公开(公告)号：WO1989010232A1

公开(公告)日：1989-11-02

申请号：PCT/JP1989000308

申请日：1989-03-23

Applicant: FANUC LTD ,  IEHISA, Nobuaki ,  SUZUKI, Kazuhiro

Inventor： FANUC LTD

IPC: B23K26/00

CPC classification number: G05B19/4069 ,  B23K26/083 ,  G05B19/4063 ,  G05B2219/45165

Abstract: This invention relates to a NC laser apparatus comprising the combination of a numeric control apparatus and a laser machining apparatus. It includes a means for measuring the oscillation time of laser and a means (19) for measuring laser output power. When the oscillation time is within a predetermined time based on the life of optical components and the drop rate of the output power is below a predetermined value, an instruction for cleaning optical components is displayed on a display (18). When the oscillation time of the laser exceeds a predetermined time and the drop rate of the output power is below the predetermined value, an instruction to replace the optical components (5, 6) is displayed on the display (18). Accordingly, the maintenance becomes easy and the life of the optical components can be improved.

公开(公告)号：WO1990010962A1

公开(公告)日：1990-09-20

申请号：PCT/JP1990000307

申请日：1990-03-08

Applicant: FANUC LTD ,  SUZUKI, Kazuhiro ,  IEHISA, Nobuaki

Inventor： FANUC LTD

IPC: H01S03/00

CPC classification number: G05B19/4063 ,  B23K26/705

Abstract: An NC laser for metal working which has the function of indicating the maintenance information on optical parts, and which consists of a combination of a numerical control device (CNC) and a laser oscillator. An electric power measuring instrument (26) measures the electric power (Pi) supplied to the laser oscillators (4, 5, 6). Further, a power sensor (24) measures the laser output (Pa). The laser output efficiency is calculated from the supplied electric power (Pi) and the laser output (Pa). When the laser output efficiency becomes smaller than a predetermined tolerable range of change, an instruction is displayed on the display screen to clean the optical parts. When the laser output efficiency becomes smaller than the tolerable range of change, it is so determined that the optical parts are subject to critical contamination and this fact is given to the operator through the display device.

Abstract translation: 一种用于金属加工的NC激光器，其具有指示光学部件的维护信息的功能，并且由数控装置（CNC）和激光振荡器的组合组成。 电力测量仪（26）测量提供给激光振荡器（4,5,6）的电力（Pi）。 此外，功率传感器（24）测量激光输出（Pa）。 激光输出效率由供电电力（Pi）和激光输出（Pa）计算。 当激光输出效率变得小于预定的可容忍变化范围时，在显示屏幕上显示指示以清洁光学部件。 当激光输出效率变得小于容许的变化范围时，确定光学部件受到严重污染，并且通过显示装置向操作者提供这一事实。

公开(公告)号：WO1995001851A1

公开(公告)日：1995-01-19

申请号：PCT/JP1994000980

申请日：1994-06-16

Applicant: FANUC LTD ,  YAMAZAKI, Etsuo ,  IEHISA, Nobuaki ,  SUZUKI, Kazuhiro

Inventor： FANUC LTD

IPC: B23K26/00

CPC classification number: G05B19/408 ,  B23K26/382 ,  G05B2219/35395 ,  G05B2219/45165 ,  G05B2219/49353

Abstract: According to an instruction signal from a CNC in laser-machining, the laser output is controlled, and the time taken to transfer waveform data from the CNC is much shortened. Receiving an output instruction from the CNC, means (36) for controlling the laser output reads registered data and waveform data stored in the registers (351 to 358) and a memory (34) on the output controller (30) side, and converts the waveform data into the waveform having a desired peak value by multiplying the peak value of the designated waveform by the value of waveform multiplying factor, one of the registered data, and an override value preset in the PMC (18). Next, the repetition period and the number of repetitions are obtained by use of the frequency of the registered data and the times of output. The means (36) outputs the output waveform thus obtained to the power-supply of a laser oscillator.

