JP2000079526A - Workpiece work system and method of use thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate generation of indentation in a plate material and generation of damage in a metal mold, by preventing interposition of punching refuse with the plate material by the upper/lower metal molds in a bending work machine. SOLUTION: A system control device 63 is provided with a memory part 65 storing a table of a work schedule and a decision part 67 for deciding whether reversing is necessary or not of a plate material W based on the stored table of the work schedule from a schedule number. The system control device is formed by providing a reversing control part 73 for controlling a workpiece reversing machine 7 for reversing the plate material W in the case of deciding its reversing necessary and for rotating the plate material W by a prescribed angle of 60 deg. or more to reset to the former condition in the case of deciding the reversing of the plate material W unnecessary.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work processing system for performing punching, inversion, and bending on a sheet material, and a method of using the work processing system.

[0002]

2. Description of the Related Art A conventional work processing system will be briefly described.

[0003] A punching machine for punching a plate and a bending machine for bending a plate are provided side by side. The burr generated on the back of the work due to the punching is hidden inside during the bending. Between the punching machine and the bending machine, there is provided a work reversing machine for reversing (substantially rotating by 180 °) the plate material. Further, a system control device for controlling the punching machine, the bending machine, and the work reversing machine is provided.

[0004] Therefore, a punching process is performed on a plate material by a punching machine, and the plate material is sent from the punching machine to a work reversing machine. When the necessity of reversing the plate material is necessary, the plate material is reversed (rotated by approximately 180 °) by the work reversing machine, and the plate material is sent from the work reversing machine to the bending machine. When the necessity of the reversal of the plate is not determined, the plate is sent from the work reversing machine to the bending machine without rotating the plate by the work reversing machine. Further, a bending process is performed on the plate material by a bending machine.

[0005]

By the way, the punching waste generated by the punching process may remain on the upper surface of the plate material.
When the plate material is sent from the work reversing machine to the bending machine, the bending process may be performed in a state where the punch residue remains on the upper surface of the plate material. For this reason, there is a problem in that the punched waste is pinched by the upper and lower dies in the bending machine together with the plate material, thereby causing indentations in the plate material and damaging the die in the bending machine.

In view of the above, the present invention is intended to ensure that even if punched scraps remain on the upper surface of the plate, the punched scraps fall from the plate before sending the plate to the bending machine. An object of the present invention is to provide a work processing system capable of performing the method and a method of using the work processing system.

[0007]

According to the first aspect of the present invention, there is provided a punching machine for performing punching on a plate, and a bending machine for performing bending on a plate. A work reversing machine that rotates the plate material is provided between the punching machine and the bending machine, and the punching machine, the bending machine,
A system control device for controlling the work reversing machine is provided. The system control device includes a storage unit for storing a table of the processing schedule, and necessity of reversing the plate material based on the table of the processing schedule stored from the schedule number. A determination unit for determining whether or not the reversal of the plate is determined to be necessary, and reversing the plate when the necessity of the reversal of the plate is determined to be unnecessary if the necessity of the reversal of the plate is determined to be unnecessary. A reversing control unit for controlling the work reversing machine so as to rotate and return to the original state is provided.

According to the first aspect of the present invention,
Punching is performed on the plate by the punching machine, and the plate is sent from the punching machine to the work reversing machine. Next, the judging unit judges whether or not the plate material needs to be reversed based on the table of the processing schedule from the schedule number. When it is determined that the necessity of reversing the plate is determined to be necessary, the reversing control unit controls the work reversing machine to reverse the plate, or when it is determined that the necessity of reversing the plate is determined to be not necessary. The work reversing machine is controlled by the reversal control unit, and the plate is rotated by a predetermined angle of 60 ° or more to return to the original state. Further, the plate material is sent from the work reversing machine to the bending machine, and the bending process is performed on the plate material by the bending machine.

According to the second aspect of the present invention, the work reversing machine includes a pair of upper and lower roller tables including a plurality of rotatable feed rollers provided at appropriate intervals in the left-right direction. It is characterized by.

