JP5308551B2 - Moving table positioning device and screen printing machine - Google Patents

Description

  The present invention relates to a moving table positioning device and a screen printing machine.

  Conventional positioning of a moving table that moves in the horizontal direction and the vertical direction requires that a horizontal positioning mechanism and a vertical positioning mechanism be provided independently.

JP 2004-195620 A JP 2011-112625 A

We would like to provide a moving table positioning device that positions a moving table that moves in the horizontal and vertical directions with high accuracy.
It is also desirable to provide a moving table positioning device that simplifies the structure and reduces the number of parts, and a moving table positioning device with improved assembly.

The moving table positioning device according to the present invention is:
In the moving table positioning device for positioning the moving table by moving the moving table in the horizontal and vertical directions with respect to the gantry,
A moving table having a table lower portion and a table upper portion;
An inclined slide mechanism provided between the table lower portion and the table upper portion, and attached to the table lower portion so as to be movable in a predetermined inclination direction;
An inclination positioning part provided between the table lower part and the table upper part, for positioning the table upper part moving toward the lower side in the predetermined inclination direction at a predetermined position with respect to the table lower part;
A horizontal slide mechanism provided between the table lower part and the gantry and attached to the table so that the lower part of the table can be moved laterally;
A longitudinal guide provided at a position where it abuts the upper part of the table;
A drive mechanism for horizontally sliding the moving table by attaching the table lower portion of the moving table so that the lower side of the predetermined inclination direction is the vertical guide side;
Tilt positioning by controlling the drive mechanism and sliding the table lower part horizontally toward the vertical guide from the position where the table upper part does not contact the vertical guide, and pressing the table upper part against the vertical guide. And a control unit for moving the table upper part in the vertical direction by moving the table upper part positioned at a predetermined position by the unit upward in the predetermined inclination direction.

  The moving table positioning device further includes a pressurizing unit that is provided between the table lower part and the table upper part and presses the table upper part with a predetermined pressure toward the lower side of the predetermined inclination direction with respect to the table lower part. It is characterized by that.

The longitudinal guide has a vertical surface,
The table upper part has a roller that contacts the vertical surface of the longitudinal guide and rotates as the table upper part moves upward.

The table top has a vertical surface,
The vertical guide has a roller that abuts on a vertical surface of the table upper portion and rotates as the table upper portion moves upward.

  The tilt positioning unit determines a distance between the table lower portion and the table upper portion in the predetermined tilt direction.

  The control unit horizontally slides the table upper part from the position away from the vertical guide toward the vertical guide, and temporarily stops the horizontal slide immediately before the table upper part of the moving table contacts the vertical guide. After that, the lower part of the table is horizontally slid again and the upper part of the table is pressed against the vertical guide.

The table lower portion has an inclined surface with an inclination angle α (α <90 degrees), and a lower positioning surface orthogonal to the inclined surface,
The table upper portion has an inclined surface with an inclination angle α and an upper positioning surface orthogonal to the inclined surface,
The tilt positioning part has a lower stopper fixed at the upper and lower center of the lower positioning surface and an upper stopper fixed at the upper and lower center of the upper positioning surface.

The lower portion of the table has a saw blade-shaped front saw blade portion and a rear saw blade portion having an inclined surface with an inclination angle α (α <90 degrees),
The lower positioning surface is behind the front saw blade,
The upper part of the table has a front leg and a rear leg,
The upper positioning surface is in front of the rear leg,
The lower stopper is between the front and rear saw blades,
The upper stopper is located between the front leg and the rear leg.

  The screen printing machine according to the present invention includes a moving table positioning device.

  According to the present invention, since it is not necessary to provide a lateral positioning mechanism and a vertical positioning mechanism independently, the structure can be simplified and the number of parts can be reduced, and the assemblability is improved.

It is a front view of the position before a movement of the movement table positioning device of this Embodiment 1. It is an AA direction side view of the movement table positioning device of this Embodiment 1. It is a BB direction side view of the movement table positioning device of this Embodiment 1. It is a figure which shows the horizontal movement completion position of the movement table positioning device of this Embodiment 1. It is a figure which shows the vertical movement completion position of the movement table positioning device of this Embodiment 1. It is inclination explanatory drawing of the movement table positioning device of this Embodiment 1. It is a front view of the position before a movement of the movement table positioning device of this Embodiment 2. It is a CC direction side view of the movement table positioning device of this Embodiment 2. It is a DD direction side view of the movement table positioning device of this Embodiment 2. It is a figure which shows the screen printing machine using the movement table positioning apparatus of this Embodiment 3.

