JPH06246560A - Three-dimensional plate complex machining device - Google Patents

Abstract

PURPOSE:To produce plate machined products of three-dimensional shape including various machined parts with high machining efficiency without requiring many machine tools and that with high accuracy while being excellent in handling performance with a small number of shafts. CONSTITUTION:A three-dimensional plate complex machining device is provided with a workpiece holding conveyor member 27 movable along a carrier path, extended along one X-axis direction, for positioning while holding a plate W, a workpiece, removably in the vertical position; a laser machining means having a laser machining head 39 opposed to the plate face of the plate W held by the workpiece holding conveyor means 27 so as to apply laser machining to the plate W; and a pair of press forming working robots 47 disposed on both sides of the carrier path of the workpiece holding conveyor member 27, each with a tool mounted in the replaceable state on the tip of the arm thereof so as to apply press forming working to the plate W.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional plate material composite processing apparatus, and more particularly to a three-dimensional plate material composite processing apparatus for completing a plate material product having a three-dimensional shape by a composite processing of laser processing and pressure forming processing. Is.

[0002]

2. Description of the Related Art For example, a three-dimensional plate material processed product as shown in FIG. 4 has various kinds of processing such as a punching part, an embossing part, a press forming part such as a burring part, a cutting part, a bending part and the like. In the past, turret punch press is used for press forming such as drilling, embossing, and burring, laser processing equipment is used for cutting, and bending machine is used for bending. ing.

[0003]

Therefore, in order to complete the plate material processed product as described above, a turret punch press for press forming, a laser processing machine for cutting, a bending machine for bending, and others, Multiple processing machines and tools such as welding machines and finishing tools are required.

Regarding the handling of a plurality of machines, a plurality of workers are required, and it is necessary to change the work jig at any time along with the change of the work piece, and a lot of time is spent on such preparatory work. .

In the field of processing mainly for sheet metal processing for prototyping, which requires a short product change cycle and is required to produce various kinds in small quantities, how to improve the processing efficiency of such low-productivity products becomes a major issue. Has become.

The present invention has been made by paying attention to the above-mentioned problems, and produces a three-dimensional plate material processing product including various processing parts with high processing efficiency without requiring many processing machines. It is an object of the present invention to provide a three-dimensional plate material composite processing apparatus that can perform high-precision processing with a small number of axes and excellent handleability.

[0007]

SUMMARY OF THE INVENTION According to the present invention, the above object is to hold a plate material which is a work piece in a vertical posture in a detachable manner, and to carry it along a conveying path extending along one axis. With respect to the plate material held by the workpiece holding and conveying means, which has a workpiece holding and conveying means which can be positioned and moved, and a laser processing head which faces the plate surface of the plate material held by the workpiece holding and conveying means. A laser processing means for performing laser processing and a plate material which is arranged on both sides of the conveyance path of the workpiece holding and conveying means, faces each other, and has a tool exchangeably mounted on the tip of an arm so that the workpiece holding and conveying means holds the plate material. And a pair of pressure forming robots that perform pressure forming processing for the three-dimensional plate material composite processing apparatus.

Further, in the three-dimensional plate material composite processing apparatus according to the present invention, the laser processing means and the press forming robot are arranged so as to be offset from each other in the direction of the transfer path of the work holding and transfer means. Good.

Further, in the three-dimensional plate material composite processing apparatus according to the present invention, the work piece holding and conveying means is constructed such that the conveyance guide is of a ceiling rail type, and the work piece holding means detachably holds a plate material as a work piece in a vertical posture. The body may be suspended from the transport guide.

[0010]

According to the above construction, the plate material held by the workpiece holding and conveying means is subjected to laser processing such as cutting by the laser processing means, and at the same time, a pair of press forming robots is used for punching. Press molding such as embossing and burring is performed.

The workpiece holding and conveying means positions and moves the workpiece (plate material) in the direction of the conveying path of the workpiece holding and conveying means, for example, the X-axis direction, whereby the laser machining means and the pair of pressure forming robots are operated. Laser processing and press forming are performed at a predetermined position in the X-axis direction of the plate material held by the workpiece holding and conveying means without positioning and moving in the X-axis direction.

