DE202013004479U1 - Fixing device for a 3D measuring device - Google Patents

Abstract

Fastening device (1) for a 3D measuring device (2) with a projector (8), a camera (9) and a carrier (10), characterized by a holder (15) in which the carrier (10) is about an axis ( 18) is mounted rotatably and lockable, an intermediate bracket (16) in which the bracket (15) is rotatably and lockably mounted about an axis (19), and an end bracket (17) in which the intermediate bracket (16) is mounted about an axis (20) is rotatable and lockable.

Description

The invention relates to a fastening device for a 3D measuring device and a 3D measuring unit, which comprises such a fastening device and a 3D measuring device.

3D measuring devices are already known. They are used to determine the 3D coordinates of the surface of an object.

A previously known 3D measuring device includes a projector, a camera and a carrier. The projector and the camera are at a distance from each other. They are connected by the carrier.

The 3D measuring device can in particular be mounted on a building wall, a frame, a device or on a tripod. In practice, it is desirable to be able to variably position and align the 3D measuring device.

The object of the invention is to propose a variable fastening device for a 3D measuring device of the type specified.

According to the invention this object is achieved by a fastening device with the characterizing features of claim 1. The fastening device comprises a holder, an intermediate holder and an end holder. In the holder, the support of the 3D measuring device about an axis (support axis) is rotatably mounted and lockable. In the intermediate holder, the holder about an axis (Zwischenhalterungsachse) is rotatably mounted and lockable. In the end bracket, the intermediate support about an axis (Endhalterungsachse) is rotatably mounted and lockable. Due to the three-axis adjustability, the fastening device can be used variably.

The projector of the 3D measuring device usually comprises a light source, an optic and a pattern generator for generating a pattern to be projected onto the object, in particular a stripe pattern or a stochastic pattern. The camera usually comprises an optical system and an image sensor with planar regularly arranged pixels, in particular a CCD sensor or CMOS sensor. The camera is aligned with the area of the object on which the pattern generator projects the pattern. The 3D measuring device can have further components, in particular a computer, a memory and / or a device for data reception and / or for data transmission.

Advantageous developments of the invention are described in the subclaims.

The holder may have a pivotable and lockable flap. To connect the 3D measuring device to the fastening device, the carrier of the 3D measuring device is inserted into the opened holder. Thereafter, the flap of the holder is pivoted into the closed position and locked there.

The flap is preferably lockable by a spring clip.

According to a further advantageous embodiment, the carrier is rotatably mounted in the holder by rollers. As a result, the friction during adjustment of the carrier can be reduced.

It is advantageous if the carrier is mounted in the holder by a lever adjustable and / or lockable by a clamping shoe. The lever allows one-handed operation.

The holder is preferably mounted in the intermediate holder by a journal bearing. The pin may be in the intermediate bracket and the associated socket may be located in the bracket. However, it is also possible that the pin is in the holder and the associated socket in the intermediate bracket.

It is advantageous if the holder is mounted in the intermediate holder by a lever adjustable and / or lockable by a jaw. The lever allows one-handed operation.

The lever can engage in a locking groove which is provided in a journal of the journal bearing. As a result, the holder can be secured against falling out.

The end bracket is advantageously designed as a fork.

It is advantageous if the intermediate holder is mounted lockably in the end holder by a clamping lever and / or by at least one friction disc. By the clamping lever, a one-hand operation can be enabled.

According to a further advantageous embodiment, the axis of the holder and the axis of the intermediate holder and the axis of the end bracket extend perpendicular to each other. The axes of the holder and the intermediate holder can, at least in the starting position, run horizontally. The axis of the end bracket can be vertical.

The invention further relates to a 3D measuring unit, which is a 3D measuring device of the specified type and a fastening device according to the invention comprises.

An embodiment of the invention will be explained below with reference to the accompanying drawings in detail. In the drawing shows

1 a tripod, a fastening device and a 3D measuring device in a perspective view,

2 the fastening device and the 3D measuring device in an enlarged perspective view,

3 the fastening device and the 3D measuring device, wherein the flap of the holder is pivoted into the open position, before inserting the carrier of the 3D measuring device into the holder,

4 the fastening device and the 3D measuring device after inserting the carrier of the 3D measuring device into the holder,

5 the fastening device with flap pivoted into the open position of the holder,

6 the fastening device according to 5 with flap pivoted into the closed position of the holder and with pivoted intermediate holder,

7 the fastening device in 6 with swivel mount,

8th the fastening device in an exploded view,

9 the fastening device in a side view, partially in section and

10 a further partial sectional view of the fastening device.

