WO2009141864A1 - Bending angle detection device and plate bending method - Google Patents

Bending angle detection device and plate bending method Download PDF

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Publication number
WO2009141864A1
WO2009141864A1 PCT/JP2008/059207 JP2008059207W WO2009141864A1 WO 2009141864 A1 WO2009141864 A1 WO 2009141864A1 JP 2008059207 W JP2008059207 W JP 2008059207W WO 2009141864 A1 WO2009141864 A1 WO 2009141864A1
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WO
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Patent type
Prior art keywords
bending
plate
angle
sensor ring
motor
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Application number
PCT/JP2008/059207
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French (fr)
Japanese (ja)
Inventor
水河 末弘
Original Assignee
Mizukawa Suehiro
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209Tools therefor

Abstract

A bending angle detection device reduces labor required for operation to determine what extent of bending of a plate corresponds to what degree of angle of the bent portion of the plate. The bending angle detection device (50) has a sensor ring L (64), a holder (62), a bearing (70), a motor body of a servomotor (60), and a rotation angle sensor (102). The sensor ring L (64) generates a signal depending on whether it is in contact with a blade material plate or not. The holder (62) and the bearing (70) rotatably connect the sensor ring L (64) to a bending machine. The motor body of the servomotor (60) is driven so as to rotate the sensor ring L (64). The rotation angle sensor (102) detects the rotation angle of the sensor ring L (64). The holder (62) and the bearing (70) connect the sensor ring L (64) to the bending machine so that the rotation axis of the blade member plate and the rotation axis of the sensor ring L (64) are aligned with each other when the bending machine bends the blade material plate.

Description

Bending angle detecting device and the plate bending method

The present invention relates to a method bending the bending angle detecting device and the plate, in particular, the plate how much Orimagere if bent portion of the angle can reduce the labor required for the work to understand what will many times bending angle detection device and a plate bending method.

Patent Document 1 discloses a bending apparatus of the plate. The apparatus includes a stationary mold and a fixed mold movable mold fitted to the rotatable shaft of which includes a slit.

According to the invention disclosed in Patent Document 1, not the parallelism of the pair of pressing die portion which faces the movable die during bending is compromised, only the shaft without disassembling the gears and movable type rotation transmission mechanism the can be easily replaced.

Patent Document 2 discloses a bending method of the plate. This method feeds the plate from the outlet, when the feeding of the plate is stopped, a method for bending the plate against the plate on the outlet end.

According to the invention disclosed in Patent Document 2, it is possible to bent as easily and quickly plate and skilled to a desired shape in amateur.

Patent Document 3 discloses a bending method of the plate. This method is repeated described below two step process. The first step is to keep contacting the feed bearing plate. The second step, while feeding the plate intermittently through a slit which is provided in fixed, every time the feeding of the plate is stopped by shutdown of the servomotor, pushing the plate to the outlet corner of the slit by the pusher a step of bending Te.

According to the disclosed in Patent Document 3 invention, when going automatically bent one after another plurality of portions of the plate such as blade member may define the plurality of bent portions accurately.

Patent Document 4 discloses a machining apparatus of the plate. The apparatus comprises a bending shape input unit, the characteristic data input unit, and an arithmetic unit. Bending shape input unit receives an input of a geometric bending shape of the plate long. Characteristic data input unit receives an input of characteristic data relating to bending of the plate. Calculation unit calculates the bending data plate on the basis of the bending shape input unit geometrical bending accepted machining shape and property data input unit accepts characteristic data.

According to the disclosed in Patent Document 4 invention may perform processing of the plate accurately by considering the characteristics related to bending of the plate.
WO 95/00266 pamphlet JP 2001-353528 JP JP-8-215761 discloses JP-6-304685 discloses

However, in the invention disclosed in Patent Documents 1-3, the user has a problem that it is difficult to bend the plate to the desired angle. When releasing the force after a force for bending the plate, because the angle of the portion in which the spring-back is folded occurs varies. The "spring back" after adding force to the plate to such an extent that plastic deformation occurs, and removal of force from the plate, means a phenomenon in which by elastic deformation is eliminated out of the deformation of the plate. Angle of bent plates that how much variation by the spring back is difficult to predict.

The disclosed in Patent Document 4 invention, although may accurately perform machining of the plate long, there is a problem that it is difficult to acquire the characteristic data necessary for this purpose. Usually, from the measurement results of the bending angle of the bent portion by bending the data of how bending degree plate during processing, characteristic data is generated. When producing such a manner characteristic data necessary to process the data after repeated and bending and measurement of samples produced by it occurs. This work are those requiring a lot of time and effort. This work is increased and the required time and labor for the entire work bending.

The present invention was made to solve the above problems, its object is less effort is required to work to grasp how the angle of the bent portion if Orimagere how the plate becomes over again it can be to provide a bending angle detecting device and plate bending methods.

To achieve the above object, according to an aspect of the present invention, the bending angle detecting device, the folded sheet by the bending machine, detects the angle of the bent portion. Bending angle detecting device detects an angle in a state where the plate bending machine is mounted.

Bending angle detecting device, bending since the machine the plate to detect the angle in a state of being attached, it is not necessary to measure the angle removed from machine bending bent plate. Since it without removing the bent bent plate machine, effort spent on that point is zero. As a result, it is possible to reduce the labor required for the work to grasp how the angle of the bent portion if Orimagere how the plate becomes over.

Further, the above-mentioned bending angle detecting device, it is desirable that the orientation and bending machine prior to plate bending machine bending the plate to measure the orientation of the plate after bending a plate.

Or, the above bending angle detecting device, by contacting a plate, it is desirable that the orientation and bending machine prior to plate bending machine bending the plate to measure the orientation of the plate after bending a plate .

