DE102007014305A1 - Cylindrical housing manufacturing process for hydraulic systems involves two stages, one for making external plastic cylinder, and other for making internal one - Google Patents
Cylindrical housing manufacturing process for hydraulic systems involves two stages, one for making external plastic cylinder, and other for making internal one Download PDFInfo
- Publication number
- DE102007014305A1 DE102007014305A1 DE102007014305A DE102007014305A DE102007014305A1 DE 102007014305 A1 DE102007014305 A1 DE 102007014305A1 DE 102007014305 A DE102007014305 A DE 102007014305A DE 102007014305 A DE102007014305 A DE 102007014305A DE 102007014305 A1 DE102007014305 A1 DE 102007014305A1
- Authority
- DE
- Germany
- Prior art keywords
- cylinder
- making
- plastic
- production
- plastic cylinder
- 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- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/021—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps
- B29C39/025—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles by casting in several steps for making multilayered articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
- B29D23/003—Pipe joints, e.g. straight joints
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- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
- F15B2215/30—Constructional details thereof
- F15B2215/305—Constructional details thereof characterised by the use of special materials
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
- F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
- F16D25/083—Actuators therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Die vorliegende Erfindung befasst sich mit der Herstellung von Zylindergehäusen.The The present invention is concerned with the manufacture of cylinder housings.
Solche Zylindergehäuse werden in hydraulischen Systemen verwendet. Ein solches hydraulisches System kann zum Beispiel aus einem Geberzylinder und einem mit dem Geberzylinder über eine Druckmediumsleitung verbundenen Nehmerzylinder bestehen. In dem Geberzylinder ist ein axial verschiebbarer Kolben angeordnet, der den mit Hydraulikflüssigkeit gefüllten Druckraum begrenzt. Wird der Kolben axial verschoben, so verändert sich die Größe des Druckraums und die Hydraulikflüssigkeit wird mit Druck beaufschlagt. Dieser Druck wird über die Druckmediumsleitung an den Nehmerzylinder weitergegeben.Such cylinder housing are used in hydraulic systems. Such a hydraulic System can for example consist of a master cylinder and one with the Master cylinder over a pressure medium line connected slave cylinder exist. In the master cylinder, an axially displaceable piston is arranged, the one with hydraulic fluid filled Pressure chamber limited. If the piston is displaced axially, it changes the size of the pressure chamber and the hydraulic fluid is pressurized. This pressure is transmitted via the pressure medium line passed on to the slave cylinder.
Solche hydraulische Systeme werden im Fahrzeugbereich unter anderem zur Betätigung der Fahrzeugkupplung verwendet. Dabei wird der Nehmerzylinder um die Getriebeeingangswelle befestigt. Diese Befestigung erfordert an der Außenseite des Zylinders geeignete Befestigungsmittel, wie zum Beispiel Nuten oder Befestigungsnasen. Andererseits ist es gewünscht, dass die Innenseite des Zylindergehäuses gleichmäßig ausgebildet ist, so dass unter Anderem eine reibungsarme Bewegung des Kolbens ermöglicht wird. Werden an der Außenseite des Zylindergehäuses über ein Spritzgußverfahren Nuten und/oder Rippen gebildet, die zur Befestigung des Zylinders dienen, so führt dies in der Regel dazu, dass in der Innenseite des Zylinders sich Wellen bilden, die zu Funktionsschwierigkeiten führen aufgrund der Veränderung der Oberfläche und der Abweichung von der Zylindrizität des Zylinders.Such Hydraulic systems are used in the vehicle sector, among others activity the vehicle clutch used. This is the slave cylinder to attached to the transmission input shaft. This attachment requires on the outside the cylinder suitable fasteners, such as grooves or fastening tabs. On the other hand, it is desired that the inside of the cylinder housing evenly formed is, so that, among other things, a low-friction movement of the piston is made possible. Be on the outside of the cylinder housing via a injection molding Grooves and / or ribs formed for attachment of the cylinder serve, so leads This usually causes the inside of the cylinder itself Forming waves that lead to functional problems due to the change the surface and the deviation from the cylindricity of the cylinder.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde ein neues Verfahren zur Herstellung von Zylindergehäusen bereitzustellen.Of the The present invention is based on a new method for the production of cylinder housings provide.
Gelöst wird diese Aufgabe durch ein Verfahren zur Herstellung von Zylindergehäusen mittels mindestens zweier Herstellungsschritte wobei ein Herstellungsschritt das Erzeugen eines äußeren Kunststoffzylinders und ein zweiter Herstellungsschritt das Erzeugen eines inneren Kunststoffzylinders umfasst. Durch die Herstellung des Zylindergehäuses aus Kunststoff kann einerseits ein leichtes und preisgünstiges Zylindergehäuse hergestellt werden, andererseits kann auf eine Metallhülse verzichtet werden, so dass die bekannten Probleme beim Übergang zwischen Metall und Kunststoff vermieden werden können. Auch kann durch die Herstellung des äußeren Zylinders separat von dem inneren Zylinder, der äußere Zylinder so hergestellt werden, dass die Außenseite des Zylinders Befestigungsmittel wie Rippen und Nuten aufweist, jedoch die dadurch hervorgerufenen Wellen an der Innenseite des äußeren Zylinders durch einen inneren Zylinder verdeckt werden. Dadurch können sowohl die äußeren Befestigungsmittel einstückig mit dem Zylinder, als auch eine gute Oberflächeneigenschaft der inneren Lauffläche (die innere Oberfläche des inneren Zylinders) hergestellt werden, ohne dass die Innenfläche weiter nachbearbeitet werden muss.Is solved this object by a method for the production of cylinder housings by means of at least two manufacturing steps wherein a manufacturing step is the generating an outer plastic cylinder and a second manufacturing step, producing an inner plastic cylinder includes. By producing the cylinder housing made of plastic on the one hand a light and inexpensive cylinder housing can be prepared, on the other hand can be dispensed with a metal sleeve so that the known problems in the transition between metal and Plastic can be avoided. Also, by making the outer cylinder separately from the inner cylinder, the outer cylinder be made so that the outside of the cylinder fastener like ribs and grooves, but the ones caused thereby Waves on the inside of the outer cylinder be covered by an inner cylinder. This can both the outer fasteners one piece with the cylinder, as well as a good surface property of the inner tread (the inner surface the inner cylinder) can be produced without the inner surface further processed must become.
