EP1862715B1 - Compression device - Google Patents
Compression device Download PDFInfo
- Publication number
- EP1862715B1 EP1862715B1 EP07405143A EP07405143A EP1862715B1 EP 1862715 B1 EP1862715 B1 EP 1862715B1 EP 07405143 A EP07405143 A EP 07405143A EP 07405143 A EP07405143 A EP 07405143A EP 1862715 B1 EP1862715 B1 EP 1862715B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- compression device
- pressed
- engaging
- parts
- 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.)
- Active
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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
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
-
- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
- B21D39/048—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods using presses for radially crimping tubular elements
Definitions
- the present invention relates to a pressing device for relative axial displacement of two coaxial with each other and only by means of high compression pressure against each other displaceable parts with the parts to be pressed coaxially comprehensive housing which in the closed state at least one coaxial annular engagement edge for engagement on one of the parts to be pressed , an axially displaceable inside the housing pressing plate having a coaxial annular engagement edge for engagement with the second part to be pressed and a number of annularly arranged pressure cylinders according to the preamble of claim 1.
- Pressing operations of this kind are used, for example, in the pressing of pipe ends or shaft connections.
- High compression pressures are required because the friction must be overcome by a tight fit and in many cases additional material deformation must be effected.
- a typical example is the pressing and squeezing of collets or sleeves in corresponding tool or collet holder in machine tools.
- the collets or sleeves with the tool shank used can not readily in the recording of the collet holder introduced and fixed with a clamping nut or vice versa removed after loosening the clamping nut, but must be pressed in with high pressure and again squeezed out.
- This pressing in and out have disadvantages.
- a pressing device that fulfills these tasks is in the CH-A-0862/03 described.
- this known device is only suitable for one tool size, ie, different devices are required for different tool sizes.
- Another problem with the known device is that the required pressing pressure is not readily adjustable.
- the invention has for its object to provide a pressing device that can accommodate different tool or workpiece sizes and with each adjusted pressures or can press out.
- a pressing device with the features of claim 1, which is characterized by an outer housing and insertable therein insert from at least partially separable shells, each having two fixed plates with engagement edges for engagement on one of the parts to be pressed and an axially movable pressure plate having an engagement edge for engagement with the second part to be pressed.
- Fig. 1 shows the essential parts of a pressing device according to the invention, wherein details such as hinge, closure, hydraulic lines, etc. are omitted in this illustration for the sake of clarity.
- An outer housing 1 consists of two mutually rotatable about a connecting axis shells 2, each consisting of an upper part 3 and a rigidly connected to this bottom part 4.
- Each half-shell has a recess 5 in which a slot of a lower fixed plate 6, an upper fixed plate 7 and a displaceable between the two fixed plates pressing plate 8 is inserted.
- the two slots in the half-shells together form a removable jaw assembly, which fully includes inserted tool or workpiece parts when the two half-shells of the housing are closed.
- the inserts in the half-shells are therefore referred to as slide-in halves.
- FIG. 2 shown representation of a half-shell 2 of the outer housing without insert it can be seen that the recess 5 has a semi-cylindrical shape.
- Fig. 3 is an illustration of a half-shell 2 of the outer housing, in addition four print cylinders 9 are visible, which are arranged in the body of the half-shell above the recess.
- each insert half consists, as mentioned, of two fixed plates 6, 7 and a pressing plate 8 displaceable therebetween by the pressure pistons 10.
- the pressing plate 8 is pressed against the upper fixed plate 7, when the impression cylinders are not pressurized by the hydraulics.
- the pressure pistons are in this initial or resting state in their uppermost position in which they flush with the top of the upper fixed plate 7, and with the upper wall of the recess 5 are. In this state, the insertion half can be removed from the recess.
- the two fixed plates are interconnected by means of guide pins 20 through which the movable pressure plate is guided.
- the insertion halves thus form a unit which can be inserted as a whole into the housing recess and can be removed from it.
- the upper fixed plate 7 has an engaging edge 12 which engages for the expression of a collet from a holder in a corresponding groove or a shoulder of the collet holder.
- the lower fixed plate 6 has a corresponding engaging edge 13 for engagement in the collet holder for the press-fitting operation.
- the two engagement edges of the fixed plates are approximately rectangular in cross section, ie their flanks lie in planes perpendicular to the device axis.
- the slidable press plate 8 has an engaging edge 14 for engaging a corresponding groove of a collet. This engaging edge 14 has conical flanks, in contrast to those of the fixed plates, because of the corresponding engagement surfaces of the collets.
