JPH0478366B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a multi-purpose processing machine for plate materials equipped with a laser processing head and a press processing head.

[Conventional technology]

Conventional multi-tasking machines used crank press type press processing heads for high performance.
A flywheel for driving the crankshaft, a clutch connected to the flywheel, a brake, a motor, etc. must also be mounted on the frame, which tends to make the press working head large-scale, and the crankshaft Start/stop control was also complicated. Regarding the relationship between punches and dies, so-called turret punch press machines, in which a large number of punch and die sets are arranged on the same circumference of a disc turret, support a large number of tool sets in a smooth and freely movable manner. Moreover, since it has to be in a precise and fixed position when brought under the action of the pressing means, the device tends to be large and the control is complicated.

On the other hand, as the performance of the laser processing head improves, the number of types of parts that need to be machined on the press processing head side tends to decrease.In particular, the problem with processing on the laser processing head side is the so-called piercing hole (which is the starting point for cutting). The problem was that it took a relatively long time to make a hole (through the plate material) depending on the laser irradiation.

[Problem that the invention seeks to solve]

Therefore, the inventor of this invention focused on the above-mentioned circumstances, and found that if only the processing that would be disadvantageous when performed on the laser processing head side is performed on the press processing head side, the structure of the press processing head can be made relatively simple. After realizing this, they succeeded in developing a multi-tasking machine with a well-balanced combination of a laser processing head and a press processing head.

[Means for solving problems]

The multi-tasking machine proposed by this invention is provided with a ram member that is driven up and down in the vertical direction and rotated around the vertical axis by an indexing device, and is arranged on the same circumference around the ram member. A plurality of punch tools are provided, an engaging portion is formed on the ram member, each of the punch tools is provided with an engaged portion corresponding to the engaging portion, and the engaging portion and the engaged portion are connected to each other. is formed into a fitting structure consisting of a combination of concave portions and convex portions to constitute a press working head, and the press working head and laser processing head are mounted, and a hydraulic cylinder is employed as a drive source for vertical movement of the ram member. This is what I did.

〔Example〕

7 and 8 are an overall plan view and a side view, respectively, of a multi-tasking machine equipped with a punch processing head 1 and a laser processing head 2 according to the present invention.
A plate moving table device 3, the laser processing head 2, the punching head 1, and the laser processing head 2 are mounted on the overall frame having a C-shape in side view.
A laser oscillator 4 for use, an NC device 5, a control device 6 for the entire device, etc. are mounted together.

The plate material moving table device 3 is integrated with left and right tables 7 and 8 that are movable along the Y direction in the figure, a fixed table 9 between the left and right tables 7 and 8, and the left and right tables 7 and 8. It consists of a carriage 11 that moves in the Y direction, and a work holder 12 that is mounted on the carriage 11 and moves along the X direction in the figure. ，
8 and 9 in a horizontal plane.

Reference numeral 13 designates an idling ball that smoothly moves the plate workpiece W on the fixed table 9, and 14 designates an idling roller 14 that similarly facilitates the movement of the workpiece on the left and right tables 7 and 8.

A laser beam from the laser oscillator 4 is guided to the laser processing head 2, and the beam is directed vertically downward and irradiated at right angles to the surface of the plate on the table.
is constructed as follows according to this invention.

That is, as shown in FIGS. 1 to 3, the punch processing head 1 of this embodiment has a total of eight punch tools 15 provided at the upper front end of the frame, and one punch tool for every four punch tools 15. A total of 2
It consists of a base pressing device 16 and a total of eight die tools 17 corresponding to the punch tool 15 provided on the fixed table 9.
6 is a hydraulic cylinder 1 installed upright on the frame.
8, a shaft-shaped ram member 21 rotatably connected to the end of the rod 20 of the hydraulic cylinder 18 via a coupling 19, and an indexing device 22 for rotating the ram member 21.
The central axis of the ram member 21 is located on the center of the four punch tools 15. In other words, the four punch tools 15 are arranged on the same circumference around the ram member 21. and the ram member 2
The lower end of the punch tool 15 has a shape that is almost the same as the outer shape of the upper flange part 15a of the punch tool 15, and depending on the rotation of the ram member 21, the flange part 15a passes through without engaging with the flange part 15a. A U-shaped recess 21a is formed which engages with the flange portion 15a upon vertical movement.

23 is a bushing material that supports the ram member 21 in a rotatable and vertically movable manner;
The circular flange portion 21b at the upper end is the coupling ring 1.
It is engaged with the engaging portion in 9 and is rotatably connected.

