CN104289974B

CN104289974B - The ultrasonic automatic detection accessory of numerical control of machine tools and the time synchronization control method completed thereof

Info

Publication number: CN104289974B
Application number: CN201410295377.4A
Authority: CN
Inventors: 张吉堂; 谭继东; 张永贵; 郭平英
Original assignee: North University of China
Current assignee: North University of China
Priority date: 2014-06-27
Filing date: 2014-06-27
Publication date: 2017-01-04
Anticipated expiration: 2034-06-27
Also published as: CN104289974A

Abstract

The invention belongs to the technical field of ultrasonic automatic detection, be specifically related to the ultrasonic automatic detection accessory of a kind of numerical control of machine tools and the time synchronization control method completed thereof, solve the problem that existing ultrasonic Automatic Measurement Technique exists.It utilizes lathe as detection platform, parts, ultrasonic wave added exploring block, ultrasonic coupling parts and numerical control parts is received including ultrasound emission, described method, in adnexa the gesture stability of probe and ultrasonic transmitting receive be by " time synchronized method " realize with lathe work collaborative.Present invention employs the thought of production family design, can quickly design and manufacture and can meet dissimilar, the kind of different model lathe needs, the present invention can be quickly mounted on lathe, adnexa and lathe collaborative work is controlled, it is achieved the workpiece online ultrasound detection in the course of processing by " the time synchronized method " proposed.

Description

The ultrasonic automatic detection accessory of numerical control of machine tools and the time synchronization control method completed thereof

Technical field

The invention belongs to the technical field of ultrasonic automatic detection, be specifically related to a kind of ultrasonic automatic detection accessory of numerical control of machine tools And the time synchronization control method completed, it utilizes lathe as detection platform, expands the scope of application of lathe, make difference The lathe of kind has online ultrasonic automatic detection function.

Background technology

Along with in commercial production quality mind improve constantly the increasing with the market competitive pressure, Dynamic Non-Destruction Measurement is entirely Face quality control increasingly plays very important effect.And ultrasound detection this most widely used general, use frequency the highest Dynamic Non-Destruction Measurement, by means of computer technology, automatic control technology, electronic technology, electromechanical integration technology, signal processing skill Arts etc. just develop towards digitized, image conversion, intellectuality and automation direction, embody a concentrated reflection of research and development digitized, image Change, intelligentized automatic checkout system.But the development of Automatic Measurement Technique there is the following problem:

1, ultrasonic automatic checkout equipment investment cost is high, often wants hundreds of thousands, millions of the most up to ten million, and the biggest Majority is to be at most the closed dedicated system of several examined workpiece for a certain kind, and detection object range is narrow, poor universality, inspection Survey cost is high.

2, ultrasonic automatic detection is sensor, machinery, electronics, control, computer, signal processing, image procossing and display Integrated etc. multiple technologies, its technical sophistication degree is higher, and development difficulty is bigger.

3, the ultrasound detection of part completes on different devices with processing, adds the non-cutting time of detection, reduces Detection efficiency, adds testing cost.

4, the middle-and-high-ranking technical staff of ultrasound detection professional contingent and higher level operation personnel's proportion are less, hinder ultrasonic The application of Automatic Measurement Technique and development.

Due to the existence of the problems referred to above, current ultrasonic Automatic Measurement Technique is also mainly used in some defects and has a strong impact on it Service behaviour even causes the component of catastrophic effect, such as fields such as Aeronautics and Astronautics, weapons, boats and ships, nuclear industry and petroleum pipelines The detection of some key members and monitoring, and substantial amounts of common parts is not detected, even if detection also rests on mostly In the manual inspection stage, use the little of Automatic Measurement Technique.

Summary of the invention

The present invention is to solve the problems referred to above that existing ultrasonic Automatic Measurement Technique exists, it is provided that a kind of numerical control of machine tools surpasses The automatic detection accessory of sound and the time synchronization control method completed thereof.

The present invention adopts the following technical scheme that realization:

The ultrasonic automatic detection accessory of numerical control of machine tools, it is characterised in that its utilize lathe as detection platform, including ultrasonic Penetrate reception parts, ultrasonic wave added exploring block, ultrasonic coupling parts and numerical control parts；

Described ultrasound emission receives parts and includes that ultrasonic probe and ultrasound emission receive device；

Described ultrasonic wave added exploring block includes the detection that the cutter standard mounting interface with institute use lathe matches Adnexa location and installation interface module, ultrasonic coupling positioning parts mounting interface and additional scanning motion module；

Additional scanning motion module includes power plant module and without degree of freedom sweep mechanism and/or there is degree of freedom scanner unit Structure；Sweep mechanism without degree of freedom includes being installed on ultrasonic probe the connector on lathe handle of a knife, has the degree of freedom sweep mechanism to be Fixed length sweep mechanism and/or have degree of freedom conventional sweep mechanism；Fixed length sweep mechanism can auxiliary machine bed motion to surface of the work During point, probe keeps constant relative to this some distance in rotation process, and fixed length sweep mechanism includes parallelogram sweep mechanism And/or space imaginary point sweep mechanism；Parallelogram sweep mechanism and space imaginary point sweep mechanism include one-level degree of freedom and/or Two grades of degree of freedom sweep mechanisms；Parallelogram sweep mechanism includes the most hinged common base, bar one, bar two and slides Bar, the extension of the extension of common base, bar one, bar two and sliding bar forms parallelogram, the extension of common base The intersection point of the extension of section and sliding bar overlaps with test point, and ultrasonic probe is installed on sliding bar, common base and machine tool Handle connects；

Space imaginary point sweep mechanism includes support arm and rotating turning arm, and turning arm is installed ultrasonic probe, ultrasonic Probe moves along the movement locus with test point fixed length distance, and support arm is connected with lathe handle of a knife, and space imaginary point sweep mechanism is Imaginary point circle scan mechanism and/or imaginary point are across workpiece sweep mechanism；

There is degree of freedom conventional sweep mechanism for conventional across workpiece single-degree-of-freedom sweep mechanism and/or conventional single-degree-of-freedom edge Sweep mechanism；

Described ultrasonic coupling parts, including for realize different size probe location and installation probe install module and It is used for realizing the ultrasound couple device of ultrasonic coupling between workpiece and probe；

Described numerical control parts be control ultrasonic to launch receptions, ultrasonic coupling, additional scanning move and with Digit Control Machine Tool Main scanning campaign is worked in coordination with mutually.

Described parallelogram one-level degree of freedom sweep mechanism includes that sprinkler part I, sprinkler part I are pacified by slider I Being loaded on sliding bar and fastened by screw, axle three is connected with sliding bar, and axle three is pivotally mounted on bar two by bearing, Gear six is installed on axle three, and gear five is installed on bar two by axle, and gear four is connected with bar one, and axle two is connected with bar two, And axle two is pivotally mounted on bar one by bearing, gear three is connected with axle two, and gear two is installed on bar one by axle, tooth Wheel one is connected with common base, and axle one is connected with bar one, and axle one is pivotally mounted on common base by bearing；Gear two is same Time engage with gear one and gear three, gear five engages with gear four and gear six simultaneously, and bar one is parallel with sliding bar；Public base Seat is installed on pedestal, and pedestal is directly mounted at the knife rest platform of lathe.

Two grades of degree of freedom sweep mechanisms of parallelogram, what replacement pedestal was directly connected with lathe handle of a knife is to pass through on pedestal Bearing is provided with lathe connection handle, and the lathe connection handle other end is installed on the knife rest platform of lathe, and band moving base connects around lathe Handle motor in relative rotation is also installed on pedestal.

Described space imaginary point sweep mechanism is imaginary point edge one-level degree of freedom sweep mechanism, and it includes sprinkler part II, Sprinkler part II is installed on slide II by contiguous block II, and slide II location and installation is on support arm one and to pass through screw tight Gu, slide II can slide on support arm one, and support arm one is locked in rotating shaft II and by screw by key location and installation Tightly, rotating shaft II is pivotally mounted on support arm two by bearing one, and rotating shaft II is connected with belt wheel one by key, and belt wheel two passes through Key is connected with motor one, and motor one is by screw location and installation in mounting seat, and mounting seat passes through screw location and installation in support On arm two, belt wheel one is connected with belt wheel dual-purpose cog belt, and bearing one is pressed on support arm two by bearing (ball) cover II and positions in hole, Support arm two is installed with on support arm three by screw, and support arm three is installed on support base, support base location and installation in On the knife rest platform of lathe.

Two grades of imaginary point edge degree of freedom sweep mechanism, replaces support arm three to be installed on support base: support arm two Installing reinforcement, location and installation motor two on support arm three with on support arm three by screw, motor two is by bonded belt wheel Three, lathe connection handle II by bearing location and installation on support arm three, its end, one end positioning seat and bolt fix, belt wheel Four by bonded on lathe connection handle II, and belt wheel three is connected with cog belt with belt wheel four, and lathe connection handle II other end is pacified Being loaded on the knife rest platform of lathe, the centrage of lathe connection handle II intersects with the centrage of rotating shaft II.

Described space imaginary point sweep mechanism be imaginary point across workpiece sweep mechanism, including sprinkler part III, sprinkler part III Being installed on pivotal support arm connecting rod by contiguous block III, pivotal support arm connecting rod is installed on the outer end of pivotal support arm, rotates Support arm is positioned in the chute of slide III, and can slide in the chute that slide III and slide end cap two form, and utilizes tightening Pivotal support arm is fixed by screw III, and slide III is connected with hollow axle by screw, and hollow axle is installed on by bearing III In adjustable support arm, hollow axle is connected with motor III by key, and bearing III is pressed on adjustable support arm III by bearing (ball) cover III In hole, location, adjustable support arm III is positioned in the chute of slide III, and the chute that can form at slide III and slide end cap two Middle slip, utilizes holding screw to be fixed adjustable support arm III, and slide III is installed on support seat III by screw, supports Seat III is installed on support base III by screw, is arranged on support seat III by screw by reinforcement III, will support base III location and installation is on the knife rest platform of lathe.

