CN204694229U - Workpiece intelligent metering detecting unit - Google Patents

Abstract

The utility model discloses a kind of workpiece intelligent metering detecting unit and using method thereof, comprise coordinate control bracing or strutting arrangement (1), pick-up unit (2) and information processing electric control gear (3), pick-up unit comprises body (21) and detection head (23), body is provided with pattern-recognition sensor, position transducer and range sensor, body interior is provided with electrical control mechanism (22), electrical control mechanism comprises data processing module and data transmission blocks, detection head is provided with and detects medium emission device (231) and detect medium feed back receiver (232), information processing electric control gear comprises pick-up unit position control loop, pattern-recognition loop, analyzes planning detected parameters loop, Data Analysis Services loop etc.This workpiece intelligent metering detecting unit adopts numerical radius and generates the mode of batten data fitting function and calculate according to batten data fitting function and finally detect data, and intelligence degree is high, and accuracy of detection and efficiency higher.

Description

Workpiece intelligent metering detecting unit

Technical field

The utility model relates to a kind of gauge check unit, and specifically a kind of workpiece intelligent metering detecting unit being applicable to manufacturing industry processing factory, belongs to gauge check technical equipment field.

Background technology

By carrying out a series ofly repeatedly testing to the corresponding parameter of picture to metering, thus the process obtaining certain result becomes gauge check, be generally in mechanical manufacturing field and ensure that the quality of product and the data such as processing dimension, fitted position of the designing requirement of product to product component are tested according to technological requirement.

The crudy of parts comprises machining precision and surface quality, wherein the index of machining precision has dimensional accuracy, form accuracy and positional precision, the degree that the index of surface quality has surfaceness, surface working to harden, the character of unrelieved stress and size, the leading indicator of surface quality is surfaceness.

Gauge check of the prior art typically uses as the measurement instruments such as vernier caliper, internal-and external diameter milscale, dial gauge, clock gauge, length and angle gauge block amount instrument, inclinometer, roughmeter are tested to parts, common inspection is contact inspection, namely carries out contacting the concrete size that measures and be verified position whether in the dimensional tolerance range of technological requirement by measurement instrument and the detection position of parts to be tested.

There is following defect in this traditional contact gauge check:

1. measurement instrument can produce wearing and tearing when contacting detected parts, and the long-time accuracy of detection that uses can reduce, and therefore needs regularly to verify to ensure its accuracy of detection to measurement instrument;

2. detected parts, the need of parts particularly produced in batches detect surface to prevent corrosion from usually can carry out painting oil processing, measurement instrument when contacting detected parts easily by oil pollution, and be coated with the easy adhesive dust of oil processing, if dust enters measurement instrument, then the testing result of measurement instrument can be inaccurate, and measurement instrument is fragile simultaneously;

3. common contact gauge check is manual operation, namely reviewer or operating personnel hold measurement instrument and test, particularly for the parts sampling observation of batch production, checkability is lower, and the result that different reviewers or operating personnel use same measurement instrument to check is likely different, there is trickle artificial individual checkout discrepancy;

4. for there being casting flaw, the manufacturing defect such as welding deformation, and there are the complex structure parts of multi-step process, usually need in process to borrow size to supply a gap, reduce scrappage, by means of the parts completing one manufacturing procedure after size often still existing defects in other manufacturing procedures, the form accuracy of this baroque parts and the usual not easily direct Measurement accuracy of positional precision contact gauge check, precision normally by lathe ensures, if the precision of machining tool reduces, the machining precision of then processed parts just cannot ensure, usually artificial extra-deviation reason of finding has a delay, namely, in the very first time, contact gauge check not easily finds that machine tool accuracy reduces, and then cause batch parts off quality.

Summary of the invention

For above-mentioned prior art Problems existing, the utility model provides a kind of workpiece intelligent metering detecting unit and using method thereof, and intelligence degree is high, can realize non-contact detecting, and accuracy of detection and efficiency higher.

