JPH11245098A - Forming pattern selecting device of servo press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a forming pattern selecting device of a servo press, which selects the forming pattern quickly and accurately in a slide motion and improves efficiency of press processing. SOLUTION: Standard forming patterns being normally used for press processing are provided which displays on a forming pattern 2 of a forming pattern selecting screen 1 from a pattern with only two positions at top and bottom dead centers to a pattern with eight positions wherein a position 3 between the top and bottom dead centers is increased one by one from one to six. Further, a special forming pattern is set so as to provide a inputable spare 4. These patterns are designed as a touch panel using a liquid crystal so as to select one pattern by touching it. Then, a forming setting key 5 is pushed, so as to select a corresponding NC program pre-memorized in a control device not shown.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a servo press forming pattern selecting device provided in a slide control device driven by a servo motor and performing a linear ascending and descending motion. This is effective when it is desired to easily and accurately select the bottom dead center position in the pattern.

[0002]

2. Description of the Related Art Conventionally, a press machine driven and controlled by a servomotor performs one or two fixed motion patterns by setting a forming pattern each time according to the conditions of the press working. I was going. For example,
Japanese Patent Application Laid-Open No. 2-224898 discloses such a technique.

[0003]

The above-mentioned press machine has a drawback that the working efficiency is poor in rapidly setting and inputting various molding patterns required for the press working of various small-quantity products. . A press machine driven and controlled by a servomotor is characterized by its free operation and control of various motion patterns. However, it is an essential condition that a required forming pattern can be efficiently input to a control device. .

[0004] It is an object of the present invention to provide a servo press forming pattern selecting apparatus which can solve the above-mentioned problems, quickly select a forming pattern, and improve press working efficiency.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a servo press forming pattern selecting apparatus in a controller for linearly moving a slide up and down by a servomotor. ), One of a plurality of molding patterns having different numbers of positions arranged and arranged on the screen is selected, and the bottom dead center of the selected molding pattern can be designated at an arbitrary position position.

In the above-mentioned forming pattern selecting apparatus, the lowest position of the selected forming pattern is automatically selected as the bottom dead center.

In the above-described molding pattern selection apparatus, a range in which the position selected as the bottom dead center can be recognized as having reached the bottom dead center, that is, an allowable width of the bottom dead center can be numerically set.

Further, in the above-mentioned forming pattern selecting apparatus, the numerical value of the position data to be input for the selected forming pattern can be selected based on either the reference on the height above the bottom dead center or the reference on the bolster. And

[0009]

[Function] Since a plurality of molding patterns are prepared in advance, it is possible for an operator to immediately select an optimal molding pattern for press working by touching with a finger. It is convenient and efficient because it is automatically selected. When specifying the bottom dead center, it can be specified at any position. Further, the allowable width of the bottom dead center, that is, the value of the height at which the slide is further lowered beyond the bottom dead center after reaching the bottom dead center of the slide is μ.
Since it can be set in units of m, the reproducibility of molding is good, the accuracy is improved, and stable product processing is possible.

[0010]

1 and 2 show an embodiment of a forming pattern selecting apparatus for a servo press according to the present invention. FIG. 1 shows a molding pattern selection screen 1. A molding pattern 2 is usually used for press working from a position 3 indicated by a circle as a molding pattern 2 to a position 8 having only a top dead center and a bottom dead center, to an eight position. Standard molding pattern 2
Are prepared. The molding pattern 2 shows a pattern during one stroke of the slide, and the vertical axis represents the slide position,
FIG. 3 is a diagram drawn with time on the horizontal axis. The reserve 4 is used when setting a special molding pattern for a product that cannot be handled by the standard molding pattern 2.

The molding pattern selection screen 1 is a touch panel using liquid crystal for each screen of the molding pattern 2.
By touching a required screen, the pattern can be selected. When the selected screen is pressed by pressing the molding setting key 5, a corresponding NC program stored in a control device (not shown) is selected. It is displayed on the molding setting screen 6 shown in FIG. The NC program of the special molding pattern when the spare window 4 is selected and the position of the position 3 is determined and set is created and stored by the control device every time the position 3 is set. That is, position 3
Are set and the time and speed from position 3 to the next position 3 are created and stored.

