JP5041475B2 - Plate work transfer device - Google Patents

Description

  The present invention relates to an apparatus for conveying a plate material workpiece that is transferred to a processing machine after positioning the origin of the plate material workpiece in advance as an external setup for a processing machine that targets the plate material, such as a plate material bending machine.

  A front table is provided on the front surface of the plate material processing machine, and a set table is provided side by side on the left or right side of the front table, and the origin position is adjusted on the set table before the plate material workpiece is transferred to the front table. So-called external setup methods are known.

For example, the applicant of the present application has previously proposed a technique according to Japanese Patent No. 3736800.
However, the technique according to Japanese Patent No. 3736800 has a further point to be improved.
For example, the structure further includes left and right abutment gauge units for positioning the dimension in the X-axis direction of the plate workpiece on the carriage to be transported and positioned, so that the structure is complicated and the manufacturing cost increases.
In addition, because the carriage unit was placed between the processing machine body and the front table, the board work transferred to the front table could not be transferred to the processing machine body unless the carriage was retracted to the set table side and returned. .
Furthermore, the carriage travel range must cross the front table across the front center of the processing machine, but the carriage must avoid the interference with the manipulator that travels in the Y-axis direction and loads the plate work into the processing machine body. There was a slight problem in the positioning accuracy of the plate work because the opposite side of the set table from the center of the front table had a cantilever structure.
When the carriage travel is relatively wide and the corner cutout width is large, a flapper table is required to prevent side sag of the material, which increases the man-hours by the amount of operation time of the flapper table. .

Japanese Patent No. 3736800

  In order to solve the above-described problems, an object of the present invention is to provide a plate work workpiece conveying apparatus that has a simple structure but has a high accuracy in positioning of the outside setup origin of a plate work and high productivity.

The present invention is a plate work conveying apparatus for loading and unloading a plate work to and from a processing machine main body, comprising a front table on the front surface of the processing machine main body and a set table on the left or right side of the front table. The X-axis rail for transferring to the front table after positioning at the origin, a pair of left and right clamp gauge units RL that run in the left-right direction along the X-axis rail, and a plate material from the front table to the processing machine body It has a manipulator that positions the workpiece, and the X-axis rail is provided across the front table from the set table. The pair of left and right clamp gauge units R and L are independent of each other and can be moved up and down. In addition, the X-axis abutting gauge and the Y-axis abutting gauge and the clamping hand for the plate work The can with the clamp gauge units R and L can be controlled synchronously with a, is set table has a pusher for pushing towards the plate workpiece into the Y-axis direction abutment gauge, manipulator, a direction perpendicular to the X-axis rail And the clamp part of the manipulator is positioned closer to the processing machine body side than the X-axis rail, and the manipulator travels in the Y-axis direction and the clamp gauge units R and L travel in the X-axis direction. It is characterized by not interfering .

Here, the X-axis rail is disposed substantially parallel to the front surface of the processing machine body, and is provided so as to cross the front table from the set table.
The processing machine refers to various processing machines for a plate material, and a plate material bending machine is a typical example.

Further, the pair of clamp gauge units R and L can be moved up and down, and has an abutment gauge and a clamp means.
By being able to move up and down, the plate work can be lowered and retracted when it passes over the table.
Thereby, the traveling axis of the X-axis rail can be set narrower than when retracting in the Y-axis direction.
In the present specification, L on the left side and R on the right side of the front surface of the processing machine main body are displayed.

The plate workpiece transfer device according to the present invention has a pair of clamp gauge units whose positions in the X-axis direction are independently controlled on the X-axis rail, so that a conventional carriage is not necessary. Cost is reduced.
In addition, since R and L of the clamp gauge unit are controlled independently and synchronous control is possible, the limitation of the workpiece abutting position in the X-axis direction is reduced, and a long work is started from a plate material workpiece that is short in the X-axis direction. It can handle a wide range of products, and can handle products with large corner cutouts.

