CN110645876A - On-machine measuring device and method suitable for energy-containing rotary part - Google Patents
On-machine measuring device and method suitable for energy-containing rotary part Download PDFInfo
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- CN110645876A CN110645876A CN201911008282.9A CN201911008282A CN110645876A CN 110645876 A CN110645876 A CN 110645876A CN 201911008282 A CN201911008282 A CN 201911008282A CN 110645876 A CN110645876 A CN 110645876A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/004—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
- G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/401—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37457—On machine, on workpiece
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a device and a method suitable for on-machine measurement of an energy-containing rotary part, and belongs to the technical field of machining of composite materials. Including the sucking disc that is used for adsorbing the work piece, the table frame, the measuring apparatu, the adapter, the survey needle, the table frame is installed on the numerical control lathe, and the flexible centre gripping measuring apparatu of perpendicular and horizontal direction can be followed respectively to the execution end of table frame, the survey needle includes perpendicular survey needle and horizontal survey needle, the measuring apparatu can be through perpendicular survey needle of adapter installation and horizontal survey needle, perpendicular survey needle and horizontal survey needle all with the work piece with the heart contact and be in the coplanar. Three characteristic dimension measurements of the outer diameter, the inner hole and the height can be realized by using a method of reference transformation and error separation; the device can also realize the function of in-situ measurement independent of the feeding precision of the machine tool by adopting a multi-point synchronous measurement mode. The invention provides an automatic accurate in-place measuring method with integrated functions and convenient operation based on the mature mechanical cutting process of energetic materials, which overcomes the defects of the prior art.
Description
Technical Field
The invention relates to the technical field of composite material machining, in particular to a device and a method suitable for on-machine measurement of an energy-containing rotary part.
Background
The high-energy explosive PBX (Polymer Bonded Explosives) is an energetic functional material with excellent comprehensive performance and is widely applied to various weapon systems of land, sea, air and secondary cannons. With the rapid development of weaponry systems, the need for precision machining of various energetic material components has increased, and it has become desirable to increase the level of automation of the machining process. Particularly, for turning of a rapidly-increased number of revolving body parts, the on-site detection process of common dimensional characteristics (outer diameter, inner diameter and height) of the revolving body parts can only manually realize measurement by using a general gauge (a vernier caliper, a dial indicator and the like) at present, and the method depends on experience and has safety and quality risks. Therefore, according to the special design specifications of energetic material machining devices, the development of a simple, easy, accurate and reliable automatic special detection device has great significance for safe and efficient production of national defense and military departments.
At present, the in-place detection mode widely adopted for turning of the revolving body mainly comprises the following steps: the numerical control system is configured on a machine measuring head, a special detection measuring tool for specified characteristics, calibration sample plate comparison measurement, non-contact laser measurement and the like. For energetic material turning, the existing similar tools are limited by integration conditions, detection precision, system reliability and the like, so that the special requirements of the energetic material automatic operation are difficult to meet. Chinese patent publication No. CN103659467B discloses a method for calibrating the axial pre-stroke of a trigger probe, which corrects the on-machine measurement result based on the calibration result, thereby avoiding the measurement error caused by the difference between the positions of the probe and the workpiece of the probe and the position of the measuring point recorded by a numerical control system during the measurement process, and improving the on-machine measurement accuracy depending on the numerical control system; the Chinese patent with the publication number of CN203772250U discloses a multi-roller large-diameter measuring device, which adopts a multi-roller diameter measuring device of an elastic supporting mechanism to solve the problem of online measurement of large-diameter parts, thereby improving the efficiency and accuracy of the roller method for measuring the large diameter; chinese patent publication No. CN204902810U discloses an outer circle diameter measuring instrument, which comprises a clamping foot seat, a distance measuring ruler, a first clamping foot, a second clamping foot, a linear displacement sensor, an angular displacement sensor, and a controller, wherein the outer circle diameter of a workpiece to be measured is obtained according to the measurement of partial circular arc of the workpiece to be measured, so as to realize the measurement of the diameter of an incomplete spherical or circular workpiece; the Chinese patent with the publication number of CN107726947A discloses a diameter measuring method based on a shear ruler, the diameter phi of a measured object is obtained by calculating based on the length of a straight ruler and the opening angle of the shear ruler measured by a protractor, the structure is simple, and parts with low precision requirements can be automatically measured; chinese patent publication No. CN107238352A discloses an on-machine measuring device and method for profile laser of parts with revolving structural features based on a numerically controlled lathe, wherein an adjustable and detachable clamp is designed to clamp a sensor, an assembly body of the clamp is mounted on a tool rest of the numerically controlled lathe in a side positioning manner, and a ceramic standard ball is used to calibrate the position and pose of a measuring head, thereby realizing non-contact laser on-site measurement of parts with high surface quality.
