KR100416488B1 - A Table Change Device Of A Laser Processing Machine - Google Patents

Abstract

According to the present invention, an upper first table and a lower second table are provided to be spaced apart from each other by a predetermined interval, respectively, and are provided on both sides of the first table and the second table to place the first table and the second table. A pair of channel steels with pins attached to the lower side; Two pairs of first gears each provided on an outer side of the channel-shaped steel and having an eccentric hole into which the pin is fitted; Two pairs of second gears provided at one side of the first gear and engaged with the first gear to drive the first gear and having a driving shaft at one center portion thereof; Two pairs of the first gear and the second gear are respectively supported by the channel fixing blocks provided on both sides, and the driving shafts provided on both sides of the second gear are respectively provided with couplings and connected to the joint shafts. And a drive motor connected to the other side of the second gear. And, the second gear is characterized in that the diameter is smaller than the first gear, the rail is provided on the upper and lower portions of the channel-shaped steel, and the wheels are mounted on the rail at the lower end of the first table and the second table Characterized in that it is provided.

Description

A table change device of a laser processing machine

The present invention relates to a vertical drive device for a laser processing machine table. More particularly, a table is eccentrically fitted to a first gear, and the table is eccentrically fitted to the first gear by driving the first gear to a second gear. It relates to a table exchange device of a laser processing machine that can be driven up and down to replace the table.

In general, laser is widely used in various high-industry industries such as measurement, processing, medicine, communication, information processing, and military use, and has different characteristics according to the type of laser. Among them, lasers used in processing fields such as cutting, drilling, welding, ceramic processing, etc. are scanned with high energy, so special care must be taken when handling because there is a risk of unexpected accidents.

Therefore, laser processing machines have been required to automate all work processes. However, in the conventional laser processing machine, most of the processes are automated, but the work of exchanging the material before and after the processing is only dependent on the manual work.

In addition, when the finished material and the new material to be exchanged are replaced, the nozzle part of the marking head, in which the laser beam is finally focused, is almost in close contact with the processed material, thereby causing a lot of risks such as damaging the nozzle part. Therefore, the work of the workpiece is very cumbersome, which is the main cause of the drastic fall in work efficiency.

As such, in order to solve the unreasonable point in which the industrial material was relyed only on the manual material exchange in the laser processing machine with high industriality, the laser processing machine in which the processing material is automatically exchanged has been developed and used.

Hereinafter, a laser processing machine equipped with a conventional hydraulic device will be described schematically.

1 is a front view of a laser processing machine equipped with a conventional hydraulic apparatus, and FIG. 2 is a side view of a laser processing machine equipped with a conventional hydraulic apparatus.

1 and 2, the table exchange apparatus of the conventional laser processing machine by using the hydraulic cylinder 70 to move the first table 10 and the second table 20 up and down the workpiece material 60 ) Is exchanged between the first table 10 and the second table 20 on which the table is mounted.

The first table 10 and the second table 20 are provided at the upper and lower portions of the channel steel 30 having a 'c' shape, and the channel steel 30 is a pair of the first table ( 10) and the 2nd table 20 are provided in both sides. The rail 40 is provided on the side of the channel steel 30 where the first table 10 and the second table 20 are placed on the channel steel 30, and the first table 10 and the second table ( The wheel 50 is provided at the side 20 so that the first table 10 and the second table 20 can be moved to the processing unit 80 along the rail 40.

The vertical movement of the first table 10 and the second table 20 is performed during machining and replacement of the workpiece 60 placed on the first table 10 and the second table 20. The first table 10 and the second table 20 move up and down to select a replacement position.

At this time, the vertical movement of the first table 10 and the second table 20 is made to the hydraulic cylinder 70, the hydraulic cylinder 70 is provided on the lower side of the channel-shaped steel (30) It works. The hydraulic cylinder 70 is installed in several places to control the multiple hydraulic cylinders 70 at the same time should be the operation of all the hydraulic cylinders 70.

