CN217402166U

CN217402166U - Arbitrary inclination attitude measuring device of laser tracker

Info

Publication number: CN217402166U
Application number: CN202221345489.2U
Authority: CN
Inventors: 范百兴; 段童虎; 黄赫; 李丛; 陈哲; 邹方星; 徐福乾
Original assignee: Information Engineering University of PLA Strategic Support Force
Current assignee: Information Engineering University of PLA Strategic Support Force
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-09-09
Anticipated expiration: 2032-05-31

Abstract

The utility model relates to an arbitrary slope gesture measuring device of laser tracker belongs to laser tracker and measures technical field. The measuring device comprises a supporting seat and a speed reducer, wherein an input shaft is arranged at the input end of the speed reducer, and a driving piece is connected to the input shaft; a rotating shaft is arranged on the supporting seat, and the output end of the speed reducer is connected with the rotating shaft; the mounting seat is arranged on the rotating shaft and comprises a mounting plate, and a fixing structure for fixing the laser tracker is arranged on the mounting plate; be equipped with on the supporting seat and rotate the locking structure who targets in place the back and carry out the locking to it at the pivot. The utility model discloses can realize the three-dimensional coordinate of laser tracker measurement space point under perpendicular, slope, horizontality, be the basis device of research laser tracker arbitrary slope position appearance measurement. Based on the device, relevant experiments can be developed, the feasibility and the measurement precision of the laser tracker in any inclined posture measurement can be researched, a theoretical system in the field is perfected, the practical engineering problems such as ultra-deep narrow shaft connection measurement are solved, and the working efficiency is improved.

Description

Arbitrary inclination attitude measuring device of laser tracker

Technical Field

The utility model relates to an arbitrary slope gesture measuring device of laser tracker belongs to laser tracker and measures technical field.

Background

Laser trackers are high-precision large-size flexible coordinate measurement systems that have been developed over the last several decades. The device integrates a laser ranging technology, a grating angle measuring technology, a precision mechanical technology, an automatic control technology and a modern numerical calculation theory, can track and accurately position a target in real time, has the advantages of high measurement precision, wide measurement range, dynamic measurement, portability and the like, and is widely applied to the fields of industrial measurement and manufacturing such as aerospace, shipbuilding, rail transit and the like.

In most precision engineering and industrial measurement, measurement data is often required to be reduced to a level surface reference, or the measurement data is required to be reduced to a theodolite or total station coordinate system which takes the level surface as the reference, at the moment, a laser tracker is often subjected to strict leveling through an internal or external electronic leveling bubble, or the laser tracker is subjected to small-angle measurement of inclination, and currently, a commonly used measurement means comprises that the instrument is erected on an industrial tripod or a forced centering device to perform leveling measurement or small-angle inclination measurement.

In practical measurement, certain measurement environments cannot provide a strict leveling condition for an instrument, or the instrument cannot be seen through a target point during leveling measurement, or the vertical angle observed by the target point is too large, so that the precision is seriously influenced, for example, in special engineering measurement such as connection measurement of an ultra-deep narrow shaft with the depth of 762.59m and the inner diameter of only 6m, if a laser tracker is used for carrying out three-dimensional coordinate transmission, the situation that the precision is reduced or even the measurement cannot be carried out due to the fact that the vertical angle is too large occurs, and therefore a new measurement mode is urgently needed to break through the bottleneck of the traditional measurement.

Theoretically, the laser tracker can measure the three-dimensional coordinates of a space point in vertical, inclined, horizontal and even inverted states, the research on the field is less at home and abroad at present, and a device capable of supporting the laser tracker to measure in any inclined posture is the basis of developing the research on the field, so that a device for measuring any inclined posture of the laser tracker needs to be developed, the feasibility and the measurement precision of the laser tracker in any inclined posture can be further researched, and the theoretical system of measuring any inclined posture of the laser tracker is perfected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a laser tracker arbitrary slope gesture measuring device to solve among the prior art and not have suitable measuring device adjustment laser tracker arbitrary slope gesture, and then unable research laser tracker at the feasibility of arbitrary slope gesture measurement and measurement accuracy's problem.

In order to achieve the above object, the utility model provides a laser tracker arbitrary slope gesture measuring device adopts following technical scheme:

the arbitrary inclination attitude measuring device of the laser tracker comprises a supporting seat and a speed reducer arranged on the supporting seat, wherein an input shaft is arranged at the input end of the speed reducer, and a driving piece for driving the input shaft to rotate is connected to the input shaft; the support seat is also rotatably provided with a rotating shaft, and the output end of the speed reducer is in transmission connection with the rotating shaft so as to drive the rotating shaft to rotate; the mounting seat is arranged on the rotating shaft and synchronously rotates along with the rotating shaft, the mounting seat comprises a mounting plate, and a fixing structure for fixing the laser tracker is arranged on the mounting plate; the supporting seat is also provided with a locking structure for locking the rotating shaft or the mounting seat after the rotating shaft or the mounting seat rotates in place.

