JP3908103B2 - Bending machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is intended to improve workability and improve machining accuracy by always displaying information necessary for machining on the front of the bending apparatus, particularly wherever the worker is located. The present invention relates to a bending apparatus designed to be used.
[0002]
[Prior art]
Conventionally, a bending apparatus, such as a press brake (FIG. 9), has a punch P mounted on an upper table 50 and a die D mounted on a lower table 51. For example, an operator moves to a predetermined processing station. While either table is moved up and down, the workpiece is bent by the cooperation of the punch P and the die D.
[0003]
In this case, the operator positions the work and performs bending while viewing the NC information displayed on the screen of the operation panel 52 suspended from the upper table 50.
[0004]
[Problems to be solved by the invention]
[0005]
However, as described above, in step bend processing in which an operator moves while moving to a predetermined processing station, the screen may be difficult for the operator to see when the position of the processing station is opposite to the operation panel 52. .
[0006]
For this reason, if the operation panel 52 is arranged in front, it is generally easier for the operator to see the screen.
[0007]
However, in this case, the workpiece being machined and the operation panel 52 may interfere with each other, which may hinder machining.
[0008]
In addition, it is conceivable to arrange the operation panel 52 in the lateral direction, for example, on the side of the upper table 50 from the position shown in the figure, but in that case, the worker must always work sideways. However, the screen may be very difficult to see depending on the angle.
[0009]
On the other hand, if the large display screen 53 is embedded in the upper table 50 (for example, Japanese Patent No. 2828151), the interference with the workpiece described above is avoided, but the large display screen 53 is fixed, and thus similarly. Depending on the position of the processing station, it may be difficult for the operator to see the screen.
[0010]
As a result, workability is deteriorated, the workpiece cannot be accurately positioned, and there is a problem that the processing accuracy is lowered, for example, an error occurs in the flange dimension of the product.
[0011]
An object of the present invention is to improve workability and improve machining accuracy by always displaying information necessary for machining in front of the worker, regardless of the processing station where the worker is present. It is in.
[0012]
[Means for Solving the Problems]
In order to solve the above problems, the present invention, as shown in FIGS.
A moving mechanism provided in the longitudinal direction of the upper table 1;
Disposed in front of the upper table 1 attached to the moving mechanism, by the moving mechanism to move to a predetermined processing station A1, A 2 · · · An, said predetermined machining stations A1, A 2 ··· An A bending device characterized by having projection means 18 for projecting processing support information J required for processing at a predetermined position on the upper table 1 corresponding to
A bending apparatus having the projection means 18,
Information calculation means 30C for calculating the bending order, dies P, D, processing stations A1, A2,... An based on product information;
Machining support information generating means 30D for generating machining support information J necessary for machining based on the calculation result;
Move the projection means 18 on the processing station A1, A2 · · · An, which is the operation, the processing support information generated at a predetermined position on the upper table 1 corresponding to a predetermined said work station A1, A 2 ··· An A technical means called a bending apparatus is provided, which comprises projection control means 30E for projecting the machining support information J generated by the means 30D.
[0013]
Therefore, according to the configuration of the present invention, the projection means 18 is constituted by a projector, and the projector 18 can be positioned along the longitudinal direction of the upper table 1, whereby each processing station A1, A2,. Since the worker S who has moved to An can clearly see the processing support information J displayed at a predetermined position on the upper table 1 in front of his eyes (FIG. 7), the workability is improved. Since the workpiece W can be accurately positioned based on the machining support information J, there is no error in the flange dimension, and the machining accuracy is improved.
[0014]
As a result, according to the present invention, regardless of the processing station where the worker is present, information necessary for processing is always displayed on the front of the worker, thereby improving workability and improving processing accuracy. Can be achieved.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described with reference to the accompanying drawings by embodiments.
FIG. 1 is an overall view showing an embodiment of the present invention.