According to the second aspect of the present invention, when it is determined that it is not necessary to reverse the plate, the work reversing machine is controlled to rotate the plate by a predetermined angle of 60 ° or more, and a pair of upper and lower rollers is provided. By rotating the feed roller on the lower side of the table, the surface of the scraps with grease or other oil or fat is hit by the feed rollers and the scraps are easily dropped.

In the invention according to claim 3, (i) performing a punching process on a plate material by the punching machine, and sending the plate material from the punching machine to the work reversing machine; ii) After the step (i) is completed, the determining unit determines whether or not the plate material needs to be reversed based on the table of the processing schedule from the schedule number by the determination unit. Controls the work reversing machine by the reversing control to reverse the plate material, or when it is determined that the necessity of reversing the plate material is not necessary, the reversing control unit controls the work reversing machine to rotate the plate material by 60 °.
A step of returning to the original state by rotating by the above-described predetermined angle, and (iii) after the step (ii) is completed, sending the plate material from the work reversing machine to the bending machine, and bending the sheet material by the bending machine. And performing a bending process.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a work processing system 1 according to an embodiment of the present invention performs punching, inversion, bending and the like on a plate material W. This will be described in detail.

A punching machine 3 for punching the plate material W and a bending machine 5 for bending the plate material W are provided side by side (left and right in FIG. 1). A work reversing machine 7 for rotating the plate material W is provided between the bending machines 5. On the left side of the punching machine 3, there is provided a work loading / accumulating device 9 for accumulating the plate material W before processing and carrying the plate material W into the punching machine 3, and on the right side of the bending machine 5, the processed plate material. A work unloading and stacking device 11 for unloading W from the bending machine 5 and stacking the processed plate material W is provided.

The punching machine 3 has a well-known configuration, and moves the plate W in the front-rear direction (downward and upward in FIG. 1) and the left-right direction with respect to the work table 13 for supporting the plate W and the processing portion 15. And a positioning device 17 for positioning. Here, the processing unit 15 includes an upper turret for holding a plurality of punches and a lower turret for holding a plurality of dies, which are vertically opposed (front and back in FIG. 1).

The bending machine 5 includes a work table 19 for supporting the plate material W, and a positioning device 23 for positioning the plate material W in the front-rear direction with respect to the processing portion 21. Here, the processing unit 21 includes an upper die and a lower die for bending, which are vertically opposed to each other.

The work carrying-in / stacking device 9 will be briefly described as follows. That is, on the left side of the punching machine 3, a work stacking table 25 for stacking and supporting a plurality of plate materials W before processing is provided, and a guide rail 27 extending in the left-right direction is provided above the work stacking table 25. is there. A carry-in slider 29 is provided on the guide rail 27 so as to be movable in the left-right direction, and a plurality of vacuum pads 31 for adsorbing the upper surface of the plate material W are provided on the carry-in slider 29.
Is provided.

The work carrying-out / stacking device 11 will be briefly described as follows. That is, on the right side of the bending machine 5, there is provided a work accumulation table 33 for accumulating and supporting a plurality of processed plate materials W.
Above 3, a guide rail 35 extending in the left-right direction is provided. An unloading slider 37 is provided on the guide rail 35 so as to be movable in the left-right direction. The unloading slider 37 is provided with a plurality of clampers 39 for clamping an end of the processed plate material W.

The work reversing machine 7 will be briefly described as follows.

Referring to FIG. 2 to FIG.
Is provided with a base 41, and the base 41 has left and right
A pair of drums 43 are provided rotatably via a plurality of grooved guide rollers 45. The pair of drums 43 is separated to the left and right in FIG. 3 and to the front and back in FIG. The pair of drums 43 is provided with a pair of roller tables 47 facing each other.
Are small enough to pass through, and the pair of drums 43 are integrated by the pair of roller tables 47.
In each roller table 47, a plurality of feed rollers 49 are provided at appropriate intervals in the left-right direction, and the plurality of feed rollers 49 can be rotated by the operation of the feed motor 51 and the friction belt 53. In order to rotate the pair of drums 43 integrally with the pair of roller tables 47, a rotation motor 57 for rotating a pinion 55 is provided at an appropriate position on the base 41. At a rack 59 provided at the same position. A stopper 61 is provided between the pair of roller tables 47 so that the end surface of the plate material W can abut when the pair of roller tables 47 is rotated.

