Applications of servo drives and tolerance rings and / or tolerance sleeves

Abstract

The invention relates to an servo drive and the use of a tolerance ring and / or a tolerance sleeve. For this purpose, a servo drive (1) is provided, wherein the servo drive housing (2) has at least one step (4), on which at least one functional surface (5) is formed, the functional surface comprising at least one inlet (6, 7) into the servo drive housing (2).

Description

Technical Field

[0001] The invention relates to an actuating drive, which is previously known in various embodiments from the prior art and practice. Background Art

[0002] The actuating drive has an actuating drive housing and, for example, serves to actuate fittings and / or valves, in which the actuating drive motor is arranged.

[0003] There are applications, for example in shipbuilding or plant engineering, in which a large number of such actuating drives must be accommodated in a relatively small installation space. Summary of the Invention

[0004] The object of the present invention is to provide an actuating drive of the type mentioned at the outset which can be easily installed even in a relatively small installation space.

[0005] To achieve this object, an actuating drive having the features of the invention is proposed. In particular, to achieve this object, an actuating drive is proposed which comprises an actuating drive housing in which the actuating drive motor is arranged, wherein the actuating drive housing has at least one step with at least one functional surface on which at least one access opening into the actuating drive housing can be formed and / or forms.

[0006] The step on the housing provides a functional surface, which can be provided, for example, on the freely accessible front or rear side of the actuating drive housing. The functional surface can be used for mounting a position indicator, for electrical connections to the housing, and / or, for example, for introducing end stop screws that limit the adjustment travel of the drive and / or of a valve or fitting actuated by the actuating drive.

[0007] Thus, the actuating drive according to the invention can be placed in the installation space provided for it in such a way that the lateral surfaces of the actuating drive housing do not necessarily have to be accessible. In this way, it is possible, for example, to arrange a plurality of such actuating drives closely side by side in order to make the best possible use of the available installation space.

[0008] The servo drive housing can have at least two housing parts that are arranged offset relative to one another to form a step. The at least two housing parts can be arranged offset relative to one another, for example, transversely to the axis of rotation of the servo drive motor. The offset of the at least two housing parts relative to one another can be the cause of the step and, thereby, the functional surface.

[0009] In one embodiment of the actuating drive, the at least one functional surface formed on the step and / or caused by the offset can be oriented perpendicular to the direction of the offset. A vector that can be used to indicate the direction of the offset is arranged perpendicular (at right angles) to the functional surface.

[0010] In another embodiment of the actuating drive, it can be provided that at least one functional surface of the actuating drive caused by the offset is oriented in the direction of the offset. A vector that can be used to indicate the direction of the offset can lie approximately or partially within the functional surface.

[0011] To achieve this object, a servo drive is also proposed, which has the features and methods of the present invention. In particular, a servo drive is proposed, which has a handwheel, which is preferably eccentrically arranged on a functional surface, such as one of the at least one functional surface, of the servo drive housing. The handwheel has a diameter that is at most as large as, and preferably smaller than, the maximum measurable distance between two opposing outer sides, between which the center of rotation of the handwheel is arranged.

[0012] In this case, the handwheel can, in particular, protrude laterally beyond one of the aforementioned outer sides of the servo drive housing of the servo drive. This makes it possible to position a plurality of such servo drives closely side by side, since, even in this embodiment of the servo drive, the lateral housing surfaces can remain free of functional elements, such as handwheels. This provides a servo drive that is particularly suitable for integration into a relatively small installation space.

[0013] The hand wheel can be arranged, for example, on one side, in particular an end side, of the actuating drive housing, for example, the step already mentioned above.

[0014] In each of the aforementioned servo drives, the servo drive motor can be arranged in one of the at least two housing parts of the servo drive housing. The servo drive output shaft can be arranged on a housing part of the servo drive housing that is offset relative to the housing part. The servo drive motor can be connected to the servo drive output shaft via a servo drive transmission. The servo drive transmission can extend from the housing part having the servo drive motor to the housing part having the servo drive output shaft. The servo drive transmission thus allows the servo drive motor in one housing part and the servo drive output shaft arranged in the other housing part to be positioned spatially spaced apart from each other.