Further, since the laser processing means and the press forming robot are arranged so as to be offset from each other in the direction of the transfer path of the work holding and transfer means, they do not interfere with each other and the laser processing position is maintained. The press molding processing position may be set by offsetting according to a predetermined value that is uniquely determined by the deviation amount of both.

Further, since the work holding and carrying means is constructed such that the carrying guide is of a ceiling rail type, and the work holding body for detachably holding a plate material which is a work in a vertical posture is suspended and attached from the carrying guide. The residual material, chips and the like caused by the processing do not drop and adhere to the conveyance guide of the work holding and conveying means.

[0014]

Embodiments of the present invention will be described in detail below with reference to the drawings.

1 and 2 show one embodiment of a three-dimensional plate material composite processing apparatus according to the present invention. The three-dimensional plate material composite processing apparatus has a frame 1 having a rectangular frame shape. The frame 1 includes a lower right side beam 3 and a lower left side beam 5 extending in the X-axis direction, and lower cross beams 7 and 9 connecting both ends of the lower right side beam 3 and the lower left side beam 5 to each other. Lower frame 11 constructed
And the upper right side beam 13 and the upper left side beam 15 extending in the X-axis direction, and the upper cross beams 17 and 19 connecting the respective ends of the upper right side beam 13 and the upper left side beam 15 to each other. The upper frame 21 and the four posts that connect the lower frame 11 and the upper frame 21 to each other at the four corners form a highly rigid box shape.

Left-right direction of upper frame 21 (Y-axis direction)
An upper center beam 23, which extends in parallel with the upper right side beam 13 and the upper left side beam 15, that is, extends in the X-axis direction and is bridged between the upper cross beams 17 and 19, is integrated in the central part of Is seen in the past. A ceiling guide rail 25 is attached to the upper center beam 23 in the X-axis direction, and a workpiece holding and conveying member 27 is suspended and attached to the ceiling guide rail 25.

The workpiece holding / transporting member 27 detachably holds the plate material W which is a workpiece in a vertical posture, and is guided by the ceiling guide rail 25 in a state where the plate material W is held in a vertical posture to be guided by the X-axis. Can be moved in any direction, and a general feed screw mechanism (not shown) driven by servo drive
It is designed to be positioned and driven in the axial direction.

The upper center beam 23 and the ceiling guide rail 25 have extension portions 23a and 25a extending outward from the upper frame 21, and accordingly, the work holding and conveying member 27 is shown in FIG. As described above, the plate material W is received from the plate material conveying carriage 29 at the plate material transfer position outside the upper frame 21.

A Y-axis guide rail 33 for laser processing is fixedly mounted on the upper frame 21 with a base 31 between the upper right side beam 13 and the upper left side beam 15 and bridged. The laser processing Y-axis guide rail 33 extends in the Y-axis direction at a predetermined position in the X-axis direction, and the carriage 35 is movable in the Y-axis direction on the laser processing Y-axis guide rail 33. . The carriage 35 is positioned and driven in the Y-axis direction by a feed screw mechanism or the like, which is not shown in the drawings, and is driven by a general servo drive.

The carriage 35 has a Z-axis direction (vertical direction).
A vertical movement slider 37 is movably engaged with. The vertical slider 37 is positionally driven in the Z-axis direction by a feed screw mechanism by a general servo drive (not shown), and has a laser processing head 39 at its lower end.
Although not shown in the figure, the laser processing head 39 faces the plate surface of the plate material W vertically supported by the workpiece holding and conveying member 27 in an arbitrary three-dimensional spatial orientation by three rotary shaft configurations, A laser beam given from a laser oscillator 41 through an optical path (not shown) is applied to the plate surface of the plate material W to perform laser cutting processing and laser welding processing.

A right robot frame 43 connecting the lower right side beam 3 and the upper right side beam 13 to each other is provided between the lower right side beam 3 and the upper right side beam 13, and both are provided between the lower left side beam 5 and the upper left side beam 15. The left robot frames 45 connecting the two are fixedly mounted integrally with each other, and the right robot frame 43 is mounted on the right robot frame 43.
7, the left side robot frame 45 is provided with the left side pressure forming robots 49, respectively.

