JPH0246973A - Work table for cutter - Google Patents

Abstract

PURPOSE:To facilitate mounting and replacing of metallic strips by erecting and supporting the strips with one side edge positioned as a top end face on crimping members and imposing a plate material for cutting to the top end faces of the strips and erecting and supporting the strips by deflecting between >=2 crimping members. CONSTITUTION:The work table 1 to be imposed with the plate material 15 to be worked consists of the construction combined with beam members 22-33 and supporting members SM and can erect and support the supporting members SM simply by alternately inserting the members into grooves of the beam materials 22, etc. Since the supporting members SM are erected and supported by deflecting the members to a wave shape, the rigidity of the supporting members SM is increased by their own spring force. The secure imposing and supporting of the iron plate 15 are possible even if thin strips are used as the supporting members. The handling of the supporting members SM is facilitated in this way and the workability is enhanced in the production of the work table.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a work table for a cutting device on which a plate for cutting is placed on the upper end surface of a strip.

[Prior art] Conventional gas cutting equipment A plate used with a cutting device such as a plasma cutting device or a laser cutting device As a work table on which a plate material for cutting is placed, strip plates are arranged side by side with their width direction as the top and bottom direction. However, a device is known in which the upper end surface forms a mounting surface for a plate material.

In order to keep the strips standing firmly, for example, there are two sets of strips arranged vertically and horizontally in the shape of parallel grids. It is known that the plate material is further welded and fixed to the crossbeam to form a mounting surface for the plate material.

Using this conventional work table, a fusing type cutting device,
For example, when cutting a plate using a plasma cutting device, a plasma stream emitted from a plasma torch passes through the plate and reaches the strip. Therefore, the strip plate is also burned out and damaged by the plasma torch. Therefore, when cutting is repeatedly performed, the mounting surface of this strip plate becomes deformed and becomes unable to maintain horizontality or support the plate material on average, so that it becomes necessary to replace it.

[Problems to be Solved by the Invention] However, with conventional work tables, the vertical and horizontal girders are welded to prevent them from wobbling, so they cannot be removed without melting the strips. When replacing a single strip that has been damaged by
Intersecting girder members also had to be fused and cut, making it difficult to replace only a portion of the strips and requiring the troublesome effort of replacing all the strips.Also, when the strips are thin, (If the span between the intersections of parallel girders is long, the strips may buckle due to the weight of the plates placed on them. For this reason, the strips may be placed closely together and the intersections may It was necessary to shorten the span between the plates.As a result, when manufacturing the worktable, the number of parts increased and manufacturing was complicated.In addition, there was the problem of increased weight of the worktable. When feeding by sliding horizontally on the table mounting surface 1: There was a problem that the plate material easily slipped along the longitudinal direction of the strip and was easily displaced in a specific direction.For this reason, depending on the work situation, In order to solve the problem of poor workability due to the inability to feed plates from any direction, we have developed a method of using strips bent in a serrated pattern with a spacing of 1 mm between parallel girders. A work table that is supported upright is known, but in this case (upper) it was much more difficult to install and replace the strip than when the strip was in the shape of a grid. The work table for a cutting device of the present invention (above) has the problem of being complicated to manufacture and taking up a lot of space to store. shall be.

[Means for Solving the Problems] A work table for a cutting device of the present invention (a metal strip plate is erected and supported by a clamping member with one side edge as an upper end surface, and the strip plate A work table for a cutting device on which a plate material for cutting is placed on the upper end surface, characterized in that the strip plate is flexed and supported upright between at least two or more clamping members. .

[Function] In the work table for a cutting device of the present invention, since the band plate made of a friendly metal is flexed and supported upright between at least two or more clamping members, the band plate (and its own elasticity) Due to the deformation, it is firmly in contact with the holding member. Therefore,
There is no need to fix it by welding or the like.

Further, since the strip plate is arranged so that its rigidity is increased by bending, a plate having a small thickness may be used.

Furthermore, since the strip plate is bent in a wave-like manner, it has no directionality with respect to the plate material that is slid on its upper end surface.