Described routine is installed on the outer end of pivotal support arm replaces across workpiece single-degree-of-freedom sweep mechanism, pivotal support arm connecting rod The inner of pivotal support arm it is installed on behalf of pivotal support arm connecting rod.

Described conventional single-degree-of-freedom circle scan mechanism includes that sprinkler part IV, sprinkler part IV are installed on by slide block IV On cursor slide, can slide, locked by screw IV on cursor slide, cursor slide IV location and installation is in rotating shaft IV, and bearing is passed through in rotating shaft IV Location and installation, on support arm IV 1, compresses with bearing door IV, makes the bearing IV can be relative to support arm IV 1 rotation, motor IV Location and installation is on motor cabinet, and is connected with rotating shaft IV, motor cabinet by screw location and installation on support arm IV 1, support arm IV 1 are connected with support arm IV by screw, and support arm IV 2 is installed in support base IV by screw, supports base IV fixed Position is installed on the knife rest platform of lathe.

The present invention uses cutting fluid to realize following of coupling liquid as coupling liquid, the cutting fluid blood circulation utilizing lathe to carry Ring, ultrasound couple device includes two branch roads being connected with machine cut liquid pump, detection branch and processing branch road, detection branch pipeline On be sequentially installed with choke valve, filter, air relief valve and effusion meter constitute coupling liquid purifier, coupling liquid purifier is even Connecing sprinkler part, processing bypass line installs choke valve and nozzle successively, sprinkler part includes nozzle and chamber body, chamber shape Sprinkler part locating interface is set bottom body, sprinkler part locating interface has chute ultrasonic probe is installed.

The time synchronization control method that the ultrasonic automatic detection accessory of numerical control of machine tools completes, in adnexa probe gesture stability and Ultrasonic transmitting receive be by " time synchronized method " realize with lathe work collaborative, time synchronized method, first develop control The NC code of lathe processed, then calculates the probe movement time to each test point according to code, when lathe starts to perform NC generation During code motion, adnexa can obtain probe detection position at a time by timing, thus control probe and keep corresponding inspection Survey attitude and control the transmitting reception of ultrasound wave, to realize the probe ultrasonic scanning detection to workpiece,

Specifically comprise the following steps that

A. utilize lathe universal numerical control programmed method to develop " machine tooling NC code ", then calculate according to machining code Generate " NC code is used in lathe detection " and " adnexa NC code "；

B. " lathe detection NC code " is passed to Digit Control Machine Tool；

C. " adnexa NC code " is passed to the numerical control parts of adnexa；

D. workpiece coordinate system set up by lathe, returns detection reference point；

E. adnexa starts whether to monitor lathe from detection reference point setting in motion；

F. lathe performs " NC code is used in lathe detection " setting in motion；

G. the synchronization sensor being installed on detection reference point detects that signal, adnexa start adjust probe attitude and detect；

H. detect complete, computer disposal detection data, draw testing result.

Present invention employs the thought of modularized design, can quickly design and manufacture and can meet dissimilar, different shaped The kind that number lathe needs, is arranged on lathe use in a plug-and-play manner.This adnexa is carried out modularized design is exactly By the unit of function same on this adnexa, be designed to module that several have different performance, that selection can be exchanged, according to The needs at family, select and are combined into difference in functionality or function is identical but product that performance, specification are different.If Figure 37 is decomposition module Figure.

The method of the invention,

1, " machine tooling NC code " is ultrasonic probe as one common " process tool ", processes with universal numerical control The Machine Tool Control of programmed method establishment, such as the NC code that programmed method or automatic programming method are worked out by hand." lathe adds Work NC code " programmed method: numerically controlled lathe (feed motion is X-axis, 2 degree of freedom of Z axis) can use 4 axle milling machine (X-axis, Y Axle, Z axis, B axle, and Y=0) preparation method establishment.3 axles, 4 Shaft and NC Machining Test milling machines use 5 axles (3 translation shaft, 2 rotations Axle) programmed method establishment.

2, " the lathe detection NC code " extracted according to " machine tooling NC code " remains as the discernible NC of lathe Code so that machine tool motion can be controlled by NC code during detection.

3, " adnexa NC code " is main calculates machine tool motion to surface of the work each position according to " machine tooling NC code " The reference foundation that works asynchronously as adnexa of temporal information.

The invention has the beneficial effects as follows, the various workpiece can processed lathe are before manufacturing procedure, manufacturing procedure Carry out ultrasonic automatic detection after centre or manufacturing procedure, find the defect existing for inside workpiece in time, advantageously ensure The workmanship of workpiece.Meanwhile, this technology uses scanning motion and the profit that lathe realizes between examined workpiece and detector By conventional digital control programming method establishment control program, reduce cost of investment and the technical difficulty realizing detection automatically；And Decrease place conversion and the time of multiple clamping, improve the detection speed of workpiece, decrease operating cost.

Figure of description

The ultrasonic automatic detection accessory of Fig. 1 numerical control of machine tools applies to lathe schematic diagram,

Fig. 2 numerical control of machine tools ultrasonic automatic checkout system composition schematic diagram,

The composition schematic diagram of the ultrasonic automatic detection accessory of Fig. 3 numerical control of machine tools,

Fig. 4 lathe process schematic diagram,

Fig. 5 milling machine bulb milling schematic diagram,

Fig. 6 turnery processing partial enlarged drawing,

Fig. 7 turnery processing partial enlarged drawing,

Fig. 8 lathe motion schematic diagram,

Fig. 9 NC code identifying processing flow chart,

Figure 10 turnery processing linear motion schematic diagram

Figure 11 turnery processing circular motion schematic diagram,

Deceleration schematic diagram after given feed speed can be reached when Figure 12 moves,

Given feed speed can not be reached when Figure 13 moves slow down schematic diagram,

Figure 14 detects process flow diagram flow chart,

Figure 15 parallel-crank mechanism schematic diagram,

Figure 16 space imaginary point structural scheme of mechanism,

Figure 17 has degree of freedom conventional sweep structural scheme of mechanism,

Figure 18 parallel-crank mechanism lathe detection schematic diagram,

Figure 19 space imaginary point mechanism lathe across workpiece sensing schematic diagram,

Schematic diagram does not detects across workpiece lathe in Figure 20 space imaginary point mechanism,

Figure 21 tri-axle lathe schematic diagram,

Figure 22 tetra-axle lathe schematic diagram,

Figure 23 milling four-spindle automatic programming schematic diagram,

Figure 24 milling four-spindle automatic programming code detects schematic diagram for lathe,

The non-five-axis machine tool of Figure 25 uses Conventional mechanisms to carry out detecting schematic diagram,

Figure 26 five-axis machine tool uses adnexa to carry out detecting schematic diagram,

Figure 27 parallelogram method single-degree-of-freedom sweep mechanism schematic diagram,

Figure 28 parallelogram method two degrees of freedom sweep mechanism schematic diagram,

Figure 29 space imaginary point method Edge check two degrees of freedom sweep mechanism schematic diagram,

Figure 30 space imaginary point method Edge check single-degree-of-freedom sweep mechanism schematic diagram,

Figure 31 space imaginary point method across workpiece sensing single-degree-of-freedom sweep mechanism schematic diagram,

Figure 32 is conventional across workpiece single-degree-of-freedom sweep mechanism schematic diagram,

Figure 33 routine Edge check single-degree-of-freedom sweep mechanism schematic diagram,

Figure 34 water injector schematic diagram,

Figure 35 ultrasonic coupling module diagram,

The ultrasonic automatic detection accessory Function Decomposition figure of Figure 36 numerical control of machine tools,

Figure 37 decomposition module figure,

In figure: 1.1-sprinkler part I, 1.2-slider I, 1.3-sliding bar, 1.4-axle three, 1.5-bar two, 1.6-gear six, 1.7-gear five, 1.8-gear four, 1.9-axle two, 1.10-bar one, 1.11-gear three, 1.12-gear two, 1.13-gear one, 1.14-axle one, 1.15-common base, 1.16-pedestal, 1.17-motor I, 1.18-Installing machine tool handle I；

2.1-sprinkler part II, 2.2-contiguous block II, 2.3-support arm one, 2.4-rotating shaft II, 2.5-bearing (ball) cover II, 2.6-bearing one, 2.7-belt wheel one, 2.8-belt wheel two, 2.9-mounting seat, 2.10-motor one, 2.11-support arm two, 2.12-adds Strong muscle II, 2.13-belt wheel three, 2.14-motor two, 2.15-support arm three, 2.16-Installing machine tool handle II, 2.17-belt wheel four, 2.18-bearing two, 2.19-positioning seat, 2.20-slide II, 2.21-screw II, 2.22-slide end cap II, 2.23-supports base；

3.1-sprinkler part III, 3.2-contiguous block III, 3.3-pivotal support arm connecting rod, 3.4-pivotal support arm, 3.5-is empty Mandrel, 3.6-bearing III, 3.7-motor III, 3.8 bearing (ball) covers III, 3.9-adjustable support arm, 3.10-slide end cap one, 3.11- Holding screw, 3.12-slide III, 3.13-supports base III, and 3.14-supports seat III, 3.15-reinforcement III, 3.16-clamp screw Nail III, 3.17-slide III, 3.18-slide end cap two；

4.1-sprinkler part IV, 4.2-slide block IV, 4.3-screw IV, 4.4-cursor slide, 4.5-rotating shaft IV, 4.6-motor IV, 4.7-motor cabinet, 4.8-support arm IV 1,4.9-support arm IV 2,4.10-supports base IV, 4.11-bearing door IV；

1-lathe, 2-workpiece, 3-ultrasonic wave added exploring block, 4-computer, 5-numerical control parts, 6-ultrasound emission acceptance division Part, 7-ultrasonic coupling parts, 8-machine tool cutting liquid case, 9-cutting fluid motor, 10-knife rest, 11-chuck, 12-attachment mechanism, 13- Standard interface without degree of freedom, 14-Rhizoma Nelumbinis closes liquid interface, 15-probe sheath, and 16-pops one's head in outlet, 17-nozzle, 18-lower chamber, 19-chamber Body, 20-coupling unit locating interface.

