CN-122015738-A - Large-size test piece coordinate mapping scanning device

CN122015738ACN 122015738 ACN122015738 ACN 122015738ACN-122015738-A

Abstract

The invention provides a large-size test piece coordinate mapping scanning device which comprises a driving arm, a stabilizing mechanism and a scanning mechanism, wherein the driving arm comprises a fixed arm, a movable arm and a driving mechanism, an installation cavity with an opening at one end is arranged in the middle of the fixed arm, one end of the movable arm is movably arranged in the installation cavity through the driving mechanism, the other end of the movable arm is positioned outside the installation cavity, the scanning mechanism is arranged at one end of the movable arm, which is positioned outside the installation cavity, and is used for scanning a large-size test piece, and the stabilizing mechanism is arranged between the fixed arm and the movable arm and is used for guaranteeing the stability of the movable arm in the scanning process of the large-size test piece after the movable arm stretches. When the invention is used, the moving table moves in the field, and after the moving table reaches the test piece area, the position of the scanning mechanism can scan the test piece in an all-around and dead-angle-free way by matching the adjusting component with the driving arm according to the actual condition of the test piece.

Inventors

LI XIANGLONG
ZHANG BOYANG
HU TAO
DENG WANCHENG
WANG JIANGUO

Assignees

昆明理工大学

Dates

Publication Date: 20260512
Application Date: 20260331

Claims (10)