Embodiment 1 FIG.
FIG. 1 is a front view of a moving table positioning apparatus 100 according to the first embodiment.
In the figure, it is assumed that the left-right direction (X direction, horizontal direction), the up-down direction (Z direction, vertical direction), and the depth direction (Y direction, horizontal direction) orthogonal to the drawing are orthogonal.
The moving table positioning device 100 includes a gantry 10 and a moving table 20.
Inside the gantry 10 is a drive mechanism 80 and a control unit 11. The control unit 11 controls the drive mechanism 80.
A vertical guide 12 stands upright on the top of the gantry 10. The vertical guide 12 has a vertical surface 13 on the moving table 20 side.

The moving table 20 has a table lower part 30 and a table upper part 40.
A connection portion 31 is provided at the lower portion of the table lower portion 30, and the connection portion 31 is fixed to the driving timing belt 82.
Due to the rotation of the drive servo motor 81, the drive timing belt 82 moves to the left and right, and the table lower portion 30 slides in the horizontal direction via the connecting portion 31.

FIG. 1 shows a case where the movement table 20 is at the pre-movement position P1.
By the forward / reverse rotation of the drive servo motor 81, the moving table 20 can move in the lateral direction (forward / reverse direction) between the pre-movement position P1 and the lateral movement completion position P2.
An upper saw blade portion 35 and a rear saw blade portion 36 having a saw blade shape are provided on the upper portion of the table lower portion 30. Both the front saw blade part 35 and the rear saw blade part 36 have inclined surfaces (sliding surfaces) of a predetermined angle inclined forward.

The table upper part 40 has a jig plate 41, an alignment part 42, and a table skew part 43.
The jig plate 41 is a flat plate on which a workpiece such as a printed board is placed.
The alignment unit 42 is an XYθ positioning mechanism that adjusts the XYθ direction of the jig plate 41.
The table skew section 43 is attached to the table lower portion 30 so as to be slidable in the tilt direction.
The table skew portion 43 has a roller 44 at a height position facing the vertical surface 13. The roller 44 protrudes forward from the lower front surface 38 of the table lower portion 30.
The table skew part 43 has a front leg 45 and a rear leg 46.

  The tilt slide mechanism 50 includes a tilt linear motion slider 51 and a tilt rail 52 below the right front leg 45 of the moving table 20. The tilt slide mechanism 50 includes a tilt linear motion slider 53 and a tilt rail 54 below the rear leg 46 on the left side of the moving table 20.

The tilting linear motion slider 51 and the tilting linear motion slider 53 are linear guides that are tilted and attached to the front leg 45 and the rear leg 46 below the table skew portion 43.
The inclined rail 52 and the inclined rail 54 are guide rails that are attached to the inclined surfaces of the front saw blade part 35 and the rear saw blade part 36 at the upper part of the table lower part 30.

The tilt positioning unit 60 has an upper stopper 61 and a lower stopper 62.
The upper stopper 61 is a stopper attached to the lower portion of the table skew portion 43 so as to be inclined obliquely downward to the right.
The lower stopper 62 is a stopper attached to the upper portion of the table lower portion 30 so as to be inclined obliquely upward to the left. The lower stopper 62 is fixed to the lower positioning surface 37 between the front saw blade part 35 and the rear saw blade part 36 of the table lower part 30.

  The upper stopper 61 and the lower stopper 62 face each other, and are attached to the position where the table upper portion 40 is to be positioned with respect to the table lower portion 30 with high accuracy. The upper stopper 61 and the lower stopper 62 are made of steel that does not deform, so that distortion and positional deviation do not occur. Therefore, the table lower part 30 is accurately positioned with respect to the table upper part 40 by the stopper.

  Either the upper stopper 61 or the lower stopper 62 has a screw mechanism, and the distance in the tilt direction between the table lower portion 30 and the table upper portion 40 can be accurately adjusted by adjusting the screwing amount of the screw. .

The lateral slide mechanism 70 includes a lateral movement linear motion slider 71 and a lateral rail 72.
The lateral movement linear slider 71 is a linear guide attached horizontally to the lower portion of the table lower portion 30.
The horizontal rail 72 is a guide rail attached horizontally to the upper part of the gantry 10.

The drive mechanism 80 includes a drive servo motor 81 and a drive timing belt 82.
The drive servo motor 81 is a digital servo motor that rotates by a predetermined angle in accordance with a pulse signal from the control unit 11.
The driving timing belt 82 fixes the connecting portion 31 at a predetermined position.

The pressure unit 90 includes a tension coil spring 91.
The tension coil spring 91 is a spring that spans the side surfaces of the table lower portion 30 and the table upper portion 40 and attracts the table lower portion 30 and the table upper portion 40 in an inclined direction.
The table lower portion 30 and the table upper portion 40 attracted by the tension coil spring 91 are positioned at a predetermined distance by the tilt positioning portion 60.