To achieve these goals, this workpiece intelligent metering detecting unit comprises coordinate control bracing or strutting arrangement, pick-up unit and information processing electric control gear;

Described coordinate control bracing or strutting arrangement comprises coordinate control mechanism;

Described pick-up unit comprises body and detection head; Body rear end is connected with coordinate control bracing or strutting arrangement, front end is connected with detection head rear end, body is provided with towards the pattern-recognition sensor in detection head direction, position transducer and range sensor, body interior is provided with electrical control mechanism, and electrical control mechanism comprises power module, data processing module and data transmission blocks; Detection head is provided with and detects medium emission device and detect medium feed back receiver, detects medium emission device and detect medium feed back receiver to be electrically connected with the data processing module of electrical control mechanism respectively;

Described information processing electric control gear comprises industrial control computer, electric power loop, pick-up unit position control loop, pattern-recognition loop, analyzes planning detected parameters loop, detection control loop, Data Analysis Services loop, printout loop etc., industrial control computer is electrically connected with pattern-recognition sensor, position transducer, range sensor and electrical control mechanism on body respectively, and industrial control computer is electrically connected with coordinate control bracing or strutting arrangement.

As further improvement of the utility model scheme, the Morse's taper structure coordinated with main shaft of numerical control machine tool is arranged in described body rear end.

As preferred version of the present utility model, the power module of described electrical control mechanism comprises rechargeable battery pack, pick-up unit is also provided with charging head, charging head is electrically connected with the power module rechargeable battery pack of electrical control mechanism, described coordinate control bracing or strutting arrangement is provided with the cradle coordinated with charging head, and cradle is electrically connected with the industrial control computer of information processing electric control gear.

As further improvement of the utility model scheme, described body front end is connected with detection head rear end by quick-connect machanism.

As further improvement of the utility model scheme, this workpiece intelligent metering detecting unit also comprises detection head locating rack, and the detection head order that need change is erected on detection head locating rack, and detection head locating rack location is arranged near coordinate control bracing or strutting arrangement; Described information processing electric control gear also comprises detection head and changes loop, and industrial control computer is electrically connected with quick-connect machanism.

As a kind of embodiment of the present utility model, described detection medium emission device and detection medium feed back receiver are light source emitter and light source feedback receiver.

As further improvement of the utility model scheme, the quantity of described detection medium emission device is set to more than one piece, more than one piece detects that medium emission device is rounded to be uniformly arranged on detection head front end face, and described detection medium feed back receiver is arranged in the circular scope of circular uniform detection medium emission device.

As further improvement of the utility model scheme, the described rounded uniform more than one piece be arranged on detection head front end face detects the light source that medium emission device launches different wave length, frequency respectively.

As further improvement of the utility model scheme, this workpiece intelligent metering detecting unit also comprises coordinate control position changing device, coordinate control position changing device is arranged near testing platform, coordinate control position changing device comprises workpiece grabbing mechanism and coordinate control switching mechanism, described information processing electric control gear also comprises location of workpiece transformation loop, and industrial control computer is electrically connected with coordinate control position changing device.

