JPS6336922A - Setting method for process of bending machine - Google Patents

Abstract

PURPOSE:To simplify a work shape input and bending process order input and to reduce errors by inputting an abutting point and bending point in order by the bending number in the order of bending stages for the work shape and making it a bending stage order input. CONSTITUTION:Numbers 0, 1, 2...5, 6 are numbered in order on each bending point from the end edge of one part in the work development shape in the case of obtained the final working shape by bending. And on each bending point the flange height, bending angle and bending length thereof are inputted. A blank or '0' or separate discrimination symbol is inputted on the input of the bending angle and bending length in order to discriminate that the work shape input is completed when reached to the final edge end, an end edge 6 in this case. With the completion of the input of the work shape the input of the succeeding process order is given. The input of the process order is corresponded with the process number in the order of the process and performed by using the bending point number shown in the input of the work shape on the abutting point and bending point for the back gage.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a process setting method for a folding machine.

(Prior Art) Conventionally, in a bending process setting method in a bending machine equipped with an NC device, an operator determines the bending order in advance, and the flange length, bending angle, and bending length are sequentially set according to the bending process order. I was inputting the length and then also inputting the extension.

However, this conventional process setting method places a heavy burden on the operator, especially when calculating the length of the 7 lunges, which requires inputting values that take into account the extension, which is prone to errors. .

(Problems to be Solved by the Invention) As described above, in the conventional process setting method for bending rocks, there is a problem in that a large burden is placed on the operator when inputting the process settings, and errors are likely to occur.

This invention has been made in view of such conventional problems, and involves numbering each bending point of a workpiece sequentially from the edge, and determining the flange height and bending angle based on the number of the bending point. In addition to inputting the bending length, when inputting the bending process, it is only necessary to input the number of the bending point that will be the stop point in the order of the bending process, and the number of the bending point that will be the bending point, reducing the burden on the operator. It is an object of the present invention to provide a process setting method for a folding machine that reduces errors.

[Structure of the invention]

(Means for solving the problem) The process setting method of the bending machine of the present invention is to sequentially number each bending point from one edge side in the developed shape of the workpiece, and to set the flange height for each bending point. Then, input the bending angle and bending length to input the workpiece shape, and input the abutting point and bending point in the order of the bending process using the bending point number to input the bending process order. It is characterized by this.

(Example) FIG. 1 shows a folding machine 1, and this folding rock 1 has an upper apron 3 and a lower apron 5. A bunch 7 is attached below the upper apron 3, and a die 9 is attached above the lower apron 5 with a plurality of bolts 11.
Fixed via. This is achieved by inserting the upper apron 3 or the lower apron 5 from, for example, the right side with the bolts 11 loosened, and then tightening the bolts 11 again at an appropriate position to fix the apron.

Front cover 17 with a tool stand 15 extending in the left-right direction
is provided on the front surface of the lower apron 5.

One mobile operation panel and a mobile foot control device 21 are
This command is used to raise and lower the lower apron 5. Further, necessary information can be input to the NC device using the operation panel 19.

A back gauge 25 is provided in the workpiece processing space 23 between the upper apron 3 and lower apron 5 of the bending machine 1, as shown in detail in FIG. The back gauge 25 includes a plurality of supports 27 protruding rearward near the left and right ends of the lower apron 5. The support body 27 is equipped with a lead screw 31 driven by an electric motor 29 and a linear motion guide 33 parallel to the lead screw 31.

A movable table 35 is provided above the lead screw 31 and the linear motion guide 33. This left and right movable platform 35
．． A beam 37 is horizontally extended between 35 and 35, and its height can be adjusted by a lifting drive device 39.

The back gauge 25 is attached to the beam 37 so that it can be positioned left and right. and back gauge 25
An abutting member 41 is provided on the front surface of. The height of this abutment member 41 is determined by the elevation drive device @3 of the beam 37.
9.