  In addition, since the table upper part 40 slides in the inclination direction by the weight of the table upper part 40, when the weight of the table upper part 40 is sufficiently large, the pressure unit 90 may not be provided.

FIG. 2 is a side view in the AA direction of the moving table positioning device of FIG. 1 according to the first embodiment.
As shown in FIG. 2, the table skew part 43 has front legs 45 at both left and right ends. The rear legs 46 are also at the left and right ends. That is, the table upper part 40 is a table supported by four legs.

  Further, the roller 44, the inclined slide mechanism 50, the lateral slide mechanism 70, and the pressure unit 90 are also provided at the left and right ends.

  Thus, since each part exists in right and left, the horizontalness of the jig | tool plate 41 is reliably maintained.

  In FIG. 2, there is only one connecting portion 31 and driving timing belt 82 in the center, but they may be on the left and right.

FIG. 3 is a side view in the BB direction of the moving table positioning device of FIG. 1 according to the first embodiment.
As shown in FIG. 3, the longitudinal guides 12 are on the left and right. The interval between the two rollers 44 and the interval between the two vertical surfaces 13 are the same.

  As described above, in the moving table positioning device 100, the moving table 20 includes the four parts of the jig plate 41, the alignment unit 42, the table skewing unit 43, and the table lower part 30.

  In the positioning operation of the moving table 20, the table skew section 43, the table lower portion 30, the vertical guide 12 attached to the gantry 10, the drive servo motor 81 that can drive the table and control the table position, and the transmission A driving timing belt 82 is used.

The table skew section 43 is connected to the table lower portion 30 via the tilting linear slider 51, and has a structure that can move obliquely. The table skew portion 43 is pressed against the lower right stopper position by its own weight and the spring tension coil spring 91.
The table lower part 30 is connected to the gantry 10 via a laterally moving linearly moving slider 71 and has a structure capable of moving laterally. A driving timing belt 82 is connected to the table lower portion 30.

<<< General positioning method of moving table >>>
Next, the operation (moving table positioning method) of the moving table positioning device 100 will be described.

The general operation of the positioning control of the control unit 11 is as follows.
1. At the pre-movement position P1, the entire table is positioned and stopped by the motor.
2. By driving the motor, the entire table moves to the right, and the entire table is positioned and stopped at the lateral movement completion position P2 immediately before the roller 44 hits the vertical surface 13 (roller guide).
3. Further, when the table lower portion 30 is moved to the right from the lateral movement completion position P2 by driving the motor, the lateral movement of the roller 44 is restrained by the vertical surface 13 (roller guide), so that the table skew portion 43 moves upward. Moving.
4). When the motor drive is stopped, the table skew section 43 stops positioning at the specified height.
5. The return stroke operates in the reverse order.

<<< Detailed positioning method of moving table >>>
Detailed operation of positioning of the control unit 11 is as follows.

FIG. 1 described above is a diagram in which the movement table 20 is at the pre-movement position P1.
The drive mechanism 80 is driven by a command from the control unit 11. That is, the drive servo motor 81 rotates. As the driving servo motor 81 rotates, the driving force of the driving servo motor 81 is transmitted to the driving timing belt 82, and the driving timing belt 82 moves. The table lower portion 30 is attached to a part of the driving timing belt 82 via the connecting portion 31. When the driving timing belt 82 moves to the left and right, the table lower portion 30 also moves to the left and right.

  FIG. 1 shows that the movement table 20 moves from the pre-movement position P1 to the horizontal movement completion position P2. There is a space between the moving table 20 and the longitudinal guide 12 at the pre-movement position P1. That is, the roller 44 and the vertical surface 13 are separated. The lateral movement completion position P2 is a position immediately before the roller 44 and the vertical surface 13 are in contact (or a position where the roller 44 and the vertical surface 13 are in contact with each other without an impact).

  In the movement from the pre-movement position P <b> 1 to the lateral movement completion position P <b> 2, the position of the table upper part 40 is at the position positioned by the tilt positioning unit 60, and the position of the table upper part 40 with respect to the table lower part 30 does not change. That is, the table upper part 40 is at the lowest position, and the distance in the tilt direction between the table lower part 30 and the table upper part 40 is the smallest.

FIG. 4 is a diagram in which the movement table 20 is in the horizontal movement completion position P2.
The control unit 11 instructs the movement from the pre-movement position P1 to the lateral movement completion position P2, and instructs the stop at the lateral movement completion position P2.
The moving table 20 stops moving at a position immediately before the roller 44 and the vertical surface 13 come into contact with each other.
Thereafter, the control unit 11 instructs the movement by the lateral movement distance L in the X direction from the lateral movement completion position P2 to the vertical movement completion position P3.

