CN103894883B - Cutter distortion measured material and utilize this fixture to carry out cutter distortion On-line Measuring Method - Google Patents

Cutter distortion measured material and utilize this fixture to carry out cutter distortion On-line Measuring Method Download PDF

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Publication number
CN103894883B
CN103894883B CN201410128660.8A CN201410128660A CN103894883B CN 103894883 B CN103894883 B CN 103894883B CN 201410128660 A CN201410128660 A CN 201410128660A CN 103894883 B CN103894883 B CN 103894883B
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China
Prior art keywords
cutter
positioning disc
nut
sensor
firm banking
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Expired - Fee Related
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CN201410128660.8A
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Chinese (zh)
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CN103894883A (en
Inventor
张定华
张笑凡
罗明
吴宝海
张莹
王骏腾
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Northwestern Polytechnical University
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Northwestern Polytechnical University
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Priority to CN201410128660.8A priority Critical patent/CN103894883B/en
Publication of CN103894883A publication Critical patent/CN103894883A/en
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    • 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
    • B23Q17/0952Arrangements 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 during machining

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

The invention discloses a kind of cutter distortion measured material and utilize this fixture to carry out cutter distortion On-line Measuring Method, for solving the technical problem of the device poor practicability of existing real-time monitoring lathe cutting force.Technical scheme is that fixture includes semi-circular clamp ring, positioning disc, sensor firm banking and displacement transducer.Two semi-circular clamp rings and the retained part of positioning disc composition fixture, circular hole is had to facilitate cutter to pass in the middle of positioning disc, sensor firm banking is connected the fixing connection of screw rod with positioning disc by four, sensor firm banking radially has circular hole and is spaced 90 ° of arrangements with installation position displacement sensor, four displacement transducers along cutter radial.During Tool in Cutting, the XY durection component of be deformed amount recorded industrial computer system by four displacement transducers, and by visual software interface in real time, show intuitively;Cutter cutting force size on deformation direction can be extrapolated according to the cutter distortion amount in the course of processing, practical.

