DE4033945A1 - Method of producing helical coil springs - by cutting deep spiral groove in bar with central axial hole - Google Patents
Method of producing helical coil springs - by cutting deep spiral groove in bar with central axial holeInfo
- Publication number
- DE4033945A1 DE4033945A1 DE19904033945 DE4033945A DE4033945A1 DE 4033945 A1 DE4033945 A1 DE 4033945A1 DE 19904033945 DE19904033945 DE 19904033945 DE 4033945 A DE4033945 A DE 4033945A DE 4033945 A1 DE4033945 A1 DE 4033945A1
- Authority
- DE
- Germany
- Prior art keywords
- springs
- bar
- axial hole
- spring
- helical coil
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 title abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Springs (AREA)
Abstract
Description
Der Gegenstand der Erfindung ist ein Verfahren zur Erzeugung von Schraubenfedern, besonders von Federn mit großer Federrate (Federkonstante), bestimmt durch niedriges Wickelverhältnis, d. h. durch ein niedriges Verhältnis des Teilungsdurchmessers der Feder zum Durchmesser des Drahtes oder Stabes, sowie von Federn mit präziser Federrate. Es können Druckfedern oder Druck-Zugfedern sowie Federn allgemeiner oder spezifischer Bestimmung sein.The object of the invention is a method for producing Coil springs, especially springs with a high spring rate (spring constant), determined by low winding ratio, d. H. by a low ratio of the pitch diameter of the spring to Diameter of the wire or rod, as well as of springs with more precise Spring rate. There can be compression springs or compression springs as well as springs general or specific purpose.
Die Schraubenfedern, einschließlich diejenigen mit hoher Federrate, werden bisher durch Kalt- oder Heißwickeln von Draht oder Stab erzeugt.The coil springs, including those with a high spring rate, have so far been achieved by cold or hot winding of wire or rod generated.
In der Praxis werden Federn mit Wickelverhältnis nicht unter 3 erzeugt. Abmessungen und Eigenschaften dieser Federn sind durch nationale und internationale Normen bestimmt. Die Toleranzen ihrer Abmessungen sowie ihrer Federrate sind sehr hoch.In practice, springs with a winding ratio of less than 3 are produced. Dimensions and properties of these springs are national and international standards. The tolerances of their dimensions as well as their spring rate are very high.
In der Praxis ist es oft nötig, Schraubenfedern mit Wickelverhältnis unter 3, sowie Federn mit präziser Federrate zu erzeugen, was bei jetzigem Erzeugungsverfahren nur schwierig oder überhaupt nicht möglich ist.In practice, it is often necessary to use coil springs with a winding ratio under 3, as well as springs with precise spring rate to produce what difficult or not at all with the current production process is possible.
Das Ziel der Erfindung ist die Beseitigung dieser Schwierigkeiten dank Eliminierung des Wickelns der Federn aus Drähten oder Stäben.The aim of the invention is to eliminate these difficulties thanks to the elimination of the winding of the springs from wires or rods.
Das Wesen der Erfindung ist die Erzeugung der Federn aus einem gewalzten oder gezogenen Rohr oder aus einem Stab mit gebohrtem Loch durch Schneiden in ihm, in beliebiger Weise, eines spiralen Spaltes mit beliebiger Form und Abmessung. Der Spalt kann offen, wie in Fig. 1, 2, 3 und 7, oder geschlossen, wie in Fig. 4, 5, 6 und 8, sein. The essence of the invention is the production of the springs from a rolled or drawn tube or from a rod with a drilled hole by cutting in it, in any way, a spiral gap of any shape and dimension. The gap can be open as in Figures 1, 2, 3 and 7, or closed as in Figures 4, 5, 6 and 8.