The right robot frame 43 and the left robot frame 45 are respectively provided on the X-axis of the Y-axis guide rail 33 for laser processing.
The right robot frame 43 and the left robot frame 45 are located at the same position in the X-axis direction, although they are arranged at positions different from the axial position in the X-axis direction. Molding robots 47, 4
9 is opposite to the laser processing head 39 on both sides of the workpiece holding and conveying member 27 in the direction of the conveying passage of the workpiece holding and conveying member 27, that is, at a position deviated in the X-axis direction. .

Left and right pressure forming robots 47, 49
Have the same structure with their left and right directions reversed, and are vertically movably engaged with Z axis guide rails 51 and 53 provided on the right robot frame 43 and the left robot frame 45, respectively. , 57 have vertical movement sliders 59, 61 which are driven to position in the Z-axis direction. Pressure arm units 63 and 65 are attached to the vertical sliders 59 and 61, and the pressure arm units 63 and 65 are driven in the Y-axis direction, that is, the pressure molding direction by pressure drive motors 67 and 69, respectively. The pressure arms 71 and 73 are provided. The tips of the pressure arms 71 and 73 are rotatable about the Y-axis by a rotation shaft (not shown), and pressure molding tools 75 and 77 are replaceably attached to the tips of the arms. It is like this.

A tool stocker 79 in which various pressure forming tools are stored in a tool magazine type of a machining center and an automatic tool changing device 81 are provided on both left and right sides of the frame 1. Automatic tool changer 81
Is configured to automatically replace the pressure forming processing tools 75, 77 at the ends of the arms of the left and right pressure forming processing robots 47, 49 with those stored in the tool stocker 79.

According to the above-mentioned structure, the workpiece holding / conveying member 27 is guided by the ceiling guide rails 25 to position and move in the X-axis direction while holding the plate material W which is the workpiece in a vertical posture. As a result, the plate material W is positioned and arranged in the X-axis direction with respect to laser processing or pressure molding processing.

With the plate material W positioned and arranged in the X-axis direction for laser processing, the carriage 35 is guided by the Y-axis guide rail 33 for laser processing to perform positioning movement in the Y-axis direction, and the vertical slider 37. By positioning and moving in the Z-axis direction and irradiating the plate surface of the plate material W with the laser beam from the laser processing head 39, laser processing is performed at predetermined positions in the X-axis direction and the Z-axis direction of the plate material W.

The function of moving the laser processing head 39 by the carriage 35 in the Y-axis direction is as follows.
In addition to adjusting the gap between the processed plate surface of the plate material W and the plate material 9, the laser processing is provided so that the laser processing can be performed on either side of the plate material W.

With the plate material W positioned and arranged in the X-axis direction for pressure forming, the Z-axis servomotors 55, 57 of the left and right pressure forming robots 47, 49 are synchronously driven to move up and down. The sliders 59 and 61 are positioned and moved in the same Z-axis direction, and the pressurizing drive motor 6 is moved.
The pressing arms 71 and 73 are driven by the plates 7 and 69 so as to approach each other from both sides of the plate W so that the pressing arms 71 and 73 are attached to the tips of the pressing arms 71 and 73. , 77, drilling as shown in FIG. 3 (a), embossing as shown in FIG. 3 (b), bending as shown in FIGS. 3 (c) and (d). The pressure forming process such as the lance process is performed at a predetermined position in the X-axis direction and the Z-axis direction of the plate material W.

In the above, the present invention has been described in detail with respect to a specific embodiment, but the present invention is not limited to this, and various embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art.