However, when the hydraulic cylinder 70 is aged for a long time, leakage of hydraulic oil occurs, and the operation of each of the hydraulic cylinders 70 is inconsistent, and thus, the hydraulic cylinder needs to be readjusted.

In addition, a number of pipes have to be installed to supply hydraulic oil for driving the hydraulic device, and a number of relays and valves have to be used to control them.

However, the use of a large number of relays and valves has a complicated structure, a high failure rate for leakage of hydraulic oil, and the complicated structure has caused a problem of high maintenance costs.

Therefore, the present invention has been made in view of the above-described conventional problems, the first object of the present invention is provided with a pin on one side of the channel-shaped steel provided with the first table and the second table, the pin is fitted It is to provide a table replacement apparatus for a laser processing machine in which the first table and the second table are moved up and down by rotation of a first gear provided with an eccentric hole.

In addition, a second object of the present invention is to provide a table replacement apparatus for a laser processing machine for varying the gear ratio by using a second gear having a smaller diameter than the first gear, so as to move a large load of material with a small capacity motor. .

In addition, the third object of the present invention is to maintain a trouble-free structure by simplifying the structure with a first gear that is eccentrically fitted with the channel steel, a second gear for rotating the first gear, and a drive motor for driving the second gear. It is an object of the present invention to provide a table exchange device for an easy laser repair machine.

The object of the present invention, the first table of the upper side and the second table of the lower side is provided with a spaced apart up and down each predetermined interval, the channel steel is provided on both sides of the first table and the second table and the In the upper and lower rails are provided, the lower end of the first and second tables are provided in the table exchange apparatus of the laser processing machine is provided with a wheel mounted on the rail,

A pin provided at a lower end of the channel steel;

Two pairs of first gears each provided on an outer side of the channel-shaped steel and having an eccentric hole into which the pin is fitted;

Two pairs of second gears provided at a lower end of the first gear and engaged with the first gear to drive the first gear and having a driving shaft at a central portion thereof;

A channel fixing block rotatably supporting two pairs of the first gear and the second gear;

A joint shaft connected to the driving shafts respectively provided at a center portion of the second gear;

A drive motor is connected to the other side of the drive shaft; is achieved by a table exchange apparatus of a laser processing machine comprising a.

The second gear may be smaller in diameter than the first gear, and the joint of the drive motor and the drive shaft and the joint of the drive shaft and the joint shaft may be connected by a coupling.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.

1 is a front view of a table exchange apparatus of a laser processing machine equipped with a conventional hydraulic apparatus,

Figure 2 is a side view of the table exchange apparatus of the laser processing machine equipped with a conventional hydraulic device,

3 is a front view of a table lowered state of the table exchange apparatus of the laser processing machine according to the present invention;

Figure 3a is a side view of the table lowered table of the laser processing machine according to the present invention,

4 is a front view of a table in a raised state of the table exchange apparatus of the laser processing machine according to the present invention;

Figure 4a is a side view of the table raised state of the table exchange apparatus of the laser processing machine according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: first table 20: second table

30: channel steel 40: rail

50: wheel 60: processed material

70: hydraulic cylinder 80: machining

210: first table 220: second table

230: channel steel 240: rail

250: wheel 300: first gear

310: pin 315: eccentric hole

320: second gear 330: drive shaft

340: coupling 350: joint shaft

360: channel fixing block 400: drive motor

500: machining part 510: table guide rail

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Figure 3 is a front view of the table of the table exchanger of the laser processing machine according to the present invention is lowered, Figure 3a is a side view of the table of the table exchanger of the laser processing machine according to the present invention is lowered, Figure 4 is 4 is a front view of a table of the table changer of the laser processing machine according to the present invention in a raised state, and FIG. 4A is a side view of a table of the table changer of the laser machine according to the present invention in a raised state.

