DE102014011078B3 - Clamp pair, sensor attachment assembly and assembly method for building the same - Google Patents

Abstract

The present invention provides a pair of clamping plates for mounting a sensor (3) to a retaining means, a sensor mounting arrangement (1), and a mounting method for mounting the same. The clamping disk pair comprises two substantially identical clamping disks (2), wherein each of the clamping disks (2) has a clamping ring (2a) and a contact section with a contact surface (2b). In this case, the contact surface (2b) facing a clamping disk in a mounting arrangement of the contact surface (2b) of the respective other clamping disc of the pair. Each of the clamping disks (2) has a central bore (11) within the contact surface (2b). According to the invention, each of the abutment surfaces (2b) has at least one protrusion (8) and at least one recess (7) which engage in the assembly arrangement of the clamping disc pair with the elevation (8) and the recess (7) of the respective other clamping disc (2) stand.

Description

The invention relates to a clamping disk pair for mounting a sensor to a holding device, a sensor mounting arrangement and a mounting method for constructing such an arrangement.

Various mounting options for sensors, for example optical or acoustic sensors, or their housings are known from the prior art. The sensor housings are mounted and held on a suitable mounting part. For a perfect function of the sensor, it is necessary that the sensor housing is aligned and adjusted accordingly. Previously known fastening and adjustment devices use u. a. Linear guides, however, have the disadvantage that a precise angle adjustment is limited.

A possible attachment of sensor housings may be the so-called rod attachment. In this case, the sensor housing is fastened by means of various holding means on a rod. They are usually made up of several elements that require at least two fixing screws for fixing the complete system. Often these are complex fastening systems with multiple screw connections, which are difficult to assemble. The manufacturing costs of these complex fastening systems are often high.

From the DE 2 105 004 A Such a pole mount for microphones is disclosed, which clamps a rod between two clamping plates together and thereby secured. The clamping discs are connected to each other via a cylindrical sleeve. This construction is constructed of many individual parts and therefore expensive to assemble.

Furthermore, from the DE 10 2012 021 891 A1 discloses a further sensor attachment, wherein the device for fixing individual sensor housing a rod, having mutually parallel terminal discs, which are interconnected in a central region. On one side of this connection the sensor can be held and on the other side the rod can be clamped. In this case, the mutually parallel clamping disks are identical.

Out DE 19 35 977 B a clamp connector is shown with clamping plates, which have on their facing sides ribs which bear against each other in a mounting arrangement and form a counter position to the recess, in which then comes to rest a rod.

The DE 299 24 108 U1 describes holders for rods of a spindle thread, wherein L-shaped housing plates have groove-shaped recesses and corresponding webs. The latter interlock in a mounting arrangement so that when a rod is attached a rectangle is formed.

A disadvantage of the aforementioned prior art is that an assembly requires a certain amount of dexterity, since the clamping disks often rotate and occupy an unfavorable position for the assembly. Also, twisting can cause the components to be held no longer safe.

Based on this prior art, it is an object of the present invention to provide an improved pair of clamping plates, which can be assembled torsion-proof.

This object is achieved by the clamping disc pair with the features of claim 1.

The further object to provide a simple and quick to assemble, reliable sensor attachment is achieved by the sensor attachment assembly having the features of independent claim 8.

The task of constructing such a fastening arrangement quickly and easily is achieved by a mounting method having the features of claim 14.

Further developments or preferred embodiments are set forth in the subclaims.

A clamping disk pair for fastening a sensor to a holding device according to one embodiment of the invention comprises two identical clamping disks, each of the clamping disks having a clamping ring and a contact section with a contact surface. In this case, the contact surface of a clamping plate in a mounting arrangement of the contact surface of the respective other clamping disc of the pair faces. Each of the clamping disks has a central bore within the contact surface. According to the invention, each of the abutment surfaces has at least one protrusion and at least one recess, which engage in the mounting arrangement of the pair of clamping disks with the elevation and the depression of the respective other clamping disk.