- Fig. 5 shown has the pressure plate 8 integrally formed bolts 15 which extend through corresponding holes 16 of the upper fixed plate 7 to the pressure piston.
- the pressure plate 8 integrally formed bolts 15 which extend through corresponding holes 16 of the upper fixed plate 7 to the pressure piston.
- the pressure plate 8 can also be missing at individual holes in the upper fixed plate 7 bolts, as in the case of the hole shown to the right.
- Fig. 6 and 8th show used bolts in each case two holes visible in section and thus the arrangement for a higher pressure transmission to the press plate.
- the Fig. 7 and 9 show a bolt only in each one of two holes and thus an arrangement for the transmission of lower pressure on the press plate.
- Fig. 10 shows a further variant, as may be done differently depending on the pressure transfer.
- the pressure pistons consist of an inner piston 18 and an outer piston 19 enclosing this coaxially, in the manner of a telescopic arrangement.
- the piston can also be divided into several coaxial pistons to further subdivide the pressure transmission.
- Fig. 11 With the above described and in Fig. 10 shown coaxial piston is possible to arrange per half shell only two impression cylinder, as shown in the plan view of Fig. 11 is shown.
- the two impression cylinders are how Fig. 11 also shows, not uniformly distributed over the semicircle, that is arranged at an angle of 60 °, but moved closer to the parting plane between the two device halves. This ensures that the tilting effect is reduced during pressing.
- FIGS. 12 and 13 also show the arrangement of the printing cylinder in uneven distribution.
- the four stepped bolts of in Fig. 8 illustrated embodiment of a drawer half, as in Fig. 12 shown, moved to the dividing plane.
- Fig. 13 shows an embodiment with six bolts 16 per drawer half, which are also shifted to the parting plane to reduce the tilting effect.
- FIG. 17 various possibilities of controlling the printing cylinder are shown schematically.
- the hydraulic pressure is generated by a hand pump 26 and directed to the two half-shells 2 of the device.
- valves 27 are provided, which are opened when inserting a slot by the actuating pins 21 and getting closed. If both valves are closed, only the two middle pressure cylinders are pressurized and the lowest pressure level is generated on the pressure plate 8. If the left valve is open and the right closed, then in addition the upper pressure cylinder is pressurized and thus causes an increased pressure on the pressure plate 8. Finally, when both valves are open, all five pressure cylinders are active.
- valve 27 In the lower half shell, a variant is shown in which only one valve 27 is provided. If this valve is closed, only the two middle pressure cylinder are pressurized and causes a lower pressure on the pressure plate. When the valve is opened by inserting a drawer, all pressure cylinders become active and the pressure plate is pressurized.
- the hydraulic supply lines between the two half-shells of the device are integrated into the hinge 23 connecting them.
- the hydraulic connection is shown on one of the two half-shells.
- This hydraulic connection also serves as a hinge for the rotation of the device by 180 ° for the change between pressing and pressing.
- a bearing 28 is provided in the hydraulic connection.
- Fig. 15 shows two interlocking and connected by a bolt 24 blocks 25.
- Fig. 16 Parts of the blocks are shown cut.
- outwardly leading holes 28 are provided, which are closed at its outer end by a screw. They stand with the hydraulic supply lines to the pressure cylinders inside the housing halves in conjunction.
Description
Die vorliegende Erfindung betrifft eine Pressvorrichtung zur relativen axialen Verschiebung zweier koaxial zueinander angeordneter und nur mittels hohem Pressdruck gegeneinander verschiebbarer Teile mit einem die zu verpressenden Teile koaxial umfassenden Gehäuse, welches im geschlossenen Zustand mindestens eine koaxiale ringförmige Eingriffkante für den Eingriff an einem der zu pressenden Teile, eine im Inneren des Gehäuses axial verschiebbare Pressplatte mit einer koaxialen ringförmigen Eingriffkante für den Eingriff an dem zweiten zu pressenden Teil und einer Anzahl von ringförmig angeordneten Druckzylindern nach dem Oberbegriff des Anspruchs 1.The present invention relates to a pressing device for relative axial displacement of two coaxial with each other and only by means of high compression pressure against each other displaceable parts with the parts to be pressed coaxially comprehensive housing which in the closed state at least one coaxial annular engagement edge for engagement on one of the parts to be pressed , an axially displaceable inside the housing pressing plate having a coaxial annular engagement edge for engagement with the second part to be pressed and a number of annularly arranged pressure cylinders according to the preamble of
Pressvorgänge dieser Art kommen beispielsweise beim Verpressen von Rohrenden oder Wellenverbindungen zur Anwendung. Hohe Pressdrücke werden benötigt, weil die Reibung einer engen Passung überwunden und in vielen Fällen eine zusätzliche Materialverformung bewirkt werden muss. Ein typisches Beispiel ist das Einpressen und Auspressen von Spannzangen oder -hülsen in entsprechende Werkzeug- bzw. Spannzangenhalter in Werkzeugmaschinen.Pressing operations of this kind are used, for example, in the pressing of pipe ends or shaft connections. High compression pressures are required because the friction must be overcome by a tight fit and in many cases additional material deformation must be effected. A typical example is the pressing and squeezing of collets or sleeves in corresponding tool or collet holder in machine tools.
