CN105014481A - Portable tool wear measuring instrument and method for predicting remaining service life of tool through measuring instrument - Google Patents

Portable tool wear measuring instrument and method for predicting remaining service life of tool through measuring instrument Download PDF

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Publication number
CN105014481A
CN105014481A CN201510489858.3A CN201510489858A CN105014481A CN 105014481 A CN105014481 A CN 105014481A CN 201510489858 A CN201510489858 A CN 201510489858A CN 105014481 A CN105014481 A CN 105014481A
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China
Prior art keywords
cutter
tool
portable
measurement instrument
curve
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CN201510489858.3A
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Chinese (zh)
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CN105014481B (en
Inventor
刘献礼
马晶
岳彩旭
刘强
王冠中
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Harbin University of Science and Technology
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Harbin University of Science and Technology
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Priority to CN201510489858.3A priority Critical patent/CN105014481B/en
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Publication of CN105014481B publication Critical patent/CN105014481B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; 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
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/09Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • B23Q17/0904Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool before or after machining
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; 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
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/09Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • B23Q17/0995Tool life management
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; 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
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/24Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
    • B23Q17/2404Arrangements for improving direct observation of the working space, e.g. using mirrors or lamps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; 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
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/24Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
    • B23Q17/2409Arrangements for indirect observation of the working space using image recording means, e.g. a camera

Abstract

The invention provides a portable tool wear measuring instrument and a method for predicting the remaining service life of a tool through the measuring instrument and relates to the technology of tool wear measurement. The problems that software/hardware systems of an existing tool wear measuring device is huge, installation and debugging are complex, the service life of a tool is mainly judged by human experience, and judgment is inaccurate are solved. An opening is formed in a shell and used for making the tool extend into the measuring instrument. Cameras and light source lamps are arranged on the periphery of the tool. The brand-new tool is used for cutting a workpiece multiple times according to specific cutting parameters till the tool face abrasion amount reaches the bluntness standard, and cutting time of each time and the tool face abrasion amount are recorded; and the cutting time of each time and the tool face abrasion amount are fitted into a curve through a data processing circuit, and the curve is a service life curve. The abrasion amount of the used tool is measured and compared with the service life curve, so that the service life of the tool is acquired. The portable tool wear measuring instrument is simple in structure, convenient to install and accurate in service life prediction.