[0030]

As can be understood from the above description, according to the three-dimensional plate material composite processing apparatus of the present invention, the laser processing means including the laser processing head for the plate material held by the workpiece holding and conveying member. Laser machining is performed by the machine, and press molding is performed by a pair of left and right pressure molding robots. In each of these machining, the workpiece (plate material) is processed.
Is moved by the workpiece holding and conveying member in the direction of the conveying path (X-axis direction), so that the laser processing means and the pair of left and right press forming robots do not have a positioning movement function in the X-axis direction. The laser processing means and the pair of pressure forming robots may be used for a total of three Xs.
The axial drive shaft is replaced with one X-axis drive shaft of the workpiece holding and transporting member, eliminating the need for an axis drive mechanism and an axis control device for two subtracting axes, and the X axis of the left and right press forming robots. There is also no need for mutual alignment control in the direction.

Since there is no driving mechanism in the X-axis direction on the processing means side, it is easy to secure high rigidity especially in a pressure forming robot that performs pressure processing, and the X-axis of the workpiece holding and conveying member can be easily secured. The moving load in the direction is generally smaller than that of the pressure forming robot in which the weight of the workpiece is mounted so that various tools can be exchanged.
The axial servo in the axial direction can be smaller than that in the case where it is provided in the press forming robot.

With respect to the laser processing means as well, the problem of frame bending due to movement in the X-axis direction does not occur, and high-precision laser processing can be performed. Moreover, since there is no movement in the X-axis direction, laser beam light is emitted. The change in the laser processing ability due to the change of the axis path is reduced.

Since the laser processing means and the press forming robot are arranged so as to be offset from each other in the X-axis direction, the two do not interfere with each other, and the laser processing position and the press forming position can be set. It suffices to perform offsetting according to a prescribed value that is uniquely determined in advance by the amount of deviation between the two, so there is no need to perform complicated interference checking.

As a result, a system that does not require complicated NC control software such as synchronization control between axes and interference check can be obtained.

Further, since the conveyance guide of the workpiece holding and conveying member is constructed of the ceiling rail type, residual materials, chips and the like due to machining do not drop and adhere to the conveyance guide of the workpiece holding and conveying member. Positioning movement of the object holding and conveying member in the X-axis direction can be performed safely and reliably without being hindered by residual materials, chips, etc. due to processing.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a three-dimensional plate material composite processing apparatus according to the present invention.

FIG. 2 is a longitudinal sectional view showing an embodiment of a three-dimensional plate material composite processing apparatus according to the present invention.

3 (a) to 3 (d) are perspective views showing examples of press forming processing by a pressure forming processing robot.

FIG. 4 is a perspective view showing an example of a three-dimensional processed plate material product.

[Explanation of symbols]

 1 Frame 25 Ceiling Guide Rail 27 Workpiece Holding and Transport Member 33 Laser Processing Y-Axis Guide Rail 35 Carriage 37 Vertical Slider 39 Laser Processing Head 47, 49 Pressure Forming Robot 59, 61 Vertical Slider 63, 65 Pressure arm unit 71, 73 Pressure arm 75, 77 Pressure molding processing tool 79 Exchange tool stocker 81 Automatic tool exchange device

Claims (3)

[Claims] 1. A workpiece holding and conveying means capable of detachably holding a plate material, which is a workpiece, in a vertical posture, and positioning and moving it along a conveying path extending along one axis, and the workpiece holding and conveying means. A laser processing head having a laser processing head facing the plate surface of the plate material held by the means, and performing laser processing on the plate material held by the workpiece holding and conveying means; and the workpiece holding and conveying means. A pair of pressurizers, which are respectively arranged on both sides of the conveyance path, face each other, and have tools exchangeably attached to the arm tips, and press-form the plate material held by the workpiece holding and conveying means. A forming machine robot, and a three-dimensional plate material composite processing apparatus, characterized by comprising: 2. The laser processing means and the pressure forming processing robot are arranged so as to be offset from each other in the direction of the conveyance path of the workpiece holding and conveying means. Three-dimensional plate material composite processing equipment. 3. The workpiece holding and conveying means is configured such that the conveying guide is of a ceiling rail type, and a workpiece holder that detachably holds a plate material that is a workpiece in a vertical posture is suspended and attached from the conveying guide. The three-dimensional plate material composite processing apparatus according to claim 1 or 2, characterized in that.