As shown in FIGS. 3 and 3A and 4 and 4A, in the table exchange apparatus of the laser processing machine according to the present invention, the upper first table 210 and the lower second table 220 are spaced at a predetermined interval. It is provided up and down. That is, the first table 210 and the second table 220 are provided with 'c' shaped channel steel 230 at the top and bottom, respectively, the channel steel 230 is a pair of the first It is provided on both sides of the first table 210 and the second table 220.

The first table 210 and the second table 220 have a square panel shape having a plurality of needle rods disposed thereon, and a material to be processed is placed on an upper portion of the needle rods. The workpiece is fixed not to flow by the clamp.

In addition, a rail 240 is provided at the side of the channel steel 230 at the portion where the first table 210 and the second table 220 contact the channel steel 230, and the first table 210 and the first table 210 are formed. A wheel 250 is provided at the side of the second table 220 so that the first table 210 and the second table 220 can be moved along the rail 240. A pin 310 is provided below the channel steel 230, and the pin 310 is fitted into an eccentric hole 315 formed to be eccentrically formed in the first gear 300.

The pins 310 are installed in four places of the channel-shaped steel 230 in two pairs and are supported by rotation by a bearing. In addition, the first gear 300 in which the eccentric hole 315 is formed to be fitted into the pin 310 is also provided in two pairs on the outside of the channel steel 230, respectively, and is fitted in the pin 310 so as to fit the channel steel ( 230, 4 points.

A central axis is provided at the center of the first gear 300 so that the channel fixing block 360 is supported so that there is no difficulty when the bearing is rotated. In addition, two pairs of second gears 320 for driving the first gear 300 are provided at the lower side of the first gear 300 for each of the first gears 300, and the second gear ( 320 is smaller in diameter than the first gear 300.

The second gear 320 is rotatably supported at each of the channel fixing blocks 360 on both sides, and a driving shaft 330 capable of rotating the second gear 320 is provided at one central portion thereof to receive rotational force. Couplings 340 are provided on the driving shafts 330, respectively, and the driving shafts 330 provided at both sides of the driving shaft 330 are connected to the joint shaft 350.

The other side of the second gear 320 is connected to the driving motor 400 by the coupling 340 to transfer the rotational force of the driving motor 400 to the second gear 320. When the second gear 320 is rotated by the rotational force of the driving motor 400, the first gear 300 meshed with the second gear 320 rotates by 180 °, and the first gear 300 is rotated. ), The first table 210 and the second table 220, which are eccentrically fitted, rise. When the first gear 300 further rotates 180 °, the first table 210 and the second table 220 are lowered again.

3 and 3a and 4 and 4a will be described in detail the operation relationship of the table exchange apparatus of the laser processing machine according to the present invention.

Figure 3 is a front view of the table of the table exchanger of the laser processing machine according to the present invention is lowered, Figure 3a is a side view.

As shown in FIG. 3 and FIG. 3A, the eccentric hole 315 of the first gear 300 descends to the bottom dead center according to the rotation of the second gear 320 driven by the rotation of the driving motor 400. As early as possible, the first table 210 and the second table 220 inserted into the pin 310 interlock with each other and descend to the lower end. One side of the first table 210 and the second table 220 is provided with a processing unit 500, the processing unit 500 can move the first and second tables to the processing unit 500. The table guide rail 510 is installed.

When the eccentric hole 315 of the first gear 300 descends to reach the bottom dead center, the rail 240 on which the first table 210 is placed and the table guide rail 510 are flush with each other and are in a straight line. Extend into the phase. Therefore, the first table 210 is moved to the processing unit 500 along the table guide rail 510 in the lowered state is processed to the workpiece on the first table 210.

4 is a front view of the table of the table exchange apparatus of the laser processing machine according to the present invention in a raised state, and FIG. 4A is a side view.