Or, the above-mentioned bending angle detecting device includes a signal generator for generating a signal corresponding to whether or not in contact with the plate, and a connecting portion for connecting the signal generator to the bending machine rotatably, signal generator a driving device for driving to rotate, it is desirable to provide a rotation angle detecting device for detecting a rotation angle of a signal generation device. In addition, the connecting portion, a bending machine is such that and the rotation axis of the rotary shaft and the signal generating device of a plate when bending the plate matches, it is desirable to connect the signal generator to the bending machine.

The connection unit, the signal generating device, a bending machine is such that the rotational axis of the rotary member and the rotation axis of the plate at the time of bending the plate matches, is rotatably connected to the bending machine. Further, the signal generator is driven to rotate by the drive device. Further, the rotation angle of the signal generator is detected by the rotation angle detecting device. Thus, the rotation angle of the signal generator will correspond to the rotation angle of the plate which is bent by the bending machine. Signal generating device, because it produces a signal corresponding to whether or not in contact with the plate, by detecting the rotation angle of the signal generation device when the signal is generated by the rotation angle detecting device, the bending machine without removing the plate, it is possible to detect the rotation angle of the plate which is bent by the bending machine. Because it detects the rotation angle without removing the plate from the bending machine, it is possible to reduce the labor required for the work to grasp how the angle of the bent portion if Orimagere how the plate becomes over.

Or, the above-described driving device, it is desirable to have a motor. In addition, the rotation angle detection device, it is desirable to have a sensor. Sensors, by detecting the rotation angle of the motor rotor, indirectly detects the rotation angle of the signal generator.

Or, the above-mentioned driving device, it is desirable to have a motor, and a cushioning material. Cushioning material is connected between the motor and the signal generator, the motor is to transmit torque to be supplied to the signal generator, the motor is elastically deformed by the torque supplied.

According to another aspect of the present invention, a method bending plate is a method of bending a plate by bending machine. Plate bending method, the spring back generated when bending the plate, by bending angle detecting device which is connected to the bending machine, is measured in advance in a state in which the plate bending machine is mounted, the measured results based bending angle of the plate when bending a plate is corrected, it is corrected bending process of bending the plate on the basis of the angle.

METHOD bending angle detecting device and a plate bent according to the present invention, it is possible to reduce the labor required for the work to grasp how the angle of the bent portion if Orimagere how the plate becomes over.

It is an external view of a bending angle detecting device according to an embodiment of the present invention. It is an exploded view of the bending angle detecting device according to an embodiment of the present invention. It is an external view of a servo motor according to an embodiment of the present invention. It is a cross-sectional view of a portion of the servo motor according to an embodiment of the present invention. It is an external view of a spring joint according to an embodiment of the present invention. It is an exploded view of a spring joint according to an embodiment of the present invention. It is a cross-sectional view of a spring joint according to an embodiment of the present invention. It is a first diagram showing an operation when the torque of the spring joint according to an embodiment of the present invention is applied. It is a second diagram showing an operation when the torque of the spring joint according to an embodiment of the present invention is applied. It is an external view of the holder according to the embodiment of the present invention. It is an external view and a cross-sectional view of the sensor ring L according to the embodiment of the present invention. It is a perspective view of the sensor ring L according to the embodiment of the present invention. It is an external view and a cross-sectional view of the sensor ring R according to the embodiment of the present invention. It is a perspective view of the sensor ring R according to the embodiment of the present invention. It is an arrow view of the bending angle detecting device according to an embodiment of the present invention. Is an arrow view in a situation where removal of the sensor ring L of the bending angle detecting device according to an embodiment of the present invention. Is a first cross-sectional view of a state where removal of the servomotor bending angle detecting device according to an embodiment of the present invention. Is a second cross-sectional view of a state where removal of the servomotor bending angle detecting device according to an embodiment of the present invention. It is a perspective view of a bending machine. It is a perspective view showing a situation where attached to bending machine bending angle detecting device according to an embodiment of the present invention. It is a control block diagram of a bending machine. The bending axis of the slit is a conceptual diagram showing a situation in which passed through the blade member plate. The claws of the rotary cylinder is a conceptual diagram showing a situation in contact with the blade member plate. The microswitch R according to an embodiment of the present invention is a conceptual diagram showing a situation in contact with the blade member plate to prepare. Blade member plate by the pawl of the rotary cylinder is a conceptual diagram showing the situation at the time when bent. The microswitch R according to an embodiment of the present invention is a conceptual diagram showing a situation in contact with the blade member plate in order to measure the angle. It is a conceptual diagram illustrating a situation obtained by reversely rotating the microswitch R according to an embodiment of the present invention. Is a flowchart showing the control procedure of the measurement process of the spring-back according to an embodiment of the present invention. Motion of the microswitch R according to an embodiment of the present invention is a conceptual diagram showing a situation that is bound to the blade member plate in the middle being measured springback. Microswitch R according to an embodiment of the present invention is a conceptual diagram showing a situation that detects the position after the blade member plate is bent. Microswitch R according to an embodiment of the present invention is a conceptual diagram showing a situation in which measured the position after spring back of the blade member plate. Is a flowchart showing the control procedure of the bending process of the blade member plate according to an embodiment of the present invention.

DESCRIPTION OF SYMBOLS

50 bending angle detecting device 60 servo motor 62 holder 64 sensor ring L
66 sensor ring R
68 spacer 70 bearing 72 bolt 80 machine 90 rotating cylinder 91 touch panel 92 bending axis 93 cylinder rotating motor 94, 95 top plate 96, 97 the gear case 98 controller 100 motor main body 102 rotation angle sensor 104 the spring joint 106 first gear 108 second gear 110 upper rotary cylinder 112 first spring 114 middle rotary cylinder 116 and the second spring 118 bottom rotary cylinder 130, 132, 134 protrusions 140, 142, 144 holes 150, 160 body 152 microswitch L
154, 164 a gear 156 sector of the plate 158, 168 groove 162 microswitch R
166 protrusion 170, 172 rotary shaft 180 cylindrical rotary motor I / O
182 first external I / O
184 second external I / O
186 third external I / O
188 touch panel I / O
190 flash memory reader 300 blade member plate 350 flash memory

Hereinafter, with reference to the drawings, embodiments of the present invention will be described. The following detailed description of a preferred embodiment of the above summary, as well as the invention of the present invention will be better understood when read in conjunction with the accompanying drawings. To illustrate the present invention and preferred embodiments currently shown in the drawings. In the following description, the same components are denoted by the same reference numerals. Their names and functions are also the same. Therefore, the detailed description thereof will not be repeated for them.

