CN112415018A - Visual detection equipment with image collection function - Google Patents
Visual detection equipment with image collection function Download PDFInfo
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- CN112415018A CN112415018A CN202011215951.2A CN202011215951A CN112415018A CN 112415018 A CN112415018 A CN 112415018A CN 202011215951 A CN202011215951 A CN 202011215951A CN 112415018 A CN112415018 A CN 112415018A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/9515—Objects of complex shape, e.g. examined with use of a surface follower device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a visual detection device with an image collecting function, which comprises a circumferential sliding rail mechanism, a camera shooting mechanism and a transmission device, wherein the camera shooting mechanism is arranged on the circumferential sliding rail mechanism through a driving mechanism; the circumference slide rail mechanism is formed by sequentially connecting a plurality of arc slide rail pieces in a sliding manner, and the plurality of arc slide rail pieces just form a circumference when sliding relatively to the extreme position, and the camera shooting mechanism is arranged at the bottom of the arc slide rail pieces through a driving mechanism; the transmission device is arranged in the circumferential slide rail mechanism and is used for matching with a driving mechanism of the camera shooting mechanism to drive the plurality of arc slide rail pieces to do relative arc sliding motion; adjusting the relative angle between the circumferential slide rail mechanism and the mounting plate; the driving mechanism of the camera shooting mechanism is electrified to work, the fixed shaft drives the elastic belt to move, so that the arc slide rail pieces generate relative arc sliding, and the camera shooting mechanism finishes image shooting of a circle.
Description
Technical Field
The invention relates to the technical field of visual detection, in particular to a visual detection device with an image collection function.
Background
The visual detection means that a machine vision product (namely an image pickup device, divided into a CMOS and a CCD) is used for converting a picked target into an image signal, transmitting the image signal to a special image processing system, and converting the image signal into a digital signal according to information such as pixel distribution, brightness, color and the like.
The existing visual detection equipment is not provided with a better continuous loading mechanism, so that a camera mechanism body cannot well shoot at a good angle, for example, in the case where the height and the diameter depth are large, if the imaging means cannot be installed at the end of the apparatus body for use in conjunction with each other, the practical performance is poor, when a cylindrical workpiece is endoscopically viewed, the existing visual inspection is mostly carried out by adopting a camera assembly of a fixed machine position or adopting a plurality of camera assemblies with different angles, due to the limitation of the angle, the whole detailed structure of the cylindrical workpiece can not be accurately detected, the complete visual detection of a complex workpiece is deficient, and a fixed circular ring-shaped track is used for the sliding of the camera component, the fixation of the structure causes the poor combination with the workpiece, and the angle cannot be adjusted.
Disclosure of Invention
The invention aims to provide visual detection equipment with an image collecting function, and aims to solve the technical problem that in the prior art, the shooting angle of the visual detection equipment is fixed, and annular shooting detection and endoscopic shooting detection cannot be better completed.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
a visual inspection apparatus with image collection functionality, comprising:
the circumferential sliding rail mechanism comprises a plurality of arc sliding rail pieces which are sequentially arranged from inside to outside, and the adjacent arc sliding rail pieces can be driven to relatively slide along the extending direction;
the transmission device is arranged in the circumferential slide rail mechanism, connected with the driving mechanism and used for driving the arc slide rail pieces to slide relatively; the transmission device comprises fixed-winding shafts arranged at two ends of the arc-shaped sliding rail piece and elastic belts which sequentially pass around the fixed-winding shafts at two ends of each arc-shaped sliding rail piece;
the camera shooting mechanism is arranged on any one of the arc slide rail pieces through a driving mechanism, and the driving mechanism is used for driving the camera shooting mechanism to rotate; an output shaft of the driving mechanism is connected with the fixed shaft;
the support device for mounting the circumferential slide rail mechanism comprises a base and a longitudinal support frame, wherein the base is provided with an arc-shaped guide groove, and the longitudinal support frame is mounted in the arc-shaped guide groove through an arc-shaped seat; the base is provided with an adjusting rotating wheel for driving the arc-shaped seat to move in the arc-shaped guide groove, and the adjusting rotating wheel is positioned on one side of the arc-shaped guide groove; the longitudinal support frame is vertically connected with an installation plate, one end of the installation plate is provided with a guide ring, the installation plate is provided with a micro motor, and the output end of the micro motor is coaxial with the guide ring; the end part of the arc slide rail piece positioned at the innermost side is rotationally connected with the guide ring;
and the output shaft of the micro motor is in driving connection with the transmission device.