Der Spalt kann durch Drehen, Fräsen, Sägen, Meißeln, Schleifen, elektro-erosives Aushöhlen, Ausschmelzen, oder auf eine andere bekannte Weise hergestellt werden. Die Endungen der auf der Fig. 1 und 7 gezeigten Feder können beigelegt (gebeugt) werden. Die präzise Federrate der Feder wird durch das Schleifen in der fertigen Feder - nach ihrer Härtung und Messung der Federrate - der gebliebenen Werkstoffzugabe des Innen- oder Außendurchmessers gewonnen.The gap can be produced by turning, milling, sawing, chiseling, grinding, electro-erosive hollowing out, melting out, or in another known manner. The endings of the spring shown in FIGS. 1 and 7 can be enclosed (bent). The precise spring rate of the spring is obtained by grinding in the finished spring - after hardening and measuring the spring rate - the remaining material addition of the inside or outside diameter.
Ein Vorteil des Verfahrens gemäß der Erfindung ist die Möglichkeit der einfachen Herstellung der Federn mit dem sehr niedrigen Wickelverhältnis, auch unter 3, die dadurch eine hohe Federrate besitzen, sowie auch der Federn mit der präzisen Federrate.An advantage of the method according to the invention is the possibility the simple manufacture of the springs with the very low winding ratio, even under 3, which therefore have a high spring rate, as well as the springs with the precise spring rate.
Die auf diese Weise gewonnenen Maß- und Federratetoleranzen sind bedeutend weniger als die in den Normen angegebene.The dimensional and spring rate tolerances obtained in this way are significantly less than that specified in the standards.
Darüber hinaus können auf diese Weise Federn mit beliebiger Form des Endteiles, u. a. wie in Fig. 2, 3, 5, 6 und 8, erzeugt werden. Dieses Verfahren ermöglicht auch die Erzeugung der Federn mit Zweirichtunggewinden, sowohl mit offenem als auch mit geschlossenem Spalt, wie auf der Fig. 7 und 8, bei denen während Belastung keine gegenseitige Drehung der Stirnfläche der Federn existiert.In addition, springs with any shape of the end part, inter alia as in FIGS. 2, 3, 5, 6 and 8, can be produced in this way. This method also enables the production of bi-directional springs, both open and closed, as in Figures 7 and 8, in which there is no mutual rotation of the end face of the springs during loading.
Zum Beispiel, kann auf diese Weise eine Feder mit geschlossenem Spalt, aus Chrom-Silizium-Stahl, mit Teilungsdurchmesser 39 mm, Querschnitt des Stabes 21×21,4 mm, Steigung 25,4 mm und mit verlängerter Windungsmenge hergestellt werden.For example, a spring can be closed Gap, made of chrome-silicon steel, with a pitch of 39 mm, Cross section of the rod 21 × 21.4 mm, pitch 25.4 mm and with an extended one Amount of turns are produced.
Ihr Wickelverhältnis beträgt ca. 1,8, die Federrate bei einer aktiven Windung ca. 38 kN/mm, die statische Belastung 70 kN.Their winding ratio is approx. 1.8, the spring rate with an active one 38 kN / mm, the static load 70 kN.