[Example] In order to further clarify the structure and operation of the present invention described above, 1: Next, a duct material cutting device will be described as a preferred embodiment to which the work table for a cutting device of the present invention is applied. Fig. 1 is a perspective view showing a schematic configuration of a duct material cutting device as an embodiment of the present invention, Fig. 2 is a perspective view showing the structure of a work table, and Fig. 3 is a perspective view showing details of the processing head. The figure is a perspective view showing a moving mechanism for the processing head.

As shown in the figure, this duct material cutting device (Table 1) includes a work table 1 of approximately 2 meters x 4 meters, a portal frame 3 that is conveyed on the work table 1 in the X-axis direction (longitudinal direction), and a portal The processing head 5 is moved on the mold frame 3 in the Y-axis direction (the width direction of the plate material). A stepping motor (hereinafter referred to as X
By driving the shaft motor (referred to as a shaft motor) 10, it is possible to convey the material to a desired position. In addition, cables, air tubes, etc. that transmit power to the X-axis motor] 0 and the processing head 5 (upper It is housed in a cable carrier 14 laid along the cable carrier.

As shown in FIG. 1, a thin iron plate 151 on which cutting is performed, etc. Although it is simply placed on the work table 1, it is only slightly displaced due to its own weight and static frictional force, and it does not move during processing. The required accuracy can be obtained.Work table 1
(As shown in Fig. 2, the beams 22 to 33 are fitted across the outer casing 20 in the transverse direction, and the beams 22 to 33 are fitted into grooves carved at equal intervals on the upper surface of the beams 22 to 33.) Figure 2 (above) To facilitate understanding, only the front half of the support member SM is shown fitted.

Support member SM[i is a long iron plate with a width of approximately 50 mm, and is fitted into the grooves of the beams 22 to 33 alternately so that it stands on its own. As a result, the support member SM is bent and becomes wavy, increasing its own rigidity and providing sufficient support for the iron plate 5 to be processed. In addition, beam material 2
2 to 33 (top) are inserted and fixed between the fitting parts 35 and 36 provided inside the external casing 20. Therefore, the supporting member SM and the beam members 22 to 3 forming the cage
3 is extremely easy to assemble and remove.

Next, the configuration of the processing head 5 will be explained.

As shown in FIG. 3, the processing head 5 is assembled based on a movable support member 50, and a stepping motor (hereinafter referred to as Y-axis motor) 51 for movement is located approximately in the center, and a reduction gear 52 is connected to the processing head 5. A marking head 55 that holds an oil-based pen 54 as a writing member, and
Cutting head 60 holding plasma torch 56
and is provided.

Marking head 55 (top) A base member 62 fixed to the movable support member 50, a linear air cylinder 65 sandwiched and fixed to the fixed member 63, and an elevating member 67 fixed to the spindle tip of the air cylinder 65. Lifting member 6
A gripping member 72 that is slidably attached to two bottles 68 and 69 erected on the bottle 7 and grips and fixes the oil-based pen 54 in the am part 70,
The solenoid 77 is raised against the bias of springs 74 and 75 fitted therein. Therefore, when the air cylinder 65 is driven and the elevating member 67 is lowered, the tip of the oil-based pen 54 of the marking head 55 (the surface of the iron plate 150 for machining) is brought into contact with the In this state, the entire machining head 5 moves (i) As it moves, a line is drawn on the surface of the iron plate 15,
In a section where it is not necessary to draw a line, the solenoid 77 is energized and the oil pen 54 is raised together with the gripping member 72.

On the other hand, the cutting head 60 LL is composed of a rectangular air cylinder 80 and a torch holding part 82 that is fixed to a movable part of the air cylinder 80 and is moved up and down. Five free bears 84 are provided on the lower surface of the torch holder 82, which smoothly and strongly press the iron plate 15 to be processed, allowing the plasma torch 56 to cut the iron plate 56 while maintaining a constant distance between the iron plate 15 and the tip of the torch. The plasma torch 56 (not shown in FIG. 3) is supplied with oxygen and power from a plasma unit (not shown in FIG. This is a well-known method that ejects a high-temperature plasma stream.

The processing head 5 described above is assembled to the movable support member 50, and this movable support member 501t,
It is slidably supported by a guide rail 86. The movable support member 50 has bearing assemblies extending in the longitudinal direction on the back surface (not shown), and the bearing assemblies in two rows, upper and lower,
It is configured to fit into upper and lower grooves 87 and 88 of the guide rail 86.