In summary, the prior art and the report of the invention still have the following defects for solving the problem of in-situ measurement in the automatic processing of energetic materials: 1) the on-machine measuring head mode must rely on the feeding precision of a numerical control system, and data acquisition and analysis have higher technical difficulty and are not beneficial to automatic realization; 2) the special measuring tool for the designated characteristics and a comparison template method are difficult to realize multi-characteristic centralized measurement, have high requirements on the structural design and the manufacturing precision of the tool, and are difficult to realize automatically depending on the experience of an operator; 3) most of the invention aims at the application in the field, the technology expansibility is lacked, and the processing surface quality of the energy-containing part is difficult to meet the non-contact measurement requirement. Therefore, the design and research of a set of safe, reliable, practical and accurate in-place measuring device based on the mature processing technology of energetic materials is very beneficial to the realization of automatic integration of the optimized processing technology.
Disclosure of Invention
The invention overcomes the defects of the prior art, provides the device and the measuring method suitable for on-machine measurement of the energy-containing rotary part, can effectively solve the process problem in the machining automation of the rotary energy-containing part, can be suitable for various universal numerical control lathe fields, and provides better technical support for meeting the unmanned requirement of the machining process of the PBX energy-containing material.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a be suitable for and contain ability rotating part at quick-witted measuring device, includes the sucking disc that is used for adsorbing the work piece, still includes table frame, measuring apparatu, adapter, survey needle, the table frame is installed on numerical control lathe, and the flexible centre gripping measuring apparatu of perpendicular and horizontal direction can be followed respectively to the execution end of table frame, the survey needle includes perpendicular survey needle and horizontal survey needle, the measuring apparatu can be through perpendicular survey needle of adapter installation and horizontal survey needle, perpendicular survey needle and horizontal survey needle all with the work piece with the heart contact and be in the coplanar.
Furthermore, the gauge stand adopts a standard cutter bar design, and a vertical part and a horizontal part for flexibly clamping the dial gauge are arranged at the execution tail end of the cutter bar.
Further, the measuring instrument is a mechanical or wireless digital display type standard dial indicator.
The invention also provides a method for measuring the outer diameter of the energy-containing rotary part on the machine, which comprises the following steps:
step 1: fixedly mounting a sucker on the end surface of a main shaft of a machine tool, finishing the machining of an outer diameter process reference X0 column section in a self-turning mode, and measuring an XO value;
step 2: the outer cylinder X1 of the workpiece is machined by feeding;
and step 3: calling a whole set of measuring device on the gauge stand, starting an outer diameter measuring program, rotating a main shaft at a low speed, firstly measuring the outer diameter reference X0 (coordinate value and zero return of a dial gauge) of the sucker by using a horizontal measuring needle, and finishing the outer diameter of a workpiece according to the advancing track of a numerical control program 'retracting-lifting-feeding': revolution measurement of X1+ Δ X (coordinate value), the number of dial indicators is Δ X;
and 4, step 4: calculating a formula through the workpiece outer diameter D1: d1 ═ 2 × X0 | X0-X1- Δ X |, where X0 is the measured value in step 1 and | X0-X1| is the programmed set value, i.e. accurate and automatic measurement of the outer diameter of the workpiece can be accomplished.