Detailed description of the invention

In conjunction with accompanying drawing, the detailed description of the invention of the present invention is described further.

The ultrasonic automatic detection accessory of numerical control of machine tools of the present invention is for making lathe have ultrasonic automatic detection function A class carry the auxiliary equipment of digital control system.The present invention and lathe integrate the composition ultrasonic automatic detection system of numerical control of machine tools System (as shown in Figure 1, 2), it is achieved the workpiece online ultrasonic automatic detection in the course of processing.Utilize cutting of lathe within the system Cut liquid supply circuit as coupling liquid loop.Ultrasonic probe and match mechanism are arranged in the installation site of machine tool, as On spindle hole or knife rest, examined workpiece is arranged on chuck or workbench.During detection, carry digital control system and control the additional of probe The main scanning campaign that scanning motion coordinates lathe to be provided realizes the scanning to workpiece, controls ultrasonic transmitting reception and coupling simultaneously Close the switch of liquid, to realize workpiece online automatic detection in the course of processing.Testing result can pass through automatic alarm or figure Picture, figure show.

The ultrasonic automatic detection accessory of numerical control of machine tools of the present invention and the ultrasonic automatic checkout system with lathe composition thereof Be technically characterized by comprising the steps as follows:

(1) use and carry digital control system and coordinate the automatization realizing detection process with lathe.Except workpiece and probe and supporting Outside mechanism's handling have been manually done, detection running is automatically performed under program control.

(2) during realizing detecting with " time synchronized method ", the additional scanning of adnexa moves and the association of lathe main scanning campaign With work, to realize the Scanning Detction of workpiece more complicated to workpiece, particularly profile.

(3) numerical control program establishment is simple.If lathe is Digit Control Machine Tool, the same numerically controlled machining programme of programming of main scanning campaign The preparation method of sequence is identical, and the control program of attachment control system can automatically generate according to main scanning motion control program； If lathe is machine tool, main scanning campaign utilizes the self-acting feed function of lathe to realize, and attachment control system only controls Ultrasonic launch receive, the switch of coupling liquid and collaborative, as long as carrying out the most in the controls simply with main scanning campaign Parameter arrange (as arranged detection resolution etc.) just can realize detecting process automation.

(4) in the ultrasonic automatic checkout system of numerical control of machine tools, water jet coupled modes are used, using cutting fluid as coupling Liquid, simply transforms as coupling liquid loop the cutting fluid supply circuit of lathe.

(5) design philosophy being designed with product family of the ultrasonic automatic detection accessory of numerical control of machine tools, they can share logical With technology, generic features, assembly or subsystem, there is standardized internal interface, enable the parts of product to exchange completely, logical Cross product platform can quickly design and manufacture and can meet dissimilar, the kind of different model lathe needs, and can be Plug-and-play.In theory adnexa can with various lathes form ultrasonic testing system, but from the necessity of integrated ultrasound detection function, Overall merit in feasibility and economy, the lathe being suitable for integrated ultrasound detection function is mainly metal cutting class lathe, emphasis It is lathe and milling machine.And lathe and milling machine have polytype and model, also include turning center and machining center.Therefore this is attached Part has carried out modularity, Parametric designing mainly for the ultrasonic automatic detection accessory being suitable for lathe and milling machine.

(6) in lathe ultrasonic testing system, testing result can be shown by simple auto-alarm function, it is possible to To be shown by image, figure: i.e. detected inside workpiece defect such as crackle, pore, being mingled with can be with two dimensional gray Image (C-scan, B-scan etc.) shows, it is also possible to show with three-dimensional CAD model.

The ultrasonic automatic detection accessory of numerical control of machine tools is received parts, ultrasonic wave added exploring block, ultrasonic coupling by ultrasound emission The composition such as parts, numerical control parts (as shown in Figure 3).

(1) ultrasound emission receives the function of parts is to realize ultrasonic transmitting and reception, and carries out the data received Analog digital conversion.These parts include that ultrasonic probe and ultrasound emission receive device.

Ultrasonic probe i.e. so-called ultrasonic transducer, its function is to realize the conversion between electric energy and mechanical energy.Visit Head kind is the most, has normal probe, angle probe, surface wave probe, immersion probe, phased array probe etc..Ultrasound emission receives dress Putting major function is to encourage ultrasonic transmitting and reception, shows ultrasonic signal, stores, process etc..Common ultrasonic Penetrate reception device and have ultrasound emission receiving card, simulation flaw detection card+A/D card, desk-top simulation reflectoscope+A/D card and desk-top number Word reflectoscope etc..

(2) function of ultrasonic wave added exploring block be realize from the location and installation in machine tool installation site, surpass The location and installation of acoustical coupling parts and additional scanning motion.These parts include the location and installation interface mould of ultrasonic wave added exploring block Block, ultrasonic coupling positioning parts mounting interface and additional scanning motion module.

Ultrasonic wave added exploring block location and installation interface module can be with the cutter standard mounting interface phase of used lathe Join, to realize whole ultrasonic wave added exploring block location and installation on the Cutting tool installation manner position of lathe.Ultrasonic coupling parts are fixed Position mounting interface is a standardized mechanical interface, it is possible to achieve the location and installation of the ultrasonic coupling parts of different size.Additional The function of scanning motion module is to cooperate with the main motion of lathe and jointly realizes detection scanning.Ultrasound detection typically requires transonic Direction overlaps with detected surface of the work normal direction all the time or becomes a fixed angle, i.e. requires to carry out gesture stability of popping one's head in, non- The motion of five-axle number control machine tool can not fully meet this requirement, needs ultrasound detection adnexa to possess additional scanning motion module, Meet scanning motion function.

(3) function of ultrasonic coupling parts is to realize location and installation and the ultrasonic coupling of probe, installs module including probe And ultrasound couple device.Probe is installed module and is used for realizing the location and installation of different size probe；Ultrasonic coupling module is used for real Ultrasonic coupling between existing workpiece and probe.

(4) function of numerical control parts is to control ultrasonic transmitting reception, ultrasonic coupling, additional scanning motion and numerical control machine The main scanning campaign of bed is worked in coordination with mutually.

The ultrasonic automatic detection accessory of numerical control of machine tools is the class making different types of lathe have ultrasonic automatic detection function Carry the auxiliary equipment of digital control system.This adnexa and lathe integrate the composition ultrasonic automatic checkout system of numerical control of machine tools, real The existing workpiece online ultrasonic automatic detection in the course of processing.

Complete ultrasonic automatic detection scanning motion not only needs to control the position of probe, but also needs to control probe Attitude.At three dimensions, only 5 Shaft and NC Machining Test lathes (3 translation shaft, 2 rotary shafts) could realize this control task, 2 axles, 3 axles, 4 axle lathes all can not be fully achieved this requirement.In order to realize position and the gesture stability of probe, ultrasonic automatically at lathe In detecting system, detection scanning motion is by two parts motion synthesis: one is the scanning motion provided by lathe, referred to as main motion； Two is the scanning motion provided by adnexa, referred to as additional movement.The ultrasonic automatic detection accessory of numerical control of machine tools is according to providing additional fortune Dynamic number of degrees of freedom, can be divided into three types: without additional movement adnexa, have the adnexa of a rotary motion, have two rotations The adnexa of motion.

Machine tool is used without the adnexa of additional movement, detect scanning motion by the self-acting feed function of lathe or craft Control to realize, adnexa digital control system only control ultrasonic launch receive, the switch of coupling liquid and with the working in coordination with of main scanning campaign, Control function simple.It is only suitable for the detection of simple shape workpiece, as engine lathe can detect cylinder class, disc-like workpiece, general Logical milling machine can detect plane box parts.

To Digit Control Machine Tool, such as on numerically controlled lathe, the surface of revolution of detection of complex, in order to keep probe axis returning all the time Turn on the normal in face, in addition to axial (Z-direction) that provide except numerically controlled lathe and radially (X to) feed motion, in addition it is also necessary to one additional Rotary motion, realize with the adnexa having a rotary motion degree of freedom；On 3 Shaft and NC Machining Test milling machines, detection of complex During space curved surface workpiece, in order to keep probe axis all the time on the normal of space curved surface or with normal keep fixed angle, remove Outside the feed motion on X, Y, Z tri-directions that Digit Control Machine Tool provides, in addition it is also necessary to two additional rotary motions, with having two The adnexa of individual rotary motion degree of freedom realizes；On 4 Shaft and NC Machining Test milling machines, when the space curved surface workpiece of detection of complex, use The adnexa having a rotary motion degree of freedom realizes；On 5 Shaft and NC Machining Test milling machines, when the space curved surface workpiece of detection of complex, Realize with the adnexa without additional movement.Other Digit Control Machine Tool uses which type of detection accessory to be decided according to the actual requirements.