FIG. 4 is a perspective view of the movable support member 50 seen from the back side.
A toothed pulley 91 connected to the Y-axis motor 51 via a speed reducer 52 and two free pulleys 92 and 93 are attached. This toothed pulley 9] (upper timing belt 95) is engaged with the free pulley 92.
．． 93LL Timing belt 95 to toothed pulley 9
1 with a predetermined circumferential length.

The timing belt 95LL is fixed to a fixing member 97 and a mounting member 98 housed in the legs on both sides of the gate-shaped frame 3, and the mounting member 98 is further fixed to the fixing member 100 by a spring 99. It is constantly stretched under strong tension from a spring 99. Therefore, when the Y-axis motor 51 is rotated, the toothed pulley 91 rotates, and the entire movable support member 50 also moves smoothly in the Y-axis direction without causing backlash or the like.

The mechanism for conveying the ugly gate-shaped frame 3 in the X-axis direction has almost the same configuration as the configuration for the Y-axis described above, and by rotating the X-axis motor 10, the timing belt and the toothed booby By this combination, the gate-shaped frame 3 is transported.

Next, the X-axis motor 10. The configuration and operation of a control device that controls the Y-axis motor 51 and the processing head 5 or a plasma unit that supplies oxygen and the like for the plasma torch 56 will be described. Figure 5 1 Friend This control device 11
FIG. 2 is a block diagram showing a schematic configuration of 0.

As shown in the figure 1:, control device 11011 well-known CP
UIII, ROM112. A floppy disk controller (configured as a so-called arithmetic and logic operation circuit) from a RAM 114 etc. is connected to the floppy disk controller via a path 115.
FCC) 117. Display control circuit] 20
．． A keyboard input port 121 has an actuator drive circuit 123 and a motor control circuit 125.

The FDC 117 is a controller that drives and controls the external floppy disk drive 130, and in this embodiment it is a floppy disk that stores programs for generating developed diagrams according to the duct shape and basic data for these calculations. Controls reading and writing data from.

Display control circuit 120 (display device)
32, and is a circuit that displays developed views, necessary messages, etc. based on commands from the CPU 111. Keyboard input circuit 12111 is connected to the keyboard] 35 and performs processing for passing commands and data input from the keyboard 135 to the CPU 11.

Actuator drive circuit 123 fL Air cylinder 6 of marking head 55 provided in processing head 5
5. It is connected to the solenoid 77, the air cylinder 80 of the cutting head 6o, and the plasma unit 140. Therefore, these air cylinders, etc. can be turned on and off freely via the actuator drive circuit 123.The plasma unit 140 is connected to a three-phase AC power source, a near compressor, and an oxygen cylinder (not shown). 141, and generates high-temperature plasma at the tip of the plasma torch 56 in response to commands from the control device 110.

Motor control circuit 1251 is connected to the aforementioned X-axis motor 10 and Y-axis motor 51 via stepping motor drivers 143 and 145.

Therefore, the two-shaft motors 10 and 51 can be freely controlled via the CPU 111 and the motor control circuit 125 to control the machining head 5 to a desired position. low
In this embodiment, stepping motors are used for both the &

Next, in the duct material cutting apparatus having the above-described configuration, the processing performed by the control device 110 when processing the steel plate 1.5 to be processed for manufacturing a duct will be described. FIG. 6 is a flowchart showing a duct manufacturing processing routine executed by the control device 10. FIG.

When this routine is started, first in step 200,
Duct shape input processing is performed. Duct shape input processing (
This is the process of inputting the shape of the duct to be manufactured.The shape can be input directly from the keyboard 35, or input using a digitizer or the like on another control device equipped with CAD functions. The duct shape stored in the duct shape may be inputted by controlling and reading the FDC 117. Once the duct shape has been input in this way, a process of creating a developed diagram and a process of assigning a set code to each developed part are performed (step 210).

Developed drawing creation process (above) This process creates a developed drawing with the highest yield based on the size of the steel plate 15 to be processed and the shape of the duct to be manufactured, and is called graphic processing.The above graphic processing The arrangement of the duct members cut out from the iron plate 15 is illustrated in Fig. 7.As shown in the figure, two sets of duct members are developed and cut on the iron plate 15 with the highest yield.