Optionally, the arc-shaped sliding rail part comprises an arc-shaped main body, the arc-shaped main body comprises two opposite side walls and a vertical plate connected between the two side walls, and the longitudinal section of the arc-shaped main body is in an i shape;
the inner surfaces of the two side walls of the arc-shaped main body are respectively provided with a protruding strip, the outer surfaces of the two side walls of the arc-shaped main body are respectively provided with an inner groove for the embedding of the protruding strips of the arc-shaped main body to be adjacent, and the arc-shaped sliding rail pieces are adjacent to each other and embedded in the inner grooves in a sliding connection mode through the protruding strips.
Optionally, the vertical limiting holes for the elastic belts to pass through are formed in the front end and the rear end of the vertical plate in the middle of the arc-shaped main body.
Optionally, the inner groove extends along the extension direction of the arc-shaped main body.
Optionally, the camera shooting mechanism is installed at the end part of the arc-shaped main body located on the outer side through a driving mechanism, the camera shooting mechanism comprises an installation base, an industrial CCD camera is installed on the installation base through a spherical hinge, the industrial CCD camera is connected with an external power supply, and the driving mechanism is installed on one side of the installation base.
Optionally, a nested scale ring is arranged at the end of the arc-shaped main body which is located at the innermost side, a fixed knob is radially arranged at the bottom of the nested scale ring, and an inner ring groove for rotatably installing the guide ring is formed in the nested scale ring.
Optionally, a fixed shaft is vertically arranged at each of the front end and the rear end of each of the vertical plates of the arc-shaped main body, a displacement groove into which a rotating shaft of the fixed shaft is inserted is formed in the surface of the arc-shaped main body, the fixed shaft is arranged along the length direction of the arc-shaped main body, the rotating shaft of the fixed shaft extends into the displacement groove, an output shaft of the micro motor is in key connection with the rotating shaft of the fixed shaft, and an output shaft of the driving mechanism is in key connection with the rotating shaft of the fixed shaft;
the fixed shaft and the end part of the vertical plate arranged in the middle of the arc-shaped main body form a limiting hole for the elastic belt to pass through, and when the mounting base of the camera shooting mechanism is fixed on the arc-shaped main body through a screw, the fixed shaft moves towards the end part of the vertical plate of the arc-shaped main body in a displacement groove and is fixed, so that the width of the limiting hole is reduced;
and two ends of the fixed shaft positioned on the innermost arc-shaped main body are arranged on the arc-shaped main body through a volute spiral spring.
Compared with the prior art, the invention has the following beneficial effects:
the invention utilizes the plurality of arc slide rail pieces to be sequentially connected in a sliding way, and forms a complete circumference when all the arc slide rail pieces slide to the limit relative to the arc, so that the camera mechanism can carry out circular motion in a plane leveling surface, and complete image shooting of a visually detected object in the circumferential direction is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic structural diagram of a circumferential slide mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a bracket assembly according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of the circumferential slide mechanism according to the present invention, wherein all the arc-shaped bodies slide to the extreme positions;
fig. 4 is a schematic structural diagram providing a front view of an arc-shaped body according to an embodiment of the present invention.