Figure 1 is an external view of a bending angle detecting device 50 according to the present embodiment. Figure 2 is an exploded view of the bending angle detecting device 50 according to the present embodiment. Figure 3 is an external view of the servo motor 60. Figure 4 is a cross-sectional view of a portion of the servo motor 60. Figure 5 is an external view of a spring joint 104. Figure 6 is an exploded view of the spring joint 104. Figure 7 is a cross-sectional view of the spring joint 104. 8 and 9 are diagrams illustrating the operation of the spring joint 104 when the applied torque. Figure 10 is an external view of the holder 62. Figure 11 is an external view and a cross-sectional view of the sensor ring L64. Figure 12 is a perspective view of the sensor ring L64. Figure 13 is an external view and a cross-sectional view of a sensor ring R66. Figure 14 is a perspective view of the sensor ring R66. Figure 15 is an A arrow view of FIG. Figure 16 is a diagram showing a situation in which removal of the sensor ring L64 in FIG. Figure 17 is a cross-sectional view of the bending angle detecting device 50 in a state in which removal of the servo motor 60. Figure 18 is a cross-sectional view of the bending angle detecting device 50 as viewed from a direction orthogonal to FIG. 17. Figure 19 is a perspective view of a bending machine 80 for bending angle detecting device 50 is attached according to the present embodiment. Figure 20 is a perspective view showing a situation where attached to machine 80 to bend the bending angle detecting device 50. Figure 21 is a control block diagram of the bending machine 80. 22, because the bending by the claw of the rotary cylinder 90 is a conceptual diagram illustrating a situation in which passed through the blade member plate 300 in a slit (not shown) of the bending axis 92. Figure 23 is a conceptual diagram showing a situation in which the pawl of the rotary cylinder 90 is brought into contact with the blade member plate 300 to initiate the bending of the blade member plate 300. Figure 24 is a conceptual diagram showing a situation in contact with microswitch R162 to the blade member plate 300 in preparation for measuring the angle of the bent blade member plate 300. Figure 25 is a conceptual diagram showing the situation when the blade member plate 300 is bent by the claws of the rotary cylinder 90. 26, after the blade member plate 300 is bent is a conceptual diagram showing a situation in contact with microswitch R162 for measuring the angle. 27, after the angle of the blade member plate 300 is measured, is a conceptual diagram illustrating a situation obtained by reversely rotating the microswitch R162. Figure 28 is a flowchart showing a control procedure for measuring the spring-back. Figure 29 is a conceptual diagram showing a situation where the motion of the microswitch R162 is constrained to the blade member plate 300 in the middle being measured springback. Figure 30, after the blade member plate 300 is bent is a conceptual diagram illustrating a situation where the microswitch R162 is detecting the position of the blade member plate 300. Figure 31 is a conceptual diagram showing a situation where the microswitch R162 is measuring the position after spring back of the blade member plate 300. Figure 32 is a flowchart showing a control procedure for folding accurately blade member plate 300 on the basis of the springback stored in advance.

Bending angle detecting device 50 according to this embodiment is attached to the bending machine 80. Bending angle detecting device 50 is bent is connected to the processing machine 80, to measure the angle of the plate bent by the bending machine 80. It will be described later bending machine 80.

Bending angle detecting device 50 according to the present embodiment includes a servo motor 60, a holder 62, a sensor ring L64, a sensor ring R66, a spacer 68, and a bearing 70.

The servo motor 60 is controlled by the control unit 98 of the bending machine 80 will be described later. Servomotor 60 drives the sensor ring L64 and the sensor ring R66. The holder 62 includes a servo motor 60 and the sensor ring L64 and sensor ring R66 is attached. Further, the holder 62, the tip of the bending axis 92 of the bending machine 80 is fitted. Bending axis 92, like bending the rotary cylinder 90 is a component of the machine 80 after having penetrated, is fitted to the holder 62. Sensor ring L64 from one side of the blade member plate 300, to measure the angle of the bent portion of the blade member plate 300. Sensor ring R66 is the sensor ring L64 for measuring the angle of the bent portion of the blade member plate 300 from the opposite side. The spacer 68 is a member for keeping the bearings 70 in place. Bearing 70 is, so that the sensor ring L64 and the sensor ring R66, and the axes of rotation of the blade member plate 300 when the bending machine 80 bends the blade member plate 300 and the sensor ring L64 and sensor ring R66 match, it is a member for rotatably positioning. Incidentally, the spacer 68 and the bearing 70 is connected to the holder 62 by a bolt 72.

With reference to FIGS. 3 and 4, will be described servo motor 60. The servo motor 60 includes a motor body 100, a rotation angle sensor 102, a spring joint 104, a first gear 106, a second gear 108. Motor main body 100, first gear 106 and second gear 108 produces a torque for rotating. This torque sensor ring L64 and sensor ring R66 is driven. Rotation angle sensor 102 detects the rotation angle of the rotor of the motor main body 100. Spring joint 104 is attached to the rotational axis of the rotor and the first gear 106 and second gear 108 of the motor unit 100, transmits torque to the motor unit 100 has generated the first gear 106 and second gear 108. The first gear 106 meshes with gear 154 of the sensor ring L64, transmits torque to the sensor ring L64. The second gear 108 meshes with gear 164 of the sensor ring R66, transmits torque to the sensor ring R66.