When the table lower part 30 moves from the lateral movement completion position P2 to the longitudinal movement completion position P3 while the roller 44 and the vertical surface 13 are in contact with each other, the table upper part 40 rises upward in the inclined direction without lateral movement.
At this time, as the roller 44 rotates with respect to the vertical surface 13, the rising friction of the table upper portion 40 can be reduced.

  The positioning of the moving table 20 in the X direction is determined by the vertical surface 13 of the longitudinal guide 12. Therefore, the longitudinal guide 12 and the roller 44 are both made of steel that does not deform, so that no distortion or misalignment occurs. The vertical surface 13 is a true plane, and the roller 44 is a true cylinder.

FIG. 5 shows the movement table 20 at the vertical movement completion position P3.
The control unit 11 instructs the movement from the horizontal movement completion position P2 to the vertical movement completion position P3 and also instructs the stop at the vertical movement completion position P3.

By the movement of the lateral movement distance L from the lateral movement completion position P2 to the longitudinal movement completion position P3, the upper stopper 61 and the lower stopper 62 are separated, the tension coil spring 91 is extended, and the action of the inclined slide mechanism 50 causes the table upper part 40 to move to the table. It slides diagonally upward in the tilt direction with respect to the lower portion 30. As a result, the table upper portion 40 rises in the Z direction by the vertical movement distance H from the vertical movement height Q1 to the vertical movement completion height Q2. There is no position change in the X direction of the table top 40 while the table top 40 is raised.
When the table upper portion 40 is raised in the Z direction by the vertical movement distance H, the final positioning of the moving table 20 is completed.

When positioning of the moving table 20 is completed and the predetermined operation is completed, the control unit 11 reversely rotates the drive servo motor 81 to move laterally from the vertical movement completion position P3 to the horizontal movement completion position P2 and to move the table upper portion 40. Is lowered from the vertical movement completion height Q2 to the height Q1 before the vertical movement.
Further, the control unit 11 reversely rotates the drive servo motor 81 to move laterally from the lateral movement completion position P2 to the pre-movement position P1, thereby completing the lateral movement of the table upper portion 40.

<<< Explanation of inclined surface and its function >>>
FIG. 6 is an explanatory diagram of the tilt direction.
FIG. 6A shows a case where the horizontal movement distance L: the vertical movement distance H is 2: 1 and the inclination angle α is 26.57 degrees.
FIG. 6B shows a case where the lateral movement distance L: vertical movement distance H is 4: 1 and the inclination angle α is 14.04 degrees.

“Horizontal movement distance L> longitudinal movement distance H” is good. For example, the horizontal movement distance L is preferably 2 to 4 times the vertical movement distance H. Specifically, the horizontal movement distance L is the vertical movement distance. It is desirable to set H to 3: 1.
“Horizontal travel distance L> Vertical travel distance H”
That means that
“Inclination angle α <45 degrees with respect to horizontal direction”
Is good.

  Thus, by setting the lateral movement distance L> the vertical movement distance H, the positioning accuracy in the vertical direction can be improved from the positioning accuracy in the horizontal direction using the same drive mechanism 80. For example, if the lateral movement distance L: longitudinal movement distance H is set to 3: 1, the positioning accuracy in the vertical direction is three times better than the positioning accuracy in the horizontal direction.

  As described above, the moving table positioning device 100 has a mechanism that performs the horizontal movement of the table at a determined position and performs the operation of performing the vertical movement at the determined height at one end with one drive system. ing. There is no drive system dedicated to horizontal movement, and there is no drive system dedicated to vertical movement. The moving table positioning apparatus 100 has only one drive system that is used for both horizontal movement and vertical movement.

  Thus, since the table upper part 40 slides on the inclined surface, the movable table positioning device 100 can be driven in the horizontal direction and the vertical direction if there is only one drive system in the horizontal direction. That is, the movement of the inclined surface converts the movement in the horizontal direction into the movement in the vertical direction.

<<< Characteristic Configuration of Moving Table Positioning Device 100 >>>
Hereinafter, a characteristic configuration of the moving table positioning device 100 will be described in detail.

There are two inclined slide mechanisms 50 at the front and rear (X direction) ends of the upper portion of the table lower portion 30 and two at the left and right (Y direction) ends.
That is, the inclined slide mechanism 50 exists at the four corners on the upper surface of the table lower portion 30 and the four corners on the lower surface of the table upper portion 40. The tilt angle and the mounting height of the four tilt slide mechanisms 50 in total are the same.

The upper front part of the table lower part 30 has a saw-tooth shape. In FIG. 1, there are two convex or mountain-shaped saw blades, a right front saw blade portion 35 and a left rear saw blade portion 36.
The inclination angles α in front of the two saw blades are equal, the farther from the longitudinal guide 12 is the upper side of the slope, and the closer to the longitudinal guide 12 is the lower side of the slope. That is, in FIG. 1, it has an inclined surface (sliding surface) that falls to the right.