The invention also provides a method suitable for measuring the inner diameter of the blind hole of the energy-containing rotary part in an on-machine manner, which comprises the following steps:
step 1: fixedly mounting a sucker on the end surface of a main shaft of a machine tool, finishing the machining of an outer diameter process reference X0 column section in a self-turning mode, and measuring an XO value;
step 2: feeding to finish machining of a workpiece blind hole X2;
and step 3: calling a whole set of measuring device on a gauge stand, starting a blind hole inner diameter measuring program, rotating a main shaft at a low speed, firstly measuring the outer diameter reference X0 (coordinate value and zero return of a dial gauge) of a sucker by using a vertical measuring pin, and finishing the inner diameter of a blind hole of a workpiece according to a numerical control program 'retreating-tool lifting-tool feeding-tool lowering-tool re-feeding' advancing track: revolution measurement of X2+ Δ X (coordinate value), the number of dial indicators is Δ X;
and 4, step 4: calculating a formula through the inner diameter D2 of the blind hole of the workpiece: d2 | | X0-X2- Δ X | -X2|, wherein X0 is the measured value in step 1, | X0-X2| is the programmed set value, namely can accomplish the accurate automatic measurement of the blind hole internal diameter of the workpiece.
The invention also provides a method suitable for the on-machine measurement of the height of the blind hole of the energy-containing rotary part, which comprises the following steps:
step 1: fixedly mounting the suction cup on the end surface of a main shaft of a machine tool, finishing the machining of an end surface technological reference Z0 in a self-turning mode, and measuring a Z0 value;
step 2: feeding to finish machining of a workpiece blind hole Z1;
and step 3: calling a whole set of measuring device on the gauge stand, starting a blind hole height measuring program, rotating a main shaft at a low speed, vertically installing a horizontal measuring pin, then measuring a sucking disc end surface datum Z0 (coordinate value, and enabling a dial indicator to return to zero), and completing the height of the blind hole of the workpiece according to a numerical control program 'lifting-feeding-cutting-feeding' advancing track: measuring Z1+ delta Z (coordinate value), wherein the number of dial indicators is delta Z;
and 4, step 4: calculating a formula through the height H1 of the blind hole of the workpiece: h1 | | Z1+ Δ Z | -Z0|, wherein Z0 is the measurement value in step 1, | Z0-Z1| is a programmed setting value, and therefore accurate and automatic measurement of the height of the blind hole of the workpiece can be completed.
The invention also provides a method suitable for the on-machine measurement of the height of the blind hole of the energy-containing rotary part, which comprises the following steps:
step 1: fixedly mounting the sucker on the end surface of a main shaft of a machine tool, and finishing the processing of an end surface process reference Z0 in a self-turning mode;
step 2: feeding to finish machining of a workpiece blind hole Z1;
and step 3: the method comprises the following steps that a double dial indicator is designed on an indicator frame, wherein the height difference of the installation position between the two dial indicators is Z;
and 4, step 4: calling the whole set of measuring device on the meter frame, and realizing the single feeding, the end face technological reference Z0 and the height of the blind hole of the measuring device according to the advancing track of the numerical control program cutter feeding: measurement of Z1+ Δ Z (coordinate values), where one dial indicator is Δ Z1, the other is Δ Z2, and is | Δ Z2- Δ Z1| is Δ Z;
and 5: calculating a formula through the height H2 of the blind hole of the workpiece: h2 ═ Z + - | delta Z2-delta Z1|, wherein Z is the height difference of the installation position between the two known dial indicators in the step 3, and | delta Z2-delta Z1| is the absolute value of the number difference of the two dial indicators, namely the accurate and automatic measurement of the height of the blind hole of the workpiece can be completed.