Bei der Herstellung der Feder auf einer Universal-Bearbeitungsmaschine gewinnt man die Toleranz aller Abmessungen ca. 0,1 mm und die Toleranz der Federrate bei einer aktiven Windung ca. 1 kN/mm.When manufacturing the spring on a universal processing machine you get the tolerance of all dimensions approx. 0.1 mm and the tolerance of the spring rate with an active winding approx. 1 kN / mm.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904033945 DE4033945A1 (en) | 1990-10-25 | 1990-10-25 | Method of producing helical coil springs - by cutting deep spiral groove in bar with central axial hole |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904033945 DE4033945A1 (en) | 1990-10-25 | 1990-10-25 | Method of producing helical coil springs - by cutting deep spiral groove in bar with central axial hole |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4033945A1 true DE4033945A1 (en) | 1992-05-07 |
Family
ID=6417032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19904033945 Ceased DE4033945A1 (en) | 1990-10-25 | 1990-10-25 | Method of producing helical coil springs - by cutting deep spiral groove in bar with central axial hole |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4033945A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0620367A1 (en) * | 1993-04-13 | 1994-10-19 | Hughes Aircraft Company | Linear compressor including reciprocating piston and machined double-helix piston spring |
DE19750149A1 (en) * | 1997-11-12 | 1999-06-02 | Siemens Ag | Cylindrical spring especially as bias or reaction spring for piezoelectric multilayer actuator in diesel common rail injector |
WO2005028841A1 (en) * | 2003-09-19 | 2005-03-31 | Tiax Llc | Machined spring displacer for stirling cycle machines |
DE102005028484A1 (en) * | 2005-06-20 | 2006-12-21 | Siemens Ag | Cylinder spring, especially for piezo electric multi-layer actuators, is shaped within a hollow cylinder where inserted pins move the spring arms into shape while a cylinder is rotated against a lower holder |
CN103410898A (en) * | 2013-07-18 | 2013-11-27 | 南京航空航天大学 | Hot training device for shape memory alloy spring |
EP2949917A1 (en) | 2014-05-27 | 2015-12-02 | Continental Automotive GmbH | Fuel injector |
EP2351945A4 (en) * | 2008-11-25 | 2018-01-31 | Yamaha Hatsudoki Kabushiki Kaisha | Spring structure |
EP3339676A4 (en) * | 2015-07-16 | 2019-06-26 | Hyung Woo Kim | Spring structure having multiple coil-shaped unit springs and method for manufacturing same |
-
1990
- 1990-10-25 DE DE19904033945 patent/DE4033945A1/en not_active Ceased
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0620367A1 (en) * | 1993-04-13 | 1994-10-19 | Hughes Aircraft Company | Linear compressor including reciprocating piston and machined double-helix piston spring |
JPH0749082A (en) * | 1993-04-13 | 1995-02-21 | Hughes Aircraft Co | Linear compressor including reciprocating piston and machined double spiral piston spring |
US5944302A (en) * | 1993-04-13 | 1999-08-31 | Raytheon Company | Linear compressor including reciprocating piston and machined double-helix piston spring |
DE19750149A1 (en) * | 1997-11-12 | 1999-06-02 | Siemens Ag | Cylindrical spring especially as bias or reaction spring for piezoelectric multilayer actuator in diesel common rail injector |
DE19750149C2 (en) * | 1997-11-12 | 2000-02-17 | Siemens Ag | Cylinder spring and its use |
US7017344B2 (en) | 2003-09-19 | 2006-03-28 | Pellizzari Roberto O | Machine spring displacer for Stirling cycle machines |
WO2005028841A1 (en) * | 2003-09-19 | 2005-03-31 | Tiax Llc | Machined spring displacer for stirling cycle machines |
DE102005028484A1 (en) * | 2005-06-20 | 2006-12-21 | Siemens Ag | Cylinder spring, especially for piezo electric multi-layer actuators, is shaped within a hollow cylinder where inserted pins move the spring arms into shape while a cylinder is rotated against a lower holder |
DE102005028484B4 (en) * | 2005-06-20 | 2007-06-14 | Siemens Ag | Cylinder spring and method and apparatus for producing a cylinder spring |
EP2351945A4 (en) * | 2008-11-25 | 2018-01-31 | Yamaha Hatsudoki Kabushiki Kaisha | Spring structure |
CN103410898A (en) * | 2013-07-18 | 2013-11-27 | 南京航空航天大学 | Hot training device for shape memory alloy spring |
EP2949917A1 (en) | 2014-05-27 | 2015-12-02 | Continental Automotive GmbH | Fuel injector |
US9903327B2 (en) | 2014-05-27 | 2018-02-27 | Continental Automotive Gmbh | Fuel injector |
EP3339676A4 (en) * | 2015-07-16 | 2019-06-26 | Hyung Woo Kim | Spring structure having multiple coil-shaped unit springs and method for manufacturing same |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8131 | Rejection |