JP2526260Y2 - Laser device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser device having a power supply for supplying power to a laser oscillation section and a cooling section for supplying cooling water.

[0002]

2. Description of the Related Art As a laser device of this type, for example, a laser processing device is exemplified. 2. Description of the Related Art In a laser processing apparatus, a large power type power supply unit is used to generate a large laser output in a laser oscillation unit. Further, in order to increase the oscillation efficiency of the laser and stabilize the oscillation operation, a cooling unit such as a tank or a pump for forcibly cooling the laser oscillation unit with cooling water is provided.

The power supply unit and the cooling unit are supplied with required power, signals, primary cooling water, and the like from outside, respectively.
A required signal, waste liquid, and the like are output to the outside. Also, Y
In the case of a solid-state laser device such as an AG laser, since cooling water passes through the excitation lamp electrode in the laser oscillation section, pure water with high insulation is used as cooling water, and ions for maintaining the purity are used. A replacement resin body or filter is provided in the cooling
These ion exchange resin bodies and filters are consumables and need to be replaced periodically with new ones.

[0004]

In a conventional laser processing apparatus of this type, an interface for use, such as a display section and a keyboard section, is provided on a front panel of the apparatus, and external connection terminals and a breaker of a power supply section, and cooling. Repair of external piping connection ports, tanks, ion exchange resin bodies, filters, etc.
Portions that require connection / exchange are provided on the back side of the device.

[0005] For this reason, a maintenance person must turn to the back side of the apparatus when performing repair, wiring connection, parts replacement, and the like. Usually, this type of apparatus is installed near a wall with the wall behind, Work had to be carried out after moving the device and separating it from the wall.

However, this type of laser processing apparatus is similar in size to a home electric refrigerator, but is much heavier than a home electric refrigerator. For example, in a standard YAG laser apparatus, a laser oscillation unit, The total weight of the device including the power supply unit and the cooling unit is about 250 kg to 350 kg.
For this reason, casters are attached to the bottom of the apparatus to make it easier to move. However, inadvertently moving the laser device once installed not only requires extra space around the device, but also may cause an error or a failure by giving vibration to the optical system in the laser oscillation unit. Did not.

The present invention has been made in view of the above problems, and has as its object to provide a laser device capable of easily performing maintenance work such as connection, repair, and replacement without moving the device. I do.

[0008]

In order to achieve the above object, a laser device according to the present invention comprises a power supply unit for supplying power to a laser oscillation unit, and a power supply unit for supplying cooling water to the laser oscillation unit. In a laser device having a built-in cooling unit, an external connection terminal of the power supply unit and an external pipe connection port of the cooling unit are provided at the front of the device.

[0009]

According to the present invention, since the external connection terminal of the power supply unit and the external piping connection port of the cooling unit are provided at the front of the device, for example, the work of connecting the external device to the electric terminal and the external cooling. The work of connecting the water supply / discharge unit and the pipe can be easily performed by opening the front door or cover. Maintenance personnel do not need to go to the back of the device or move the device.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a front view showing a structure of a front part of a laser processing apparatus according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an appearance of the laser processing apparatus.

Referring to FIG. 2, the laser processing apparatus has an upper unit 10 and a lower unit 12 integrally connected. Inside the upper unit 10, a laser oscillation unit 14, an input unit for an optical fiber, a control board of a power supply unit, and the like are housed. On the front panel 18 of the upper unit 10,
A display 20 for displaying various set values, measured values, monitor values, etc., various key switches 22, and an emergency stop button 21 are provided.

Inside the lower unit 12, a power section of a power supply section, an external connection terminal, a breaker, a tank of a cooling section, a pump, a heat exchanger, an ion exchange resin, a filter, an external pipe connection terminal, and the like are accommodated. ing. Lower unit 1
The second front panel 24 is a door. When the button 26 at the left end is pressed, the knob 28 comes forward. When the knob 28 is pulled, the front panel 24 opens in the direction of the arrow. A cutout window 30 is formed in the front panel 24, and a breaker 32 of a power supply unit, a key switch 34, and a thermometer 36 of a cooling unit are exposed through the window 30.

FIG. 1 shows a front structure of the lower unit 12 when the front panel (door) 24 is opened. The inside of the lower unit 12 is divided into left and right, the main part of the cooling unit 23 is disposed on the left side, and the main part of the power supply unit 25 is disposed on the right side.

In the cooling section 23, a tank 38 for storing cooling water to be supplied to the laser oscillation section is arranged at the front of the apparatus. In this tank 38, an ion exchange resin body and a filter are accommodated in a state submerged in cooling water.

A support plate 40 is fixed to the front surface of the tank 38. The support plate 40 is provided with a city water supply port 42 and a city water discharge port 44 as external pipe connection ports. These city water supply port 42 and city water discharge port 44
It is connected to the primary inlet and the primary outlet of the heat exchanger (not shown) at the inner part through 6, 48. As shown, the pipes 46 and 48 extend inward along the front and side surfaces of the tank 38. Pipes 46 and 4
A support plate 49 provided with an opening through which the passage 8 passes is fixed. An electromagnetic valve 47 for controlling supply of city water to the heat exchanger is provided in the middle of the pipe 46.