1. A large-size specimen coordinate mapping scanning device, characterized by comprising: The scanning assembly comprises a driving arm, a stabilizing mechanism and a scanning mechanism, wherein the driving arm comprises a fixed arm, a movable arm and a driving mechanism, a mounting cavity with an opening at one end is arranged in the middle of the fixed arm, one end of the movable arm moves in the mounting cavity through the driving mechanism, the other end of the movable arm is positioned outside the mounting cavity, the scanning mechanism is arranged at one end of the movable arm, which is positioned outside the mounting cavity, and is used for scanning a large-size test piece, and the stabilizing mechanism is arranged between the fixed arm and the movable arm and is used for guaranteeing the stability of the movable arm in the scanning process of the large-size test piece after the movable arm stretches; The scanning assembly is arranged on the adjusting assembly, and the angle of the scanning assembly is adjusted through the adjusting assembly, so that the scanning assembly can conveniently carry out comprehensive dead angle-free scanning on a large-size test piece; A mobile station, the adjustment assembly being disposed on the mobile station.
2. The large-size test piece coordinate mapping scanning device according to claim 1, wherein the driving mechanism comprises a moving block, a threaded rod, a spline shaft, a threaded sleeve and a first motor, the moving block is slidably arranged in the mounting cavity through a linear sliding rail module and linearly moves between the bottom of the mounting cavity and an opening, the threaded rod and the spline shaft are rotatably arranged in the mounting cavity, the axis is arranged towards the opening of the mounting cavity, the axes are mutually horizontal, the moving block is provided with a threaded hole and a mounting hole with two penetrating ends, the threaded rod is rotatably connected in the threaded hole, one end of the threaded sleeve, which faces the bottom of the mounting cavity, is rotatably arranged in the mounting hole of the moving block through a rolling bearing, the axis is collinear with the spline shaft, threads which are axially arranged are arranged outside the threaded sleeve, a hole which is matched with the spline shaft is arranged in the threaded sleeve in a spline fit mode, the first motor is fixedly arranged on the fixed arm, the output end of the first motor is fixedly connected with the threaded rod, which is close to the bottom of the mounting cavity, through a shaft coupling, and the threaded shaft is fixedly connected with the threaded shaft through the spline shaft.
3. The large-size test piece coordinate mapping scanning device according to claim 2, wherein the spline shaft and the threaded rod are rotatably mounted at the bottom of the mounting cavity through rolling bearings, one end, close to the mounting cavity, of the threaded rod penetrates through the fixed arm, is located outside the fixed arm and is connected through a synchronous pulley mechanism, the first motor is fixedly mounted on the outer side of the fixed arm, and the spline shaft is driven to rotate through the first motor.
4. The large-size test piece coordinate mapping scanning device according to claim 2, wherein the moving arm is internally provided with a threaded hole, the threaded sleeve is screwed inside the moving arm through the threaded hole, the spline shaft, the threaded sleeve and the threaded rod are driven to rotate simultaneously when the first motor is started, the moving arm and the moving block can move in the mounting cavity respectively through rotation of the threaded sleeve and the threaded rod, and the threaded sleeve can move axially when the moving block moves.
5. The large-size test piece coordinate mapping scanning device according to claim 1, wherein the scanning mechanism comprises a rotating arm, a mounting seat and a scanner, one end of the rotating arm is rotatably mounted at one end of the moving arm, which is positioned outside the mounting cavity, and is driven to rotate by a second motor, the mounting seat is rotatably mounted at one end of the rotating arm, which is far away from the moving arm, and is driven to rotate by a third motor, and the scanner is mounted in the mounting seat.
6. The large-size test piece coordinate mapping scanning device according to claim 1, wherein the stabilizing mechanisms are arranged on the outer sides of the fixed arms and the movable arms in a distributed mode, so that the movable arms are tensioned through the stabilizing mechanisms in all directions, the stabilizing mechanisms comprise pull ropes, fixed pulleys, tensioning parts and pull rope retracting parts, the fixed pulleys are fixedly arranged on the fixed arms and located on the outer sides, close to the opening of the installation cavity, of the fixed arms, the tensioning parts are arranged on the outer sides, close to the bottom of the installation cavity, of the fixed arms, the pull rope retracting parts are arranged between the fixed pulleys and the tensioning parts, one ends of the pull ropes are fixedly arranged on the pull rope retracting parts, the other ends of the pull ropes are sequentially matched with the tensioning parts and the fixed pulleys, and then are fixedly connected to one ends, located on the outer sides of the installation cavity, of the movable arms.
7. The large-size test piece coordinate mapping scanning device according to claim 5, wherein the pull rope winding and unwinding part comprises a fourth motor and a wire coil, the fourth motor and the wire coil are arranged on the outer side of the fixed arm, the rotation of the wire coil is driven by the fourth motor, one end of the pull rope is fixedly connected to the wire coil, and the pull rope is matched with the tensioning part after being wound for a plurality of circles; The tensioning portion comprises a mounting block, a hinge plate, a pulley and an electric telescopic rod, wherein the mounting block is fixedly arranged on the fixed arm, two ends of the hinge plate are respectively connected with the mounting block and the pulley in a rotating mode, one end of the electric telescopic rod is rotatably arranged on the mounting block through a hinge seat, the other end of the electric telescopic rod is connected with the hinge plate, which is far away from one end of the mounting block, in a rotating mode, when the electric telescopic rod stretches out and draws back, the hinge plate is rotated on the mounting block, and the pull rope is matched with the pulley and the fixed pulley after passing through a wire coil.
8. The large-size test piece coordinate mapping scanning device according to claim 2, wherein auxiliary support plates are symmetrically arranged between the movable arm and the fixed arm, linear slide rail modules are arranged on two sides of each auxiliary support plate, and are respectively connected with the movable arm and the inner wall of the mounting cavity through the linear slide rail modules, and when the movable arm moves, the auxiliary support plates move simultaneously.
9. The large-size test piece coordinate mapping scanning device according to claim 1, wherein the adjusting component comprises a fixed frame, a rotating frame and a moving part, the fixed arm is arranged on the rotating frame in a sliding manner through an electric sliding rail module, the rotating frame is movably arranged on the fixed frame through the moving part, and the fixed frame is fixedly arranged on the moving table; The movable part comprises a lifting table and a fifth motor, a connecting frame is arranged in the middle of the rotating frame, the connecting frame is rotatably installed on the lifting table through a rotating shaft and is driven to rotate by the fifth motor, and the lifting table is movably arranged on the fixing frame up and down through an electric sliding rail module.
10. The large-size test piece coordinate mapping scanning device according to claim 8, wherein the mobile station comprises an electric control assembly and a crawler-type mobile vehicle, the fixed frame is vertically and fixedly arranged on the crawler-type mobile vehicle, and the electric control assembly is fixedly arranged on the crawler-type mobile vehicle.