On the other hand, there is a process of assigning a combination code to each part (in the case of an upper corner duct, it is a process of assigning a series of codes to the parts that are usually expanded into four pieces that make up this duct, for example, each part that makes up the first duct As shown in FIG. 8, there is "A" as the set number information 201c drawn near the base of the duct member 15c.
-1" is assigned, and 15X20" and "Original 20X15" are assigned as original sale information 202c.

Here, 15X20'' and 20X15'' represent the dimensions of the openings at the tip and base when assembled as a duct.

Furthermore, it can be seen that "left" is assigned as the vertical and horizontal information 203c. It can be seen that the duct member +5c forms the left side of a set of duct members that are assigned the set number information 201C "A-1".

Furthermore, "W" is given as the connection information 204C. As shown in FIG. 9, this connection information 204C indicates that when assembling the duct as a duct, the joint fold 15w at the connection with the adjacent duct members 5a and 15b is to be folded double, while the duct member 15a is Connection information 20 as shown in FIG.
"S" is added as 4a to indicate that the tag 15S is single folded.

As mentioned above, the duct member 15c has the set number information 201c,
Original sales information 202 c, top, bottom, left and right information 203 c
.

A set code 200c consisting of connection information 204c is given.

Here, in this embodiment, the surface that will become the inner surface when assembled as a duct in the developed figure processing is rubbed so that it becomes the upper surface of the iron plate 15. Further, a group code 200c is drawn on the upper surface of the base of the duct member 15c. For this reason, the set code 200c is drawn on the inner surface of the base of the duct member 15c and functions as both internal and external information as well as original sales information.

The next set of duct members also includes a set number 200h consisting of set number information 201h "B-1" as drawn on the duct member 15h and other information similar to that described for the duct member 15c described above. will be granted.

In this embodiment, the assembly number information 201c and 201h also serve as connection information, and when assembling the duct (upper
A-1", B-1" and "C-1" (not shown),
By connecting in alphabetical order such as "D-1", the trouble of checking drawings can be saved and the duct can be easily hung.

In addition, for example, each member constituting the first duct is given a code from "A-1" to "A-4" in the order of the top, bottom, left and right of the duct.
"B-1" or "B" for each part that makes up the next duct.
-4" code, etc., and add program number information,
It may also represent the top, bottom, left and right information at the same time.

After making the above preparations, the actuator drive circuit 12
3, the air cylinder 65 is turned on and the marking head 55 of the processing head 5 is lowered (step 2).
20). As a result, the oil-based pen 54 descends and comes into contact with the pen tip (metallic plate 15).Therefore, a process of drawing a set code is performed (step 230).This process (while turning on and off the upper solenoid 77 This is a process in which the head 5 is moved in the x-trajectory Y-axis direction, and the combination code given in step 210 is drawn at position 1, which corresponds to the deployed position of each member constituting the duct.

When the drawing of the set code is completed, it is determined whether or not to cut the iron plate 15 (step 24o), and if the iron plate 15 is to be cut, the process moves to step 250 and subsequent steps.

First, the air cylinder 65 is turned off to raise the marking head 55 (step 25o), and then the air cylinder 8o is turned on to lower the cutting head 60 (step 260).

Thereafter, the plasma unit 140 is controlled via the actuator drive circuit 123, and the motor control circuit 1
25 to the X-axis motor 10. The Y-axis motor 51 is driven to drive the machining head 5 two-dimensionally to cut the iron plate 15 (step 270). At this time, cutting is performed according to the development diagram obtained in step 210.

When the cutting process is completed in this way, the air cylinder 80
is turned off, the cutting head 60 is raised (step 280), and the duct manufacturing process is completed.
The program exits to "rEND" and ends this routine.

On the other hand, if it is determined in step 240 that the iron plate 15 is not to be cut, for example, if the iron plate 15 is coated with resin, the process moves to step 300, where an offset is calculated. (
As is clear from Fig. 3 above, 1: The center position of the oil-based pen 54 and the center position of the plasma torch 56 do not match, and there is an offset in both the X-trajectory and Y-axis directions. , the data created for cutting with the oil pen 54,
This is a process to correct for writing by. After the correction of the development view data of each member constituting the duct is completed, shape writing processing is subsequently performed (step 310). Shape writing process (tomo) This process is the same as the cutting process (step 270) except that the marking head 55 is used instead of the cutting head 60, and the processing head 5 (moves over the iron plate 15. Instead of cutting with the plasma torch 56, cutting lines are drawn with an oil marker 54.When the shapes of all the members constituting the duct have been written, the air cylinder 65 is turned off and the marking head is turned off. 55 (step 320), and exits to "rEND" to end this routine.

