CN115900600B - Deep hole straightness and contour detection device and detection method - Google Patents
Deep hole straightness and contour detection device and detection method Download PDFInfo
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- CN115900600B CN115900600B CN202310139095.4A CN202310139095A CN115900600B CN 115900600 B CN115900600 B CN 115900600B CN 202310139095 A CN202310139095 A CN 202310139095A CN 115900600 B CN115900600 B CN 115900600B
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Abstract
The application provides a deep hole straightness and contour detection device and a detection method, wherein the detection device comprises a moving mechanism, an axial lead detection mechanism and a contour detection mechanism, and the moving mechanism is arranged in a deep hole in a mode of being capable of moving along any bus on the inner wall of the deep hole; the axial lead detection mechanism comprises a structural spot source fixed on the moving mechanism and detection components arranged at the deep hole opening at intervals; the profile detection mechanism comprises a ranging sensor fixed on the moving mechanism and a driving assembly for driving the ranging sensor to rotate by taking the axis of the deep hole as the center of a circle. The method can solve the problems that the existing detection method is difficult to operate, the detection precision is low, and the requirements of related industries cannot be met.
Description
Technical Field
The application relates to the technical field of mechanical part measurement, in particular to a deep hole straightness and contour detection device and method.
Background
Deep hole type parts are widely applied to important fields such as military, aerospace and energy exploration, in the production process of deep hole type parts, straightness of the axial lead and hole outline shape of the deep hole type parts are often required to be detected, and unqualified parts are straightened and corrected in time so as to better evaluate and ensure the quality of the deep hole type parts.
However, the deep hole parts have large length-diameter ratio and small internal space, so that the currently used detection method is difficult to operate, the detection precision is low, and the requirements of related industries cannot be met.
Disclosure of Invention
The purpose of the application is to provide a deep hole straightness and contour detection device and a detection method, which are used for solving the problems that the existing detection method is difficult to operate, the detection precision is not high, and the requirements of related industries cannot be met. The specific technical scheme is as follows:
in a first aspect, the present application provides a deep hole straightness and contour detection device, including:
the moving mechanism is arranged in the deep hole in a mode of being capable of moving along any bus of the deep hole;
the axial lead detection mechanism comprises a structural spot source fixed on the moving mechanism and detection components arranged at the deep hole opening at intervals;
the detection assembly comprises imaging panels which are arranged at the hole openings of the deep holes at intervals and perpendicular to the axial lead of the deep holes, and two industrial cameras which are symmetrically arranged at the outer sides of the deep holes, wherein CCD lenses of the two industrial cameras are focused on the imaging panels;
the profile detection mechanism comprises a ranging sensor fixed on the moving mechanism and a driving assembly for driving the ranging sensor to rotate by taking the axis of the deep hole as the center of a circle;
the initial positions of the structural spot sources and the ranging sensor are located at the axis of the deep hole, light rays emitted by the structural spot sources extend along the axial direction of the deep hole and face the orifice of the deep hole, and the probe of the ranging sensor faces the inner wall of the deep hole.
The deep hole straightness and contour detection device provided by the application sets up that the initial position of structure spot source and range sensor is in on the axle center line of deep hole, and the light of structure spot source emission propagates to the drill way department of deep hole along the axial, utilizes the light position of detecting element detection structure spot source emission, obtains the axle center position of deep hole.
Meanwhile, a driving assembly in the profile detection mechanism drives the ranging sensor to rotate by taking the axis of the deep hole as the center of a circle, and in the rotation process, the distance between a ranging sensor probe and any generatrix of the inner wall of the deep hole is obtained, so that the profile of the inner wall of the deep hole at the axial position is obtained.
The moving mechanism drives the structural spot source of the axial lead detecting mechanism and the contour detecting mechanism to move along any bus in the deep hole, the axial center position and the inner wall contour of the deep hole at different axial positions are repeatedly obtained, the structure of the deep hole is reconstructed based on the axial center position and the inner wall contour, and the straightness and the contour detecting result are obtained.
Therefore, the technical scheme that this application provided does not receive the restriction that deep hole class part draw ratio is big, inner space is narrow and small, conveniently operates, and simple structure, low cost, detection accuracy improves.
In some embodiments of the present application, the detecting device further includes an upper computer, where:
the image acquisition module is used for receiving detection data acquired by the detection assembly and the ranging sensor;
the data processing module is used for processing the detection data acquired by the image acquisition module;
and the display module is used for displaying the processing result of the detection data.