The reference numerals in the drawings denote the following, respectively:
1-a circumferential slide rail mechanism; 2-a camera mechanism; 3-a transmission device; 4-a drive mechanism; 5-a bracket device; 6-an arc-shaped main body; 7-raised strips; 8-inner grooves; 9-a vertical plate; 10-a limiting hole; 11-nesting the scale ring; 12-fixed torque; 13-inner ring groove; 14-a displacement groove;
101-arc slide rail member; 201-mounting a base; 202-industrial CCD camera;
301-fixed axis; 302-an elastic band;
501-base; 502-arc seat; 503-arc guide groove; 504-a regulating wheel; 505-a mounting plate; 506-a guide ring; 507-a micro motor; 508-longitudinal support.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, the present invention provides a visual inspection apparatus having an image collecting function,
the method comprises the following steps: the circumference slide rail mechanism 1 is formed by sequentially connecting a plurality of arc slide rail pieces 101 in a sliding manner, and a circumference is just formed when the arc slide rail pieces 101 slide to the limit position relatively.
The camera shooting mechanism 2 is installed at any one of the end parts of the arc slide rail pieces 101 of the circular slide rail mechanism 1 through a driving mechanism 4, and the driving mechanism 4 is used for driving the camera shooting mechanism 2 to rotate circularly in the state that the camera shooting mechanism 2 collects images.
The transmission device 3 is installed in the circumferential slide rail mechanism 1, and the transmission device 3 is used for being connected with the driving mechanism 4 of the camera shooting mechanism 2 and is used for driving the driving mechanism 4 to drive the circular arc slide rail piece 101 to do relative arc sliding motion under the state that the camera shooting mechanism 2 carries out circumferential rotation, so that the camera shooting mechanism 2 is used for collecting images of circumferential movement.
The driving mechanism 4 is specifically a micro motor or a steering engine for driving the camera shooting mechanism 2 to rotate.
According to the invention, the arc slide rail pieces 101 are sequentially connected in a sliding manner, and a complete circumference is formed when all the arc slide rail pieces 101 slide to the limit relative to the arc, so that the camera mechanism can shoot complete images of objects to be visually detected in the circumferential direction under the driving of the arc slide rail pieces 101, and more angles can be shot in the objects to be visually detected in a complex structure, such as locomotive springs or cylindrical pieces, radial cutting can be carried out through the circumferential slide rail mechanism 1, and then the visual detection shooting in the circumferential direction is completed after the cutting is carried out.
In the actual use process of the circular slide rail mechanism 1, the height position of the camera mechanism 2 needs to be installed and fixed according to the actual working environment, and the angle is adjusted according to the actual visual detection target object, and when the carrier position of the camera mechanism 2 is already fixed, the existing visual detection lacks a certain real-time degree of freedom adjustment.
For this purpose, the visual inspection apparatus further comprises a support device 5 for mounting the circumferential slide rail mechanism 1, wherein the support device 5 comprises a base 501 and a longitudinal support frame 508, wherein the longitudinal support frame 508 may specifically be a rail or a slide rail structure.
The longitudinal support frame 508 is installed in an arc guide groove 503 arranged on the base 501 through an arc seat 502, an adjusting rotating wheel 504 for driving the arc seat 502 to move in the arc guide groove 503 is arranged at the middle position of the arc guide groove 503, and an installation plate 505 is vertically connected to the longitudinal support frame 508, after the position and the angle of the camera shooting mechanism 2 are fixed, the adjusting rotating wheel 504 is rotated, and the adjusting rotating wheel 504 is meshed with the arc seat 502 to drive the micro distance adjustment of the arc seat 502 in the arc guide groove 503, so that the position and the angle of the camera shooting mechanism 2 are further improved, and meanwhile, when the endoscopic detection is carried out, the distance between a camera of the camera shooting mechanism 2 and a detected object is short, a clear result can not be obtained sometimes only by the algorithm focusing of the camera, and the actual detection result of the camera shooting mechanism 2 is influenced.
A guide ring 506 is vertically arranged in the middle of one end of the mounting plate 505, a micro motor 507 is arranged in the side wall of the mounting plate 505 opposite to the center of the circle of the guide ring 506, the end part of the arc slide rail part 101 positioned at the innermost side is rotatably connected with the guide ring 506, and the output shaft of the micro motor 507 is connected with the transmission device 3.