The beneficial effects of the above technical scheme are that: the utility model discloses a laser tracker arbitrary slope gesture measuring device includes the supporting seat and installs the reduction gear on the supporting seat, and the input shaft is installed to the input of reduction gear, is connected with the driving piece that is used for driving the input shaft rotation on the input shaft, like this under the effect of driving piece, just can drive the input shaft rotation, and then make the reduction gear obtain power input; the support seat is also rotatably provided with a rotating shaft, and the output end of the speed reducer is in transmission connection with the rotating shaft, so that the rotating shaft can be driven to rotate by the power output by the speed reducer; the mounting seat is arranged on the rotating shaft and synchronously rotates along with the rotating shaft, the mounting seat comprises a mounting plate, and a fixing structure for fixing the laser tracker is arranged on the mounting plate, so that the laser tracker can be fixed on the mounting plate, and the laser tracker can synchronously rotate along with the rotating shaft to change different inclination angles; the supporting seat is further provided with a locking structure for locking the rotating shaft or the mounting seat after the rotating shaft or the mounting seat rotates in place, so that the inclination angle of the laser tracker can be fixed, the laser tracker can be used for measuring at different inclination angles, and the measurement of any inclination posture can be realized, so that the feasibility and the measurement precision of the laser tracker in any inclination posture measurement can be researched, and the theoretical system of the laser tracker in any inclination posture measurement can be perfected.

Furthermore, the locking structure comprises a locking shaft fixedly arranged on the supporting seat, a locking block sleeved outside the locking shaft and a locking hand wheel in threaded connection with the locking shaft, and the locking hand wheel is used for pushing the locking block to move when rotating; the one end that the reduction gear was kept away from to the pivot passes the supporting seat and is provided with the locking dish with the synchronous pivoted of pivot, the locking piece is used for roof pressure locking dish to the pivot is locked.

The beneficial effects of the above technical scheme are that: the locking hand wheel is in threaded connection with the locking shaft, and the locking block is sleeved on the locking shaft, so that when the locking hand wheel rotates, the locking block can be pushed to move; because the one end that the reduction gear was kept away from to the pivot passes the supporting seat and is provided with the locking dish with the synchronous pivoted of pivot, the locking piece is used for roof pressure locking dish, just so can lock the pivot, and overall structure is simple, makes things convenient for manufacturing and operation to use.

Furthermore, the surface of the locking disc is provided with angle marks arranged along the circumferential direction, and the supporting seat is provided with reference marks which are matched with the angle marks for observation.

The beneficial effects of the above technical scheme are that: through set up the angle mark on the locking dish to set up the reference mark on the supporting seat, can observe out the rotatory angle of pivot and laser tracker directly perceivedly, thereby conveniently adjust the angle that needs.

Furthermore, the locking dish includes disc portion and the portion of establishing that links to each other and be used for the cover to establish in the pivot outside with disc portion, and the portion of establishing is fixed on the pivot through top set screw in the cover.

The beneficial effects of the above technical scheme are that: the locking plate is simple in structure and convenient to fix and install.

Furthermore, the mounting seat further comprises two mounting supports detachably connected with the mounting plate, each mounting support is sleeved outside the rotating shaft, two annular bulges used for being connected with the two mounting supports respectively are arranged on the rotating shaft in an upward protruding mode, and each annular bulge is fixedly connected with the corresponding mounting support through a connecting screw.

The beneficial effects of the above technical scheme are that: the annular bulge is arranged on the rotating shaft in a protruding mode, the annular bulge is fixedly connected with the corresponding mounting bracket through the connecting screw, synchronous rotation between the mounting seat and the rotating shaft is achieved, the whole structure is simple, and processing, manufacturing and assembling are convenient.

Further, the speed reducer is a worm gear speed reducer.

The beneficial effects of the above technical scheme are that: the worm gear reducer has a self-locking function, and after the laser tracker rotates to a certain inclination angle, the angle of the laser tracker can be ensured not to be changed.

Further, the input shaft is arranged perpendicular to the rotation shaft.

The beneficial effects of the above technical scheme are that: reasonable layout and avoids overlarge occupied space of the measuring device.

Further, the driving piece is a crank handle hand wheel with a crank handle.

