JP2001001195A - Transfer press line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform transfer working in a high speed while reducing moment inertia energy of a feed bar, to reduce a die cost as well as a set up time and to perform various transfer workings. SOLUTION: Single press units P, which have a slide 11 driven by a servo motor and a transfer unit 20 driven by a servo motor, are arranged in plural units as orthogonal in the lateral line and the longitudinal line. A compound working press machine PA is arranged at the crossing position of the lateral line and the longitudinal line. The respective press units P and the compound working press machine PA are singly controlled by a master controller. The respective press units P and the compound working press machine PA are subjected to synchronous control to the first press unit P1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component type transfer press line in which a plurality of transfer presses driven by a position control motor such as a servomotor or a linear motor are arranged in a direction orthogonal to each other to perform complex machining. .

[0002]

2. Description of the Related Art Generally, transfer processing of a press machine is performed by transferring a blank material punched out in a primary process to a next process in a mold formed in multiple steps, and thus performing a transfer press. The machine is provided with a long feed bar that grips the blank material and transports the blank material to the next process along the entire transport direction in the mold. The feed bar is normally reciprocated in the transport direction by a transfer drive unit installed on the work loading side.

A conventional transfer press is disclosed in, for example, Japanese Patent Application Laid-Open No. 9-38736 for a mechanically driven press.
As shown in the figure, a transfer feed connected from a crankshaft of a press machine via a belt is mounted. The mold has multiple steps, the upper mold is mounted on the entire slide lower surface connected from the crankshaft,
A feed bar on which fingers for holding a blank material are mounted extends along the transport direction throughout the inside of the mold. A drum cam is arranged in a drive unit of the transfer feed, and the drum cam connected from the crankshaft via a belt rotates, so that the X of the feed bar is rotated.
The movement is performed in the axial direction, and the finger is moved in the Y-axis direction from the feed bar via the bell crank lever to grip the blank material.

[0004]

However, in a conventional mechanically configured transfer press machine, one transfer device and one set of dies are mounted on one press machine.
The work is processed and transported in the mold by moving the individual slides up and down. Also, since a mold requires multiple steps, a plurality of processing stations are arranged. Therefore, the pressurizing ability of the press machine is increased, and accordingly, the mold must be formed large and complicated. In particular, in the case of a mold that transports the work so as to be orthogonal to perform the complex machining, the mold has to be formed into a more complicated and large mold structure. The more complex and large the presses and dies, the more the cost per press and dies increases. In addition, since all the stations are operated at the same timing by the crankshaft, it is not possible to change the stroke or the processing timing at each station. Further, the feed bar is formed in a long shape along the transport direction in order to transport the work to all the stations by driving the transfer device. For this reason, the weight of the feed bar increases, and the inertia force also increases, which hinders high-speed rotation.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and simplifies the structure of a mold by arranging a plurality of single transfer presses each having a transfer unit mounted thereon in the orthogonal direction, thereby reducing mold cost. While reducing
It is an object of the present invention to provide a transfer press line that can control various transfer presses individually, enables various press workings with easy operation, and can rotate at high speed.

[0006]

The transfer press line according to the present invention is configured as follows to solve the above-mentioned problems. That is, a plurality of single transfer presses having a slide driven by the position control motor and a transfer unit driven by the position control motor are arranged in a direction orthogonal to each other, and are arranged in each direction. Transfer press, while transferring the workpiece toward a combined working press machine having a position control motor disposed at an intersecting position, the combined working press machine performs the final step press working, and each transfer press and Each position control motor of the composite working press machine is controlled by a master controller.

Preferably, the master controller has a data input section for invoking setting data of dies to be mounted on each transfer press and the combined working press machine; An arithmetic processing unit for performing synchronous control based on data of the multi-tasking press machine; a multi-axis control system for presses for giving commands to each transfer press and a slide of the multi-tasking press machine from the arithmetic processing unit; Transfer multi-axis control system for giving commands to each transfer unit from
What is necessary is just to be the thing which has.

Further, the arithmetic processing unit is configured to control the operation of the slides of the other transfer press and the combined working press in synchronization with the first transfer press arranged in one direction. It is even better if it has features.

Further, the arithmetic processing unit may be configured to control the operation of another transfer unit in synchronization with the transfer unit of the first transfer press.

It is preferable that the position control motor is a servo motor or a linear motor.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, a transfer press line (hereinafter, referred to as a press line) 1 of the present embodiment includes a single transfer press (hereinafter, referred to as a press unit) P which is arranged in a plurality in a direction orthogonal to each other.
And a composite processing press PA that is disposed at the intersecting position and that performs the composite processing by transferring the work from each direction. In the present embodiment, the single transfer press P is applied to a die-type press machine 10 in which a slide drive device has a servomotor (or a linear motor) and is arranged below a slide 11 in the X-axis direction (transfer direction). ), A transfer unit (hereinafter, referred to as a transfer) 20 having a feed bar 22 driven by a servomotor (or a linear motor) in the Y-axis direction (work gripping direction) and the Z-axis direction (vertical direction). .