The transmission device 3 comprises a fixed shaft 301 arranged in both sides of the circular arc slide rail members 101, and an elastic belt 302 wound around the end of each circular arc slide rail member 101 on the fixed shaft 301 in sequence.
The fixed shaft 301 is arranged inside one side of the arc-shaped sliding rail part 101 located at the innermost side and inside the other side of the arc-shaped sliding rail part 101 located at the outermost side, the elastic band 302 penetrates out from one end, far away from the fixed shaft 301, of the arc-shaped sliding rail part 101 located at the innermost side, extends to one end, close to the fixed shaft 301, of the next-stage arc-shaped sliding rail part 101 connected to the arc-shaped sliding rail part 101 located at the innermost side in a sliding mode, and the elastic band 302 extends in the penetrating mode until the tail end of the elastic band 302 is connected to the fixed shaft 301 of the arc-shaped sliding rail part 101 located at the outermost side.
The arc-shaped sliding rail part 101 comprises an arc-shaped main body 6, wherein the arc-shaped main body 6 comprises two opposite side walls and a vertical plate 9 connected between the two side walls, so that the longitudinal section of the arc-shaped main body 6 is I-shaped; the internal surface of the both sides wall of arc main part 6 is equipped with protruding strip 7 respectively, the surface of the both sides wall of arc main part is equipped with respectively and supplies adjacently the inner groovy 8 that the protruding strip 7 of arc main part 6 imbeds, adjacent pass through between the circular arc slide rail piece 101 protruding strip 7 imbeds inner groovy 8 sliding connection.
The inner groovy 8 extends along the relative slip direction of arc main part 6, and is close to the centre of a circle of arc main part 6 gradually, and the total distance that extends the centre of a circle of partial deviation arc main part 6 on the relative slip direction of arc main part 6 along inner groovy 8 on all arc main parts 6 is the width sum of all arc main parts 6 between the arc main part 6 of innermost and the arc main part 6 of the outside to realize end to end of the arc main part 6 of innermost and the arc main part 6 of the outside.
Furthermore, the invention also intentionally sets the head and the tail of the arc main body 6 at the innermost side and the arc main body 6 at the outermost side in a buckling connection mode, and the camera mechanism 2 slides on the outer edge of the arc main body 6 through the driving mechanism 4, so that the connection with the object to be visually detected and the circumferential visual detection can be completed on the basis of being separated from the bracket device.
The camera shooting mechanism 2 is installed at the end part of the arc-shaped main body 6 at the outermost side through the driving mechanism 4, the output shaft of the driving mechanism 4 is connected with the fixed shaft 301 together, the camera shooting mechanism 2 comprises an installation base 201, the installation base 201 is provided with an industrial CCD camera 202 connected with an external power supply for supplying power through a spherical hinge, and the driving mechanism 4 is installed at one side of the installation base 201.
For this purpose, a nested scale ring 11 is arranged on the end of the innermost arc-shaped body 6, a fixed knob 12 is radially arranged at the bottom of the nested scale ring 11, and an inner annular groove 13 for rotatably mounting the guide ring 506 is arranged in the nested scale ring 11.
The vertical plate 9 of each arc main body 6 is internally vertically provided with a fixed shaft 301 in the front and back ends, the rotating shaft of the fixed shaft 301 extends to the surface of the arc main body 6 to form a displacement groove 14 for the fixed shaft 301 to move along the length direction of the arc main body 6, the output shaft of the micro motor 507 is connected with the rotating shaft of the fixed shaft 301, and the output shaft of the driving mechanism 4 is connected with the rotating shaft of the fixed shaft 301 in a key mode.
In order to make the installation position of the industrial CCD camera 202 adjustable to obtain a larger shooting angle and a larger shooting range, the end of each arc-shaped body 6 is provided with an installation position for installing the industrial CCD camera 202.
