CN114353693B - Special handheld vector lever for large-scale three-dimensional space integral measurement positioning instrument - Google Patents
Special handheld vector lever for large-scale three-dimensional space integral measurement positioning instrument Download PDFInfo
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- CN114353693B CN114353693B CN202111628914.9A CN202111628914A CN114353693B CN 114353693 B CN114353693 B CN 114353693B CN 202111628914 A CN202111628914 A CN 202111628914A CN 114353693 B CN114353693 B CN 114353693B
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- 238000005259 measurement Methods 0.000 title claims abstract description 65
- 239000002184 metal Substances 0.000 claims abstract description 107
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- 238000007789 sealing Methods 0.000 claims description 24
- 239000000523 sample Substances 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 3
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- 238000010586 diagram Methods 0.000 description 16
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 11
- 210000000078 claw Anatomy 0.000 description 8
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- 238000012360 testing method Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
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- 230000009194 climbing Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The invention discloses a special handheld vector rod for a large-scale three-dimensional space integral measurement positioning instrument, which comprises an installation unit, a pipe body unit and a measuring needle, wherein three metal shells are arranged, signal receiving modules are arranged in the metal shells, connecting lines of the three metal shells are triangular, and the relative positions among three groups of signal receiving modules are fixed by utilizing the metal shells and the pipe body unit, so that the positioning precision of the three groups of signal receiving modules is improved, the dependence on a signal reference source of the large-scale three-dimensional space positioning instrument in the calibration process is reduced, the problem of amplifying calibration errors of a transfer coordinate system in the traditional calibration process is avoided, and the calibration and measurement precision of measurement equipment are further improved; the invention sets three calibration points at intervals in the detection range, thereby saving the production cost while ensuring the vector lever calibration precision. In addition, the invention omits six-to-eight-point redundant design of claw-type structures in the prior art, reduces space occupation rate and improves equipment adaptability.
Description
Technical Field
The invention relates to the technical field of measurement, in particular to a special handheld vector rod for a large-scale three-dimensional space integral measurement positioning instrument.
Background
The large-scale three-dimensional space integral measuring and positioning instrument is mainly applied to the aerospace fields such as aircraft manufacturing, satellite manufacturing and the like, the fields such as automobiles, shipbuilding, industrial measurement and the like, and the main functions of the instrument are embodied in real-time monitoring, mobile navigation, online detection, three-dimensional measurement of the space dimension of a large part, reverse engineering and the like. The handheld vector bar matched with the large-scale three-dimensional space integral measurement positioning instrument is necessary measurement equipment in a large-scale space measurement field with a complex shielding environment, a plurality of laser signal receiving modules are embedded, and the embedded signal receiving modules and the point of the handheld vector bar show a specific relative position relationship in space. When the tip end part of the handheld vector rod is contacted with the blocked target to be measured, the embedded signal receiving module is in a detectable state in the space measuring field, and the detection and calculation of the blocked target measuring point can be completed according to the specific position relation between the vector rod tip point and the embedded signal receiving module and the matched algorithm by transmitting the signal detected and transmitted by the embedded signal receiving module to the system processing unit for calculation.
The traditional handheld measurement tool style that is more common at present adopts six claws or eight claw distributed metal structure spare in most, and the main assembly mode between each structure spare is the concatenation equipment, and the structure is whole does not have the space relation positioning accuracy requirement to embedded signal receiving module, and for cooperation operating personnel handheld use, and whole length is generally less, and the maximum size is not greater than 300mm basically, but this kind of structural style has following drawback:
1. the dependence on the system signal reference source is too high.
The traditional claw-type distributed handheld measurement tool does not require the positioning precision relation among all embedded signal receiving modules, mainly realizes the spatial relation calibration on all embedded signal receiving modules by using a large-scale three-dimensional space positioner system, and omits the introduction and amplification of a rotating coordinate system error in the process of calibrating the handheld vector rod of the large-scale three-dimensional space positioner. After the error is amplified, the error is still different from the calibration and calibration precision requirement, so that the dependence of the traditional claw-type vector rod on the overhigh signal reference source has great restriction on the improvement of the measurement precision.