The slide 11 of the press machine 10 is configured to be able to reciprocate up and down via a guide post 12 by a crank drive, a cam drive or a toggle drive (not shown) by a servo motor mounted in the main body.

In the transfer 20, a transfer drive unit 21 is mounted on the work loading side of the press machine 10, and two feed bars 22 are arranged in parallel along the transport direction so as to sandwich the work W from the transfer drive unit 21. Then, an X-axis servomotor (or linear motor) for driving the X-axis movement of the feed bar 22, a Y-axis servomotor (or linear motor) for driving the Y-axis movement of the feed bar, Z Z driving axis movement
A shaft servomotor (or linear motor) and a servomotor (or linear motor) for driving the material insertion device as a special specification are mounted.

At least one set of fingers 23 (six in the figure) formed so as to be able to grip the workpiece W is mounted on each feed bar 22 arranged in parallel so as to face each other, and the workpiece W is gripped. To the next process.

In the present embodiment, in the present embodiment, a slide 11 is mounted above a die-type press machine 10 so as to be reciprocable up and down similarly to the transfer press P, and is orthogonally arranged along the transfer presses P in each row. The transfer 20 is mounted in each direction. The slide 11 and the transfer 20 are driven by a servo motor (or a linear motor) as described above.

A mold for each press unit P is mounted on the press machine 10 of each transfer press P and the composite working press machine PA. A card in which a registration number is set and various data are input is inserted into the mold, and the data is called into the control device. The data input to the mold is stored in the press 10 and the transfer 2
0 Further, each data relating to the work W, for example, in the press machine 10, the pressurizing capacity, the number of revolutions, the die height, the stroke amount, the process curve and the like of the press machine 10 are set. Stroke, clamp stroke, advance / return clamp / unclamp timing, feed bar grip position, feed bar grip height position, feed bar 2
2. For the workpiece, the material, width, thickness and length of 100 items or more, such as the cam curve for driving 2 and the feed amount, the number of rows, the pitch between rows, etc. of the material insertion device as a special specification (for example, zigzag feed) Are set. These data are stored in the master controller 30 of the control device at the same time when the mold is mounted on the press
Is input to

As shown in FIG. 4, the master controller 30 has a data input unit 31 for inputting each mold data,
An arithmetic processing unit 32 that calculates data from the data input unit 31 to generate data for each of the press units P and the multi-tasking press PA and controls the press units P and the multi-tasking press PA so that they can be operated synchronously; And a multi-axis control system unit 33 for transmitting a command from the arithmetic processing unit 32 to each of the press units P and the composite working press PA.

In the data input section 31, setting data relating to the press unit 10, the transfer machine 20, the work W, etc. of each of the press units P and the multi-tasking press machine PA is automatically processed and set from the above-mentioned mold data. Recognizing the registration numbers of the press unit P and the multi-tasking press PA, various reference data for ensuring reproducibility at the time of a power failure, such as setting of setup time and ABS of the servo motor
Automatic setting such as setting of control position coordinates is performed.

The arithmetic processing section 32 performs arithmetic processing on the following items in order to synchronously control the data processed by the data input section 31 to each of the press units P and the composite working press PA.

Press machine 10 of first press unit P1
The movement of the slide 11 of each press unit P and the multi-tasking press PA is controlled in synchronization with.

In synchronization with the transfer 20 of the first press unit P1, each press unit P and the transfer 20 of the combined working press PA are controlled.

The material insertion device is synchronously controlled by each of the press units P and the composite working press P alone.

A process curve for each press unit 10 of each press unit P and the multi-task press PA is controlled by a selected process curve.

The transfer unit 20 of each press unit P and the composite working press machine PA is synchronized with each press machine 10 and controlled synchronously with another transfer machine 20.

The multi-axis control system unit 33 transmits a command to a servomotor for driving the slide 11 of the press machine 10, and the multi-axis control system unit 34 for the press machine.
And a transfer multi-axis control system unit 35 for transmitting a command to each servo motor of the transfer 20. Multi-axis control system for press machine 34
Controls the command from the driver 13 for the press machine 10 provided in each of the press units P and the multi-tasking press machine PA to the servomotor 14 for slide drive. The transfer multi-axis control system unit 35 From the driver 25 for the transfer 20 provided in the P and the composite processing press PA to the servo motors 26 of the transfer 20 and the driver 27 for the material insertion device.
Command control to the servomotor 28.