1 shows a fastening device 1 , on a 3D measuring device 2 is attached. The fastening device 1 is with a tripod 3 connected, that one foot 4 and a vertical stand rod 5 along which a tripod guide 6 is guided longitudinally displaceable and lockable. With the tripod guide 6 is a tripod pole 7 connected, which runs in the horizontal direction and at the end of a tripod adapter 8th' is appropriate.

The 3D measuring device 2 includes a projector 8th and a camera 9 by a carrier 10 connected to each other. The projector 8th is in a projector module 11 accommodated. It includes an optic 12 , a light source and a pattern generator (not shown in the drawing). The camera 9 is in a camera module 13 accommodated. It includes an optic 14 and an image sensor (not shown in the drawing).

The fastening device 1 includes a bracket 15 , an intermediate bracket 16 and an end bracket 17 ,

In the holder 15 is the carrier 10 around an axis 18 mounted rotatable and lockable. The axis 18 runs horizontally when the fastening device 1 is in the starting position, the in 5 is shown. The holder 15 is in the intermediate bracket 16 around an axis 19 mounted rotatable and lockable. The axis 19 runs in a horizontal direction. It runs perpendicular to the axis 18 , The intermediate bracket 16 is in the end bracket 17 around an axis 20 mounted rotatable and lockable. The axis 20 runs in the vertical direction.

The holder 15 has a pivotable and lockable flap 21 on. When the fold 21 is in the open position, the in 3 . 4 and 5 shown can be the carrier 10 in the holder 15 be inserted. After that, the flap 21 pivoted and closed with it. The holder 15 has a substantially cylindrical inner surface. The carrier 10 has a corresponding cylindrical outer surface.

To lock the flap 21 is the holder 15 with a spring clamp 22 Mistake. The spring clamp 22 has a lead 23 on, which is spring-mounted. The flap 21 has a nose at the end 24 on. If the flap 21 closed, presses the nose 24 the lead 23 elastic to the side. After the passage of the nose 24 at the projection 23 the projection moves 23 elastic back. He reaches over his nose 24 making the flap 21 secured against opening and the carrier 10 is secured against falling off. Then the flap 21 through the clamping screw 25 of the spring clamp 22 with the carrier 10 tensed and fixed.

In the cylindrical inner surface of the holder 15 are roles 26 rotatably mounted, in the inner surface of the holder 15 protrude. The surfaces of the rollers 26 correspond to the cylindrical outer contour of the carrier 10 , The roles 26 are in the holder 15 supported by rolling bearings, in particular ball bearings. They are arranged in two rows next to each other. Through the roles 26 is the cylindrical carrier 10 in the holder 15 rotatably mounted with low friction.

In the holder 15 is a circumferential slot 27 provided in which a lever 28 with a handle 28 ' is slidably mounted. The end of the lever 28 engages in an associated, provided with an internal thread recess 29 in the peripheral surface of the carrier 10 one. By adjusting the lever 28 along the circumferential slot 27 can the carrier 10 around the axis 18 be pivoted. The maximum Verschwenkweg corresponds to the length of the circumferential slot 27 , It is about 100 °. The Verschwenkweg can by converting the end of the lever 28 in other recesses in the peripheral surface of the carrier 10 , which are arranged at a corresponding angular distance can be increased.

At the lever 28 is a clamp shoe 30 intended. When the end of the lever 28 into the depression 29 The clamping shoe is screwed in 30 with the outer peripheral surface of the holder 15 in a jamming connection, causing the wearer 10 in the holder 15 is locked. The lever 28 allows one-handed operation.

The holder 15 is in the intermediate bracket 16 through a journal bearing 31 stored. The pin holder 31 consists of a pin 32 the intermediate bracket 16 and a corresponding socket 33 the holder 15 ,

In the cones 32 is a safety groove 34 incorporated. The safety groove 34 is designed as a circumferential groove. In the holder 15 is a jaw 35 arranged, which has an internal thread into which an external thread 36 engages, located at the end of a second lever 37 which is a handle 37 ' having. The second lever 37 is a passage opening 38 in the holder 15 stored. The jaw 35 surrounds a part of the pin 32 ,

For mounting the bracket 15 with the intermediate bracket 16 first becomes the second lever 37 removed, as in 8th shown. In this position, the pin 32 in the socket 33 brought in. Subsequently, the lever 37 in the passage opening 38 plugged. He is then in a part of the Sicherungsnut 34 , This is the connection of the bracket 15 with the intermediate bracket 16 secured. In the not yet locked position, the bracket 15 opposite the intermediate bracket 16 around the axis 19 be pivoted. When the desired pivot position is reached, the lever becomes 37 with its external thread 36 completely in the internal thread of the jaw 35 screwed. This will make the jaw 35 with the outer surface of the pin 32 jammed. The holder 15 is characterized by the intermediate bracket 16 locked. For further adjustment, the lever 37 solved, the holder 15 pivoted and the lever 37 then screwed again. The lever 37 allows one-handed operation.