The beneficial effects of the above technical scheme are that: simple structure, low cost, convenient configuration and flexible operation.

Furthermore, the supporting seat comprises a bottom plate and a supporting plate vertically fixed on the bottom plate, one end of the rotating shaft is directly in transmission connection with the output end of the speed reducer, and the other end of the rotating shaft is rotatably installed on the supporting plate through a bearing.

The beneficial effects of the above technical scheme are that: the supporting seat is simple in structure, convenient to process and manufacture, capable of reducing the whole weight of the measuring device and convenient to move.

Further, the fixing structure is a fixing screw.

The beneficial effects of the above technical scheme are that: simple structure, convenient processing, installation convenient to use.

Drawings

Fig. 1 is a perspective view of the arbitrary inclination attitude measuring device of the laser tracker of the present invention;

fig. 2 is a front view of the arbitrary inclination attitude measuring device of the laser tracker of the present invention;

fig. 3 is a top view of the arbitrary inclination attitude measuring device of the laser tracker of the present invention;

fig. 4 is the utility model discloses well laser tracker inclines arbitrary gesture measuring device's left side view.

In the figure: 1. a fixing screw; 2. a rotating shaft; 3. an input shaft; 4. a lock shaft; 5. a support plate; 6. mounting a plate; 7. mounting a bracket; 8. a cover plate; 9. a locking plate; 91. a disk portion; 92. a housing portion; 10. a base plate; 11. a locking block; 12. a crank handle; 13. locking a hand wheel; 14. a speed reducer; 15. a nut; 16. an annular projection; 17. jacking the screw; 18. reference signs are used.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …," or the like, does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

The utility model discloses well laser tracker arbitrary slope gesture measuring device (hereinafter be referred to as measuring device)'s preferred embodiment does:

as shown in fig. 1, 2, 3 and 4, the measuring device comprises a support base and a speed reducer 14 mounted on the support base, the support base comprising a base plate 10 and a support plate 5 vertically fixed on the base plate 10, the base plate 10 being used to fix the entire measuring device on a tripod or a forced centering device. The support plate 5 is located at the right end of the base plate 10, and the decelerator 14 is installed at the left end of the base plate 10. The input end of the speed reducer 14 is provided with an input shaft 3, the speed reducer 14 is further provided with a cover plate 8, and the input shaft 3 penetrates through the cover plate 8 and the axis of the input shaft extends in the front-back direction. The input shaft 3 is connected with a driving part for driving the input shaft 3 to rotate, the driving part in the embodiment is a crank hand wheel 12 with a crank, and the driving part has the advantages of simple structure, low cost, convenient configuration and flexible operation.

The supporting seat is further rotatably provided with a rotating shaft 2, the axis of the rotating shaft 2 extends along the left-right direction, namely the rotating shaft 2 is perpendicular to the input shaft 3, the right end of the rotating shaft 2 is rotatably arranged on the supporting plate 5 through a bearing, and the left end of the rotating shaft 2 is directly in transmission connection with the output end of the speed reducer 14 so as to drive the rotating shaft 2 to rotate through the speed reducer 14. Install on the pivot 2 along with 2 synchronous pivoted mount pads of pivot, the mount pad includes mounting panel 6 and with two installing support 7 of 6 releasable connection of mounting panel, mounting panel 6 is used for bearing laser tracker, and is provided with the fixed knot who is used for fixed laser tracker on the mounting panel 6 and constructs, in this embodiment, above-mentioned fixed knot constructs for set screw 1, is provided with corresponding screw hole on the bottom surface of laser tracker to be connected with set screw 1 cooperation.

Two installing supports 7 all are the V-arrangement, and the bottom cover is established in pivot 2 outsides, and screw and 6 releasable connection are passed through at the top. The two annular bulges 16 which are respectively connected with the two mounting brackets 7 are arranged on the rotating shaft 2 in an upward protruding mode, and each annular bulge 16 is fixedly connected with the corresponding mounting bracket 7 through a connecting screw, so that synchronous rotation between the mounting seat and the rotating shaft 2 is realized, the whole structure is simple, and the processing, the manufacturing and the assembly are convenient.

The supporting seat is further provided with a locking structure for locking the rotating shaft 2 after the rotating shaft rotates in place, specifically in the embodiment, the locking structure comprises a locking shaft 4 fixedly arranged on the supporting plate 5, a locking block 11 sleeved outside the locking shaft 4 and a locking hand wheel 13 in threaded connection with the locking shaft 4, and the locking hand wheel 13 is used for pushing the locking block 11 to move when rotating. Specifically, the left end of the locking shaft 4 passes through the support plate 5 and is fixedly connected with the nut 15, so that the locking shaft 4 is fixed on the support plate 5.