Description

Portable cutter wear measurement instrument and adopt this measuring instrument to predict the method for cutter remaining life
Technical field
The present invention relates to tool wear measuring technique and cutter remaining life Predicting Technique.
Background technology
Existing tool wear measurement mechanism uses various signal transducer mostly, such as calibrate AE sensor, imageing sensor etc., by signal handling equipment, the signal obtained from sensor is processed, then terminal PC is sent to, whole tool wear measurement mechanism software/hardware system is huge, installation and debugging bother, be not suitable for using in actual production process, and before measuring, need blade to take off from knife bar to measure, not only waste the plenty of time, and easily cause secondary clamping error.
For the cutter occurring wearing and tearing, also do not have measurable its preferably can continue the cutter remaining life Forecasting Methodology of service time at present.Be based on artificial experience more than the judging of cutter life in working angles, cut after carrying out a period of time, cutter there will be wearing and tearing, and for occurring the cutter of wearing and tearing, its time of continuing to use also is difficult to determine.Owing to relying on the judgement of workman's experience inaccurate, the cutter that can occur can also continue to use goes out of use, or cutter has been scrapped also in the situation of carrying out cutting, thus causes cutter to be wasted or institute's processing work is defective and even scrap.And for the cutting of new material, cannot by virtue of experience judge to occur that the blade of wearing and tearing also can proceed the cutting time of cutting.
Summary of the invention
The object of the invention is to solve existing tool wear measurement mechanism software/hardware system huge, installation and debugging bother, be not suitable for using in actual production process, and the judgement of cutter life is main mainly with artificial experience, judge inaccurate problem, a kind of Portable cutter wear measurement instrument is provided and adopts this measuring instrument to predict the method for cutter remaining life.
Portable cutter wear measurement instrument of the present invention, comprises housing 1, data processing circuit 2, display screen 3, one or more camera 4, one or more illuminator 5 and battery 10;
Described housing 1 is provided with opening, described opening is for stretching in described Portable cutter wear measurement instrument by the cutter be arranged on lathe 6, camera 4 and illuminator 5 is provided with around cutter 6, it is inner that data processing circuit 2 and battery 10 are all arranged on housing 1, and display screen 3 is arranged on the outer surface of housing 1;
Battery 10 is for providing working power for described Portable cutter wear measurement instrument;
The picture signal input of the signal output part connection data treatment circuit 2 of camera 4, the data output end of data processing circuit 2 connects display screen 3.
Described measuring instrument also comprises retaining ring 8 and cutter bar clamp 9, retaining ring 8 is positioned at the open-topped outside of housing 1, and one end of retaining ring 8 is fixed on housing 1 top, the other end can rotate around the axis of retaining ring 8, cutter bar clamp 9 is arranged in the centre bore of retaining ring 8, and cutter bar clamp 9 center also arranges porose, and this hole is for placing knife bar 7, when retaining ring 8 rotates, the diameter of cutter bar clamp 9 can be changed.
The method of cutter remaining life is to adopt above-mentioned Portable cutter wear measurement instrument to predict: adopt Portable cutter wear measurement instrument to measure the knife face wear extent of cutter to be measured, described knife face wear extent is compared with the cutter life curve of this kind of cutter under corresponding workpiece material and cutting parameter, obtains the remaining life of this cutter to be measured;
Described life curve is obtained by following steps:
Step one, this kind of brand-new cutter is used repeatedly to cut described workpiece material under described cutting parameter, until knife face wear extent reaches blunt standard, record each time of cutting, and measure the knife face wear extent after each cutting;
The knife face wear extent of the time of at every turn cutting and correspondence is fitted to curve by step 2, data processing circuit 2, and this curve is the life curve that this kind of cutter corresponds to above-mentioned workpiece material and above-mentioned cutting parameter, and this life curve stores in the data store;
Step 3, change different types of cutter, cutting parameter and workpiece material, repeat above-mentioned steps one and step 2, obtain the life curve that different types of cutter corresponds to different workpieces material and different cutting parameter.
The present invention has following beneficial effect:
1, when carrying out wear measurement to cutter, only need by rotational lock ring, knife bar to be clamped by cutter bar clamp, after retaining ring locking knife bar, just can measure the wearing and tearing of cutter, do not need removal of inserts, avoid the secondary clamping error caused due to handling cutter.
2, structure of the present invention is simple, and it is convenient to realize, and does not have complicated software and hardware system, greatly saves the clamping time, improve efficiency in measuring process, is easy to use at processing site, is easy to promote.