Compared with prior art, this workpiece intelligent metering detecting unit is launched as ultrasound wave or light source by the detection medium emission device on detection head, infrared rays etc. detect medium, receive orientation by the detection medium feed back receiver on detection head and beat the detection medium returned at measured workpiece detection faces back reflection, and be converted to electric signal, receive feedack by the data processing module of electrical control mechanism generate ground floor data and by data transmission blocks, layer data be sent to industrial control computer storage, then again detect after approaching certain distance and layer data is sent to industrial control computer storage, by that analogy, many groups layer data is sent to industrial control computer and stores, all layer data are analyzed by data continuity by industrial control computer, specificity analysis and numerical radius generate batten data and store, and become spline approxmation function according to batten data fitting, then calculate final detection data according to spline approxmation function and store, complete the measured surface of workpiece or the detection in hole, it is a kind of non-contact detection, avoid measurement instrument directly to contact with measured workpiece the measurement instrument produced and wear and tear, measurement instrument is fragile, there is the defects such as artificial individual checkout discrepancy in metric results, owing to being controlled the action of coordinate control bracing or strutting arrangement by industrial control computer, coordinate control bracing or strutting arrangement can be the mechanical arm by coordinate control, also can be the equipment such as main shaft of numerical control machine tool by coordinate control, therefore pick-up unit is arranged on coordinate control bracing or strutting arrangement and can realizes automation mechanized operation, decrease artificial participation, detection efficiency is higher, because industrial control computer carries out d solid modeling by the information of pattern-recognition sensor feedback, generate batten entity function and store, and selected reference face or reference point nearby, then base coordinate system and some subcoordinate systems is re-established according to selected reference field or reference point, then adopt numerical radius and generation batten data and become the mode of spline approxmation function according to batten data fitting, and finally detect data according to the calculating of spline approxmation function, the optimum basis coordinate system generated after the coordinate system that simultaneously re-establishes corrects and some subcoordinate systems can reducing mechanism cumulative errorss to greatest extent, therefore accuracy of detection is higher, the on-line checkingi that accuracy rate is higher can be realized, the parts for the turbine in turbocharger of motor and impeller, curve-tooth bevel gear etc. with curved-surface structure can realize higher detection efficiency and accuracy rate, for having the manufacturing defect such as casting flaw, welding deformation and there are the complex structure parts of multi-step process, first detect before blank processing, dimensional discrepancy data or the figure of overall tested complex parts and master pattern can be generated, can processing be instructed by these dimensional discrepancy data or figure, part rejection rate can be reduced to greatest extent, the spline approxmation function that can become according to batten data fitting after the checkout procedure for the batch workpiece of same lathe, same manufacturing procedure, same process tool processing knows this process tool wear extent cycle, takes to control tolerance range drift measure according to this data-guiding, for same lathe, same manufacturing procedure, all adopt the process tool of identical wear extent to process batch workpiece checkout procedure after the spline approxmation function that can become according to batten data fitting know the machine tool accuracy period of change of this lathe, thus can when processing error situation occurs the very first time know whether be machine tool accuracy change cause overproof, take to control tolerance range drift measure according to this data-guiding, be specially adapted to number bus factory.

Accompanying drawing explanation

Fig. 1 is pick-up unit three-dimensional structure schematic diagram of the present utility model when installing on the robotic arm;

Fig. 2 is the close-up schematic view of the utility model pick-up unit when installing on the robotic arm;

Fig. 3 is the utility model pick-up unit close-up schematic view when being arranged on machine tool chief axis;

Fig. 4 is the sectional structure schematic diagram of the utility model pick-up unit.

In figure: 1, coordinate control bracing or strutting arrangement, 2, pick-up unit, 21, body, 211, quick-connect machanism, 22, electrical control mechanism, 23, detection head, 231, detect medium emission device, 232, detect medium feed back receiver, 3, information processing electric control gear, 4, workpiece, 5, detection head locating rack.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described further.

As shown in Figure 1, this workpiece intelligent metering detecting unit comprises coordinate control bracing or strutting arrangement 1, pick-up unit 2 and information processing electric control gear 3.

Described coordinate control bracing or strutting arrangement 1 comprises coordinate control mechanism, and as shown in Figure 2 and Figure 3, coordinate control bracing or strutting arrangement 1 can be the mechanical arm by coordinate control, also can be the equipment such as main shaft of numerical control machine tool by coordinate control, can realize multi-coordinate and control.

As shown in Figure 4, described pick-up unit 2 comprises body 21 and detection head 23;

Body 21 rear end is connected with coordinate control bracing or strutting arrangement 1, front end is connected with detection head 23 rear end, body 21 is provided with towards the pattern-recognition sensor in detection head 23 direction, position transducer and range sensor, and pattern-recognition sensor can be optical image sensor, ultrasonic sensor, X ray sensor etc.; Body 21 inside is provided with electrical control mechanism 22, and electrical control mechanism 22 comprises power module, data processing module and data transmission blocks, and power module provides electric energy for data processing module and data transmission blocks;

Detection head 23 is provided with and detects medium emission device 231 and detect medium feed back receiver 232, detecting medium can be ultrasound wave or the medium such as light source, infrared ray, detects medium emission device 231 and detect medium feed back receiver 232 to be electrically connected with the data processing module of electrical control mechanism 22 respectively.