Meanwhile, the right end of the rotating shaft 2 penetrates through the supporting plate 5 and is provided with a locking disc 9 which rotates synchronously with the rotating shaft 2, and the locking block 11 is used for jacking and pressing the locking disc 9 so as to lock the rotating shaft 2. Specifically, the locking disc 9 includes a disc portion 91 and a sleeve portion 92 connected to the disc portion 91 and configured to be sleeved outside the rotating shaft 2, and the sleeve portion 92 is fixed to the rotating shaft 2 by a tightening screw 17. The right end face of the disc part 91 is provided with angle marks arranged along the circumferential direction, and as shown in fig. 3, the support plate 5 is provided with reference marks 18 which are observed in cooperation with the angle marks, so that when the locking disc 9 rotates, the rotating angle of the rotating shaft 2 and the laser tracker can be observed visually, and the posture of the laser tracker can be adjusted conveniently. The attitude of the laser tracker needs to be described by a uniform index, and the measuring device describes the attitude of the laser tracker by using the rotation angle. The rotation angle of the arbitrary tilt attitude measurement apparatus of the laser tracker is defined as follows: the side where the locking hand wheel 13 is located is taken as the sight line direction (namely the right sight direction), the mounting plate 6 is 0 degree when horizontal, the clockwise rotation is positive, the anticlockwise rotation is negative, and the rotation angle range is-90 degrees to-90 degrees.

The utility model discloses the installation procedure of well measuring device and instrument is as follows:

(1) the entire measuring device is mounted on a tripod or a forced centering device via the base plate 10;

(2) the locking hand wheel 13 is rotated clockwise, the locking block 11 is extruded, the locking disc 9 is further extruded, the rotating shaft 2 and the mounting plate 6 are prevented from rotating to damage the instrument, and the laser tracker is fixed on the mounting plate 6 through the fixing screw 1;

(3) after the instrument is installed, the locking hand wheel 13 is rotated anticlockwise, the extrusion on the locking block 11 and the locking disc 9 is relieved, the crank hand wheel 12 is rotated, the rotating shaft 2 and the mounting plate 6 are driven to rotate, and the rotation angle value can be visually reflected through scales on the locking disc 9;

(4) after the laser tracker rotates to an ideal measurement posture, the locking hand wheel 13 is rotated clockwise, the positions of the rotating shaft 2 and the mounting plate 6 are fixed, and then measurement can be started. Meanwhile, the speed reducer 14 in the embodiment is a worm gear speed reducer, specifically, an RV30 speed reducer, has a self-locking function, and can further ensure that the angle of the laser tracker cannot be changed.

Adopt the utility model discloses a measuring device can realize the three-dimensional coordinate of laser tracker measurement space point under perpendicular, slope, horizontality, is the basic device of research laser tracker arbitrary slope position appearance measurement. Based on the device, relevant experiments can be carried out, the feasibility and the measurement precision of the laser tracker in measurement of any inclined posture can be researched, a theoretical system in the field is perfected, the practical engineering problems such as ultra-deep narrow shaft connection measurement are solved, and the working efficiency is improved.

In other embodiments of the laser tracker arbitrary tilt attitude measurement apparatus: the fixing structure on the mounting plate can also be a bolt through hole for a bolt to pass through or a welding stud fixed on the mounting plate by welding.

In other embodiments of the laser tracker arbitrary tilt attitude measurement apparatus: the supporting seat can comprise a bottom plate and two supporting plates vertically fixed on the bottom plate, and two ends of the rotating shaft are respectively rotatably installed on the supporting plates.

In other embodiments of the laser tracker arbitrary tilt attitude measurement apparatus: the driving part can also be a hand wheel without a crank, or the driving part can also be an elongated rocker.

In other embodiments of the laser tracker arbitrary tilt attitude measurement apparatus: the input shaft and the rotating shaft may also be parallel.

In other embodiments of the laser tracker arbitrary tilt attitude measurement device: the reducer may be a gear reduction.

In other embodiments of the laser tracker arbitrary tilt attitude measurement apparatus: the rotating shaft is not provided with an annular bulge, and the mounting bracket and the rotating shaft are connected through keys to realize synchronous rotation, or the mounting bracket is directly fixed on the rotating shaft through a screw; of course, the mounting base may also not include a mounting bracket, for example, the mounting plate may be directly fixed to the shaft.

In other embodiments of the laser tracker arbitrary tilt attitude measurement apparatus: the locking disc can only be composed of a disc part, and the locking disc and the rotating shaft can be directly welded and fixed at the moment, and can also realize synchronous rotation through key connection.