Referring to FIG. 1, the work processing system 1 includes a system control unit 63, and the system control unit 63 includes a storage unit 65 and a determination unit 67. Here, the storage unit 65 stores a processing schedule table as shown in FIG.
Is to determine the necessity of reversal of the plate material W or the necessity of bending processing based on a processing schedule table stored from the processing schedule number.

The system control unit 63 includes a punching control unit 69 for controlling the punching machine 3, a bending control unit 71 for controlling the bending machine 3, an inversion control unit 73 for controlling the work reversing machine 5, and a work loading / accumulating apparatus. Loading control unit 75 for controlling the work 9 and the work unloading and stacking device 1
1 is connected to a carry-out control unit 77 for controlling the control unit 1. here,
The inversion control unit 73 inverts the plate material W when the determination unit 67 determines that the necessity of the inversion of the plate material W is necessary (almost 180
°) When the sheet material W is rotated and it is determined that the necessity of the reversal of the sheet material W is not necessary, the sheet material W is rotated by a predetermined angle in one direction and is again rotated by a predetermined angle in the other direction to return to the original state. The configuration is such that the rotation motor 57 can be controlled. Here, the predetermined angle refers to a predetermined angle of 60 ° or more, desirably a predetermined angle of 90 ° or more. Instead of rotating the plate W by a predetermined angle in one direction and rotating it again in the other direction by a predetermined angle to return to the original state, the plate W is rotated 360 ° to return to the original state. No problem.

Next, the operation of the embodiment of the present invention will be described with reference to the flowcharts shown in FIGS.

A predetermined processing schedule is allocated from a number of processing schedules (step 1). Next, the plurality of vacuum pads 3 in the work loading / accumulating device 9
While the upper surface of the plate material W is being sucked by 1, the carry-in slider 29 is moved rightward to release the suction state of the plurality of vacuum pads 31. Thereby, the plate material W can be carried into the work table 13 in the punching machine 3 (step 2).

After the step 2 is completed, the positioning device 1
The punching process is performed on the plate material W by the processing unit 5 while positioning the plate material W in the front-rear direction and the left-right direction by 7 (steps 3 and 4). Next, the plate material W is moved rightward by the positioning device 17 so that the pair of roller tables 47 are moved.
Between the two. Then, the plurality of feed rollers 49 in the pair of roller tables 47 are rotated by driving the pair of feed motors 51, and the plate material W can be sent from the work table 13 in the punching machine 3 to the work reversing machine 7 (step). 5).

After the step 5 is completed, the judging section 67 judges from the schedule number whether or not the sheet material W needs to be reversed based on the processing schedule table (step 6). If it is determined that the necessity of reversing the plate W is determined to be necessary, the reversal control unit 73 controls the rotation motor 57 to reverse the plate W (step 7). On the other hand, the plate material W
If it is determined that the necessity of the inversion is not necessary, the inversion control unit 73
By controlling the rotation motor 57, the plate material W is rotated by a predetermined angle in one direction, and is again rotated by a predetermined angle in the other direction to return to the original state (steps 8 and 9).

After step 7 or step 9 is completed, a plurality of feed rollers 49 of a pair of roller tables 47 are rotated by driving a pair of feed motors 51 to move the plate material W from the work reversing machine 7 to the bending machine 5.
(Step 1)
0). Next, the determination unit 67 determines whether or not bending processing is necessary based on the schedule number based on the processing schedule table (step 11). If it is necessary to perform the bending process, the bending unit 21 performs the bending process on the plate material W while positioning the plate material W in the front-rear direction by the positioning device 23 (steps 12 and 13). On the other hand, when the necessity of the bending processing is not required, the work table 1 in the bending machine 5 is used.
9 through the plate W (step 1)
4).

After step 13 or step 14 is completed, the unloading slider 37 is moved rightward while the ends of the processed plate material W are clamped by the plurality of clampers 39, and the clamper 39 is clamped. Cancel. Thus, the processed plate material W can be unloaded from the work table 19 of the bending machine 5 and accumulated on the work accumulation table 33 of the work unloading and accumulating apparatus 11 (step 15). The operations from step 2 to step 15 are repeated for a predetermined number of plate materials W (step 16).