Described information processing electric control gear 3 comprises industrial control computer, electric power loop, pick-up unit position control loop, pattern-recognition loop, analyzes planning detected parameters loop, detection control loop, Data Analysis Services loop, printout loop etc., industrial control computer is electrically connected with pattern-recognition sensor, position transducer, range sensor and the electrical control mechanism 22 on body 21 respectively, and industrial control computer is electrically connected with coordinate control bracing or strutting arrangement 1.

The principle of work of this workpiece intelligent metering detecting unit: as Fig. 2, shown in Fig. 3, pick-up unit 2 is arranged on coordinate control bracing or strutting arrangement 1, workpiece for measurement 4 testing platform or platen in place after, the electric power loop of log-on message process electric control gear 3, workpiece intelligent metering detecting unit is started working, coordinate control bracing or strutting arrangement 1 action band motion detection device 2 is first by the pattern-recognition sensor on body 21, position transducer and range sensor feedback carry out pattern-recognition to workpiece for measurement, solid modelling, after analyzing planning detection path, planning detected parameters loop and correlation parameter, industrial control computer controls the action of coordinate control bracing or strutting arrangement 1 makes pick-up unit 2 move to the detection coordinates reference point of program setting, successively the check point of workpiece 4 to be detected is detected according to detection path, detect the detection that namely path at the end completes workpiece 4, data result printout will be detected in printout loop.

When system does not start (during zero position), coordinate control bracing or strutting arrangement 1 is located, and the detection head 23 of pick-up unit 2 is positioned at the zero position dead state towards workpiece for measurement 4; After workpiece for measurement 4 is in place, the electric power loop of log-on message process electric control gear 3, workpiece intelligent metering detecting unit is started working:

Industrial control computer sends instruction and makes pick-up unit position control loop and pattern-recognition loop starts, industrial control computer controls coordinate control bracing or strutting arrangement 1 and moves according to preset program and coordinates computed, namely pattern-recognition sensor on body 21 feeds back the shape of workpiece 4, size, the information such as position are to industrial control computer, analyze planning detected parameters loop works, first industrial control computer carries out d solid modeling by the information of pattern-recognition sensor feedback, generate batten entity function and store, batten density depends on the accuracy of detection requirement of detected workpiece,

If when the three-dimensional modeling data information of workpiece 4 to be detected and batten entity function are already present data messages in database, namely there is the three-dimensional entity model of detected workpiece 4 and the standard workpiece drawing information of batten entity function and this workpiece 4 in database, industrial control computer compares according to already present data message, according to already present data message selected reference face or reference point, then coordinate system is re-established with reducing mechanism cumulative errors to greatest extent according to selected reference field or reference point, call the starting point in already present optimal detection path, end point location information also calculates this starting point, final position is relative to selected reference field or the relative coordinate values of reference point in the coordinate system re-established, call approaching distance and approaching the informations parameter such as number of times of detection head 23 to workpiece 4 measured surface or hole,

If when the three-dimensional modeling data information of workpiece 4 to be detected and batten entity function are the data messages do not had in database, industrial control computer selectes multiple reference field or reference point according to the three-dimensional entity model of this workpiece 4 and batten entity function, then multiple coordinate system is re-established according to selected reference field or reference point, according to measured surface or hole, relative position relation in multiple coordinate system corrects the coordinate system re-established, final generation optimum coordinates system is with reducing mechanism cumulative errors to greatest extent, then the starting point in optimal detection path is planned, terminal is relative to the relative coordinate values of selected reference field or reference point, setting detection head 23 to workpiece 4 measured surface or hole approach distance and approach the information such as number of times, store coherent detection information programme and pass to central control computer by number bus, can approaching distance and approaching the information such as number of times and revise this optimal detection path and detection head 23 to workpiece 4 measured surface or hole by central control computer,

Then industrial control computer makes the detection head 23 of pick-up unit 2 be positioned at reference field or the reference point coordinate position of program selecting according to coordinate system control coordinate control bracing or strutting arrangement 1 action re-established;

