DE4300627A1 - Clamping complex workpiece, e.g. exhaust manifold for machining - Google Patents
Clamping complex workpiece, e.g. exhaust manifold for machiningInfo
- Publication number
- DE4300627A1 DE4300627A1 DE19934300627 DE4300627A DE4300627A1 DE 4300627 A1 DE4300627 A1 DE 4300627A1 DE 19934300627 DE19934300627 DE 19934300627 DE 4300627 A DE4300627 A DE 4300627A DE 4300627 A1 DE4300627 A1 DE 4300627A1
- Authority
- DE
- Germany
- Prior art keywords
- workpiece
- clamping
- exhaust manifold
- machining
- molding material
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Spannen eines Guß- oder Schmiedestückes mit komplizierter räumlicher Kontur, beispielsweise eines Auspuffkrümmers, zur me chanischen Bearbeitung.The invention relates to a method for tensioning a Cast or forged piece with complicated spatial Contour, for example an exhaust manifold, to me chan editing.
Die mechanische Bearbeitun von Guß- und Schmiedestüc ken, wie z. B. das Fräsen und Bohren mit NC - Maschinen, ist trotz Verwendung von Universalspannmitteln, Bau kasten- und Spezialvorrichtungen kompliziert und aufwen dig. Derzeitig sind auch keine technischen Lösungen bekannt, die ein einfaches und kostengünstiges Spannen dieser Werkstücke für die Einzelfertigung ermöglichen. Bekannt ist lediglich durch DE-OS 30 49 359 ein Spann verfahren für Werkstücke, bei welchem das Werkstück ganz oder teilweise in einem thermisch erweichbaren speziellen Verbundwerkstoff eingebettet wird, der nach seiner Abkühlung auf Umgebungstemperaturen fest ist und somit die beim Bearbeiten des Werkstückes auftretenden Kräfte übertragen kann und anderseits beim Erstarrungs vorgang das Werkstück nicht oder nur unwesentlich ver formt. Der Temperaturausdehnungskoeffizient des Ver bundwerkstoffes soll durch Auswahl seiner Komponenten dem des jeweiligen Werkstückes anpaßbar sein. Erreicht wird dies beispielsweise durch die Verwendung eines Me talles, einer ferromagnetischen Komponente, eines niedrigschmelzenden Metalles und eines Wachses. Da der Verbundwerkstoff elektrisch leitfähig ist, kann er in duktiv erwärmt werden. Das Spannen des Werkstückes er folgt in der Weise, in dem das Werkstück oder Teile des Werkstückes in eine oder mehrere Mulden einer Palette gelegt werden, wobei der jeweilige Verbundwerkstoff schon in den Mulden ist. Nach dem Abkühlen des Verbund werkstoffes auf Umgebungstemperaturen soll das Werk stück gespannt sein. Das Spannen von Werkstücken mit komplizierten räumlichen Konturen ist schwierig, da zu sätzlich Hilfsmittel zur Lagesicherung des Werkstückes notwendig sind, um somit eine mechanische Bearbeitung an bestimmten Stellen des Werkstückes zu ermöglichen. Die Nachteile des Spannverfahrens sind weiterhin in der Verwendung eines speziellen, gesondert herzustellenden Verbundwerkstoffes und in seiner induktiven Erwärmung zu sehen.The mechanical processing of castings and forgings ken, such as B. milling and drilling with NC machines, is despite the use of universal clamping devices, construction box and special devices complicated and expensive dig. There are currently no technical solutions known, the simple and inexpensive clamping enable these workpieces for one-off production. Only one tension is known from DE-OS 30 49 359 process for workpieces in which the workpiece fully or partially in a thermally softenable special composite material is embedded, which according to its cooling to ambient temperatures is solid and thus those that occur when machining the workpiece Can transfer forces and on the other hand during solidification operation does not ver or only insignificantly ver forms. The coefficient of thermal expansion of the ver bundwerkstoffes should be by selecting its components be adaptable to that of the respective workpiece. Reached this is done, for example, by using a me talles, a ferromagnetic component, one low melting metal and a wax. Since the Composite material is electrically conductive, it can in be heated ductively. Clamping the workpiece follows in the manner in which the workpiece or parts of the Workpiece in one or more troughs of a pallet be placed, the respective composite material is already in the hollows. After the composite has cooled The material should be at ambient temperatures be excited. Clamping workpieces with complicated spatial contours is difficult because of that additional tools to secure the position of the workpiece are necessary for mechanical processing to enable at certain points on the workpiece. The disadvantages of the tensioning process are still in the Use of a special, to be manufactured separately Composite and in its inductive heating to see.