[0016]
In FIG. 1, the bending apparatus shown in the figure is, for example, a press brake. The press brake is mounted on the upper table 1 via an intermediate plate 32 and is mounted on the lower table 2 via a die holder 33. For example, in the case of a descending type, the upper table 1 is moved up and down by hydraulic cylinders 5 and 6 attached to the side plates 7 and 8.
[0017]
For example, if the hydraulic cylinders 5 and 6 are driven by the bending control means 30F of the lower NC device 30 described later, the punch P is lowered, and the workpiece W positioned in contact with the abutments 3 and 4 is positioned. A predetermined bending process is performed by the punch P and the die D.
[0018]
Projection means 18 is disposed in front of the upper table 1, and the projection means 18 is constituted by a projector, for example.
[0019]
The projector 18 projects the processing support information J necessary for processing using the upper table 1 as a screen, and is mounted so as to be positioned along the longitudinal direction (X-axis direction) of the upper table 1.
[0020]
That is, brackets 21 and 22 are attached to both side surfaces (FIG. 2) of the upper table 1, and both ends of a ball screw 19 driven by an X-axis motor Mx are rotatably attached to both brackets 21 and 22. The projector 18 is screwed into the ball screw 19.
[0021]
Further, both ends of a guide 20 extending in the longitudinal direction are mounted on the brackets 21 and 22 and below the ball screw 19, and the projector 18 is slidably coupled to the guide 20.
[0022]
Further, the projector 18 is inclined at a predetermined angle as shown in the figure.
[0023]
With this configuration, when the X-axis motor Mx is driven (FIG. 2) by the projection control means 30E of the subordinate NC device 30 (FIG. 1), the ball screw 19 is rotated to be screwed into the ball screw 19. The projector 18 is moved in the longitudinal direction along the guide 20 and can be moved to predetermined processing stations A1, A2,... An (YES in steps 105 and 106 in FIG. 8).
[0024]
Accordingly, if the projector 18 is moved to the predetermined processing stations A1, A2,... An, and then the focal position of the condensing lens is adjusted by the projection control means 30E, the processing support information J Can be projected at a predetermined position corresponding to predetermined processing stations A1, A 2 ... An on the ram 1 as the upper table 1 (step 107 in FIG. 8).
[0025]
In this case, as described above, also in the descending press brake shown in the present embodiment, the projector 18 is attached to the upper table 1 that is a ram, so that the relative position between the ram 1 and the projector 18 is unchanged. And the focus of the projected image is not crazy.
[0026]
FIG. 3 is a diagram showing a second embodiment of the projector 18, and the projector 18 is suspended from a suspension member 9 via a pivot shaft 27, and the pivot shaft 27 is coupled to the motor M. By driving the motor M, the tilt angle of the projector 18 can be adjusted.
[0027]
The suspension member 9 is attached to the distal end of an L-shaped member 26, and the base end of the L-shaped member 26 is attached to a slider 25, and the slider 25 is laid on the top of the upper table 1 and is elongated. Slidingly coupled to a rail 23 extending in the direction.
[0028]
A rack 24 is provided on the front surface of the rail 23, and the rack 24 meshes with a pinion (not shown) of an X-axis motor Mx ′ attached to the slider 25.
[0029]
With this configuration, when the X-axis motor Mx ′ of the slider 25 is driven and controlled by the projection control means 30E of the subordinate NC device 30 (FIG. 1), the projector 18 moves in the longitudinal direction via the slider 25, and a predetermined It can be moved to the processing stations A1, A2,... An (YES in step 105 and step 106 in FIG. 8).
[0030]
Therefore, similarly, if the projector 18 is moved to the predetermined processing stations A1, A2,... An, and then the focal position of the condenser lens is adjusted by the projection control means 30E, the projector 18 can process the projector. The support information J can be projected on a predetermined position on the ram 1 corresponding to the predetermined processing stations A1, A 2 ... An (step 107 in FIG. 8).
[0031]
As a result, according to the present invention, regardless of the processing station where the worker is present, information necessary for processing is always displayed on the front of the worker, thereby improving workability and improving processing accuracy. Can be achieved.
