JPH09327729A - Method and device for working of sheet metal product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve productivity of a sheet metal product by recording information of succeeding process to a sheet cut from a sheet stock so as to prevent working mistake of succeeding process at low cost and without lowering a working rate of cutting device. SOLUTION: The device is arranged with a cutting device 3 NC controlled to cut a sheet from a sheet stock, a display device 4 to display a shape of cut sheet and a XY plotter 5 to write the succeeding working data for a sheet displayed in the display device 4. Data of shape and dimension of many kind sheet metal products, data for position and mode of succeeding process for a cut sheet and identification code for the product are registered in a computer to control the cutting device. When working instruction of a sheet metal product is given, cutting of the sheet is executed and then the succeeding working data for a cut sheet is recorded on the sheet by the XY plotter 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for processing a sheet metal product using a turret punch press or the like.
The present invention relates to a technical means capable of improving the productivity of a wide variety of small-quantity sheet metal products by recording post-process information on the cut plate material.

[0002]

2. Description of the Related Art Sheet metal products include a cutting process for cutting a plate material from a material sheet according to a development view of the product, a forming process for bending or drawing the cut plate material, and a joining process for joining the abutted plate materials. It is manufactured through processes. When a large number of products with a fixed shape are produced in large quantities, the cutting process and the forming process are performed continuously using a transfer press or the like, but many different shapes or dimensions such as the case of the control panel of a machine are used. In the case of small-volume production of various types, it is usual that the above-mentioned steps are individually performed by independent machines.

Regarding the cutting step among the above steps, a technique has been established in which a computer is used to calculate how to arrange plate materials of various shapes and dimensions on a material sheet to minimize the remaining material. , N based on the calculation result
We have also established a technology that automatically cuts plate materials with a C-controlled press machine. However, it is difficult to handle the plate material and position the processing position in the forming process and the joining process, which are post-processing processes.Therefore, in the case of high-mix low-volume production, the individual processing is performed manually. It's a reality.

[0004]

When manually bending or welding individual products, the operator collates the drawing with the material to determine what kind of processing is to be performed at which position. It is necessary to process it. In the joining process such as welding, the plate material is formed into the final product shape in the forming process which is the previous process, and the joining position is abutted or abutted so as to be suitable for that process, so there is a processing error. Is relatively rare.

However, in the forming process such as bending, the shape of the plate material in which the product is developed and the shape of the final product are not always clear at first glance, and in order to form the shape of the final product, In many cases, it may not be clear at first glance what kind of processing should be applied to the part.
In such a case, it is necessary for the operator to compare and compare the shape of the plate material with the product shape shown in the drawing and surely perform processing at the position specified in the drawing. Also, because the shape of the final product cannot be fully recognized, processing errors occur.

As a conventional means for preventing such processing mistakes, a method is used in which plate cutting is performed by a laser cutting machine, and the position of the broken line during bending is recorded on the plate material by weakening the laser output. Alternatively, when performing plate cutting with a turret punch press, a method is used in which the position of a broken line in bending is indicated by two small punch holes. When such a method is adopted, during bending,
Since it suffices for the operator to perform the bending process at the position of the broken line indicated by the laser beam or the punch hole, the occurrence of processing errors can be greatly reduced. Further, if a laser processing machine is used, it is possible to record information other than the broken line position such as a product identification code on the plate material when the plate is removed.

However, the laser processing machine is expensive and requires equipment cost. On the other hand, the method of indicating the broken line position by the punch hole is inexpensive as an apparatus, but it is not sufficient as information because it cannot indicate in which direction the bending is to be performed or at what degree of curvature.

Further, in the conventional method as described above, the work time of the machine used for the cutting work is devoted to display the broken line position and the like, so that the cutting work efficiency is naturally lowered and the expensive machine is operated. This leads to a decrease in productivity due to the decrease in the rate.

The present invention has been made in order to solve the problems of the above-mentioned conventional means, and is a post-processing for a cut plate material at low cost and without substantially lowering the operating rate of the cutting device. The objective is to obtain a technical means that can prevent mistakes.

[0010]

A method for processing a sheet metal product according to the present invention comprises: shape and dimension data of sheet materials of various kinds of sheet metal products; position and mode data of post-processing with respect to the cut sheet material; When the processing command for a certain sheet metal product is given, the plate material is cut by the NC control cutting device 3 based on the shape and dimension data of the plate material of the product, The post-processing data for the cut plate material is described on the plate material by the XY plotter 5.

The sheet metal product processing apparatus according to the present invention is also provided with a computer 1 having a storage means 6 for storing the shape and dimension data of the plate materials of a large number of sheet metal products, the post-processing position and mode data, and the identification code of the product. An NC device 2 and a cutting device 3 for receiving the shape and dimension data of the plate material from the computer and cutting the plate material from the material sheet; a display device 4 for displaying the shape of the cut plate material; and a display device 4. The XY plotter 5 records the post-processing data for the displayed plate material.

[0012]

The XY plotter is controlled by the computer in which the processing information of the sheet metal product is registered, and the processing information of the post-processing is described in the sheet material cut by this, so that in the processing of the sheet metal product of a large variety of small quantity production. It is possible to prevent an error in the post-processing of the plate material at a low cost and without substantially reducing the operating rate of the cutting device.