In sum, the ultrasonic automatic detection accessory of numerical control of machine tools goes for machine tool and is equally applicable to numerical control machine Bed.Machine tool, without digital control system, typically provides additional scanning motion also without adnexa, and adnexa carries digital control system and only controls Detection process, controls function simple.But for Digit Control Machine Tool, lathe has the control system of self, and adnexa also has the number of oneself Ore-controlling Role, the how collaborative work of two digital control systems, jointly complete scanning motion and detection process control is a key problem.

It addition, in the ultrasonic automatic detection accessory of numerical control of machine tools ultrasonic coupling problem to be solved and adapt to dissimilar not The use problem of same model lathe.

Therefore, automatic detection accessory ultrasonic for numerical control of machine tools, it is particularly suitable for the ultrasound detection adnexa of Digit Control Machine Tool, It has problems with to need to solve:

(1) in the case of not changing Digit Control Machine Tool digital control system, adnexa carries digital control system and controls additional movement from different The lathe collaborative work of kind, makes probe keep attitude and the position required when detection, and is controlled detection process, complete The detection of workpiece in pairs.

(2) for common processing with non-5 Shaft and NC Machining Test lathes, such as numerically controlled lathe, Milling Motion in Three-axes NC etc., the fortune of its lathe Motivation structure is it cannot be guaranteed that probe movement is to Gesture (probe and the surface of workpiece keeping detection during relatively complex part surface Distance keeps constant, keeps constant with surface of the work normal angle), a kind of additional movement mechanism need to be designed to ensure.

(3) coupled problem during ultrasound detection.

(4) for meeting the versatility problem of adnexa designed by dissimilar different model lathe.

1. numerical control of machine tools ultrasonic automatic checkout system control method

One of the technical problem to be solved is to provide and a kind of utilizes lathe as the ultrasound detection of detection platform Control method, can meet in the case of not changing machine tool numerical control system, and adnexa carries digital control system and controls detection process and add Motion and different types of lathe collaborative work, to realize being scanned the workpiece that workpiece particularly profile is more complicated inspection Survey." time synchronized method " is proposed with satisfied control requirement for this this patent.

The definition of 1.1 time synchronized methods

" time synchronized method " refers to that time that " perform body B " basis " execution body A " move and trace information correspondence complete phase Answer a kind of working method of action, including programmed method, Time Calculation method and specific operation process.Ultrasonic for numerical control of machine tools Automatically detection accessory, adnexa is as " performing body B ", and lathe is as " performing body A ".By the knowledge to " machine tooling NC code " Not, extract " NC code is used in lathe detection ", calculate the probe movement time to each test point, and obtain corresponding trajectory parameters, Generate " adnexa NC code ".When lathe performs the motion that " lathe detection NC code " controls, adnexa performs " adnexa NC Code " control probe rotation, the triggering of crack detector and the switch of coupling liquid, thus ensure they collaborative works.

1.2 control routines and programmed method

1.2.1 control routine

In the numerical control ultrasonic testing system of Digit Control Machine Tool and ultrasound detection adnexa composition, there are three kinds of control routines: " lathe Processing NC code ", " lathe detection use NC code " and " adnexa NC code ".

" machine tooling NC code " as one common " process tool ", is compiled ultrasonic probe with universal numerical control processing The Machine Tool Control of Cheng Fangfa establishment, such as the NC code that programmed method or automatic programming method are worked out by hand.

For controlling the program code of Digit Control Machine Tool when " lathe detection NC code " is detection, it may be with " lathe adds Work NC code " identical, it is also possible to extract from " machine tooling NC code ".

For controlling the numerical control program of adnexa when " adnexa NC code " is detection, code contains according to " lathe adds Work NC code " machine tool motion that calculates to the temporal information of surface of the work each position and trace information, synchronize work as adnexa The reference foundation made.This code is generated by calculating based on " machine tooling NC code ", is that adnexa digital control system can With the code identified.

1.2.2 programmed method

" machine tooling NC code " can use " conventional programming method " and " certain programmed method " to work out.

(1) conventional programming method

So-called conventional programming method is exactly which type of Digit Control Machine Tool just uses corresponding programmed method to write numerical control program Method, just uses programming of NC-Lathe method to write numerical control program such as numerically controlled lathe, and 3 axles, 4 axles, 5 Shaft and NC Machining Test milling machines just use 3 Axle, 4 axles, 5 Shaft and NC Machining Test milling machine programmed methods write numerical control program." the machine tooling NC code " write with conventional programming method is straight Connect and be used as " lathe detection NC code ".Use in the program that " conventional programming method " is worked out, contains only the letter controlling lathe Breath, does not control the information of detection accessory additional movement, but can calculate generation " adnexa NC code " based on this code.

For common processing with non-5 Shaft and NC Machining Test lathes, such as numerically controlled lathe, 3 Shaft and NC Machining Test milling machines etc., use " conventional programming side Method " " the machine tooling NC code " worked out when being used as the program controlling lathe when detection, the track that probe is walked is workpiece wheel Wide equal space line, but can not realize gesture stability to probe is maybe fully achieved, i.e. can not realize probe axis and workpiece Surface normal angle keeps constant requirement.

Such as when numerical control turning controls the motion of programme-control lathe tool, point of a knife contacts with surface of the work, and main axis processes Workpiece shapes, if cutter extension elongation is L (Fig. 4, L=a1b1=a₂b₂=……=a_nb_n), owing to during time processing, tool length is not Become, therefore tool reference point B (Fig. 4, b1, b₂,……,b_n) also keep constant in X-direction from surface of the work distance, the appearance of cutter State keeps constant (in Fig. 4, lathe tool handle of a knife is parallel to X-axis all the time).And ultrasound detection needs the position both controlling probe to control again The attitude of probe, as received detection method for normal probe single-shot list, not only requires that center probe keeps not with surface of the work distance Become, and require that probe axis must be on the normal of surface of the work.Also there is similarity, such as Fig. 5 for 3 Shaft and NC Machining Test milling machines The reference point (centre of sphere) of shown rose cutter keeps constant to surface of the work distance, and the attitude of cutter also keeps constant (in Fig. 5 Handle of a knife axis is parallel to Z axis), but the angle of the normal of cutter (handle of a knife axis) and surface of the work is change.

As it has been described above, use " machine tooling NC code " conduct " lathe detection NC generation that " conventional programming method " is worked out Code " time, pop one's head in realize detection, need to design one can rotating mechanism with test point on surface of the work as center of rotation, As a example by test point a7 in Fig. 6, rotating mechanism can be with a7 point for center of rotation rotational angle θ, and the radius of gyration is R, detect away from From for X (such as Fig. 7).

(2) certain programmed method

So-called certain programmed method is the needs according to detection, and direct organization goes out not only to comprise the information of control lathe and also wraps The method having contained the control program of additional motion information, the most therefrom extracts " lathe detection NC code ", and calculating extracts " adnexa NC code ".As 2DOF (X-axis, Z axis) numerically controlled lathe uses the polish of 4 axle milling machines (X-axis, Y-axis, Z axis, B axle) Programming method works out its detection control program, i.e. using the revolving body contour curve of numerically controlled lathe detection as 4 Shaft and NC Machining Test The plane curve of milling machine processing is programmed, and at this moment Y=0, only tri-coordinates of X, Z, B are to control coordinate, wrap in this program Contained the B axle rotation information of gesture stability, track that at this moment cutter is walked out and the attitude of cutter as shown in Figure 8, a1b1, a₂b₂、……、a_nb_nRepresenting the position at lathe tool handle of a knife place, they are on surface of the work normal.In like manner, 3 axles, 4 Shaft and NC Machining Test millings The detection program of bed uses 5 axle programmed method establishments, also contains the information of two rotary shafts of gesture stability in control program.

1.3 " detections use NC code " and the extraction of " adnexa NC code " and generation

Such as front analysis, " detection NC code " and " adnexa NC code " is extraction from " machine tooling NC code ", meter Calculate generation.No matter " machine tooling NC code " employing " conventional programming method " or " certain programmed method " are worked out, carry The handling process taking, calculating generation " detection NC code " and " adnexa NC code " is identical:

A. analyze every line code, extract lathe from setting in motion to the time of surface of the work each point and the normal side of each point To etc. information, according to this information generate detection time adnexa needed for " adnexa NC code ".

B. when carrying out a every line code of analysis as, time when rotating speed, feed speed etc. are for detection less properly, it carried out Suitably modified and be saved in " lathe detection NC code ".

The following is NC code identifying processing flow process (Fig. 9):

The Time Calculation method of 1.4 time synchronized methods

According to " time synchronized method " principle, probe movement need to be calculated to each test point by " machine tooling NC code " Time.Ultrasound detection adnexa needs and lathe collaborative work, controls probe to each test point of surface of the work in lathe main motion Time additional mechanism providing additional operation need synchronous axial system to arrive its normal direction, therefore we need to calculate lathe to move to surface of the work from starting point each Time used by test point.

The shape profile of part is made up of various line styles (such as straight line, circular arc, helix, parabola, free curve etc.), but In reality is processed, usually approach the contour curve of (matching) part with segment straight line or circular arc, equally during detection Also approach the contour curve of examined workpiece with straight line or circular arc, i.e. the track described by " machine tooling NC code " is all straight line Or circular arc.Therefore, we can ask for temporal information t and the surface of the work normal direction letter of each test point by " machine tooling NC code " Breath, computational methods are as follows:

If the speed of mainshaft is W(r/min) feed speed is F

(1) for straightway ab(such as Figure 10)

Coordinate a (x1, z1), b (x2, z2) are for any point c (x3, z3) on straight line ab, and its method phasor n is identical,

(0≤α≤180)；

From a point to the c point time (time at the uniform velocity) used

。

(2) for circular arc (such as Figure 11)

CircleRadius is r, for c (x3, z3) isUpper any point, the center of circle is d (x0, z0)

Straight line ab length

,

Due to Δ adc tri-point coordinates it is known that ∠ adc can be tried to achieve, and then try to achieve ac arc length s=r ∠ adc,

And then try to achieve by time (time at the uniform velocity) t=s/F of a to c.