In this way, when the cutting or writing of the external shape and the set code on the iron plate 15 are completed and the duct constituent members are collected, the next iron plate for cutting is supplied.

For example, when feeding an iron plate by sliding it horizontally (above), the iron plate is slid on the mounting surface formed by the upper end surface of the support member SM of the work table 1. At this time, the support member SM is Since the iron plate is vertically supported in a wave-like manner and does not have a specific direction, the iron plate can be slid onto the work table 1 and supplied without shifting in a specific direction.

As a result, it is only necessary to feed the iron plate 15 from the direction where it is easy to work, and work efficiency can be significantly improved. In addition, the supply direction of the iron plate 15 can be freely selected depending on the layout in the factory, making it easy to realize the optimal factory layout.Special 1: In some cases, a roll of thin plate is used as the duct material. Since there are many cases, the effect of eliminating this directionality is extremely large.

Further, since the support member SM is erected and supported in a wave-like manner, the iron plate 15 is not uneven in a specific direction on the work table 1. As a result, even when writing characters, etc., the oil-based pen 54 in contact with the upper surface of the iron plate 15 does not slip in a specific direction.

Therefore, it is possible to write set codes and outline lines in a good manner. Special feature 1: When writing outlines, the effect of being able to write accurate shapes is tremendous. As a result, it has become possible to perform extremely sophisticated work such as writing the external shape instead of cutting.Also, since it is possible to write the characters of the set code for advanced information without mistakes, it is possible to provide the set code as accurate information. Can be done.

As explained above, in this embodiment, a structure in which the beams 22 to 33 and the support member SM are combined is adopted. They can be supported upright by simply inserting them alternately into the grooves of the members 22 to 33. Therefore, assembly and replacement are extremely easy.Furthermore, since the support members SM are bent in a wave-like manner and supported upright, The support member SM increases its rigidity due to its own elastic force. Therefore, even if an extremely thin strip plate is used as the support member SM, the iron plate 15 can be securely stored and supported. As a result, the support member SM Handling becomes convenient, and the workability in manufacturing the work table can be significantly improved.Workability can also be significantly improved when the support member SM is replaced.

Furthermore, when storing the strip as the supporting member SM, it can be kept face down on the factory floor, etc., and the problem of orientation can be solved. There is no problem of taking up storage space like a board. And it's extremely easy to get spare shingles.

Note that the duct material cutting device described in this example (
Since the assembly code is written at the same time as cutting the duct constituent members from the plate material or writing the external shape, it is possible to save the effort of checking the drawings when arranging the duct constituent members and assembling the duct. In addition, since the rolled thin plate can be continuously slid and fed, the cutting operation can be made more efficient. In such cases, this set of codes becomes even more effective.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments in any way. For example, the present invention may be configured to include a laser or an electrical discharge machining torch instead of a plasma torch, or a configuration that includes a marking head 55 and a cutting torch. A configuration in which the head 60 and the head 60 are installed separately on the gate-shaped frame 3 and the two are moved separately to increase the degree of freedom.Furthermore, a configuration in which the processing head 5 is installed on a multi-jointed arm instead of the portal frame 3, etc. It goes without saying that the invention can be implemented in various ways without departing from the spirit of the invention.

Furthermore, as a result of preventing the oil-based pen 54 from slipping on the iron plate 15, it is now possible to write advanced character information and accurate positional information. It is also possible to further reduce assembly man-hours by providing information on the common plate, rib position, bending information, etc. As an example of this, FIG. 10 shows a developed view of a duct member with rib position information and a duct member with bending position information. The four duct members 15 to 15Q shown in the figure are assembled to form a bent duct 16a as shown in FIG. 11(A).
becomes. Duct member] 52 has group code 200 near the base.
i is added and rib position information 2111 to 2141
is attached.