Description

Cutter distortion measured material and utilize this fixture to carry out cutter distortion On-line Measuring Method
Technical field
The present invention relates to a kind of measured material, particularly relate to a kind of cutter distortion measured material.Further relate to utilize this Fixture carries out cutter distortion On-line Measuring Method.
Background technology
In modern manufacturing industry, multi-axis NC Machine Tools is high due to its good processing accuracy, work efficiency height and automaticity It is used widely etc. feature.In the course of processing, play the cutter of main elaboration at cutting force and the shadow of heat in metal cutting Can be deformed under Xianging, thus directly result in part to be processed and produce size and dimension error.In order to reduce cutter distortion, The method generally used has reduction handle of a knife free end length or uses the cutter of larger diameter instead.But these methods have it Limitation, it is impossible to inherently eliminate error.In order to study cutter distortion theoretically, come by Optimizing Cutting Conditions Reduce mismachining tolerance.Therefore it is the most necessary for cutter distortion amount being carried out on-line measurement.
The method of the on-line measurement cutter distortion used at present mainly has direct method and indirect method.
Direct method is that foil gauge is adhered directly to tool surface.Owing to cutter produces under cutting force and heat in metal cutting effect During deformation, tool surface can produce material stretching and extruding accordingly, and the stretching of material and extruding can be converted by foil gauge For the corresponding signal of telecommunication, it is hereby achieved that the deflection that cutter produces in the course of processing.But the method exist with Lower weak point: first foil gauge is suitable for sticking to smooth and sizeable body surface, is suitable for lathe tool class cutter, The method then cannot be used for cylindrical milling cutter or undersized cutter;Secondly foil gauge and wire form back Road, due to the existence of wire loop, the method is suitable only for the static processing method of cutter (such as turnery processing), uncomfortable Close the processing mode that the cutters such as Milling Process rotate;It addition, the degree of accuracy of the deflection of measured cutter and foil gauge Installation quality is closely related.
Indirect method is at cutter on material after process finishing, by measuring between surplus material size and theoretical size Error, thus deflection when inverse draws tool sharpening.Here machined material typically uses on-deformable knot Structure, impact result caused to reduce material itself to deform.The indirect method of measurement is disadvantageous in that, by residue Material error speculates that the limitation of cutter distortion amount is relatively big, exists the most not enough over time and space, and measures knot Really error is bigger.
With reference to Fig. 5.The document Chinese invention patent of CN103029005A " application publication number be " disclose a kind of in real time The device of monitoring lathe cutting force.This invention includes foil gauge 1, signal receiving module 2, control unit 3, power supply 4 With display device 5.Foil gauge 1 is attached to the left and right sides of cutter 6, signal receiving module 2 simultaneously with foil gauge 1 and Control unit 3 connects, and control unit 3 is connected with power supply 4 and display display device 5 respectively.This device is at cutter table Foil gauge 1 is installed in face, monitors deformation during Tool in Cutting material by foil gauge 1, thus when drawing cutting, lathe is cut Cut the size of power.Cutter distortion measuring method in this patent belongs to the direct method of measurement, and it is limited in that, owing to leading The existence of line loop, the method is not suitable for measuring the cutter of the rotations such as milling cutter.
Summary of the invention
In order to overcome the deficiency of the device poor practicability of existing real-time monitoring lathe cutting force, the present invention provides a kind of cutter Tool deformation measurement clamp.This fixture includes semi-circular clamp ring, positioning disc, sensor firm banking and displacement sensing Device, two semi-circular clamp rings and the retained part of positioning disc composition fixture, have circular hole with side in the middle of positioning disc Just cutter passes, and sensor firm banking is connected the fixing connection of screw rod with positioning disc by four, and the end fixed by sensor Seat radially has circular hole and is spaced 90 ° of arrangements with installation position displacement sensor, four displacement transducers along cutter radial.Cutter During cutting, the XY durection component of be deformed amount is recorded on industrial computer system by four displacement transducers, and By visual software interface in real time, show intuitively;Cutter can be extrapolated according to the cutter distortion amount in the course of processing Tool cutting force size on deformation direction, practical.
The present invention also provides for utilizing above-mentioned fixture to carry out cutter distortion On-line Measuring Method.
The technical solution adopted for the present invention to solve the technical problems is: a kind of cutter distortion measured material, its feature It is to include semi-circular clamp ring the 1, first bolt the 2, first nut 3, positioning disc the 4, second bolt 5, connection spiral shell Bar the 6, second nut 7, sensor firm banking the 8, the 3rd nut 9 and displacement transducer 10.Two semi-circular clamp Ring 1 and positioning disc 4 form the retained part of fixture.Semi-circular clamp ring 1 two ends have circular hole, by the first spiral shell Bolt 2 and the first nut 3 are tightened fixing;Circular hole is had to facilitate cutter to pass in the middle of positioning disc 4.Sensor is fixed Base 8 radially has circular hole and is spaced 90 ° with installation position displacement sensor 10, four displacement transducers 10 along cutter radial Arrangement;Displacement transducer 10 is threaded self, tightens fixing and adjustable range by the 3rd nut 9.Sensor is solid Determine base 8 and be connected the fixing connection of screw rod 6 with positioning disc 4 by four.
The radius of described semi-circular clamp ring 1 is slightly larger than machine tool chief axis radius.
There is rubber layer the inner side of described semi-circular clamp ring 1.
The shape of described positioning disc 4 is consistent with main shaft bottom shape to coordinate location.
There is screw thread at described connection screw rod 6 two ends, and sensor firm banking 8, with boss, is pacified by the location on boss Dress hole and the second nut 7 coordinate to be installed.