[0032]
In this case, the machining support information J is information generated by a machining support information generating unit 30D (FIG. 1) described later and is information necessary for machining. For example, as shown in FIG. There is a method of abutting the workpiece W against the abutments 3 and 4, a display of a bending line m, and the like.
[0033]
That is, when product information such as CAD information is input from the host NC device 31 via the input / output means 30B described later (FIG. 1) (step 101 in FIG. 8), the information calculation means 30C causes the bending order, the mold P, D, mold layout, etc. are calculated (step 102 in FIG. 8), and these calculation results are input to the processing support information generating means 30D, and processing support information J as shown in FIG. 6 is generated. (Step 103 in FIG. 8).
[0034]
When the processing is started (step 104 in FIG. 8), the projector 18 is moved to predetermined processing stations A1, A2,... An by the projection control means 30E (step 105 in FIG. 8). if the movement is completed (YES in step 106 in FIG. 8), by the projector 18, predetermined for the machining support information J is corresponding to the predetermined work station A1, a 2 ··· An on ram 1 Projected to the position (step 107 in FIG. 8).
[0035]
In this case, as the processing support information J, in addition to the information shown in FIG. 6, the bending order (FIG. 5A), the dies P and D for each bending order, the die layout, in other words, the processing station A1. , A2... An (FIG. 5B) may be included.
[0036]
For example, the processing support information J projected at a predetermined position on the ram 1 (FIG. 7) is composed of fixed information J1 and variable information J2.
[0037]
Among these, the fixed information J1 covers the bending orders 1 to n and the dies P and D and the processing stations A1, A2... An for each bending order, as shown in the figure. It does not change even if it moves to any processing station A1, A2 ... An.
[0038]
In this case, * indicating the current position is displayed beside the processing stations A1, A2... An in the fixed information J1, and if this * is viewed, the current processing station position (the processing station in the illustrated example) is displayed. A2) can be understood.
[0039]
On the other hand, the content of the variable information J2 changes for each bending order. For example, in the bending order 2 as shown in the figure, the way of abutting the workpiece W against the abutments 3 and 4 in the bending order 2 only. The bend line m at that time is displayed.
[0040]
Accordingly, when the operator S moves to the processing station A2, for example, if the processing support information J projected at a predetermined position on the ram 1 is viewed, the bending information corresponding to the processing station A2 is obtained from the fixed information J1. It can be seen that processing in order 2 is performed, and from the variable information J2, it is possible to know how to abut the workpiece W against the abutments 3 and 4 in the bending order 2 and the bending line m at that time.
[0041]
On the other hand, a back gauge having abutments 3 and 4 is provided behind the lower table 2 (FIG. 5B), and the abutments 3 and 4 are arranged on the stretch 34 as is well known. The stretch 34 can be moved in the longitudinal direction (X-axis direction) by an X-axis motor (not shown), and the stretch 34 is moved back and forth (Y-axis direction) by a Y-axis motor (not shown) and a Z-axis motor (not shown). It can move in the vertical direction (Z-axis direction).
[0042]
With this configuration, the abutments 3 and 4 are moved to a predetermined processing station (step 108 in FIG. 8) under the control of the bending control means 30F (FIG. 1) when processing is started (step 104 in FIG. 8). When the movement is completed (YES in step 109), the operator S follows the processing support information J projected at the predetermined position on the ram 1 described above (FIG. 7), and the rush that has moved to the processing station. The work W is abutted and positioned with respect to 3 and 4 (step 110 in FIG. 8).
[0043]
That is, at the same time that the projector 18 (FIG. 4) moves to a predetermined processing station, the abutments 3 and 4 also move to the same processing station (YES in step 105 → 106 in FIG. 8, YES in step 108 → step 109). ), The worker S who has moved to the same processing station positions the workpiece W against the abutments 3 and 4 according to the processing support information J as described above.