Wherein, the fixed axle 301 and the end of the vertical plate arranged in the middle of the arc main body 6 form a limit hole 10 for the elastic belt 302 to pass through, when the mounting base 201 of the camera mechanism 2 is fixed on the arc main body 6 by screws, the fixed axle 301 moves and is fixed in the displacement groove 14 to the end of the vertical plate 9 of the arc main body 6, and the width of the limit hole 10 is reduced, at this time, the driving mechanism 4 of the camera mechanism 2 is mounted on the mounting position, the fixed axle here presses the part of the elastic belt 302, the rotation winding and traction of the elastic belt 302 are realized only by the work of the micro motor 507, the arc main body 6 at the mounting position of the camera mechanism 2 and the arc main body 6 driven by the micro motor 507, and all the arc main bodies 6 between the two generate relative sliding, and the arc main bodies 6 outside the camera mechanism 2 stop relative sliding due to the clamping effect of the fixed axle 301, furthermore, through asynchronous control of the driving mechanism 4 and the micro motor 507, synchronous transmission of the elastic belt 302 is realized, the tension of the elastic belt 302 during working is kept constant, whether the driving mechanism 4 is adopted or the micro motor 507 is used for driving the elastic belt 302 to expand and contract can be determined according to different working environments, and the stability and the versatility of image acquisition and detection of the camera mechanism 2 in the circular process are improved.
The both ends of deciding on the axle 301 that lie in on the most inboard arc main part 6 are installed on arc main part 6 through the scroll spring, and its effect keeps deciding to have certain restoring force around axle 301, and the scroll spring acquires elastic potential energy in actuating mechanism 4 and micro motor 507's rotation work to improve elastic band 302's rate of tension, make the relative slip of a plurality of arc main parts more stable, and then improve industry CCD camera 202's the shooting stability, improve and shoot the quality.
The embodiment of the invention provides a visual detection method with an image collection function, which comprises the following steps:
s100, mounting the camera shooting mechanism at the bottom of the end of any arc slide rail piece except the innermost side of the circumferential slide rail mechanism, and connecting an output shaft key of a driving mechanism of the camera shooting mechanism with a fixed shaft;
s200, embedding a nested scale ring at the end part of the arc slide rail piece at the innermost side into a guide ring, connecting a fixed shaft of the nested scale ring with a micro motor, and adjusting the relative angle between a circumferential slide rail mechanism and an installation plate through the relative rotation of the nested scale ring and the guide ring;
s300, electrifying a driving mechanism of the camera shooting mechanism to work, namely pulling the elastic belt around the fixed shaft to enable the arc slide rail pieces to generate relative arc-shaped sliding until the end part of the camera shooting mechanism finishes shooting a circumferential image.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (7)
1. A visual inspection apparatus with image collection, comprising:
the circumferential sliding rail mechanism (1) comprises a plurality of arc sliding rail pieces (101) which are sequentially arranged from inside to outside, and the adjacent arc sliding rail pieces (101) can be driven to relatively slide along the extension direction;
the transmission device (3) is arranged in the circumferential slide rail mechanism (1), is connected with the driving mechanism (4) and is used for driving the arc slide rail pieces (101) to relatively slide; the transmission device (3) comprises fixed-pivoting shafts (301) arranged at two ends of the arc-shaped sliding rail piece (101) and elastic belts (302) which sequentially pass around the fixed-pivoting shafts (301) at two ends of each arc-shaped sliding rail piece (101);
the camera shooting mechanism (2) is arranged on any one of the arc-shaped sliding rail pieces (101) through a driving mechanism (4), and the driving mechanism (4) is used for driving the camera shooting mechanism (2) to rotate; an output shaft of the driving mechanism (4) is connected with the fixed shaft (301);
the support device (5) used for mounting the circumferential sliding rail mechanism (1) comprises a base (501) and a longitudinal support frame (508), wherein an arc-shaped guide groove (503) is formed in the base (501), and the longitudinal support frame (508) is mounted in the arc-shaped guide groove (503) through an arc-shaped seat (502); an adjusting rotating wheel (504) used for driving the arc-shaped seat (502) to move in the arc-shaped guide groove (503) is arranged on the base (501), and the adjusting rotating wheel (504) is positioned on one side of the arc-shaped guide groove (503); a mounting plate (505) is vertically connected to the longitudinal support frame (508), a guide ring (506) is arranged at one end of the mounting plate (505), a micro motor (507) is arranged on the mounting plate (505), and the output end of the micro motor (507) is coaxially arranged with the guide ring (506); the end part of the arc slide rail piece (101) positioned at the innermost side is rotationally connected with the guide ring (506);
the output shaft of the micro motor (507) is in driving connection with the transmission device (3).