(3) for using linear acceleration and deceleration mode

When considering acceleration and deceleration, if acceleration is gone total distance by a from t0 to t3.When machine tool motion, it is along giving NC The tangential motion of code path, acceleration magnitude and velocity magnitude are also calculated by track tangential direction.Therefore for the " time Synchronos method ", we are without sports-minded displacement, but are concerned about its distance, and the imagination does variable motion on this straight line, and it becomes Can be divided into two kinds of situations during speed, one is can to reach speed V2 from speed V1 speed change to keep after a period of time speed change again to join to V3( See Figure 12), another kind is to start again before speed V1 speed change not up to speed V2 to V3 speed change (seeing Figure 13).Below first to add After speed slow down as a example by carry out publicity derivation (as Figure 12,13), for release formula will have generality.

For any time t (t0≤t≤t3), have

Exponential acceleration and deceleration, S type acceleration and deceleration are used as similar approach and are calculated.

The specific operation process of 1.5 time synchronized methods

After detection accessory is quickly installed on lathe constitute lathe ultrasonic testing system, use " conventional programming side Method " or " certain programmed method " develop " machine tooling NC code ", with special recognition processing software, to " machine tooling NC code " it is identified processing, calculate point of a knife and move to time and this surface of the work normal direction letter of each test point of surface of the work Breath, extracts and generates " NC code is used in detection " and " adnexa NC code "." detection NC code " is passed to machine tool numerical control system, and Calculate " adnexa NC code " the incoming adnexa generated and carry digital control system.(set up workpiece to sit when lathe completes test initialization Mark system, and return to detect reference point), owing to being provided with synchronization sensor in lathe detection reference point, when machine tool motion, sensing Device detects signal, triggers adnexa digital control system and enters detection pattern, according to " adnexa NC code ", when machine tool motion is to workpiece During each test point in surface, control probe and keep corresponding test pose and control ultrasonic transmitting reception, right to realize probe The ultrasonic scanning detection of workpiece.

Specific operation process (Figure 14):

A. computer compilation " machine tooling NC code "

B. it is identified " machine tooling NC code " processing, extracts and generate " NC code is used in lathe detection ", calculate and generate " adnexa NC code ".

C. " lathe detection NC code " is passed to machine tool numerical control system.

D. " adnexa NC code " is passed to the digital control system of adnexa.

E. workpiece coordinate system set up by lathe, returns detection reference point.

F. the detection pattern of adnexa digital control system is opened.

G. lathe performs " NC code is used in lathe detection " setting in motion.

H. the synchronization sensor of adnexa detects signal, performs " adnexa NC code ", and adnexa starts to adjust probe attitude And detect.

I. detect complete, computer disposal detection data, draw testing result.

2. additional scanning mechanism

Using non-five-axis machine tool for common processing, himself is it cannot be guaranteed that probe movement keeps to during relatively complex part surface The requirement of test pose, need to design a kind of device and reach this requirement.

2.1 dissimilar additional scanning mechanism and application thereof

" machine tooling NC code " can use " conventional programming method " and " certain programmed method " to work out, and programmed method is different Requirement to additional scanning mechanism is the most different.

Use in " the lathe detection NC code " that " conventional programming method " is worked out, contains only the information controlling lathe, Do not control the information of detection accessory additional movement.In order to realize additional movement, need a kind of mechanism so that it is can auxiliary machine bed motion Make probe keep accurate posture during to surface of the work point, i.e. pop one's head in around surface of the work point (such as detection incidence point, see Fig. 6) Rotate, and can keep constant relative to this some distance in rotation process, we term it there is degree of freedom fixed length to scan, meet this The sweep mechanism that kind requires, there being degree of freedom fixed length to scan, is characterized in that the movement locus of probe is for this reference point Circle.Parallel-crank mechanism and space imaginary point mechanism can be used to realize this requirement.As long as the control of this mechanism calculates Going out angle and the temporal information of correspondence that each test point needs to rotate, " adnexa NC code " generates simple.

Parallel-crank mechanism principle (such as Figure 15):

So-called parallel-crank mechanism refers to the parallelogram OABC being made up of real limit AB, BC and void limit CO, OA, slides Bar (1.3) is on OC extended line, and common base is on OA extended line.When bar one (1.10) occurs relative with common base (1.15) During rotation, from parallelogram-property, sliding bar (1.3) is sliding bar (1.3) and bar one while imaginary point center of circle O rotates (1.10) the energy moment is parallel and sliding bar (1.3) moment points to center of circle O.Each test point of surface of the work when center of circle O is detection.

Space imaginary point mechanism principle (such as Figure 16): so-called space imaginary point mechanism, refers in engineering design, owing to needing design Mechanism is made to rotate around center of circle O, but owing to there is other entities in the range of the O certain radius of the center of circle, due to location conflicts relation, Can only blur in the center of circle, make mechanism rotate around imaginary point center of circle O.Such as Figure 16, turning arm (B) when support arm (A) rotates, turning arm (B) bottom rotates around imaginary point center of circle O.Each test point of surface of the work when center of circle O is detection.

According in " lathe detection NC code " that " certain programmed method " is worked out, not only comprise and control the information of lathe also Contain the information controlling additional movement, can therefrom extract " lathe detection NC code ", calculate and extract " adnexa NC generation Code ".Because having calculated that the position of probe and the parameter of gesture stability in compilation process, therefore we only need to design simple Single-degree-of-freedom or Two-Degree-of-Freedom mechanism.Our this kind of mechanism is called to have degree of freedom conventional sweep mechanism (signal is such as Figure 17).

2.1.1 there is the utilization on dissimilar lathe of the degree of freedom fixed length sweep mechanism

During for lathe process, owing to lathe tool reference point keeps constant (such as figure in workpiece radial direction (i.e. X-direction) distance 4 dotted lines are the tool reference locus of points, therefore a1b1=a2b2=a3b3=...=a_nb_n), during detection, cutter (probe) is along surface of the work essence Machining locus moves, and probe axis takes measuring point normal tested with surface of the work at quarter and overlaps and apart from keeping constant, due to a1b1= a2b2=a3b3=...a_nb_n, therefore only need to be by probe around an a_nThe θ that turns an angle make its vertical with surface of the work can (as A7b7), owing to adding feed speed in man-hour it is known that machining locus it is known that when therefore can calculate detection Lathe tool tip move to The time of surface of the work every bit, still use external timer (intervalometer in adnexa automatic numerical control system), at lathe Timing when starting to detect, by probe movement knowable to the calculating time to what position, adnexa digital control system controls attachment mechanism, makes spy Head is vertical with surface of the work and distance keeps constant, thus realizes lathe workpiece detection process.Figure 18 is parallel-crank mechanism Lathe detection schematic diagram, Figure 19 be space imaginary point mechanism lathe across workpiece sensing schematic diagram, Figure 20 be space imaginary point mechanism not across Workpiece lathe detection schematic diagram.

And for three, four-shaft numerically controlled milling machine, utilize automated programming to develop control program, by automatic programming software Secondary development extract surface of the work each test point method phasor and calculate the time of respective point, real by time synchronized method Now to three, the control of four-axis milling machine workpiece sensing process (as Figure 21,22), three axle lathes carry XYZ translation shaft, and adnexa realizes BC Axle, and B axle rotate time away from workpiece apart from constant；Four axle lathes carry XYZ translation shaft and C rotary shaft, and adnexa realizes B axle, and B axle Away from workpiece apart from constant during rotation.

2.1.2 there is the utilization on different lathes of the degree of freedom conventional sweep mechanism

4 axle milling machine finishing procedures preparing methods are used to work out its detection according to " certain programmed method " such as numerically controlled lathe With controlling program, 3 axles, the detection program of 4 Shaft and NC Machining Test milling machines use 5 axle programmed method establishments etc..At this moment " machine tooling NC generation Code " control program not only comprises position control information (3 translation shaft) but also contain gesture stability information (1 or 2 rotary shaft), Disclosure satisfy that the requirement of probe positions and gesture stability.Additional scanning is moved to unite with main scanning campaign and is programmed obtaining Obtain " machine tooling NC code ", from this code, then extract " lathe detection NC code ", and extract each test point The corner required, calculates the time arriving each test point, ultimately generates " adnexa NC code ".This programmed method is additional The part that motion is uniformly controlled as lathe is programmed, as long as mechanism can realize 1 degree of freedom or the 2DOF required Rotating, referred to as there is degree of freedom conventional sweep mechanism in this mechanism.

During for lathe process, by four special axle programmed methods, will write generation NC code through process be allowed to into Adnexa detection is used, specific as follows:

As Figure 23 makees the contour curve identical with turner profile in XZ plane, programmed by four axles (XYZB) milling machine, Use curve to drive (cutter shaft is perpendicular to curve) during programming, generate NC code and the milling cutter axis moment will be made mutually overlapping with workpiece method Closing, and the distance B axle centre of gyration keep constant, if this generation NC code to be used for the turnery processing of Figure 24, examining discovery, In two figures, cutter (popping one's head in attachment mechanism) is identical with the relative motion law of workpiece, only need to be exchanged by X Yu Z in NC code, and Add the instruction of the S speed of mainshaft, remove and milling machine correlative code, be i.e. applicable to detection.