Behind the front saw blade portion 35 is a lower positioning surface 37 that is orthogonal (or substantially orthogonal) to the inclination angle α.
The lower portion of the table skew portion 43 of the table upper portion 40 has a concave shape that is recessed upward and opened downward. FIG. 1 shows a concave shape formed by two legs, a right front leg 45 and a left rear leg 46.

The top of the forward saw blade portion 35 at the top of the table lower portion 30 enters the concave recess opened downward.
Even when the table skew 43 is skewed, the convex forward saw blade 35 moves between the concave recess and the convex forward saw blade 35 so that they do not collide with each other. There is a space where you can.

In front of the rear leg 46, there is an upper positioning surface 47 that is orthogonal (or substantially orthogonal) to the inclination angle α. The lower positioning surface 37 and the upper positioning surface 47 are parallel surfaces.
Although not shown in FIG. 2, there are two inclined positioning portions 60 in the Y direction, the lower stopper 62 is fixed to the upper and lower center of the lower positioning surface 37, and the upper stopper 61 is the upper and lower center of the upper positioning surface 47. It is fixed to. The height of the tilt positioning part 60 is at the center height of the tilt height. It is desirable to arrange the tilt positioning unit 60 at the center between the two tilt slide mechanisms 50.

  In addition, the case where the inclination positioning part 60 is one may be sufficient. When there is one tilt positioning unit 60, the tilt positioning unit 60 is disposed between the four tilt slide mechanisms 50. If possible, it is desirable to arrange at the center of the four inclined slide mechanisms 50 or at the center portion (substantially the center).

  There are two tension coil springs 91 of the pressurizing unit 90 in the Y direction, and are hooked on the center of the upper part of the front saw blade part 35 and the center of the base of the rear leg 46. The inclination angle of the tension coil spring 91 is preferably the same as the inclination angle α of the inclination rail 52 of the inclination slide mechanism 50.

  The tensile strength of the two tension coil springs 91 is the same. The tensile strength of the two tension coil springs 91 must be weaker than the force applied obliquely upward in the tilt direction with respect to the table upper portion 40 when the table upper portion 40 is raised by the drive mechanism 80.

  There are two laterally moving linearly moving sliders 71 of the lateral sliding mechanism 70 at the front and rear (X direction) ends of the lower portion of the table lower portion 30 and two at the left and right (Y direction) ends. That is, the laterally moving linearly moving slider 71 exists at the four corners of the lower surface of the table lower portion 30. The four linearly moving sliders 71 for lateral movement are present in a portion (or substantially directly below) of the four inclined slide mechanisms 50 in the Y direction. The inclination angles of the four linearly moving sliders 71 for horizontal movement are 0 degrees (horizontal), and the mounting height is the same.

  The horizontal rails 72 of the horizontal slide mechanism 70 are two parallel linear tracks fixed to the upper surface of the gantry 10, the inclination angle is 0 degree (horizontal), and the mounting height is the same.

  The roller 44 protrudes forward in the X direction from the base of the front leg 45 of the table upper portion 40. The rotation axis of the roller 44 is parallel to the Y direction, and the roller 44 is attached to be rotatable in the Z direction. The two rollers 44 rotate on the same rotating shaft and have the same mounting height.

  When the table upper portion 40 is positioned by the tilt positioning portion 60, the tilting linear slider 51 is on the lower side of the tilt rail 52, and the height of the roller 44 is at the height of the lower portion of the vertical surface 13.

  The lower front surface 38 of the table lower portion 30 in the X direction is more than the lateral movement distance L behind the front end surface of the roller 44 in the X direction.

  When the table lower part 30 of the moving table 20 moves from the horizontal movement completion position P2 to the vertical movement completion position P3, the roller 44 rotates from the lower part of the vertical surface 13 toward the upper part. Since the lower front surface 38 is more than the lateral movement distance L behind the front end surface of the roller 44 in the X direction, the table lower portion 30 does not collide with the vertical guide 12 even if moved by the lateral movement distance L.

  Since the roller 44 cannot move in the X direction from the vertical surface 13 in the table upper portion 40, the inclined slide mechanism 50 operates, and only the lateral movement distance L from the lateral movement completion position P2 to the vertical movement completion position P3 of the table lower portion 30 operates. As it moves, it rises in the Z direction. At this time, since the roller 44 is restrained by the vertical surface 13, the position of the jig plate 41 in the X direction does not change. That is, the position of the jig plate 41 in the X direction is determined by the vertical surface 13 of the longitudinal guide 12 and the roller 44.