The invention is based on the error separation principle and the method of reference conversion, integrates the adapter, the dial indicator and the standard cutter bar, and realizes the function of accurately measuring the rotary part in place by means of a machine tool numerical control system. The device can be used as an accessory to be integrated in a numerical control machine tool, and three characteristic dimensions of the outer diameter, the inner hole and the height can be measured by using a method of reference transformation and error separation; the device can also realize the function of in-situ measurement independent of the feeding precision of the machine tool by adopting a multi-point synchronous measurement mode.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention is based on the existing mature mechanical processing technology of energetic materials, has an industry standard interface, can be matched with the existing general processing equipment for use, is suitable for in-situ automatic detection application of rotary turning workpieces, and provides a key technical support for solving the problem of near-field unmanned processing of PBX materials. The invention has the advantages of function integration, convenient operation and control, low cost, capability of being used as a machine tool accessory and the like, does not need additional power, avoids the introduction of dangerous sources (heat, electricity, force and the like), and can effectively improve the essential safety level of energetic material machining and the integration reliability of an automatic unit system.
(2) The invention creatively applies the design principle of error separation and reference transformation, integrates and designs the gauge stand, the dial gauge and the standard cutter bar, and realizes the multi-characteristic accurate and in-situ detection function of the rotary part by means of a machine tool system; specific guidance is given to the reliable and tasty control of the invention from two aspects of a measuring method and a key technology, such as error sources, precision control, synchronous measurement, automatic judgment and the like, so that the invention has good technical popularization value, and provides a new way for promoting the development of safe, high-quality and efficient processing technology of the workpieces.
Drawings
FIG. 1 is a schematic diagram of the structure and the outer diameter measuring method of the on-machine measuring device suitable for the energy-containing rotary part of the invention.
FIG. 2 is a schematic diagram of a structure and an inner hole measuring method suitable for an on-machine measuring device of an energy-containing rotary part.
FIG. 3 is a schematic diagram of a structure suitable for an on-machine measuring device of a rotatable part and a blind hole height measuring method.
FIG. 4 is a schematic diagram of the measurement principle and detection error analysis of the on-machine measurement device for the energy-containing rotary part according to the present invention.
The labels in the figure are: 1-gauge stand, 2-dial gauge, 3-adapter, 4.1-vertical measuring pin, 4.2-horizontal measuring pin, 5-sucker and 6-workpiece.
Detailed Description
The present invention will be further described with reference to the following examples, which are intended to illustrate only some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, other embodiments used by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1-3, based on the error separation principle and the method of reference transformation, the adapter 3, the dial indicator 2 and the standard tool bar are designed in an integrated manner, and the function of accurately measuring the position of the rotary part in place is realized by means of a machine tool numerical control system. The utility model provides a be suitable for and contain can rotary part at quick-witted measuring device, includes sucking disc 5 that is used for adsorbing work piece 6, still includes table frame 1, measuring apparatu, adapter 3, the survey needle, table frame 1 adopts the design of standard cutter arbor, can freely install and use in all kinds of numerical control lathe, is equipped with vertical portion and the horizontal part that is used for flexible centre gripping amesdial 2 at the execution end of cutter arbor. The executing tail end of the meter frame 1 can flexibly clamp the measuring instrument respectively along the vertical direction and the horizontal direction, and the measuring needles comprise a vertical measuring needle 4.1 and a horizontal measuring needle 4.2.
The measuring instrument is a mechanical or wireless digital display type standard dial indicator 2 to meet the requirements of near-field or far-end measurement, the dial indicator 2 can be provided with a vertical measuring pin 4.1 and a horizontal measuring pin 4.2 through an adapter 3, and the measuring pins in each measuring mode (outer diameter, inner hole and height) are in centering contact with a workpiece 6 and are positioned in the same plane.
The workpiece 6 belongs to an energy-containing part in the machining process, a required relative process reference can be machined by adopting a self-turning method after the workpiece is clamped on a main shaft of a machine tool by the aid of the sucker 5, and the on-machine measurement function of the workpiece 6 can be realized by matching the device with a machine tool system.