FIG. 2 shows the configuration of the molding setting screen 6, in which the molding pattern 2 selected on the molding pattern selection screen 1 described above.
Is displayed on the molding setting screen 6 by pressing the molding setting key 5. Position 4 at the lowest point of the displayed forming pattern 2 is automatically selected as the bottom dead center. However, in the case of coining or drawing, it is preferable to be able to arbitrarily select the bottom dead center during molding. Since it is easy, the user can select a desired point by inputting a required numerical value.

A display section 7 and setting positions 8 and 9 are provided on the right side of the molding setting screen 6. The display section 7 displays the current position of the slide and the pressing force. The setting position 8 is used to input prerequisite main data including the bottom dead center, and the setting position 9 is used to input the position of each point and the like. After touching the bottom dead center height window 10 at the setting position 8, confirm the number of the input value 11.
Touch 4. This sets the bottom dead center height. At this time, whether the input numerical value is the height above the bottom dead center or the height above the bolster can be selected by touching the selection key 12. Next, the bottom dead center width window 13 is touched, and the bottom dead center width is input by the same operation. As the bottom dead center width, an allowable width to reach the target bottom dead center can be set in a unit of μm. Therefore, the processing error of the product can be set to the unit of μm,
High precision and uniform product processing is possible. Touch the stroke length window and enter the stroke length.

At the setting position 9, each point (points 1 to 5 and the like) of the molding pattern 2 displayed manually is selected as necessary, and each window of the displayed item is touched to set a required numerical value. You can enter it. The input value can be corrected by the +/- correction key 15. As described above, if necessary data is manually input as required, an NC program for controlling the slide stroke and other necessary programs are set in a control device (not shown), and product processing by a servo press is possible. Becomes

[0015]

As is clear from the above description, according to the present invention, by selecting and touching a standard forming pattern, a required forming pattern for pressing is automatically selected to perform pressing. Since the preparation is completed, it is possible to shorten the setup time and the time for trial hitting of the product, that is, the time for die trial, and it is possible to improve the efficiency of press working. In addition, since necessary numerical values can be input as needed, it is convenient that the selected molding pattern can be automatically modified to cope with special press working. Further, since a special molding pattern can be set and used by inputting into a spare window, it can be applied to various nonstandard press workings.

[Brief description of the drawings]

FIG. 1 is a diagram showing a molding pattern selection screen according to an embodiment of the present invention.

FIG. 2 is also a molding setting screen diagram

[Explanation of symbols]

1 is a molding pattern selection screen, 2 is a molding pattern, 3 is a position, 4 is a spare window, 5 is a molding setting key, 6 is a molding setting screen, 7 is a display unit, 8 and 9 are setting positions, and 10 is a bottom dead. Point height window, 11 is input value, 12 is selection key, 13 is bottom dead center width window, 14 is input key, 15 is +/- correction key,
It is.

Claims (4)

[Claims] In a servo press forming pattern selecting device in a control device for moving a slide linearly up and down by a servomotor, a plurality of forming patterns having different numbers of positions arranged and arranged on a screen of a graphic user interface (GUI) are provided. A molding pattern selecting apparatus for a servo press, wherein one of the molding patterns is selected and a bottom dead center of the selected molding pattern can be designated at an arbitrary position. 2. A forming pattern selecting apparatus for a servo press according to claim 1, wherein the lowest position of the selected forming pattern is automatically selected as a bottom dead center. 3. A forming pattern selecting apparatus for a servo press according to claim 1, wherein the allowable allowable width of the selected bottom dead center can be set as a numerical value. 4. The method according to claim 1, wherein the numerical value of the position data to be input for the selected molding pattern can be selected based on either the height reference above the bottom dead center or the reference above the bolster. Servo press forming pattern selection device.