In other embodiments of the laser tracker arbitrary tilt attitude measurement apparatus: the surface of the locking disc can be free of angle marks, and meanwhile, the supporting seat is also free of reference marks, so that the rotating angle of the rotating shaft can be obtained through other measuring means.

In other embodiments of the laser tracker arbitrary tilt attitude measurement apparatus: the locking structure can be a lock pin, a fixing plate can be vertically fixed on the supporting plate at the moment, a pin hole is formed in the fixing plate, a plurality of insertion holes are formed in the rotating shaft along the circumferential direction, and the lock pin directly penetrates through the pin hole in the fixing plate and is inserted into the insertion holes in the rotating shaft to lock the rotating shaft; or the mounting bracket is provided with a pin hole, the support plate is provided with a plurality of jacks arranged along the circumferential direction, and the lock pin directly penetrates through the pin hole of the mounting bracket and is inserted into the jacks on the support plate to lock the mounting seat.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. The device for measuring the random inclination posture of the laser tracker is characterized by comprising a supporting seat and a speed reducer (14) arranged on the supporting seat, wherein an input shaft (3) is arranged at the input end of the speed reducer (14), and a driving piece for driving the input shaft (3) to rotate is connected to the input shaft (3); the supporting seat is also rotatably provided with a rotating shaft (2), and the output end of the speed reducer (14) is in transmission connection with the rotating shaft (2) so as to drive the rotating shaft (2) to rotate; the mounting seat synchronously rotating along with the rotating shaft (2) is mounted on the rotating shaft (2), the mounting seat comprises a mounting plate (6), and a fixing structure for fixing the laser tracker is arranged on the mounting plate (6); the supporting seat is also provided with a locking structure for locking the rotating shaft (2) or the mounting seat after the rotating shaft or the mounting seat rotates in place.

2. The device for measuring any inclination posture of the laser tracker according to claim 1, wherein the locking structure comprises a locking shaft (4) fixedly arranged on the support base, a locking block (11) sleeved outside the locking shaft (4) and a locking hand wheel (13) in threaded connection with the locking shaft (4), and the locking hand wheel (13) is used for pushing the locking block (11) to move when rotating; the supporting seat is passed and be provided with locking dish (9) with pivot (2) synchronous rotation to the one end that reduction gear (14) were kept away from in pivot (2), locking piece (11) are used for roof pressure locking dish (9) to the counter shaft (2) lock.

3. The laser tracker random inclination attitude measurement apparatus according to claim 2, wherein the surface of the locking plate (9) is provided with angle marks arranged along the circumferential direction, and the support base is provided with a reference mark (18) which is observed in cooperation with the angle marks.

4. The device for measuring the random inclination attitude of the laser tracker according to claim 2 or 3, wherein the locking disc (9) comprises a disc portion (91) and a sleeve portion (92) connected with the disc portion (91) and used for being sleeved outside the rotating shaft (2), and the sleeve portion (92) is fixed on the rotating shaft (2) through a tightening screw (17).

5. The device for measuring any inclination attitude of the laser tracker according to any one of claims 1 to 3, characterized in that the mounting base further comprises two mounting brackets (7) detachably connected with the mounting plate (6), each mounting bracket (7) is sleeved outside the rotating shaft (2), two annular protrusions (16) for respectively connecting with the two mounting brackets (7) are arranged on the rotating shaft (2) in a protruding manner, and each annular protrusion (16) is fixedly connected with the corresponding mounting bracket (7) through a connecting screw.

6. The arbitrary inclination attitude measurement device of the laser tracker according to any one of claims 1 to 3, characterized in that the reducer (14) is a worm reducer.

7. The arbitrary tilt attitude measurement device of the laser tracker according to any one of claims 1 to 3, characterized in that the input shaft (3) is arranged perpendicular to the rotation shaft (2).

8. The device for measuring any inclination attitude of a laser tracker according to any one of claims 1 to 3, characterized in that the drive member is a crank hand wheel (12) with a crank.

9. The device for measuring any inclination attitude of the laser tracker according to any one of claims 1 to 3, wherein the supporting base comprises a bottom plate (10) and a supporting plate (5) vertically fixed on the bottom plate (10), one end of the rotating shaft (2) is directly connected with the output end of the reducer (14) in a transmission manner, and the other end of the rotating shaft (2) is rotatably mounted on the supporting plate (5) through a bearing.

10. The arbitrary inclination attitude measurement device of the laser tracker according to any one of claims 1 to 3, characterized in that the fixing structure is a fixing screw (1).