JPH0747277B2 - Cutting machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting machine. More specifically, for a thin plate-shaped processing material such as a ceramic green sheet, it is possible to perform continuous cutting processing in multiple directions on the processing material. Regarding the improvement of the structure related to the above.

[0002]

2. Description of the Related Art Conventionally, as a cutting machine, for example,
The processing material feeding mechanism that moves the conveying film on which the processing material is placed in a certain direction, and the processing material that is placed on the conveying film of the processing material feeding mechanism that is installed at a fixed position on the processing material feeding mechanism and moves up and down the cutting blade. It is known that a plurality of combinations including a cutting mechanism for cutting the are cut in parallel in the feed direction of the processing material.

In this conventional cutting processing apparatus, in order to perform continuous cutting processing of the processing material in a plurality of directions, the processing material is placed at a constant angular position on the conveying film of the processing material feeding mechanism on the frontmost side of the feeding. The cutting mechanism is driven on the moving material to be placed on the transport film of the processing material feeding mechanism to continuously cut the processing material in one direction of the processing material, and then the processing material is connected to the rear side of the feeding. It is mounted on the transport film of the next processing material feeding mechanism that is installed at another angle position, and the cutting mechanism is driven for the processing material that is placed on the transportation film of the processing material feeding mechanism to move the other processing materials. Is continuously cut in the direction of, and the work material is fed one after another and moved to the rear side.

In such a conventional cutting processing apparatus, the operation and work of transferring the processing material to the transfer film of another processing material feeding mechanism in response to the change of the cutting processing direction must be complicated. It has a problem of low processing performance. Furthermore, the number of cutting mechanisms and the number of cutting material feeding mechanisms corresponding to the number of cutting directions must be provided to increase the overall structure and installation area of the device. There is. Furthermore, since the cutting mechanism is fixedly installed, the cutting material must be cut as it is due to the mounting error of the processing material on the transport film of the processing material feeding mechanism and the deviation of the processing material due to the cutting stress in the previous cutting processing. Therefore, there is a problem that processing accuracy is low.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a cutting apparatus having a small apparatus size and high processing performance and processing accuracy.

[0006]

In order to solve the above-mentioned problems, the cutting apparatus according to the present invention has a work table installed horizontally and a conveying film on which a processing material is placed along an upper surface of the work table. A moving material feed mechanism to move,
A cutting mechanism that cuts the processing material placed on the transport film of the processing material feeding mechanism that is individually supported by an actuator that moves the cutting blade up and down, horizontally linearly moves, and horizontally rotates, and the cutting mechanism or the cutting mechanism. A detection mechanism that is supported in the vicinity and detects the position of the processing material under the cutting mechanism, and detects the displacement of the processing material due to cutting stress each time
The gist of the present invention is to provide a controller for checking the cutting mechanism and correcting the cutting mechanism . Further, it is more effective if the actuator for moving the cutting blade up and down according to the first aspect is a servomotor that directly applies a cutting torque to the work material.

[0007]

According to the above technical means, there are the following actions.
(Claim 1) Since there is only one cutting mechanism and one processing material feeding mechanism, the overall structure and installation area of the apparatus can be reduced.
Moreover, the direction of the cutting blade with respect to the work material can be freely changed by horizontally rotating the cutting blade of the cutting mechanism, and the cutting mechanism side is fed and moved continuously with respect to the work material by the horizontal linear movement of the cutting blade. Since it is possible to perform various cutting processes, it is not necessary to carry out a work material replacement operation and work.
Furthermore, based on the detection of the position of the processing material by the detection mechanism, it is possible to appropriately change the direction of the cutting blade by the horizontal rotational movement of the cutting blade of the cutting mechanism. Moreover, even if the work material is misaligned due to cutting stress, the misalignment is confirmed and the cutting mechanism corrects. Therefore, it is possible to accurately perform cutting with a predetermined interval dimension.

Therefore, the problem of providing a cutting apparatus having a small apparatus scale and high processing performance and processing accuracy is solved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cutting apparatus according to the present invention will be described below with reference to the drawings.

In this embodiment, a work material P made of a thin square plate is suitable for cutting into a grid in two orthogonal directions along the same side.

1 and 2 show the entire structure of the apparatus, which includes a processing material feeding mechanism 2, a cutting mechanism 3, and a detection mechanism 4 provided on a work table 1 which serves as a cutting processing surface of the processing material P. Each part is clarified.