Knob position information 21]I indicates the position where the rib 23 as shown in FIG. 11(B) is to be formed by folding or pressing. Similarly, the duct member 15j has rib position information 2]] to 214, the duct member 15k has rib position information 211 to 214k, and the duct member 15Q has rib position information 211Q to 214Q.
is attached.

These rib position information indicate mutually related positions, and after performing pressing etc. according to the rib position information 2]]1~2]1Q, when the bent duct 16a is assembled, a continuous Ribs 231 are configured. Other rib position information 212-212Q, 213i-213
Q, 214i to 214Q also have ribs 232,2
33. 234, and the positional relationship of each is determined by graphic processing (
It is calculated in step 210) and attached to the corresponding position.

As a result, the rib inserting work that was conventionally done is greatly simplified, and the assembly man-hours are significantly reduced.

Further, the duct member 15n shown in FIG. 10 is assembled to form a hopper-shaped duct 16b having a circular opening 16c and a square opening 16d as shown in FIG. 11(C).

The duct member 15n is provided with a group code 200n and bending position information 22]n, and by bending the duct member 15n according to the bending position information 221n, a hopper-shaped duct T6b as shown in the figure can be easily formed. be able to. This bending position information 221n is also calculated and provided in the graphic processing (step 210). Also, out of group code 20On, original sales information 20
"IOR" and "original 20X20" are attached as 2n, and it can be seen that the tip is circular and the base is square.

As a result, even a duct 16b having a complicated shape as shown in the figure can be easily assembled.

Further, in the cutting process, the cutting speed may be automatically determined according to the required plate thickness depending on the type of the low-speed duct, high-speed duct, smoke exhaust or other ventilation duct, etc. In addition, in figure processing, it is not necessary to always make the inner and outer surfaces of the developed figure coincide with the same plane, and the inner and outer surfaces may be reversed and cut in order to maximize the yield. It is sufficient to add some kind of symbol such as "," or "gai", and the drawing position of the set symbol may also be other than the base part, and some symbol such as an arrow may be used to represent the original sale. Furthermore, the writing and cutting of the set code or the writing of the outline may be performed for each member.

As described in detail above]: By the work table for the cutting device of the present invention +2 The metal strip is undulated and supported upright, making it easy to attach and remove the strip. As a result, manufacturing and repair of the work table has become extremely easy.Also, since the strips are bent in a wavy manner, the rigidity of the strips themselves is increased. As a result, it has become possible to use thinner plates for the strips.This has the effect of making the strips easier to handle and reducing the weight of the worktable.

Further 1: Since there are no girders running in a specific direction on the mounting surface of the plate material, even if the plate material is slid and fed, the plate material will not shift in the specific direction.

As a result, plates can be fed from any direction depending on workability, factory layout, etc., which greatly contributes to improved workability and optimal factory layout.

In addition, it also has the effect of preventing the placed boards from becoming unevenly corrugated in a particular direction.

[Brief explanation of the drawing]

1 is a perspective view showing a schematic configuration of a duct material cutting device as an embodiment of the present invention. FIG. 2 is a perspective view showing the structure of a work table 1. FIG. 3 is a perspective view showing details of a processing head 5. 4 is a perspective view showing the movement mechanism of the processing head 5. FIG. 5 is a block diagram mainly showing the configuration of the control device 110. FIG. 6 is a flowchart showing the duct manufacturing processing routine performed by the control device 110. FIG. A plane illustrating the duct members expanded by graphic processing and arranged on the iron plate is shown in Fig. 8. A plane of the duct members is exemplified by the group codes assigned. Fig. 9 shows the state assembled as a set of ducts. Figure 10 shows a perspective view of the duct member developed on a steel plate in another example. Figure 11 (A) shows a perspective view of the assembled curved duct. Figure 11 (B) shows a partial cross section showing the shape of the rib. Figure 11 (c) shows a strabismus view of the hopper-shaped duct. 20,000 No. 6 1...Work table 5...Processing head 15...Iron plate 20...External housing 22-33...Beam material SM...Supporting member

Claims (1)

[Claims] 1. A workpiece for a cutting device in which a metal strip is erected and supported by a clamping member with one side edge as the upper end surface, and a plate material for cutting is placed on the upper end surface of the strip. 1. A work table for a cutting device, characterized in that the strip plate is flexed and supported upright between at least two holding members.