  When the table lower portion 30 of the moving table 20 moves from the horizontal movement completion position P2 to the vertical movement completion position P3 by the horizontal movement distance L, the jig plate 41 is moved by the vertical movement distance H proportional to the horizontal movement distance L based on the inclination angle α. To rise. Thus, the height of the jig plate 41 in the Z direction is determined by the inclination angle α and the lateral movement distance L.

  In order to position the jig plate 41 at the lateral movement completion position P2 in the X direction, the controller 11 rotates the drive servo motor 81 so that the table lower part 30 moves from the pre-movement position P1 to the lateral movement completion position P2. . Further, the controller 11 drives the servomotor so that the table lower part 30 moves from the lateral movement completion position P2 by the lateral movement distance L in order to position the jig plate 41 at the desired height longitudinal movement completion height Q2. 81 is rotated.

  Since the roller 44 is not fixed to the vertical guide 12 and can be separated from the vertical guide 12, there is no restriction on the movement of the moving table 20 in the rearward direction in the X direction. Therefore, the horizontal rail 72 and the driving timing belt 82 can be arbitrarily extended rearward in the X direction.

  Temporarily, the table skew part 43 and the longitudinal guide 12 are not in a contact structure (pushing structure) like the vertical surface 13 and the roller 44, but in a vertical sliding structure (fitting structure) between the rail and the linear slider. Then, the table upper part 40 can move only in the vertical direction with respect to the vertical guide 12. That is, the table lower part 30 can move only within the range of the horizontal movement completion position P2 and the vertical movement completion position P3.

  When the table skew section 43 and the longitudinal guide 12 have a contact structure (pressing structure) such as the vertical surface 13 and the roller 44, the table upper portion 40 can be separated from the longitudinal guide 12, and therefore the moving table 20 Can be freely moved backward in the X direction.

  Further, since the movable table 20 can freely move rearward in the X direction, the table upper portion 40 slides down the table lower portion 30 without the tilt positioning portion 60. The tilt positioning unit 60 is a configuration that is necessary because the vertical surface 13 and the roller 44 employ a contact structure (pushing structure).

<<< Summary of Configuration of Moving Table Positioning Device 100 >>>
As described above, in this embodiment, the moving table positioning device 100 that positions the moving table 20 by moving the moving table 20 in the horizontal direction (X direction) and the vertical direction (Z direction) with respect to the gantry 10 is described. did.
The moving table 20 has a table lower part 30 and a table upper part 40.

  The tilt slide mechanism 50 is provided between the table lower portion 30 and the table upper portion 40, and moves the table upper portion 40 with respect to the table lower portion 30 in the tilt direction of the tilt angle α with respect to the lateral direction (X direction). Installed as possible.

  The tilt positioning unit 60 is provided between the table lower portion 30 and the table upper portion 40, and moves the table upper portion 40 moving toward the lower side in the predetermined tilt direction with respect to the table lower portion 30 (tilt slide mechanism). 50).

  The horizontal slide mechanism 70 is provided between the lower surface of the table lower portion 30 and the upper surface of the gantry 10, and attaches the table lower portion 30 to the upper surface of the gantry 10 so as to be movable in the horizontal direction (X direction).

  The vertical guide 12 is provided at a position where it abuts on the table upper part 40 and guides the table upper part 40 to move in the vertical direction (vertical direction).

  The drive mechanism 80 is provided with the connecting portion 31 of the table lower portion 30 of the moving table 20 so that the lower side in the predetermined inclination direction is on the side where the vertical guide 12 exists, and the lower side in the predetermined inclination direction is the vertical direction. The moving table 20 is slid horizontally so as to approach the guide 12.

  The control unit 11 controls the drive mechanism 80 to slide the table lower portion 30 laterally toward the vertical guide 12 from a position where the table upper portion 40 is not in contact with the vertical guide 12, and causes the vertical guide 12 to move to the table upper portion. By abutting and pressing 40, the table upper part 40 positioned at a predetermined position by the inclination positioning part 60 is moved upward in the predetermined inclination direction, and the table upper part 40 is moved in the vertical direction (Z direction). Move to.

  The pressurizing unit 90 is provided between the table lower portion 30 and the table upper portion 40 and pressurizes the table upper portion 40 against the table lower portion 30 with a predetermined pressure toward the lower side in the predetermined tilt direction.

The longitudinal guide 12 has a vertical surface 13,
The table upper part 40 has a roller 44 that contacts the vertical surface 13 of the longitudinal guide 12 and rotates as the table upper part 40 moves upward.

  The tilt positioning unit 60 determines the distance between the table lower portion 30 and the table upper portion 40 in the predetermined tilt direction. The tilt positioning unit 60 adjusts the distance between the table lower portion 30 and the table upper portion 40 in the predetermined tilt direction.