The clamping discs are essentially identical. "Essentially" in the sense of the invention means that each of the clamping disks has the most important features, as they are also described below. So each clamping disc has one Center hole, a clamping ring and a contact section with a recess and a survey. Furthermore, a device may be provided which is designed to comprise a fastening means, such as a rod. This ensures that the two clamping discs can be made in the same way and basic shape, and thereby the production costs are minimized. Slight deviations, such as additional holes or markings, may also be present only on individual clamping disks. Preferably, the clamping disks can be produced by injection molding, for example, from aluminum or other sprayable metals, metal alloys or plastics. Advantageously, a single injection molding tool can be provided in production engineering, so that each clamping disk can be produced in the same tool. In this case, all sections, regions and features (also as described below) of each clamping disc can be provided in the injection mold. When manufacturing a large amount of clamping discs thus easily two clamping discs can be selected from the production amount and used for a mounting arrangement randomly. A distinction between a "left" and a "right" clamping disc is no longer necessary because the discs are identical.

The recess and the corresponding elevation may preferably be frusto-conical. However, other shapes such as hemispheres or cubes or similar shapes that are suitably easy to manufacture in manufacturing are possible.

Due to the specific embodiment of the depression or elevation, the two clamping disks can be placed in a mounting arrangement against or against one another such that one depression engages with an opposite elevation and vice versa. As a result, an anti-rotation is achieved so that there is only one specific position in which the two clamping plates can be placed together. An additional alignment of the clamping plates and thus unstable assembly to a mounting arrangement can thus be omitted.

The abutment portion of the clamping plates is designed as an increase to the clamping ring, wherein as geometric basic form of the contact portion may be substantially frusto-conical or cylindrical. The center hole is formed continuously through this contact section.

Preferably, the invention provides that the elevation and depression of each of the clamping discs are opposite each other on the contact surfaces with respect to the central bore. This ensures that the survey / depression above or below or left or right, depending on the view of the clamping disc is arranged. This ensures a particularly simple and twist-proof assembly.

In a further development, the invention can provide that both clamping disks have opposite circular arc-shaped webs along a part of the circumference of the clamping ring. "Webs" within the meaning of the invention are elevations extending axially from a clamping ring plane away from this and are predefined in their height. In a cross section they are triangular, semicircular or have another simple geometric cross section. The said webs can engage in the mounting arrangement of the clamping disk pair in a corresponding groove of a sensor housing and thus provide for improved clamping or mounting of the housing.

Furthermore, according to the invention, a cross section of the central bore can be enlarged in a section which adjoins the side of each clamping disk facing away from the contact surface. The enlargement of the cross section is not continuous, but stepped. In this case, the cross section of the enlarged portion may be preferably polygonal, d. H. quadrangular, hexagonal, octagonal etc. It is particularly preferred that in this polygonal section a corresponding polygonal nut can be accommodated. For example, nuts in DIN standard size M5 or M6 can be used, but other sizes are also possible, for which purpose the section only has to be dimensioned in this size. For reasons of production engineering, small gradations which produce a minimal skew may occur in the transition between the polygonal section and the central bore. As a result, in this transition region, the diameter can be smaller than the diameter of a nut, whereby an inserted nut can be clamped or wedged. This can be done by the polygonal shape of the section a rotation and the transition of the section to the center hole fixing the mother, the mother can be easily used in this section and no longer needs to be kept separate as soon as the pair of clamping disc is screwed together.

In a development of the invention, it is provided that the clamping disks can each have a circular chord-shaped recess on their mutually facing sides. This is designed to include a round or square bar. Each clamping disc has such a profiling, so that different bar profiles, whether round, angular or otherwise polygonal, can be half covered by the recess. The rod can be so in one Mounting arrangement of the clamping plate pair are completely clamped.

The invention may provide that each clamping disc has at its peripheral edge a projection which extends radially away relative to the central bore and which extends so far out of the clamping ring plane with respect to the clamping ring plane that its edge is flush with the abutment surface. According to the invention, in the mounting arrangement of the clamping disk pair, the projections of a pair of clamping disks abut each other and form a clamping element. A rod can thus be safely included, and the supernatants can serve as a stop or abutment, for example, in a wall glands. The clamping discs can then not tilt against each other in this area.

