公开(公告)号：US20240255402A1

公开(公告)日：2024-08-01

申请号：US18565855

申请日：2022-06-03

申请人： The Texas A&M University System

发明人： Dinakar Sagapuram ,  Harshit Chawla ,  Hrayer Aprahamian

IPC分类号： G01N3/42 ,  G01N3/06 ,  G01N3/58

CPC分类号： G01N3/42 ,  G01N3/068 ,  G01N3/58 ,  G01N2203/0082 ,  G01N2203/0647 ,  G01N2203/0694

摘要： A method for determining constitutive parameters of a subject material includes collecting a force sensor output from a force sensor unit for measuring reactive forces applied to a deformation tool from a subject material travelling in a predefined direction relative to the deformation tool, collecting an image sequence output from a camera unit depicting a deformation zone formed between the deformation tool and the subject material as the subject material is plastically deformed by the deformation tool, and estimating a constitutive parameter of the subject material based on the force sensor output and the image sequence output.

公开(公告)号：US11441980B2

公开(公告)日：2022-09-13

申请号：US16630709

申请日：2018-04-30

申请人： Dow Global Technologies LLC

发明人： Sanjay C. Solanki ,  Donald L. McCarty, II ,  Robert A. Gunther ,  Jin Wang ,  Kyle A. Myers ,  Margaret C. Hayes

IPC分类号： G01N3/08 ,  B25J15/00 ,  G01N3/06 ,  B25J9/04 ,  G01N3/58

摘要： A system and method for performing a tear test are described herein. The system may include a fixed clamping station configured to hold a first portion of a film specimen and a movable clamp coupled to an actuator, the movable clamp may be configured to hold a second portion of the film specimen. The movable clamp may be configured to move in a direction away from the fixed clamping station to tear the film specimen. The system may include a slitter blade configured to cut the film specimen at a location between the fixed clamping station and the movable clamp. The system may include a load cell coupled to one of the fixed clamping station and the movable clamp. The load cell may be configured to measure a force associated with tearing of the film specimen. The actuator may be configured to manipulate the movable clamp along a trajectory.

公开(公告)号：US11346759B2

公开(公告)日：2022-05-31

申请号：US16104724

申请日：2017-02-09

申请人： ANAGO LIMITED

发明人： Tim Staub ,  Peter Dowd

IPC分类号： G01N3/58 ,  B23Q17/09 ,  G01N3/08

摘要： A system for testing blade sharpness comprises a mounting arrangement for mounting a material to be cut; a force measuring device operable, in use, to determine variations in force along a blade as parts of the blade contact the material; and a control system. The control system is adapted to receive a signal that a blade sharpness test is to be performed; in response to the signal, prepare the mounting arrangement for a blade sharpness test; detect when force on the material rises above a pre-determined level; detect when the blade sharpness test is completed; and provide an indication of the force of the blade on the material.

公开(公告)号：US20210356934A1

公开(公告)日：2021-11-18

申请号：US16976833

申请日：2019-10-09

申请人： Tata Consultancy Services Limited

发明人： Ankur KRISHNA ,  Bilal MUHAMMED

IPC分类号： G05B19/4065 ,  G01N3/58

摘要： Tool wear monitoring is critical for quality and precision of manufacturing of parts in the machining industry. Existing tool wear monitoring and prediction methods are sensor based, costly and pose challenge in ease of implementation. Embodiments herein provide method and system for monitoring tool wear to estimate Remaining Useful Life (RUL) of a tool in machining is disclosed. The method provides a tool wear model, which combines tool wear physics with data fitting, capture practical considerations of a machining system, which makes the tool wear prediction and estimated RUL more stable, reliable and robust. Further, provides cost effective and practical solution. The disclosed physics based tool wear model for RUL estimation captures privilege of physics of tool wear and easily accessible data from CNC machine to monitor and predict tool wear and RUL of the tool in real-time.

公开(公告)号：US11092527B1

公开(公告)日：2021-08-17

申请号：US16196816

申请日：2018-11-20

申请人： Razor Edge Systems, Inc.

发明人： Mary T. Graves ,  Daniel D. Graves ,  Joseph C. Juranitch ,  Scott D. Taylor

IPC分类号： G01N3/58 ,  B24D15/08

摘要： A hand tool edge tester for evaluating the sharpness and smoothness of the cutting edge of a blade for the hand tool like a knife is provided according to the invention. The knife blade is held stationary along a horizontal, longitudinal axis. A long piece of solid tape of the cuttable substrate material like Teflon moved within a reel-to-reel tape mechanism attached to a tape carriage travels simultaneously horizontally as the tape carriage moves along a longitudinal axis, and along an upwardly inclined, diagonal pathway defined by the reel-to-reel mechanism. The blade of the hand tool slices the upwardly, diagonally moving tape ribbon with the load cell measuring the cutting force exerted by the tape ribbon against the blade as it is moved along the distance of the cutting edge substantially between the hand tool handle and the blade tip. The diagonal axis for the path of the traveling cuttable substrate media tape allows the knife blade to cut the tape more easily without tearing, along with an approximate 90° angle between the blade tip and the cutting media pathway, thereby providing a more accurate measurement by the load cell of the tip portion of the blade as it slices the tape. The cutting force data produced by the load cell yields a cutting profile for the cutting edge along the hand tool blade to indicate the relative sharpness and smoothness of the cutting edge.