Abstract translation: 根据CNC在激光加工中的指令信号，可以控制激光输出，从CNC中传输波形数据所花费的时间大大缩短。 接收来自CNC的输出指令，用于控制激光输出的装置（36）读取存储在输出控制器（30）侧的寄存器（351〜358）和存储器（34）中的登记数据和波形数据，并将 通过将指定波形的峰值乘以波形乘法因子的值，登记数据之一和在PMC（18）中预设的超控值，将波形数据转换为具有期望峰值的波形。 接下来，通过使用登记数据的频率和输出次数来获得重复周期和重复次数。 装置（36）将由此获得的输出波形输出到激光振荡器的电源。

公开(公告)号：WO1990010961A1

公开(公告)日：1990-09-20

申请号：PCT/JP1990000306

申请日：1990-03-08

Applicant: FANUC LTD ,  SUZUKI, Kazuhiro ,  IEHISA, Nobuaki

Inventor： FANUC LTD

IPC: H01S03/00

CPC classification number: G05B19/4063 ,  B23K28/00

Abstract: An NC laser for metal working which consists of a combination of a laser oscillator and a numerical control device. Abnormal conditions of the device at rest can be detected prior to starting the machining. At the time of start, an instruction for a laser output (Pc) is sent to an output control circuit (2), and the laser output is monitored by a power sensor (2e) to find a ratio of an instruction value (Pc) to a monitor value (Pa). The ratio is stored in a non-volatile memory (10) to find a difference between this ratio and the ratio found at the time of previous starting. When the difference is greater than a preset value, an alarm is displayed on a display screen. When there is a difference greater than a predetermined value between the ratio of this time and the ratio of the previous time, it is regarded that some abnormal condition has developed during the stop period and an alarm is produced.

公开(公告)号：WO1989002335A1

公开(公告)日：1989-03-23

申请号：PCT/JP1988000891

申请日：1988-09-03

Applicant: FANUC LTD ,  YAMAZAKI, Etsuo ,  IEHISA, Nobuaki ,  SUZUKI, Kazuhiro

Inventor： FANUC LTD

IPC: B23K26/00

CPC classification number: B23K26/08 ,  G05B19/408 ,  G05B2219/34391 ,  G05B2219/43147 ,  G05B2219/45165 ,  H01S3/134

Abstract: A method of controlling laser power by controlling the laser output according to an NC instruction and controlling the laser output as a function of the movement instruction speed of a machine. A movement instruction speed is input to a simulator which employs linear or quadratic approximation for a mechanical system, and a laser output instruction value is calculated based on the result of calculation, in order to maintain simultaneity between the moving speed of the mechanical system and the laser output control. Therefore, simultaneity is maintained relative to the laser power projected onto the work to improve the cutting performance.

公开(公告)号：WO1997028585A1

公开(公告)日：1997-08-07

申请号：PCT/JP1997000260

申请日：1997-02-03

Applicant: FANUC LTD ,  KARUBE, Norio ,  IEHISA, Nobuaki ,  MITSUI, Kenji

Inventor： FANUC LTD

IPC: H01S03/07

CPC classification number: H01S3/0941 ,  H01S3/0606 ,  H01S3/0612 ,  H01S3/0615 ,  H01S3/08095 ,  H01S3/093

Abstract: An inexpensive solid laser oscillator from which high output can be obtained. Laser crystals (YAG laser crystals, etc.) (1a, 1b and 1c) are so arranged along the optical axis of an optical resonator that the crystals are in optical contact with each other. Adjacent laser crystals have surfaces facing to each other with adhesive layers (10, 20) inbetween and form a linear aggregate as a whole. The adhesive of the adhesive layers exhibits a low light absorption factor for light having the oscillation wavelength of the laser oscillator or pumping light. When the refractive index of the adhesive is nearly equal to that of the laser crystals, optical matching can be obtained. The adhesive layers (10 and 20) can be formed of another transparent material or can be replaced with narrow gaps or face-contacts.

Abstract translation: 便宜的固体激光振荡器，可从中获得高输出。 激光晶体（YAG激光晶体等）（1a，1b和1c）沿着光学谐振器的光轴布置，晶体彼此光学接触。 相邻的激光晶体具有彼此面对的表面，其间具有粘合剂层（10,20），并且形成整体上的线性聚集体。 对于具有激光振荡器或泵浦光的振荡波长的光，粘合剂层的粘合剂表现出低的光吸收系数。 当粘合剂的折射率几乎等于激光晶体的折射率时，可以获得光学匹配。 粘合剂层（10和20）可以由另一种透明材料形成，或者可以用狭窄的间隙或面接触来代替。

公开(公告)号：WO1990008619A1

公开(公告)日：1990-08-09

申请号：PCT/JP1990000053

申请日：1990-01-17

Applicant: FANUC LTD ,  IEHISA, Nobuaki ,  YAMAZAKI, Etsuo

Inventor： FANUC LTD

IPC: B23K26/00

CPC classification number: G05B19/401 ,  B23K26/382

Abstract: A laser machining apparatus for machining a work by applying a laser beam (9) onto a surface of the work. The work (11) is perforated by the laser beam (9). When a hole is bored, the laser beam (9) impinges a laser beam detector (13). Upon detecting the laser beam, the perforation step is finished and the next step is consecutively carried out. For example, the work (11) is transferred and cut. Thus, the perforation step and the cutting step are properly carried out.