[0044]
As the control device for the press brake having the above-described configuration, there are the above-described lower NC device 30 (FIG. 1) and the upper NC device 31.
[0045]
Among these, the host NC device 31 incorporates product information, for example, CAD information. The CAD information includes information such as the thickness of the workpiece W, the material, the length of the bending line, the bending angle of the product, and the flange dimension. These are configured as a three-dimensional view and a development view.
[0046]
CAD information composed of these pieces of information is input to the lower NC device 30 (step 101 in FIG. 8), and then a predetermined operation according to the present invention is performed (steps 102 to 111 in FIG. 8).
[0047]
The subordinate NC device 30 (FIG. 1) includes a CPU 30A, an input / output means 30B, an information calculation means 30C, a processing support information generation means 30D, a projection control means 30E, and a bending control means 30F.
[0048]
The CPU 30A performs overall control of the entire apparatus shown in FIG. 1, such as the information calculation means 30C, the processing support information generation means 30D, and the projection control means 30E, according to the operation procedure of the present invention (corresponding to FIG. 8).
[0049]
The input / output means 30B is provided, for example, in the vicinity of the upper table 1 that constitutes a press brake (FIG. 1), and includes a screen such as a keyboard and a liquid crystal.
[0050]
This input / output means 30B is automatically input by inputting CAD information manually while the operator S operates the keyboard and watching the screen, or by connecting the lower NC device 30 to the upper NC device 31 by wire or wirelessly. CAD information can be entered.
[0051]
The information calculation means 30C calculates, for example, the bending order, the mold, the mold layout, etc. based on the CAD information input from the host NC apparatus 31 via the input / output means 30B (step 102 in FIG. 8). These calculation results are input to the machining support information generating unit 30D, the projection control unit 30E, and the bending control unit 30F, respectively.
[0052]
The processing support information generation unit 30D generates the processing support information J described above based on the calculation result by the information calculation unit 30C, and the processing support information J is sent to the projector 18 described above.
[0053]
In this case, how the processing support information J projected at a predetermined position on the ram 1 by the projector 18 can be configured in advance by the operator S before processing, for example, as shown in FIG. Thus, you may comprise by fixed information J1 and variable information J2.
[0054]
The projection control unit 30E controls the movement of the projector 18 (FIG. 4) described above based on the calculation result of the information calculation unit 30C (YES in steps 105 and 106 in FIG. 8). The projection operation such as the projection range is controlled so that the processing support information J is projected at a predetermined position on the ram 1 (step 107 in FIG. 8).
[0055]
The bending control means 30F (FIG. 1) moves the abutments 3 and 4 to the processing stations A1, A2... An of each process based on the calculation result by the information calculation means 30C (step 108 in FIG. 8). YES at step 109).
[0056]
Further, the bending control means 30F (FIG. 1) is positioned after the worker S abuts the workpiece W against the abutments 3 and 4 according to the processing support information J projected at a predetermined position on the ram 1 (FIG. 8). Step 110), when the operator S depresses the foot pedal 27 (FIG. 1), this is detected and the hydraulic cylinders 5 and 6 are actuated to lower the ram 1 to perform bending (FIG. 8). Step 111).
[0057]
The operation of the present invention having the above configuration will be described below with reference to FIG.
[0058]
(1) Operation until the start of machining.
[0059]
In step 101 of FIG. 8, CAD information is input from the host NC device 31, a bending order is calculated in step 102, and processing support information J is generated in step 103.
[0060]
That is, when CAD information is input from the upper NC device 31 (FIG. 1) to the lower NC device 30 via the input / output means 30B, the information calculation means 30C constituting the lower NC device 30 causes the bending order, L A value and the like are calculated, and data from the information calculation means 30C is transmitted to the processing support information generation means 30D, the projection control means 30E, and the bending control means 30F.
[0061]
Of these, the machining support information generating unit 30D generates the machining support information J described above (FIG. 7) based on the calculation result of the information calculating unit 30C, and sends the machining support information J to the projector 18.