Example 2:
as shown in fig. 1 and 4, the present invention also provides a method for measuring the outer diameter of a rotatable part on machine, which comprises the measuring device of embodiment 1, and comprises the following steps:
step 1: fixedly mounting the sucker 5 on the end surface of a main shaft of a machine tool, finishing the machining of an outer diameter process reference X0 column section (the cylindricity is less than 0.003mm generally) in a self-turning mode, and measuring an XO value;
step 2: the outer cylinder X1 of the workpiece 6 is machined by feeding;
and step 3: calling the whole set of measuring device on the gauge stand 1, starting an outer diameter measuring program, rotating the main shaft at a low speed, firstly measuring the outer diameter reference X0 (coordinate value, and enabling a dial gauge 2 to return to zero) of the sucker 5 by using a horizontal measuring needle 4.2, and finishing the outer diameter of the workpiece 6 according to the advancing track of the numerical control program 'retracting-lifting-feeding': the revolution measurement of X1+ delta X (coordinate value), the number of dial indicator 2 is delta X;
and 4, step 4: the formula is calculated by the outer diameter D1 of the workpiece 6: d1 ═ 2 × X0 | X0-X1- Δ X |, where X0 is the measured value in step 1 and | X0-X1| is the programmed set value, i.e., accurate and automatic measurement of the outer diameter of workpiece 6 can be accomplished.
Example 3:
as shown in fig. 2 and 4, the present invention also provides a method for on-machine measuring the inner diameter of a blind hole of a rotatable part, which comprises the measuring device described in embodiment 1, and comprises the following steps:
step 1: fixedly mounting the sucker 5 on the end surface of a main shaft of a machine tool, finishing the machining of an outer diameter process reference X0 column section in a self-turning mode, and measuring an XO value (if the XO value exists, the operation is not needed);
step 2: finishing the processing of the blind hole X2 of the workpiece 6 by feeding;
and step 3: calling a whole set of measuring device on the gauge stand 1, starting a blind hole inner diameter measuring program, rotating a main shaft at a low speed, firstly measuring the outer diameter reference X0 (coordinate value, and enabling a dial gauge 2 to return to zero) of a sucker 5 by using a vertical measuring needle 4.1, and completing the inner diameter of a blind hole of a workpiece 6 according to a numerical control program 'retreating-lifting-feeding-lowering-re-feeding' advancing track: the revolution measurement of X2+ delta X (coordinate value), the number of dial indicator 2 is delta X;
and 4, step 4: calculating the formula through the inner diameter D2 of the blind hole of the workpiece 6: d2 | | X0-X2- Δ X | -X2|, where X0 is the measured value in step 1 and | X0-X2| is the programmed set value, i.e. the precise automatic measurement of the blind via inside diameter of workpiece 6 can be completed.
Example 4
As shown in fig. 3 and 4, the present invention also provides a method for measuring the height of a blind hole on machine by using a rotatable part, which comprises the measuring device described in embodiment 1, and comprises the following steps:
step 1: fixedly mounting the suction cup 5 on the end surface of a main shaft of a machine tool, finishing the machining of an end surface process reference Z0 in a self-turning mode, and measuring a Z0 value;
step 2: finishing the processing of the blind hole Z1 of the workpiece 6 by feeding;
and step 3: calling a whole set of measuring device on the gauge stand 1, starting a blind hole height measuring program, rotating a main shaft at a low speed, vertically installing a horizontal measuring pin 4.2, then measuring the end surface reference Z0 (coordinate value, and enabling a dial gauge 2 to return to zero) of the sucker 5, and completing the height of the blind hole of the workpiece 6 according to the advancing track of a numerical control program 'lifting-feeding-cutting': measuring Z1+ delta Z (coordinate value), wherein the number of the dial indicator 2 is delta Z;
and 4, step 4: the formula is calculated by the blind hole height H1 of the workpiece 6: h1 | | Z1+ Δ Z | -Z0|, wherein Z0 is the measurement value in step 1, | Z0-Z1| is the programmed set value, namely accurate automatic measurement of the blind hole height of the workpiece 6 can be completed.