Further, the invention may provide that the clamping disc has a scale which is mounted along a peripheral portion of a disc rim. Preferably, notches are notched so that the scale is formed from these notches. The notches are not parallel to each other, but tend from a lower end of the scale starting upwards along the circumference of the disc edge to an upper end of the scale in the direction of the disc edge. This scale also allows alignment of the sensor housing to be installed in a mounting arrangement. The direction of the notches also indicates the direction of the housing. The adjustment of a sensor housing to be installed is thereby substantially facilitated.

However, in order to obtain the possibility not only to include a rod by means of the pair of clamping disks, but also to use other holding means, each pair of clamping disks can be fastened via the central bore to a planar holding device, in particular a wall, etc.

In a development of the invention, it is provided that each clamping disk can have an eccentric bore for fastening the clamping disk to a planar holding device. The eccentric bore to the central axis of the clamping plate is arranged in a portion of the circular chord-shaped recess and can serve for additional assurance of an inserted rod. For this purpose, a maggot or simple clamping screw can be screwed into the eccentric bore and the rod are secured non-slip.

In a sensor mounting arrangement of an embodiment according to the invention, the arrangement comprises a sensor, a holding device and a clamping disk pair, as described above. In this case, the sensor has a housing which has a width which substantially corresponds to a distance of the clamping rings in a mounting arrangement of the clamping plate pair, so that clamped in an assembly order, the housing of the sensor on one side between the clamping rings of the two clamping discs of the pair of clamping plates and with the Holding device is connected.

In this way, a sensor is very easy to attach to a holding device, with a quick and easy installation can be done. In addition, the clamping plates are inexpensive to produce by their simple structure, which makes the entire bracket cost.

According to the invention it can be provided that the holding device is a rod with an angular or round cross section. Due to the fact that the clamping disks each have profiles for different cross-sectional shapes of rods, the application has fewer limits. Alternatively it can be provided that the holding device is a flat surface, in particular a wall. For this purpose, the clamping plates can be screwed with placed between the sensor housing by means of a screw through the central bore on the holding device. Depending on the application, the fastening arrangement can thus be adapted to the external conditions.

Preferably, it can also be provided in the invention that the housing of the sensor has an arcuate groove on two side surfaces. Here, the groove in an assembly order of the sensor between the clamping plates with the arcuate webs of both clamping discs are engaged and form a rotatably mounted tongue and groove connection. The advantage here is that the sensor housing can be easily adjusted, moved and adjusted.

Furthermore, the housing of the sensor can be aligned with the scale and the orientation of its scale sections at a certain angle relative to a longitudinal axis of the holding device. The scale subdivision here is notch-shaped, as has already been described above. Due to the inclination of the notches, the housing or a housing edge can be easily moved and aligned with the direction of the notches, since the stroke of the notches is ideally aligned with the edge of the housing. The angular range covering the scale can be formed in a range of 0 ° to 100 °, in particular up to 90 °. In one embodiment, the scale is divided so that a zero position is in the middle of the scale, and each two angular ranges, a positive and a negative angle range, extend along the circumference of the zero position in each case in the opposite direction. Thus, preferably, an angular range in a range of -45 ° to + 45 ° may be provided. A Scale division can be done in 10 ° or 5 ° increments. However, finer or coarser scale graduations are also possible. The scale may be directed outward in a mounting arrangement for easy viewing.

In order to connect the clamping disks in one in the mounting arrangement, it is provided that the clamping disks can be connected to each other via the central bore by a screw. This allows easy installation without further screwing.

A possible mounting of the sensor attachment arrangement can proceed as follows:
The two clamping disks of the pair of clamping disks are placed against their contact surfaces corresponding to one another, and a nut is inserted into the polygonal section and, for example, held lightly by means of a finger. Due to the polygonal design of the section, the nut is torque-locked so that a screw can be made from the other side of the pair of clamping plates through the central bore and easily tightened with the nut.

