CN210426371U - On-machine measuring device suitable for energy-containing rotary part - Google Patents
On-machine measuring device suitable for energy-containing rotary part Download PDFInfo
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- CN210426371U CN210426371U CN201921777837.1U CN201921777837U CN210426371U CN 210426371 U CN210426371 U CN 210426371U CN 201921777837 U CN201921777837 U CN 201921777837U CN 210426371 U CN210426371 U CN 210426371U
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Abstract
The utility model discloses a be suitable for and contain ability rotating part at quick-witted measuring device belongs to combined material machining technical field. 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 utility model discloses the mature mechanical cutting technology of the energy-containing material of footing has overcome prior art's not enough, provides an automatic accurate measuring method on throne of function integration, convenient operation.
Description
Technical Field
The utility model relates to a combined material machining technical field, more specifically the utility model relates to a be suitable for containing can rotary part at quick-witted measuring device that says so.
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.
By comprehensively observing, the prior art and the report of the utility model still have the following defects for solving the on-site measurement problem in the automatic processing of the 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 utility models aim at the application in the field, lack technical expansibility, and the processing surface quality of energetic parts is difficult to reach 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.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides one kind and is suitable for containing can gyration part at quick-witted measuring device, can effectively solve the gyration type and contain the technological problem in the part machining automation, applicable in multiple general numerical control lathe scene, provides better technical support for satisfying the unmanned requirement of PBX energetic material course of working.
In order to achieve the above purpose, the utility model 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 utility model also provides a be suitable for the method that contains ability revolving parts at the machine measurement external diameter, including foretell measuring device, including following step:
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 utility model also provides a be suitable for the method that contains ability revolving part at the online measurement blind hole internal diameter, including foretell measuring device, including following step:
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 utility model also provides a be suitable for containing can rotary part at the method of measuring blind hole height on-machine, including foretell measuring device, including following step:
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 utility model also provides a be suitable for containing can rotary part at the method of measuring blind hole height on-machine, including foretell measuring device, including following step:
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 utility model discloses based on the method of error separation principle and benchmark transform, carry out integrated design with adapter, amesdial and standard cutter arbor, realize the accurate measurement function in place to rotating member with the help of lathe 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 utility model beneficial effect who has is:
(1) the utility model discloses it is current ripe machining process to set up the energetic material, have the industry standard interface and can use with present general processing equipment cooperation, be suitable for the automatic detection in situ of gyration type turning work piece to use, provide the key technology for the near field unmanned problem of solving PBX material processing and support. The utility model has the advantages of the function is integrated, control convenience, low cost, can regard as the lathe annex to use, and need not plus power, avoid dangerous source (heat, electricity, power etc.) to introduce, can effectively promote energetic material machining's essential safety level and automatic unit system's integrated reliability.
(2) The utility model 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 on-site detection function of the rotary part by means of a machine tool system; still from measuring method and key technology two aspects right the utility model discloses a good taste reliable control gives concrete guidance, like error source, accuracy control, synchronous measurement and automatic discrimination etc. have better technical spreading value, and this also provides the new approach for promoting the safe, high-quality and high-efficient processing technology development of this type of work piece.
Drawings
Fig. 1 is a schematic diagram of the structure and the outer diameter measuring method of the on-machine measuring device for the energy-containing rotary part of the present invention.
Fig. 2 is a schematic view of the structure and the inner hole measuring method of the on-machine detecting device for the energy-containing rotary part of the present invention.
Fig. 3 is a schematic view of the structure and blind hole height measurement method of the on-machine inspection device for the energy-containing rotary part of the present invention.
Fig. 4 is the utility model relates to a be suitable for containing can rotary part at quick-witted detection device measuring principle and detection error analysis sketch map.
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 only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work 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 further provides a method for measuring the outer diameter of a rotatable part on a machine, including the measuring device of embodiment 1, comprising 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 further provides a method for on-machine measurement of the inner diameter of a blind hole of a rotatable part, including the measuring device of embodiment 1, including 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 further provides a method for measuring the height of a blind hole on a machine by using a rotatable part, including the measuring device described in embodiment 1, including 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 utility model also provides a method of being different from embodiment 4 in machine measurement blind hole height, including embodiment 1 measuring device, but not identical with the structure in embodiment 1 again, through designing two amesdial 2 on table frame 1, specifically include following step:
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 exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
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.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921777837.1U CN210426371U (en) | 2019-10-22 | 2019-10-22 | On-machine measuring device suitable for energy-containing rotary part |
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| CN201921777837.1U CN210426371U (en) | 2019-10-22 | 2019-10-22 | On-machine measuring device suitable for energy-containing rotary part |
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| CN210426371U true CN210426371U (en) | 2020-04-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865458A (en) * | 2021-10-25 | 2021-12-31 | 中国航发贵州黎阳航空动力有限公司 | Device and method for measuring runout of inner profile surface and outer circle of aero-engine part |
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2019
- 2019-10-22 CN CN201921777837.1U patent/CN210426371U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865458A (en) * | 2021-10-25 | 2021-12-31 | 中国航发贵州黎阳航空动力有限公司 | Device and method for measuring runout of inner profile surface and outer circle of aero-engine part |
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