The press line 1 shown in FIGS. 1 and 2 includes, for example, a single press unit P having a 5-ton press machine 10 and a transfer machine 20 mounted on the press machine 10 in a left-right direction (hereinafter, referred to as a horizontal row). Table and two in the front-rear direction (hereinafter referred to as “columns”) are arranged side by side in the direction orthogonal to each other, and the composite processing press PA is arranged at the crossing position to make a total of 25
Has ton capacity. Each of the press units P arranged in rows and columns is responsible for each step of the transfer processing, and in the first step in the row (first press unit P1) and the first step in the column (third press unit P3), the first station The work W punched out in the first step is transferred from the second station of the first step through the stations of the second step (second press unit) in the horizontal row and the second step (fourth press unit P4) in the vertical line to the combined processing press PA. Transport,
The work W conveyed from the horizontal and vertical rows by the composite processing press PA is subjected to composite processing via each station in the composite processing press PA to complete the final process. Then, the work W is taken out by a robot (not shown) and transferred to the next transfer line.

As shown in FIG. 3, for example, seven processing stations S are arranged in the single press unit P, and six sets of fingers 23 are attached to the feed bar 22. Therefore, in each process (each press unit P), the rotation speed, die height, stroke amount, process curve, and the like are set according to the data of the mold on which one slide 11 is mounted, and the slide drive is performed. Driven by the servo motor 14. Further, in the transfer 20, a transport stroke, a workpiece gripping stroke, a gripping time, a transport timing, and the like are set, and the feed bar 22 is driven by each servo motor 26 in synchronization with the operation of the slide 11.

When the press line 1 is operated, first, the registration numbers of the respective press units P and the composite processing press PA are recognized, and the respective press units P and the composite processing press PA are matched with the master controller in accordance with the registration numbers. 3
It is controlled and operated from 0.

In the first station S1 of the first press unit P, the work W is supplied in a direction orthogonal to the transfer direction of the transfer 20, and punching is performed as primary processing. Supported above. At this time, the slide 11 receives a command from the arithmetic processing unit 32 of the master controller 30 via the multi-axis controller system unit 34 for the press machine, and converts the slide data into die data by the slide driving servomotor 14 which receives the command from the driver 13. It is actuated along a process curve selected on the basis of this. If necessary, a material insertion device for special processing may be arranged at any of the stations S except the first station S1.

The transfer 20 receives a command from the arithmetic processing unit 32 of the master controller 30 via the transfer multi-axis controller system unit 35, and feeds the X-axis driving servo motor 26, The Y-axis drive servomotor 26 and the Z-axis drive servomotor 26 are controlled so as to be synchronized with the movement of the slide 11, and the workpiece W is gripped by the finger 23 and transported to the next step. Further, the material insertion device also receives a command from the driver 27, and the material insertion device servomotor 2
By means of 8, control is performed so that the workpiece W can be combined and processed at a predetermined processing station S in synchronization with the movement of the slide 11.

The second press unit P2 to the fourth press unit P in the second step in the row and the first and second steps in the column
The slide 11 and the transfer 20 of the press machine 10 in 4 can be driven by a different specification from the first press unit P1. For example, specifications such as a stroke amount, a die height, or a process curve of the slide 11 are changed. However, each of the presses 10 and the transfer units 20 in the second process in the horizontal row and the first and second processes in the vertical sequence are all operated by the arithmetic processing unit 3 so as to synchronize with the press unit P1 in the first process.
2 is controlled.

In the composite processing press PA, the die height for composite processing, the process curve of the slide 11 or the change of the X-axis, Y-axis and Z-axis movement lengths of the transfer unit 20 and the like are determined by the master controller 30 according to original specifications. Controlled.

Therefore, when the work W completed in the final processing station in the previous process is transported to the first station in the next process, the press unit P in the next process is operated independently based on the respective specifications. Since the drive bar is always driven synchronously with the first press unit, the feed bar 22 in the previous process can be driven without disturbing the transfer timing.
Can hold the work W and place it at a predetermined position in the first station of the next process. Therefore, the transfer between the processes can be reliably performed without causing a timing shift.

The configuration of the transfer line 1 of the above-described embodiment is not limited to the above-described one,
What drives the zero slide 11 may be a linear motor or a stepping motor instead of a servomotor. Further, as shown in FIG. 5, the composite working press PA may be an assembling machine that assembles the works W conveyed from the rows and the columns to obtain the final product. Further, the number of processing stations in each process can be freely selected depending on the processing content of the work.