A rod may include or inserted at this stage in the profiled recesses. The pair of clamping disks is not yet firmly screwed together, but still held so loosely that the clamping rings can be performed with their arcuate webs on the side edge of the housing of the sensor. The discs are slightly pushed apart and are brought with their arcuate ridge in the corresponding arcuate groove of the housing in engagement. Thereafter, the retaining screw, which is passed through the pair of clamping disc, tightened or -rotreht and fix the mounting assembly so.

The sequence of the individual steps of the assembly process can be adjusted depending on the application. Thus, first, the tongue and groove connection between the housing and clamping plates can be made or first a rod with the clamping plates are included.

By slightly loosening the screw can be achieved that the entire arrangement can be moved linearly on the rod. Care should be taken to ensure that the fitting is not over-tightened so that the sensor is still easy to move.

Other embodiments as well as some of the advantages associated with these and other embodiments will become apparent and better understood by the following detailed description with reference to the accompanying drawings. Items or parts thereof that are substantially the same or similar may be provided with the same reference numerals. The figures are merely a schematic representation of an embodiment of the invention.

Showing:

1 a perspective view of a sensor mounting arrangement according to the invention,

2 a perspective view of an alternative sensor attachment assembly,

3 a front view of a clamping disc according to the invention,

4 one too 3 90 ° tilted side view of the clamping disc,

5 a perspective view of the side of a plant section of the clamping disc,

6 a rear perspective view 5 the clamping disc,

7 a side view of the arrangement with a tilted sensor housing in a first orientation, and

8th a side view of the arrangement with the tilted sensor housing in a second orientation.

In 1 and 2 is in each case a sensor attachment arrangement according to the invention 1 shown with a pair of clamping disks, the two clamping disks 2 , a sensor 3 with a housing and a holding device 4 exhibit. The holding device 4 can be either a round rod or a cross-sectionally square or rectangular rod 4 be.

The 3 to 6 show different views of a clamping disc 2 :
It consists essentially of two sections, one as a clamping ring 2a serving section, as well as an abutment section with a contact surface 2 B , This contact surface 2 B defines the surface on which two clamping disks 2 , if they are in the mounting arrangement, touch or touch.

The clamping ring 2a has a circular arc-shaped bridge 6 on, in a circular arc-shaped corresponding groove (not shown figuratively) in the sensor housing of the sensor 3 can intervene, as well 1 . 2 . 7 and 8th suggest. The height of the circular arched bridge 6 is tuned to a depth of the groove (figurative not shown) of the sensor housing. Also, the height of the abutment portion and the width of the clamping ring 2a so dimensioned that in the mounting arrangement the entire width of the sensor 3 can be included or pinched. Depending on the width of the sensor housing, therefore, the dimension of the terminal discs 2 be made varied.

In the axial direction, a central bore extends 11 through which both clamping disks 2 with each other by a screw 14 can be connected. Furthermore, over the center hole 11 a juxtaposed pair of clamping plates are also screwed to a plane holding device, such as a wall or the like. In certain applications can thus be dispensed with a separate rod holder.

To the screw 14 simply screwing in is in a mounting arrangement on the outwardly facing surface of the clamping disc 2 for torque fixation a polygonal section 13 intended. this section 13 closes as a section of the center hole 11 to the same, wherein the cross section of the central bore 11 in this section is just enlarged. In 3 and 6 is shown that the section 13 Hexagonal is, so that this can accommodate a hexagonal mother in the appropriate size. Therefore, a mother no longer needs to be held in a different way.

It also shows how the 4 and 5 show the contact surface 2 B next to the center hole 11 a survey 8th and a recess 8th on. These lie on the contact surface 2 B relative to the center hole 11 across from. The depression 7 and corresponding survey 8th are frustoconical in the figures. In a mounting arrangement, when the contact surfaces 2 B abutting each other, the survey picks up 8th in the corresponding recess 7 and vice versa. As a result, an effective rotation is achieved.