3, can carry out predicting residual useful life to used cutter, predict the outcome accurately, the inaccurate cutter that can also continue to use that causes of deduction avoided due to workman's experience goes out of use, or cutter has been scrapped also in the situation of carrying out cutting.Decrease the situation that cutter is wasted, institute's processing work is defective or scrap.
4, data processing circuit 2 can carry out data fitting to obtained cutter life curve, and learning data is larger, and the degree of accuracy of prediction is higher.And final obtained cutter life curve is stored, for the use of cutter provides initial data.
5, obtained data can be stored in when Cutter wear is measured in inner computing chip by data processing circuit 2, and can facilitate and consult at any time, a large amount of data are laid in the analysis for Cutter wear.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Portable cutter wear measurement instrument described in embodiment one, and the column structure in figure above knife bar is machine tool chief axis;
Fig. 2 is based on Fig. 1, looks over the structural representation obtained from the direction of arrow;
Fig. 3 is the front view of the Portable cutter wear measurement instrument described in embodiment one;
Fig. 4 is the profile along A-A direction in Fig. 3;
Fig. 5 is the profile along B-B direction in Fig. 3;
Fig. 6 is the sectional view of the Portable cutter wear measurement instrument described in embodiment one;
Fig. 7 is the life curve in embodiment six;
Fig. 8 is the learning process figure of cutter life prediction in embodiment six.
Detailed description of the invention
Detailed description of the invention one: composition graphs 1 to Fig. 6 illustrates present embodiment, Portable cutter wear measurement instrument described in present embodiment, comprises housing 1, data processing circuit 2, display screen 3, one or more camera 4, one or more illuminator 5 and battery 10;
Described housing 1 top is provided with opening, described opening is for stretching in described Portable cutter wear measurement instrument by the cutter be arranged on lathe 6, camera 4 and illuminator 5 is provided with around cutter 6, it is inner that data processing circuit 2 and battery 10 are all arranged on housing 1, and display screen 3 is arranged on the outer surface of housing 1;
Battery 10 is for providing working power for described Portable cutter wear measurement instrument;
The picture signal input of the signal output part connection data treatment circuit 2 of camera 4, the data output end of data processing circuit 2 connects display screen 3.
Portable cutter wear measurement instrument described in present embodiment in use, does not need cutter to take off from lathe, only housing 1 need be enclosed within knife bar 7.Camera 4 is used for gathering the image of blade surface, and illuminator 5, for providing bright environment for camera 4, makes camera 4 can collect image clearly.The image collected is sent to data processing circuit 2 by camera 4, data processing circuit 2 pairs of images process, and calculate the data of the degree of wear, obtain knife face wear extent, and knife face wear extent is shown by display screen 3, also image can be shown in the lump.Data processing circuit 2 adopts existing computing chip and conventional image processing techniques to realize.Data processing circuit 2 can also storage figure picture, data in process and computational process.
Portable cutter wear measurement instrument compact structure described in present embodiment, installation process is simple and convenient, is highly suitable for the application in actual production process.Just can measure owing to not needing cutter to take off from lathe, avoid the error that secondary clamping brings.
Detailed description of the invention two: composition graphs 1 to Fig. 3, and Fig. 6 illustrates present embodiment, present embodiment is the further restriction to the Portable cutter wear measurement instrument described in embodiment one, in present embodiment, described measuring instrument also comprises retaining ring 8 and cutter bar clamp 9, retaining ring 8 is positioned at the open-topped outside of housing 1, and one end of retaining ring 8 is fixed on housing 1 top, the other end can rotate around the axis of retaining ring 8, cutter bar clamp 9 is arranged in the centre bore of retaining ring 8, cutter bar clamp 9 center also arranges porose, this hole is for placing knife bar 7, when retaining ring 8 rotates, the diameter of cutter bar clamp 9 can be changed.
As shown in Figure 1, retaining ring 8 and cutter bar clamp 9 are conventional structure, and cutter bar clamp 9 is along the circumferential direction divided into identical several parts, has gap between adjacent two parts.By knife bar 7 through cutter bar clamp 9, rotational lock ring 8, then the gap smaller between cutter bar clamp 9 each several part, clamps knife bar 7.
Detailed description of the invention three: composition graphs 1 to Fig. 3 illustrates present embodiment, present embodiment is the further restriction to the Portable cutter wear measurement instrument described in embodiment one, and in present embodiment, the side opening of described housing 1 has window.
Whether the window of housing 1 side can be used to observe measuring instrument and installs correctly, and can Real Time Observation measuring process.And owing to having this window, extraneous light can enter housing 1, thus suitably can reduce brightness or the quantity of illuminator 5, and then reduce the energy consumption of measuring instrument.