Further, in the processing apparatus of the present invention, the XY plotter and the display device are connected by a computer as a means for recording the processing information of the post-processing, and the display device displays the shape of the cut plate material. The operator can place the plate material immediately after being cut on the platen of the XY plotter by referring to the display on the display device, and there is no fear of placing the plate material wrongly, and the post-processing information Can be displayed at the exact position of the plate material.

[0014]

1 is a block diagram showing an embodiment of a plate material processing apparatus of the present invention. The device of the present invention
The computer 1 is provided. Computer 1 has N
A cutting device 3 such as a turret punch press is connected via the C device 2. Further, a display device 4 and an XY plotter 5 are connected to the computer 1.

The computer 1 is provided with a product data storage means 6 which stores data of individual sheet metal products.
The product data stored in the product data storage means may be a product identification code, the shape and size of a plate material that is a developed shape of the product, a molding processing position such as bending for the plate material and a processing mode thereof, for example, a polygonal line. For example, it is data of a mountain fold and a valley fold, a bending angle, a curvature radius of a bending portion, and the like, which can be stored in the storage means 6 by connecting the computer 1 to a CAD system.

The computer 1 includes a machining command data storage means 7. The stored processing command data includes a product identification code, the number of processed products, a delivery date, and the like, which are input to the computer 1 from the keyboard 8. Further, a plate-cutting calculation program 9 is registered in the computer 1, and the shape and size data of the plate material of the product to be processed based on the processing command data is retrieved from the product data storage means to determine how the plate is to be printed on the material sheet. It is calculated whether or not the material is arranged and the plate material is cut out, and a machining command is given to the NC device based on the calculation result. The cutting device 3 processes the material sheet based on a command from the NC device 2 and sequentially cuts necessary plate materials. From the NC device 2, a cutting completion signal is sent to the computer 1 every time cutting of one plate material is completed.

When the cutting completion signal for one plate material is received from the NC device, the computer 1 sends the shape data of the cut plate material to the display device 4, and the molding processing data of the plate material is sent to the XY plotter 5. Send to. The display device 4 displays the shape of the plate material cut immediately before on the screen based on the sent data. A reference line in the XY directions is simultaneously displayed on this screen to indicate which side is the processing reference line for the plate material. The operator refers to the display on the display device to place the plate material immediately after being cut on the platen of the XY plotter, and operates the XY plotter. The molding processing data for the plate material is sent to the XY plotter 5.
Is the identification code of the product on the board material based on the data,
Enter the position of the polygonal line and its processing mode (Fig. 3).

In each plate material cut by the cutting device 3 in this manner, the post-processing position and its processing mode are recorded, and the product identification code is also recorded. When the processing is performed in the mode recorded at the processing position recorded on the plate material, the product can be surely processed, and a processing error can be avoided. Further, since the identification code of the product is written on each plate material, it is possible to quickly grasp the relationship between the plate material and the shape of the final product by referring to the drawing of the product.

In the above description, only the data of the forming process is mentioned as the data of the post-process, but if it is a product to be further joined, for example, the welding position of spot welding should be displayed on the plate material. It is also possible to adopt an embodiment in which the data of the forming process and the data of the joining process are recorded on the plate material at the same time.

[0020]

As described above, according to the present invention, it becomes possible to quickly and surely perform a forming process such as a bending process on a cut plate material, and an XY plotter which describes processing information of a post process on the plate material, It is much cheaper than a cutting device and the equipment costs incurred by adopting the invention are very low. On the other hand, according to the present invention, since the cutting device can continuously perform the original cutting work, and the XY plotter writes post-processing data for the plate material cut earlier during the cutting of the next product, There is no reduction in the operating rate of the cutting device.

[Brief description of drawings]

FIG. 1 is a block diagram of the device of the present invention.

FIG. 2 is an explanatory diagram showing a display screen of a display.

FIG. 3 is an explanatory diagram showing an example of recording of post-processing on a plate material.

[Explanation of Codes] 1 Computer 2 NC Device 3 Cutting Device 4 Display Device 5 XY Plotter 6 Product Data Storage Means

Claims (2)

[Claims] 1. A computer for calculating the shape and dimension data of plate materials of various kinds of sheet metal products, the position and mode data of post-processing for the cut plate materials, and the identification code of the products.
When a sheet metal product processing command is registered in (1), the plate material is cut by the NC control cutting device (3) based on the shape and dimension data of the plate material of the product and cut. A method for processing a sheet metal product, characterized in that post-processing data for the plate material is written on the plate material by an XY plotter (5). 2. A computer (1) comprising a storage means (6) for storing the shape and dimension data of sheet materials of a large number of sheet metal products, post-processing position and mode data, and identification codes of the products.
An NC device (2) and a cutting device (3) for cutting the plate material from the material sheet by receiving the shape and dimension data of the plate material from a computer, and a display device (4) for displaying the shape of the cut plate material. An apparatus for processing a sheet metal product, comprising: and an XY plotter (5) which describes post-processing data for the plate material displayed on the display device (4).