[0035]

According to the present invention, a transfer press line according to claim 1 is a single transfer press having a slide driven by a position control motor and a transfer unit driven by a position control motor. A plurality of units are arranged in a direction orthogonal to each other, and transfer presses arranged in each direction convey a work toward a combined machining press machine having a position control motor arranged at an intersecting position, The composite working press machine performs the final step of press working, and each transfer press and each position control motor of the composite working press machine are controlled by a master controller. Therefore, a single transfer press and a combined processing press equipped with a transfer unit can reduce the size of the press itself and divide the conventional multi-step mold for orthogonal composite processing, thereby simplifying the mold structure. Can be manufactured at very low cost. In addition, the divided transfer press can shorten the feed bar for gripping and transporting the work, so that the inertia force of the feed bar can be reduced, and therefore, it is possible to cope with high speed.
Furthermore, since each transfer press can be independently controlled by the master controller, each transfer press can be set freely, and it is possible to cope with various types of transfer processing of a work and its operation can be performed very easily. it can. Therefore, the setup time can be shortened.

A transfer press line according to a second aspect of the present invention is the transfer press line, wherein the master controller calls a setting data of a mold mounted on each transfer press and the combined working press machine, and a setting data of each mold. An arithmetic processing unit for performing synchronous control based on data of each transfer press and multi-tasking press machine calculated from a multi-press press for giving commands to slides of each transfer press and multi-tasking press machine from the arithmetic processing unit A control system unit; and a transfer multi-axis control system unit for issuing a command from the arithmetic processing unit to each transfer unit. For this reason, the specifications of the transfer press and the composite working press can be freely set in each step depending on the die to be mounted, and various transfer workings can be performed.

According to a third aspect of the present invention, there is provided the transfer press line, wherein the arithmetic processing unit is disposed in one direction.
It is configured to control the operation of the slides of the other transfer press and the multi-tasking press machine in synchronization with the transfer press, so that each transfer press can independently set its specifications and always match the first transfer press. Press working can be performed. Therefore, the transfer between the transfer presses can be reliably performed without generating a timing shift.

According to a fourth aspect of the present invention, in the transfer press line, the arithmetic processing unit is configured to control the operation of the other transfer units in synchronization with the transfer unit of the first transfer press. The specifications can be set independently, and press working can always be performed in accordance with the first transfer unit. Therefore, the transfer between the transfer units can be reliably performed without causing a timing shift.

In the transfer press line according to the fifth aspect of the present invention, since the position control motor is a servo motor or a linear motor, the transfer press line is extremely compact as compared with a conventional press having a complicated structure having a clutch mechanism. Press machines and transfer press lines can be provided.

[Brief description of the drawings]

FIG. 1 is a simplified perspective view showing a transfer press line according to one embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a plan view showing one embodiment of a transfer unit in FIG. 1;

FIG. 4 is a simplified block diagram showing a control circuit of the transfer line of FIG. 1;

FIG. 5 is a plan view showing another type of transfer line.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Transfer press line 10 ... Press machine 11 ... Slide 13 ... Driver 14 ... Servo motor 20 ... Transfer unit 22 ... Feed bar 23 ... Finger 25, 27 ... Driver 26, 28 ... Servo motor 30 ... Master controller 31 ... Data input part 32: Arithmetic processing unit 33: Multi-axis control system unit 34: Multi-axis control system unit for press machine 35: Multi-axis control system unit for transfer P: Press unit PA: Composite machining press machine W: Work

Claims (5)

[Claims] 1. A plurality of single transfer presses having a slide driven by a position control motor and a transfer unit driven by a position control motor are arranged in a direction orthogonal to each other. The arranged transfer press conveys the work toward a combined working press machine having a position control motor arranged at a crossing position, and the combined working press machine performs press working in a final step, and A transfer press line, wherein a transfer control and each position control motor of the combined working press are controlled by a master controller. 2. A data input section for inputting setting data of dies to be mounted on each transfer press and the complex working press machine, and a transfer press and a compound calculated from setting data of each mold by the master controller. An arithmetic processing unit for performing synchronous control based on data of a processing press, a multi-axis control system for presses for giving commands to the slides of each transfer press and the composite processing press from the arithmetic processing unit, and the arithmetic processing unit 2. The transfer press line according to claim 1, further comprising: a transfer multi-axis control system unit for issuing a command to each of the transfer units. 3. The apparatus according to claim 2, wherein the arithmetic processing unit is configured to control the operation of the slides of the other transfer press and the compound working press in synchronization with the first transfer press disposed in one direction. The transfer press line according to claim 2, characterized in that: 4. The transfer press line according to claim 2, wherein the arithmetic processing unit is configured to control the operation of another transfer unit in synchronization with the transfer unit of the first transfer press. . 5. The transfer press line according to claim 1, wherein the position control motor is a servo motor or a linear motor.