[0015] In one embodiment of the actuating drive, it is provided that at least one of the at least one functional surface already mentioned is formed between the top and the bottom of the actuating drive housing.

[0016] In one embodiment of the actuating drive, one of the at least one functional surface can be formed on a side of the actuating drive housing facing away from the upper side of the actuating drive housing. A lead-through for an electrical connection to the actuating drive housing can be formed on this functional surface.

[0017] In one embodiment of the servo drive, one of the at least one functional surface is formed on a side of the servo drive housing that faces away from the bottom side of the servo drive housing. In one embodiment of the servo drive, one of the at least one functional surface can be arranged on a side of the housing that faces away from the side from which the servo drive output shaft emerges, for example, as already mentioned above.

[0018] In one embodiment of the servo drive, one of the at least one functional surface can be formed in the axial extension of the servo drive output shaft and preferably comprises at least one display device and / or at least one end stop screw and / or at least one operating element. The end stop screw already mentioned can also be referred to as an end position adjustment screw. In one embodiment of the servo drive, the servo drive housing can also have a functional surface in the axial extension of the servo drive motor.

[0019] For some applications, it's desirable to control the servo drive via Bluetooth. However, it's often necessary to design the servo drive in an explosion-proof manner, which means its servo drive housing should have as few openings as possible. It's also known to output status reports related to the servo drive via a display. In practice, this display is located behind a relatively large opening in previously known servo drives. To meet the explosion-proof requirements imposed on the servo drive housing of such servo drives, the relatively large opening must be sealed with a robust and correspondingly expensive inspection window.

[0020] A further object of the invention is therefore to provide an actuating drive, in particular an actuating drive of the type already described above, which can be controlled by means of Bluetooth and at the same time has relatively simple explosion protection.

[0021] To achieve this object, an actuating drive having the features of the present invention is proposed. In particular, to achieve this object, an actuating drive is proposed, which has an actuating drive housing, the actuating drive housing including at least one communication hole as a passage opening for a Bluetooth signal from the actuating drive housing, wherein the communication hole has a maximum diameter of 30 mm and is closed with a viewing window, and an LED is arranged in the actuating drive housing, the LED signal of which is perceptible to a user of the actuating drive through the viewing window.

[0022] In one embodiment of the actuating drive, the communication opening can have a maximum diameter of 25 mm.

[0023] It has been found that a communication hole with a maximum diameter of 30 mm, preferably a maximum of 25 mm, is sufficiently large to allow Bluetooth signals to pass through it with satisfactory quality. More precisely, the communication hole as a passage opening for the Bluetooth signal is relatively small, so that a display, as previously known in practice, may be difficult or almost impossible to integrate. However, this is compensated by using at least one LED for the status display.

[0024] The actuating drive according to the present invention is also characterized by simple explosion protection. Relatively small communication openings can be closed with correspondingly small inspection windows to meet frequently required explosion protection requirements. Thus, the material outlay and, ultimately, the cost of providing the desired explosion protection are lower with the actuating drive according to the present invention than with actuating drives having a relatively large display, without thereby compromising the functionality provided by the actuating drive.

[0025] In one embodiment of the servo drive, a Bluetooth module is provided behind the viewing window in the servo drive housing. In this way, low-interference or even interference-free communication with the Bluetooth module is possible, even if the servo drive housing itself is made of a material that shields radio signals.

[0026] With a communication hole having a diameter of maximum 30 mm, preferably a diameter of maximum 25 mm, a satisfactory compromise between the transmissibility of Bluetooth signals through the communication hole and the desired explosion protection is found.