The secondary inlet of the heat exchanger is connected to the inlet of the laser oscillating unit 14 via a pipe (not shown), and the secondary outlet of the heat exchanger is connected to the tank inlet 50 on the back side of the tank 38 via a pipe (not shown). It is connected. A tank outlet 52 is also provided on the back side of the tank 38, and the tank outlet 52 is connected to an inlet of a pump (not shown) at the back through a pipe (not shown), and the outlet of the pump is connected to a laser via a pipe (not shown). It is connected to the entrance of the oscillation unit 14.

The cooling water that has entered the tank inlet 50 from the secondary outlet of the heat exchanger first enters the ion-exchange resin body, where ions are removed there to restore the purity of water, and exits from the ion-exchange resin body. After staying in the tank 38, it is pumped from the tank outlet 52 to the pump side through the filter.

As described above, in the present laser device, the tank 3
Since the ion exchange resin body and the filter are provided in the front part of the apparatus and the ion exchange resin body and the filter are provided therein, the ion exchange resin body and the filter can be easily replaced by opening the lid 38a of the tank 38 from the front.

A drain port 54 for draining cooling water is provided on the front surface of the tank 38, and an external pipe is connected to the drain port 54 when draining. In addition, the above city water supply port 4
2 is connected to a water tap (not shown) via an external pipe 56 shown by a dashed line, and the city water outlet 44 is connected to a drainage tank or a drainage groove (not shown) for city water via an external pipe 58 shown by a dashed line. ).

As described above, in this laser device, since the external piping connection ports such as the city water supply port 42, the city water discharge port 44, and the drain port 54 are provided at the front of the apparatus, the maintenance staff goes to the back side. Setting, inspection, repair, and other operations can be easily performed from the front without moving the device.

In the power supply unit 25, the support plate 60 on the front
In addition to the breaker 32 and the key switch 34 described above,
External connection terminals such as the I / O connector 62 and the control / external communication connector 64 are also attached. Also, as shown by the dashed line,
The power cable 70 is also connected to the primary terminal of the breaker 32 on the front support plate 60. Thus, when connecting the present laser device to an external device or when checking the breaker 32, the door 2 can be moved without going around the back of the device.
By simply opening 4, the connection work can be easily performed.

A caster 66 is provided at the bottom of the laser device.
And a stationary stopper 68 are provided. As described above, since the present laser device can perform maintenance work from the front by opening the front door 24, the stopper 68 is used when the laser device is installed at a predetermined position, and the caster 66 is used at the time of loading / unloading. Become.

As described above, an embodiment in which the present invention is applied to a laser processing apparatus has been described. However, the present invention is not limited to this, and various modifications and changes are possible.

For example, cooling water may be supplied separately from the laser oscillation unit to cool the power supply unit 15. In this case, an external piping connection port for cooling the power supply unit is provided at the front of the apparatus for cooling the laser. Can be juxtaposed with the external pipe connection ports 42, 44, or can be connected to the city water supply pipe 46 by bypass. It is also possible to provide an ion exchange resin and a filter near the front outside the tank. Further, the front panel 24 may be constituted by a detachable cover instead of the door structure.

Although the laser device according to the above-described embodiment is of a type in which the laser oscillation unit 16 is built in, the present invention is also applicable to a laser device in which the laser oscillation unit is separated from the main body as a separate unit. It is. In such a case, the electrical connection terminals and the piping connection ports for electrically and pipingly connecting the power supply section and the cooling section in the main body and the laser oscillation section in another unit are provided with the external connection terminals and the external piping connection ports. May be arranged at the front of the apparatus together with the. The present invention is also applicable to laser devices other than the laser processing device.

[0026]

As described above, according to the laser device of the present invention, the external connection terminal of the power supply unit for supplying power to the laser oscillation unit and the cooling unit for supplying cooling water to the laser oscillation unit. By providing the external piping connection port at the front of the device, maintenance work such as connection, repair and replacement can be performed from the front of the device, so there is no need to go around the back of the device or move the device, Workability can be greatly improved. In addition, there is no need to provide an extra space for movement around the apparatus, and it is not necessary to apply vibration due to movement to the laser oscillation unit, so that stable performance can be maintained.

[Brief description of the drawings]

FIG. 1 is a front view showing an internal structure of a laser device according to an embodiment of the present invention when a front door is opened.

FIG. 2 is a perspective view showing the appearance of the laser device according to the embodiment.

[Explanation of symbols]

 14 Laser oscillation unit 23 Cooling unit 24 Front panel (door) 25 Power supply unit 32 Breaker 34 Key switch 38 Tank 40 Cooling unit support plate 42 City water supply port 44 City water outlet 54 Drain port 60 Power unit support plate

Claims (1)

(57) [Scope of request for utility model registration] 1. A laser device having a power supply unit for supplying power to a laser oscillation unit and a cooling unit for supplying cooling water to the laser oscillation unit, wherein an external connection terminal of the power supply unit and A laser device, wherein an external pipe connection port of a cooling unit is provided at a front part of the device.