EP3685115A1 - Système de mesure pour détecter la position spatiale d'une goupille de sécurité et procédé d'extraction d'une goupille de sécurité par perçage - Google Patents

Système de mesure pour détecter la position spatiale d'une goupille de sécurité et procédé d'extraction d'une goupille de sécurité par perçage

Info

Publication number
EP3685115A1
EP3685115A1 EP18793594.5A EP18793594A EP3685115A1 EP 3685115 A1 EP3685115 A1 EP 3685115A1 EP 18793594 A EP18793594 A EP 18793594A EP 3685115 A1 EP3685115 A1 EP 3685115A1
Authority
EP
European Patent Office
Prior art keywords
measuring system
measuring
spatial position
pin
spatial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18793594.5A
Other languages
German (de)
English (en)
Inventor
Marat Visajtaev
Stefan Sellmann
Felix Vogt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Energy Global GmbH and Co KG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP3685115A1 publication Critical patent/EP3685115A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G01B5/008—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
    • G01B5/012—Contact-making feeler heads therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
    • B23Q17/2233—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece
    • B23Q17/2275—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece of a tool-axis relative to a workpiece-axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/005—Repairing methods or devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3053—Fixing blades to rotors; Blade roots ; Blade spacers by means of pins
    • 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
    • G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes

Definitions

  • the invention relates to a measuring system for detecting the spatial position of a spatially provided at its front-side free ends, each with a centering recess straight
  • the invention relates to a method for boring a locking pin using such a measuring system.
  • the blades are secured to the rotor with locking pins against radially acting forces.
  • the locking pins To disassemble the blades, for example, to replace worn blades with new or repaired rotor blades, the locking pins must be drilled out. It is desirable to make the boring process automated and as accurate as possible. On the one hand, the boring process itself can be accelerated in this way.
  • the locking pins which are used for the reassembly of the new or repaired blades show the smallest possible diameter. In principle, the use of optical measuring systems is conceivable for automated detection of the positions of the locking pins to be bored out. However, these can not reliably determine the exact orientation of the assembled
  • the present invention provides a measuring system of the type mentioned, comprising a base body, which can be recorded on a measuring system recording on a CNC processing machine, at least one a probe having test specimen which is mounted in three axes along corresponding guides floatingly mounted on the base body and held by reset elements in a starting position, at least three probes, which detect the deflections of the specimen from the Ninposi tion relative to the base body in the three axes, and an evaluation unit which is designed such that it calculates the spatial position of the measuring tip based on the data recorded by the measuring probes and, based on two mutually associated spatial positions of the measuring tip, the spatial position of a straight line connecting them to one another.
  • the measuring system according to the invention is part of the effect that it has a simple and inexpensive structure.
  • it can be made comparatively small, so that it can be a radial guide in existing rotor configurations between adjacent wheel discs in common rotor designs, so that there positioned backup pins are easily accessible to the measuring system.
  • the spatial position of a securing pin can be detected very precisely with the measuring system according to the invention, so that based on this an exact drilling can take place.
  • the measuring system recording is formed by a chuck, in particular by a hydraulic expansion chuck, so that an exact recording of the measuring system in almost every commercially available CNC processing machine is possible, which comes when drilling out of safety pins used.
  • the test specimen has two measuring tips which point in opposite directions and are aligned with one another.
  • One of the like structure of the specimen is to the effect that measurements can be performed on two sides of the specimen, whereby the handling of the measuring system is greatly simplified and retooling accounts.
  • the test body and the evaluation unit are surrounded by a protective cover, from which the measuring tip protrudes or project the measuring tips. In this way, an accidental damage to the measuring system is counteracted.
  • the present invention provides for solving the initially mentioned object, a method for drilling a straight at its front free ends, each with a Zentrie provided straight recess securing pin, in particular special such a locking pin that secures a showcase fel on a runner, using a Messsys A system according to any one of the preceding claims, comprising the steps of: a) mounting the measuring system on a CNC machining machine using the measuring system receiver; b) He summarize the spatial position of at least one locking pin by the probe tip is positioned in the two centering recesses of the locking pin (or one of the measuring tips in the two Zentri mecanicsveriana the locking pin is positioned if two measuring tips are present), while the respective spatial positions the measuring tip are detected and a these spatial Posi functions of the measuring tip interconnecting lines is calculated net, which corresponds to the spatial position of the locking pin; c) disassembly of the measuring system and installation of a drilling tool on the same CNC processing machine; and d) drilling out the securing pin
  • step b) the spatial positions of all the locking pins to be bored out are preferably detected, whereupon in step d) all the centering pins to be bored are drilled out. In this way, the time required to drill out all of the security pins is significantly optimized.
  • Figure 1 is a perspective view of a measuring system according to an embodiment of the present inven tion, wherein a protective cover for illustrative purposes is not shown;
  • Figure 2 is another, partially cut perspektivi cal view of the measuring system
  • Figure 3 is a perspective view of the measuring system, wherein an evaluation, probes and cabling are not shown for the purpose of illustration;
  • FIG. 4 shows a further partially sectioned perspective view of the measuring system according to FIG. 3;
  • Figure 5 is a perspective view of the measuring system with protective cover and wiring
  • Figure 6 is a partial perspective view of a runner
  • FIG 7 is an enlarged view of the reference numeral VII in Figure 6 marked section;
  • Figure 8 is a perspective view of the measuring system currency end detection of the spatial position of a hedging pin of the rotor.
  • Figure 9 is a perspective view of a drilling tool during the drilling of the locking pin.
  • Figures 1 to 5 show a measuring system 1 with a base body 2, which is formed via a measuring system recording 3, which in the present case is designed as Hydrodehnspannfutter, on a corresonant tool holder of a CNC processing machine can be included.
  • the measuring system 1 further comprises a test specimen 4, which in three axes along corresponding, each perpendicular to each other guides 5, 6 and
  • the extending in the Y direction first guide 5 connects the base body 2 with a mounting bracket 9, wherein the relative movement between the base body 2 and the mounting bracket 9 is limited to a few millimeters.
  • two spaced apart in the Y-direction arranged stops 10 are provided on the mounting bracket 9 in the present case, in each case in the Y-direction he stretched return element 8 is fixed, with the pointing to each other free ends of the return elements 8 between tween a from Base body 2 in the X direction projecting projection 11 record.
  • the extending in the X direction second guide 6 connects the mounting bracket 9 with a specimen holder, wherein the movement in the X direction is limited to a few millimeters.
  • the Be fastening console 9 in the X direction spaced from each other two stops 10 are provided, which are in the X direction he stretching return elements 8 are fixed, the zueinan the facing free ends between them in the Y direction of the educalogiehalter 12 above Vorsprung 14 aufneh men.
  • the extending in the Z direction third guide 7 connects the educable 12 with the test specimen 4, wherein the relative movement in the Z direction between these two com ponents is also limited to a few millimeters.
  • the measuring system 1 For detecting the relative movements of the test piece 4 relative to the base body 2 in the X, Y and Z directions along the associated guides 5, 6 and 7, the measuring system 1 comprises three probes 17, 18, 19, wherein the first Probe 17 movements in the X direction, the second probe 18 movements in the Y direction and the third probe 19 movements in the Z direction detected.
  • the first and second probes 17 and 18 each extend in the direction of the corresponding X or Y axis, so that they absorb the movement directly.
  • the third probe 19 extends in the Y-axis and thus perpendicular to the actual measuring direction. It is placed on a defined inclined surface, so that based on the adjustment of the probe 19 in the Y direction, the adjustment in the Z direction can be calculated.
  • This arrangement of the third probe 19 was ge selected to keep the dimensions of the measuring system 1 in the Z direction as small as possible, so that the measuring system 1 to He Constitution of the spatial position of locking pins 26 between adjacent wheel discs of a rotor 27 can be introduced , as explained in more detail below with reference to Figures 6 and 7.
  • the test specimen 4 is provided with two measuring tips 20 and 21, which are arranged in alignment with one another in the Z direction.
  • an evaluation unit 22 is positioned on the one hand with the measuring buttons 17, 18 and 19 via corresponding data cable 23 a related party and on the other hand via data cable 24 with a Ma machine control a CNC processing machine can be connected.
  • a part of the base body 2, the mounting bracket 9, the test specimen holder 12 and the test specimen 4 are surrounded by a protective cover 25 from which only the measuring tips 20 and 21 of the specimen 4 protrude outward.
  • the measuring system 1 is used to detect the spatial position of securing pins 26, which secure blades 28 attached to a rotor 27 of a steam turbine against radially acting forces, as shown in FIG.
  • the locking pins 26, which are each formed straight with a constant circular cross-section, are each provided at their front-side free ends with a Zentri mecanicsverianaung 29, as it is in particular can be clearly seen in Figure 7.
  • the exact detection of the spatial position of such locking pins 26 is to the effect of meaning that they allow an equally accurate drilling of the locking pins 26 when an expansion of the running blades 28 is desired.
  • the measuring system 1 is mounted in a first step on a CNC processing machine, which is also used to carry out the drilling, using the measuring system recording 3 and connected via the data cable 25 to the machine control. Subsequently, the system can be zeroed by one of the measuring points 21RIC a certain point in space is approached.
  • a first securing pin For detecting the spatial position of the securing pins 26, a first securing pin, as shown in FIG. 8, is approached in such a way that one of the measuring tips 20, 21 of the measuring system dives into one of the two centering depressions.
  • the measuring tip 20, 21 is automatically aligned during the dive due to their floating storage.
  • the movements made during this alignment along the guides 5, 6 and 7 in the X, Y and Z directions are thereby detected by the associated measuring probes 17, 18 and 19, wherein the detected data are transmitted to the evaluation unit 22, the These data and the current position data of the measuring system, which provides the machine control, determines the spatial position of the one free end of the locking pin 26.
  • the measuring system is dismantled and, as shown in FIG. 9, a drilling tool 30 for drilling out the securing pins 26 is mounted on the same CNC machining machine. Again, the system can be zeroed by the drill point with the predetermined point is approached in space.
  • the drilling out of the safety pins takes place based on the previously calculated spatial positions.