[0027] To optimize communication with the Bluetooth module of the servo drive, it can be advantageous to position the Bluetooth module in the central area of ​​the projection of the communication hole onto the circuit board carrying the Bluetooth module. This ensures that the Bluetooth module is positioned as centrally as possible within the communication hole, allowing Bluetooth signals to be exchanged between the Bluetooth module and the receiver and / or transmitter to reliably reach the Bluetooth module from as many directions as possible. This measure maximizes the transmission and reception range of the Bluetooth module within the servo drive housing.

[0028] For this purpose, the Bluetooth module can be arranged, for example, at a distance between 0 mm and 15 mm, particularly preferably between 5 mm and 10 mm, relative to the aforementioned central spot and / or the communication opening and / or the viewing window, with which the communication opening is closed.

[0029] Using an LED as a status display for the servo drive allows it, in one embodiment of the servo drive, to be positioned outside the aforementioned central spot of the projection of the communication port onto the circuit board carrying the Bluetooth module. This allows the available installation space in the central spot to be used for the Bluetooth module and / or its antenna. The light signal emitted by the LED can also be perceived by a user through the communication port if the LED is positioned outside the aforementioned central spot.

[0030] To ensure that the LED is reliably visible even when it is not positioned directly behind the viewing window, it is advantageous if the viewing window that closes the communication aperture is made of a scattering material. The scattering material of the viewing window scatters the light signal emitted by the LED within the actuating drive housing. This allows the light signal to be detected from the outside largely independently of the position of the LED within the actuating drive housing.

[0031] In one embodiment of the servo drive, the Bluetooth module is disposed using SMD technology on, for example, the aforementioned printed circuit board. Furthermore, the Bluetooth module's integrated antenna can be disposed in, for example, the aforementioned central spot region of the projection of the communication port onto, for example, the aforementioned printed circuit board carrying the Bluetooth module. By disposing the Bluetooth module's antenna in the central spot region, the Bluetooth module's transmitter and receiver ranges can be optimized.

[0032] The distance between the Bluetooth module and the communication hole can be less than the axial length of the communication hole. This measure can also help to compensate for the relatively small size of the communication hole and the shielding effect of the servo drive housing and thus simplify communication with the Bluetooth module behind the communication hole.

[0033] In order to be able to output the status information of the servo drive via the LEDs, it may be advantageous if the servo drive includes a control device that is designed to read out and process the status reports of the servo drive. The control device may also be designed to actuate the LEDs in accordance with the status reports to output the status information. In this way, the status information of the servo drive can be output via the LEDs. Therefore, a relatively large display is not necessary for the status display. This is advantageous in light of the desired compactness of the servo drive and the simplest possible explosion protection. On the one hand, the display requires more structural space and therefore a larger servo drive housing, and on the other hand, a correspondingly large housing opening in the servo drive housing is required, which can complicate the explosion protection measures that would then have to be provided on the servo drive housing.

[0034] In all of the aforementioned actuating drives, it can be advantageous if the adjustment range of the actuating drive is limited by an end stop in order to prevent the actuating drive from damaging fittings or valves to be actuated by the actuating drive.

[0035] In particular, if the actuating drive is subject to movements, for example shocks and / or vibrations, it is desirable to provide a screw fastening for the end stop screw of such an actuating drive serving as an end stop.

[0036] Until now, locknuts have typically been used as screw fastenings. However, handling such locknuts is relatively difficult, particularly when only a small amount of installation space is available. The object of the present invention is to provide a space-saving design for such a screw fastening for an end stop screw in an actuating drive and to thereby provide an actuating drive that can also be easily integrated into a small installation space.

[0037] To achieve this object, an actuating drive having the features of the invention is proposed. In particular, to achieve this object, an actuating drive is proposed, which comprises an actuating drive housing, which comprises at least one adjustable end stop screw as an end stop for an adjustment movement of the actuating drive, wherein the end stop screw is fixed in a non-positive manner by means of a screw fastening in the form of a fixing sleeve.