As described above, according to the embodiment of the present invention, in addition to inverting the plate material W when the necessity of reversal of the plate material W is required, the plate material W is not required when the necessity of reversal of the plate material W is not necessary. Since W is rotated by a predetermined angle in one direction and is rotated by a predetermined angle in the other direction to return to the original state,
Even if the punching waste remains on the upper surface of the plate material W, the punching waste generated by the punching process must be surely dropped from the plate material W before the plate material W is sent to the work table 19 in the bending machine 5. Can be. Therefore, the processing section 21 in the bending machine 5
The punching waste is not pinched by the upper die and the lower die together with the plate material W, and the occurrence of an indentation on the plate material W and the damage of the die can be minimized.

When it is determined that the necessity of reversal of the plate is determined, the work reversing machine is controlled to rotate the plate by a predetermined angle of 60 ° or more. If it does not fall from the roller table, by rotating the feed roller under the pair of upper and lower roller tables, the surface of the swarf with grease or other grease is easily hit by the feed roller and easily. Can be dropped.

[0030]

According to the first aspect of the present invention, in addition to inverting the plate material when it is necessary to invert the plate material,
In the case where the necessity of the reversal of the plate material is not necessary, the plate material is rotated by a predetermined angle of 60 ° or more to return to the original state. Therefore, even if the punched residue remains on the upper surface of the plate material, Before sending to the bending machine, the punching waste generated by punching can be surely dropped from the plate material. Therefore, the punching waste is not pinched with the plate material by the upper and lower dies in the bending machine, and the occurrence of an indentation on the plate material and the damage of the die can be minimized.

According to the second aspect of the present invention, when it is determined that the necessity of reversing the plate is determined, the work reversing machine is controlled to rotate the plate by a predetermined angle of 60 ° or more. By rotating the feed roller below the roller table, the surface of the scrap with oil such as grease is hit by the feed roller and the scrap can be easily dropped.

According to the third aspect, the same effects as those of the first and second aspects can be obtained.

[Brief description of the drawings]

FIG. 1 is a plan view of a work processing system.

FIG. 2 is a plan view of the work reversing machine.

FIG. 3 is a view along a line III-III in FIG. 2;

FIG. 4 is a diagram showing an arrow section IV in FIG. 3;

FIG. 5 is an explanatory diagram showing a processing schedule table.

FIG. 6 is a flowchart.

FIG. 7 is a flowchart.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Work processing system 3 Punching machine 5 Bending machine 7 Work reversing machine 63 System controller 65 Storage unit 67 Judgment unit 73 Reversal control unit

Claims (3)

[Claims] 1. A work reversing device comprising: a punching machine for performing a punching process on a plate material; a bending machine for performing a bending process on the plate material; and rotating the plate material between the punching machine and the bending machine. Machine, and a system controller for controlling the punching machine, bending machine, and work reversing machine.
The system control device includes a storage unit that stores a processing schedule table, and includes a determination unit that determines whether or not plate reversal is necessary based on the processing schedule table stored from the schedule number. When it is determined that the necessity is necessary, the plate is turned over.
A work processing system, comprising: a reversal control unit that controls the work reversing machine so that the work reversing machine is rotated by a predetermined angle of not less than ° to return to an original state. 2. The work reversing machine according to claim 1, further comprising a pair of upper and lower roller tables including a plurality of rotatable feed rollers provided at appropriate intervals in the left-right direction. Work processing system. 3. A step of (i) performing a punching process on a plate material by the punching machine, and sending the plate material from the punching machine to the work reversing machine; and (ii) the step (i) is completed. Later, the determination unit determines whether or not plate reversal is necessary based on the table of the processing schedule from the schedule number, and when the necessity of plate reversal is determined to be necessary, controls the work reversing machine by the reversal control. Then, when it is determined that the necessity of the reversal of the plate material is not required, the reversing control unit controls the work reversing machine to rotate the plate material by a predetermined angle of 60 ° or more to return to the original state. And (iii) after the step (ii) is completed, sending the plate material from the work reversing machine to the bending machine, and performing a bending process on the plate material by the bending machine. Using workpiece processing system of claim 1 or 2, characterized in that it comprises and.