[0062]
(2) Operation after starting machining.
[0063]
Then, in step 104 of FIG. 8, the machining is started. In step 105, the projector 18 is moved to predetermined processing stations A1, A2,... An, and when the movement is completed in step 106 (YES). In step 107, the processing support information J is projected at a predetermined position on the ram 1, and the process proceeds to the next step 110.
[0064]
At the same time, at step 108, the abutments 3 and 4 are moved to predetermined processing stations A1, A2... An, and when the movement is completed at step 109, the process proceeds to the next step 110.
[0065]
That is, when the operator S presses a start button or the like, the CPU 30A that detects it (FIG. 1) determines that the processing has started, instructs the projection control means 30E and the bending control means 30F, and the information calculation means 30C. Based on the data calculated by the above, the projector 18 and the bumps 3 and 4 are simultaneously driven and controlled.
[0066]
As a result, the projector 18 and the bumps 3 and 4 (FIG. 4) simultaneously move to the same processing station, and the projector 18 rams the processing support information J sent from the processing support information generating means 30D (FIG. 1). Projected to a predetermined position on 1.
[0067]
At this time, since the worker S (FIG. 4) has already moved to the same processing station, he / she hits the workpiece W in accordance with the processing support information J projected at a predetermined position on the ram 1. 4 (step 110 in FIG. 8), and then, when the operator S steps on the foot pedal 27 (FIG. 1), the CPU 30A that has detected it presses the hydraulic cylinder via the bending control means 30F. By operating 5 and 6 and lowering the ram 1, the workpiece W abutted against the abutments 3 and 4 is bent (step 111 in FIG. 8).
[0068]
【The invention's effect】
As described above, according to the present invention, regardless of the processing station where the worker is present, information necessary for processing is always displayed on the front of the worker, thereby improving workability and improving processing accuracy. The effect was to improve.
[0069]
[Brief description of the drawings]
FIG. 1 is an overall view showing an embodiment of the present invention.
FIG. 2 is a diagram showing a first embodiment of a projection means 18 constituting the present invention.
FIG. 3 is a diagram showing a second embodiment of the projection means 18 constituting the present invention.
FIG. 4 is a diagram showing the relationship among the projection means 18, the abutments 3, 4 and the worker S that constitute the present invention.
FIG. 5 is a diagram showing a relationship between a bending order, a mold, and a processing station according to the present invention.
FIG. 6 is an explanatory diagram of processing support information J according to the present invention.
FIG. 7 is a diagram showing an example of processing support information J according to the present invention.
FIG. 8 is a flowchart for explaining an operation according to the present invention.
FIG. 9 is an explanatory diagram of a prior art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Upper table 2 Lower table 3, 4 Abutting 5, 6 Hydraulic cylinder 7, 8 Side plate 9 Hanging member 18 Projection means 19 Ball screw 20 Guide 21, 22 Bracket 23 Rail 24 Rack 25 Slider 26 L-shaped member 27 Foot pedal 30 Subordinate NC device 30A CPU
30B Input / output means 30C Information calculation means 30D Processing support information generation means 30E Projection control means 30F Bending control means 31 Host NC device 32 Intermediate plate 33 Die holder 34 Stretch D Die J Processing support information P Punch W Workpiece

Claims (2)

A moving mechanism provided in the longitudinal direction of the upper table;
Attached to the moving mechanism and arranged in front of the upper table, moved to a predetermined processing station by the moving mechanism, and provided with a processing support necessary for processing at a predetermined position on the upper table corresponding to the predetermined processing station. A bending apparatus having a projection means for projecting information. A bending apparatus having the projection means according to claim 1,
Information calculation means for calculating the bending order, mold, processing station, etc. based on product information;
Machining support information generating means for generating machining support information necessary for machining based on the calculation result;
A projection control unit configured to move the projection unit to the calculated processing station and project the processing support information generated by the processing support information generation unit at a predetermined position on the upper table corresponding to the predetermined processing station ; Bending device characterized.

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