[0038] In one embodiment of the actuating drive, the securing sleeve is preferably arranged under pressure in the securing position between the outer circumference of the screwing head of the end stop screw and the inner circumferential wall of the threaded hole of the actuating drive housing, into which the end stop screw is screwed. The securing sleeve is thus clamped between the outer circumference of the screwing head of the end stop screw and the inner circumferential wall of the threaded hole for the end stop screw, for example when tightening the end stop screw, and can prevent the end stop screw from being accidentally disengaged due to movements, impacts, and / or vibrations that could act on the actuating drive, thereby making the end stop adjustable for the actuating drive's adjustment movement.

[0039] In one embodiment of the actuating drive, a tolerance ring and / or a tolerance sleeve can be used as the securing sleeve, as is known, for example, as a frictionally locking and detachable connecting element in shaft-hub connections.

[0040] Such a tolerance ring and / or such a tolerance sleeve can be produced, for example, from a slotted ring from a spring strip material comprising corrugated embossings.

[0041] Finally, in order to achieve this object, it is also proposed to use a tolerance ring and / or a tolerance sleeve, in particular a shaft-hub connection, as a screw fastening for an actuating drive, in particular an end stop screw of the actuating drive according to the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The invention will now be further explained with reference to exemplary embodiments, without being restricted thereto. Further exemplary embodiments result from the combination of individual or multiple features with one another and / or with individual or multiple features of the exemplary embodiments.

[0043] In the partially schematic diagram:

[0044] Figure 1 An isometric view of an actuating drive is shown, whose actuating drive housing has a step with at least one functional surface formed thereon;

[0045] Figures 2 to 4 Shown in Figure 1 Different views of the servo drive device shown in;

[0046] Figure 5 An exploded view showing a front view of the actuating drive housing of the actuating drive shown in the previous figures, wherein the communication opening as a through-opening for the Bluetooth signal can be clearly seen here;

[0047] Figure 6 an exploded view showing a side view of the servo drive housing shown in the previous figures;

[0048] Figure 7 an exploded view showing an isometric view of the servo drive housing shown in the previous figures;

[0049] Figure 8 shows a detailed view of the servo drive housing described in the previous figures, including the communication hole, behind which the Bluetooth module, antenna and servo drive LEDs can be seen; and

[0050] Figure 9 Shown in Figures 1 to 4 8 is a partially broken away sectional view of the actuating drive device for illustrating the end stop screw and its screw fixing device in the form of a fixing sleeve. DETAILED DESCRIPTION

[0051] All figures show at least the components of an actuating drive, generally designated 1. The actuating drive 1 comprises an actuating drive housing 2, in which an actuating drive motor 3 is arranged. The actuating drive housing 2 has at least one step 4, on which a functional surface 5 is formed. In the illustrated embodiment of the actuating drive 1, two inlets 6 and 7 into the actuating drive housing 2 are formed on the functional surface 5.

[0052] The servo drive housing 2 of the servo drive 1 has three housing parts 8, 9, 10, wherein the two outer housing parts 8 and 10 are arranged offset relative to one another transversely to the axis of rotation of the servo drive motor 3 in order to form the step 4 of the servo drive housing 2. The offset of the two housing parts 8 and 10 relative to one another can be considered as the reason for forming the step 4 on the one hand and the functional surface 5 on the other hand.

[0053] The functional surface 5 is formed on a central housing part 9 of the actuating drive housing 2 and is oriented transversely to the direction in which the two remaining housing parts 8 and 10 are offset relative to one another.

[0054] The offset of the two housing parts 8 and 10 relative to one another means in the present case that the central longitudinal axes of the housing parts 8 and 10 are not arranged coinciding but offset relative to one another.