2. The unnecessary production cost is too high.
The traditional claw type handheld measurement tool is usually in a six-claw or eight-claw form, and the main design purpose is to increase the number of detection points on the vector rod, so that the resolving precision of a calibration algorithm is improved. However, based on the principle of laser space intersection of a large-scale three-dimensional space locator during measurement, the increase of the calibration points in a small range is not obvious for improving the precision. In addition, the radial symmetrical distribution structure enables the calibration points to be basically located on the same plane, so that the actual directions of the signal receiving modules installed in the laser detection device are basically consistent when the laser detection device is used, the laser detection state is basically unified, and the precision improvement effect is not achieved. Therefore, on the premise that the six or eight-jaw design of the traditional handheld measurement tool is basically redundant, increasing the number of internally installed signal receiving modules cannot effectively improve the vector rod calibration accuracy, and excessive production cost is caused.
3. The field applicability is low.
In order to realize stable distribution of the embedded signal receiving modules, the traditional claw type handheld measuring tool structure is basically in a rotary distribution mode taking a fixed point as a center, so that the solution proportional relation among the embedded signal receiving modules cannot be reasonably arranged in space, more serious, the transverse dead space of the distribution mode occupies too much space, the claw type handheld measuring tool structure is not suitable for freely rotating and swinging in an environment with complex shielding conditions, and is very unfriendly to operators on site and extremely low in site applicability.
Therefore, how to change the current situation that the calibration precision of the claw-type handheld measurement tool is lower and the unnecessary cost is high in the prior art becomes a problem to be solved urgently by the person skilled in the art.
Disclosure of Invention
The invention aims to provide a special handheld vector rod for a large-scale three-dimensional space integral measurement positioning instrument, so as to solve the problems in the prior art, improve the calibration precision of a handheld measurement tool and provide convenience for assembly and manufacture of the handheld measurement tool.
In order to achieve the above object, the present invention provides the following solutions: the invention provides a special handheld vector bar for a large-scale three-dimensional space integral measurement positioning instrument, which comprises the following components:
the mounting unit comprises three metal shells, wherein connecting lines of the three metal shells are triangular, and a signal receiving module is arranged in the metal shells;
the pipe body unit is connected with the metal shell;
the two metal shells are coaxial with the axis of the measuring needle, and one of the two metal shells coaxially arranged with the axis of the measuring needle is connected with the measuring needle.
Preferably, the metal shell is connected with a gland, the signal receiving module is located in a cavity surrounded by the metal shell and the gland, and the gland is detachably connected with the metal shell and corresponds to the metal shell one by one.
Preferably, the metal shell is further connected with a sealing element, the protruding structure of the signal receiving module can protrude from the sealing element, and the sealing element is detachably connected with the metal shell and corresponds to the metal shell one by one.
Preferably, the gland and the sealing element are arranged on two adjacent side surfaces of the metal shell, the gland and the sealing element are matched to fix the relative positions of the signal receiving module and the metal shell, and the gland and the sealing element are flush with the outer surface of the metal shell.
Preferably, the pipe body unit comprises a main pipe body and two branch pipe bodies which are connected, wherein the two metal shells are arranged at two ends of the main pipe body, one ends of the two branch pipe bodies are respectively connected with the main pipe body, one ends of the two branch pipe bodies, which are far away from the main pipe body, are respectively connected with the other metal shells, and the two branch pipe bodies and the main pipe body form an isosceles trapezoid structure.
Preferably, the measuring needle comprises a first connecting section, a rod body section and a needle-shaped probe which are sequentially connected, wherein the first connecting section can be connected with the metal shell, and the needle-shaped probe is of a conical structure.