Since the clamp part of the manipulator that runs in the Y-axis direction, which is perpendicular to the X-axis direction, is located closer to the machine body side than the X-axis rail, the X-axis rail extends from the center of the machine front to the opposite side of the set table. Because the clamp gauge unit support is not a cantilever structure, the positioning accuracy of the plate work is improved, and the layout of the loading and unloading of the plate work is also returned to the loading side even in the progressive arrangement for loading and unloading in one direction. A return type arrangement is also possible.
In addition, since the travel of the clamp gauge unit and the travel of the manipulator do not interfere with each other, the origin work positioning can be performed as an external setup by the set table 20 during the transfer and positioning of the plate work of the front table to the processing machine body. Is also expensive.
That is, the next plate material work can be transferred to the front table even when the manipulator is positioning the plate material work on the processing machine body.

FIG. 1 shows an example of the layout of the transport apparatus according to the present invention.
FIG. 1B is a plan view, and FIG. 1A is a side view seen from the manipulator 40 side.
The example shown in FIG. 1 shows an example in which a front table 30 is arranged on the front surface of the processing machine body 10 and a set table for aligning the origin is arranged on the right side of the front table toward the processing machine body. You may arrange | position on the left side on the opposite side.

The front table 30 is provided with a manipulator 40 for transferring and positioning a plate work on the processing machine body.
Further, a carry-out conveyor 70 is provided between the front table 30 and the processing machine main body, and as shown in FIG. 1, even in the forward feed direction along the plate material loading direction (left side toward the processing machine main body in FIG. 1). Can be carried out in the return direction according to the layout setting.
An X-axis rail 50 is disposed on the set table 20 on the opposite side of the side on the processing machine main body side.
The X-axis rail 50 is substantially parallel to the front surface of the processing machine body 10 and is orthogonal to a traveling rail (not shown) in which the manipulator 40 travels in the Y-axis direction. However, as shown in FIG. The clamp portion 41 is located closer to the processing machine main body 10 than the X-axis rail 50.
As shown in FIGS. 1 and 2 (excluding the auxiliary table 24), the clamp gauge units L and 60L and the clamp gauge units R and 60R run independently in the X-axis direction on the X-axis rail. And have.
The clamp gauge units L and R have the same structure, and FIG. 3 shows a side view and FIG. 4 shows a plan view.
The clamp gauge units R and L are opposed to each other in the direction of the abutting gauge shown in FIG. 4, and for example, the corner notches 2 and 3 of the plate work 1 are abutted from both sides in the X-axis direction as shown in FIG. It is arranged in.

As shown in FIG. 3, the clamp gauge units R and L have clamps 61 (61L and 61R) that can be moved up and down by a lift cylinder 65 via a Z-axis LM guide rail 68 and a Z-axis LM guide 67 on a unit base 66. It is provided.
The clamp 61 includes a clamp receiving plate 62 and a clamper 63, and is a gauge that abuts against a corner of a notch portion of a plate work inserted between the clamp receiving plate 62 and the clamper 63 as shown in FIG. It has an X abutment gauge 69X that abuts in the axial direction and a Y abutment gauge 69Y that abuts in the Y axis direction.
The clamper 63 moves up and down by a clamp cylinder 64.

    The side of the unit base 66 opposite to the clamp 61 can travel along the X-axis rail 50 via the X-axis LM guide 53 and the X-axis LM guide rail 52, and the position control in the X-axis direction is controlled by the rack 55. The rotation of the pinion 54 is controlled by a drive unit 56 such as a servo motor.

As shown in FIG. 1, the set table 20 has a plate material work carrying conveyor such as a roller conveyor 23, and an auxiliary table 24 is provided above the X-axis rail.
A stopper 22 that moves up and down is provided between the roller conveyor 23 and the front table, and a pusher 21 is provided in a direction perpendicular to the rollers of the roller conveyor 23, and the pusher 21 is movable in the Y-axis direction.