[0055] Figures 1 to 4 It is explained that the actuating drive 1 also has a handwheel 11, by means of which the actuating drive 1 can be manually operated when required. The handwheel 11 is arranged eccentrically on a further functional surface 12 formed on the lower housing part 10 of the actuating drive housing 2. The handwheel 11 has a diameter that is smaller than the maximum measurable distance between two opposite outer sides 13 and 14, between which the center of rotation of the handwheel 11 is arranged. Figure 4It is explained that the hand wheel 11 projects laterally beyond the right outer side 14 of the actuating drive housing 2 and is arranged on the end face or front side of the lower housing part 10 .

[0056] Functional elements and / or access to the actuating drive housing 2 are not formed on either the left outer side 13 or the right outer side 14 .

[0057] The servo drive motor 3 of the servo drive 1 is arranged in the upper housing part 8 and the middle housing part 9 of the servo drive housing 2 , wherein the servo drive output shaft 15 is arranged on the lower housing part 10 offset therefrom.

[0058] The servo drive motor 3 is connected to the servo drive output shaft 15 via a servo drive transmission 16. The servo drive transmission 16 extends at least partially within the central housing part 9 of the servo drive housing 2 and thereby connects the servo drive 3 in the upper housing part 8 to the servo drive output shaft 15 in / on the lower housing part 10.

[0059] The functional surface 5 formed on the step 4 is formed between the upper side 17 and the lower side 18 of the servo drive housing 2. The servo drive housing 2 has a further functional surface 19 formed on the side of the servo drive housing 2 facing away from the aforementioned upper side 17 of the servo drive housing 2. This further functional surface 19 is located on the lower rear side of the central housing part 9, that is, facing away from the step 4. This further functional surface 19 on the central housing part 9 of the servo drive housing 2 is ultimately also initially provided by the fact that the upper housing part 8 is arranged on the central housing part 9 of the servo drive housing 2 in an offset manner relative to the lower housing part 10.

[0060] The functional surface 5 and the further functional surface 19 on the step 4 of the actuating drive housing 2 face away from one another. The functional surface 5 can also be described as a functional surface that is arranged on a side of the actuating drive housing 3 that faces away from the bottom side 18 of the actuating drive housing 2. An access to the actuating drive housing 2 is formed on each of the two functional surfaces 5 and 19.

[0061] The access to the actuating drive housing 2 primarily includes a lead-through 20 for the electrical connections of the actuating drive 1 on a functional surface 19. The functional surface 19 is arranged in the axial extension of the actuating drive motor 3 and below the actuating drive motor 3.

[0062] The functional surface 5 formed on the step 4 is arranged in the axial extension of the actuating drive output shaft 15. A display device 21 of the actuating drive 1 is primarily formed thereon in the form of a position indicator.

[0063] The actuating drive housing 2 of the actuating drive 1 furthermore has a communication opening 23 as a passage opening for Bluetooth signals which are to interact with a Bluetooth module 27 of the actuating drive 1 in order to operate the actuating drive 1 .

[0064] The communication hole 23 has a maximum diameter of 30 mm, preferably 25 mm, and is closed with an observation window 25. An LED 26 is also provided in the actuating drive housing 2, the LED signal of which can be perceived through the observation window 25. The Bluetooth module 27 of the actuating drive 1, already mentioned above, is provided in the actuating drive housing 2 and behind the observation window 25. The Bluetooth module 27 is located in the central spot 24 of the projection of the communication hole 23 onto the circuit board 28 carrying the Bluetooth module 27. This is particularly effective for the use of the Figure 8 It can be seen from the diagram.

[0065] The distance between Bluetooth module 27 and communication port 23 is between 0 mm and 15 mm, preferably between 5 mm and 10 mm. LED 26 is positioned outside central spot 24 of the projection of communication port 23 onto circuit board 28. Observation window 25 is made of a scattering material, so that LED 26 and its LED signal can be easily perceived even when positioned outside central spot 24 of the projection of communication port 23 onto circuit board 28. Observation window 25 is preferably made of plastic.