Referring to FIGS. 5 to 7, a description will be given of the structure of the spring joint 104. Spring joint 104 includes an upper rotary cylinder 110, a first spring 112, a middle rotary cylinder 114, a second spring 116, a lower rotary cylinder 118.

The upper rotary cylinder 110, the rotor of the motor main body 100 is fitted. Upper rotary cylinder 110 to transmit torque to the motor body 100 is generated in the middle rotary cylinder 114. The lower end of the upper rotary cylinder 110, the protrusion 130 is provided. The first spring 112 is fitted into the upper rotary cylinder 110 and the middle rotary cylinder 114, when the upper rotary cylinder 110 is unable to transmit the torque directly to the middle rotary cylinder 114, middle rotary cylinder the torque motor body 100 is generated 114 transmitted to. Middle rotary cylinder 114 is fitted into the upper rotary cylinder 110 and the lower rotary cylinder 118 while penetrating the first spring 112 and second spring 116. Middle rotary cylinder 114, transmits torque to the upper rotary cylinder 110 or the first spring 112 is transmitted to the second spring 116. The central portion of the middle rotary cylinder 114, the protrusion 132 is provided. The second spring 116 is fitted into the middle rotary cylinder 114 and the lower rotary cylinder 118, when the middle rotary cylinder 114 is unable to transmit the torque directly to the lower rotary cylinder 118, the lower rotary cylinder the torque motor body 100 is generated 118 transmitted to. The rotation axis of the first gear 106 and second gear 108 is fitted to the lower rotary cylinder 118. Lower rotary cylinder 118, transmits torque to the motor unit 100 is generated to the rotation shaft of the first gear 106 and second gear 108. At the upper end of the lower rotary cylinder 118, the protrusion 134 is provided.

Here, with reference to FIGS. 8 and 9, the operation of the spring joint 104. Torque clockwise direction and is transmitted to the spring joint 104 as viewed from the motor body 100. At this time, the upper rotary cylinder 110 is rotated in the same direction as the rotor of the motor main body 100. When the upper rotary cylinder 110 rotates, the projections 130 of the upper rotary cylinder 110 pushes the projection 132 of the middle rotary cylinder 114. By protrusion 132 is pressed, even middle rotary cylinder 114 rotates in the same direction as the rotation shaft of the motor main body 100. When middle rotary cylinder 114 is rotated, the torque motor unit 100 has generated is transmitted to the lower rotary cylinder 118 via the second spring 116. However, this time, since the second spring 116 is deformed, the torque transmitted to the lower rotary cylinder 118 is not so large. When taking a resistor to the lower rotary cylinder 118 for some reason, the lower rotary cylinder 118 is not rotated.

On the other hand, as viewed from the motor body 100 torque in the counterclockwise direction and it is transmitted to the spring joint 104. At this time, the upper rotary cylinder 110 is rotated in the same direction as the rotation shaft of the motor main body 100. However, the projections 130 of the upper rotary cylinder 110 does not push the projection 132 of the middle rotary cylinder 114. Torque motor body 100 has generated is transmitted to the middle rotary cylinder 114 by the first spring 112. However, this time, since the first spring 112 is deformed, the torque transmitted to the middle rotary cylinder 114 is not so large. When taking a resistor to the lower rotary cylinder 118 for some reason, since through the protrusion 132 and the protrusion 134 takes the resistance in the middle rotary cylinder 114, middle rotary cylinder 114 is not rotated.

With reference to FIG. 10, a description will be given of the structure of the holder 62. The holder 62 is provided with a hole 140, a hole 142, and a hole 144. The rotation axis of the first gear 106 and second gear 108 penetrates the hole 140. The tip of the bending axis 92 of the bending machine 80 is fitted into the hole 142. Bolts for securing the holder 62 to the bending machine 80 penetrates the hole 144. Further, the sensor ring L64 and the sensor ring R66 is connected to the holder 62 in a rotatable state by the bearing 70.

With reference to FIGS. 11 and 12 to describe the configuration of the sensor ring L64. Sensor ring L64 are those having a microswitch L152 and the gear 154 to the body 150. Body 150 is shaped as turned over what sidewall is open round hole in the bottom cylindrical. The part that is the bottom of the main body 150 at the upper i.e. 11 of the side wall is attached is fan-shaped plate 156, the micro switch L152 is fixed to an upper end of the plate 156 and the side wall of the fan. Microswitch L152 is provided with a contact plate attached via a hinge to the switch box and the switch box push-button switch is built. When bending in contact with the blade member plate 300 to be bent at machine 80 plate is in contact, the contact plate presses the switch in the switch box. Thus, sensor ring L64 will operate as an apparatus for generating a signal corresponding to whether or not in contact with the blade member plate 300. Further, the gear 154 is provided on the edge of the hole portion has a top plate of the main body 150 in FIG. 11. However, the gear 154 is not the provided on the entire circumference of the edge. Some of the edge, the portion gear 154 is not provided there. The slightly below the gear 154 groove 158 flange bearing 70 is fitted is provided.

With reference to FIGS. 13 and 14 to describe the configuration of the sensor ring R66. Sensor ring R66 are those having a microswitch R162 and gear 164 to the body 160. Body 160 is cylindrical. The lower end of the side wall of the main body 160 is provided with protrusions 166, and there microswitch R162 is attached to. Micro switch R162 has a structure similar to that of the micro-switch L152. Therefore, sensor ring R66 is similar to the sensor ring L64, and generates a signal corresponding to whether or not in contact with the blade member plate 300. Gear 164 is provided on the upper edge of the main body 160 in FIG. 13. However, the gear 164 is not the provided on the entire circumference of the edge. Some of the edge, the portion gear 164 is not provided there. The slightly below the gear 164 groove 168 flange bearing 70 is fitted is provided.