公开(公告)号：US11047781B2

公开(公告)日：2021-06-29

申请号：US16261961

申请日：2019-01-30

申请人： Toyota Motor Engineering & Manufacturing North America, Inc.

发明人： William L. Cyrus ,  Jonathan L. Smith ,  Lonnie G. Simpkins ,  Scott A. Tittle ,  Danny L. Richardson, Jr.

IPC分类号： G01N3/04 ,  G01N3/58 ,  G01M15/04 ,  G01N3/56

摘要： The mounting jig assembly includes a jig body and a clamp assembly. The jig body includes a top surface, a bottom surface, a front wall, a rear wall, and a pair of side walls. The jig body is configured to support the test component on the testing assembly with the test component in contact with the top surface and the bottom surface in contact with the testing platform. The jig body defines an elongated opening that extends between the top surface and the bottom surface. The top surface being oriented obliquely with respect to the bottom surface. The clamp assembly is moveable between a clamped position and an unclamped position. In the clamped position the clamp assembly inhibits movement of the test component with respect to the jig body. In the unclamped position the clamp assembly permits movement of the test component with respect to the jig body.

公开(公告)号：US10695884B2

公开(公告)日：2020-06-30

申请号：US15933380

申请日：2018-03-23

申请人： NATIONAL CHENG KUNG UNIVERSITY

发明人： Haw-Ching Yang ,  Fan-Tien Cheng

IPC分类号： B23Q17/24 ,  B23Q17/09 ,  H04L12/24 ,  G05B19/4065 ,  G05B13/04 ,  G01N3/58 ,  G06T19/00 ,  H04L29/08 ,  H04L29/12 ,  G06F9/455 ,  G05B23/02

摘要： A tool wear monitoring and predicting method is provided, and uses a hybrid dynamic neural network (HDNN) to build a tool wear prediction model. The tool wear prediction model adopts actual machining (cutting) conductions, sensing data detected at the current tool run of operation and the predicted tool wear value at the previous tool run of operation to predict a predicted tool wear value at the current tool run. A cyber physical agent (CPA) is adopted for simultaneously monitoring and predicting tool wear values of plural machines of the same machine type.

公开(公告)号：US20190143467A1

公开(公告)日：2019-05-16

申请号：US15854601

申请日：2017-12-26

申请人： INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

发明人： Ming-Jheng WANG ,  Meng-Chiu LIN ,  Chung-Min CHANG ,  Min-Rong CHEN ,  Chien-Yi LEE

IPC分类号： B23Q15/16 ,  G01N3/58 ,  G05B19/404 ,  G05B19/4065

摘要： A detection device, detection method, and compensation method for tool wear, applied to a machine tool including a spindle connected to a tool. A first parameter set including a first cutting depth having a zero cutting depth is set, and the machine tool performs a cutting procedure with the first parameter set to record a first loading rate of the spindle. A second parameter set including a second cutting depth having a non-zero cutting depth is set, and the machine tool performs the cutting procedure with the second parameter set to record a second loading rate of the spindle. A processing device calculates an estimated cutting force according to the loading rates and a machine performance database. A fuzzy logic unit outputs a wear level according to a tool wear database and the estimated cutting force. The machine tool adjusts a cutting locus according to the wear level.

公开(公告)号：US20180202117A1

公开(公告)日：2018-07-19

申请号：US15872165

申请日：2018-01-16

申请人： Wirtgen GmbH

发明人： Stefan Wagner ,  Cyrus Barimani ,  Günter Hähn

IPC分类号： E01C23/12 ,  E01C23/088 ,  G01B1/00 ,  E21C35/00 ,  G01N3/58 ,  G01N3/56 ,  B28D7/00

CPC分类号： E01C23/12 ,  B28D7/00 ,  E01C23/088 ,  E21C35/00 ,  G01B1/00 ,  G01N3/56 ,  G01N3/58

摘要： This invention relates to a method for determining a wear state of a chisel, a chisel holder, and/or a chisel holder replacement system equipped with a chisel and chisel holder. For this method to give the user qualitative and quantitative information about the wear, according to one embodiment of this invention, a position of at least one point of the chisel and/or the chisel holder is determined by a contactless measurement method and a corresponding measurement result is compared in a switching unit to a reference value stored in a memory device.

公开(公告)号：US09863247B2

公开(公告)日：2018-01-09

申请号：US14899740

申请日：2014-06-12

申请人： BOMAG GmbH

发明人： Joern Von der Lippe ,  Matthias Schaaf

IPC分类号： E01C23/088 ,  E21C35/00 ,  E21C25/10 ,  G01N3/56 ,  G01N3/58

CPC分类号： E21C35/00 ,  E01C23/088 ,  E21C25/10 ,  G01N3/56 ,  G01N3/58

摘要： The present invention relates to a ground milling machine, in particular a road milling machine, a recycler, a stabilizer or a surface miner, comprising a milling drum with a milling drum width (a) extending along its rotational axis and with at least two chiseling devices, each of which comprises a chisel and a chisel holder, and a sensor device for determining wear on the at least two chiseling devices in a contactless manner, said sensor device comprising a sensor for measuring a wear parameter of the at least two chiseling devices, the sensor being movable at least over a part of the milling drum width (a) in order to set an identical measurement angle (α) and an identical position of the sensor relative to the at least two chiseling devices in order to measure the wear parameter of the at least two chiseling devices. The present invention further relates to a method for determining wear on the at least two chiseling devices of the ground milling machine in a contactless manner.