Example 5
The invention also provides a method for measuring the height of a blind hole on machine, which is different from the method in the embodiment 4, comprises the measuring device in the embodiment 1, but has a structure which is not completely the same as that in the embodiment 1, and comprises the following steps by designing a double dial indicator 2 on a gauge stand 1:
step 1: fixedly mounting the sucker 5 on the end surface of a main shaft of a machine tool, and finishing the processing of an end surface process reference Z0 in a self-turning mode;
step 2: finishing the processing of the blind hole Z1 of the workpiece 6 by feeding;
and step 3: the double dial indicators 2 are designed on the indicator frame 1, wherein the height difference of the installation positions between the two dial indicators 2 is Z;
and 4, step 4: calling the whole set of measuring device on the meter frame 1, and realizing the single feeding, the end face technological reference Z0 and the height of the blind hole of the measuring device according to the advancing track of the numerical control program feed: measurement of Z1+ Δ Z (coordinate values), where one dial indicator 2 shows Δ Z1, the other dial indicator 2 shows Δ Z2, and is | Δ Z2- Δ Z1| is Δ Z;
and 5: the formula is calculated by the blind hole height H2 of the workpiece 6: h2 ═ Z + - | Δ Z2- Δ Z1|, where Z is the height difference between the two known dial indicators 2 in step 3 and | Δ Z2- Δ Z1| is the absolute value of the indexing difference of the two dial indicators 2, that is, the accurate and automatic measurement of the blind hole height of the workpiece 6 can be completed.
The detection method of the embodiment 2-4 is based on the principle of reference transformation, the turning reference (the rotary central shaft and the end surface) is preprocessed and then is calibrated and measured in advance, the measurement of various types of characteristics of the parts on the machine is realized by utilizing the high-precision feeding system of the machine tool, and the measurement precision is equivalent to the feeding precision of the machine tool.
The detection method of embodiment 5 is based on the error separation principle, can adopt a mode of synchronous measurement of a plurality of dial indicators 2, does not need to depend on the program feed measurement of a machine tool, and can measure data such as X0, X1, X2, Δ X, Z0, Z1, Δ Z and the like in a single time after the process preparation is completed, and can complete the automatic measurement of the sizes of the features (outer diameter, inner diameter of a blind hole and height of the blind hole) according to the same formula, thereby avoiding the influence of the error of a machine tool feeding system.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a be suitable for and contain ability rotating part at quick-witted measuring device, is including the sucking disc that is used for adsorbing the work piece, its characterized in that still includes the table frame, the measuring apparatu, adapter, the survey needle, the table frame is installed on the numerical control lathe, and the flexible centre gripping measuring apparatu of perpendicular and horizontal direction can be followed respectively to the execution end of table frame, the survey needle includes perpendicular survey needle and horizontal survey needle, the measuring apparatu can be through perpendicular survey needle of adapter installation and horizontal survey needle, and perpendicular survey needle and horizontal survey needle all with the work piece heart contact and be in the coplanar.
2. The device for on-machine measurement of rotatable parts according to claim 1, wherein the gauge stand is of a standard knife bar design, and a vertical part and a horizontal part for flexibly clamping the dial gauge are provided at the execution end of the knife bar.
3. An on-machine measuring device suitable for containing rotatable parts according to claim 1, characterized in that the measuring instrument is a standard dial indicator of mechanical or wireless digital display type.
4. A method for on-machine measurement of the outer diameter of a rotatable part comprising the measuring device of any one of claims 1 to 3, comprising the steps of:
step 1: fixedly mounting a sucker on the end surface of a main shaft of a machine tool, finishing the machining of an outer diameter process reference X0 column section in a self-turning mode, and measuring an XO value;
step 2: the outer cylinder X1 of the workpiece is machined by feeding;
and step 3: calling a whole set of measuring device on the gauge stand, starting an outer diameter measuring program, rotating a main shaft at a low speed, firstly measuring the outer diameter reference X0 (coordinate value and zero return of a dial gauge) of the sucker by using a horizontal measuring needle, and finishing the outer diameter of a workpiece according to the advancing track of a numerical control program 'retracting-lifting-feeding': revolution measurement of X1+ Δ X (coordinate value), the number of dial indicators is Δ X;
and 4, step 4: calculating a formula through the workpiece outer diameter D1: d1 ═ 2 × X0 | X0-X1- Δ X |, where X0 is the measured value in step 1 and | X0-X1| is the programmed set value, i.e. accurate and automatic measurement of the outer diameter of the workpiece can be accomplished.
