge-like members, or mechanical means such as an air cylinder may be used. When a mechanical means is used, a larger rotation moment can be applied to the support plate 33b and a force for fixing the substrate 12 can be increased, as compared with the case where a spring is used as the elastic member 36. Further, the shapes of the backup plate 31 and the drive plate 35 are not limited to the substantially rectangular shape, and the shapes and positions of the members forming the first fixing means 33 and the second fixing means 34 are arbitrary. Can be changed to.

Further, a plurality of rod-shaped members (backup pins) are provided on the upper surface of the backup plate 31 for preventing the downward deflection of the substrate 12 by contacting the lower surface of the substrate 12 in a fixed state. Also good.
Further, although the case where the substrate fixing device 30 is applied to the electronic component mounting device 10 has been described in the present embodiment, the present invention is not limited to this, and the substrate 12 is predetermined such as a dispenser for applying an adhesive to the substrate 12. It can be applied to any device that needs to be fixed in position.

[0041]

According to the substrate fixing device of the first aspect,
Since the plurality of elastic members are interposed between the drive plate and the backup plate, the backup plate and the first fixing means can be used even when the substrate has a warp or corrugation or the front and rear edges of the substrate have different thicknesses. Can be tilted according to the shape of the substrate, and the substrate can be fixed accurately and reliably.

According to the substrate fixing device of the second aspect, the same effect as that of the first aspect can be obtained, and the elastic members are arranged at the four corners of the backup plate, that is, at the positions separated from the centers of the four sides of the backup plate. Therefore, a large rotational moment can be applied to the first fixing means, and the force for fixing the substrate can be increased.

According to the substrate fixing device of the third aspect, the same effect as that of the first or second aspect can be obtained, and the backup plate is divided into at least two or more plate bodies,
Since the plate bodies are not separated from each other and are connected so as to maintain the integrity, the plate bodies are independently inclined according to the shape of the substrate, and the substrate can be more reliably fixed.

According to the substrate fixing device of the fourth aspect, the same effect as that of the third aspect can be obtained, and since the plate members are connected by the adhesive member having elasticity, for example, the plate members are connected to each other. Compared with the case of connecting with a connecting means such as metal fittings, the number of man-hours for processing each plate can be reduced, and the elastic force of the adhesive member always maintains the horizontal state of the backup plate. Therefore, it is possible to easily raise the substrate while maintaining the horizontal state.

According to the substrate fixing device of the fifth aspect, the same effect as that of any one of the first to fourth aspects can be obtained, and since the spring is used as the elastic member, for example, a machine such as a cylinder is used as the elastic member. It is possible to reduce the number of parts and the cost of the board fixing device as compared with the case of using the mechanical means.

According to the substrate fixing device of the sixth aspect, the same effect as that of any one of the first to fourth aspects can be obtained, and since the air cylinder is used as the elastic member, a large rotation moment is first fixed. The force can be applied to the means, and the force for fixing the substrate can be increased.

[Brief description of drawings]

FIG. 1 is a perspective view of essential parts showing an electronic component mounting apparatus according to an embodiment.

FIG. 2 is a main part perspective view showing the structure of a substrate fixing device.

FIG. 3 is a perspective view of an essential part showing the structure of the substrate fixing device.

FIG. 4 is a front view of a main portion showing a fixed state of a substrate.

FIG. 5 is a front view of a main portion showing a fixed state of a substrate.

FIG. 6 is a perspective view of an essential part showing the structure of a conventional substrate fixing device.

FIG. 7 is a front view of a main portion showing a fixed state of a substrate.

[Explanation of symbols]

12 substrates 30 substrate fixing device 31 Backup plate 31a plate 32 Adhesive member 33 First fixing means 34 Second fixing means 35 drive plate 36 Elastic member

Claims (6)

[Claims] 1. A backup plate which is arranged on the lower surface side of the substrate and moves up and down with respect to the substrate, first fixing means which is arranged on the upper surface of the backup plate, and arranged on the upper surface side of the substrate. A second fixing means for fixing the substrate from above and below both sides by the first fixing means and the second fixing means by raising the backup plate, wherein the lower surface of the backup plate. A substrate fixing device comprising: a drive plate that moves up and down on a side; and a plurality of elastic members interposed between the drive plate and the backup plate. 2. The substrate fixing device according to claim 1, wherein the backup plate is formed in a substantially rectangular shape, and the elastic members are arranged at four corners of the backup plate. . 3. The substrate fixing device according to claim 1, wherein the backup plate is divided into at least two or more plate bodies, and each plate body is provided with at least one elastic member. The board fixing device is characterized in that the respective plate bodies are connected to each other so as not to be separated from each other so as to maintain their integrity. 4. The substrate fixing device according to claim 3, wherein the plate bodies are connected to each other by an adhesive member having elasticity. 5. The substrate fixing device according to claim 1, wherein the elastic member is a spring. 6. The substrate fixing device according to claim 1, wherein the elastic member is an air cylinder.