Detailed description of the invention four: composition graphs 1 illustrates present embodiment, present embodiment is the further restriction to the Portable cutter wear measurement instrument described in embodiment one, in present embodiment, the quantity of camera 4 is that 8,8 cameras 4 are evenly arranged in around cutter 6.
As shown in Figure 1,8 cameras 4 are divided into and are two-layerly up and down evenly distributed on cutter 6 around, and this distribution mode can from the surface image of multiple angle acquisition cutter 6, and the image aberration obtained is little, make the wear data that finally obtains more accurate.
Detailed description of the invention five: composition graphs 1 illustrates present embodiment, present embodiment is the further restriction to the Portable cutter wear measurement instrument described in embodiment four, in present embodiment, the quantity of illuminator 5 is that 4,4 illuminators 5 are evenly arranged in around cutter 6.
As shown in Figure 1, multiple illuminator 5 is evenly arranged in around cutter 6, makes the brightness of each position, cutter 6 surface substantially identical, avoids the error causing image procossing to bring because brightness is inconsistent, make the wear data that finally obtains more accurate.
Detailed description of the invention six: composition graphs 7 and Fig. 8 illustrate present embodiment, present embodiment is the method for the Portable cutter wear measurement instrument prediction cutter remaining life adopted described in embodiment one, the method is: adopt Portable cutter wear measurement instrument to measure the knife face wear extent of cutter to be measured, described knife face wear extent is compared with the cutter life curve of this kind of cutter under corresponding workpiece material and cutting parameter, obtains the remaining life of this cutter to be measured;
Described life curve is obtained by following steps:
Step one, this kind of brand-new cutter is used repeatedly to cut described workpiece material under described cutting parameter, until knife face wear extent reaches blunt standard, record each time of cutting, and measure the knife face wear extent after each cutting;
The knife face wear extent of the time of at every turn cutting and correspondence is fitted to curve by step 2, data processing circuit 2, and this curve is the life curve that this kind of cutter corresponds to above-mentioned workpiece material and above-mentioned cutting parameter, and this life curve stores in the data store;
Step 3, change different types of cutter, cutting parameter and workpiece material, repeat above-mentioned steps one and step 2, obtain the life curve that different types of cutter corresponds to different workpieces material and different cutting parameter.
Method described in present embodiment, focus on adopting the Portable cutter wear measurement instrument described in embodiment two to obtain the life curve that various cutter corresponds to different workpieces material and cutting parameter, i.e. learning process hereinafter described, this learning process is specially:
As shown in Figure 8, use new cutter A to cut workpiece material A under A group cutting parameter, cut a period of time t 1after, lathe suspends, with described Portable cutter wear measurement instrument measurement cutter tool flank wear VB now 1, then cut a period of time to t 2after, lathe suspends, with described Portable cutter wear measurement instrument measurement cutter tool flank wear VB now 2take multiple measurements in this way, until cutter tool flank wear VB reaches blunt standard, the cutter life forecasting software that now data processing circuit 2 is embedded in generates the relation curve of cutting time t and cutter tool flank wear VB automatically, i.e. cutter life curve, and by this cutter life profile memory in described internal calculation chip.In order to obtain cutter life curve more accurately, can adopt the mode of repetitive measurement, the cutter A more renewed, repeats above-mentioned measuring process, the multiple curves obtained is become a curve, i.e. cutter life curve.The cutter A more renewed, and change cutting parameter and workpiece material and repeat said process, repeat above measurement, the time interval of measurement can be different, show that cutter A corresponds to the cutter life curve of different workpieces material and different cutting parameter.Again cutter A is changed into the cutter B of other kinds, adopt said method measurement cutter B to correspond to the cutter life curve of different workpieces material and different cutting parameter.
For different workpiece materials, different machined parameters, different blades, Portable cutter wear measurement instrument is needed to learn in process of production, workpiece material, different machined parameters, different blade cutting tool life curves that final acquisition gained is different.
In measurement afterwards, for cutter A, under A group cutting parameter, workpiece material A is cut, Portable cutter wear measurement instrument described in using the cutter A after cutting certain hour is measured, compare measuring the knife face wear extent obtained with corresponding cutter life curve, just cutter A can be obtained under A group cutting parameter, the process time also can processed rapidoprint A, i.e. cutting-tool's used life.