[0066] A Bluetooth module 27 is mounted on a circuit board 28 using SMD technology. The Bluetooth module also has an integrated antenna 29, which is located in the central spot 24 of the projection of the communication hole 23 onto the circuit board 28, which includes the Bluetooth module 27. This facilitates Bluetooth communication with the Bluetooth module 27. The distance between the Bluetooth module 27 and the communication hole 23 is selected to be shorter than the axial length of the communication hole 23.

[0067] The servo drive 1 also has a control unit 34. The control unit 34 is designed to read and process status reports related to the servo drive 1. To output corresponding status information to a user of the servo drive 1, the LED 26 can be controlled accordingly by the control unit 34. Thus, it is conceivable that when the servo drive 1 is in a ready-to-operate state, the LED 26 emits a green light signal. If there is a malfunction in the servo drive, the LED 26 can be controlled by the control unit 34, for example, so that it flashes and / or outputs a light signal of a different color, such as red.

[0068] Figure 9The end stop screw 22 already mentioned above is shown, which serves as an end stop for the adjustment movement of the actuating drive 1 and is correspondingly adjustable. The end stop screw 22 is fixed with a force-fitting screw fastening in the form of a fixing sleeve 30. The fixing sleeve 30 is fixed with its Figure 8 In the fixing position shown in FIG, the end stop screw 22 is arranged under pressure between the outer circumference of the screw head 31 of the end stop screw 22 and the inner circumferential wall 32 of the threaded hole 33 of the actuating drive housing 2, into which the end stop screw 22 is screwed.

[0069] A tolerance ring or tolerance sleeve, such as is used in particular in shaft-hub connections, is used as the securing sleeve 30 .

[0070] The present invention relates to improvements in the technical field of actuating drives. For this purpose, actuating drive 1 is primarily proposed, whose actuating drive housing 2 has at least one step 4 on which at least one functional surface 5 is formed, including at least one inlet 6, 7 into the actuating drive housing 2.