One utilizes above-mentioned fixture to carry out cutter distortion On-line Measuring Method, be characterized in use following steps:
First with the first bolt 2 and the first nut 3, two semi-circular clamp rings 1 are pre-fixed on machine tool chief axis, then lead to Cross the second bolt 5, with coordinating of positioning disc 4, being horizontally mounted of guarantee retained part is installed;Then by connecting screw rod Sensor firm banking 8 is connected by 6 with positioning disc 4, tightens and fixes the second nut 7 to ensure whole device tool There is good rigidity;Finally displacement transducer 10 is arranged in the installing hole of sensor firm banking 8, passes through displacement Self threaded adjusting of sensor 10 measures the head distance to machine tool surface, and fixes with the 3rd nut 9 so that it is In the range ability of displacement transducer 10;Displacement transducer 10 gathers the displacement data measuring head to the flank of tool;Open Dynamic Digit Control Machine Tool starts to process part, and now during Tool in Cutting, the XY durection component of be deformed amount passes through four positions Displacement sensor 10 is recorded on industrial computer system, calculates cutter in deformation according to the cutter distortion gauge in the course of processing Cutting force size on direction, and by with desired cut power relatively carry out feedback adjustment numerical control machine tool cutting parameter.
The invention has the beneficial effects as follows: this fixture include semi-circular clamp ring, positioning disc, sensor firm banking and Displacement transducer, two semi-circular clamp rings and the retained part of positioning disc composition fixture, have in the middle of positioning disc Circular hole is to facilitate cutter to pass, and sensor firm banking is connected the fixing connection of screw rod, sensing with positioning disc by four Device firm banking radially has circular hole and is spaced 90 ° of rows with installation position displacement sensor, four displacement transducers along cutter radial Row.During Tool in Cutting, the XY durection component of be deformed amount is recorded to industrial computer system by four displacement transducers On system, and by visual software interface in real time, show intuitively;Permissible according to the cutter distortion amount in the course of processing Extrapolate cutter cutting force size on deformation direction, practical.
With embodiment, the present invention is elaborated below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation of cutter distortion measured material of the present invention.
Fig. 2 is the top view of cutter distortion measured material of the present invention.
Fig. 3 is the front view of cutter distortion measured material of the present invention.
Fig. 4 is the left view of cutter distortion measured material of the present invention.
In figure, 1-semi-circular clamp ring, 2-the first bolt, 3-the first nut, 4-positioning disc, 5-the second bolt, 6- Connect screw rod, 7-the second nut, 8-sensor firm banking, 9-the 3rd nut, 10-displacement transducer.
Fig. 5 is the structural representation of the device of a kind of real-time monitoring lathe cutting force of background technology.
In figure, 1-foil gauge, 2-signal receiving module, 3-control unit, 4-power supply, 5-display device, 6-cutter.
Detailed description of the invention
With reference to Fig. 1-4.Cutter distortion measured material of the present invention includes semi-circular clamp ring the 1, first bolt the 2, first spiral shell Mother 3, positioning disc the 4, second bolt 5, connection screw rod the 6, second nut 7, sensor firm banking the 8, the 3rd spiral shell Mother 9 and displacement transducer 10.
Two semi-circular clamp rings 1 and positioning disc 4 form the retained part of fixture.Semi-circular clamp ring 1 two ends are opened There is circular hole, tighten fixing by the first bolt 2 and the first nut 3;Semi-circular clamp ring 1 radius is slightly larger than lathe master Axle radius, there is rubber layer inner side with increasing friction force;Circular hole is had to facilitate cutter to pass in the middle of positioning disc 4;Fixed The shape of circle of position dish 4 is consistent with main shaft bottom shape to coordinate location.
Displacement transducer standing part is the sensor firm banking 8 with boss.Sensor firm banking 8 radially leaves Circular hole is had to be spaced 90 ° of arrangements with installation position displacement sensor 10, four displacement transducers 10 along cutter radial;Displacement sensing Device 10 is threaded self, tightens fixing and adjustable range by the 3rd nut 9.
Connecting screw rod 6 two ends and have screw thread, sensor firm banking 8 is with boss, by the location and installation on boss Hole and the second nut 7 coordinate to be installed.It is solid that sensor firm banking 8 is connected screw rod 6 with positioning disc 4 by four Fixed connection.
The assembling process of this example is: first with the first bolt 2 and the first nut 3 by pre-solid for two semi-circular clamp rings 1 It is scheduled on machine tool chief axis, then is pacified with the level installing guarantee retained part that coordinates of positioning disc 4 by the second bolt 5 Dress;Then by connection screw rod 6, sensor firm banking 8 is connected with positioning disc 4, tightens and fix the second spiral shell Female 7 to ensure that whole device has good rigidity;Finally displacement transducer 10 is arranged on sensor firm banking 8 Installing hole in, measure head to the distance on machine tool surface by self threaded adjusting of displacement transducer 10, and with the Three nuts 9 are fixed so that it is in the range ability of displacement transducer 10.
The measuring method of the present invention is as follows: after whole cutting tools measurement fixture installation, by displacement transducer 10 Self threaded adjusting measures the head distance to machine tool surface so that it is in the range ability of displacement transducer 10;Open Open displacement transducer 10, and charge amplifier and industrial computer, start to gather the displacement data measuring head to the flank of tool; Starting Digit Control Machine Tool to start to process part, now during Tool in Cutting, the XY durection component of be deformed amount passes through four Displacement transducer 10 is recorded on industrial computer system, and by visual software interface in real time, show intuitively;Root Cutter cutting force size on deformation direction can be extrapolated according to the cutter distortion amount in the course of processing, and by with reason That discusses cutting force relatively carrys out feedback adjustment numerical control machine tool cutting parameter;After machining, the deformation data of cutter is automatic It is stored on industrial computer hard disk for post analysis research.

