DE102022122108B3 - Positioning device with actuator and counter stop made of wedge elements - Google Patents

Abstract

The invention relates to a positioning device, comprising a housing (1), an actuator (2) mounted in a linearly movable manner in the housing (1), a stop (2.1) provided on the actuator (2) and a stop (2.1) which can be fixed in the housing (1) with the stop (2.1) to limit the stroke length of the actuator (2) cooperating counter-stop (1.1), with an insertion opening (1.2) for the counter-stop (1.1) being provided on the housing (1). According to the invention, it is provided that the counter-stop (1.1) has two wedge elements (1.1.1, 1.1.2) that are adjustable relative to one another and can therefore be fixed in the insertion opening (1.2).

Description

The invention relates to a positioning device according to the preamble of patent claim 1.

A positioning device of the type mentioned at the beginning is from the document DE 100 13 874 A1 known. This positioning device, which in this specific case has a pivoting clamping arm, consists of a housing, an actuator that is linearly movably mounted in the housing, a stop provided on the actuator and a counter-stop that can be fixed in the housing and interacts with the stop to limit the stroke length of the actuator, on the housing an insertion opening is provided for the counter stop. In this solution, a force introduced by the actuator via the stop into the counter-stop is introduced into the head piece or housing via the travel limiter (see reference number 82 there) and the cover plate (see reference number 81 there).

The invention is based on the object of improving a positioning device of the type mentioned at the beginning. In particular, a positioning device should be created in which a force coming from the actuator is better introduced into the housing or diverted to it.

This task is achieved with a positioning device of the type mentioned by the features listed in the characterizing part of patent claim 1.

According to the invention it is therefore provided that the counter-stop has two wedge elements that are adjustable relative to one another and can therefore be fixed in the insertion opening.

In other words, the solution according to the invention is characterized in that the combination of the insertion opening in the housing and the two wedge elements which can be adjusted to fit in the insertion opening - as a solid assembly - forms the counter-stop for the stop arranged on the actuator. This combination leads to a very stable solution in which the counterstop can also be adjusted very easily if necessary, which will be explained in more detail below.

Other advantageous developments of the positioning device according to the invention result from the dependent patent claims.

For the sake of completeness, here is the document DE 20 2007 010 370 U1 called, in which an expansion bolt is used to move a component in a targeted manner. Furthermore, please refer to the documents DE 26 50 713 A1 and DE 867 909 B pointed out, in which an expansion bolt is used to firmly connect components to one another.

The positioning device according to the invention, including its advantageous developments according to the dependent claims, is explained in more detail below using the graphic representation of a preferred exemplary embodiment.

• 1 im Schnitt die erfindungsgemäße Positioniervorrichtung in einer Rückansicht entlang der Schnittlinie A-A in 2;
• 2 im Schnitt die Positioniervorrichtung gemäß 1 in einer geschnittenen Seitenansicht;
• 3 perspektivisch der Gegenanschlag für die Positioniervorrichtung gemäß 1; und
• 4 in Seitenansicht der Gegenanschlag gemäß 3.

It shows

• 1 in section the positioning device according to the invention in a rear view along the section line AA in 2 ;
• 2 in section the positioning device according to 1 in a sectioned side view;
• 3 perspectively the counter-stop for the positioning device 1 ; and
• 4 in side view the counter stop according to 3 .

The positioning device shown in the figures initially consists in a known manner of a housing 1, an actuator 2 movably mounted linearly in the housing 1, a stop 2.1 provided on the actuator 2 and a stop 2.1 which can be fixed in the housing 1 and interacts with the stop 2.1 to limit the stroke length of the actuator 2 Counter-stop 1.1, with an insertion opening 1.2 being provided on the housing 1 for the counter-stop 1.1.

It is preferably provided that the actuator 2 is designed to be driven either by an electric motor, pneumatically or hydraulically; this drive is at the bottom of each 1 and 2 shown.

In addition, it is preferably provided that the stop 2.1 is either screwed into the actuator 2 and/or designed to protrude from the actuator 2 in the shape of a peg.

Furthermore, from a geometric point of view, it is preferably provided that a main longitudinal axis of the counter-stop 1.1 is formed at right angles to a main longitudinal axis of the actuator 2, but laterally offset from it. Furthermore, it is also or alternatively preferably provided that a main longitudinal axis of the stop 2.1 is designed at right angles to a main longitudinal axis of the actuator 2 and intersects it.