  The controller 11 slides the table lower portion 30 toward the vertical guide 12 from a position where the table upper portion 40 of the moving table 20 is separated from the vertical guide 12, and the table upper portion 40 of the moving table 20 contacts the vertical guide. Immediately before (or at the time of contact), the horizontal slide is temporarily stopped, and then the table lower portion 30 is again slid to press the table upper portion 40 against the vertical guide 12.

  According to the moving table positioning device 100 of this embodiment, since it is not necessary to provide a lateral positioning mechanism and a vertical positioning mechanism independently, the structure can be simplified and the number of parts can be reduced. Moreover, the assemblability is improved.

  Further, since the inclination angle α is 45 ° or less, it is possible to provide the vertical positioning accuracy that is higher than the horizontal positioning accuracy of the table lower portion 30.

  Further, since the moving table 20 and the vertical guide 12 can be separated, the horizontal moving distance of the table lower portion 30 (the distance between the pre-movement position P1 and the horizontal movement completion position P2) is not limited, and the horizontal direction Can be moved over long distances.

<<< Modification / Improvement >>>
The moving table positioning device 100 may be modified or improved as follows.
1. The drive may be other than the timing belt, and may be a ball screw or a linear motor.
2. It is also possible to arrange the linear slider and the rail not horizontally but horizontally or upside down. For example, in FIG. 1, the linear motion slider 51 for tilting is on the tilt rail 52, but the tilt rail 52 may be placed on the linear motion slider 51 for tilting by turning upside down. The lateral movement linearly moving slider 71 and the horizontal rail 72 may also be turned upside down.
Further, in FIG. 1, the tilting linear slider 51 is on the tilt rail 52, but it may be rotated 90 degrees to make the tilt rail 52 beside the tilting linear slider 51 (Y direction). The lateral movement linear motion slider 71 and the lateral rail 72 may also be rotated by 90 degrees.
3. The arrangement of the roller 44 and the vertical surface 13 (roller guide) can be reversed.

  That is, the table upper portion 40 may have the vertical surface 13 on the front leg 45 and the longitudinal guide 12 may have the roller 44. The roller 44 comes into contact with the vertical surface 13 on the front surface of the front leg 45 of the table upper portion 40 and rotates as the table upper portion 40 moves upward.

Embodiment 2. FIG.
7 to 10 are diagrams showing the moving table positioning apparatus 100 according to the second embodiment.
Hereinafter, differences from the first embodiment will be described.

The moving table positioning device 100 has one inclined slide mechanism 50 and one lateral slide mechanism 70.
Moreover, the roller 44 and the pressure part 90 are also one piece.
Moreover, the inclination positioning part 60 is also one piece.
Further, as shown in FIG. 9, the vertical guide 12 of the gantry 10 is also one.

Thus, when each part is comprised with one piece, each part is good to arrange | position to the center of the movement table positioning device 100 in a Y direction.
In FIG. 8, the connecting portion 31 is on the right side to bypass the lateral slide mechanism 70 in the center.

  The first embodiment and the second embodiment may be mixed so that one of the parts is plural as in the first embodiment, and the other parts may be one as in the second embodiment.

Embodiment 3 FIG.
FIG. 10 is a diagram showing a screen printing machine 200 using the moving table positioning device 100 described in the first embodiment.
FIG. 10 shows a case where the movement table 20 is at the vertical movement completion position P3 and the movement table 20 is at the vertical movement completion height Q2.

  The moving table positioning device 100 is a device for positioning the table in the X direction and Z direction orthogonal to each other. Since the moving table 20 can move a long distance in the horizontal direction, it is preferably used for the screen printing machine 200. It is.

  When the moving table positioning device 100 is used in the screen printing machine 200, the upper portion of the pre-movement position P1 is left blank. Using this space, a workpiece such as a substrate to be printed can be placed on the jig plate 41.

A printing unit 202 and a screen mask 201 are arranged above the horizontal movement completion position P2.
The screen mask 201 is disposed immediately above the vertical movement completion height Q2 of the jig plate 41. That is, the screen mask 201 is disposed at a position where printing can be performed with the jig plate 41 positioned at the vertical movement completion height Q2.
When the moving table 20 is positioned at the pre-movement position P1, the print space (work 210) such as a substrate is placed on the jig plate 41 using the space above the work space.

  When the jig plate 41 of the moving table 20 is positioned at the horizontal movement completion position P2 and the vertical movement completion height Q2, screen printing is performed by the squeegee 203 on the workpiece 210 via the screen mask 201. be able to.

Embodiment 4 FIG.
The moving table positioning device 100 can be used other than a screen printing machine because the moving table 20 can move in the horizontal direction over a long distance. For example, the moving table positioning device 100 can be used in a machine tool transport positioning device that fixes a tool, a jig, or a machine tool such as a robot arm to the jig plate 41 and transports and positions the tool.

  Further, the moving table positioning device 100 can be used for a baggage transport positioning device for transporting and positioning a load or an object on the jig plate 41.