Für bestimmte Ausführungsformen von Werkzeugaufnahmen, insbesondere solche mit geringer oder ohne Konizität von Spannzange und Aufnahme, wie sie für Maschinen mit sehr hohen Drehzahlen bevorzugt werden, können die Spannzangen oder -hülsen mit dem eingesetzten Werkzeugschaft nicht ohne weiteres in die Aufnahme des Spannzangenhalters eingeführt und mit einer Spannmutter fixiert oder umgekehrt nach Lösen der Spannmutter wieder entnommen werden, sondern müssen mit hohem Druck ein- und auch wieder ausgepresst werden. Für dieses Ein- und Auspressen gibt es verschiedene Lösungen, die aber mit Nachteilen behaftet sind.For certain embodiments of tool holders, in particular those with little or no taper of collet and recording, as they are preferred for machines with very high speeds, the collets or sleeves with the tool shank used can not readily in the recording of the collet holder introduced and fixed with a clamping nut or vice versa removed after loosening the clamping nut, but must be pressed in with high pressure and again squeezed out. There are various solutions for this pressing in and out, but they have disadvantages.
Eine Pressvorrichtung, die diese Aufgaben erfüllt ist in der
Der Erfindung liegt die Aufgabe zugrunde, eine Pressvorrichtung zu schaffen, die unterschiedliche Werkzeug- oder Werkstückgrössen aufnehmen kann und mit jeweils angepassten Drücken ein- oder auspressen kann.The invention has for its object to provide a pressing device that can accommodate different tool or workpiece sizes and with each adjusted pressures or can press out.
Erfindungsgemäss wird diese Aufgabe gelöst durch eine Pressvorrichtung mit den Merkmalen des Anspruchs 1, die sich auszeichnet durch ein äusseres Gehäuse und einen in dieses einsetzbaren Einschub aus mindestens teilweise trennbaren Schalen, die jeweils zwei feste Platten mit Eingriffkanten für den Eingriff an einem der zu pressenden Teile und eine axial bewegliche Pressplatte mit einer Eingriffkante für den Eingriff an dem zweiten zu pressenden Teil umfassen.According to the invention this object is achieved by a pressing device with the features of
Im folgenden wird anhand der beiliegenden Zeichnungen eine Ein- und Auspressvorrichtung für Flachkonus-Spannzangen als bevorzugte Ausführungsform der Erfindung beschrieben. Es zeigen
- Fig. 1
- eine perspektivische Darstellung einer Pressvorrichtung im geöffneten Zustand
- Fig. 2
- eine entsprechende Darstellung des äusseren Gehäuses einer Pressvorrichtung ohne eingesetzten Einschub
- Fig. 3
- eine entsprechende Darstellung des äusseren Gehäuses einer Pressvorrichtung ohne eingesetzten Einschub mit einer Darstellung der Anordnung von Druckzylindern
- Fig. 4
- eine perspektivische Darstellung einer bevorzugten Ausführungsform eines Einschubs, teilweise im Schnitt
- Fig. 5
- die in
Fig. 4 gezeigte Ausführungsform aus einer anderen Richtung und anders geschnitten - Fig. 6
- die in
Fig. 4 gezeigte Ausführungsform für hohen Pressdruck - Fig. 7
- die in
Fig. 4 gezeigte Ausführungsform für niedrigen Pressdruck - Fig. 8
- eine andere bevorzugte Ausführungsform eines Einschubs
- Fig. 9
- die in
Fig. 8 gezeigte Ausführungsform für niedrigeren Pressdruck - Fig. 10
- eine weitere bevorzugte Ausführungsform eines Einschubs
- Fig. 11
- eine Draufsicht auf die Anordnung gemäss
Fig. 10 - Fig. 12
- eine Draufsicht auf die Anordnung gemäss
Fig. 4 - Fig. 13
- eine Draufsicht auf eine alternative Ausführungsform
- Fig. 14
- eine Draufsicht auf die Pressvorrichtung mit der Hydraulikzuführung im Schnitt
- Fig. 15
- eine perspektivische Ansicht des Scharniers des äusseren Gehäuses
- Fig. 16
- das in
Fig. 15 gezeigte Scharnier teilweise geschnitten - Fig. 17
- ein Zuleitungsschema zu den Druckzylindern
- Fig. 18, 19
- weitere Möglichkeiten der Pressdruckanpassung.
