JPH0679560A - Control device of compound finishing machine - Google Patents

Abstract

PURPOSE:To reduce the cycle time by carrying out an optimum control of a piercing time in a laser processing time, and a rapid traverse stopping position in a tap processing time, without inputting the data of the plate thickness and the like which is adapted to a compound processing machine including a hydrau lic punch press. CONSTITUTION:A detecting means 19 of the plate thickness and the like to obtain the plate thickness and the hardness data of a work W from the position and speed detecting signal Z and from the pressure detecting signal P generated in the punch operation of a hydraulic punch press 1 is provided. Means 27 to 29, and 31 to utilize the data of the plate thickness and the hardness to control a laser processing machine 2 are provided. In the laser processing, the plate thickness data and the like are utilized to control the piercing time, the duty ratio, and the output. In the tap processing, the plate thickness data is utilized to control the converting position H2 of a rapid traverse and a cutting feeding.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a combined processing machine including a hydraulic punch press and a laser processing machine or a tap device.

[0002]

2. Description of the Related Art As a multi-tasking machine for hydraulic punch presses,
Some are equipped with a laser processing machine, a tap device, or both. The control device for this multi-tasking machine is provided with a control unit for each of the hydraulic punch press, the laser processing machine, and the tap device, and each control unit has its own processing data.

[0003]

However, the control data are not mutually used between the control units, and each control unit inputs and controls the data independently. Therefore, the creation of a machining program and data input of each control unit are complicated, or optimal control cannot be performed due to lack of data such as plate thickness, and the cycle time is unnecessarily lengthened.
For example, the piercing time for laser processing becomes unnecessarily long, and the fast-forward stop position of the tap device becomes long, which causes an increase in cycle time.

An object of the present invention is to perform optimum control of the piercing time during laser processing and the fast-forward stop position during tap processing without inputting data such as plate thickness and the like, and a combined processing machine capable of shortening cycle time. It is to provide a control device of.

[0005]

The structure of the present invention will be described with reference to FIG. 1 corresponding to an embodiment. The control device of the present invention is a control device for a multi-tasking machine equipped with a hydraulic punch press (1), and uses feedback signals (P) and (Z) generated during the punching operation of the hydraulic punch press (1) to work ( W) is provided with a plate thickness detection means (19) for obtaining data such as the plate thickness (d), and the detection data of this detection means (19) is used for controlling the laser beam machine (2) or tap device (3). To do.

The control device according to claim 1 is a control device for a combined machining machine comprising a hydraulic punch press (1) and a laser machining machine (2), which is in accordance with the detection data of the plate thickness detecting means (19). A means (27) for controlling the piercing time of the laser processing machine section (2) is provided.

A control device according to a second aspect of the present invention is a control device for a multi-tasking machine comprising a hydraulic punch press (1) and a tap device (3), and taps in accordance with detection data of a plate thickness detecting means (19). Switching position (H)
A speed switching position control means (31) for controlling 2) is provided.

[0008]

In the hydraulic punch press (1), the stroke position and the hydraulic pressure are generally detected for controlling the punching operation, and the stroke position, the stroke speed, the hydraulic pressure data, etc. are provided as feedback signals (Z) and (P). Is obtained. The plate thickness detection means (19) calculates the plate thickness (d) of the work (W) from these data, or further calculates the hardness of the work (W).

The piercing time during laser processing is controlled according to the plate thickness data obtained by the plate thickness detecting means (19), and the switching position (H2) between the fast feed and the cutting feed during tapping is controlled. Control is performed. Therefore, in the laser processing machine (2) and the tap device (3), the piercing time and the fast-forward stop position (H2) can be optimally controlled without inputting data such as the plate thickness, and the cycle time can be shortened.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIG. A composite processing machine to which this control device is applied includes a hydraulic punch press 1, a laser processing machine 2, and a tap device 3, and a common work feeding device (not shown) feeds a work W on the table. It is something to do.

The hydraulic punch press 1 is a turret type in which an upper die 6 and a lower die 7 are installed on upper and lower turrets 4 and 5, and a work is performed by vertically moving the upper die 6 by a hydraulic cylinder 8. W punch processing is performed. The laser processing machine 2 irradiates the laser light oscillated by the laser oscillator 9 from the laser head 10 through the duct 11 to perform the cutting process of the work W. The tap device 3 moves the tap tool 12 up and down while rotating it with a tap drive device 13 including a rotation motor and a lifting drive source,
The lower hole of the work W is tapped.

The control system will be described. The hydraulic cylinder 8 of the hydraulic punch press 1 has a hydraulic servo valve 14 in the upper and lower oil chambers.
Is connected to the hydraulic pump 15 and the drain tank 16 via a hydraulic servo valve 14, and the hydraulic servo valve 14 controls the vertical position and vertical speed. A pressure detector 23 is connected to the hydraulic path of the upper oil chamber. A pulse coder 17 is provided below the hydraulic cylinder 8 and generates a pulse PL proportional to the ascending / descending speed with the ascending / descending operation of the ram 8a. The pulse PL is counted by the position / velocity detection unit 22, and the stroke position and the encoded position of the stroke velocity are detected.
The speed detection signal Z is converted.