For three, four-axis milling machine, can be programmed by five axles, by the translation part that generates code, (four axle lathes also comprise one Individual rotary shaft) code extract give lathe, by residual rotation part plus temporal information generate " adnexa NC code " give attached Number of packages Ore-controlling Role, thus three, four axle lathes are become five shaft detection lathes, by time synchronized method, it is achieved detection process.

Such as Figure 25, non-five-axis machine tool uses Conventional mechanisms to detect, real by adnexa for three axle lathe (XYZ) additional BC Existing, four axle lathe (XYZC) additional B are realized by adnexa.

2.1.3 without the utilization on different lathes of the degree of freedom sweep mechanism

A. lathe automatic ultrasonic detection

For five-axle number control machine tool, the adnexa without additional movement functional module is arranged on the knife rest of lathe, borrows The detection scanning motion to probe positions and gesture stability can be realized completely with the displacement of lathe, only need to be by workpiece NC generation The incoming machine control unit of code, it is achieved the control (seeing Figure 26) to detection scanning motion.Numerical control parts is ultrasonic for controlling Launch and receive and the start and stop of coupling device.Then the data of reception are carried out analog digital conversion by A/D data collecting card, finally pass Pass computer to process, be finally reached the purpose of detection of complex shape workpiece.

B. the semi-automatic ultrasound detection of lathe

(1) examined workpiece is arranged on lathe, the adnexa without additional movement functional module is arranged on the knife rest of lathe On, by the scanning motion to workpiece of the self-acting feed functional realiey probe, report to the police determine spy by observing A sweep signal and gate Hindering result, numerical control parts only controls ultrasonic coupling module.

(2) examined workpiece is arranged on lathe, the adnexa without additional movement functional module is arranged on the knife rest of lathe, By the scanning motion to workpiece of the self-acting feed functional realiey probe, numerical control parts controls to launch reception parts and ultrasonic coupling module.

This method for semi-automatically detecting, is only suitable for the detection of the workpiece of simple shape, as engine lathe can detect cylinder Class, disc-like workpiece, plain-milling machine can detect plane box parts.

C. the manual ultrasound detection of lathe

Ultrasound detection manual for lathe, is arranged on examined workpiece on lathe, attached by without additional movement functional module Part is arranged on the knife rest of lathe, and Artificial Control realizes the pop one's head in scanning motion to workpiece and detection process, by observing A sweep Signal and gate are reported to the police and are determined result of detection.This manual inspection method, is also only suitable for the detection of the workpiece of simple shape, as Engine lathe can detect cylinder class, disc-like workpiece, and plain-milling machine can detect plane box parts.

The design of 2.2 dissimilar additional scanning mechanisms

2.2.1 degree of freedom fixed length sweep mechanism is had to design

2.2.1.1 parallelogram lindage

Parallelogram lindage core is made up of (such as Figure 28) 1～15:

Sprinkler part I 1.1 is installed on sliding bar 1.3 by slider I 1.2, makes slider I 1.2 can slide on sliding bar 1.3 Dynamic, when slider I 1.2 slides into correct position, use screw to be anchored on sliding bar 1.3, axle 3 1.4 and sliding bar 1.3 are connected, and axle 3 1.4 is installed on bar 2 1.5 by bearing so that it is can rotate relative to bar 2 1.5, and gear 6 1.6 is pacified Being loaded on axle 3 1.4, gear 5 1.7 is installed on bar 2 1.5 by axle, and gear 4 1.8 is connected with bar 1, axle 2 1.9 It is connected with bar 2 1.5, and axle 2 1.9 is installed on bar 1 by bearing so that it is can rotate relative to bar 1, gear 3 1.11 are connected with axle 2 1.9, and gear 2 1.12 is installed on bar 1 by axle, gear 1 and common base 1.15 Being connected, axle 1 is connected with bar 1, and axle 1 is installed on common base 1.15 by bearing so that it is can be relative to Common base 1.15 rotates.In installed above, gear 2 1.12 engages with gear 1 and gear 3 1.11 simultaneously, gear five 1.7 engage with gear 4 1.8 and gear 6 1.6 simultaneously, and when installing, bar 1 is parallel with sliding bar 1.3, so works as power Being inputted by axle 1, when making axle 1 rotate relative to common base 1.15, between bar 1 and bar 2 1.5, angle theta becomes Change but bar 1 and sliding bar 1.3 still moment keeping parallelism.

If four-bar mechanism being used for lathe use (such as Figure 27), only need by pedestal 1.16, (1～15) are installed on car Bed.

If four-bar mechanism is for milling machine (such as Figure 28), if also to increase by 1 degree of freedom, milling machine installing handle 1.18 need to be passed through Bearing is installed on pedestal 1.16, and milling machine installing handle 1.18 other end is installed on milling machine handle of a knife and (is not drawn in figure), passes through milling Bed handle of a knife is installed to whole mechanism in cutter for milling machines mounting seat.Motor 1.17 is also installed on pedestal 1.16, works as electric machine rotation Time whole mechanism can be made to relatively rotate around milling machine installing handle 1.18；As without increasing degree of freedom, directly by milling machine handle 1.18 Being connected with pedestal 1.16, the other end is installed at milling machine handle of a knife.

2.2.1.2 space imaginary point mechanism

Space imaginary point mechanism can be divided into again imaginary point Edge check mechanism and imaginary point across workpiece detection mechanism.

Imaginary point Edge check mechanism core is formed by 1 ~ 22:

Sprinkler part II 2.1 is installed on slide II 2.20 by contiguous block II 2.2, and slide II 2.20 location and installation is supporting On arm 1, slide II 2.20 can slide on support arm 1, and then is adjusted coupling distance.When slide is adjusted to Behind appropriate location, utilize II 2.21 slide tightenings of screw on support arm 1.Support arm 1 by key location and installation in In rotating shaft II 2.4, and by screw lock, rotating shaft II 2.4 is installed on support arm 2 2.11 by bearing 1, then uses spiral shell Nail locking, makes bearing 1 can rotate relative to support arm 2 2.11, and rotating shaft II 2.4 is connected with belt wheel 1 by key, belt wheel 2 2.8 are connected with motor 1 by key, motor 1 pass through screw location and installation in mounting seat 2.9, mounting seat 2.9 by screw location and installation on support arm 2 2.11, belt wheel 1 is connected with cog belt with belt wheel 2 2.8, and then makes Motor 1 drives sprinkler part II 2.1 to rotate, and bearing 1 is pressed on support arm 2 2.11 by bearing (ball) cover II 2.5 In hole, location, support arm 2 2.11 is installed with on support arm 3 2.15 by screw, is installed by screw by reinforcement II 2.12 On support arm 2 2.11 and support arm 3 2.15, motor 2 2.14 by bonded belt wheel 3 2.13 and location and installation in In brace 3 2.15, Installing machine tool handle II 2.16 by bearing 2 2.18 location and installation on support arm 3 2.15, and with positioning Seat 2.19 and bolt are fixed, and belt wheel 3 2.17 is by bonded on Installing machine tool handle II 2.16, by belt wheel 3 2.13 and belt wheel One 2.17 are connected with cog belt, and then make motor 2 2.14 drive whole device to rotate around Installing machine tool handle II 2.16, and lathe is pacified The centrage of hilt II 2.16 should intersect with the centrage of rotating shaft II 2.4, the design requirement of such guarantee fixed length mechanism.

If this adnexa detects on milling machine, Installing machine tool handle II 2.16 is installed on milling machine handle of a knife and (does not draws in figure Go out), by milling machine handle of a knife, whole mechanism is installed in cutter for milling machines mounting seat.

If this adnexa detects on lathe, then needing to be replaced module, now support arm 2 2.11 passes through spiral shell Nail is installed with on support arm 3 2.15, and support arm 3 2.15 is directly mounted on support base 2.23 by screw, will support the end Seat 2.23 location and installation on the knife rest platform of lathe (such as Figure 30), for imaginary point edge one-level degree of freedom sweep mechanism.

Imaginary point forms by 1 ~ 18 across workpiece detection mechanism core:

Sprinkler part III 3.1 is installed on pivotal support arm connecting rod 3.3 by contiguous block III 3.2, pivotal support arm connecting rod 3.3 are installed on pivotal support arm 3.4, and pivotal support arm 3.4 is positioned in the chute of slide III 3.17, and can be at slide III The chute of 3.17 slide end cap 2 3.18 compositions slides, and then coupling distance is adjusted, utilize holding screw III 3.16 Being fixed pivotal support arm, slide III 3.17 is connected with hollow axle 3.5 by screw, and hollow axle 3.5 is by bearing III 3.6 Being installed in adjustable support arm 3.9, make hollow axle can rotate relative to adjustable support arm, hollow axle 3.5 is by key and motor III 3.7 are connected, and then make driven by motor sprinkler part III 3.1 rotate, and bearing III 3.6 is pressed on adjustable by bearing (ball) cover III 3.8 Support arm 3.9 positions in hole, and adjustable support arm 3.9 is positioned in the chute of slide III 3.12, and can be in slide III 3.12 and cunning The chute of seat end cap 1 composition slides, and then detection diameter of work size is adjusted, utilize holding screw to can Adjusting support arm 3.9 to be fixed, slide III 3.12 is installed on support seat III 3.14 by screw, supports seat III 3.14 and passes through spiral shell Nail is installed on support base III 3.13, is arranged on support seat III 3.14 by screw by reinforcement III 3.15, will support the end Seat III 3.13 location and installation on the knife rest platform of lathe (such as Figure 31).