Detection control loop starts, electrical control mechanism 22, detection medium emission device 231 on detection head 23 and detection medium feed back receiver 232 work simultaneously, industrial control computer controls the action of coordinate control bracing or strutting arrangement 1 according to the coherent detection information programme stored makes detection head 23 move to just to the first measured surface of workpiece 4 or the desired location in hole, detect detection medium orientation that medium emission device 231 launches to beat and return detected medium feed back receiver 232 at the first measured surface of measured workpiece 4 or the detection faces back reflection in hole and receive, the data processing module of electrical control mechanism 22 receives to detect medium feed back receiver 232 feedack generation ground floor data and by data transmission blocks, layer data is sent to industrial control computer and stores, then industrial control computer controls the action of coordinate control bracing or strutting arrangement 1 and makes detection head 23 approach to setpoint distance to the first measured surface of workpiece 4 or hole, data processing module detection medium feed back receiver 232 feedack again received on detection head 23 of electrical control mechanism 22 generates second layer data and by data transmission blocks, layer data is sent to industrial control computer and stores, by that analogy, number of times is approached until complete, when there is pole location in the three-dimensional entity model and batten entity function of this workpiece 4, namely there are phase cross surface, intersection, intersecting lens, joining, circular cone point etc., although be continuous function, but its slope of differential is different from different directions, namely discontinuously position is led, industrial control computer controls the action of coordinate control bracing or strutting arrangement 1 according to the coherent detection information programme stored to be made detection head 23 move to the measured surface of workpiece 4 or hole according to the different directions of the coordinate system re-established to approach, and completes to approach number of times and generate and organize layer data more, detection head 23 rollback is to desired location, simultaneously, Data Analysis Services loop works, all layer data are generated batten data by data continuity analysis, specificity analysis and numerical radius and store by industrial control computer, and become spline approxmation function according to batten data fitting, then calculate final detection data according to spline approxmation function and store, completing the first measured surface of workpiece 4 or the detection in hole,

Then industrial control computer control the action of coordinate control bracing or strutting arrangement 1 make detection head 23 to program setting, the second measured surface of detecting workpiece 4 on path or hole approach to setpoint distance, repeats above-mentioned steps;

The like, during to the terminal point coordinate position of program setting, namely complete the detection of workpiece 4, detection head 23 gets back to zero position, and data result printout will be detected in printout loop.

For the turbine in turbocharger of motor and impeller, curve-tooth bevel gears etc. have the parts of curved-surface structure, how to ensure consistance and the continuity of curved surface, and to prevent tolerance range from drifting about be difficult point in process always, equally, how detecting the consistance of curved surface and continuity is also difficult point in gauge check process, for ensureing that crudy adopts sampling observation usually, sequence examines the mode of contact detection, adopt this workpiece intelligent metering detecting unit, main shaft pick-up unit 2 being directly installed on machining tool can realize on-line checkingi, same as above, by comparing according to three-dimensional modeling data and preset standard workpiece drawing information, numerical radius and generation batten data, and become spline approxmation function according to batten data fitting and finally detect data according to the calculating of spline approxmation function, detection efficiency is high, and it is large to detect data volume, the three-dimensional truth of measured workpiece can be reflected, accuracy rate significantly improves.

For having the manufacturing defect such as casting flaw, welding deformation and there are the complex structure parts of multi-step process, first detect before blank processing, industrial control computer can compare according to three-dimensional modeling data and preset standard workpiece drawing information, generate dimensional discrepancy data or the figure of overall tested complex parts and master pattern, can processing be instructed by these dimensional discrepancy data or figure, part rejection rate can be reduced to greatest extent.

After checkout procedure for the batch workpiece 4 of same lathe, same manufacturing procedure, same process tool processing, Data Analysis Services loop also can be carried out data continuity analysis, specificity analysis and numerical radius and be generated batten data according to accumulative testing result, spline approxmation function is become according to batten data fitting, and then this process tool wear extent cycle can be known, take to control tolerance range drift measure according to this data-guiding.

For same lathe, same manufacturing procedure, after the checkout procedure of the batch workpiece 4 all adopting the process tool of identical wear extent to process, data continuity analysis also can be carried out according to accumulative testing result in Data Analysis Services loop, specificity analysis and numerical radius generate batten data, spline approxmation function is become according to batten data fitting, and then the machine tool accuracy period of change of this lathe can be known, thus can when processing error situation occurs the very first time know whether be machine tool accuracy change cause overproof, take to control tolerance range drift measure according to this data-guiding.