Bevorzugt wird der innere und/oder der äußere Kunststoffzylinder mittels Spritzgußverfahren hergestellt. Spritzußverfahren werden im großen Maße verwendet um preiswert Kunsstoffteile in großen Mengen herzustellen. So ist es möglich relativ einfach und preiswert Zylindergehäuse für hydraulische Systeme herzustellen, die sowohl aufgrund der an der Außenseite ausgebildeten Befestigungsmittel leicht zu befestigen sind, als auch aufgrund der Zwei- oder Mehrteiligkeit des Herstellungsprozesses eine gute Oberfläche in dem Inneren des Zylindergehäuses aufweisen.Prefers becomes the inner and / or the outer plastic cylinder produced by injection molding. Spritzußverfahren are used to a large extent to produce inexpensive plastic parts in large quantities. So Is it possible relatively simple and inexpensive to manufacture cylinder housings for hydraulic systems, which is easy due to both the fasteners formed on the outside to be attached, as well as due to the two or more parts the manufacturing process have a good surface in the interior of the cylinder housing.
Weiter bevorzugt wird der innere Zylinder in den äußeren Zylinder gegossen. Durch dieses Verfahren des Gießens bzw. Spritzgießens wird der zuerst der äußere Zylinder geformt und anschließend der innere Zylinder in den äußeren (spritz-)gegossen. Dadurch verbinden sich die beiden Zylinder unlösbar, wodurch das daraus entstehende Zylindergehäuse leicht zu handhaben und zu verbauen ist.Further Preferably, the inner cylinder is poured into the outer cylinder. By this method of casting or injection molding the first becomes the outer cylinder shaped and then the inner cylinder poured into the outer (injection). Thereby The two cylinders combine inextricably, making the resulting Cylinder housing light to handle and to install is.
Auch kann der äußere Zylinder aus einem vom inneren Zylinder unterschiedlichen Kunststoff gefertigt werden. Daraus ergeben sich weitere Variationsmöglichkeiten in der Konstruktion des Zylinders. So kann das Material des äußeren Zylinders den Umgebungsbedingungen etc. angepasst werden, während bei der Materialauswahl des inneren Zylinders auf Verschleißfestigkeit, Gleiteigenschaften und Dichtungseigenschaften geachtet werden kann.Also can the outer cylinder made of a different plastic from the inner cylinder become. This results in further variations in the design of the cylinder. So the material of the outer cylinder can the environmental conditions etc. are adjusted while in the material selection of the inner cylinder for wear resistance, Slip properties and sealing properties can be respected.
Weiter umfasst die Erfindung einen Zylinder für ein hydraulisches System mit mindestens einem inneren und einen äußeren Zylinderelement wobei das äußere Zylinderelement aus einem anderen Kunststoffmaterial gespritzt und oder gegossen ist als das innere Zylinderelement. Durch die Verwendung zweier unterschiedlicher Kunststoffe kann einerseits ein preiswerter, einfacher Zylindergehäuse zur Verfügung gestellt werden, der an der äußeren Zylinderoberfläche von der inneren Oberfläche unterschiedliche Eigenschaften aufweist.Furthermore, the invention comprises a cylinder for a hydraulic system with at least one inner and an outer cylinder member wherein the outer cylinder member is molded and molded of a different plastic material, or is cast as the inner cylinder member. By using two different plastics on the one hand a cheap, simple cylinder housing can be made available, which has different properties on the outer cylinder surface of the inner surface.
Die Erfindung wird im folgenden anhand einer Zeichnung beschrieben.The Invention will be described below with reference to a drawing.
- 11
- Zylindergehäusecylinder housing
- 22
- äußeres Elementouter element
- 33
- inneres Elementinner element
- 44
- Nutgroove
- 55
- Rippenribs
- 66
- Flanschflange
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007014305A DE102007014305A1 (en) | 2006-04-21 | 2007-03-26 | Cylindrical housing manufacturing process for hydraulic systems involves two stages, one for making external plastic cylinder, and other for making internal one |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006018698 | 2006-04-21 | ||
DE102006018698.2 | 2006-04-21 | ||
DE102007014305A DE102007014305A1 (en) | 2006-04-21 | 2007-03-26 | Cylindrical housing manufacturing process for hydraulic systems involves two stages, one for making external plastic cylinder, and other for making internal one |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007014305A1 true DE102007014305A1 (en) | 2007-10-25 |
Family
ID=38536968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007014305A Withdrawn DE102007014305A1 (en) | 2006-04-21 | 2007-03-26 | Cylindrical housing manufacturing process for hydraulic systems involves two stages, one for making external plastic cylinder, and other for making internal one |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007014305A1 (en) |
-
2007
- 2007-03-26 DE DE102007014305A patent/DE102007014305A1/en not_active Withdrawn
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8139 | Disposal/non-payment of the annual fee |