Referring to FIGS. 15 to 18, illustrating the other arrangement the sensor ring L64. As described above, the sensor ring L64 and the sensor ring R66 is connected to the holder 62. Sensor ring L64 and sensor ring R66 is not being directly connected to the holder 62. What is directly connected to the holder is a spacer 68. Bearing 70 via a spacer 68 is connected to the holder 62. Sensor ring L64 and the sensor ring R66 by the flange of the bearing 70 is fitted into the groove 158 and the groove 168 of the sensor ring R66 of the sensor ring L64 is indirectly connected to the holder 62.

At this time, the gear 154 of the sensor ring L64 engages the first gear 106, the gear 164 of the sensor ring R66 is meshed with the second gear 108. Accordingly, the torque motor unit 100 of the servo motor 60 has generated is transmitted to the sensor ring L64 and the sensor ring R66.

Fixed position and a fixed position of the sensor ring R66 of the sensor ring L64 differ from. Since they are different, different from the rotary shaft 170 and the rotation shaft 172 of the sensor ring R66 of the sensor ring L64. A rotary shaft 170 and the rotation shaft 172 is located near the edge of the folded blade member plate 300 by the rotation cylinder 90. More specifically, as the blade member plate 300 by the rotary cylinder 90 is coincident with the rotation axis when being bent in one direction, the rotary shaft 170 is arranged, when the blade member plate 300 is bent to the other to match the rotation axis, the rotation shaft 172 is arranged. By rotating shaft 170 and the rotating shaft 172 and the blade member plate 300 is matched with the rotation axis when being folded, and the rotation angle of the sensor ring L64 or sensor ring R66 is equal to the bending angle of the plate Become. Incidentally, in many cases, the rotary shaft when the blade member plate 300 is bent, there from the tip of the claw of the rotary cylinder 90 to a thickness 1 of 2 minutes of the blade member plate 300 and the blade member plate in that from 300 side of the first 2 minutes of its thickness.

Referring to FIGS. 19 to 20, the description will be given of the mounting form of the bending angle detecting device 50. Bending machine 80 comprises a top plate 94 and the gear case 96. Bending axis 92 in the holes of the top plate 94 is fitted. Gear case 96 houses a gear (not shown). This gear is a gear for transmitting torque to the bearing feed (not shown) for feeding the blade member plate 300. For mounting the bending angle detecting device 50, it is replaced with another top plate 95 and the gear case 97 and the top plate 94 and the gear case 96. Not provided with holes for fitting the bending axis 92 in the top plate 95, the gear case 97 is provided with threaded holes bolts passing through the holder 62 is screwed. That is, the bending angle detecting device 50, by the holder 62 is screwed to the gear case 97, will be connected to the bending machine 80.

Incidentally, the bending machine 80 further includes a touch panel 91 and the tube rotating motor 93. The touch panel 91 displays the information, and a device for a user to input information. Cylindrical rotary motor 93 drives the rotary cylinder 90.

Referring to FIG. 21, the control unit 98 of the bending machine 80 will be described. Bending machine 80 in addition to the touch panel 91 and the cylinder rotating motor 93, a control unit 98. When bending angle detecting device 50 is not connected, the control unit 98 controls the bending against the blade member plate 300. When bending angle detecting device 50 is connected, the control unit 98, in addition to bending relative to the blade member plate 300, to control the angle measurement by bending angle detecting device 50. Control unit 98 includes a cylinder rotary motor I / O (input / output) 180, a first external I / O182, and a second external I / O184, a third external I / O186, a touch panel I / O188, flash It includes a memory reader 190, and ROM (read Only memory) 192, a RAM (Random Access memory) 194, a CPU (Central Processing unit) 196.

Cylindrical rotary motor I / O180 outputs a control signal to the cylinder rotation motor 93. The first external I / O182 is connected to the servo motor 60 receives an input of information indicating the rotation angle from the rotation angle sensor 102, and outputs a control signal to the motor main body 100. Second external I / O184 receives a signal input from the microswitch L152. Third external I / O186 receives a signal input from the microswitch R162. The touch panel I / O188 outputs the image signal to the touch panel 91, and accepts an input of information by the user through the touch panel 91. Flash memory reader 190 reads a control program for executing the flash memory 350 CPU 196 is. The control program is not only bent against the blade member plate 300 is a program for performing control on the bending angle detecting device 50. ROM192 reads the control program from the flash memory 350 stores a program for executing this. RAM194 temporarily stores a control program read from the flash memory 350. Further, RAM 194 temporarily stores data for CPU196 processes information. CPU196, by sequentially executing a control program stored in the RAM 194, controls the angle measurement by bending or folding angle detector 50 for the blade member plate 300.

Referring to FIGS. 22 to 27, illustrating the procedure for measuring the angle of the blade member plate 300 in the bending angle detecting device 50 according to the present embodiment.

A position on the opposite side of the servo motor 60 to the bending axis 92, and a fan-shaped plate 156 and the protrusion 166 is disposed in contact with each other. In the present embodiment, the position of the sensor ring L64 and the sensor ring R66 in this case is referred to as a "reference position". In this state, feeding the blade member plate 300 roller feed (not shown) of the bending machine 80 from between the bending axis 92 slits. Figure 22 shows this situation.

When the blade member plate 300 is fed out, the control unit 98, by through the cylindrical rotary motor I / O180 outputs a control signal to the cylinder rotation motor 93, drives the cylinder rotating motor 93. Thus, the rotary cylinder 90 is rotated, the tip of the pawl reaches the bending start position. Figure 23 shows this situation.

When the tip of the claw of the rotary cylinder 90 reaches the bending start position, the servo motor 60 under the control of the control unit 98, it generates a torque. Its torque is transmitted to the sensor ring L64 and the sensor ring R66 via the first gear 106 and second gear 108. Thus, sensor ring R66 is rotated. Sensor ring L64 is rotated initially, but stops the rotation in the middle. As shown in FIG. 11, the gear 154 is not the provided on the entire circumference edge of the main body 150. As a result, the first gear 106 does not mesh with the gear 154. Control unit 98, based on the rotation angle data rotation angle sensor 102 is inputted, it knows the rotation angle of the second gear 108. As a result, the control unit 98 will also rotation angle of the microswitch R162 indirectly grasped. Upon contact with the blade member plate 300, the micro switch R162 inputs the signal to the third external I / O186. CPU196 detects the rotation angle of the microswitch R162 based on the rotation angle of the second gear 108 of the time the microswitch R162 inputs a signal. Figure 24 shows this situation.