What is essential for the solution according to the invention is that the counterstop 1.1 has two has wedge elements 1.1.1, 1.1.2 which are adjustable to one another and can therefore be fixed in the insertion opening 1.2.

A screw element 1.1.3 is also preferably provided for connecting the two wedge elements 1.1.1, 1.1.2. In addition, a threaded hole 1.1.1.1 is preferably provided on one of the two wedge elements 1.1.1 and a through hole 1.1.2.1 for the screw element 1.1.3 on the other of the two wedge elements 1.1.2. Geometrically speaking, it is preferred that the threaded hole 1.1.1.1, the through hole 1.1.2.1 and the screw element 1.1.3 are designed to share a common longitudinal axis.

As can be seen from the figures, it is preferably provided that the threaded hole 1.1.1.1 is arranged at a thicker end of the wedge element 1.1.1. Furthermore, it is preferably provided that a screw element holder 1.1.2.3 provided with the through hole 1.1.2.1 is arranged at a thinner end of the wedge element 1.1.2.

The use of the so-called self-locking (see also https://de.wikipedia.org/w/index.php?title= Selbsthemmung&oldid=224834918) is furthermore and in particular with reference to 4 It is preferably provided that a friction surface 1.1.1.2 provided on one wedge element 1.1.1 is designed to interact with a friction surface 1.1.2.2 provided on the other wedge element 1.1.2. It is further preferably provided that the friction surfaces 1.1.1.2, 1.1.2.2 are designed to run obliquely to the longitudinal axis of the screw element 1.1.3.

Furthermore, it looks particularly good 3 As can be seen, it is preferably provided that the counter-stop 1.1 has an approximately cylindrical outer counter. Accordingly, it is also preferably provided that the insertion opening 1.2 (on the housing 1) is designed as a cylindrical bore, see in particular 2 . In this case, several insertion openings 1.2 are preferably provided on the housing 1 for the counter-stop 1.1.

Like from the 1 and 2 As can be seen, a slot 1.3 is preferably provided on the housing 1, with its longitudinal extent running parallel to a main axis of the actuator 2 and ensuring unhindered movement of the stop 2.1. A guide element 1.4 running on both sides of the stop 2.1 is preferably arranged in the slot 1.3. This guide element 1.4 is preferably made of a harder material than the housing 1. In addition, to further increase stability on the guide element 1.4, at least one through opening 1.4.1 is preferably provided for the counter-stop 1.1.

• Schritt 1: Der vormontierte Gegenanschlag 1.1 wird bis zum Anschlag in die Einstecköffnung 1.2 eingeschoben. Dabei ist das Schraubenelement 1.1.3 allerdings noch nicht so weit eingeschraubt, wie in 4 dargestellt.
• Schritt 2: Zur Herstellung eines Reibschlusses zwischen den Reibflächen 1.1.1.2, 1.1.2.2 wird das eine Keilelement 1.1.1 durch Krafteinwirkung auf das Schraubenelement 1.1.3 mit dem anderen Keilelement 1.1.2 verkeilt (der Umfang des Gegenanschlags 1.1 wird bzw. ist dabei vergrößert). Die Kraft kann dabei beispielsweise durch einen Schlag mit einem Hammer oder mit einer Presse auf das Schraubenelement 1.1.3 aufgebracht werden.
• Schritt 3: Das Schraubenelement 1.1.3 wird - zur Beseitigung einer möglichen Störkontur - vorzugsweise soweit in die Gewindebohrung 1.1.1.1 eingeschraubt, bis es nicht mehr aus der Einstecköffnung 1.2 heraus steht. Nun ist der erfindungsgemäße Gegenanschlag 1.1 fixiert und damit einsatzbereit.
• Schritt 4: Soll nun im Rahmen einer Hublängeneinstellung die Positioniervorrichtung angepasst werden, wird das Schraubenelement 1.1.3 noch weiter eingeschraubt, wodurch sich das Keilelement 1.1.1 in Richtung des Schraubenelementhalters 1.1.2.3 bewegt und der Reibschluss zwischen den Reibflächen 1.1.1.2, 1.1.2.2 gelöst wird (dabei nimmt der Umfang des Gegenanschlags 1.1 wieder ab).
• Schritt 5: Schließlich kann der Gegenanschlag 1.1 zum Beispiel durch Ziehen am Schraubenelement 1.1.3 oder auch mit einem sogenannten Durchschläger (hierfür ist die in 1 zu erkennende Zusatzöffnung am Gehäuse 1 vorgesehen) aus dem Gehäuse 1 entnommen bzw. heraus geschlagen und gegebenenfalls eine Neueinstellung vorgenommen werden.