Furthermore, the clamping disc 2 a profiled recess 9 on, which is like a circle between the clamping ring 2a and the contact surface 2 B extends. The profile of this recess 9 is in the sectional view of 4 essentially semicircular. On the other hand, angular profiling is incorporated, so that in addition to a round bar 4 also square bars 4 as it is in 2 shown can be used. The dimensions of the recess 9 are to be dimensioned so that once two clamping washers 2 be put together, the rod 4 is included in its entirety. Thus, every single recess has 9 the dimension of half the circumference of the bar used in each case 4 , In this recess 9 arranged is also an eccentric bore 12 , This serves that a rod can be additionally secured by inserting a suitable clamping screw.

Each clamping disc 2 further includes a circumferentially extending radially overhang 10 on. This limits the recess 9 to one of the clamping ring 2a opposite side and can serve as a stop. In a mounting arrangement of the clamping disc pair these projections are 10 with their facing surfaces and form a clamping element. A pole 4 can thus be reliably recorded. The supernatants 10 also prevent the clamping discs 2 in a wall mounting successfully tilt each other.

Furthermore, the clamping disc 2 a scale 5 on, extending along a peripheral portion of a disc edge of the clamping disc 2 extends. The scale 5 has different scale sections, which is formed by means of notch-shaped devices. These notches are not parallel to each other, but tend to start from a lower end of the scale 5b up to an upper scale end 5a in the direction of the disk edge.

As in 3 is shown, is a so-called zero position in the middle of the scale 5 intended. To the left and right of this zero position extends along the circumference of the disc edge, the scale 5 up to a 40 ° mark in 5 ° increments. In this case, an angular range of a total of 80 ° of the scale can be covered. A pinched between the pair of discs sensor housing can be aligned according to this scale so that no further adjustment in relation to the angle to be set is more necessary. For example, the orientation of the notch in a neutral position is exactly normal to the ground. Thus, this zero position also corresponds to an exact normal orientation of the sensor 3 in the mounting arrangement. The same applies to the other scale sections that form certain angles.

The 7 and 8th each show a housing of the sensor 3 in a maximum positive (+ 40 °) and maximum negative (-40 °) angular position. It is easy to see that the alignment of the notch at the 40 ° mark with the edge of the housing of the sensor 3 flees.

LIST OF REFERENCE NUMBERS

1

Sensor mounting assembly

2

clamping disc

2a

clamping ring

2 B

contact surface

3

sensor

4

pole

5

scale

5a

Upper scale end

5b

Lower scale end

6

Circular arched bridge

7

deepening

8th

survey

9

recess

10

Got over

11

center bore

12

Eccentric hole

13

Polygonal section

14

screw

R

edge

Claims (14)