The hydraulic punch press control section 18 drives the hydraulic servo valve 14 via the valve control section 25 in accordance with a control signal generated by the main control section 24 to drive the hydraulic cylinder 8 up and down at a set speed pattern. is there. The main control unit 24 controls the position / speed detection signal Z of the position / speed detection unit 22.
And the pressure detection signal P of the pressure detection register 23 are used for feedback control.

The hydraulic punch press controller 18 has a plate thickness detector 20 for calculating the plate thickness d and hardness of the workpiece W from the position / speed detection signal Z and the pressure detection signal P which are the feedback signals. And a hardness detector 21 is provided. These detecting units 20 and 21 constitute a plate thickness detecting means 19.

The laser processing machine control unit 26 is a means for performing various controls of the laser oscillator 9, and a piercing time control means 27 for controlling the piercing time at the start of cutting and a duty ratio of the laser pulse. The control means 28 and the laser output control means 29 are provided.
These control means 27 to 29 generate and output predetermined optimized control signals in accordance with the plate thickness and hardness data transferred from the plate thickness etc. detecting means 19 of the hydraulic punch press control section 18. It is as a thing.

The tap device controller 30 includes a tap tool 12
Is fast-forwarded from the standby position H1 to the switching position H2, and cutting feed (tapping) from the switching position H2 to the lower end position H3 is performed. The speed switching position control means 31 is means for controlling the switching position H2 at this time to a predetermined optimum position according to the plate thickness data transferred from the plate thickness etc. detecting means 19 of the hydraulic punch press control section 18.

The operation of the above configuration will be described. In this type of multi-tasking machine, laser processing or tapping is usually performed after punching. At the time of punching, the plate thickness and hardness data of the work W is obtained by the plate thickness detecting means 19 from the position / speed detection signal Z and the pressure detection signal P which are feedback signals necessary for controlling the punching operation. Is calculated.

At the time of laser processing, the piercing time, the duty ratio, and the output are determined by the control means 27 to 29 according to the plate thickness and hardness data. Therefore, the optimum laser processing can be performed, and the cycle time and the processing quality can be improved. During tapping, the control means 31 determines the switching position H2 from the rapid feed to the cutting feed, based on the plate thickness data. Therefore, the switching position H2 can be brought close to the optimum position according to the plate thickness,
Improves cycle time.

As described above, the plate thickness and hardness can be detected by utilizing the detection data at the time of punching, and can be used for laser processing and tapping. Therefore, optimal laser processing and tap processing can be performed without inputting and setting the plate thickness data and hardness data by the operator, and therefore the cycle time can be shortened by a simple operation.

Although the hydraulic punch press control unit 18 is controlled in the closed loop in the above embodiment, the main control unit 24 may be controlled in the open loop when performing the lot processing. In that case, for example, the plate thickness and hardness are calculated by the plate thickness detecting means 19 based on the position / speed detection signal Z and the pressure detection signal P obtained during trial punching such as when changing lots, and the main control unit is calculated according to the calculation result. Two
It is assumed that the processing patterns corresponding to various plate thicknesses preset in 4 are automatically selected.

[0021]

The control device for a multi-tasking machine according to the present invention is provided with plate thickness detecting means for obtaining data such as plate thickness related to a workpiece from a feedback signal generated during punching operation of the hydraulic punch press section. The piercing time during laser processing or the switching position between rapid feed and cutting feed during tapping is controlled according to the detection data, so the piercing time and the rapid feed stop position can be set without inputting the plate thickness data. The optimum control can be performed and the cycle time can be shortened.

[Brief description of drawings]

FIG. 1 is a block diagram of a conceptual configuration of an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hydraulic punch press, 2 ... Laser processing machine, 3 ... Tap device, 8 ... Hydraulic cylinder, 9 ... Laser oscillator, 10 ... Laser head, 13 ... Tap drive device, 14 ... Hydraulic servo valve, 17 ... Pulse coder, 18 ... hydraulic punch press control unit, 19 ... plate thickness detection means, 22 ... position / speed detection unit, 23 ... pressure detector, 26 ... laser processing machine control unit, 3
0 ... Tap device control unit, 31 ... Speed switching position control means,
27 ... Piercing time control means, H2 ... Switching position

Claims (2)

[Claims] 1. A control device for a combined processing machine comprising a hydraulic punch press and a laser processing machine, wherein plate thickness detecting means for obtaining data such as plate thickness relating to a workpiece from a feedback signal generated during punching operation of the hydraulic punch press. And a piercing time control means for controlling the piercing time of the laser processing machine according to the detection data of this means. 2. A controller for a multi-tasking machine comprising a hydraulic punch press and a tap device, and a plate thickness detecting means for obtaining data such as plate thickness related to a workpiece from a feedback signal generated during punching operation of the hydraulic punch press. A control device for a multi-tasking machine, comprising speed switching position control means for controlling the switching position between the rapid feed and the cutting feed of the tap device according to the detection data of this means.