WO1992000823A1 - Teststückmanipulator und zugehöriges zylindrisches teststück mit normfehlern zur einstellung von ultraschall-prüfanlagen - Google Patents
Teststückmanipulator und zugehöriges zylindrisches teststück mit normfehlern zur einstellung von ultraschall-prüfanlagen Download PDFInfo
- Publication number
- WO1992000823A1 WO1992000823A1 PCT/DE1991/000537 DE9100537W WO9200823A1 WO 1992000823 A1 WO1992000823 A1 WO 1992000823A1 DE 9100537 W DE9100537 W DE 9100537W WO 9200823 A1 WO9200823 A1 WO 9200823A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- test piece
- test
- manipulator
- flange
- piece
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
- B23B31/26—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle
- B23B31/261—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle clamping the end of the toolholder shank
- B23B31/266—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle clamping the end of the toolholder shank using a threaded spindle
Definitions
- Test piece manipulator and associated cylindrical test piece with standard errors for setting ultrasonic testing systems
- the invention relates to a test piece manipulator and an associated cylindrical test piece with standard errors for setting ultrasound test systems, the test piece manipulator has a clamping device for an end region of the test piece.
- Test pieces with associated manipulator are setting standards of ultrasonic testing systems for pipes, rods or material with a regular polygon profile. Such ultrasound test systems are referred to below as “whole-body test systems”.
- the test mechanics and electronics of such whole-body test systems are set with the device consisting of a test piece manipulator and test piece.
- the test pieces (calibration standards) are positioned precisely in the whole-body test system.
- test pieces Depending on the test object, test pieces usually have several types of errors. These errors are incorporated in different positions on the Ifinfang and distributed over the length of the test piece. In order to be able to record all such errors (standard errors), the test piece on the one hand must be able to be moved into any position in its longitudinal axis relative to the whole-body test system. On the other hand, it must be rotatable about its longitudinal axis and, if necessary, be able to carry out oscillation movements.
- whole-body test systems here means systems for testing pipes, rods or regular polygon profiles in which the profile to be tested is moved axially.
- a rotor either rotates around the axis of the profile to be tested (test piece), or the test piece itself is rotated. In both cases, helical test tracks are obtained.
- test systems are described, for example, in J. and H. Krautkrämer "Material Testing with Ultrasound", 4th edition, pages 442 to 461.
- the rotor or test head carrier When a whole-body test system is set in practice, the rotor or test head carrier is generally moved from the test position into a service position, this is done horizontally. In this position, the test piece manipulator is used to move a test piece into the rotor or test head carrier.
- Test piece manipulators are currently in use that have a chuck, as is also used in turning and drilling machines.
- the test pieces themselves are tubes or rods, possibly composed of several sections. A division into several sections is necessary if defects are to be introduced into the test pieces from the inside.
- test pieces The setting of a test system with the known test piece manipulator and the associated test pieces requires a relatively long time, the test pieces cannot be inserted and centered into the chuck of the known test piece manipulator by means of an automatic machine, for example a robot, rather manual alignment is necessary for this.
- the known test pieces also have a handle or a projection at their end area which is free in the clamped state, which allows them to be better centered in the chuck.
- the invention is based on the object of specifying a test piece and an associated test piece manipulator which enables automated insertion of a test piece into the manipulator, which creates the prerequisite that the test pieces are removed mechanically from a supply and without human intervention the test piece manipulator can be clamped and inserted into a test device.
- each test piece has a clamping flange which is firmly connected to the test piece, for example by a detachable screw connection or by welding. It has a cone part which is designed as a positive projecting cone, for example a truncated cone, or as a conical recess. This cone part fits with the counter cone part of the test piece manipulator so that the test piece can first be roughly aligned in the receiving flange and then, by tightening the tensioning device, which brings the two cone parts into a precise fit, the test piece is precisely centered becomes. In this way it is possible, without manual intervention, to clamp a test piece into the test piece manipulator so precisely that the setting of a whole-body test system can be carried out.
- the counter-cone part of the test piece manipulator is arranged to be movable in the axial direction, for example elastically or adjustable by means of an axially operating lifting device.
- the test piece only has to be roughly fitted into the clamping flange.
- the necessary central alignment is achieved by moving the counter-cone part and actuating the clamping device.
- Spannvor ⁇ direction be formed as an axial spindle that is axially open at the end portion of the clamping flange, where the counter-cone having part or a thread.
- the Jacobko ⁇ nusteil is driven in or on the conical part of the only roughly aligned ⁇ test piece by ancestors of the spindle, thereby centering is achieved.
- a groove is provided on the flange of the test piece and the receiving flange of the test piece manipulator has a fork-shaped, radially accessible receptacle for this groove, which engages around the test piece with considerable play when the test piece flange is inserted laterally and in this position holds.