Pair of clamping disks for fastening a sensor to a holding device, comprising two identical clamping disks ( 2 ), each of the clamping discs ( 2 ) a clamping ring ( 2a ) and a contact section with a contact surface ( 2 B ), wherein the contact surface ( 2 B ) of a clamping disc ( 2 ) in a mounting arrangement of the contact surface ( 2 B ) of the other clamping disc ( 2 ) of the pair, and wherein each of the clamping discs ( 2 ) within the contact surface ( 2 B ) a central bore ( 11 ), characterized in that each of the contact surfaces ( 2 B ) at least one survey ( 8th ) and at least one depression ( 7 ), in the mounting arrangement of the clamping disc pair with the survey ( 8th ) and the depression ( 7 ) of the other clamping disc ( 2 ) are engaged. Clamping disk pair according to claim 1, characterized in that the survey ( 8th ) and deepening ( 7 ) each of the clamping discs ( 2 ) each other on the contact surfaces ( 2 B ) with respect to the center hole ( 11 ) are opposite. Pair of clamping disks according to claim 1 or 2, characterized in that both clamping disks ( 2 ) along a part of the circumference of the clamping ring ( 2a ) opposite circular arc-shaped webs ( 6 ) exhibit. Clamping disk pair according to at least one of claims 1 to 3, characterized in that the cross section of the central bore ( 11 ) in a section ( 13 ) to the side of each clamping disc ( 2 ) adjacent to the contact surface ( 2 B ), the cross-section of the section (FIG. 13 ) is preferably polygonal. Clamping disk pair according to at least one of claims 1 to 4, characterized in that the clamping disks ( 2 ) on their mutually facing sides in each case a circular chord-shaped recess ( 9 ), which is adapted to a round or a square bar ( 4 ). Clamping disk pair according to at least one of claims 1 to 5, characterized in that each clamping disc ( 2 ) at its peripheral edge a supernatant ( 10 ) which extends radially with respect to the central bore and which extends so far out of the clamping ring plane with respect to the clamping ring plane that its edge (R) with the contact surface ( 2 B ) is aligned, and wherein in the mounting arrangement of the clamping plate pair, the supernatants ( 10 ) abut a pair of clamping discs against each other and form a clamping element. Clamping disk pair according to at least one of claims 1 to 6, characterized in that the clamping disk ( 2 ) a scale ( 5 ), which is mounted along a peripheral portion of a disc edge, wherein the scale ( 5 ) is formed of notches that are not parallel to each other, but from a lower scale end ( 5b ) starting at the top to an upper scale end ( 5a ) tilt in the direction of the disk edge. Clamping disk pair according to at least one of claims 1 to 7, characterized in that each clamping disc ( 2 ) an eccentric bore ( 12 ) for fastening the clamping disc ( 2 ) has a planar holding device. Sensor attachment arrangement ( 1 ), comprising a sensor ( 3 ), a holding device and a clamping disk pair according to at least one of claims 1 to 8, wherein the sensor ( 3 ) has a housing having a width which is substantially a distance of the clamping rings ( 2a ) in a mounting arrangement of the pair of clamping plates, so that in the mounting arrangement, the housing of the sensor ( 3 ) on one side between the two clamping disks ( 2 ) of the clamping disk pair is clamped and connected to the holding device. Sensor attachment arrangement ( 1 ) according to claim 9, characterized in that the holding device is a rod ( 4 ) with an angular or round cross-section or a plane surface, in particular a wall. Sensor attachment arrangement ( 1 ) according to claim 9 or 10, characterized in that the housing of the sensor ( 3 ) has in each case on two side surfaces a circular arc-shaped groove, wherein the groove in the mounting arrangement of the sensor ( 3 ) between the clamping discs ( 2 ) with the arcuate webs ( 6 ) of both clamping disks ( 2 ) engages and forms a rotatably mounted tongue and groove connection. Sensor attachment arrangement ( 1 ) according to claim 11, characterized in that the housing of the sensor ( 3 ) on the scale ( 5 ) and the Alignment of their notched scale graduation in a certain angle relative to a longitudinal axis of the holding device can be aligned. Sensor attachment arrangement ( 1 ) according to at least one of claims 9 to 12, characterized in that in the mounting arrangement the clamping discs ( 2 ) by a screw ( 14 ) are interconnected. Assembly method for constructing a sensor mounting arrangement according to at least one of claims 9 to 13, comprising a sensor ( 3 ), a pole ( 4 ) and a clamping disk pair according to at least one of claims 1 to 8, comprising the following steps: - placing the two clamping disks together ( 2 ) of the clamping disk pair at their contact surfaces ( 2 B ); Inserting a nut in the polygonal section ( 13 ) one of the two clamping disks ( 2 ); - Inserting a retaining screw ( 14 ) through the central bore of the other clamping disc ( 2 ) and engaging the screw ( 14 ) with the thread of the nut; - Inserting the housing of the sensor ( 3 ) and engaging the circular webs ( 6 ) of the clamping disks ( 2 ) with the circular groove of the housing and forming a tongue and groove connection; Inserting a rod into the recess ( 9 ), and - tightening the retaining screw ( 14 ) for fixing the mounting arrangement.

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