2.2.2 there is the design of degree of freedom conventional sweep mechanism

2.2.2.1 routine is across workpiece single-degree-of-freedom sweep mechanism

For routine across the design of workpiece single-degree-of-freedom sweep mechanism, only need to by space imaginary point method across workpiece sensing one freely The anti-dress of sprinkler part in degree sweep mechanism gets final product (such as Figure 32).

2.2.2.2 conventional single-degree-of-freedom Edge check sweep mechanism

Sprinkler part IV 4.1 is installed on cursor slide 4.4 by slide block IV 4.2, can slide on cursor slide 4.4, and then to coupling Conjunction distance is adjusted, and is locked by screw IV 4.3, and cursor slide 4.4 location and installation is in rotating shaft IV 4.5, and axle is passed through in rotating shaft IV 4.5 Hold location and installation on support arm IV 1 4.8, compress with bearing door IV 4.11, make the bearing IV 4.5 can be relative to support arm IV One 4.8 rotate, and motor IV 4.6 location and installation is on motor cabinet 4.7, and is connected with rotating shaft IV 4.5, and then makes motor IV 4.6 carry Dynamic sprinkler part IV 4.1 rotates, motor cabinet 4.7 by screw location and installation on support arm IV 1 4.8, support arm IV 1 4.8 Being connected with support arm IV 2 4.9 by screw, support arm IV 2 4.9 is installed in support base IV 4.10 by screw, will prop up Support base IV 4.10 location and installation on the knife rest platform of lathe (such as Figure 33).

If this adnexa detects on lathe, then install by above-mentioned.If this adnexa is examined on milling machine Survey, then need to be replaced module, increase the rotary module of one degree of freedom.

3. ultrasonic coupling module design

Ultrasonic coupling parts, to solve coupled problem during ultrasound detection.

The selection of 3.1 water seaonings

Water seaoning can be divided into hydrostatic coupling and move water coincidence (hydrostatic coupling refer to the actionless coupled modes of coupling liquid, And move water coincidence and refer to the coupled modes that coupling liquid flows) two ways.Owing to hydrostatic coupled modes need whole workpiece to soak Not in water, it needs a tank that can accommodate measured workpiece.Lathe ultrasonic testing system is wanted simultaneously after once mounting Complete ultrasound detection and machining functions, according to hydrostatic coupled modes, it is desirable to during detection, workpiece is submerged in water, and process Time the most submerged in water, structure is difficult to, two kinds of functions are difficult to compatibility, therefore should not use hydrostatic coupled modes.And Dynamic water coincidence mode has only to water circulation system, and system bulk is less, can more conveniently adapt to different lathe ultrasound detection System.Therefore, lathe ultrasonic testing system uses dynamic water coincidence mode.

3.2 the selection of coupling liquid

In lathe ultrasonic testing system, typically want cutting fluid to realize cooling down during processing workpiece, lubricate, clean, antirust four Plant function, then whether cutting fluid can realize the function of ultrasonic coupling, and answer is yes.The most common cutting fluid has three classes:

(1) aqueous solution is main addition antirust agent or surfactant and oiliness additive with water.

(2) emulsion is by the water dilution of mineral oil, emulsifying agent and the oil emulsion of other additive preparation and 95%-98% The milky cutting fluid become.

(3) cutting oil main component is mineral oil, and minority uses vegetable oil or compound oil.

The main component of this three classes cutting fluid is water and mineral oil, and conventional couplant is also water and mineral oil, therefore cuts Cutting liquid can be as ultrasonic coupling liquid.But water-base cutting fluid and its acoustic impedance meeting compared with water and straight mineral oil of oil base cutting fluid Having certain change, this can be measured by simple test.

3.3 sprinkler part designs

By the way of using dynamic water coincidence, coupling liquid is entered from coupling liquid interface 14 conveying, make coupling liquid be full of spray Wet part chamber body 19, processes the fluidised form of coupling liquid through through-flow sieve, finally flows (spray) from nozzle 17 and goes out, reaches and work The purpose of part coupling.If Figure 34 is the apparatus structure of sprinkler part.

3.4 ultrasonic coupling loop designs

Dynamic water immersion method is used to realize detection in the ultrasonic automatic detection accessory of numerical control of machine tools.Owing to lathe self is with cutting Cutting fluid circulation (such as Figure 35), cutting fluid is directly extracted by lathe pump and is sprayed on workpiece cutting through hose director, through lathe Cutting fluid recycling device reclaims, and passes back in cutting fluid case, have vertical baffle in cutting fluid case after filter coarse filtration, cutting In liquid, powder impurity etc. progressively deposit through baffle plate, and the most cleaner cutting fluid is extracted again by pump, and so forth.This Coupling liquid blood circulation in invention is to carry out certain transformation on the basis of cutting liquid circulating system to form.Specific design As follows:

Before nozzle, pipeline is divided into two-way, couples when branch one is used for detecting, it is installed successively by choke valve 1, mistake The coupling purifier of filter, air relief valve, effusion meter composition, then connect water spray coupling device.So flow through this branch road when cutting fluid Time, filter out impurity through filter, then make bypass flow stable by air relief valve, finally have effusion meter to indicate flow big Little.Branch two cools down for work pieces process, and it installs choke valve 2, nozzle successively.

Adding man-hour, choke valve 1 cuts out, and choke valve 2 fully opens, and makes cutting fluid according to repacking front loop circulation.During detection, Choke valve 1, choke valve 2 are opened simultaneously, make a cutting fluid part by branch road two, and another part passes through branch road one, regulation throttling The aperture of valve 1 and 2, by observing meter readings, flows through detection branch flow and reaches traffic requirement during detection.Different machines Bed, its chip pump discharge is the most different, but has much regardless of the flow of lathe pump, by regulation choke valve 2, it is ensured that flow through detection Bypass flow is in claimed range, and the most this design can meet the requirement of different lathe.It addition, for different lathe branch roads one Can immobilize, only need to change branch road two choke valve 2.

This design can realize transformation to different lathes, and new machine also can design addition detection coupling function according to this.

4. the cross-species transferability of adnexa

The four of the technical problem to be solved are the versatility problems solving attachment design, dissimilar to meet The use of different model lathe.By using the thought of production family design, this is proposed the ultrasonic automatic detection of numerical control of machine tools attached The modularity of part, Parametric designing.

It is exactly by the unit of function same on this adnexa that automatic detection accessory ultrasonic to numerical control of machine tools carries out modularized design, It is designed to module that several have different performance, that selection can be exchanged, according to the needs of user, selects and be combined into difference Function or function is identical but product that performance, specification are different.If Figure 36 is attachment function exploded view:

Use on the lathe of dissimilar, different model for meeting this adnexa, can enter by horizontal serial and vertical series module Row design, do not change detection parameter identical with basic part under conditions of, use disparate modules be combined into each modified product.Set altogether Having counted typical 6 module groups, included 30 modules, such as Figure 37, wherein detection accessory location and installation interface (J) is along with lathe Type different and change, design the interface module of five kinds of conventional lathes at this, if adnexa applies to other lathe and also may be used Design the detection accessory location and installation interface matched.Probe is installed module (T) and is only devised four kinds of models, if desired other The probe of model also can design corresponding module.

Component names and the module code name of the most horizontal series module group are as follows:

Component names and the module code name of vertical series module group are as follows: due to the direct diameter with probe of the size of probe sheath Size is relevant, along with the size of the change probe sheath of probe diameter also changes, the following is part of module:

,

Basic module: power plant module (D), coupling part location and installation interface (O), ultrasonic coupling module (H).

By being analyzed the operation principle of variety classes lathe, automatic detection accessory ultrasonic to numerical control of machine tools carries out mould Massing designs, and final design goes out to be applicable to the block combiner of variety classes lathe, as shown in table 1:

Table 1

In table: "○" represents that composition is applicable to the adnexa of this lathe in same module group for optional module, " ◎ " expression Composition is applicable to the essential module of adnexa of this lathe.

Claims

1. the ultrasonic automatic detection accessory of numerical control of machine tools, it is characterised in that its utilize lathe as detection platform, including ultrasonic Launch and receive parts, ultrasonic wave added exploring block, ultrasonic coupling parts and numerical control parts；

Described ultrasonic wave added exploring block includes the detection accessory that the cutter standard mounting interface with institute use lathe matches Location and installation interface module, ultrasonic coupling positioning parts mounting interface and additional scanning motion module；

Additional scanning motion module includes power plant module and without degree of freedom sweep mechanism and/or there is degree of freedom sweep mechanism；Nothing Degree of freedom sweep mechanism includes being installed on ultrasonic probe the connector on lathe handle of a knife, and having degree of freedom sweep mechanism is that fixed length is swept Retouch mechanism and/or have degree of freedom conventional sweep mechanism；Fixed length sweep mechanism can be visited to during surface of the work point by auxiliary machine bed motion Head in rotation process relative to this some distance keep constant, fixed length sweep mechanism include parallelogram sweep mechanism and/or Space imaginary point sweep mechanism；Parallelogram sweep mechanism and space imaginary point sweep mechanism include one-level degree of freedom and/or two grades Degree of freedom sweep mechanism；Parallelogram sweep mechanism includes the most hinged common base, bar one, bar two and sliding bar, The extension of the extension of common base, bar one, bar two and sliding bar forms parallelogram, the extension of common base and The intersection point of the extension of sliding bar overlaps with test point, and ultrasonic probe is installed on sliding bar, and common base is with lathe handle of a knife even Connect；

Space imaginary point sweep mechanism includes support arm and rotating turning arm, and turning arm is installed ultrasonic probe, ultrasonic probe Moving along the movement locus with test point fixed length distance, support arm is connected with lathe handle of a knife, and space imaginary point sweep mechanism is imaginary point Circle scan mechanism and/or imaginary point are across workpiece sweep mechanism；

There is degree of freedom conventional sweep mechanism for conventional across workpiece single-degree-of-freedom sweep mechanism and/or conventional single-degree-of-freedom circle scan Mechanism；

Described ultrasonic coupling parts, including for realize different size probe location and installation probe install module and for Realize the ultrasound couple device of ultrasonic coupling between workpiece and probe, use cutting fluid as coupling liquid, utilize lathe to carry Cutting fluid blood circulation realizes the circulation of coupling liquid, and ultrasound couple device includes two branch roads being connected with machine cut liquid pump, inspection Survey branch road and processing branch road, detection branch pipeline is sequentially installed with choke valve, filter, air relief valve and effusion meter and constitutes coupling Closing liquid purifier, coupling liquid purifier connects sprinkler part, processing bypass line installs choke valve and nozzle successively, spray Wet part includes nozzle and chamber body, arranges sprinkler part locating interface, sprinkler part locating interface is opened bottom the body of chamber There is chute that ultrasonic probe is installed；

Described numerical control parts is to control ultrasonic launch reception, ultrasonic coupling, additional scanning motion the master with Digit Control Machine Tool to sweep Retouch motion to work in coordination with mutually.