When the rotation angle of the microswitch R162 is detected, the control unit 98 drives the cylinder rotating motor 93. Thus, the rotary cylinder 90 is rotated, the tip of the claw of the rotary cylinder 90 is bending the blade member plate 300. Figure 25 shows this situation.

When the blade member plate 300 is bent, the servo motor 60 under the control of the control unit 98, generates a torque. Its torque is transmitted to the sensor ring R66 via the second gear 108. Thereby, the microswitch R162 is rotated again. If again in contact with the blade member plate 300, the micro switch R162 inputs again a signal to the third external I / O186. Figure 26 shows this situation. CPU196 detects the rotation angle of the microswitch R162 based on the rotation angle of the second gear 108 of the time the microswitch R162 inputs the signal again. When the rotation angle of the microswitch R162 is detected, CPU 196 calculates an angle difference between the rotation angle of the microswitch R162 detected at the beginning and the rotation angle. As described above, there is a rotary shaft of the microswitch R162 turn sensor ring R66 on the rotation axis when bending the blade member plate 300. Thus, the calculated angular difference is equal to the rotation angle of the bent portion of the blade member plate 300. The angular difference can be calculated by allowed to pre-stored number of teeth of the number and the gear 164 of the second gear 108 to the RAM 194. The number of these teeth, as part of the control program, or as a separate data file from the control program, by reading from the flash memory 350 can be stored in the RAM 194.

If the angle difference is calculated, the servo motor 60 under the control of the control unit 98, generates a torque. Its torque is transmitted to the sensor ring R66 via the second gear 108. Thereby, the microswitch R162 is rotated again. However, the microswitch R162 is returned to the reference position by the rotation. Returning to the reference position, the protrusion 166 pushes the fan-shaped plate 156. Thus, the gear 154 so that the meshes again with the first gear 106. Figure 27 shows this situation.

With reference to FIGS. 28 to 31, will be described measurement procedures for springback when bending the blade member plate 300 to the left. Although not particularly described measurement procedure itself spring back when bent blade member plate 300 to the right, except that spring back is measured by the microswitch L152, it bent the blade member plate 300 to the left when it is similar to the procedure for measuring.

In step S200, CPU 196 of the bending machine 80 drives the feed roller not shown, predetermined length, thereby fed the blade member plate 300.

In step S202, CPU 196, compared servo motor 60, and outputs a control signal for generating the torque. Servomotor 60 generates torque in response to the control signal. Sensor ring R66 rotates the torque servo motor 60 has generated is transmitted. In this case, the sensor ring L64, although initially rotates, the gear 154 is not engaged with the first gear 106 will not rotate eventually.

In step S204, CPU 196, based on a signal microswitch R162 is input, the microswitch R162 determines whether it has detected the blade member plate 300. When it is determined that detects the blade member plate 300 (YES at step S204), the process proceeds to step S206. Otherwise (NO in step S204), the process proceeds to step S202.

In step S206, CPU 196, compared servo motor 60, and outputs a control signal for stopping the generation of the torque. Thus, rotation of the first gear 106 and second gear 108 is stopped.

In step S208, CPU 196, based on the rotation angle data rotation angle sensor 102 is inputted, it calculates a rotation angle of the microswitch R162. When the rotation angle of the microswitch R162 is calculated, CPU 196 stores the value in the RAM 194.

In step S210, CPU 196 causes the rotor of the motor main body 100 is a predetermined angle. Here, the "predetermined angle" is an angle that changes each time the process of step S210 is performed. Sensor ring R66 tries to rotate in response to rotation of the rotor. However, since the microswitch R162 is in contact with the blade member plate 300, sensor ring R66 does not rotate. Therefore, so that the upper rotary cylinder 110 of the spring joint 104 rotates relative to the lower rotary cylinder 118. Figure 29 shows the situation at this time. Microswitch 162, shown by a two-dot chain line indicates the position of the microswitch R162 which would have been reached if not in contact with the blade member plate 300.

In step S212, CPU 196 drives the cylinder rotating motor 93. Thus, the rotary cylinder 90 is rotated, the blade member plate 300 is bent. At this time, since the first spring 112 and second spring 116 of the spring joint 104 returns to the state not elastically deformed from the elastically deformed state, the microswitch R162 follows the blade member plate 300. However, the microswitch R162 to follow is limited to the range of "predetermined angle" in the step S210. Figure 30 shows the situation at this time.

In step S214, CPU 196, based on a signal microswitch R162 is input, the microswitch R162 determines whether no longer detects the blade member plate 300. When it is determined that no longer detect the blade member plate 300 (YES at step S214), the process proceeds to step S216. If not (NO at step S214), the process proceeds to step S212.

In step S216, CPU 196, based on the rotation angle data rotation angle sensor 102 is inputted, the microswitch R162 calculates the rotation angle of the microswitch R162 at the time that no longer detect the blade member plate 300. When the rotation angle is calculated, CPU 196 stores the rotation angle in RAM 194.

In step S218, CPU 196 drives the cylinder rotating motor 93. Driving direction is opposite in step S212. Thus, the rotary cylinder 90 is returned to the orientation at the time of step S200. Furthermore, microswitch R162 is to detect the blade member plate 300 again.

In step S220, CPU 196, compared servo motor 60, and outputs a control signal for generating the torque. However, this control signal, the direction in the step S210 is a signal for generating a torque in the opposite direction. At this time, since the rotary cylinder 90 is also away from the microswitch R162 also blade member plate 300, the blade member plate 300 follows the microswitch R162. Figure 31 shows this situation.