When bending a workpiece using the above-described bending machine, the workpiece is first inserted into the workpiece processing space 23 at the bending stage, and the tip of the workpiece is placed on the tip end surface of the abutment member 41 of the back gauge 25 that has been gauged. hit it against. Subsequently, the lower nibron 5 is driven with respect to the upper apron 3, and the workpiece is bent between the punch 7 and the die 9. Note that this series of operations is N([
This is done automatically depending on the location.

An example of a method for setting the folding process in such a folding machine will be described below.

FIG. 3 is a flowchart showing the flow of the bending process performed by the NC device of the bending thread 1, and shows the workpiece material, plate thickness, mold, information, etc. related to the embodiment of the present invention.
Following the input of the workpiece shape (step 101), the bending process order is input (step 102). Upon receiving these two inputs, the NC device automatically calculates the elongation, back gauge position, stroke position, abutment vertical position, pullback amount, bending speed, reversal method, takt time, etc. (step 103).

The input of the workpiece shape and the bending process order will be explained in more detail. When bending the final processed shape as shown in Fig. 4, first, in the developed workpiece shape, starting from one edge of the workpiece, numbers 0, 1.2, etc. are sequentially placed for each bending point. 5.6 will be added.

Then, as shown in Figure 5(a), for each bending point,
Input the flange height H1, bending angle A, and bending length B. Here, for the bending angle A, in the developed shape, for example, set a plus sign when the upper surface side of the workpiece to V is a valley fold, a minus sign when a mountain fold is made, or vice versa. I'll keep it. Furthermore, when the final edge, in this case edge 6, is reached, the bending angle A1 is used to identify that the input of the workpiece shape ends.
When inputting the bending length B, input a blank or 0, or input another identification symbol.

When the input of the workpiece shape is completed in this way, the input of the process order is then given as shown in FIG. 5(b). The process order is input by using the bending point numbers shown in the input of the workpiece shape to indicate the abutting points and bending points for the back gauge, in order to correspond to the process numbers in the order of the processes. Therefore, at the first bending point, the edge O hits the bank gauge and bending point 1 is bent. Subsequently, in the second bending, the bending point 1 where the bending has been completed is used as the abutment point, and the bending point 2 is bent. In this way, the abutment point and bending point are inputted in sequence for steps 3.4.5.

When inputting a bent shape with hemming, numbers are sequentially assigned to each bending point starting from one edge as shown in Figure 6, and as shown in Figures 7 (a) and (b). Create the workpiece shape input and bending process order input as follows. That is, for each bending point 1 to 4, the flange height H1 bending angle A1 bending length B is inputted. Then, for edge 5, enter only 7 lunge height], and for bending angle A and bending length B, enter 0, blank, or other identification symbol to indicate that workpiece shape input has been completed. be.

In this workpiece shape input, in order to identify the hemming part, the bending angle is set to A@O for bending point 1 and bending point 4, and if the upper surface side of the workpiece W is to be valley-folded, for example, plus or mountain folding is required. When the value is 0, the sign is decided as a minus and it is identified as +0 or -0. Note that the identification of hemming is not limited to the above-mentioned one, and the symbol is not particularly limited as long as it can identify the bending direction and hemming.

After inputting the workpiece shape, the bending process order is input. This is done by specifying the abutment point and bending point for each process number using the bending point number, in the same manner as in the first example.

Here, for the hemming portion, two steps are required: the workpiece W is once bent at an acute angle and then further crushed, as shown in FIG. Therefore, as shown in steps 1 and 2, (0, 1) indicates an acute bend, and (-0
, -1) can indicate the crushing process. Similarly, for bending process 4.5, hemming processing is specified by (5, 4), (-5, -4>.In addition, it is necessary to identify this hemming by a code as mentioned above. It is also possible to indicate hemming by using other appropriate identification symbols.

In this way, the material of the workpiece, the plate thickness, the mold, the workpiece shape, and the bending process order input are given to the NC device, and after being extended in the NC device and the backgauge position, stroke position, etc. are measured, the backgauge Drive shaft (L axis), die 9
Calculate the command value for the upper limit position (D axis) (step 10
4).