- Fig. 1
- a perspective view of a pressing device in the open state
- Fig. 2
- a corresponding representation of the outer housing of a pressing device without inserted slot
- Fig. 3
- a corresponding representation of the outer housing of a pressing device without inserted slot with a representation of the arrangement of printing cylinders
- Fig. 4
- a perspective view of a preferred embodiment of a drawer, partially in section
- Fig. 5
- in the
Fig. 4 embodiment shown from a different direction and cut differently - Fig. 6
- in the
Fig. 4 shown embodiment for high pressure - Fig. 7
- in the
Fig. 4 shown embodiment for low compression pressure - Fig. 8
- another preferred embodiment of a drawer
- Fig. 9
- in the
Fig. 8 shown embodiment for lower pressure - Fig. 10
- Another preferred embodiment of a drawer
- Fig. 11
- a plan view of the arrangement according to
Fig. 10 - Fig. 12
- a plan view of the arrangement according to
Fig. 4 - Fig. 13
- a plan view of an alternative embodiment
- Fig. 14
- a plan view of the pressing device with the hydraulic supply in section
- Fig. 15
- a perspective view of the hinge of the outer housing
- Fig. 16
- this in
Fig. 15 Partially cut hinge - Fig. 17
- a supply scheme to the pressure cylinders
- Fig. 18, 19
- other possibilities of pressing pressure adjustment.
Aus der in
In den folgenden Darstellungen der
Die beiden festen Platten sind untereinander mittels Führungsstiften 20 miteinander verbunden, durch welche die bewegliche Pressplatte geführt wird. Die Einschubhälften bilden somit eine als Ganzes in die Gehäuseausnehmung einsetzbare und aus ihr entnehmbare Einheit.The two fixed plates are interconnected by means of guide pins 20 through which the movable pressure plate is guided. The insertion halves thus form a unit which can be inserted as a whole into the housing recess and can be removed from it.
Wie
Wie in
Anstelle der einstückig an der Pressplatte angeformten Bolzen 15 können, wie in den
Mit den vorstehend beschriebenen und in
Die
Mit den beschriebenen Anordnungen ergeben sich, wie zum Teil schon erwähnt, verschiedene Möglichkeiten, den Pressdruck zu variieren. Es können einer oder mehrere Bolzen fehlen und somit die entsprechenden Kolben ins Leere drücken. Alternativ können, wie in
Eine andere Möglichkeit besteht darin, mittels Betätigungsstiften 21 beim Einsetzen der jeweiligen Einschubhälfte Steuerventile in den Hydraulikzuleitungen zu schliessen und dadurch einzelnen Druckzylinder auszuschalten. In
In der oberen Halbschale ist eine Variante gezeigt, bei der zwei Ventile 27 vorgesehen sind, welche beim Einsetzen eines Einschubs durch die Betätigungsstifte 21 geöffnet bzw. geschlossen werden. Sind beide Ventile geschlossen, werden nur die beiden mittleren Druckzylinder mit Druck beaufschlagt und die niedrigste Druckstufe auf die Pressplatte 8 erzeugt. Ist das linke Ventil geöffnet und das rechte geschlossen, so wird zusätzlich der obere Druckzylinder mit Druck beaufschlagt und somit ein erhöhter Druck auf die Pressplatte 8 bewirkt. Sind schliesslich beide Ventile geöffnet, so sind alle fünf Druckzylinder aktiv.In the upper half-shell, a variant is shown in which two
In der unteren Halbschale ist eine Variante gezeigt, bei der nur ein Ventil 27 vorgesehen ist. Ist dieses Ventil geschlossen, so werden nur die beiden mittleren Druckzylinder mit Druck beaufschlagt und ein geringerer druck auf die Pressplatte bewirkt. Wenn das Ventil durch das Einsetzen eines Einschubs geöffnet wird, werden alle Druckzylinder aktiv und die Pressplatte mit höherem Druck versehen.In the lower half shell, a variant is shown in which only one
Um die Gefahr eines Bruchs eines Ölschlauchs zu vermeiden, sind die Hydraulikzuleitungen zwischen den beiden Halbschalen der Vorrichtung in das sie verbindende Scharnier 23 integriert. In
Das Scharnier 23 besteht, wie
Claims (6)
- Compression device for the relative axial displacement of two parts arranged coaxially relative to one another and displaceable towards one another only by means of high pressure, comprising a housing (1) which coaxially encompasses the parts to be pressed and, in the closed state, has at least one coaxial annular engaging edge for engaging one of the parts to be pressed, a press plate (8) axially displaceable in the interior of the housing and having a coaxial annular engaging edge for engaging the second part to be pressed and a number of pressure cylinders (9) arranged in an annular manner, characterized by an outer housing (1) hinged along an axial plane and insert halves (6, 7, 8) which can be inserted into said housing and comprise in each case two fixed plates (6, 7) having engaging edges (12, 13) for engaging one of the parts to be pressed and an axially movable press plate (8) having an engaging edge (14) for placing against the second part to be pressed.