The ultrasonic automatic detection accessory of numerical control of machine tools the most according to claim 1, it is characterised in that described parallelogram One-level degree of freedom sweep mechanism includes that sprinkler part I (1.1), sprinkler part I (1.1) are installed on sliding bar by slider I (1.2) (1.3) above and being fastened by screw, axle three (1.4) is connected with sliding bar (1.3), and axle three (1.4) is rotatably pacified by bearing Being loaded on bar two (1.5), gear six (1.6) is installed on axle three (1.4), and gear five (7) is installed on bar two (1.5) by axle On, gear four (1.8) is connected with bar one (1.10), and axle two (9) is connected with bar two (1.5), and axle two (1.9) can be turned by bearing Moving and be installed on bar one (1.10), gear three (1.11) is connected with axle two (1.9), and gear two (1.12) is installed on bar one by axle (1.10) on, gear one (1.13) is connected with common base (1.15), and axle one (1.14) is connected with bar one (1.10), axle one (1.14) it is pivotally mounted on common base (1.15) by bearing；With gear one (1.13) and tooth while of gear two (1.12) Wheel three (1.11) engagement, gear five (1.7) engages with gear four (1.8) and gear six (1.6) simultaneously, bar one (1.10) and slip Bar (1.3) is parallel；Common base (1.15) is installed on pedestal (1.16), and pedestal is directly mounted at the knife rest platform of lathe.

The ultrasonic automatic detection accessory of numerical control of machine tools the most according to claim 2, it is characterised in that parallelogram two grades is certainly By degree sweep mechanism, what replacement pedestal was directly connected with lathe handle of a knife is to be provided with lathe by bearing on pedestal (1.16) to connect Handle, lathe connection handle (1.18) other end is installed on the knife rest platform of lathe, and band moving base is around lathe connection handle in relative rotation Motor (1.17) is also installed on pedestal (1.16).

The ultrasonic automatic detection accessory of numerical control of machine tools the most according to claim 1, it is characterised in that described space imaginary point is swept Retouching mechanism is imaginary point edge one-level degree of freedom sweep mechanism, and it includes that sprinkler part II (2.1), sprinkler part II (2.1) pass through Contiguous block II (2.2) is installed on slide II (2.20), and slide II (2.20) location and installation is upper at support arm one (2.3) and passes through Screw fastens, and slide II (2.20) can slide support arm one (2.3) is upper, support arm one (2.3) by key location and installation in Rotating shaft II (2.4) is upper and passes through screw lock, and rotating shaft II (2.4) is pivotally mounted to support arm two by bearing one (2.6) (2.11) on, rotating shaft II (2.4) is connected with belt wheel one (2.7) by key, and belt wheel two (2.8) is by key and motor one (2.10) phase Even, motor one (2.10) by screw location and installation in mounting seat (2.9), mounting seat (2.9) by screw location and installation in On support arm two (2.11), belt wheel one (2.7) is connected with cog belt with belt wheel two (2.8), and bearing one (2.6) passes through bearing (ball) cover II (2.5) is pressed in hole, support arm two (2.11) location, and support arm two (2.11) is installed and support arm three by screw (2.15) on, support arm three (2.15) is installed in support base (2.23), supports base (2.23) location and installation in lathe On knife rest platform.

The ultrasonic automatic detection accessory of numerical control of machine tools the most according to claim 4, it is characterised in that two grades of imaginary point edge freedom Degree sweep mechanism, replaces support arm three (2.15) to be installed in support base (2.24): support arm two (2.11) and support By screw, reinforcement (2.12), the upper location and installation motor two (2.14) of support arm three (2.15), electricity are installed on arm three (2.15) Machine two (2.14) is by bonded belt wheel three (2.13), and lathe connection handle II (2.16) passes through bearing (2.18) location and installation in propping up Brace three (2.15) is upper, its end, one end positioning seat (2.19) and bolt are fixed, and belt wheel four (2.17) passes through bonded at machine On bed connection handle II (2.16), belt wheel three (2.13) is connected with cog belt with belt wheel four (2.17), lathe connection handle II (2.16) The other end is installed on the knife rest platform of lathe, the centrage phase of the centrage of lathe connection handle II (2.16) and rotating shaft II (2.4) Hand over.

The ultrasonic automatic detection accessory of numerical control of machine tools the most according to claim 1, it is characterised in that described space imaginary point is swept Retouching mechanism is imaginary point across workpiece sweep mechanism, and including sprinkler part III (3.1), sprinkler part III (3.1) is by contiguous block III (3.2) being installed on pivotal support arm connecting rod (3.3), pivotal support arm connecting rod (3.3) is installed on outside pivotal support arm (3.4) End, pivotal support arm (3.4) is positioned in the chute of slide III (3.17), and can be at slide III (3.17) and slide end cap two (3.18) chute formed slides, utilizes holding screw III (3.16) that pivotal support arm is fixed, slide III (3.17) Being connected with hollow axle (3.5) by screw, hollow axle (3.5) is installed in adjustable support arm (3.9) by bearing III (3.6), Hollow axle (3.5) is connected with motor III (3.7) by key, and bearing III (3.6) is pressed on adjustable supporting by bearing (ball) cover III (3.8) In hole, brace III (3.9) location, adjustable support arm III (3.9) is positioned in the chute of slide III (3.12), and can be at slide III (3.12) and the chute that forms of slide end cap two (3.10) slides, utilize holding screw that adjustable support arm III (3.9) is carried out Fixing, slide III (3.12) is installed on support seat III (3.14) by screw, supports seat III (3.14) and is installed on by screw Support on base III (3.13), reinforcement III (3.15) is arranged on support seat III (3.14) by screw, base will be supported III (3.13) location and installation is on the knife rest platform of lathe.

The ultrasonic automatic detection accessory of numerical control of machine tools the most according to claim 6, it is characterised in that described routine is across workpiece one Degree of freedom sweep mechanism, pivotal support arm connecting rod (3.3) is installed on the outer end of pivotal support arm (3.4) and is replaced by pivotal support arm Connecting rod (3.3) is installed on the inner of pivotal support arm (3.4).

The ultrasonic automatic detection accessory of numerical control of machine tools the most according to claim 1, it is characterised in that described conventional single-degree-of-freedom Circle scan mechanism includes that sprinkler part IV (4.1), sprinkler part IV (4.1) are installed on cursor slide (4.4) by slide block IV (4.2) On, can be locked by screw IV (4.3) in the upper slip of cursor slide (4.4), cursor slide IV (4.4) location and installation is in rotating shaft IV (4.5) On, rotating shaft IV (4.5) by bearing location and installation, is compressed with bearing door IV (4.11), makes axle on support arm IV 1 (4.8) Hold IV (4.5) to rotate relative to support arm IV 1 (4.8), motor IV (4.6) location and installation on motor cabinet (4.7), and with Rotating shaft IV (4.5) is connected, motor cabinet (7) by screw location and installation on support arm IV 1 (4.8), support arm IV 1 (4.8) Being connected with support arm IV 2 (4.9) by screw, support arm IV 2 (4.9) is installed on support base IV (4.10) by screw On, support base IV (4.10) location and installation on the knife rest platform of lathe.

9. the time synchronized controlling party completed according to the ultrasonic automatic detection accessory of the numerical control of machine tools one of claim 1 to 8 Suo Shu Method, it is characterised in that in adnexa, gesture stability and the ultrasonic transmitting reception of probe are to be realized and machine by " time synchronized method " Working in coordination with of bed work, time synchronized method, first develop the NC code controlling lathe, then calculate probe movement according to code and arrive The time of each test point, when lathe starts to perform NC code motion, adnexa can be obtained by timing and pop one's head at a time Detection position, thus control probe and keep corresponding test pose and control the transmitting reception of ultrasound wave, to realize probe to work The ultrasonic scanning detection of part,

Specifically comprise the following steps that

A. utilize lathe universal numerical control programmed method to develop " machine tooling NC code ", then calculate according to machining code and generate " NC code is used in lathe detection " and " adnexa NC code "；

B. " lathe detection NC code " is passed to Digit Control Machine Tool；

C. " adnexa NC code " is passed to the numerical control parts of adnexa；

F. lathe performs " NC code is used in lathe detection " setting in motion；

H. detect complete, computer disposal detection data, draw testing result.