The assembly or disassembly of the counterstop 1.1 according to the invention ultimately works as follows:

• Step 1: The pre-assembled counter stop 1.1 is inserted into the insertion opening 1.2 as far as it will go. However, the screw element 1.1.3 is not yet screwed in as far as in 4 shown.
• Step 2: To create a frictional connection between the friction surfaces 1.1.1.2, 1.1.2.2, one wedge element 1.1.1 is wedged with the other wedge element 1.1.2 by applying force to the screw element 1.1.3 (the circumference of the counter-stop 1.1 is or is enlarged). The force can be applied to the screw element 1.1.3, for example, by hitting it with a hammer or with a press.
• Step 3: The screw element 1.1.3 is - to eliminate a possible disruptive contour - preferably screwed into the threaded hole 1.1.1.1 until it no longer protrudes from the insertion opening 1.2. Now the counter stop 1.1 according to the invention is fixed and therefore ready for use.
• Step 4: If the positioning device is now to be adjusted as part of a stroke length adjustment, the screw element 1.1.3 is screwed in even further, whereby the wedge element 1.1.1 moves in the direction of the screw element holder 1.1.2.3 and the frictional connection between the friction surfaces 1.1.1.2, 1.1 .2.2 is solved (the circumference of the counter stop 1.1 decreases again).
• Step 5: Finally, the counter-stop 1.1 can be removed, for example by pulling on the screw element 1.1.3 or with a so-called punch (the one in 1 Additional opening provided on the housing 1 (which can be recognized) can be removed or knocked out of the housing 1 and, if necessary, a new setting can be carried out.

Reference symbol list

1

Housing

1.1

Counter stop

1.1.1

Wedge element

1.1.1.1

Threaded hole

1.1.1.2

friction surface

1.1.2

Wedge element

1.1.2.1

Through hole

1.1.2.2

friction surface

1.1.2.3

Screw element holder

1.1.3

Screw element

1.2

Insert opening

1.3

slot

1.4

Leadership element

1.4.1

Passage opening

2

actuator

2.1

attack

Claims (10)

Positioning device, comprising a housing (1), an actuator (2) mounted linearly movably in the housing (1), a stop (2.1) provided on the actuator (2) and a stop (2.1) which can be fixed in the housing (1) and is connected to the stop (2.1). Stroke length limitation of the actuator (2) cooperating counter-stop (1.1), an insertion opening (1.2) being provided on the housing (1) for the counter-stop (1.1), characterized in that the counter-stop (1.1) has two mutually adjustable and thereby in the insertion opening ( 1.2) has fixable wedge elements (1.1.1, 1.1.2). positioning device Claim 1 , characterized in that a screw element (1.1.3) is provided for connecting the two wedge elements (1.1.1, 1.1.2). positioning device Claim 2 , characterized in that a threaded hole (1.1.1.1) is provided on one of the two wedge elements (1.1.1) and a through hole (1.1.2.1) for the screw element (1.1.3) is provided on the other of the two wedge elements (1.1.2). . positioning device Claim 3 , characterized in that the threaded hole (1.1.1.1), the through hole (1.1.2.1) and the screw element (1.1.3) are designed to share a common longitudinal axis. positioning device Claim 3 or 4 , characterized in that the threaded hole (1.1.1.1) is arranged at a thicker end of the wedge element (1.1.1). Positioning device according to one of the Claims 3 until 5 , characterized in that a screw element holder (1.1.2.2) provided with the through hole (1.1.2.1) is arranged at a thinner end of the wedge element (1.1.2). Positioning device according to one of the Claims 1 until 6 , characterized in that a friction surface (1.1.1.2) provided on one wedge element (1.1.1) is designed to interact with a friction surface (1.1.2.2) provided on the other wedge element (1.1.2). positioning device Claim 2 and 7 , characterized in that the friction surfaces (1.1.1.2, 1.1.2.2) are designed to run obliquely to the longitudinal axis of the screw element (1.1.3). Positioning device according to one of the Claims 1 until 8th , characterized in that the counter-stop (1.1) has an approximately cylindrical outer counter overall. Positioning device according to one of the Claims 1 until 9 , characterized in that the insertion opening (1.2) is designed as a cylindrical bore.

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