Claims (6)

1. Portable cutter wear measurement instrument, it is characterized in that, it comprises housing (1), data processing circuit (2), display screen (3), one or more camera (4), one or more illuminator (5) and battery (10);
Described housing (1) top is provided with opening, described opening is for stretching in described Portable cutter wear measurement instrument by the cutter be arranged on lathe (6), cutter (6) is provided with camera (4) and illuminator (5) around, it is inner that data processing circuit (2) and battery (10) are all arranged on housing (1), and display screen (3) is arranged on the outer surface of housing (1);
Battery (10) is for providing working power for described Portable cutter wear measurement instrument;
The picture signal input of the signal output part connection data treatment circuit (2) of camera (4), the data output end of data processing circuit (2) connects display screen (3).
2. Portable cutter wear measurement instrument according to claim 1, it is characterized in that, described measuring instrument also comprises retaining ring (8) and cutter bar clamp (9), retaining ring (8) is positioned at housing (1) open-topped outside, and one end of retaining ring (8) is fixed on housing (1) top, the other end can rotate around the axis of retaining ring (8), cutter bar clamp (9) is arranged in the centre bore of retaining ring (8), cutter bar clamp (9) center also arranges porose, this hole is for placing knife bar (7), when retaining ring (8) rotates, the diameter of cutter bar clamp (9) can be changed.
3. Portable cutter wear measurement instrument according to claim 1, is characterized in that, the side opening of described housing (1) has window.
4. Portable cutter wear measurement instrument according to claim 1, is characterized in that, the quantity of camera (4) is that 8,8 cameras (4) are evenly arranged in cutter (6) around.
5. Portable cutter wear measurement instrument according to claim 4, is characterized in that, the quantity of illuminator (5) is that 4,4 illuminators (5) are evenly arranged in cutter (6) around.
6. adopt the method for Portable cutter wear measurement instrument according to claim 1 prediction cutter remaining life, it is characterized in that, the method is: adopt Portable cutter wear measurement instrument to measure the knife face wear extent of cutter to be measured, described knife face wear extent is compared with the cutter life curve of this kind of cutter under corresponding workpiece material and cutting parameter, obtains the remaining life of this cutter to be measured; Described cutter life curve negotiating following steps obtain:
Step one, this kind of brand-new cutter is used repeatedly to cut described workpiece material under described cutting parameter, until knife face wear extent reaches blunt standard, record each time of cutting, and measure the knife face wear extent after each cutting;
The time of at every turn cutting and corresponding knife face wear extent are fitted to curve by step 2, data processing circuit (2), this curve is the life curve that this kind of cutter corresponds to above-mentioned workpiece material and above-mentioned cutting parameter, and this life curve stores in the data store;
Step 3, change different types of cutter, cutting parameter and workpiece material, repeat above-mentioned steps one and step 2, obtain the life curve that different types of cutter corresponds to different workpieces material and different cutting parameter.
CN201510489858.3A 2015-08-11 2015-08-11 Portable tool wear measuring instrument and method for predicting remaining service life of tool through measuring instrument Expired - Fee Related CN105014481B (en)

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CN106736859A (en) * 2017-01-19 2017-05-31 株洲钻石切削刀具股份有限公司 Turning insert service life control methods
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CN111185803A (en) * 2020-02-25 2020-05-22 苏州奥泰智能装备有限公司 In-place posture adjusting method for worn cutter
CN111571307A (en) * 2020-05-14 2020-08-25 哈尔滨理工大学 On-machine detection device for cutter abrasion
CN111649649A (en) * 2020-04-17 2020-09-11 江阴兴澄特种钢铁有限公司 Online measuring device and replacement prediction method for outer diameter of continuous casting long sleeve
CN112313049A (en) * 2018-07-31 2021-02-02 比克维奥莱克斯公司 Device for evaluating the condition of a razor cartridge

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Cited By (12)

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Publication number Priority date Publication date Assignee Title
CN105758656A (en) * 2016-01-25 2016-07-13 西南交通大学 Safety management system for high-speed train braking component
CN107870606A (en) * 2016-09-28 2018-04-03 波音公司 For automating concentration compliance, operation and the method and apparatus of setting of cutting element machine
CN106736859A (en) * 2017-01-19 2017-05-31 株洲钻石切削刀具股份有限公司 Turning insert service life control methods
CN112313049A (en) * 2018-07-31 2021-02-02 比克维奥莱克斯公司 Device for evaluating the condition of a razor cartridge
CN112313049B (en) * 2018-07-31 2022-07-05 比克维奥莱克斯公司 Device for a shaver
CN110961986A (en) * 2018-09-28 2020-04-07 兄弟工业株式会社 Tool life management device, machine tool, and display processing method
CN109877650A (en) * 2019-04-15 2019-06-14 重庆大学 A kind of sheared blank cutter life prediction technique
CN109877650B (en) * 2019-04-15 2021-01-29 重庆大学 Method for predicting service life of bar shearing tool
CN111185803A (en) * 2020-02-25 2020-05-22 苏州奥泰智能装备有限公司 In-place posture adjusting method for worn cutter
CN111185803B (en) * 2020-02-25 2021-09-14 苏州奥泰智能装备有限公司 In-place posture adjusting method for worn cutter
CN111649649A (en) * 2020-04-17 2020-09-11 江阴兴澄特种钢铁有限公司 Online measuring device and replacement prediction method for outer diameter of continuous casting long sleeve
CN111571307A (en) * 2020-05-14 2020-08-25 哈尔滨理工大学 On-machine detection device for cutter abrasion

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