Claims (5)

1. a cutter distortion measured material, it is characterised in that include semi-circular clamp ring (1), the first bolt (2), First nut (3), positioning disc (4), the second bolt (5), connection screw rod (6), the second nut (7), sensing Device firm banking (8), the 3rd nut (9) and displacement transducer (10);Two semi-circular clamp rings (1) and location The retained part of disk (4) composition fixture;Semi-circular clamp ring (1) two ends have circular hole, by the first bolt (2) Tighten fixing with the first nut (3);Circular hole is had to facilitate cutter to pass in the middle of positioning disc (4);Sensor is solid Determining base (8) and radially have a circular hole with installation position displacement sensor (10), four displacement transducers (10) are along cutter footpath To the 90 ° of arrangements in interval;Displacement transducer (10) is threaded self, by displacement transducer (10) self screw thread The head distance to machine tool surface is measured in regulation, and fixes with the 3rd nut (9);Sensor firm banking (8) It is connected the fixing connection of screw rod (6) by four with positioning disc (4).
Cutter distortion measured material the most according to claim 1, it is characterised in that: described semi-circular clamp ring (1) Radius slightly larger than machine tool chief axis radius.
Cutter distortion measured material the most according to claim 1 and 2, it is characterised in that: described semi-circular clamp There is rubber layer the inner side of ring (1).
Cutter distortion measured material the most according to claim 1, it is characterised in that: described positioning disc (4) Shape consistent with main shaft bottom shape in case coordinate location.
Cutter distortion measured material the most according to claim 1, it is characterised in that: described connection screw rod (6) There is screw thread at two ends, and sensor firm banking (8) is with boss, by the location and installation hole on boss and the second nut (7) Coordinate and install.
CN201410128660.8A 2014-04-01 2014-04-01 Cutter distortion measured material and utilize this fixture to carry out cutter distortion On-line Measuring Method Expired - Fee Related CN103894883B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106670893A (en) * 2017-01-20 2017-05-17 山东大学 Measuring device following with Z-axis movement of processing cutter for deformation amount of end milling cutter during spiral hole-milling process

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CN104526464B (en) * 2014-11-27 2016-08-31 华中科技大学 A kind of cutter jerk value and the measuring method of blade initial angle and device
CN105563235B (en) * 2016-02-03 2017-06-27 吉林大学 Piezoelectric type full angle load detecting device
CN105773310B (en) * 2016-03-17 2018-05-25 天津大学 For the real-time monitoring device and method of Cutting Force Signal in process
CN106705878B (en) * 2017-01-20 2017-08-29 山东大学 The measurement apparatus of solid end mill deflection in a kind of helical milling process
CN110695766A (en) * 2018-07-10 2020-01-17 先驰精密仪器(东莞)有限公司 Cutter state detection system
CN109396956B (en) * 2018-11-06 2020-04-07 重庆大学 Intelligent monitoring method for hob state of numerical control gear hobbing machine
KR102601619B1 (en) * 2018-11-12 2023-11-13 삼성전자주식회사 Polishing pad monitoring method and polishing pad monitoring apparatus
CN110370168A (en) * 2019-06-14 2019-10-25 武汉船用机械有限责任公司 The clamp for machining of gas turbine damper
CN111571307B (en) * 2020-05-14 2021-11-02 哈尔滨理工大学 On-machine detection device for cutter abrasion
CN112254833B (en) * 2020-09-30 2024-09-10 中核核电运行管理有限公司 Nuclear reactor HALF anchor clamps installation clearance on-line measuring device

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CN202192504U (en) * 2011-07-26 2012-04-18 安徽全柴动力股份有限公司 Tool setting checking fixture for adjusting diesel engine crankshaft hole boring tool
CN202780712U (en) * 2012-09-17 2013-03-13 东北大学 Fixture special for displacement sensor for measuring cutting force in turn-milling combined machining
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GB1329120A (en) * 1970-12-15 1973-09-05 Werkzeugmasch Okt Veb Machine tool incorporating an apparatus for measuring cutting forces
CN1032395A (en) * 1987-09-15 1989-04-12 大连工学院 Shank type of tridimensional dynameter using piezoelectric quartz for lathe turning
CN1058365A (en) * 1990-07-25 1992-02-05 南京航空学院 Be applicable to the measuring method of turning force of production scene
CN2273404Y (en) * 1996-07-30 1998-01-28 中国科学院西安光学精密机械研究所 Sensor clamp
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Publication number Priority date Publication date Assignee Title
CN106670893A (en) * 2017-01-20 2017-05-17 山东大学 Measuring device following with Z-axis movement of processing cutter for deformation amount of end milling cutter during spiral hole-milling process
CN106670893B (en) * 2017-01-20 2017-09-19 山东大学 The measurement apparatus of slotting cutter deflection in a kind of helical milling process being servo-actuated with process tool Z-direction

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