Preferably, the measuring needle further comprises a limiting block, the limiting block is located between the first connecting section and the rod body section, the metal shell is provided with a groove matched with the limiting block, the limiting block can extend into the groove, and the limiting block is matched with the groove to limit the limiting position of the measuring needle and the metal shell.
Preferably, the measuring needle is connected with a cap, a second connecting section is further arranged between the rod body section and the needle-shaped probe, the needle-shaped probe stretches into the cap, and the cap is detachably connected with the second connecting section.
Preferably, the first connecting section is in threaded connection with the metal shell, and the second connecting section is in threaded connection with the cap.
Compared with the prior art, the invention has the following technical effects: the invention relates to a special handheld vector bar for a large-scale three-dimensional space integral measurement positioning instrument, which comprises a mounting unit, a pipe body unit and a measuring needle, wherein the mounting unit comprises three metal shells, the connecting lines of the three metal shells are triangular, and a signal receiving module is arranged in each metal shell; the pipe body unit is connected with the metal shell; the straight line where the two metal shells are located is coaxial with the axis of the measuring needle, and one of the two metal shells which are coaxially arranged with the axis of the measuring needle is connected with the measuring needle.
According to the special handheld vector lever for the large-scale three-dimensional space integral measurement positioning instrument, three metal shells are arranged, the signal receiving modules are arranged in the metal shells, the connecting lines of the three metal shells are triangular, and the relative positions among the three groups of signal receiving modules are fixed by utilizing the metal shells and the pipe body units, so that the positioning precision of the three groups of signal receiving modules is improved, the dependence on a signal reference source of the large-scale three-dimensional space positioning instrument in the calibration process is reduced, the problem of amplifying calibration errors of a transfer coordinate system in the traditional calibration process is avoided, and the calibration and measurement precision of measurement equipment are further improved; the invention sets three calibration points at intervals in the detection range, thereby saving the production cost while ensuring the vector lever calibration precision. In addition, the special handheld vector bar for the large-scale three-dimensional space integral measurement positioning instrument omits six-to-eight-point redundant design of the claw structure in the prior art, reduces space occupation rate and improves equipment adaptability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a structure of a special handheld vector bar for a large-scale three-dimensional space integral measurement positioning instrument;
FIG. 2 is a schematic diagram of a front view of a special handheld vector bar for a large-scale three-dimensional space integral measurement positioning instrument;
FIG. 3 is a schematic diagram of a cut-away structure of a special hand-held vector bar for a large-scale three-dimensional space integral measurement positioning instrument of the invention;
FIG. 4 is a schematic view of the bottom view structure of the special handheld vector bar for the large-scale three-dimensional space integral measurement positioning instrument of the invention;
FIG. 5 is a schematic view showing the disassembly of a part of the structure of a special handheld vector bar for a large-scale three-dimensional space integral measurement positioning instrument;
FIG. 6 is a schematic diagram showing the assembly of the cap, stylus and body of the special handheld vector bar for the large-scale three-dimensional space integral measuring and positioning instrument of the invention;
FIG. 7 is a schematic diagram of the structure of a stylus of the invention for a large-scale three-dimensional spatial integral measurement locator special-purpose hand-held vector lever;
FIG. 8 is a schematic structural view of a pipe unit of a special handheld vector bar for a large-scale three-dimensional space integral measurement positioning instrument of the invention;
fig. 9 is a schematic diagram showing the disassembly of a pipe body unit of a special handheld vector bar for a large-scale three-dimensional space integral measurement positioning instrument.