The end bracket 17 is as a fork 40 educated. It includes a base plate 41 , at the two mutually parallel, spaced-apart, pointing in the same direction holding discs 42 are arranged. The holding disks 42 take between them the Zwischenhalterung 16 on. In the holding disks 42 are aligned through holes available. In a similar way, the intermediate bracket 16 a through hole on. The through holes are from the bolt 43 a clamping lever 44 penetrated. The clamping lever 44 has at one end, in particular at its upper end, a handle 45 on. At its other, especially lower end is the bolt 43 with an external thread 46 provided in an internal thread in a retaining washer 42 intervenes. Between this holding disc 42 and the intermediate bracket 16 is a friction disk 47 arranged. Another friction disc 47 is between the intermediate bracket 16 and the other retaining disc 42 arranged.

If the bolt 43 in the thread of the retaining washer 42 screwed in, is the intermediate bracket 16 in the end bracket 17 secured. It can be around the vertical axis 20 be pivoted to the desired position. For locking the intermediate bracket 16 becomes the handle 45 operated, causing the external thread 46 of the bolt 43 continue with the internal thread of the retaining washer 42 is screwed. This will be the friction disc 47 jammed, and the rotational position of the intermediate bracket 16 in the end bracket 17 will be locked.

The end bracket 17 is with the tripod adapter 8th' connected. The tripod adapter 8th' lies on the base plate 41 the end bracket 17 on whose holding disks 42 on the opposite side. He is with the end bracket 17 releasably connected. The detachable connection is made by screws 50 in the base plate 41 , By replacing the tripod adapter 8th' can the fastening device 1 be adapted to the respective existing mounting option (tripod, wall, frame, etc.), without any change in the fastening device 1 is required.

The axis 18 can be called the tilt axis, the axis 19 as a rotation axis and the axis 20 as a swivel axis.

Claims (12)

Fastening device ( 1 ) for a 3D measuring device ( 2 ) with a projector ( 8th ), a camera ( 9 ) and a carrier ( 10 ), characterized by a holder ( 15 ) in which the wearer ( 10 ) about an axis ( 18 ) is rotatably mounted and lockable, an intermediate bracket ( 16 ), in which the holder ( 15 ) about an axis ( 19 ) is rotatably mounted and lockable, and an end bracket ( 17 ), in which the intermediate support ( 16 ) around an axis ( 20 ) is rotatably mounted and lockable. Fastening device according to claim 1, characterized in that the holder ( 15 ) a pivotable and lockable flap ( 21 ) having. Fastening device according to claim 2, characterized in that the flap ( 21 ) by a spring clip ( 22 ) is lockable. Fastening device according to one of the preceding claims, characterized in that the carrier ( 10 ) in the holder ( 15 ) by rolling ( 26 ) is rotatably mounted. Fastening device according to one of the preceding claims, characterized in that the carrier ( 10 ) in the holder ( 15 ) by a lever ( 28 ) adjustable and / or by a clamping shoe ( 30 ) is mounted lockable. Fastening device according to one of the preceding claims, characterized in that the holder ( 15 ) in the intermediate holder ( 16 ) by a journal bearing ( 31 ) is stored. Fastening device according to one of the preceding claims, characterized in that the holder ( 15 ) in the intermediate holder ( 16 ) by a lever ( 37 ) adjustable and / or by a jaw ( 35 ) is mounted lockable. Fastening device according to claim 7, characterized in that the lever ( 37 ) in a securing groove ( 34 ) in a journal ( 32 ) the journal bearing ( 31 ) intervenes. Fastening device according to one of the preceding claims, characterized in that the end holder ( 17 ) is designed as a fork. Fastening device according to one of the preceding claims, characterized in that the intermediate holder ( 16 ) in the end bracket ( 17 ) by a clamping lever ( 44 ) adjustable and / or by at least one friction disc ( 47 ) is mounted lockable. Fastening device according to one of the preceding claims, characterized in that the axis ( 18 ) of the holder ( 15 ) and the axis ( 19 ) of the intermediate support ( 16 ) and the axis ( 20 ) of the end bracket ( 17 ) are perpendicular to each other. 3D measuring unit, comprising a 3D measuring device ( 2 ) with a projector ( 8th ), a camera ( 9 ) and a carrier ( 10 ) and a fastening device ( 1 ) according to one of claims 1 to 11.

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