For the ease of the on-line checkingi in complex part manufacturing procedure process, as further improvement of the utility model scheme, the Morse's taper structure coordinated with main shaft of numerical control machine tool is arranged in described body 21 rear end.

The power module of described electrical control mechanism 22 can adopt the mode that is directly electrically connected with the industrial control computer of information processing electric control gear 3 to provide electric energy for data processing module and data transmission blocks, also the mode that is electrically connected with the industrial control computer of information processing electric control gear 3 by charging head can be adopted to provide electric energy for data processing module and data transmission blocks, or adopt the mode of battery to provide electric energy for data processing module and data transmission blocks, because pick-up unit 2 can be arranged on coordinate control bracing or strutting arrangements 1 as different in mechanical arm or main shaft of numerical control machine tool etc., therefore directly electrical connection is not easy to change different coordinate control bracing or strutting arrangements 1, the mode of battery need regularly replace battery, inconvenient, therefore, preferred first scheme, namely, as preferred version of the present utility model, the power module of described electrical control mechanism 22 comprises rechargeable battery pack, pick-up unit 2 is also provided with charging head, charging head is electrically connected with the power module rechargeable battery pack of electrical control mechanism 22, described coordinate control bracing or strutting arrangement 1 is provided with the cradle coordinated with charging head, cradle is electrically connected with the industrial control computer of information processing electric control gear 3.

In order to realize can detecting different workpieces for measurement 4 according to different size and test item, as further improvement of the utility model scheme, described detection head 23 is replaceable, namely, described body 21 front end is connected with detection head 23 rear end by such as the quick-connect machanism 211 with self-locking positioning mechanism such as hydraulic locking, before the different workpiece for measurement 4 of detection, operating personnel can control opening of quick-connect machanism 211 as required and realize changing detection head 23 with locking.

For realizing functionalized, realization replacing detection head 23 automatically further, as improvement project of the present utility model, as shown in Figure 1, this workpiece intelligent metering detecting unit also comprises detection head locating rack 5, the detection head order that need change is erected on detection head locating rack 5, and detection head locating rack 5 location is arranged near coordinate control bracing or strutting arrangement 1, described information processing electric control gear 3 also comprises detection head and changes loop, and industrial control computer is electrically connected with quick-connect machanism 211, when workpiece 4 information in industrial control computer calling data storehouse need use the detection head of other sizes, then detection head changes loop, pattern-recognition sensor on body 21, position transducer and range sensor are started working simultaneously, industrial control computer controls the action of coordinate control bracing or strutting arrangement 1 makes detection head 23 move to the desired location of detection head locating rack 5 and be erected at after on detection head locating rack 5, industrial control computer controls quick-connect machanism 211 and opens, the detection head 23 i.e. stabilizing bracket being connected to pick-up unit 2 front end is located on detection head locating rack 5, then the action of industrial control computer control coordinate control bracing or strutting arrangement 1 makes pick-up unit 2 front end be positioned the detection head rear end that need change, after the detection head that need change is inserted in pick-up unit 2 front end, industrial control computer controls quick-connect machanism 211 and locks, namely detection head is firmly connected with pick-up unit 2 front end, system gets back to zero position, realize detecting head automatic replacement.

As a kind of embodiment of the present utility model, described detection medium emission device 231 and detection medium feed back receiver 232 are light source emitter and light source feedback receiver.

In order to Measurement accuracy measured workpiece 4, as further improvement of the utility model scheme, the quantity of described detection medium emission device 231 is set to more than one piece, more than one piece detects that medium emission device 231 is rounded to be uniformly arranged on detection head 23 front end face, described detection medium feed back receiver 232 is arranged in the circular scope of circular uniform detection medium emission device 231, and the light source irradiation detecting the transmitting of medium emission device 231 is received on back reflection to the detection medium feed back receiver 232 in circular scope on measured workpiece 4.