In some embodiments of the present application, the driving component is a pan-tilt motor;
the detection device also comprises a controller and a hub motor which are arranged on the moving mechanism;
the controller is connected with the upper computer through wireless communication so as to receive a control instruction sent by the upper computer;
the cradle head motor and the hub motor are used for receiving control instructions transferred by the controller so as to drive the moving mechanism to move and drive the ranging sensor to rotate.
In some embodiments of the present application, the controller is further connected to the ranging sensor, the structured spot source, respectively.
In some embodiments of the present application, the detection device further comprises an adjusting screw disposed perpendicular to the axis of the deep hole;
one end of the adjusting screw is in threaded connection with the moving mechanism, and two sides of the other end of the adjusting screw are respectively and fixedly connected with the driving assembly and the structural spot source.
In some embodiments of the present application, the detection device further comprises a lithium battery fixed on the movement mechanism;
the lithium battery is respectively and electrically connected with the controller, the structural spot source, the hub motor, the cradle head motor and the ranging sensor to supply power to the lithium battery.
In a second aspect, the present application further provides a deep hole straightness and contour detection method, including the following steps:
step S1, placing the moving mechanism at a certain axial position in the deep hole, starting the structural spot source and the industrial camera, enabling light rays emitted by the structural spot source to axially spread to the imaging panel along the deep hole to form light spots, and acquiring images of the light spots by using CCD lenses of the two industrial cameras;
step S2, the upper computer sends a control instruction to the controller, and the controller distributes the control instruction to the driving assembly so that the driving assembly drives the ranging sensor to rotate by taking the axis of the deep hole as the center of a circle;
opening the ranging sensor, and measuring the distance between the ranging sensor probe and any busbar on the inner wall of the deep hole in real time in the rotating process;
step S3, the industrial camera and the ranging sensor send detection data to the upper computer, and the axial center and the internal profile of the deep hole at the axial position are obtained through processing;
step S4, the upper computer sends a control instruction to the controller, and the controller distributes the control instruction to the hub motor to drive the moving mechanism to move along any bus in the deep hole;
and in the moving process, repeating the steps S1-S3 to obtain the axle centers and the inner wall contours at different axial positions of the deep hole.
The deep hole straightness and contour detection method is free from the influence of the length-diameter ratio of the deep hole part, simple in detection process, easy to realize and high in detection precision.
In some embodiments of the present application, before the detection, the screwing depth of the adjusting screw in the moving mechanism is adjusted according to the inner diameter of the deep hole, so that the initial position of the driving assembly and the structural spot source is located on the axis of the deep hole.
In some embodiments of the present application, in the step S3, the upper computer acquires the detection data by using the image acquisition module, and then transmits the detection data to the data processing module for processing, and sends the processing result to the display module for display.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a deep hole straightness and contour detection device provided by the application;
FIG. 2 is a schematic diagram of a contour detecting mechanism in the deep hole straightness and contour detecting device of FIG. 1;
fig. 3 is a schematic diagram of a detection flow of the deep hole straightness and contour detection device in fig. 1.
The reference numerals in the drawings are as follows:
1-a moving mechanism, 11-an in-wheel motor;
2-deep holes;
3-axis detection mechanism, 31-structure spot source, 32-detection component, 321-industrial camera, 322-imaging panel;
4-contour detection mechanism, 41-driving component, 42-ranging sensor;
the system comprises a 5-upper computer, a 51-image acquisition module, a 52-data processing module and a 53-display module;
6-adjusting screw, 7-controller, 8-lithium cell.
Description of the embodiments
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In order to solve the problems that the existing detection device and method are difficult to operate and low in detection precision and cannot meet requirements of related industries, the embodiment of the application provides a deep hole straightness and contour detection device. The following describes in detail a deep hole straightness and contour detection device and a deep hole straightness and contour detection method according to an embodiment of the present application with reference to the accompanying drawings.
As shown in fig. 1 and 2, the deep hole straightness and contour detection device provided in the embodiment of the present application includes a moving mechanism 1, an axial lead detection mechanism 3 and a contour detection mechanism 4.