Further, a spline-shaped gear 21c is formed on the upper part of the ram member 21, and the gear 21c portion is a large-diameter idler gear 2 provided on the frame F.
4. It is meshed and connected to a pinion gear 27 on the output shaft of an index motor 26 via a small-diameter idler gear 25, and by rotating the index motor 26 by an appropriate angle, the ram member 21 can be rotated.
It can be rotated in 90 degree increments.

In other words, the index motor 26 and the idler gears 24, 25 also operate the index device 2.
2.

The large-diameter idler gear 24 meshes with the left and right ram members 21 (FIG. 2), and by rotating one index motor 26, both ram members 21 are rotated.

An annular recess 20a and a flange portion 20b at the uppermost end are formed in the upper part of the rod 20 that penetrates the hydraulic cylinder 18, and the recess 20a has an engaging member that is driven forward and backward by the air cylinder 28 from the side. Stop plate 29
is thrust into engagement to prevent the rod 20 from falling when the hydraulic cylinder 18 is not in operation (that is, while punching is not being performed). Neighborhood switches 31, 32,
It is set up facing 33.

That is, as shown in FIG. 3, the bracket 34 on the frame has the highest position (solid line) of the rod 20 of the hydraulic cylinder 18, the lowest position (two-dot chain line), and the intermediate position (one-dot chain line). Nearby switches 31, 32, and 33 are provided at heights corresponding to the positions of the rods 20, that is, the positions of the punch tool 15 via the ram member 21, but the intermediate switches 31, 32, and The switch 33 in the vicinity of the position indicates that the punch tool 15 is the plate material W with the maximum thickness.
After punching out, the height position is set at such a height that it completely comes out of the plate W when it rises again, and the signal from the nearby switch 33 is transmitted to the moving table device 3.
By setting the start signal to
It is possible to start moving the plate material as early as possible without causing damage to the machine even if the plate material is moved, thereby shortening the machining cycle time.

35 is an elongated hole drilled in the bracket 34, and by adjusting a screw (not shown), each neighboring switch 31, 3 is connected.
2,33 height can be adjusted.

Further, 36 is a fall prevention device for the punch tool 15, and a slide key 37, which is always urged upward by a spring, is inserted into a key groove 15b on the side surface of the punch tool 15.

Next, the die tool 17 will be explained. As shown in FIGS. 4 to 6, the die tool 17 is fixed on one cartridge 38 for every four die tools 17, and a total of two cartridges 38 are fixed on the die tool 17. 38 is fastened to the punching head position of the fixed table 9.

One side of each cartridge 38 has a slope 3.
The die tool 17 and the cartridge 38 are fixed on the table 9 by engaging a tightening lever 42 which is formed in a shape 8a and is rotated around a support shaft 41 by a single cylinder 39 on the slope 38a. By releasing the fastening lever 42 (solid line in FIG. 5), the die tool 17 can be removed from the table 9 together with the cartridge 38 (dashed line in FIG. 5).

43 is a stop plate fixed to the frame F that regulates the other side of the cartridge 38; 44 is a support shaft;
Bracket 1, 45 each tightened die tool 17
This is a cylindrical slag chute installed below the position.

Also, around the die tool 17, there are free rotating ball devices 46, 47, 48 that move up and down as shown below.
is provided.

That is, as shown in FIGS. 4 and 6, the free-rotating ball device 46 includes a cylindrical member 51 that is integrated with the cartridge 38, and a cylindrical portion 52a at the base end of the cylindrical member 51 that passes through the inside of the cylindrical member 51. It consists of a ball housing member 52 that is supported so as to be vertically movable, and a ball 53 that is freely rotatably supported within the housing member 52, and the lower end of the cylindrical portion 52a is formed in the shape of a flange 52b. The ball 53 is normally urged downward by a spring 54 interposed between the cylindrical member 51 and the top of the ball 53 to be at a position lower than the upper surface of the die tool 17.
A lifting device 55 as described below is provided below the free-rotating ball device 46 to lift the top of the ball 53 to a higher position than the upper surface of the die tool 17.

That is, a connecting plate 58 (FIG. 4) having a T-shape in plan view is fixed to a rod 57 of a cylinder 56 fixed perpendicularly to the frame F, and a lifting member 59 is fixed to one end 58c of the connecting plate 58. The lifting member 59 passes through a through hole 61 on the lower surface of the frame and faces the lower end of the cylindrical portion 52a, so that the housing member 52 of the idling ball device 46 can be raised and lowered by the expansion and contraction of the cylinder 56. It's summery.