Subsequently, the display device displays the command value of each axis for each bending process, the reversal mark, the shape before bending, and the shape after bending, as shown in FIGS. 9 and 10. Note that this display can be displayed one by one for each process, or can be displayed all at once in the order of the processes (step 105).

Here, the reversal mark will be explained. In the case of step 2 in FIG. 9, it indicates that after the bending process in step 1 is completed, the workpiece W is turned over and bent at bending point 2.

Further, the reversal mark in step 4 indicates that the workpiece is horizontally rotated by 180 degrees after the bending process at bending point 3 is completed. Further, the reversal mark in step 4 in FIG. 10 indicates that after the bending process at bending point 2 is completed in step 3, the workpiece W is turned upside down and horizontally rotated by 180 degrees.

Each of these inversions is automatically calculated by the NC device from the workpiece shape input and the process order input.

After the display in step 105 above, the operator operates!
The actual bending process is started by performing the bending operation using the foot bevel fitting 19 or the foot bevel fitting 21. When the bending work at each bending point is completed, the back gauge 25 automatically performs gauging according to a command from the NG device, automatically sets the front and rear positions of the abutting member 41, and the vertical position, and also sets the lower apron 5. The upper limit position is also automatically set.

In addition, when a fully automatic bending process is performed using a workpiece handling device, all of the above series of bending processes can be performed automatically.A6 On the other hand, when the workpiece W is handled by an operator, After the bending process in each bending process is completed, the information necessary for the next bending process is displayed on the display device, and the operator can perform the next bending process while looking at the display. You will have to decide whether it is appropriate and perform the necessary operations.

This invention is not limited to the above embodiments, and various modifications can be made within the scope of the technical idea described in the claims.

[Effects of the Invention] Since the present invention has the above-described configuration, inputting the workpiece shape and bending process order can be simplified, reducing the burden on the operator and reducing errors.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a folding machine used in an embodiment of the invention, Fig. 2 is a perspective view of a back gauge device used in the above-mentioned folding machine, and Fig. 3 is a perspective view of an embodiment of the invention. FIG. 4 is a cross-sectional view showing the shape of the product obtained in the above embodiment; FIG. FIG. 6 is a cross-sectional view of a product having a hemmed portion obtained by the above-mentioned example, and FIG. 7 is an output side view showing workpiece shape input data and bending process order input data required to obtain the above-mentioned product. FIG. 8 is an explanatory diagram for explaining the hemming process in the above embodiment, FIG. 9 is an explanatory diagram for explaining the bending process order to obtain the product shown in FIG. 4, and FIG. FIG. 3 is an explanatory diagram illustrating the order of bending steps until the product shown in the figure is obtained. 1...Bending machine 3...Upper apron 5...Lower apron 7...Punch 9...Die 25...Back gauge 41...Abutting member W...Work agent Patent attorney Yasuo Miyoshi Figure 3 Figure 4 F-valve 1 Height H Bending angle A Bending length B5 2
8. 3 135 12506
11.8 Figure 5 (a) Process No. Abutting point Bending center, I
Q1 Figure 5 (b
) Fig. 6 Flex height H Bending angle A Bending length B Fig. 7 (a
) Process No., Ending point Bending, Torture, I
Q12
-Q ,,-1 Fig. 7(b) Fig. 8 Fig. 9 Fig. 1θ

Claims (2)

[Claims] (1) In the developed shape of the workpiece, sequentially number each bending point from one edge side, and set the flange height and
The bending angle and bending length are input to input the shape of the workpiece, and for the workpiece shape, the abutment point and bending point are inputted sequentially in the order of the bending process using the bending point number to input the bending process order. Features: Process setting method for the bending machine. (2) Regarding the hemming bending point, an identification symbol is input into the bending angle input.
The process setting method for the bending machine described in section.