The moving mechanism 1 is arranged in the deep hole 2 in a mode of being capable of moving along any bus on the inner wall of the deep hole 2, the axial lead detecting mechanism 3 comprises a structural spot source 31 fixed on the moving mechanism 1 and detecting components 32 arranged at the opening of the deep hole 2 at intervals, and the profile detecting mechanism 4 comprises a ranging sensor 42 fixed on the moving mechanism 1 and a driving component 41 for driving the ranging sensor 42 to rotate around the axial center of the deep hole 2.
The initial positions of the structural spot source 31 and the ranging sensor 42 are located at the axis of the deep hole 2, the light emitted by the structural spot source 31 extends along the axial direction of the deep hole 2 and faces the orifice of the deep hole 2, and the probe of the ranging sensor 42 faces the inner wall of the deep hole 2.
The ranging sensor 42 may be a laser ranging sensor, an ultrasonic ranging instrument, an infrared ranging sensor, etc., and the probe of the ranging sensor 42 is perpendicular to the axis of the deep hole 2 and faces the inner wall of the deep hole 2; a motor, a rotary handle, etc. may be used as the driving assembly 41 to rotate the ranging sensor 42.
The deep hole straightness and contour detection device provided by the application sets up that initial position of structure spot source 31 and range sensor 42 is in the axle center line of deep hole 2, and the light of structure spot source 31 emission propagates to the drill way department of deep hole 2 along the axial, utilizes the light position of detection component 32 detection structure spot source 31 emission, obtains the axle center position of deep hole.
Meanwhile, the distance measuring sensor 42 is driven by the driving component 41 in the contour detecting mechanism 4 to rotate by taking the axis of the deep hole 2 as the center of a circle, in the rotating process, the distance measuring sensor 42 emits laser, infrared rays, ultrasonic waves and the like towards the inner wall of the deep hole 2, and the distance between the probe of the distance measuring sensor 42 and any generatrix of the inner wall of the deep hole 2 is obtained by detecting the echo of the inner wall of the deep hole 2, so that the contour of the inner wall of the deep hole 2 at the axial position is obtained.
The moving mechanism 1 drives the structural spot source 31 of the axial lead detecting mechanism 3 and the contour detecting mechanism 4 to move along any bus in the deep hole 2, the axial center position and the inner wall contour of the deep hole 2 at different axial positions are repeatedly obtained, and the structure of the deep hole 2 is reconstructed based on the axial lead position and the contour detecting mechanism, so that the straightness and the contour detecting result are obtained.
Therefore, the technical scheme that this application provided does not receive the restriction that deep hole class part draw ratio is big, inner space is narrow and small, conveniently operates, and simple structure, low cost, detection accuracy improves.
As shown in fig. 1, in some embodiments of the present application, the detection assembly 32 includes an imaging panel 322 and two industrial cameras 321, the imaging panel 322 being spaced apart at the aperture of the borehole 2 and perpendicular to the axis of the borehole 2; the two industrial cameras 321 are symmetrically arranged outside the deep hole 2, and CCD lenses of the two industrial cameras 321 are focused on the imaging panel 322.
In this embodiment, by arranging the imaging panel 322 at the opening of the deep hole 2 to display the light spot emitted by the light spot source 31, two industrial cameras 321 are used to obtain the positions of the light spots on the imaging panel 322, so as to obtain the axial positions of the series moving mechanism 1 at different axial positions in the deep hole 2, and the detection process is simple and the precision is high.
As shown in fig. 3, in some embodiments of the present application, the detection device further includes a host computer 5, and an image acquisition module 51, a data processing module 52, and a display module 53 are disposed in the host computer 5.
The image acquisition module 51 is configured to acquire detection data acquired by the detection assembly 32 and the ranging sensor 42, and transmit the detection data to the data processing module 52; the data processing module 52 is configured to process the detection data acquired by the image acquisition module 51, and send the processing result to the display module 53 for display.
In this embodiment, the detection results of the ranging sensor 42 and the detection component 32 are transmitted to the image acquisition module 51 in the upper computer 5, the detection results are processed by the data processing module 52, the data processing efficiency is improved, and meanwhile, the display module 53 is used for displaying the data processing results, so that a user can conveniently and intuitively check the quality condition of the deep hole 2, and the detection results are processed in time, so that the efficiency and the effect of deep hole detection are improved.
In some embodiments of the present application, the driving component 41 is a pan-tilt motor, and the detection device further includes a controller 7 fixed on the moving mechanism 1 and an in-wheel motor 11.