Daher besteht die Aufgabe der Erfindung in der Entwick lung eines Verfahrens zum Spannen eines Guß- oder Schmiedestückes mit komplizierter räumlicher Kontur zur mechanischen Bearbeitung, welches einfach und mit ge ringem Aufwand zu realisieren ist und ohne zusätzliche Hilfsmittel das Werkstück in der für die Bearbeitung notwendigen Lage sicher hält.Therefore, the object of the invention is to develop development of a method for clamping a casting or Forgings with a complicated spatial contour for mechanical processing, which is simple and with ge can be realized with little effort and without additional Aids the workpiece in the for machining necessary location holds securely.
Erfindungsgemäß wird dies dadurch erreicht, daß das zu bearbeitende Werkstück und ein oder mehrere Aufnahmeelemente für Werkstückspan ner in einen in eine Form gegossenen aushärtbaren Form stoff lagebestimmt gedrückt werden, das Werkstück nach dem Aushärten des Formstoffes gespannt, mechanisch be arbeitet und danach der Form entnommen wird. Kennzeich nend ist ebenfalls für das Verfahren, daß der Formstoff ein gießbares, reaktionsharzgebundenes Material ist. Vorteilhafterweise können Werkstücke mit komplizierten räumlichen Konturen mit geringem Aufwand mechanisch be arbeitet werden, da das Spannverfahren ein einfaches Spannen derartiger Werkstücke ermöglicht und der ver wendete Formstoff billig ist. Das gespannte und zu be arbeitende Werkstück hat durch die partielle Formstoff umhüllung eine gute Lagesicherung. Dadurch sind auch gute Zerspanungsbedingungen gegeben. Das erfindungsge mäße Spannverfahren ist wirtschaftlich im Musterbau und bei der Einzelfertigung von Werkstücken anwendbar. Weitere vorteilhafte Anwendungsmöglichkeiten werden bei der Realisierung von Fügeprozessen und Montagearbeiten gesehen.According to the invention this is thereby achieved that the workpiece to be machined and one or more receiving elements for workpiece chips ner in a curable mold cast in a mold position, the workpiece is pressed the hardening of the molding material, mechanically works and is then removed from the form. Indicator nend is also for the process that the molding material is a castable, reactive resin bonded material. Advantageously, workpieces with complicated mechanically be spatial contours with little effort work because the clamping process is a simple one Allows clamping of such workpieces and the ver applied molding material is cheap. The tense and be working workpiece has through the partial molding material wrapping a good position securing. This also means good machining conditions. The fiction moderate clamping process is economical in prototyping and applicable for the individual production of workpieces. Other advantageous applications are at the implementation of joining processes and assembly work seen.
Die Erfindung soll am Beispiel des Spannens eines Aus puffkrümmers mit fünf zu bearbeitenden Flanschen näher erläutert werden.The invention is based on the example of clamping an off puff elbow with five flanges to be machined closer are explained.
Hierzu ist es notwendig, daß eine der Größe des Auspuff krümmers entsprechende Form mit einem reaktionsharzge bundenen Material, beispielsweise MAPULIT, gefüllt wird. Danach kann der Auspuffkrümmer lagebestimmt in den Form stoff eingedrückt werden. Dies bedeutet, daß die Flanschflächen etwa vertikal (± 1 Grad) ausgerichtet sind. Gleichzeitig werden drei Gewindestifte für Spann eisen in den Formstoff an den Stellen eingedrückt die die Spannkräfte zur Wirkung bringen. Der Formstoff här tet in kurzer Zelt aus, so daß die Spanneisen montiert und das Werkstück gespannt werden kann. Nach dem Aus richten und Spannen der Form auf dem Arbeitstisch einer NC-Maschine werden die fünf Flansche des Auspuffkrüm mers plangefräst, die Bohrungen für die Befestigungs schrauben hergestellt und der bearbeitete Auspuffkrüm mer nach dem Lösen der Spanneisen der Form entnommen.For this it is necessary that one of the size of the exhaust Krümmers corresponding shape with a reactive resin bound material, such as MAPULIT, is filled. After that, the exhaust manifold can be positioned in the shape be pressed in. This means that the Flange surfaces aligned approximately vertically (± 1 degree) are. At the same time, three setscrews for clamping iron pressed into the molding material at the points bring the tension forces to bear. The molding material hard tet in a short tent, so that the tensioning iron is mounted and the workpiece can be clamped. After the end straighten and clamp the shape on the work table one NC machine will be the five flanges of the exhaust manifold mers face milled, the holes for the attachment screws and the machined exhaust manifold removed from the mold after loosening the clamping arms.
Claims (2)
- - das zu bearbeitende Werkstück und ein oder mehrere Aufnahmeelemente für Werkstückspanner, wie beispiels weise Gewindestifte, in einen in eine Form gegossenen aushärtbaren Formstoff lagebestimmt gedrückt werden,
- - das Werkstück nach dem Aushärten des Formstoffes ge spannt und mechanisch bearbeitet wird, sowie ab schließend
- - das bearbeitete Werkstück der Form entnommen wird.