Wherein 1 is the installation unit, 101 is the metal casing, 102 is the gland, 103 sealing member, 2 is the body of pipe unit, 201 is the main body, 202 is the branch body, 3 is the measuring pin, 301 is the first linkage segment, 302 is the body of rod section, 303 is needle probe, 304 is the locating block, 305 is the second linkage segment, 4 is the cap.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a special handheld vector rod for a large-scale three-dimensional space integral measurement positioning instrument, so as to solve the problems in the prior art, improve the calibration precision of a handheld measurement tool and provide convenience for assembly and manufacture of the handheld measurement tool.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1 to 9, fig. 1 is a schematic structural diagram of a special handheld vector lever for a large-scale three-dimensional space integrated measurement positioning apparatus according to the present invention (a signal receiving module is not shown), fig. 2 is a schematic front view structural diagram of a special handheld vector lever for a large-scale three-dimensional space integrated measurement positioning apparatus according to the present invention, fig. 3 is a schematic cut-away structural diagram of a special handheld vector lever for a large-scale three-dimensional space integrated measurement positioning apparatus according to the present invention, fig. 4 is a schematic bottom view structural diagram of a special handheld vector lever for a large-scale three-dimensional space integrated measurement positioning apparatus according to the present invention, fig. 5 is a schematic partial structural disassembly diagram of a special handheld vector lever for a large-scale three-dimensional space integrated measurement positioning apparatus according to the present invention, fig. 6 is a schematic cover, a needle, and a main assembly diagram of a special handheld vector lever for a large-scale three-dimensional space integrated measurement positioning apparatus according to the present invention, fig. 7 is a schematic structural diagram of a needle for a special handheld vector lever for a large-scale three-dimensional space integrated measurement positioning apparatus according to the present invention, fig. 8 is a schematic structural diagram of a tube unit for a special handheld vector lever for a large-scale three-dimensional space integrated measurement positioning apparatus according to the present invention, and fig. 9 is a schematic diagram of a special structural diagram for a special handheld vector lever for a large-scale three-dimensional space integrated measurement apparatus for a special-dimensional apparatus according to the present invention.
The invention provides a special handheld vector bar for a large-scale three-dimensional space integral measurement positioning instrument, which comprises a mounting unit 1, a pipe body unit 2 and a measuring needle 3, wherein the mounting unit 1 comprises three metal shells 101, the connecting lines of the three metal shells 101 are triangular, and a signal receiving module is arranged in the metal shells 101; the pipe body unit 2 is connected with the metal shell 101; wherein the straight line where the two metal shells 101 are located is coaxial with the axis of the measuring pin 3, and one of the two metal shells 101 coaxially arranged with the axis of the measuring pin 3 is connected with the measuring pin 3.
According to the special handheld vector lever for the large-scale three-dimensional space integral measurement positioning instrument, three metal shells 101 are arranged, signal receiving modules are arranged in the metal shells 101, connecting lines of the three metal shells 101 are triangular, and the relative positions among the three groups of signal receiving modules are fixed by utilizing the metal shells 101 and the pipe body unit 2, so that the positioning precision of the three groups of signal receiving modules is improved, the dependence on a signal reference source of the large-scale three-dimensional space positioning instrument in the calibration process is reduced, the problem of amplifying calibration errors of a transfer coordinate system in the traditional calibration process is avoided, and the calibration and measurement precision of measurement equipment are improved; the invention sets three calibration points at intervals in the detection range, thereby saving the production cost while ensuring the vector lever calibration precision. In addition, the special handheld vector bar for the large-scale three-dimensional space integral measurement positioning instrument omits six-to-eight-point redundant design of the claw structure in the prior art, reduces space occupation rate and improves equipment adaptability.
The metal shell 101 is connected with the gland 102, the signal receiving module is located in a cavity surrounded by the metal shell 101 and the gland 102, the gland 102 is detachably connected with the metal shell 101 and corresponds to the metal shell 101 one by one, the metal shell 101 is provided with a cylindrical hole capable of containing the signal receiving module, the inner diameter size and the form tolerance of the cylindrical hole are matched with the outer diameter size and the tolerance of the signal receiving module, the depth form tolerance of the cylindrical hole is matched with the outline size of the signal receiving module, the precise matching with the signal receiving module of the large-scale three-dimensional space locator can be realized, the metal shell 101 is provided with a concave matching surface matched with the gland 102, the gland 102 is located in the concave matching surface of the metal shell 101, the metal shell 101 is matched with the gland 102, a stable installation foundation is provided for the signal receiving module, and the metal shell 101 is stable in structure, the stability of the signal receiving module is effectively guaranteed, and the positioning precision of the three groups of the signal receiving modules is improved.