- the test piece is centered by subsequent advancement of the counter-cone part, which is increasingly pressed into the cone part of the test piece.
- the fork-shaped receptacle is an abutment and also serves for precise axial positioning, " since a wall of the groove acts as a stop shoulder and a surface of the fork-shaped receptacle acts as a stop.
- FIG. 1 is a plan view of a test piece manipulator and a test piece designed as a tube, the latter being a sectional view,
- FIG. 2 shows a representation corresponding to FIG. 1 for a different design of a flange of the test piece and a clamping flange of the test piece manipulator
- Fig. 3 is a sectional view through a flange and an adjacent
- the test piece manipulator 20 shown in FIGS. 1 and 2 has an essentially tubular housing 22 which is surrounded by two axially offset roller bearing blocks 24 which rotate by one Allow axis of rotation 26.
- This rotary movement causes a geared motor 28, it rotates the manipulator at a low number of revolutions per minute, for example one to two idle revolutions per minute, or it oscillates.
- FIGS. 1 and 2 also show a cylindrical test piece 30 to the left of the manipulator 20.
- the test piece 30 has at one end region a flange 32 which is inserted axially into the tube end of the test piece 30 and runs coaxially with the actual test piece and at its axial end region a conical part 34, which is formed in FIG. 1 as a truncated cone-shaped recess, in FIG. 2 as a positive truncated cone. 1, a groove 36 is also provided on the flange 32.
- the flange 32 is screwed to the actual cylindrical test piece, for this purpose a central rod with end threads is provided. It engages in an internal thread of the flange 32 (at the right end) and is screwed at the left end after reaching through a perforated disk.
- the test piece manipulator 20 has a clamping flange 38 at its left end.
- it has a fork-shaped receptacle 40 which, viewed axially, is U-shaped. It is adapted to the groove 36 with good play. On the one hand, it serves to temporarily hold the test piece 30 and, on the other hand, to hold it axially.
- test piece 30 When a test piece 30 is mechanically removed from a supply and transported to the test piece manipulator 20, it is first suspended there in such a way that the fork-shaped receptacle 40 engages in the groove 36. In this state, the test piece 30 is initially held, but its axis is not yet coaxial with the axis of rotation 26 of the test piece manipulator 20, but there may be a considerable angle difference, which may be 10 ⁇ and more.
- a rod 54 is mounted axially displaceably in the housing 22 of the test piece manipulator 20, and a compressed air drive 44 is assigned to it on the right side of the housing 22.
- the rod 54 has a frustoconical counter-cone part 46, in which In the position shown in FIG. 1, this is completely withdrawn so as not to impede the described introduction of the test piece 30 into the clamping flange 38. If the counter-cone part 46 is now moved to the left by the compressed air drive 44, it engages in the cone part 34 and causes increasing centering. The centering is complete when the cone parts 34, 46 are fully seated, so in this state the axes 26, 42 are on the same line.
- An inner surface 48 of the receptacle 40 acts as a stop, a shoulder 50 of the flange 32 abuts against it. In this way, the axial positioning between test piece 30 and test piece manipulator 20 is achieved.
- test piece 30 has a positive cone part 34, and accordingly the clamping flange 38 has a truncated cone-shaped recess as a counter cone part 46 has a thread at its free end. A corresponding internal thread is provided centrally in the flange 32.
- the counter-cone part 46 is arranged axially displaceably in the test piece manipulator 20, it is pressed elastically outwards by a spring 52, which is designed as a screw pressure spring.
- the counter cone part 46 has a rear stop surface, to which a correspondingly designed stop surface on the housing 22 is assigned. In the compressed state, the spring 52 is accommodated in a groove which is provided in a stop surface, and therefore does not hinder the stop surfaces from lying against one another.
- the counter-cone part 46 initially springs axially inward when the test piece 30 is inserted axially.
- the threaded rod 54 is rotated by a motor 56.
- the threaded parts of the rod 54 or the flange 32 have sufficient play or can be deflected sideways so that the threaded part of the rod 54 can engage in the internal thread of the flange 32.
- the conical part 34 of the flange 32 and the counter-cone part 46 are assigned in a precise fit, the counter-conical part 46 with its stop surface pressed against the stop surface of the housing 22. In this state, the axes 26, 42 are aligned on a line.
- the engaging cone piece for example the positive cone part 34 in FIG. B. to be provided with a heating device and to be formed from a material which has greater thermal expansion than the corresponding other conical part, e.g. B. 46.
- the flange 32 of the test piece 30 always has the same outer contour as the actual test piece. This is very beneficial, but need not be so. Rather, the flange 32 may be significantly larger in outer diameter than the actual test piece, or there may be inverse conditions.
- four different flange types are provided, for example with an outer diameter of 20, 40, 100 and 140 mm.
