JPH0215828A - Schedule data generating method for bending machine - Google Patents

Abstract

PURPOSE:To improve the operation efficiency by studying a mechanical characteristic with respect to bending data of a product, selecting automatically a machine candidate, studying a machine and a job site state such as a die operating state, etc., setting automatically an optimum machine, and generating schedule data with regard to this machine. CONSTITUTION:A bending machine 1 fixes a die 5 onto a die holder 3, installs a punch 9 into a punch installing part 7 and brings a plate material which has been pressed against a back gage 11 from the right, to folding. At the time of generating schedule data, bending data is inputted, die information is retrieved, and mechanical characteristic data is referred to. Subsequently, by deciding capacity tonnage, a ram stroke, bending length, length measuring capacity of the back gage 11, bumping height, propriety of bumping of the right and left of the back gage 1, forward and backward moving amounts, etc., a conforming machine is selected as a machine candidate. Also, by studying a state of a job site, an optimum machine is set and the schedule data is generated efficiently. In such a way, the schedule data can be generated automatically and efficiently, and the operation efficiency of the whole line can be improved.

Description

[Detailed Description of the Invention] [Objective of the Invention 1 (Field of Industrial Application) The present invention provides a method for creating schedule data for bending machines, especially for automatically setting bending machines in an FMS line. Bending machine schedule: A method for creating L-rule data.

(Prior Art) In recent years, in many FMS lines, a plurality of bending machines have been installed together with other machines on the line and operated on a scheduled basis.

Scheduled operation involves comprehensive management of the entire line↑:
Schedule data is created on one computer, and each machine is operated according to a predetermined schedule based on the schedule data transferred from the main computer.

Here, in the case of bending machines, it is necessary to determine which machine should process a given product with respect to bending machines with various characteristics, so conventionally, this setting has been done manually.

(Problem to be solved by the invention) However, in the conventional manual setting of a bending machine,
Since a manual part is involved in creating the schedule data for the main convenience store L-Evening, there is a problem in that the data creation efficiency is low and the operating efficiency of the line is deteriorated.

Therefore, an object of the present invention is to provide a method for creating schedule data for a bending machine that can efficiently create schedule data by automatically setting the bending machine and improve the operating efficiency of the line body. shall be.

[Effects of the Invention] (Means for Solving the Problems) A method for creating schedule data for a bending machine according to the present invention that solves the problem described in item 1 is a schedule Jl for a bending machine.

- When creating bending data for a given product, we comprehensively consider the mechanical properties of the machine to be bent, such as capacity tonnage and ram stroke Φ, to actually bend the product. 1J- Automatically select machine candidates that can perform the following tasks, then automatically select the most suitable machine from among the machine candidates by examining the current machine operating status and mold operating status, etc. It is characterized by creating schedule data.

(Function) With the above configuration, in the present invention, the optimum machine is automatically selected from a plurality of bending machines, and schedule data can be created for the machine set by this selection, so that schedule data can be created easily. It can be done fully automatically.

(Example) First, as a prerequisite for creating schedule data, multiple bending machines with different characteristics are arranged in parallel in an FMS line, and the controller that controls each bending machine is the main controller that creates schedule data. It is assumed that they are connected via appropriate communication lines.

Further, as shown in FIG. 2, the bending machine 1 has a die holder 3.
A die 5 is fixed on top, and a punch 9 is attached to the punch attachment part (intermediate plate) 7 on one side of the die 5 so as to face the die 5,
A plate material (
(not shown) is bent between a die 5 and a punch 9. In the figure, A, B, C, D, E, and F indicate intermediate plate height, punch hide, die hide, die holder hide, open height, and strike mill, respectively. The intermediate plate 7 or the die holder 3 is fixed within a stroke defined by a ram (not shown).

As shown in FIG. 1, the schedule data creation method of this example starts with inputting bending data for a product to be bent in step 101.

Bending data is data necessary to bend a product, and includes shape data of the bending order that is referenced during bending,
It consists of control data for sequentially controlling the machine.

In step 102, information on the mold used for bending the product is searched. Mold information generally includes mold shape data, pressure resistance data, and special condition data, but here, only the shape data is searched.

In steps 103 to 108, machines that can process the product are limited based on the tonnage capacity by referring to the mechanical property data. That is, here, the maximum required bending tonnage of the bending process for the product in question is estimated, and a machine with a capacity tonnage greater than this required tonnage is selected.

In step 104, the ram stroke suspension of the machines selected in step 103 is checked, H, IL, and a machine with a larger stroke than the maximum required stroke amount for full bending is selected. That is, A-Bunheit F with the die 5 and punch 9 shown in FIG.
The height of the mold (the sum of bunch hide B, die hide C, die holder hide F, and intermediate plate length A) and plate thickness are subtracted from (
16 is calculated, and a machine for which this set is larger than the required stroke amount is selected.

In step 105, from among the machines selected in step 104, a machine whose bendable length is greater than the maximum required bending length of all processes is selected.

In step 106, from among the machines selected in step 105, a machine whose length measurement capacity of the back gauge 11 is larger than the maximum required length measurement capacity among the culms is selected.

In step 107, a variable abutment height machine is selected that can follow changes in the abutment height throughout the entire process.

In step 108, a machine that can abut the back gauge 11 on the left and right sides of the plate material (in the front and back directions of the paper in FIG. 2) is selected. Also, the back and forth movement of the back gauge 11 will be considered.

In step 109, the machines narrowed down as described above are set as machine candidates suitable for bending the product.

In step 110, the following items (1) to (2) are examined regarding the current machine operation status, current mold operation status, etc., and the most suitable machine for bending the product is selected.

■ Use small machines first.

■ In order to meet the delivery deadline, we will consider the efficiency of the machine and the use of two machines in combination.

■ Reduce mold setup time and prioritize machines that can use molds efficiently.

■ Limit machine operating time to keep it within the station.

■ Examine the items specified by the user in accordance with the factory's circumstances, such as the layout and layout.

In step 111, the optimal machine set above is designated for the product in question, and the optimal machine is similarly designated for another product, and each of the given number of products is efficiently bent by the optimal machine. Create predetermined schedule data so that you can

As described above, in creating the schedule data of this example, in steps 103 to 109 machine candidates that can actually bend the product are selected, in step 110 the optimum machine is set based on the site situation, and in step 111 the optimum machine is selected. Since the schedule data is created by a machine, the schedule data can be created fully automatically and efficiently, and the FMS line can be operated in an optimal state using the created schedule data.

The present invention is not limited to the above embodiments, but can be implemented in any appropriate manner by making appropriate design changes.

[Effects of the Invention] As described above, the present invention is a method for creating schedule data for a bending machine as described in the claims, so that schedule data can be created automatically and efficiently.
The operating efficiency of the entire line can be improved.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing a schedule data creation method according to an embodiment of the present invention, and FIG. 2 is a side explanatory diagram of a bending mechanism portion of a bending machine. 5...Die 9...Punch 11...
Back gauge 1091 → Ko

Claims (1)

[Claims] When creating schedule data for a bending machine, we comprehensively consider the mechanical properties of the machine that will bend the product, such as capacity tonnage and ram stroke amount, based on the bending data of a given product. Automatically select machine candidates that can perform bending, then automatically set the optimal machine from among the machine candidates by examining the current machine operating status and mold operating status, etc. A method for creating schedule data for a bending machine, the method comprising creating schedule data.