Specifically, the metal shell 101 is further connected with the sealing element 103, the protruding structure of the signal receiving module can be protruded out of the sealing element 103, the signal receiving module can be conveniently connected with external matched equipment in a wiring mode, meanwhile, the stability of the signal receiving module is further improved through the sealing element 103, the metal shell 101 is provided with a long arc-shaped hole matched with the sealing element 103, the sealing element 103 is located in the long arc-shaped hole of the metal shell 101, and the sealing element 103 is detachably connected with the metal shell 101 in one-to-one correspondence.
In this embodiment, the gland 102 and the sealing element 103 are disposed on two adjacent sides of the metal casing 101, and the gland 102 and the sealing element 103 are matched to fix the relative positions of the signal receiving module and the metal casing 101, so that the signal receiving module is located in a closed space surrounded by the metal casing 101, the gland 102 and the sealing element 103, the freedom degree of the signal receiving module is completely limited, the working reliability of the signal receiving module is improved, the gland 102 is located in a concave matching surface of the metal casing 101, the sealing element 103 is located in a long arc hole of the metal casing 101, the gland 102 and the sealing element 103 are flush with the outer surface of the metal casing 101, and the structural integrity and the aesthetic property are improved. In this embodiment, the gland 102 and the seal 103 are detachably connected to the metal housing 101 by screws, respectively, and are fastened and detached easily.
More specifically, the pipe body unit 2 includes a main pipe body 201 and two branch pipe bodies 202 connected to each other, the two metal shells 101 are disposed at two ends of the main pipe body 201, one ends of the two branch pipe bodies 202 are respectively connected to the main pipe body 201, one ends of the two branch pipe bodies 202, which are far from the main pipe body 201, are respectively connected to the other metal shells 101, and the two branch pipe bodies 202 and the main pipe body 201 enclose an isosceles trapezoid structure. The main pipe body 201 is provided with a connecting hole for connecting with the branch pipe body 202, and the main pipe body 201, the branch pipe body 202, the pipe body unit 2 and the metal shell 101 can be connected in an adhesive mode, so that the bonding is firm and the operation is convenient. In actual production application, the pipe body unit 2 can be made of carbon fiber materials, equipment weight with the same size is effectively reduced, manual handheld portable operation in a field environment is facilitated, and different materials can be adopted to manufacture the pipe body unit 2 according to actual requirements.
Further, the probe 3 includes a first connection section 301, a rod body section 302 and a needle probe 303, which are sequentially connected, the first connection section 301 can be connected with the metal housing 101, the needle probe 303 is in a conical structure, the whole structure of the probe 3 is slender, stable contact with the surface of the measured object can be realized, and the free movement range of the handheld vector rod can be guaranteed to the greatest extent under the condition that the surface of the measured object has a concave structure.
In order to limit the connection limit position of the measuring pin 3 and the metal shell 101, the measuring pin 3 further comprises a limiting block 304, the limiting block 304 is located between the first connecting section 301 and the rod body section 302, the metal shell 101 is provided with a groove matched with the limiting block 304, the limiting block 304 can extend into the groove, the limiting block 304 is matched with the groove to limit the limit position of the measuring pin 3 and the metal shell 101, and the working stability and reliability of the measuring pin 3 are improved.