The work table 1 is provided with a cutting board 12 which can be raised and lowered by a raising and lowering section 13 at the center of a horizontally installed fixed base 11.

The cutting board 12 has a planar shape corresponding to the entire surface of the processing material P, receives the cutting stress of the cutting mechanism 3, and moves up and down corresponding to the thickness of the processing material P to cut the processing surface of the processing material P. It should be constant. The elevating unit 13 includes an elevating table 13a that abuts the lower surface of the cutting board 12, a cylindrical cam 13b that is fixed to the lower surface of the elevating table 13a, a roller-type cam floor 13c that abuts the cylindrical cam 13b, and a cam floor 13c. Rotating cylinder 13d and pulley 13e fixed to the bottom of the rotating cylinder 13d.
And a belt 13f stretched between the pulley 13e and a motor (not shown), the belt 13f accompanying the rotation of the motor.
By rotating the pulley 13e, the rotary cylinder 13d, and the cam floor 13c, the cylindrical cam 13b and the elevating table 13a are moved up and down.

A guide shaft 13g which is inserted into a fixed frame 13h provided around the rotary cylinder 13d is vertically provided on the lower surface of the lifting table 13a of the lifting unit 13, and the lifting table 13a is accurately stopped by rotating it. It is designed to move up and down in the vertical direction, and between the side of the lift base 13a and the side of the fixed frame 13h, the lift base is
A spring 13i for elastically biasing 13a in the descending direction is stretched to improve followability of descending of the lifting platform 13a due to rotation of the cam floor 13c and the like.

The processing material feeding mechanism 2 includes a conveying film feeding roll 21 provided on one end side of the work table 1, a conveying film winding roll 22 provided on the other end side of the work table 1, and a conveying film feed roll. A transport film 23 wound around the work material P, moved along the upper surface of the work table 1 and wound around a work film winding roll 22, and a reinforcing film provided on one end side of the work table 1. The roll 24, the reinforcing film winding roll 25 provided on the other end side of the work table 1, and the processing film P wound around the reinforcing film feeding roll 24 and the transport film 23 are substantially integrated with the transport film 23. And a reinforcing film 26 which moves along the upper surface of the work table 1 and is wound around a reinforcing film winding roll 25.

As shown in FIG. 5, the processing material feeding mechanism 2 cuts the conveying film 23 and the reinforcing film 26 by cutting the conveying material 23 and the reinforcing film 26 with the processing material P placed thereon. Transport film
23 and the reinforcing film 26 are provided as one-way passages from the conveying film feeding roll 21, the reinforcing film feeding roll 24 to the conveying film winding roll 22 and the reinforcing film winding roll 25.

The cutting mechanism 3 includes a cassette-type cutting blade 31 and
A servo motor 32 that is an actuator that moves the cutting blade 31 up and down, a pulse motor 33 that is an actuator that horizontally moves the cutting blade 31 and a pulse motor 34 that is an actuator that horizontally rotates the cutting blade 31 are provided. , A cutting blade 31 for the processing material P supported by the base frame 5 on the work table 1 and positioned on the cutting board 12 of the work table 1.
Is moved up and down, moved in a horizontal straight line, and moved in a horizontal direction to perform cutting processing.

The cutting blade 31 is formed so that the cutting edge 31b can be projected from and retracted from the cover 31a, and is vertically moved up and down.
It is detachably attached by the cylinder structure and can be automatically replaced by a roboting arm.

The elevating / moving portion 35 is a prism-shaped main body 35a having a mounting portion for the cutting blade 31 at its lower end, and a servo motor which is rotatably incorporated in the central portion of the main body 35a so as to be vertically movable. This elevating / lowering unit 35 is composed of a screw rod 35b connected to the main body 32a, a nut 35c fixed to the main body 35a and screwed to the screw rod 35b, and a rail receiver 35d provided vertically on the side of the main body 35a. It is supported by the horizontal linear movement unit 36 so as to be able to move up and down.