Description

Large-size test piece coordinate mapping scanning device Technical Field The invention belongs to engineering measurement automation equipment, and particularly relates to a large-size test piece coordinate mapping scanning device. Background In engineering measurement of large-size and multi-test-piece, in order to realize subsequent automatic multi-parameter measurement, all test-pieces in a field are required to be scanned firstly to acquire space position, morphology and size data of the test-pieces, and space coordinates of each test-piece are accurately mapped into a field global unified coordinate system, which is a precondition for ensuring consistency of subsequent measurement data and realizing transverse comparison of multi-test-piece data. At present, coordinate scanning and positioning of multiple test pieces in industry still mainly adopt a traditional manual operation or a simple fixing device matched mode, test piece scanning under the prior art is mainly carried out on the test pieces one by adopting manual handheld scanning equipment, or single test piece scanning is completed by fixing a single-station scanning device, and a large-size test piece on an engineering site cannot realize full-surface and dead-angle-free scanning due to large volume and weight, so that the cloud data of the test piece point is easy to be lost, and further coordinate mapping deviation is caused, and the subsequent measurement precision is influenced. Therefore, in order to solve the above problems, a device capable of realizing automatic scanning of multiple test pieces is needed to solve the technical problems that in the prior art, the coordinate mapping efficiency of a large-size test piece is low, the precision is poor, the full surface scanning can not be realized, and no dead angle scanning is available. Disclosure of Invention In view of the above-mentioned drawbacks of the prior art, the present invention aims to provide a large-size test piece coordinate mapping scanning device, which is used for solving the technical problems in the prior art that the large-size test piece coordinate mapping efficiency is low, the precision is poor, the full surface scanning can not be realized, and no dead angle scanning is available. To achieve the above and other related objects, the present invention provides a large-sized specimen coordinate mapping scanning apparatus 1, comprising: The scanning assembly comprises a driving arm, a stabilizing mechanism and a scanning mechanism, wherein the driving arm comprises a fixed arm, a movable arm and a driving mechanism, a mounting cavity with an opening at one end is arranged in the middle of the fixed arm, one end of the movable arm moves in the mounting cavity through the driving mechanism, the other end of the movable arm is positioned outside the mounting cavity, the scanning mechanism is arranged at one end of the movable arm, which is positioned outside the mounting cavity, and is used for scanning a large-size test piece, and the stabilizing mechanism is arranged between the fixed arm and the movable arm and is used for guaranteeing the stability of the movable arm in the scanning process of the large-size test piece after the movable arm stretches; The scanning assembly is arranged on the adjusting assembly, and the angle of the scanning assembly is adjusted through the adjusting assembly, so that the scanning assembly can conveniently carry out comprehensive dead angle-free scanning on a large-size test piece; A mobile station, the adjustment assembly being disposed on the mobile station. Therefore, the invention can be driven to move in the field by using the moving table, the position of the test piece can be moved faster, the scanning efficiency is improved, after the test piece reaches the test piece area, the position of the scanning mechanism can scan the test piece in all aspects and without dead angles by matching the adjusting component with the driving arm, and when the adjusting component adjusts the driving arm and the driving arm to drive the scanning mechanism, the stabilizing mechanism can reduce the shaking of the moving arm, so that the moving arm is more stable, the shaking of the scanning mechanism in the scanning process is reduced, and the scanning and mapping precision is improved. Optionally, actuating mechanism includes movable block, threaded rod, spline shaft, threaded sleeve and first motor, the movable block passes through the linear slide rail module and slides and set up in the installation cavity, the direction of movement orientation the opening setting in installation cavity, the threaded rod with the spline shaft rotates and installs in the installation cavity, the axis orientation the opening setting in installation cavity, and the axis is horizontal each other, threaded hole and mounting hole that both ends run through have on the movable block, the threaded rod connects soon in threaded hole, the threaded sleeve orientation t