Furthermore, in order to effectively protect the probe 3, the probe 3 is connected with a cap 4, a second connecting section 305 is further arranged between the rod body section 302 and the needle-shaped probe 303, the needle-shaped probe 303 extends into the cap 4, the cap 4 is detachably connected with the second connecting section 305, the cap 4 can effectively protect the probe 3 from being damaged, and the service life of the device is prolonged.
In this embodiment, the first connecting section 301 is in threaded connection with the metal shell 101, and the second connecting section 305 is in threaded connection with the cap 4, so that the assembly and disassembly are convenient, the labor intensity of operators is reduced, and the working efficiency is improved. It should be further noted that, the measuring needle 3 further includes a hexagonal prism section, and the hexagonal prism section may be disposed on the rod body section 302, so that when the measuring needle 3 is disassembled and assembled, the hexagonal prism section is convenient for an operator to screw by using a wrench, and the operation convenience is improved.
In other embodiments of the present invention, the tool for assembling a vector bar may be used to assemble the above-mentioned hand-held vector bar special for a large-scale three-dimensional space integral measurement positioning apparatus, where the tool for assembling a vector bar includes a frame body capable of fixing three metal shells 101, and the three metal shells 101 are mounted at left, lower and right step limiting positions of the frame body and clamped to fix a spatial relative positional relationship between the three metal shells 101, and after fixing the metal shells 101, mounting shaft sections at two ends of a main pipe body 201 are respectively mounted in cooperation with the left metal shell 101, and mounting shaft sections at two ends of a branch pipe body 202 are respectively mounted in cooperation with mounting holes of the main pipe body 201 and mounting holes of the metal shell 101. In summary, the invention takes the relative position relation of the metal shell 101 in space as the core and the first step of assembly in the assembly process, thereby skillfully avoiding the problem that the external dimension and shape and position errors of the pipe body unit 2 are uncontrollable, avoiding the influence of the dimension and shape and position errors of composite materials on the whole assembly precision of the metal shell 101 in the assembly process, and further ensuring the reliability of the spatial relative position of each metal shell 101.
The handheld measurement tool of the traditional large-scale three-dimensional space positioning instrument is of an eight-claw (or six-claw) structure, and the basic design concept of the structure configuration is that a design concept similar to that of handheld equipment in the field of photogrammetry is adopted according to a handheld vector rod matching calibration algorithm, so that a multi-measurement-point distributed structure is formed. The traditional hand-held measurement tool design has the defects that the essential difference between the measurement calibration principle and the photogrammetry principle of the large-scale three-dimensional space positioner is not considered, the introduction and amplification of the rotating coordinate system error in the calibration process of the hand-held vector rod of the large-scale three-dimensional space positioner are ignored, the calibration precision is only intended to be improved by blindly adding the calibration points in space, the laser intersection principle of the large-scale three-dimensional space positioner in the space working state is not considered, the precision improvement effect of a small range of multiple target points is tiny, and the situation is actually shown in a large amount of engineering application and test data. Meanwhile, the eight-claw (or six-claw) structure handheld measurement tool is provided with a blind target point, and a plurality of signal receiving modules of the large-scale three-dimensional space positioning instrument are required to be introduced in the use process, so that unnecessary cost of equipment production is increased, and the overall engineering degree is low. In addition, the conventional eight-jaw (or six-jaw) structure has structural defects, the radial structure extends in the space, and the symmetrical and attractive shape of the periphery just increases the unnecessary transverse space occupation rate. A large amount of field use experience shows that the unnecessary space occupation extremely affects the use of the test field with complex shielding environment and narrow use space.