The horizontal linear moving section 36 is a horizontal moving table 36a.
A rail receiver 36b fixed to the lower surface of the moving base 36a and arranged linearly along the horizontal linear movement direction, and a rail receiver 35d vertically fixed to the lower surface of the moving base 36a along the rail receiver 35d of the elevating / lowering moving unit 35. A support frame 36d that supports a rail 36c that is provided to stop the elevating and moving unit 35 and guides the elevating and lowering movement, and a servo motor 32 that stands upright at the center of the upper surface of the moving table 36a and that vertically moves the cutting blade 31. And a nut 36e fixed on the side of the upper surface of the moving table 36a, and a pulse motor 33 that is screwed on the side of the upper surface of the moving table 36a with the nut 36e to move the cutting blade 31 in a horizontal straight line. It consists of a threaded rod 36f. In addition, support frame
The servo motor 32 supported by 36d is coaxially connected to the screw rod 35d of the ascending / descending movement unit 35. This horizontal linear movement unit 36
Are supported by the horizontal rotation moving unit 37 so as to be horizontally linearly movable.

The horizontal rotation moving unit 37 is fixed to the upper surface of the rotating plate 37b, which is rotatably supported horizontally on the base frame 5 so as to surround the elevating moving unit 35 via a bearing 37a. A rail 37c that is arranged along the rail receiver 36b of the horizontal linear moving unit 36 and guides the horizontal linear moving of the horizontal linear moving unit 36, and a cutting blade 31 that is installed upright on the side of the rotary table 37b and moves horizontally. Support frame 37d that supports the pulse motor 33
And a moving gap 37e that is notched in the center of the turntable 37b and allows the horizontal movement of the horizontal movement unit 36 to move the lifting movement unit 35 in one horizontal line, and is fixed to the lower end of the turntable 37b. Timing pulley 37f and timing pulley 37f
And a timing belt 37g suspended between a pulse motor 34 supported by the base frame 5 and having a timing disc 34 'for horizontally rotating the cutting blade 31. The support frame 37d
The pulse motor 33 supported by the
It is connected to the screw rod 36f of the horizontal linear moving part 36 via 3 ″.

The detection mechanism 4 comprises two CCD cameras installed so as to face the cutting blade 31 diagonally downward so as to sandwich the cutting blade 31 in the ascending / descending movement section 35, and has a fixed positional relationship with the cutting blade 31. ing. The detection mechanism 4 detects the position of the processing material P placed on the conveying film 23 and the reinforcing film 26 of the processing material feeding mechanism 2 and located on the cutting board 12 of the work table 1 immediately below the cutting mechanism 3. It should be noted that by providing the detection mechanism 4 and a controller for controlling the drive of the above-mentioned respective parts in cooperation, the cutting processing operation can be automated as described later.

According to such an embodiment, the work material feeding mechanism 2, the cutting mechanism 3 and the detecting mechanism 4 are assembled above the work table 1 so that the structure is extremely compact and the installation area is small. The device scale becomes smaller.
Further, since the servo motor 32 and the pulse motors 33, 34 for driving the cutting mechanism 3 are arranged close to each other, the electric wiring for these is concentrated and simplified, and the ascending / descending movement unit 35 driven by these is also provided. The drive transmission structure for the horizontal linear movement unit 36 and the horizontal rotation movement unit 37 is shortened and simplified. Furthermore, the lifting movement unit 35, the horizontal linear movement unit 36, the horizontal rotation movement unit
Servo motor 32, pulse motor 33, 34 individually for 37
Since it is equipped with a vertical moving unit 35, a horizontal linear moving unit 36,
The drive switching of each part of the horizontal rotation moving part 37 is smoothly and surely performed.

In the cutting process in this embodiment, first, the processing material P is conveyed by the processing material supply mechanism such as a roboting arm to feed the processing material P to the film feed roll.
21. The reinforcing film feeding roll 24 is placed on the conveying film 23 and the reinforcing film 26 on the work table 1 on the side of the reinforcing film 26. The processing material P of this embodiment is a thin square plate and has a chip-like chip portion. With the structure in which Pa is formed and circular position marks at the four corners are formed, it is intended to obtain each chip portion Pa by cutting the processing material P in two crosswise directions along the four peripheries. Therefore, the processing film P is placed so that two sides of the processing material P are orthogonal to each other and the other two sides are parallel to each other in the moving direction of the transport film 23 and the reinforcing film 26. In addition,
If the processing material feeding mechanism 2 is driven as described below,
Corresponding to the movement of the transport film 23 and the reinforcing film 26, the processing material P is placed on the transport film 23 and the reinforcing film 26 one after another at regular intervals.