- the workpiece to be machined and one or more receiving elements for workpiece clamps, such as set screws, for example, are pressed into a position-hardened molding material cast in a mold,
- - After the hardening of the molding material, the workpiece is clamped and mechanically processed, and finally
- - The machined workpiece is removed from the mold.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19934300627 DE4300627C2 (en) | 1993-01-13 | 1993-01-13 | Process for clamping a casting or forging |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19934300627 DE4300627C2 (en) | 1993-01-13 | 1993-01-13 | Process for clamping a casting or forging |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4300627A1 true DE4300627A1 (en) | 1994-07-14 |
DE4300627C2 DE4300627C2 (en) | 1995-11-16 |
Family
ID=6478061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19934300627 Expired - Fee Related DE4300627C2 (en) | 1993-01-13 | 1993-01-13 | Process for clamping a casting or forging |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4300627C2 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4339069A1 (en) * | 1993-11-16 | 1995-05-18 | Innovative Fertigungstechnolog | Chuck for massive workpieces, e.g. mining machine wedge shoe |
US6993839B2 (en) * | 2002-07-15 | 2006-02-07 | Omni Integrated Technologies, Inc. | Method for machining a stainless steel exhaust manifold for a multi-cylinder combustion engine |
WO2007082504A1 (en) * | 2006-01-19 | 2007-07-26 | Mtu Aero Engines Gmbh | Method for the milling machining of components |
CN103252660A (en) * | 2013-05-19 | 2013-08-21 | 河南省西峡汽车水泵股份有限公司 | Exhaust manifold pressurization flange connecting hole locating device and hole drilling locating method |
CN106217072A (en) * | 2016-08-25 | 2016-12-14 | 河南飞龙(芜湖)汽车零部件有限公司 | A kind of big fixture for processing of exhaust manifold |
CN106271731A (en) * | 2016-08-25 | 2017-01-04 | 河南飞龙(芜湖)汽车零部件有限公司 | One is used for processing exhaust manifold side boss fixture |
CN106271760A (en) * | 2016-08-27 | 2017-01-04 | 河南飞龙(芜湖)汽车零部件有限公司 | A kind of exhaust manifold little flange fixture for processing after kerf |
CN106425538A (en) * | 2016-08-25 | 2017-02-22 | 河南飞龙(芜湖)汽车零部件有限公司 | Small flange clamp for machining exhaust manifold |
CN105127476B (en) * | 2015-09-24 | 2017-05-17 | 北京科诚中业汽车零部件制造有限公司 | Vehicle exhaust manifold small head end drilling device |
CN110238686A (en) * | 2019-06-21 | 2019-09-17 | 钟建斌 | Turnover fixture is used in a kind of processing of inlet manifold |
CN110405659A (en) * | 2019-07-18 | 2019-11-05 | 张�浩 | A kind of frock clamp for the processing of intake manifold flange face |
DE102019124146A1 (en) * | 2019-09-09 | 2021-03-11 | Technische Universität Darmstadt | Process for reworking components |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004027605B4 (en) * | 2004-06-05 | 2006-07-06 | Innovative Fertigungstechnologie Gmbh (Ift) | Tensioning device for machine tools comprises a body consisting of several hybrid wall parts adhered at the connecting joints |
DE102008051741B4 (en) * | 2008-10-15 | 2017-05-04 | Festo Ag & Co. Kg | Clamping jaw, clamping device and clamping method by phase transition of a latent heat storage material |
CN104440180A (en) * | 2014-11-28 | 2015-03-25 | 重庆三贵机械制造有限公司 | Clamp for machining of engine intake manifold |
CN105108531A (en) * | 2015-09-24 | 2015-12-02 | 重庆民发汽车配件有限责任公司 | Exhaust manifold sensor installation hole chamfering tool |
CN106271732A (en) * | 2016-08-25 | 2017-01-04 | 河南飞龙(芜湖)汽车零部件有限公司 | A kind of exhaust manifold little flange face fixture for processing |
CN106271709A (en) * | 2016-08-25 | 2017-01-04 | 河南飞龙(芜湖)汽车零部件有限公司 | One is used for processing big fixture of exhaust manifold |
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DE1602466B (en) * | Hexcel Corp., Dublin, Calif. (V.StA.) | Holding device for a honeycomb-like structure | ||
DE3049359A1 (en) * | 1980-12-29 | 1982-07-29 | Artur Prof. Dipl.-Ing. 7923 Königsbronn Jung | Workpiece holder using low melting point composition - uses modular block with compartments for composition containing metallic inclusions for heating |
