# US 12,214,463 B2 · Method of manufacturing structural object, identifier for manufacturing structural object, structural object manufacturing system, and machining program > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,214,463 B2 - Document ID: US12214463B2 - Status: Granted - Kind: B2 - Application number: 18/577,715 - Filed: 2021-08-06 - Published: 2024-08-08 - Granted: 2025-02-04 - Earliest claimed: 2021-08-06 - Assignees: Kawasaki Railcar Manufacturing Co., Ltd. - Applicants: Kawasaki Railcar Manufacturing Co., Ltd. - Inventors: Yukihiro Sano; Masashi Yamaguchi; Yoshi Sato - Web page: https://patentgrep.com/patent/US12214463B2 ## CPC - B23Q 17/20: for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness - B23Q 15/00: Automatic control or regulation of feed movement, cutting velocity or position of tool or work - B23Q 15/22: Control or regulation of position of tool or workpiece - G05B 19/404: characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia (G05B19/19, G05B19/41 take precedence) - B23Q: DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING (tools of the kind used in lathes or boring machines B23B27/00); MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT - G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G) ## Abstract A method of manufacturing a structural object includes: receiving a data set including workpiece three-dimensional measurement data and first specific information of first identifier three-dimensional measurement data associated with the workpiece three-dimensional measurement data; acquiring second identifier three-dimensional measurement data by measuring a three-dimensional shape of the identifier; reading out the workpiece three-dimensional measurement data from the data set including the first specific information that coincides with second specific information of the second identifier three-dimensional measurement data; and determining a machining plan based on the read workpiece three-dimensional measurement data. ## Claims ### Claim 1 A method of manufacturing a structural object by using machining equipment including a machining tool, the method comprising: receiving a data set including workpiece three-dimensional measurement data acquired by measuring a three-dimensional shape of a workpiece that is a machining target object and first specific information of first identifier three-dimensional measurement data which is acquired by measuring a three-dimensional shape of an identifier attached to the workpiece and is associated with the workpiece three-dimensional measurement data; acquiring second identifier three-dimensional measurement data by measuring the three-dimensional shape of the identifier; reading out the workpiece three-dimensional measurement data from the data set including the first specific information that coincides with second specific information of the acquired second identifier three-dimensional measurement data; and determining a machining plan based on the read workpiece three-dimensional measurement data. ### Claim 2 (depends on 1) The method according to claim 1, wherein the machining plan includes a machining allowance of the workpiece. ### Claim 3 (depends on 1) The method according to claim 1, wherein the machining plan includes relative positions of the workpiece and a machining operation start point of the machining tool. ### Claim 4 (depends on 1) The method according to claim 1, wherein the machining plan includes a relative angle between the workpiece and the machining tool. ### Claim 5 (depends on 1) The method according to claim 1, wherein: the machining plan includes a cutting depth of the machining tool per one pass when the machining tool reciprocates along a surface of the workpiece to perform a cutting operation and a feed speed of the machining tool per one pass; the cutting depth is determined as a value obtained by equally dividing a machining allowance of the workpiece till completion of machining; and the feed speed is determined as a speed that increases as the cutting depth decreases. ### Claim 6 (depends on 1) The method according to claim 1, further comprising: converting the second identifier three-dimensional measurement data into second identification information based on a predetermined rule, wherein: the first specific information of the first identifier three-dimensional measurement data is first identification information obtained by converting the first identifier three-dimensional measurement data based on the predetermined rule; and the second specific information of the second identifier three-dimensional measurement data is the second identification information obtained by the conversion based on the predetermined rule. ### Claim 7 A structural object manufacturing system that manufactures a structural object by using machining equipment including a machining tool, the structural object manufacturing system comprising: a measurement sensor that measures a three-dimensional shape; and processing circuitry connected to the measurement sensor, wherein: the processing circuitry receives a data set including workpiece three-dimensional measurement data acquired by measuring the three-dimensional shape of a workpiece and first specific information of first identifier three-dimensional measurement data which is acquired by measuring the three-dimensional shape of an identifier attached to the workpiece and is associated with