Landscapes

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

Abstract

L'invention concerne un système de mesure (1) servant à détecter la position spatiale d'une goupille de sécurité droite (26) respectivement pourvue sur ses extrémités libres frontales d'un évidement de centrage (29), en particulier d'une goupille de sécurité (26) qui fixe une aube mobile (28) sur un rotor (27). La présente invention concerne en outre un procédé d'extraction de telles goupilles de sécurité (26) par perçage au moyen d'un tel système de mesure (1).
EP18793594.5A 2017-11-22 2018-10-15 Système de mesure pour détecter la position spatiale d'une goupille de sécurité et procédé d'extraction d'une goupille de sécurité par perçage Withdrawn EP3685115A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017220833.3A DE102017220833A1 (de) 2017-11-22 2017-11-22 Messsystem zur Erfassung der räumlichen Lage eines Sicherungsstiftes und Verfahren zum Ausbohren eines Sicherungsstiftes
PCT/EP2018/078010 WO2019101439A1 (fr) 2017-11-22 2018-10-15 Système de mesure pour détecter la position spatiale d'une goupille de sécurité et procédé d'extraction d'une goupille de sécurité par perçage

Publications (1)

Publication Number Publication Date
EP3685115A1 true EP3685115A1 (fr) 2020-07-29

Family

ID=64023992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18793594.5A Withdrawn EP3685115A1 (fr) 2017-11-22 2018-10-15 Système de mesure pour détecter la position spatiale d'une goupille de sécurité et procédé d'extraction d'une goupille de sécurité par perçage

Country Status (3)

Country Link
EP (1) EP3685115A1 (fr)
DE (1) DE102017220833A1 (fr)
WO (1) WO2019101439A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110253042B (zh) * 2019-06-06 2020-05-29 唐山永盛五金有限责任公司 一种钢板自动钻孔设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5954810U (ja) * 1982-10-01 1984-04-10 トヨタ自動車株式会社 寸法測定装置
DE3417991A1 (de) * 1984-05-15 1985-11-21 Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf Tastkopf einer messmaschine
GB2208934B (en) * 1987-08-24 1991-05-15 Mitutoyo Corp Surface contour measuring tracer
GB8903256D0 (en) * 1989-02-14 1989-04-05 Impel Engineering Electronic centre finder
DE4327250C5 (de) * 1992-09-25 2008-11-20 Carl Zeiss Industrielle Messtechnik Gmbh Verfahren zur Koordinatenmessung an Werkstücken
DE102007016056B4 (de) * 2007-04-03 2011-08-25 Sauer GmbH LASERTEC, 87437 Verfahren und Vorrichtung zur Werkstückeinmessung und Werkstückbearbeitung
DE102010002268B4 (de) * 2010-02-24 2013-10-17 Prof. Dr.-Ing., Siegfried Schmalzried Bearbeitungsstation zur Bearbeitung von Rotorblättern für Windkraftanlagen
US20120269592A1 (en) * 2011-04-19 2012-10-25 James Bradford Holmes System and method for modifying a rotor

Also Published As

Publication number Publication date
DE102017220833A1 (de) 2019-05-23
WO2019101439A1 (fr) 2019-05-31

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