  DESCRIPTION OF SYMBOLS 10 Mount, 11 Control part, 12 Vertical direction guide, 13 Vertical surface, 20 Moving table, 30 Table lower part, 31 Connection part, 35 Front saw blade part, 36 Back saw blade part, 37 Lower positioning surface, 38 Lower front surface, 40 Table upper part, 41 Jig plate, 42 Alignment part, 43 Table skew part, 44 Roller, 45 Front leg, 46 Rear leg, 47 Upper positioning surface, 50 Inclined slide mechanism, 51 Inclined linear slider, 52 Inclined rail, 53 Inclination linear motion slider, 54 Inclination rail, 60 Inclination positioning part, 61 Upper stopper, 62 Lower stopper, 70 Lateral slide mechanism, 71 Lateral movement linear motion slider, 72 Lateral rail, 80 Drive mechanism, 81 Servo motor for drive , 82 Timing belt for driving, 90 pressurizing part, 91 tension coil spring, 100 Table positioning device, 200 screen printing machine, 201 screen mask, 202 printing unit, 203 squeegee, 210 workpiece, L lateral movement distance, H longitudinal movement distance, P1 pre-movement position, P2 lateral movement completion position, P3 vertical movement completion position, Q1 Height before vertical movement, Q2 Vertical movement completion height.

Claims (9)

In the moving table positioning device for positioning the moving table by moving the moving table in the horizontal and vertical directions with respect to the gantry,
A moving table having a table lower portion and a table upper portion;
An inclined slide mechanism provided between the table lower portion and the table upper portion, and attached to the table lower portion so as to be movable in a predetermined inclination direction;
An inclination positioning part provided between the table lower part and the table upper part, for positioning the table upper part moving toward the lower side in the predetermined inclination direction at a predetermined position with respect to the table lower part;
A horizontal slide mechanism provided between the table lower part and the gantry and attached to the table so that the lower part of the table can be moved laterally;
A longitudinal guide provided at a position where it abuts the upper part of the table;
A drive mechanism for horizontally sliding the moving table by attaching the table lower portion of the moving table so that the lower side of the predetermined inclination direction is the vertical guide side;
Tilt positioning by controlling the drive mechanism and sliding the table lower part horizontally toward the vertical guide from the position where the table upper part does not contact the vertical guide, and pressing the table upper part against the vertical guide. A moving table positioning apparatus comprising: a control unit configured to move the table upper portion, which has been positioned at a predetermined position by the unit, to the upper side in the predetermined tilt direction and move the table upper portion in the vertical direction.   The moving table positioning device further includes a pressurizing unit that is provided between the table lower portion and the table upper portion and pressurizes the table upper portion with a predetermined pressure toward the lower side in the predetermined inclination direction with respect to the table lower portion. The moving table positioning device according to claim 1, wherein: The longitudinal guide has a vertical surface,
The moving table positioning device according to claim 1, wherein the table upper portion includes a roller that contacts the vertical surface of the longitudinal guide and rotates as the table upper portion moves upward. The table top has a vertical surface,
3. The moving table positioning device according to claim 1, wherein the vertical guide has a roller that comes into contact with a vertical surface of the upper portion of the table and rotates in accordance with the upward movement of the upper portion of the table.   The moving table positioning device according to claim 1, wherein the tilt positioning unit determines a distance between the table lower portion and the table upper portion in the predetermined tilt direction.   The control unit horizontally slides the table upper part from the position away from the vertical guide toward the vertical guide, and temporarily stops the horizontal slide immediately before the table upper part of the moving table contacts the vertical guide. 6. The moving table positioning device according to any one of claims 1 to 5, wherein after that, the table lower portion is again slid horizontally to press the upper portion of the table against the vertical guide. The table lower portion has an inclined surface with an inclination angle α (α <90 degrees), and a lower positioning surface orthogonal to the inclined surface,
The table upper portion has an inclined surface with an inclination angle α and an upper positioning surface orthogonal to the inclined surface,
The movement according to any one of claims 1 to 6, wherein the inclined positioning portion has a lower stopper fixed at the upper and lower center of the lower positioning surface and an upper stopper fixed at the upper and lower center of the upper positioning surface. Table positioning device. The lower portion of the table has a saw blade-shaped front saw blade portion and a rear saw blade portion having an inclined surface with an inclination angle α (α <90 degrees),
The lower positioning surface is behind the front saw blade,
The upper part of the table has a front leg and a rear leg,
The upper positioning surface is in front of the rear leg,
The lower stopper is between the front and rear saw blades,
8. The moving table positioning device according to claim 7, wherein the upper stopper is located between the front leg and the rear leg.   A screen printing machine comprising the moving table positioning device according to claim 1.

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