[0071] Reference Signs List

[0072] 1 Servo drive

[0073] 2 Servo drive housing

[0074] 3 Servo drive motors

[0075] 4 steps

[0076] 5 Functional surface on the step

[0077] 6 Entrance

[0078] 7 Entrance

[0079] 8 Upper housing part

[0080] 9 Middle housing part

[0081] 10 Lower housing part

[0082] 11 Handwheel

[0083] 12 Functional surfaces on the handwheel

[0084] 13 Left side of the servo drive housing

[0085] 14 Right side of the servo drive housing

[0086] 15 Servo drive output shaft

[0087] 16 Servo drive transmission mechanism

[0088] 17 Upper side of the servo drive housing

[0089] 18 Underside of the servo drive housing

[0090] 19 Another functional surface on the middle housing part

[0091] 20 Guided by the section on 19

[0092] 21 Display device

[0093] 22 End stop screw

[0094] 23 Communication hole

[0095] 24 Central patch

[0096] 25 Observation window

[0097] 26 LED

[0098] 27 Bluetooth module

[0099] 28 circuit boards

[0100] 29 Bluetooth module antenna

[0101] 30 Fixed sleeve

[0102] 31 screw head

[0103] 32 inner wall

[0104] 33 threaded holes

[0105] 34 Control Equipment

Claims

1. A servo drive device (1), comprising: at least one upper housing part (8, 9), in which a servo drive motor (3) having a motor shaft is arranged, wherein the first longitudinal axis is defined as the axis of rotation of the motor shaft; A lower housing part (10) having a second longitudinal axis, which is defined as the axis of rotation of an servo drive output shaft (15), which is arranged in the lower housing part (10), wherein the first longitudinal axis and the second longitudinal axis are oriented parallel to each other and there is an offset between the first longitudinal axis and the second longitudinal axis, and wherein, when the upper housing part (8, 9) and the lower housing part (10) are joined together, a servo drive housing (2) comprising the upper housing part and the lower housing part is formed around the servo drive (1), - a step (4) having a first functional surface (5), wherein, when the upper housing part (8, 9) and the lower housing part (10) are joined together, the step (4) is formed integrally with the at least one upper housing part (8, 9) and is connected to an extension of the lower housing part (10) in a direction extending perpendicularly to the first longitudinal axis and the second longitudinal axis, the extension of the lower housing part extending above the output shaft (15) of the servo drive, At least one inlet (6, 7) into the actuating drive housing (2) is formed on the first functional surface (5), The first functional surface (5) is part of the actuating drive housing (2) and is provided with at least one functional element. The functional element provides a function, so that the functional surface is designed to: a) Install a position indicating device; or b) for the installation of display devices; or c) for electrical connections, or d) To provide an adjustable end stop screw (22), which limits the actuating stroke of the actuating drive (1).

2. The servo drive (1) according to claim 1, wherein: The upper housing part (8, 9) and the lower housing part (10) are arranged offset with respect to each other in order to form at least one step (4).

3. The servo drive (1) according to claim 2, wherein: The upper housing part (8, 9) and the lower housing part (10) are arranged offset to each other transversely to the rotation axis of the servo drive motor (3) in order to form the at least one step (4).

4. The servo drive (1) according to claim 2, wherein: At least one functional surface (5) is oriented transversely to the direction of the offset, and / or at least one functional surface (5) is oriented in the direction of the offset.

5. The servo drive (1) according to claim 4, wherein: At least one functional surface (5) is oriented perpendicular to the direction of the offset.

6. Actuator drive (1) according to one of claims 1 to 5, wherein: The servo drive (1) has a handwheel (11) which is arranged on at least one second functional surface (12) of the servo drive housing (2), wherein the handwheel (11) has a diameter which is at most as large as a maximum measurable distance between two opposite outer sides (13, 14), between which the center of rotation of the handwheel (11) is arranged.

7. The servo drive (1) according to claim 6, wherein: The hand wheel (11) is eccentrically arranged on a second functional surface (12) of the actuating drive housing (2).

8. The servo drive (1) according to claim 6, wherein: The hand wheel (11) has a diameter that is smaller than the maximum measurable distance between two opposite outer sides (13, 14).

9. The servo drive (1) according to claim 6, wherein: The hand wheel extends beyond one of the outer sides (13, 14).

10. The servo drive (1) according to claim 1, wherein: The servo drive motor (3) is connected to the servo drive output shaft (15) via a servo drive transmission mechanism (16).

11. The servo drive (1) according to claim 10, wherein: The servo drive transmission (16) extends from the housing part (8) containing the servo drive motor (3) to the lower housing part (10) containing the servo drive output shaft (15).

12. Actuator drive (1) according to any one of claims 1 to 5, wherein: A first functional surface (5) of the at least one functional surface is formed between an upper side (17) and a lower side (18) of the actuating drive housing (2).

13. Actuator drive (1) according to one of claims 1 to 5, wherein: The third functional surface (19) of the at least one functional surface is formed on a side of the servo drive housing (2) facing away from the upper side (17) of the servo drive housing (2); and / or the first functional surface (5) of the at least one functional surface is formed on a side of the servo drive housing (2) facing away from the lower side (18) of the servo drive housing (2); and / or the first functional surface (5) of the at least one functional surface is formed on a side of the servo drive housing (2) facing away from the side of the servo drive housing (2) from which the servo drive output shaft (15) emerges, and / or the side is arranged in the axial extension of the servo drive output shaft (15); and / or the third functional surface (19) is arranged in the axial extension of the servo drive motor (3).

14. Actuator drive (1) according to claim 13, wherein: A third functional surface (19) of the at least one functional surface comprises at least one lead-through (20) for an electrical connection.

15. The servo drive (1) according to claim 13, wherein: A first functional surface (5) of the at least one functional surface comprises at least one lead-through (20) for an electrical connection.