The invention omits the six-to-eight-point redundant design of the traditional claw structure, effectively saves unnecessary cost on the premise of guaranteeing the quality of equipment, has high overall engineering degree of the equipment, effectively reduces the occupancy rate of transverse unnecessary space by the longitudinal symmetrical structure of the equipment, and improves the feasibility of greatly and freely operating the equipment under the complex shielding condition. In the same use environment, such as narrow space manufactured by shielding various physical spaces or a concave space shielded by the volume of the measured object, the invention has higher field adaptability, is more suitable for handheld portable operation of operators, and more meets the space interaction requirements among the operators, the handheld vector rod and the measured object under the condition that the operators are required to make field actions such as ascending, climbing, bending outwards and the like.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (8)
1. Special handheld vector pole of three-dimensional space integral measurement locator of large scale, its characterized in that includes:
the mounting unit comprises three metal shells, wherein connecting lines of the three metal shells are triangular, and a signal receiving module is arranged in the metal shells;
the pipe body unit is connected with the metal shell;
the measuring needle comprises a measuring needle body, wherein the straight line where two metal shells are positioned is coaxial with the axis of the measuring needle body, and one of the two metal shells which are coaxially arranged with the axis of the measuring needle body is connected with the measuring needle body;
the pipe body unit comprises a main pipe body and two branch pipe bodies which are connected, wherein the two metal shells are arranged at two ends of the main pipe body, one ends of the two branch pipe bodies are respectively connected with the main pipe body, one ends of the two branch pipe bodies, which are far away from the main pipe body, are respectively connected with the other metal shells, and the two branch pipe bodies and the main pipe body form an isosceles trapezoid structure.
2. The large-scale three-dimensional space integral measurement locator special-purpose hand-held vector bar according to claim 1, wherein: the metal shell is connected with a gland, the signal receiving module is positioned in a cavity surrounded by the metal shell and the gland, and the gland is detachably connected with the metal shell and corresponds to the metal shell one by one.
3. The large-scale three-dimensional space integral measurement locator special-purpose hand-held vector bar according to claim 2, wherein: the metal shell is also connected with a sealing element, the protruding structure of the signal receiving module can extend out of the sealing element, and the sealing element is detachably connected with the metal shell and corresponds to the metal shell one by one.
4. A special hand-held vector bar for a large-scale three-dimensional space integral measuring locator according to claim 3, wherein: the gland with the sealing member set up in the adjacent both sides face of metal casing, the gland with the sealing member cooperatees and can fix signal receiving module with the relative position of metal casing, the gland with the sealing member with the surface looks parallel and level of metal casing.
5. The large-scale three-dimensional space integral measurement locator special-purpose hand-held vector bar according to claim 1, wherein: the measuring needle comprises a first connecting section, a rod body section and a needle-shaped probe which are sequentially connected, wherein the first connecting section can be connected with the metal shell, and the needle-shaped probe is of a conical structure.
6. The special handheld vector bar for the large-scale three-dimensional space integral measurement positioning instrument according to claim 5, wherein the special handheld vector bar is characterized in that: the measuring needle also comprises a limiting block, the limiting block is positioned between the first connecting section and the rod body section, the metal shell is provided with a groove matched with the limiting block, the limiting block can extend into the groove, and the limiting block is matched with the groove to limit the limiting position of the measuring needle and the metal shell.
7. The large-scale three-dimensional space integral measurement locator special-purpose hand-held vector bar according to claim 6, wherein: the measuring needle is connected with a cover cap, a second connecting section is further arranged between the rod body section and the needle-shaped probe, the needle-shaped probe stretches into the cover cap, and the cover cap is detachably connected with the second connecting section.
8. The large-scale three-dimensional space integral measurement locator special-purpose hand-held vector bar according to claim 7, wherein: the first connecting section is in threaded connection with the metal shell, and the second connecting section is in threaded connection with the cap.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111628914.9A CN114353693B (en) | 2021-12-28 | 2021-12-28 | Special handheld vector lever for large-scale three-dimensional space integral measurement positioning instrument |
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| CN202111628914.9A CN114353693B (en) | 2021-12-28 | 2021-12-28 | Special handheld vector lever for large-scale three-dimensional space integral measurement positioning instrument |
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| CN114353693B true CN114353693B (en) | 2023-11-28 |
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Citations (15)
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