Further, as a pre-stage for placing the processing material P in this manner, the sample processing material P is placed at an appropriate position on the cutting board 12 of the work table 1, and the position of the processing material P is detected by the detection mechanism 4. An appropriate position of the processing material P is stored in the memory section of the controller, and the controller confirms the positional deviation of the processing material due to the cutting stress with the detection mechanism 4 each time, and the servo motor 32 of the cutting mechanism 3 is detected.
And a correction unit that corrects the pulse motors 33, 34 as an execution mode, and further includes a cutting start position with respect to an appropriate position of the processing material P, a cutting interval, a number of times of cutting in one direction, a changing angle of the cutting direction, a cutting interval, and the like. Enter the required information as the setting mode.

After the processing material P is placed on the conveying film 23 and the reinforcing film 26 of the processing material feeding mechanism 2, the processing material feeding mechanism 2 is driven to move the conveying film 23 and the reinforcing film 26 to the conveying film winding roll 22, The processing material P is moved to the reinforcing film winding roll 25 side and stopped on the cutting board 12 of the work table 1.

At this time, the cutting blade 31 of the cutting mechanism 3 is positioned outside the row of the tip portions Pa at the end of the processing material P at an angle orthogonal to the moving direction of the transport film 23 and the reinforcing film 26 (appropriate cutting start position). As described above, the servo motor 32 and the pulse motors 33, 34 of the cutting mechanism 3 are automatically driven and controlled by the controller. Then, as shown in FIG. 8, the actual position of the processing material P is detected by the detection mechanism 4 using the position mark Pb of the processing material P, and this detection position and the proper position stored in the memory section of the controller are detected. Error of the cutting mechanism 3 is compared based on the comparison error.
2. Correctly drive the pulse motors 33 and 34. As a result, deviation of the cutting position and the like are prevented, and the processing accuracy of the cutting process is greatly improved.

A cutting blade 31 of the cutting mechanism 3 for the processing material P
Is set to an appropriate position, the pulse motor 33 is driven to intermittently move the horizontal linear moving portion 36 (every interval between the tip portions Pa of the processing material P) while the servo motor 32 is moved.
To move the lifting / lowering movement unit 35 up and down,
23, the reinforcing film 26 is continuously cut along a cutting line perpendicular to the moving direction of the moving direction (see FIG. 6).
At this time, the position of the tip portion Pa of the processing material P is detected by the detection mechanism 4 for each cutting, and the presence or absence of the positional deviation of the processing material P due to the cutting stress is compared, and the servo motor of the cutting mechanism 3 is compared.
32, pulse motors 33, 34 are corrected as necessary.

In the cutting process in such a direction (the same direction as the moving direction of the transport film 23 and the reinforcing film 26), the pulse motor 33 of the cutting mechanism 3 is stopped and the work material feeding mechanism 2 is intermittently driven. It is also possible.

When the cutting in this one direction is completed, the pulse motor 34 of the cutting mechanism 3 is driven while the processing material P is left as it is, and the horizontal rotation moving portion 37 is horizontally rotated by 90 degrees, and the same as above. Cutting is continuously performed in a direction orthogonal to the tip direction (see FIG. 7). That is, it is not necessary to replace the processing material P as in the conventional case, which reduces the processing efficiency of the cutting processing. As a result, unexpected damage to the processing material P due to replacement of the processing material P is prevented. Needless to say, the correction is performed based on the detection by the detection mechanism 4 even in the cutting process in this direction.

In this cutting process, as shown in FIG. 5, the cutting blade 31 of the cutting mechanism 3 cuts from the processing material P to the conveying film 23 and the reinforcing film 26 so that reliable cutting is performed. There is.

When the cutting processing in the two directions is completed in this way, the next processing material P is processed by the processing material feeding mechanism 2.
Is placed on the cutting board 12 of the work table 1 and the cutting process is performed as described above. In this case, since the cutting blade 31 of the cutting mechanism 3 is oriented in a direction orthogonal to the start of cutting the processing material P, it is efficient to perform cutting from the opposite direction. Further, the cut processing material P is taken out from the transport film winding roll 22 and the reinforcing film winding roll 25 side by a processing material collecting mechanism such as a roboting arm.

