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    • 4. 发明授权
    • Laser beam machining method
    • 激光束加工方法
    • US5252805A
    • 1993-10-12
    • US852184
    • 1992-05-29
    • Yoshinori NakataEtsuo YamazakiNorio KarubeTsuyoshi Nagamine
    • Yoshinori NakataEtsuo YamazakiNorio KarubeTsuyoshi Nagamine
    • B23K26/00B23K26/08B23K26/36B23K26/38G05B19/416
    • G05B19/4163B23K26/0838B23K26/382G05B2219/35249G05B2219/43129G05B2219/43147G05B2219/45165
    • A laser beam machining method for cutting a workpiece in accordance with a machining program composed of a succession of move commands and laser output commands. An angle of a machining path is calculated on the basis of a move command under execution and a subsequent read out move command (S2, S3). The angle of the machining path is compared with a preset angle (S4), and when the angle of the machining path is more acute than the preset angle, the movement for machining based on the move command under execution is decelerated and stopped (S5). In this case, the laser output command is changed from a cutting condition to a piercing condition, to carry out a piercing operation, and when the piercing operation is completed, the movement for machining is restarted in accordance with the subsequent move command. When the movement for machining is restarted, the laser output command is changed from the piercing condition to the cutting condition in accordance with the movement for machining. Accordingly, a clean-cut acute-angle portion can be obtained by this machining.
    • PCT No.PCT / JP91 / 01371 Sec。 371日期:1992年5月29日 102(e)日期1992年5月29日PCT 1991年10月5日PCT PCT。 出版物WO92 / 06815 日期:1992年04月30日。一种用于根据由一系列移动命令和激光输出命令组成的加工程序切割工件的激光束加工方法。 基于正在执行的移动命令和随后的读出移动命令(S2,S3)来计算加工路径的角度。 将加工路径的角度与预设角度(S4)进行比较,并且当加工路径的角度比预设角度更尖锐时,基于执行中的移动命令的加工移动减速停止(S5) 。 在这种情况下,激光输出指令从切断状态变为穿刺状态,进行穿刺动作,当穿刺动作完成时,根据随后的移动指令重新起动加工动作。 当重新开始加工运动时,激光输出命令根据加工运动从穿孔状态切换到切割状态。 因此,通过该加工可以获得清洁的锐角部分。
    • 6. 发明授权
    • Data transmission method and apparatus therefor
    • 数据传输方法及其装置
    • US4773040A
    • 1988-09-20
    • US782712
    • 1985-09-23
    • Tsuyoshi NagamineNobuyuki Kiya
    • Tsuyoshi NagamineNobuyuki Kiya
    • H04L29/08G05B19/414G06F13/42G06F15/17H04L5/20H04L11/06G06F13/38
    • G06F15/17G05B19/4142G06F13/4226H04L5/20G05B2219/35545
    • The present invention provides a data transmission method for sending parallel data from a transmitting side to a receiving side. After transmitting an i-th item of data (DT.sub.i), the transmitting side sends a high-level data transmission signal (DS) to the receiving side at the expiration of a predetermined period of time (t.sub.1). In response to receipt of the high-level data transmission signal (DS), the receiving side reads the i-th item of data (DT.sub.i) and sends a high-level data reception signal (DR) to the transmitting side. The transmitting side ends the transmission cycle for the i-th item of data upon receiving the high-level data reception signal (DR). After transmitting the next or (i+1)th item of data (DT.sub.i+1), the transmitting side sends a low-level data transmission signal (DS) at the expiration of the predetermined period of time (t.sub.1). In response to receipt of the low-level data transmission signal (DS), the receiving side reads the (i+1)th item of data (DT.sub.i+1) and sends a low-level data reception signal (DR) to the transmitting side. The transmitting side ends the transmission cycle for the (i+1)th item of data upon receiving the low-level data reception signal (DR). In subsequent data transmission, data are successively transmitted by repeating th i-th and (i+1)th data transmission cycles.
    • PCT No.PCT / JP85 / 00035 Sec。 371日期:1985年9月23日 102(e)1985年9月23日PCT PCT 1月29日,PCT PCT。 公开号WO85 / 03396 1985年8月1日。本发明提供一种从发送侧向接收侧发送并行数据的数据发送方法。 在发送第i项数据(DTi)之后,发送侧在预定时间段(t1)期满时向接收侧发送高电平数据发送信号(DS)。 响应于接收到高级数据传输信号(DS),接收端读取第i个数据项(DTi),并将高电平数据接收信号(DR)发送到发送侧。 发送侧在接收到高电平数据接收信号(DR)时结束第i个数据项的发送周期。 在发送下一个或第(i + 1)个数据项(DTi + 1)之后,发送侧在预定时间段(t1)期满时发送低电平数据发送信号(DS)。 响应于接收到低级数据传输信号(DS),接收侧读取第(i + 1)个数据项(DTi + 1),并将低级数据接收信号(DR)发送到发送 侧。 发送侧在接收到低电平数据接收信号(DR)时结束第(i + 1)项数据的发送周期。 在随后的数据传输中,通过重复第i个和第(i + 1)个数据传输周期连续发送数据。
    • 10. 发明授权
    • Numerical control system
    • 数控系统
    • US4503373A
    • 1985-03-05
    • US394915
    • 1982-06-18
    • Ryoichiro NozawaTsuyoshi NagamineHideaki KawamuraToshiaki Ohtsuki
    • Ryoichiro NozawaTsuyoshi NagamineHideaki KawamuraToshiaki Ohtsuki
    • G05B19/18G05B19/404G05B19/41G05B19/25
    • G05B19/41G05B2219/35459G05B2219/49243G05B2219/50297G05B2219/50336G05B2219/50356
    • Ordinarily, an interpolator (102) executes pulse calculations on the basis of a movement command from a command tape (101), to generate the respective distributed pulses XP, YP, ZP, BP and CP of cartesian coordinate axes and spherical coordinate axes, and these pulses drive corresponding servomotors (113)-(117) through servo circuits (108)-(112). In order to keep the relative position between the nose of a tool and a workpiece unchanged in a manual operation, a tool holder is positioned in the cartesian coordinate system, whereupon manual pulses in the B-axial or C-axial direction are generated by a manual pulse generator (103). Then, the distributed pulses BP and CP are generated through the interpolator (102) and rotate the servomotors (116) and (117). The distributed pulses are simultaneously impressed on a compensation circuit (104), which calculates the compensation pulses XHP, YHP and ZHP so as to drive the servomotors with pulses obtained by adding the compensation pulses to the distributed pulses.
    • PCT No.PCT / JP81 / 00314 Sec。 371日期1982年6月18日 102(e)日期1982年6月18日PCT提交1981年10月29日PCT公布。 出版物WO82 / 01600 日期为1982年5月13日。通常,内插器(102)根据来自命令带(101)的移动指令执行脉冲计算,以生成笛卡尔坐标轴的各自的分布脉冲XP,YP,ZP,BP和CP 和球面坐标轴,这些脉冲通过伺服电路(108) - (112)驱动相应的伺服电动机(113) - (117)。 为了在手动操作中保持工具的鼻子与工件的相对位置不变,工具架位于笛卡尔坐标系中,于是B轴或C轴方向上的手动脉冲由 手动脉冲发生器(103)。 然后,通过内插器(102)产生分布脉冲BP和CP,并使伺服电动机(116)和(117)旋转。 分布式脉冲同时施加在补偿电路(104)上,补偿电路(104)计算补偿脉冲XHP,YHP和ZHP,以便通过将补偿脉冲加到分布式脉冲而获得的脉冲来驱动伺服电动机。