Abstract translation: 一种用于通过将激光束（9）施加到工件的表面上来加工工件的激光加工装置。 工件（11）被激光束（9）穿孔。 当孔洞无孔时，激光束（9）撞击激光束检测器（13）。 在检测到激光束时，穿孔步骤完成，并且连续执行下一步骤。 例如，工作（11）被转移和剪切。 因此，适当地执行穿孔步骤和切割步骤。

公开(公告)号：WO1990007397A1

公开(公告)日：1990-07-12

申请号：PCT/JP1989001163

申请日：1989-11-15

Applicant: FANUC LTD ,  IEHISA, Nobuaki ,  YAMAZAKI, Etsuo

Inventor： FANUC LTD

IPC: B23K26/00

CPC classification number: B23K26/032 ,  B23K26/702

Abstract: This invention relates to a laser machining apparatus which outputs a laser beam, irradiates it on a work surface and machines the work. The apparatus includes a power sensor (21) for detecting the level of the reflected laser beam (11) reflected from the surface of the work (10) and fed back into a laser oscillator and abnormality detection means for stopping the operation of the laser oscillator and the movement of the work (10) when the level of the reflected laser beam (11) exceeds a predetermined value, and for displaying an alarm on display (19). The power sensor (21) monitors the level of the reflected laser beam (11) fed back into the laser oscillator. When abnormal reflection occurs, the monitor value rises beyond the set value. Therefore, the abnormality detection means detects this unusual rise, stops the operation of the laser oscillator and the movements of the work and a nozzle and at the same time displays the alarm on the display (19).

公开(公告)号：WO1989006174A1

公开(公告)日：1989-07-13

申请号：PCT/JP1989000005

申请日：1989-01-06

Applicant: FANUC LTD ,  YAMAZAKI, Etsuo ,  IEHISA, Nobuaki

Inventor： FANUC LTD

IPC: B23K26/08

CPC classification number: B23K26/046 ,  B23K26/048 ,  B23K26/08 ,  B23K26/0884 ,  G05B19/41 ,  G05B19/425 ,  G05B2219/36417 ,  G05B2219/37425 ,  G05B2219/45165 ,  G05B2219/49362

Abstract: A laser device for effecting three-dimensional machining of the present invention comprises a teach box (20) to give NC instructions, a detector (43) for measuring the distance from the tip of the nozzle to the work, and a control device (10) that is constituted by instruction storage means for storing NC instructions, means for executing the NC instructions, profile means for maintaining a constant gap between the nozzle and the work, stop control means for stopping the execution of the NC instruction program, computing means for determining instruction values for correction of coordinates, and correction means for producing a correct value based on the determined instruction value. The profile control is carried out while the NC instruction is being executed, and the path is corrected by inserting a corrected value in case the deviation from the NC instruction path has exceeded a predetermined quantity. Further, the NC instruction is executed without the profile control, and the path is corrected by inserting a corrected value in case the deviation between the distance up to the work and a standard gap has exceeded a predetermined value. This enables the teaching data to be easily confirmed and corrected, and reliable teaching data to be obtained.

公开(公告)号：WO1990003052A1

公开(公告)日：1990-03-22

申请号：PCT/JP1989000856

申请日：1989-08-22

Applicant: FANUC LTD ,  IEHISA, Nobuaki ,  YAMAZAKI, Etsuo

Inventor： FANUC LTD

IPC: H01S03/03

CPC classification number: H01S3/0975 ,  H01S3/03

Abstract: A discharge tube for a gas laser device in which the axis of the laser gas stream is in concentric with the axis of the laser oscillation beam, and the direction of discharge for discharge excitation is at right angles therewith. The discharge tube (1) has a rectangular inner cross section to intersect the axis of the laser oscillation beam at right angles therewith, and the non-discharge portions (10a, 10b) have an inner diameter which is greater than the diagonal of the discharge tube (1). The laser beam generated in the rectangular discharge region (11) has a nearly rectangular shape in cross section and is emitted maintaining this shape. Therefore, a beam mode of a nearly rectangular shape is obtained.