the workpiece three-dimensional measurement data; the processing circuitry acquires second identifier three-dimensional measurement data by measuring the three-dimensional shape of the identifier with the measurement sensor; the processing circuitry reads out the workpiece three-dimensional measurement data from the data set including the first specific information that coincides with second specific information of the second identifier three-dimensional measurement data; and the processing circuitry determines a machining plan based on the read workpiece three-dimensional measurement data. ### Claim 8 (depends on 7) The structural object manufacturing system according to claim 7, wherein the machining plan includes a machining allowance of the workpiece. ### Claim 9 (depends on 7) The structural object manufacturing system according to claim 7, wherein the machining plan includes relative positions of the workpiece and a machining operation start point of the machining tool. ### Claim 10 (depends on 7) The structural object manufacturing system according to claim 7, wherein the machining plan includes a relative angle between the workpiece and the machining tool. ### Claim 11 (depends on 7) The structural object manufacturing system according to claim 7, wherein: the machining plan includes a cutting depth of the machining tool per one pass when the machining tool reciprocates along a surface of the workpiece to perform a cutting operation and a feed speed of the machining tool per one pass; the cutting depth is determined as a value obtained by equally dividing a machining allowance of the workpiece till completion of machining; and the feed speed is determined as a speed that increases as the cutting depth decreases. ### Claim 12 (depends on 7) The structural object manufacturing system according to claim 7, wherein: the processing circuitry converts the second identifier three-dimensional measurement data into second identification information based on a predetermined rule; the first specific information of the first identifier three-dimensional measurement data is first identification information obtained by converting the first identifier three-dimensional measurement data based on the predetermined rule; and the second specific information of the second identifier three-dimensional measurement data is the second identification information obtained by the conversion by the processing circuitry based on the predetermined rule. ### Claim 13 (depends on 12) The structural object manufacturing system according to claim 12, wherein: the identifier includes projections or recesses; each of the first identification information and the second identification information includes bit stream data; and the predetermined rule includes a rule that converts projection amounts of the projections or recess amounts of the recesses into the bit stream data. ### Claim 14 (depends on 13) The structural object manufacturing system according to claim 13, wherein the identifier includes adjusters that mechanically change the projection amounts of the projections or the recess amounts of the recesses. ### Claim 15 (depends on 7) The structural object manufacturing system according to claim 7, wherein the identifier includes an adsorbing body or a fixture attachable to and detachable from the workpiece. ### Claim 16 (depends on 7) The structural object manufacturing system according to claim 7, wherein: the measurement sensor is a second measurement sensor; the processing circuitry is second processing circuitry; the manufacturing system acquires the first identifier three-dimensional measurement data by measuring the three-dimensional shape of the identifier with a first measurement sensor of a three-dimensional measurer including the first measurement sensor and first processing circuitry; the manufacturing system acquires the workpiece three-dimensional measurement data by measuring the three-dimensional shape of the workpiece with the first measurement sensor; and the manufacturing system associates the workpiece three-dimensional measurement data with the first specific information of the first identifier three-dimensional measurement data and outputs the data set by the first processing circuitry. ### Claim 17 A non-transitory computer readable medium storing a machining program for use in manufacturing a structural object by using machining equipment including a machining tool, the machining program causing at least one processor to execute: receiving a data set including workpiece three-dimensional measurement data acquired by measuring a three-dimensional shape of a workpiece and first specific information of first identifier three-dimensional measurement data which is acquired by measuring a three-dimensional shape of an identifier attached to the workpiece and is associated with the workpiece three-dimensional measurement data; acquiring second specific information of second identifier three-dimensional measurement data by measuring the three-dimensional shape of the identifier with a measurement sensor of the machining equipment; reading out the workpiece three-dimensional measurement data from the data set including the first specific information that coincides with the second specific information of the second identifier three-dimensional measurement data; and determining a machining plan based on the read workpiece three-dimensional measurement data.