In order to more Measurement accuracy measured workpiece 4, as further improvement of the utility model scheme, the described rounded uniform more than one piece be arranged on detection head 23 front end face detects medium emission device 231 and launches different wave length respectively, the light source of frequency, detect medium feed back receiver 232 and receive different wave length, the light signal of frequency is also changed and is passed to the data processing module of electrical control mechanism 22, layer data is sent to industrial control computer by data transmission blocks and stores by data processing module, Data Analysis Services loop is according to different wave length, the light source data information of frequency carries out data continuity analysis, specificity analysis and numerical radius generate final SPL function and store, and calculate final detection data according to final batten curvilinear function and store, thus realize more Measurement accuracy measured workpiece 4.

All can be detected for all detection faces of measured workpiece 4 can be made, especially for the workpiece that machined surface is more, as further improvement of the utility model scheme, this workpiece intelligent metering detecting unit also comprises coordinate control position changing device, coordinate control position changing device is arranged near testing platform, coordinate control position changing device comprises workpiece grabbing mechanism and coordinate control switching mechanism, described information processing electric control gear 3 also comprises location of workpiece transformation loop, industrial control computer is electrically connected with coordinate control position changing device, coordinate control position changing device can grabbing workpiece 4 go forward side by side row-coordinate control evolution, after workpiece 4 evolution, three-dimensional entity model carries out evolution simultaneously, detected parameters can detect for the detection faces after evolution after again automatically setting.

This workpiece intelligent metering detecting unit is Digital Control unit, can realize concentrating digital management with the number bus seamless link of digital plant.

This workpiece intelligent metering detecting unit is launched as ultrasound wave or light source by the detection medium emission device 231 on detection head 23, infrared rays etc. detect medium, receive orientation by the detection medium feed back receiver 232 on detection head 23 and beat the detection medium returned at measured workpiece 4 detection faces back reflection, and be converted to electric signal, receive feedack by the data processing module of electrical control mechanism 22 generate ground floor data and by data transmission blocks, layer data be sent to industrial control computer storage, then again detect after approaching certain distance and layer data is sent to industrial control computer storage, by that analogy, many groups layer data is sent to industrial control computer and stores, all layer data are analyzed by data continuity by industrial control computer, specificity analysis and numerical radius generate batten data and store, and become spline approxmation function according to batten data fitting, then calculate final detection data according to spline approxmation function and store, complete the measured surface of workpiece 4 or the detection in hole, it is a kind of non-contact detection, avoid measurement instrument directly to contact with measured workpiece 4 measurement instrument produced and wear and tear, measurement instrument is fragile, there is the defects such as artificial individual checkout discrepancy in metric results, owing to being controlled the action of coordinate control bracing or strutting arrangement 1 by industrial control computer, coordinate control bracing or strutting arrangement 1 can be the mechanical arm by coordinate control, also can be the equipment such as main shaft of numerical control machine tool by coordinate control, therefore pick-up unit 2 is arranged on coordinate control bracing or strutting arrangement 1 and can realizes automation mechanized operation, decrease artificial participation, detection efficiency is higher, because industrial control computer carries out d solid modeling by the information of pattern-recognition sensor feedback, generate batten entity function and store, and selected reference face or reference point nearby, then base coordinate system and some subcoordinate systems is re-established according to selected reference field or reference point, then adopt numerical radius and generation batten data and become the mode of spline approxmation function according to batten data fitting, and finally detect data according to the calculating of spline approxmation function, the optimum basis coordinate system generated after the coordinate system that simultaneously re-establishes corrects and some subcoordinate systems can reducing mechanism cumulative errorss to greatest extent, therefore accuracy of detection is higher, the on-line checkingi that accuracy rate is higher can be realized, the parts for the turbine in turbocharger of motor and impeller, curve-tooth bevel gear etc. with curved-surface structure can realize higher detection efficiency and accuracy rate, for having the manufacturing defect such as casting flaw, welding deformation and there are the complex structure parts of multi-step process, first detect before blank processing, dimensional discrepancy data or the figure of overall tested complex parts and master pattern can be generated, can processing be instructed by these dimensional discrepancy data or figure, part rejection rate can be reduced to greatest extent, the spline approxmation function that can become according to batten data fitting after the checkout procedure for the batch workpiece 4 of same lathe, same manufacturing procedure, same process tool processing knows this process tool wear extent cycle, takes to control tolerance range drift measure according to this data-guiding, for same lathe, same manufacturing procedure, all adopt the process tool of identical wear extent to process batch workpiece 4 checkout procedure after the spline approxmation function that can become according to batten data fitting know the machine tool accuracy period of change of this lathe, thus can when processing error situation occurs the very first time know whether be machine tool accuracy change cause overproof, take to control tolerance range drift measure according to this data-guiding, be specially adapted to number bus factory.