In this example, the lifting member 59 is a hollow cylindrical body, an air pipe 62 is connected to the member 59, and air press-ined from the air pipe 62 is supplied to the sixth cylinder.
In the illustrated state, the air is ejected upward from the periphery of the ball 53 through the housing member 52 of the free-rotating ball device 46, and the air is injected into and out of the air pipe 62 through the connection. Board 58
When the cylinder 56 is extended and the ball 53 is lifted (as shown in the sixth figure), the mega valve 64 As the air enters, air blows out from around the ball 53 as described above, the cylinder 56 contracts, and the ball 53
When the height of the die tool 17 becomes lower than the height of the die tool 17, the mega valve 64 is turned off (dashed line in FIG. 6), the supply to the air piping is cut off, and air jetting is stopped.

Note that 65 is a urethane material that prevents air from leaking from the contact surface between the lifting member 59 and the housing member 52.

Further, 66 is a guide bearing at the tip of the rod 57 of the cylinder 56, and the other two tips 58a and 58b of the connecting plate 58 are also provided with lifting members connected to air piping similar to those described above. It is adapted to lift other free-rotating ball devices 47, 48 attached to the ball.

These free-rotating ball devices 47 and 48 also have the same structure as the free-rotating ball device 46 described above.

Since the multi-tasking machine of this embodiment has the above-mentioned structure, the movable table device 3 is operated to move the laser processing head 2 to any desired location on the plate workpiece W.
Or bring it to the punching head 1, for example, first punch a piercing hole (small hole) that will be the beginning of laser cutting with the punching head 1 (the piercing hole at this time has a small diameter, so
Even with the thrust of the hydraulic cylinder 18 (5 tons in the above example), the hole can be drilled sufficiently quickly.) Then, starting with the piercing hole, the laser processing head 1 starts cutting into an arbitrary shape. The selection of the punch tool 15 of the punch processing head 1 and punching using the selected punch tool 15 are performed in the following manner.

That is, after rotating the index motor 26 to rotate the ram member 21 and bringing the desired tool into engagement with the ram member 21, one of the left and right hydraulic cylinders 18 is extended, and one of the eight Only the desired punch tool 15 is punched downward, and as soon as punching is completed, the hydraulic cylinder 18 is contracted to lift the tool 15 and pull it out from the plate workpiece W.

At this time, the completion of punching and pulling out of the punch tool 15 can be detected by the nearby switches 32 and 33, and the processing position on the next plate workpiece W is immediately brought to the punching position by the drawing completion signal. The operation of the moving table device 3 to be started is as described above.

In addition, in the processing machine of this embodiment, the die tool 17
Since the surrounding free-rotating ball devices 46, 47, and 48 are configured as described above, the movable table device 3
When the workpiece W is moved over the die tool 17 by operating the die tool 17, the ball 53 is raised (the sixth
(Fig.), the lower surface of the plate workpiece W is supported extremely smoothly by the ball 53 and the ejected air, and there is no damage caused by sliding contact with the upper surface of the die tool 17, etc., and there is no gap between the ball 53 and the housing member 52. When the plate workpiece W is stopped for punching, the ball 53 descends and the lower surface of the plate workpiece W comes into close contact with the upper surface of the die tool 17.

At this time, the blowing of air from around the ball 53 is also stopped, as described above, so that energy can be saved.

〔Effect of the invention〕

As is clear from the above explanation, in the multitasking machine according to the present invention, the driving source for the punching head is a hydraulic cylinder, so the structure inside the frame is simple, the whole can be made compact, and control is also easy. It is. Furthermore, the press apparatus according to the present invention allows a plurality of tool sets to be arranged compactly, and is therefore extremely suitable as a combined processing machine with laser processing.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional side view of the punching head portion of a multi-tasking machine according to the present invention, Fig. 2 is a sectional view taken along the line - - of Fig. 1, Fig. 3 is a side view showing the upper part of the hydraulic cylinder, and Fig. 4. is a plan view of the die section, 5th
6 is a sectional view taken along the line -- of FIG. 4, FIG. 7 is a plan view of the entire multitasking machine, and FIG. 8 is a side view of the same. 1...Punching head, 2...Laser processing head, 15...Punching tool, 18...Hydraulic cylinder, W...Plate material.

Claims (1)

[Claims] 1. A ram member is provided which is driven up and down along the vertical direction and rotated around the vertical axis by an indexing device, and a plurality of punch tools are arranged on the same circumference with this ram member as the center, An engaging portion is formed on the ram member, and each of the punch tools is provided with an engaged portion corresponding to the engaging portion, and the engaging portion and the engaged portion are formed of a combination of a concave portion and a convex portion. A composite of plate materials, characterized in that they are formed into a fitting structure to constitute a press working head, the press working head and the laser working head are mounted, and a hydraulic cylinder is used as a drive source for vertical movement of the ram member. Processing machine.