2. The visual inspection apparatus with image collection function according to claim 1, wherein the arc-shaped sliding rail member (101) comprises an arc-shaped main body (6), the arc-shaped main body (6) comprises two opposite side walls and a riser (9) connected between the two side walls, so that the arc-shaped main body (6) has an I-shaped longitudinal section;
the internal surface of the both sides wall of arc main part (6) is equipped with protruding strip (7) respectively, the surface of the both sides wall of arc main part is equipped with respectively and supplies adjacent inner groovy (8) of the protruding strip (7) embedding of arc main part (6), adjacent pass through between circular arc slide rail spare (101) protruding strip (7) embedding inner groovy (8) internal sliding connection.
3. The visual inspection apparatus with image collection function according to claim 2, wherein the vertical plate (9) disposed in the middle of the arc-shaped main body (6) is vertically provided with a limiting hole (10) at the front end and the rear end for the elastic belt (302) to pass through.
4. A visual inspection apparatus with image collection capability according to claim 3, wherein said inner recess (8) extends along the extension direction of said arc-shaped body (6).
5. The visual inspection equipment with image collection function according to claim 3, wherein the camera mechanism (2) is installed at the end of the arc-shaped main body (6) located at the outer side through a driving mechanism (4), the camera mechanism (2) comprises a mounting base (201), the mounting base (201) is provided with an industrial CCD camera (202) through a spherical hinge, the industrial CCD camera (202) is connected with an external power supply, and the driving mechanism (4) is installed at one side of the mounting base (201).
6. The visual inspection apparatus with image collection function according to claim 1, wherein a nested scale ring (11) is disposed on the end of the arc-shaped body (6) located at the innermost side, a fixed knob (12) is radially disposed at the bottom of the nested scale ring (11), and an inner ring groove (13) for rotatably mounting the guide ring (506) is disposed in the nested scale ring (11).
7. The visual inspection device with the image collection function according to claim 2, wherein the front end and the rear end of the vertical plate (9) of each arc-shaped main body (6) are vertically provided with a fixed shaft (301), the surface of the arc-shaped main body (6) is provided with a displacement groove (14) for inserting the rotation shaft of the fixed shaft (301), the displacement groove is arranged along the length direction of the arc-shaped main body (6), the rotation shaft of the fixed shaft (301) extends into the displacement groove (14), the output shaft of the micro motor (507) is in key connection with the rotation shaft of the fixed shaft (301), and the output shaft of the driving mechanism (4) is in key connection with the rotation shaft of the fixed shaft (301);
the fixed shaft (301) and the end part of a vertical plate arranged in the middle of the arc-shaped main body (6) form a limiting hole (10) for the elastic belt (302) to pass through, when the mounting base (201) of the camera shooting mechanism (2) is fixed on the arc-shaped main body (6) through a screw, the fixed shaft (301) moves towards the end part of the vertical plate (9) of the arc-shaped main body (6) in a displacement groove (14) and is fixed, and the width of the limiting hole (10) is reduced;
the two ends of the fixed shaft (301) positioned on the innermost arc-shaped main body (6) are arranged on the arc-shaped main body (6) through spiral springs.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113484323A (en) * | 2021-08-17 | 2021-10-08 | 香港中文大学（深圳） | Bridge main push-towing rope detection device |
| CN117929415A (en) * | 2024-03-22 | 2024-04-26 | 山西潇河建筑产业有限公司 | High-precision intelligent detection machine for digital detection of steel member |
| CN117929415B (en) * | 2024-03-22 | 2024-07-09 | 山西潇河建筑产业有限公司 | High-precision intelligent detection machine for digital detection of steel member |
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