In step S222, CPU 196, based on a signal microswitch R162 is input, the microswitch R162 determines whether no longer detects the blade member plate 300. When it is determined that no longer detect the blade member plate 300 (YES at step S222), the process proceeds to step S224. If not (NO at step S222), the process proceeds to step S220.

In step S224, CPU 196, based on the rotation angle data rotation angle sensor 102 is inputted, the microswitch R162 calculates the rotation angle of the microswitch R162 at the time that no longer detect the blade member plate 300 at step S222. When the rotation angle is calculated, CPU 196 stores the rotation angle in RAM 194.

In step S226, CPU 196 calculates a difference between the rotation angle of the microswitch R162 in the rotation angle and step S216 of the microswitch R162 in the step S224. It shows the spring-back of the blade member plate 300 against the difference bending. CPU196 stores the difference to RAM 194.

In step S228, CPU 196 changes the "predetermined angle" at step S210. Provided, however, that "predetermined angle" is within the measurement range set in advance. When the "predetermined angle" is changed, the processes in and after step S200 are repeated.

Referring to FIG. 32, illustrating a control procedure for folding accurately blade member plate 300 based on spring back that is measured in advance.

In step S250, CPU 196 of the bending machine 80 drives the feed roller (not shown), thereby the blade member plate 300 fed predetermined length.

In step S252, CPU 196, compared servo motor 60, and outputs a control signal for generating the torque. Servomotor 60 generates torque in response to the control signal. Sensor ring L64 or sensor ring R66 rotates the torque servo motor 60 has generated is transmitted. In this case, one of the sensor ring L64 and sensor ring R66, although initially rotated, will not engage the first gear 106 or second gear 108 will not rotate eventually.

In step S254, CPU 196, based on a signal microswitch L152 signals and microswitch R162 inputted to the second external I / O184 is input to the third external I / O186, one of the sensor ring L64 and the sensor ring R66 It is equal to or detects the blade member plate 300. When it is determined that detects the blade member plate 300 (YES at step S254), the process proceeds to step S256. If not (NO at step S254), the process proceeds to step S252.

In step S256, CPU 196, compared servo motor 60, and outputs a control signal for stopping the generation of the torque. Thus, rotation of the first gear 106 and second gear 108 is stopped.

In step S258, CPU 196, based on the rotation angle data rotation angle sensor 102 is inputted, calculates a rotation angle of the sensor ring L64 or sensor ring R66. It calculates or either of the rotation angle is determined by the rotation direction of the motor main body 100. When the rotation angle is calculated, CPU 196 which stores the rotational angle RAM 194. The rotation angle indicates the starting point folding blade member plate 300.

In step S260, CPU 196, compared servo motor 60, and outputs a control signal for generating the torque. When this control signal is inputted, the rotor of the motor body 100 rotates so as to described below requirements are met. And its requirements, when the amount corresponding blade member plate 300 of the angle indicated by the sum of the specified angle and the spring back which is stored in association with the angle bent by the user via the touch panel 91, the contact plate a position in contact with the blade member plate 300, a requirement that microswitch L152 or microswitch R162 arrives. Sensor ring L64 or sensor ring R66 is torque servo motor 60 is generated to rotate the transmitted. However, since the microswitch L152 or microswitch R162 is in contact with the blade member plate 300, it does not rotate. Therefore, so that the upper rotary cylinder 110 of the spring joint 104 rotates relative to the lower rotary cylinder 118.

In step S262, CPU 196 drives the cylinder rotating motor 93. Thus, the rotary cylinder 90 is rotated, the blade member plate 300 is bent. At this time, since the first spring 112 and second spring 116 of the spring joint 104 returns to the state not elastically deformed from the elastically deformed state, microswitch L152 or microswitch R162 follows the blade member plate 300.

In step S264, CPU 196, based on the signal input is better to detect the blade member plate 300 at step S254 of the microswitch L152 or microswitch R162, whether it no longer detects the blade member plate 300 to decide. When it is determined that no longer detect the blade member plate 300 (YES at step S264), the process proceeds to step S266. If not (NO at step S264), the process proceeds to step S262.

In step S266, CPU 196 is such that the microswitch L152 and microswitch R162 is returned to the reference position, to drive the servo motor 60.

In step S268, the control unit 98, for performing the next bend, and updates the information.

As described above, the bending angle detecting device 50 according to this embodiment, automatically measuring the bending machine 80 is a spring back of the blade member plate 300 in when folded the blade member plate 300. Thus, it is not necessary to measure the spring back user of the bending machine 80 each time manually. Moreover, do not need to remove from the machine 80 bending it each time the blade member plate 300 is folded, it is also reduced measurement error.

This disclosed embodiments are illustrative in all respects. The scope of the present invention is not intended to be restricted based on the above-described embodiments, possible to make various design changes without departing from the scope of the present invention, as a matter of course.

For example, the spring joint 104 is not limited to the structure as described above. Instead of the spring joint 104 described above, transmits torque supplied motor body 100 of the servo motor 60 to the signal generating device, and elastically deformed by the torque, it may be used such as a leaf spring or a rubber tube. Instead of the spring joint 104, it may use other cushioning material. When using a buffer material, the cushioning material serves to transmit the torque supplied motor body 100 to the sensor ring L64 or sensor ring R66, as long as it is elastically deformed by the motor unit 100 supplies torque. Spring joint 104 may not.

Further, the rotation angle sensor 102 rather than indirectly measuring the rotation angle of the sensor ring L64 and the sensor ring R66, may be measured and their rotation angle directly. Specific measures to determine their rotation angle directly meshing spur gears to the gear 164 of the gear 154 and the sensor ring R66 of the sensor ring L64, is considered a method of connecting an angle sensor that axis.

Further, instead of the servo motor 60, and other driving device may drive the sensor ring L64 and the sensor ring R66. Mechanism for driving not also particularly limited.