As shown in FIG. 4 and FIG. 4A, as the second gear 320 driven by the rotation of the driving motor 400 rotates further by 180 ° in the states of FIGS. 3 and 3A, the first gear 300 is rotated. When the eccentric hole 315 is raised to reach the top dead center, the first table 210 and the second table 220 which are inserted into the pin 310 and interlock with each other rise upward.

When the eccentric hole 315 of the first gear 300 rises to reach a top dead center, the rail 240 on which the second table 220 is placed and the table guide rail 510 are flush with each other. Extend into the phase. Accordingly, as in the case where the first table 210 is moved, the second table 220 moves to the processing unit 500 along the table guide rail 510 in the state where the second table 220 is moved upward. 220) The above workpiece is processed.

In the table exchange apparatus of the laser processing machine according to the present invention operated as described above, since the first gear 300 and the second gear 320 are connected as gears, the first table 210 and the second table 220 are used. At this time of raising and lowering, errors of the rising speed and the rising height do not occur. Since the second gear 320 has a smaller diameter than the first gear 300, the capacity of the driving motor 400 can exert at least a large force. The larger the gear ratio of the first gear 300 and the second gear 320, the smaller the capacity of the drive motor 400, but if the gear ratio is too large, the work speed is slowed down, so the gear ratio is the work speed and the drive motor 400 Considering the capacity of

As described above, according to the table exchange apparatus of the laser processing machine according to the present invention, the pin 310 is provided on one side of the channel steel 230 in which the first table 210 and the second table 220 are installed. As the eccentric hole 315 into which the pin 310 is fitted is provided eccentrically in the first gear 300, the first table 210 and the second table 220 according to the rotation of the first gear 300. This can be transported up and down without errors in the moving speed and height.

The first table 210 and the second table 220 are moved up and down without an error in the moving speed and height, so that the first table 210 and the second table 220 on which the workpiece is placed more stably are processed. It is possible to provide a table replacement apparatus for the laser processing machine that can be transferred to the unit (500).

Then, the diameter of the second gear 320 is smaller than the diameter of the first gear 300 to use the gear ratio of the two gears, the table of the laser processing machine for moving the large load of the workpiece with a small capacity motor It is possible to provide a replacement device.

In addition, the first gear 300 to be eccentrically fitted with the channel-shaped steel 230, the second gear 320 for rotating the first gear 300 and the drive motor for driving the second gear 320 ( The structure can be simplified to provide a table changer of a laser processing machine that is trouble free and easy to maintain.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, various other modifications and variations may be made without departing from the spirit and scope of the invention. Accordingly, it is intended that the appended claims cover such modifications and variations as fall within the true scope of the invention.

Claims (3)

The upper first table 210 and the lower second table 220 are provided to be spaced apart from each other by a predetermined interval, and the channel-shaped steel 230 is disposed on both sides of the first table 210 and the second table 220. ) Is provided, and the rails 240 are provided at the upper and lower portions of the channel-shaped steel 230, and the wheels 250 mounted on the rails 240 are provided at the lower ends of the first and second tables 210 and 220. In the table exchange apparatus of the laser processing machine provided, A pin 310 provided at a lower end of the channel steel 230; Two pairs of first gears 300 provided at one side of the channel steel 230 and having an eccentric hole 315 into which the pin 310 is fitted; Two pairs of second gears 320 provided at a lower end of the first gear 300 and engaged with the first gear 300 to drive the first gear 300 and having a driving shaft 330 at the center thereof. ; A channel fixing block 360 which supports two pairs of the first gear 300 and the second gear 320 and is provided at both sides thereof; A joint shaft 350 connected to the driving shaft 330 provided at the center of the second gear 320; And a drive motor (400) connected to the other side of the drive shaft (330). The table exchange apparatus of claim 1, wherein the second gear (320) is smaller in diameter than the first gear (300). The table of claim 1, wherein the joint of the driving motor 400 and the driving shaft 330 and the joint of the driving shaft 330 and the joint shaft 350 are connected by a coupling 340. Exchange device.