As described above, in addition to the illustrated embodiment, the cutting mechanism 3
By controlling the horizontal rotational movement by the pulse motor 34 to another angle, it is possible to perform continuous cutting in complicated directions and in three or more directions.

Further, the cutting mechanism 3 is used to change the direction of the cutting process.
Since it is carried out by the horizontal rotation movement of the side, it is also possible to perform cutting processing in different directions for the processing materials P successively sent onto the cutting board 12 of the work table 1 by the processing material feeding mechanism 2.

It is also possible to fix the detection mechanism 4 to the base frame 5 or the like and detect the relative positions of both the cutting blade 31 of the cutting mechanism 3 and the processing material P.

[0036]

As described above, the cutting apparatus according to the present invention is extremely compact and has a small installation area because of the structure in which each part is assembled above the work table which is the cutting surface of the processing material. There is an effect that the device scale becomes small.

Further, since the direction of the cutting process can be changed by the horizontal rotational movement on the side of the cutting mechanism and it is not necessary to replace the processing material as in the conventional case, the effect of efficiently performing the cutting process is obtained. is there. Also, due to this effect,
There is an effect that the processing time of cutting processing can be shortened and the processing cost can be reduced.

Further, since the controller is equipped with a controller for checking the displacement of the processing material due to the cutting stress each time by the detection mechanism and correcting the cutting mechanism, the processing material may be displaced due to the cutting stress during the cutting processing. Even if there is, continuous cutting processing of the processing material in a plurality of directions can be performed with high accuracy with a set interval.

Further, since it is not necessary to replace the processing material as in the conventional case, there is an effect that the processing material is not accidentally damaged during the cutting processing.

Further, since the actuators for driving the respective parts of the cutting mechanism are individually provided, there is an effect that the drive switching of the respective parts of the cutting mechanism is smoothly and surely performed.

Further, since the actuators for driving the respective parts of the cutting mechanism are arranged close to each other, the electric wiring for the actuators is concentrated and simplified, and the drive transmission structure to the respective parts driven by the actuator is shortened and simplified. There is an effect. If the actuator that moves the cutting blade up and down is a servo motor that applies a cutting torque to the processing material, the cutting torque of the cutting blade can be adjusted and controlled according to the material of the processing material and the state of the cutting blade. Signals can be fed back, and during cutting at high speed and continuously, it is possible to prevent a decrease in processing performance due to a delay in the time required for the cutting blade to move up and down and a decrease in processing accuracy due to defective cutting or the like. Therefore, the cutting force can be appropriately adjusted according to the processing material, the cutting efficiency can be improved, and highly accurate cutting processing can be promised.

[Brief description of drawings]

FIG. 1 is a front sectional view showing an embodiment of a cutting apparatus according to the present invention.

FIG. 2 is a central vertical sectional view of FIG.

FIG. 3 is an enlarged sectional view taken along line XX of FIG.

FIG. 4 is an enlarged cross-sectional view taken along line YY of FIG.

FIG. 5 is an enlarged cross-sectional view of a main part showing a cut / cut state of a processing material or the like.

FIG. 6 is a plan view showing a cutting processing state in one direction.

FIG. 7 is a plan view showing a cutting processing state in a direction different from that of FIG. 6;

FIG. 8 is a plan view showing an example of the position of the processing material and a correction example associated with the detection.

[Explanation of symbols]

 1 Working Table 2 Processing Material Feeding Mechanism 23 Conveying Film 3 Cutting Mechanism 31 Cutting Blade 32 Servo Motor (Actuator) 33 Pulse Motor (Actuator) 34 Pulse Motor (Actuator) 4 Detection Mechanism P Processing Material

Claims (2)

[Claims] 1. A horizontally installed work table, a work material feeding mechanism for moving a conveying film on which a work material is placed along an upper surface of the work table, and a cutting blade which is vertically moved.
A cutting mechanism that has an actuator that moves horizontally in a straight line and that rotates horizontally and that is supported on the work table and that cuts the processing material placed on the transport film of the processing material feeding mechanism, and the processing material that is supported in or near the cutting mechanism. The detection mechanism that detects the position under the cutting mechanism of the
Check the displacement of the processing material with the detection mechanism each time
A cutting device comprising a controller for correcting the cutting mechanism . 2. An actuator for moving the cutting blade up and down.
The servo motor applies the cutting torque directly to the processed material.
The cutting processing device according to claim 1, wherein