GB2186510A (en) * | 1986-02-13 | 1987-08-19 | United Technologies Corp | A workholder and method for securing a workpiece thereto |
DE3634268A1 (en) * | 1986-10-08 | 1988-04-21 | Hauni Werke Koerber & Co Kg | WORKPIECE CLAMPING DEVICE |
DE4137981A1 (en) * | 1991-11-19 | 1993-05-27 | Magdeburg Werkzeugmasch | Workpiece fixture construction system - involves cementing together block elements cast in desired shapes from resin bonded mineral concrete |
-
1993
- 1993-01-13 DE DE19934300627 patent/DE4300627C2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE1602466B (en) * | Hexcel Corp., Dublin, Calif. (V.StA.) | Holding device for a honeycomb-like structure | ||
DE3049359A1 (en) * | 1980-12-29 | 1982-07-29 | Artur Prof. Dipl.-Ing. 7923 Königsbronn Jung | Workpiece holder using low melting point composition - uses modular block with compartments for composition containing metallic inclusions for heating |
GB2186510A (en) * | 1986-02-13 | 1987-08-19 | United Technologies Corp | A workholder and method for securing a workpiece thereto |
DE3634268A1 (en) * | 1986-10-08 | 1988-04-21 | Hauni Werke Koerber & Co Kg | WORKPIECE CLAMPING DEVICE |
DE4137981A1 (en) * | 1991-11-19 | 1993-05-27 | Magdeburg Werkzeugmasch | Workpiece fixture construction system - involves cementing together block elements cast in desired shapes from resin bonded mineral concrete |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4339069A1 (en) * | 1993-11-16 | 1995-05-18 | Innovative Fertigungstechnolog | Chuck for massive workpieces, e.g. mining machine wedge shoe |
DE19504916A1 (en) * | 1993-11-16 | 1996-08-22 | Innovative Fertigungstechnolog | Fixture arrangement for use with machine tools |
DE19504916C2 (en) * | 1993-11-16 | 2002-08-29 | Innovative Fertigungstechnolog | Attachment jig |
US6993839B2 (en) * | 2002-07-15 | 2006-02-07 | Omni Integrated Technologies, Inc. | Method for machining a stainless steel exhaust manifold for a multi-cylinder combustion engine |
WO2007082504A1 (en) * | 2006-01-19 | 2007-07-26 | Mtu Aero Engines Gmbh | Method for the milling machining of components |
US8635772B2 (en) | 2006-01-19 | 2014-01-28 | Mtu Aero Engines Gmbh | Method of damping vibrations during a machining operation |
CN103252660A (en) * | 2013-05-19 | 2013-08-21 | 河南省西峡汽车水泵股份有限公司 | Exhaust manifold pressurization flange connecting hole locating device and hole drilling locating method |
CN103252660B (en) * | 2013-05-19 | 2016-07-06 | 河南省西峡汽车水泵股份有限公司 | Exhaust manifold supercharging flange connecting hole positioner and drilling and positioning method |
CN105127476B (en) * | 2015-09-24 | 2017-05-17 | 北京科诚中业汽车零部件制造有限公司 | Vehicle exhaust manifold small head end drilling device |
CN106271731A (en) * | 2016-08-25 | 2017-01-04 | 河南飞龙(芜湖)汽车零部件有限公司 | One is used for processing exhaust manifold side boss fixture |
CN106425538A (en) * | 2016-08-25 | 2017-02-22 | 河南飞龙(芜湖)汽车零部件有限公司 | Small flange clamp for machining exhaust manifold |
CN106217072A (en) * | 2016-08-25 | 2016-12-14 | 河南飞龙(芜湖)汽车零部件有限公司 | A kind of big fixture for processing of exhaust manifold |
CN106271760A (en) * | 2016-08-27 | 2017-01-04 | 河南飞龙(芜湖)汽车零部件有限公司 | A kind of exhaust manifold little flange fixture for processing after kerf |
CN110238686A (en) * | 2019-06-21 | 2019-09-17 | 钟建斌 | Turnover fixture is used in a kind of processing of inlet manifold |
CN110238686B (en) * | 2019-06-21 | 2020-06-02 | 浙江博弈科技股份有限公司 | Overturning clamp for machining intake manifold |
CN110405659A (en) * | 2019-07-18 | 2019-11-05 | 张�浩 | A kind of frock clamp for the processing of intake manifold flange face |
CN110405659B (en) * | 2019-07-18 | 2020-12-18 | 张�浩 | A frock clamp for intake manifold flange face processing |
DE102019124146A1 (en) * | 2019-09-09 | 2021-03-11 | Technische Universität Darmstadt | Process for reworking components |
Also Published As
Publication number | Publication date |
---|---|
DE4300627C2 (en) | 1995-11-16 |
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