5. A method for on-machine measuring the inside diameter of a blind hole adapted to contain a rotatable part, comprising the measuring device of any one of claims 1-3, comprising the steps of:
step 1: fixedly mounting a sucker on the end surface of a main shaft of a machine tool, finishing the machining of an outer diameter process reference X0 column section in a self-turning mode, and measuring an XO value;
step 2: feeding to finish machining of a workpiece blind hole X2;
and step 3: calling a whole set of measuring device on a gauge stand, starting a blind hole inner diameter measuring program, rotating a main shaft at a low speed, firstly measuring the outer diameter reference X0 (coordinate value and zero return of a dial gauge) of a sucker by using a vertical measuring pin, and finishing the inner diameter of a blind hole of a workpiece according to a numerical control program 'retreating-tool lifting-tool feeding-tool lowering-tool re-feeding' advancing track: revolution measurement of X2+ Δ X (coordinate value), the number of dial indicators is Δ X;
and 4, step 4: calculating a formula through the inner diameter D2 of the blind hole of the workpiece: d2 | | X0-X2- Δ X | -X2|, wherein X0 is the measured value in step 1, | X0-X2| is the programmed set value, namely can accomplish the accurate automatic measurement of the blind hole internal diameter of the workpiece.
6. A method for on-machine measuring the height of a blind hole adapted to contain a rotatable part, comprising the measuring device of any one of claims 1-3, comprising the steps of:
step 1: fixedly mounting the suction cup on the end surface of a main shaft of a machine tool, finishing the machining of an end surface technological reference Z0 in a self-turning mode, and measuring a Z0 value;
step 2: feeding to finish machining of a workpiece blind hole Z1;
and step 3: calling a whole set of measuring device on the gauge stand, starting a blind hole height measuring program, rotating a main shaft at a low speed, vertically installing a horizontal measuring pin, then measuring a sucking disc end surface datum Z0 (coordinate value, and enabling a dial indicator to return to zero), and completing the height of the blind hole of the workpiece according to a numerical control program 'lifting-feeding-cutting-feeding' advancing track: measuring Z1+ delta Z (coordinate value), wherein the number of dial indicators is delta Z;
and 4, step 4: calculating a formula through the height H1 of the blind hole of the workpiece: h1 | | Z1+ Δ Z | -Z0|, wherein Z0 is the measurement value in step 1, | Z0-Z1| is a programmed setting value, and therefore accurate and automatic measurement of the height of the blind hole of the workpiece can be completed.
7. A method for on-machine measuring the height of a blind hole adapted to contain a rotatable part, comprising the measuring device of any one of claims 1-3, comprising the steps of:
step 1: fixedly mounting the sucker on the end surface of a main shaft of a machine tool, and finishing the processing of an end surface process reference Z0 in a self-turning mode;
step 2: feeding to finish machining of a workpiece blind hole Z1;
and step 3: the method comprises the following steps that a double dial indicator is designed on an indicator frame, wherein the height difference of the installation position between the two dial indicators is Z;
and 4, step 4: calling the whole set of measuring device on the meter frame, and realizing the single feeding, the end face technological reference Z0 and the height of the blind hole of the measuring device according to the advancing track of the numerical control program cutter feeding: measurement of Z1+ Δ Z (coordinate values), where one dial indicator is Δ Z1, the other is Δ Z2, and is | Δ Z2- Δ Z1| is Δ Z;
and 5: calculating a formula through the height H2 of the blind hole of the workpiece: h2 ═ Z + - | delta Z2-delta Z1|, wherein Z is the height difference of the installation position between the two known dial indicators in the step 3, and | delta Z2-delta Z1| is the absolute value of the number difference of the two dial indicators, namely the accurate and automatic measurement of the height of the blind hole of the workpiece can be completed.
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| CN111438632A (en) * | 2020-04-21 | 2020-07-24 | 北京特思迪半导体设备有限公司 | Adjustable 4, 6 cun polishing pressure heads of taking wireless transmission |
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