16. The servo drive (1) according to claim 13, wherein: The first functional surface (5) is formed with at least one display device (21) and / or at least one end stop screw (22) and / or at least one operating element.

17. The actuating drive (1) according to claim 1, comprising an actuating drive housing (2), the actuating drive housing comprising at least one communication hole (23) as a through-opening for a Bluetooth signal (24), wherein: The communication hole has a maximum diameter of 30 mm and is closed by an observation window (25), and an LED (26) is arranged in the actuating drive housing (2), the LED signal of which can be perceived through the observation window (25).

18. Actuator drive (1) according to claim 17, wherein: The communication hole has a maximum diameter of 25 mm.

19. The servo drive (1) according to claim 17, wherein: A Bluetooth module (27) is arranged behind the viewing window (25) in the actuating drive housing (2).

20. The servo drive (1) according to claim 19, wherein: The Bluetooth module (27) is arranged in a central spot area (24) of a projection of the communication hole (23) onto a circuit board (28) with the Bluetooth module (27).

21. The servo drive (1) according to claim 20, wherein: The Bluetooth module (27) is arranged at a distance between 0 mm and 15 mm in a central spot area (24) of a projection of the communication hole (23) onto a circuit board (28) carrying the Bluetooth module (27).

22. The servo drive (1) according to claim 20, wherein: The Bluetooth module (27) is arranged at a distance between 5 mm and 10 mm in a central spot area (24) of a projection of the communication hole (23) onto a circuit board (28) carrying the Bluetooth module (27).

23. The servo drive (1) according to claim 20, wherein: The LED (26) is arranged outside the projected central spot area (24).

24. The servo drive (1) according to claim 17, wherein: The observation window (25) is made of a scattering material.

25. Actuator drive (1) according to claim 24, wherein: The observation window (25) is made of plastic.

26. The servo drive (1) according to claim 19, wherein: The Bluetooth module (27) is arranged on the circuit board (28) using SMD technology, and / or the integrated antenna (29) of the Bluetooth module (27) is arranged in the central spot area of ​​the projection of the communication hole onto the circuit board with the Bluetooth module (27).

27. The servo drive (1) according to claim 19, characterized in that The distance between the Bluetooth module (27) and the communication hole (23) is selected to be smaller than the axial length of the communication hole (23).

28. The servo drive (1) according to claim 17, characterized in that The actuating drive (1) has a control device (34) which is designed to read out and process status messages of the actuating drive (1), wherein an LED (26) can be actuated by the control device (34) to output the status information.

29. Actuator drive according to one of claims 1 to 5, comprising an actuator drive housing (2), which comprises at least one adjustable end stop screw (22) as an end stop for the adjustment movement of the actuator drive (1), wherein The end stop screw (22) is fixed in a force-locking manner by means of a screw fastening in the form of a fastening sleeve (30).

30. Actuator drive (1) according to claim 29, wherein: The fixing sleeve (30) is arranged in a fixed position between the outer circumference of the screw head (31) of the end stop screw (22) and the inner circumferential wall (32) of the threaded hole (33) of the actuating drive housing (2), into which the end stop screw (22) is screwed.

31. Actuator drive (1) according to claim 30, wherein: In the fixed position, the fixing sleeve (30) is arranged under pressure between the outer circumference of the screw head (31) of the end stop screw (22) and the inner circumferential wall (32) of the threaded hole (33) of the actuating drive housing (2).

32. The servo drive (1) according to claim 29, wherein: The fixing sleeve (30) is a tolerance ring and / or a tolerance sleeve.

33. A servo drive (1) according to claim 32, wherein: The fixing sleeve (30) is a tolerance ring and / or a tolerance sleeve in a shaft-hub connection.

34. Use of a tolerance ring and / or a tolerance sleeve as a screw fastening for an end stop screw of an actuating drive according to one of claims 1 to 33.

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