The controller 7 is connected with the upper computer 5 through wireless communication, so as to receive a control instruction sent by the upper computer 5, and send the control instruction to the pan-tilt motor and the hub motor 11 respectively, so as to drive the moving mechanism 1 to move and drive the ranging sensor 42 to rotate.
Wherein, can use two in-wheel motor 11 drive moving mechanism 1, make things convenient for control moving mechanism 1 to go straight along the arbitrary generating line of deep hole 2 inner wall, avoid the detection error that direction change led to when moving mechanism 1 moves.
In this embodiment, the controller 7 is connected to the upper computer 5 through a wireless network, and is configured to receive a control instruction sent by the upper computer 5, convert the control instruction into corresponding pulse signals through the first timer/counter and the motor driving module, and send the pulse signals to the hub motor 11 and the pan-tilt motor respectively, control the rotational speeds and angles of the hub motor 11 and the pan-tilt motor, and further cause the moving mechanism 1 to move a certain distance in a predetermined direction, and rotate the ranging sensor 42 by a specific angle. By controlling the hub motor 11 and the pan-tilt motor by using the controller 7, the accuracy of controlling the movement of the moving mechanism 1 and the rotation of the ranging sensor 42 is improved, and the efficiency of detection is improved.
In some embodiments of the present application, the controller 7 is also connected to a ranging sensor 42, a structured spot source 31, respectively.
The distance measuring sensor 42 may be connected to the controller 7 through a second timing/counter to transmit the acquired distance data to the controller 7, and the controller 7 is connected to the image acquisition module 51 in the upper computer 5 in a wireless communication manner, so that the distance data may be input into the image acquisition module 51.
Since the distance measuring sensor 42 is provided on the moving mechanism 1, its distance from the host computer 5 depends on the hole depth of the deep hole 2. If the depth of the deep hole 2 is too large, the direct connection between the ranging sensor 42 and the upper computer 5 through the connecting wire can cause the connecting wire to be too long, so that the arrangement of the detection device and the detection are affected, signal interference can exist, and the detection efficiency and accuracy are reduced; therefore, the detection data of the distance measuring sensor 42 is transmitted to the controller 7 arranged on the moving mechanism 1, and then transmitted to the image acquisition module 51 in the upper computer 5 through wireless communication, so that the structure of the detection device can be simplified, and the detection efficiency and accuracy can be improved.
Meanwhile, a user can also input a switch control signal of the ranging sensor 42 and the structural spot source 31 into the upper computer 5, and the switch control signal is transmitted to the controller 7 through wireless communication, so that the switching of the ranging sensor 42 and the structural spot source 31 is conveniently controlled.
In some embodiments of the present application, the detection device further comprises an adjusting screw 6 arranged perpendicular to the axis of the deep hole 2; one end of the adjusting screw 6 is in threaded connection with the moving mechanism 1, and two sides of the other end of the adjusting screw are respectively and fixedly connected with the driving assembly 41 and the structural spot source 31.
In this embodiment, the initial positions of the driving component 41 and the structural spot source 31 are adjusted by adjusting the screwing depth of the adjusting screw 6 in the threaded hole on the moving mechanism 1, so that the center of the initial moment is located on the theoretical axis of the deep hole 2, thereby satisfying the straightness and contour measurement of the deep holes 2 with different inner diameters and improving the applicability of the detection device.
In some embodiments of the present application, the detection device further includes a lithium battery 8 fixed on the moving mechanism 1, where the lithium battery 8 is electrically connected to the controller 7, the structural spot source 31, the hub motor 11, the pan-tilt motor, and the ranging sensor 42, respectively, to supply power thereto.
In the embodiment, the lithium battery 8 is used for supplying power to other components, so that the service time of each component is prolonged, the arrangement of power lines is reduced, and the structure of the detection device is simplified.
A deep hole straightness and contour detection method comprises the following steps:
in step S1, the moving mechanism 1 is placed at a certain axial position in the deep hole 2, the structural spot source 31 and the industrial camera 321 are turned on, the light emitted by the structural spot source 31 propagates axially along the deep hole 2 to the imaging panel 322 to form a light spot, and the CCD lenses of the two industrial cameras 321 are utilized to obtain images of the light spot.