Next, the flow of loading and unloading the plate work and the origin positioning method will be described with reference to FIGS.
FIG. 6A shows a state in which the plate work 1 is carried into the roller conveyor 23 of the set table 20.
The example of this board | plate material workpiece | work 1 shows the example which notched four corners.
FIG. 6B shows a state in which the plate work 1 is moving on the roller conveyor 23. In this state, the clamp 61R of the clamp gauge units R and 60R is prevented from interfering with the plate work 1 in FIG. As shown, the clamp 61R is retracted downward from the line for carrying in the plate work by retreating the rod 65a of the elevating cylinder 65.
FIG. 7A shows a state in which the tip of the plate workpiece 1 has abutted against the stopper 22.
In this state, the clamp 61R rises as shown in FIG. 5B, the pusher 21 moves forward in the Y-axis direction as shown in FIG. 7B, and pushes the plate work 1 toward the X-axis rail.
By this operation, the notch reference end of the plate workpiece is brought into contact with the Y abutment gauge 69Y, and the origin positioning in the Y-axis direction is completed.
On the other hand, in the X-axis direction, as shown in FIGS. 8A and 8B, the X abutment gauge 69X of the clamp gauge unit RL is abutted on the notch corner portion for positioning.
In this case, the X-axis direction and the Y-axis direction may be positioned simultaneously, or either the Y-axis direction or the X-axis direction may be first.
In this way, when the origin is aligned at the reference end of the notch portion of the plate workpiece, the role of the stopper 22 is a temporary alignment of the plate workpiece in the X-axis direction.
When the origin positioning of the plate work in the X-axis direction and the Y-axis direction is completed by the set table 20, the clamper 63 is raised as shown in FIG. 5C to clamp the plate work, and as shown in FIG. 9A. Then, the stopper 22 descends and retreats, and is transferred to the front table. In this state, the clamp part 41 of the manipulator 40 clamps the plate work 1 so that the plate work 1 positioned at the origin is pulled to the manipulator 40. Positioned on the processing machine main body 10 as shown in FIG.
While the manipulator 40 is transferring the plate work 1, the next plate work 1 a is positioned on the set table 20.
The plate work that has been bent and lowered is carried out by a carry-out conveyor 70 as shown in FIG.
Thus, the carry-out direction may be a progressive direction or a return direction.

FIG. 10 shows an example in which the plate material workpiece 1c having no corner cutout is positioned at the origin.
In this case, the origin positioning in the X-axis direction is performed by the stopper 22, and the origin positioning in the Y-axis direction is performed by the pusher 21 and the clamp gauge unit R / L.

The example of arrangement | positioning of the conveying apparatus which concerns on this invention is shown. The positional relationship between the clamp gauge units L and R is shown. The side view principal part figure of a clamp gauge unit is shown. The principal part figure of planar view of a clamp gauge unit is shown. It is explanatory drawing of raising / lowering operation | movement of a clamp gauge unit. The state which carries in a board | plate material workpiece | work to a set table is shown. The positioning state of the board | plate material workpiece | work of the Y-axis direction is shown. The positioning state of the board | plate material workpiece | work of the X-axis direction is shown. The plate workpiece is transferred to the front table and transferred to the machine body. The origin positioning method for plate work without corner notches is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Processing machine main body 20 Set table 21 Pusher 22 Stopper 23 Roller conveyor 24 Auxiliary table 30 Front table 40 Manipulator 41 Clamp part 50 X axis rail 51 X axis frame 52 X axis LM guide rail 53 X axis LM guide 54 Pinion 55 Rack 56 Drive 60R Clamp gauge unit R
60L Clamp gauge unit L
61 Clamp 64 Clamp cylinder 65 Lift cylinder 66 Unit base 67 Z-axis LM guide 68 Z-axis LM guide rail 69X X abutment gauge 69Y Y abutment gauge 70 Discharge conveyor

Claims (1)

A plate work transport device that loads and unloads a plate work to and from the processing machine body,
A front table is provided on the front surface of the processing machine body and a set table is provided on the left or right side of the front table.
From the front table, a pair of left and right clamp gauge units RL that run in the left-right direction along the X-axis rail for transferring the plate workpiece to the front table after positioning the origin on the set table A manipulator for positioning a plate work on the processing machine body,
The X-axis rail is provided across the front table from the set table,
The pair of left and right clamp gauge units R and L are independent of each other and can be moved up and down , and have an X-axis abutment gauge, a Y-axis abutment gauge, and a plate work clamping means. Units R and L can be controlled synchronously,
The set table has a pusher that pushes the plate work toward the Y-axis abutment gauge,
The manipulator is controlled to travel in the Y-axis direction orthogonal to the X-axis rail, and the clamp part of the manipulator is positioned closer to the machine body side than the X-axis rail. The manipulator travels in the Y-axis direction and the clamp gauge unit. An apparatus for conveying a plate material work, wherein traveling in the X-axis direction of R and L does not interfere .

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