Claims (9)

1. a workpiece intelligent metering detecting unit, comprise coordinate control bracing or strutting arrangement (1), pick-up unit (2) and information processing electric control gear (3), coordinate control bracing or strutting arrangement (1) comprises coordinate control mechanism; It is characterized in that,

Described pick-up unit (2) comprises body (21) and detection head (23); Body (21) rear end is connected with coordinate control bracing or strutting arrangement (1), front end is connected with detection head (23) rear end, body (21) is provided with towards the pattern-recognition sensor in detection head (23) direction, position transducer and range sensor, body (21) inside is provided with electrical control mechanism (22), and electrical control mechanism (22) comprises power module, data processing module and data transmission blocks; Detection head (23) is provided with and detects medium emission device (231) and detect medium feed back receiver (232), detects medium emission device (231) and detect medium feed back receiver (232) to be electrically connected with the data processing module of electrical control mechanism (22) respectively;

Described information processing electric control gear (3) comprises industrial control computer, electric power loop, pick-up unit position control loop, pattern-recognition loop, analyzes planning detected parameters loop, detection control loop, Data Analysis Services loop, printout loop etc., industrial control computer is electrically connected with the pattern-recognition sensor on body (21), position transducer, range sensor and electrical control mechanism (22) respectively, and industrial control computer is electrically connected with coordinate control bracing or strutting arrangement (1).

2. workpiece intelligent metering detecting unit according to claim 1, is characterized in that, the Morse's taper structure coordinated with main shaft of numerical control machine tool is arranged in described body (21) rear end.

3. workpiece intelligent metering detecting unit according to claim 1 and 2, it is characterized in that, the power module of described electrical control mechanism (22) comprises rechargeable battery pack, (2) are also provided with charging head to pick-up unit, charging head is electrically connected with the power module rechargeable battery pack of electrical control mechanism (22), described coordinate control bracing or strutting arrangement (1) is provided with the cradle coordinated with charging head, and cradle is electrically connected with the industrial control computer of information processing electric control gear (3).

4. workpiece intelligent metering detecting unit according to claim 1 and 2, is characterized in that, described body (21) front end is connected with detection head (23) rear end by quick-connect machanism (211).

5. workpiece intelligent metering detecting unit according to claim 4, it is characterized in that, this workpiece intelligent metering detecting unit also comprises detection head locating rack (5), the detection head order that need change is erected on detection head locating rack (5), and detection head locating rack (5) location is arranged near coordinate control bracing or strutting arrangement (1); Described information processing electric control gear (3) also comprises detection head and changes loop, and industrial control computer is electrically connected with quick-connect machanism (211).

6. workpiece intelligent metering detecting unit according to claim 1 and 2, is characterized in that, described detection medium emission device (231) and detection medium feed back receiver (232) are light source emitter and light source feedback receiver.

7. workpiece intelligent metering detecting unit according to claim 6, it is characterized in that, the quantity of described detection medium emission device (231) is set to more than one piece, more than one piece detects that medium emission device (231) is rounded to be uniformly arranged on detection head (23) front end face, and described detection medium feed back receiver (232) is arranged in the circular scope of circular uniform detection medium emission device (231).

8. workpiece intelligent metering detecting unit according to claim 7, it is characterized in that, the described rounded uniform more than one piece be arranged on detection head (23) front end face detects the light source that medium emission device (231) launches different wave length, frequency respectively.

9. workpiece intelligent metering detecting unit according to claim 1 and 2, it is characterized in that, this workpiece intelligent metering detecting unit also comprises coordinate control position changing device, coordinate control position changing device is arranged near testing platform, coordinate control position changing device comprises workpiece grabbing mechanism and coordinate control switching mechanism, described information processing electric control gear (3) also comprises location of workpiece transformation loop, and industrial control computer is electrically connected with coordinate control position changing device.