Step S2, the upper computer 5 sends a control instruction to the controller 7, and the controller 7 distributes the control instruction to the driving component 41, so that the driving component 41 drives the ranging sensor 42 to rotate by taking the axle center of the deep hole 2 as the circle center;
and opening the ranging sensor 42, and measuring the distance between the probe of the ranging sensor 42 and any busbar on the inner wall of the deep hole 2 in real time in the rotating process.
Step S3, the industrial camera 321 and the ranging sensor 42 send detection data to the upper computer 5 to obtain the axle center and the inner contour of the deep hole 2 at the axial position;
step S4, the upper computer 5 sends a control instruction to the controller 7, and the controller 7 distributes the control instruction to the hub motor 11 to drive the moving mechanism 1 to move along any straight line in the deep hole 2;
in the moving process, the steps S1-S3 are repeated, and the axle centers and the inner wall contours of the deep holes 2 at different axial positions are obtained.
The controller 7 can respectively control the hub motor 11 and the cradle head motor through the first timing/counter and the motor driving module, so that the control precision is ensured; meanwhile, in order to simplify the structure and the detection flow of the detection device, the structure spot source 31 and the ranging sensor 42 are connected with the controller 7, digital signals such as the switch control of the structure spot source 31 and the ranging sensor 42 are input into the upper computer 5, and are transmitted into the controller 7 through wireless communication, so that the switch control of the structure spot source 31 and the ranging sensor 42 is realized.
The distance measuring sensor 42 is driven by the driving component 41 to rotate by taking the axis of the deep hole 2 as the circle center, the distance between the probe of the distance measuring sensor 42 and each point on the inner wall of the deep hole 2 is detected, and the outline of the deep hole 2 at each axial position is obtained; by repeating the detection process, the circle center positions and the circle contour lines at a plurality of axial positions in the deep hole 2 can be obtained, the three-dimensional structure can be reproduced, the axial lead and the inner contour of the deep hole 2 are constructed based on the circle center positions and the circle contour lines, the detection method is not influenced by the length-diameter ratio of the deep hole part, the detection process is simple and easy to realize, and the detection result is more accurate and visual.
Meanwhile, the axial center position of the deep hole 2 at the axial position can be obtained through calculation according to the profile data acquired by the profile detection mechanism 4, the detection result of the axial lead detection mechanism 3 is mutually verified, the detection accuracy is improved, and the detection accuracy is greatly improved through a proper calibration method.
In some embodiments of the present application, the detection method further comprises:
the screw-in depth of the adjusting screw 6 in the moving mechanism 1 is adjusted according to the theoretical inner diameter of the deep hole 2, so that the initial position of the output shaft of the driving assembly 41 and the structural spot source 31 is positioned on the axis of the deep hole 2.
In this embodiment, by changing the screwing depth of the adjusting screw 6 in the moving mechanism 1, the center of the output shaft of the driving assembly 41 and the center of the structural spot source 31 are positioned on the theoretical axis of the deep hole 2 at the initial moment, so as to meet the detection of the deep holes 2 with different inner diameters, and expand the application range of the detection device.
In some embodiments of the present application, in step S3, the upper computer 5 acquires the detection data using the image acquisition module 51, and then transmits the detection data to the data processing module 52 for processing, and sends the processing result to the display module 53 for display.
In the embodiment, the intelligent data processing process is utilized, so that the data processing efficiency is improved, a user can intuitively know the quality condition of the deep hole conveniently, remedial measures can be taken in time, and the production efficiency and quality of the deep hole are guaranteed.
It is noted that relational terms such as first and second, and the like are 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. Moreover, the terms "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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a deep hole straightness and contour detection device which characterized in that includes:
the moving mechanism (1) is arranged in the deep hole (2) in a mode of being capable of moving along any bus on the inner wall of the deep hole (2);
the axial lead detection mechanism (3), the axial lead detection mechanism (3) comprises a structural spot source (31) fixed on the moving mechanism (1) and detection components (32) arranged at the hole opening of the deep hole (2) at intervals;
the detection assembly (32) comprises an imaging panel (322) which is arranged at the orifice of the deep hole (2) at intervals and is perpendicular to the axial lead of the deep hole (2), and two industrial cameras (321) which are symmetrically arranged outside the deep hole (2), wherein CCD lenses of the two industrial cameras (321) are focused on the imaging panel (322);
the profile detection mechanism (4), the profile detection mechanism (4) comprises a ranging sensor (42) fixed on the moving mechanism (1) and a driving component (41) for driving the ranging sensor (42) to rotate by taking the axis of the deep hole (2) as the center of a circle;
the initial positions of the structural spot source (31) and the ranging sensor (42) are located at the axis of the deep hole (2), light rays emitted by the structural spot source (31) extend along the axial direction of the deep hole (2) and face to the orifice of the deep hole (2), and a probe of the ranging sensor (42) faces to the inner wall of the deep hole (2).