- Compression device according to Claim 1, characterized in that pairs of insert halves of different size are provided for pressing parts of different size.
- Compression device according to Claim 1, characterized in that the action of the pressure cylinders (9) is automatically and selectively controlled for generating different pressures.
- Compression device according to Claim 3, characterized in that valves (27) which are actuated on insertion of the insert halves are provided for selective control of the pressure cylinders (9).
- Compression device according to Claim 3, characterized in that pressure transmission elements (17) to the press plate (8) are lacking in the case of individual inserts.
- Compression device according to Claim 1, characterized in that the distribution of the pressure cylinders (9) is nonuniform and is shifted towards the parting plane between the half-shells.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH8962006 | 2006-06-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1862715A1 EP1862715A1 (en) | 2007-12-05 |
EP1862715B1 true EP1862715B1 (en) | 2009-07-15 |
Family
ID=37744386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07405143A Active EP1862715B1 (en) | 2006-06-02 | 2007-05-18 | Compression device |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070281528A1 (en) |
EP (1) | EP1862715B1 (en) |
JP (1) | JP2007319935A (en) |
CN (1) | CN101081443A (en) |
DE (1) | DE502007001053D1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH702687B1 (en) * | 2008-03-25 | 2011-08-31 | Rego Fix Ag | Pressing device. |
DE102012105655A1 (en) | 2012-06-28 | 2014-01-02 | Viega Gmbh & Co. Kg | Press jaw and method for producing a permanent pipe connection and system of a pressing jaw and a fitting |
CH707389A2 (en) * | 2012-12-28 | 2014-06-30 | Fipe Ag | Tool for axial pressing of fittings. |
CN107571195A (en) * | 2017-09-20 | 2018-01-12 | 重庆佳岳机械制造有限公司 | A kind of steel ball type synchronizer frock |
EP3473384A1 (en) * | 2017-10-20 | 2019-04-24 | Haelok AG | Mounting device for creating a press-fitting connection between a fitting kit and a pipe section |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1818435A (en) * | 1929-02-20 | 1931-08-11 | Frank H Smith | Apparatus for joining pipes |
GB2240599A (en) * | 1989-09-29 | 1991-08-07 | Welsh Water Plc | Apparatus and fitting for coupling plastics pipes |
DE9406748U1 (en) * | 1994-04-22 | 1994-06-16 | Knipping Daniel | Force application device |
CH696160A5 (en) * | 2003-05-15 | 2007-01-31 | Rego Fix Ag | Pressing device. |
-
2007
- 2007-05-18 EP EP07405143A patent/EP1862715B1/en active Active
- 2007-05-18 DE DE502007001053T patent/DE502007001053D1/en active Active
- 2007-05-31 JP JP2007145946A patent/JP2007319935A/en active Pending
- 2007-06-01 CN CNA2007101065431A patent/CN101081443A/en active Pending
- 2007-06-01 US US11/809,481 patent/US20070281528A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP1862715A1 (en) | 2007-12-05 |
DE502007001053D1 (en) | 2009-08-27 |
JP2007319935A (en) | 2007-12-13 |
US20070281528A1 (en) | 2007-12-06 |
CN101081443A (en) | 2007-12-05 |
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