- Corresponding clamping flanges 38 are assigned to them, which are therefore interchangeable, FIG. 1 shows an interchangeable clamping flange 38.
- FIG. 3 an embodiment for a larger flange type, here outer diameter 140 mm, is shown.
- the cone angle of the cone parts 34, 46 is preferably between 30 and 45 ".
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/961,912 US5454263A (en) | 1990-07-03 | 1991-06-29 | Test piece manipulator and corresponding cylindrical test piece with standard defects for setting ultrasonic test equipment |
EP91911879A EP0678064A1 (de) | 1990-07-03 | 1991-06-29 | Teststückmanipulator und zugehöriges zylindrisches teststück mit normfehlern zur einstellung von ultraschall-prüfanlagen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4021177.0 | 1990-07-03 | ||
DE4021177A DE4021177A1 (de) | 1990-07-03 | 1990-07-03 | Teststueckmanipulator und zugehoeriges zylindrisches teststueck mit normfehlern zur einstellung von ultraschall-pruefanlagen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992000823A1 true WO1992000823A1 (de) | 1992-01-23 |
Family
ID=6409575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1991/000537 WO1992000823A1 (de) | 1990-07-03 | 1991-06-29 | Teststückmanipulator und zugehöriges zylindrisches teststück mit normfehlern zur einstellung von ultraschall-prüfanlagen |
Country Status (5)
Country | Link |
---|---|
US (1) | US5454263A (de) |
EP (1) | EP0678064A1 (de) |
JP (1) | JPH06501306A (de) |
DE (1) | DE4021177A1 (de) |
WO (1) | WO1992000823A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4134374B2 (ja) * | 1998-04-22 | 2008-08-20 | 澁谷工業株式会社 | シリンジの保持装置 |
US7694583B2 (en) * | 2005-05-05 | 2010-04-13 | Control Gaging, Inc. | Gripper gage assembly |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1182934B (de) * | 1961-12-08 | 1964-12-03 | Scharmann & Co | Einrichtung an Werkzeugmaschinen, insbesondere Fraes- und Bohrmaschinen, zum Spannen und Loesen von Werkzeugen |
US3177742A (en) * | 1960-06-22 | 1965-04-13 | Laval Turbine | Method for positioning a work piece in a machine tool |
DE2554052A1 (de) * | 1975-12-02 | 1977-06-08 | Hermann O Steinke | Kurzwegwechsel-werkzeugbefestigung fuer handhabungsautomatik |
US4643055A (en) * | 1986-05-09 | 1987-02-17 | Ammco Tools, Inc. | Lathe spindle assembly |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4361044A (en) * | 1980-12-09 | 1982-11-30 | The United States Of America As Represented By The United States Department Of Energy | Scanning ultrasonic probe |
US4660419A (en) * | 1983-10-03 | 1987-04-28 | Trw Inc. | Reference standard for calibration of ultrasonic arrays |
SU1280534A1 (ru) * | 1985-08-06 | 1986-12-30 | Всесоюзный Теплотехнический Научно-Исследовательский Институт Им.Ф.Э.Дзержинского | Образец дл эталонировани ультразвуковых преобразователей |
US5159838A (en) * | 1989-07-27 | 1992-11-03 | Panametrics, Inc. | Marginally dispersive ultrasonic waveguides |
-
1990
- 1990-07-03 DE DE4021177A patent/DE4021177A1/de not_active Withdrawn
-
1991
- 1991-06-29 US US07/961,912 patent/US5454263A/en not_active Expired - Fee Related
- 1991-06-29 JP JP3511035A patent/JPH06501306A/ja active Pending
- 1991-06-29 EP EP91911879A patent/EP0678064A1/de not_active Ceased
- 1991-06-29 WO PCT/DE1991/000537 patent/WO1992000823A1/de not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3177742A (en) * | 1960-06-22 | 1965-04-13 | Laval Turbine | Method for positioning a work piece in a machine tool |
DE1182934B (de) * | 1961-12-08 | 1964-12-03 | Scharmann & Co | Einrichtung an Werkzeugmaschinen, insbesondere Fraes- und Bohrmaschinen, zum Spannen und Loesen von Werkzeugen |
DE2554052A1 (de) * | 1975-12-02 | 1977-06-08 | Hermann O Steinke | Kurzwegwechsel-werkzeugbefestigung fuer handhabungsautomatik |
US4643055A (en) * | 1986-05-09 | 1987-02-17 | Ammco Tools, Inc. | Lathe spindle assembly |
Also Published As
Publication number | Publication date |
---|---|
JPH06501306A (ja) | 1994-02-10 |
EP0678064A1 (de) | 1995-10-25 |
US5454263A (en) | 1995-10-03 |
DE4021177A1 (de) | 1992-01-09 |
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