2. The deep hole straightness and contour detection device according to claim 1, wherein the detection device further comprises an upper computer (5), and the upper computer (5) is internally provided with:
the image acquisition module (51) is used for receiving detection data acquired by the detection assembly (32) and the ranging sensor (42);
a data processing module (52), wherein the data processing module (52) is used for processing detection data acquired by the image acquisition module (51);
and the display module (53) is used for displaying the processing result of the detection data.
3. The deep hole straightness and contour detection device according to claim 2, characterized in that the driving assembly (41) is a pan-tilt motor;
the detection device also comprises a controller (7) and a hub motor (11) which are arranged on the moving mechanism (1);
the controller (7) is connected with the upper computer (5) through wireless communication so as to receive a control instruction sent by the upper computer (5);
the cradle head motor and the hub motor (11) are used for receiving control instructions transferred by the controller (7) so as to drive the moving mechanism (1) to move and the ranging sensor (42) to rotate.
4. A deep hole straightness and contour detection apparatus as defined in claim 3, characterized in that said controller (7) is further connected to said distance measuring sensor (42) and said structured spot source (31), respectively.
5. The deep hole straightness and contour detection device according to claim 1, characterized in that the detection device further comprises an adjusting screw (6) arranged perpendicular to the axis of the deep hole (2);
one end of the adjusting screw (6) is in threaded connection with the moving mechanism (1), and two sides of the other end of the adjusting screw are respectively fixedly connected with the driving assembly (41) and the structural spot source (31).
6. The deep hole straightness and contour detection device according to claim 4, characterized in that the detection device further comprises a lithium battery (8) fixed on the moving mechanism (1);
the lithium battery (8) is respectively and electrically connected with the controller (7), the structural spot source (31), the hub motor (11), the cradle head motor and the ranging sensor (42) to supply power to the lithium battery.
7. A method of detecting using a deep hole straightness and contour detection apparatus as defined in any one of claims 1 to 6, comprising the steps of:
step S1, placing the moving mechanism (1) at a certain axial position in the deep hole (2), starting the structural spot source (31) and the industrial camera (321), enabling light rays emitted by the structural spot source (31) to axially propagate to the imaging panel (322) along the deep hole (2) to form light spots, and acquiring images of the light spots by using CCD lenses of the two industrial cameras (321);
step S2, the upper computer (5) sends a control instruction to the controller (7), and the controller (7) distributes the control instruction to the driving assembly (41) so that the driving assembly (41) drives the ranging sensor (42) to rotate by taking the axle center of the deep hole (2) as the circle center;
opening the ranging sensor (42), and measuring the distance between the probe of the ranging sensor (42) and any busbar on the inner wall of the deep hole (2) in real time in the rotating process;
step S3, the industrial camera (321) and the ranging sensor (42) send detection data to the upper computer (5) and process to obtain the axle center and the inner contour of the deep hole (2) at the axial position;
step S4, the upper computer (5) sends a control instruction to the controller (7), and the controller (7) distributes the control instruction to the hub motor (11) to drive the moving mechanism (1) to move along any bus in the deep hole (2);
and in the moving process, repeating the steps S1-S3 to obtain the axle centers and the inner wall contours at different axial positions of the deep hole (2).
8. The method for detecting the straightness and the contour of the deep hole according to claim 7, wherein before the detection, the screwing depth of the adjusting screw (6) in the moving mechanism (1) is adjusted according to the theoretical inner diameter of the deep hole (2), so that the initial positions of the driving assembly (41) and the structural spot source (31) are positioned on the axis of the deep hole (2).
9. The method for detecting the straightness and the contour of the deep hole according to claim 7, wherein in the step S3, the upper computer (5) acquires detection data by using the image acquisition module (51), transmits the detection data to the data processing module (52) for processing, and sends the processing result to the display module (53) for display.
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