Further, instead of the sensor ring L64 and sensor ring R66, also it provided a signal corresponding to whether or not in contact with the blade member plate 300 to the signal generating device is bending angle detecting device 50 which generates a different mechanism from those good. Examples of such signal generating device, is run microswitch straight, the rotation angle based on the position relationship between the rotational axis of the blade member plate 300 is bent and a position in contact with the blade member plate 300 there is an apparatus for calculating a.

Further, the bending angle detecting device 50 may comprise a control unit. In this case, the configuration of the control unit may be similar to control unit 98. Accordingly, the bending angle detecting device 50, the angle of the bent portion of the blade member plate 300 without depending on the control unit 98 of the bending machine 80 can be measured. Also, when measuring the spring-back, the control unit of the bending angle detecting device 50 may be in cooperation of the control unit 98 of the bending machine 80.

The program recording medium for the control unit 98 reads the control program is not limited to the flash memory 350. For example, it may be a USB memory. Additionally, you may receive control program via the Internet.

Claims (7)

  1. In folded plate by bending machine (80), a bending angle detecting device for detecting an angle of bent portions (50), detecting the angle in the state in which the plate is attached to the bending machine to, bending angle detection apparatus.
  2. The bending angle detecting device, the bending machine is the bending machine and the orientation of the plate before bending the plate to measure the orientation of the plate after bending the plate, according to claim 1 bending angle detection apparatus.
  3. The bending angle detecting device is in contact with the plate, measured with the bending machine is of the plate after the bending machine and the plate orientation before folding the plate is bent the plate orientation to bending angle detecting device according to claim 2.
  4. The bending angle detecting device,
    A signal generator (64, 66) for generating a signal corresponding to whether or not in contact with the plate,
    Connecting part for connecting rotatably the signal generating apparatus to the bending machine and (62, 70),
    Driving device for driving to rotate the signal generating unit (100),
    And a rotation angle detecting device (102) for detecting the rotation angle of the signal generating device,
    The connecting portion, so that the bending machine has a rotation axis of the plate when folding the plate and the axis of rotation of the signal generator coincide, connecting the signal generator to the bending machine, according to claim bending angle detecting device according to 3.
  5. The driving device includes a motor (100),
    The rotation angle detection device, by detecting the rotation angle of the rotor of the motor, a sensor (102) that indirectly detects the rotation angle of the signal generating device, the bending angle detection according to claim 4 apparatus.
  6. The driving device,
    A motor (100),
    Which is connected between the motor and said signal generating device, as well as transmitting the torque the motor is supplied to the signal generating device, and a buffer material for elastic deformation (112, 116) the motor by the torque supplied bending angle detecting device according to claim 4.
  7. The bending machine (80) a plate bending process bending the plate (300),
    Springback caused when bending the plate, by the bending machine bending angle detecting device connected (50), is measured in advance in a state where the plate is attached to the bending machine (S202 ~ S226 ), based on the measured result by correcting the bending angle of the plate when folding the plate (S260), based on the corrected the bending angle was folding the plate (S262), plate bending process.
PCT/JP2008/059207 2008-05-20 2008-05-20 Bending angle detection device and plate bending method WO2009141864A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2008/059207 WO2009141864A1 (en) 2008-05-20 2008-05-20 Bending angle detection device and plate bending method

Applications Claiming Priority (4)

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US12993185 US20110088441A1 (en) 2008-05-20 2008-05-20 Bending angle detection device and plate bending method
EP20080764367 EP2298463A1 (en) 2008-05-20 2008-05-20 Bending angle detection device and plate bending method
JP2010512871A JPWO2009141864A1 (en) 2008-05-20 2008-05-20 Bending angle detecting device, the plate bending method, and computer-readable program recording medium storing a control program
PCT/JP2008/059207 WO2009141864A1 (en) 2008-05-20 2008-05-20 Bending angle detection device and plate bending method

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06304685A (en) 1993-04-21 1994-11-01 Itami Kogyo Kk Device for working knife
JPH07266A (en) 1993-06-15 1995-01-06 Koei Shiyousan Kk Production of clothing cover and device therefor
JPH07116737A (en) * 1993-10-19 1995-05-09 Komatsu Ltd Instrument for measuring bending angle
JPH08215760A (en) * 1995-02-20 1996-08-27 Suehiro Mizukawa Movable die of belt-sheet bending device
JPH08215761A (en) 1995-02-20 1996-08-27 Suehiro Mizukawa Method for bending belt-sheet and device therefor
JP2001353528A (en) 2001-06-11 2001-12-25 Suehiro Mizukawa Method of bending plate material
JP2007114077A (en) * 2005-10-21 2007-05-10 Murata Mach Ltd Sheet material bent angle measuring instrument in press brake, and article angle measuring instrument

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1092345A (en) * 1977-02-01 1980-12-30 Renzo Malatto Device for measuring the bending angles in plate- bending machines

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06304685A (en) 1993-04-21 1994-11-01 Itami Kogyo Kk Device for working knife
JPH07266A (en) 1993-06-15 1995-01-06 Koei Shiyousan Kk Production of clothing cover and device therefor
JPH07116737A (en) * 1993-10-19 1995-05-09 Komatsu Ltd Instrument for measuring bending angle
JPH08215760A (en) * 1995-02-20 1996-08-27 Suehiro Mizukawa Movable die of belt-sheet bending device
JPH08215761A (en) 1995-02-20 1996-08-27 Suehiro Mizukawa Method for bending belt-sheet and device therefor
JP2001353528A (en) 2001-06-11 2001-12-25 Suehiro Mizukawa Method of bending plate material
JP2007114077A (en) * 2005-10-21 2007-05-10 Murata Mach Ltd Sheet material bent angle measuring instrument in press brake, and article angle measuring instrument

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EP2298463A1 (en) 2011-03-23 application
US20110088441A1 (en) 2011-04-21 application

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