CN216283552U - A fixed frock of switching for autocollimator - Google Patents
A fixed frock of switching for autocollimator Download PDFInfo
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- CN216283552U CN216283552U CN202121996843.3U CN202121996843U CN216283552U CN 216283552 U CN216283552 U CN 216283552U CN 202121996843 U CN202121996843 U CN 202121996843U CN 216283552 U CN216283552 U CN 216283552U
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- autocollimator
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Abstract
The utility model discloses a switching fixing tool for an autocollimator, which comprises an installation cylinder (1) and an installation column (2), wherein the lower end of the installation cylinder (1) is provided with a first inner threaded hole (1.1), the upper end of the installation cylinder (1) is provided with a flange (1.2), the flange (1.2) is provided with a through hole (1.3), and the through hole (1.3) is used for installing the autocollimator; the upper end of the mounting column (2) is provided with an external thread (2.1), and the lower end of the mounting column (2) is provided with a second internal threaded hole (2.2) for connecting a theodolite mounting bracket; the upper end of the mounting column (2) is in threaded connection with the lower end of the mounting cylinder (1). The utility model can fix the autocollimator to the theodolite mounting bracket with high stability, thereby ensuring the testing precision, saving labor and production cost and reducing the quality hidden trouble.
Description
Technical Field
The utility model relates to a switching fixing tool for an autocollimator, in particular to a fixing device for fixing the autocollimator when a strapdown inertial navigation system (inertial navigation for short) product is subjected to self-alignment test.
Background
In the inertial navigation batch production process, the inertial navigation product needs to carry out multi-azimuth self-alignment error precision test and check the inertial navigation alignment precision. After the theodolite aims at true north of the prism, the autocollimator is used for measuring the relative deviation of the change of the orientation of the prism after the product is aligned to calculate the alignment precision of the inertial navigation product. There are some practical problems in the testing process:
1) the matched tripod has low stability and is easy to be interfered by external environment. Interference conditions such as personnel walking, product turnover and the like exist in the test process, the test time is long, and the risk of deformation and displacement of the installation position caused by external interference exists, so that the test precision is influenced;
2) the theodolite mounting bracket with high use stability is not matched with the autocollimator mounting port and cannot be mounted;
3) the triangular bracket is used, and a screw needs to be screwed from the lower part of the autocollimator to fix the autocollimator, so that the autocollimator is extremely inconvenient to mount and has the risk of falling off in the mounting process; after the test is accomplished, tripod, autocollimator are dismantled repeatedly, thereby tripod locking becomes flexible and produces the displacement when leading to using for a long time, dismantle autocollimator and influence the depth of parallelism and the measurement accuracy of optical axis to influence the actual precision of being used to lead the product.
SUMMERY OF THE UTILITY MODEL
The utility model provides a switching fixing tool for an autocollimator, which aims to solve the problems existing in the use of the existing autocollimator and is beneficial to an operator to mount the autocollimator on a theodolite mounting bracket.
A switching fixing tool for an autocollimator is characterized by comprising an installation cylinder and an installation column, wherein a first inner threaded hole is formed in the lower end of the installation cylinder, a flange is formed in the upper end of the installation cylinder, a through hole is formed in the flange, and the through hole is used for installing the autocollimator;
the upper end of the mounting column is provided with an external thread, and the lower end of the mounting column is provided with a second internal thread hole for connecting a theodolite mounting bracket;
the upper end of the mounting column is in threaded connection with the lower end of the mounting cylinder.
By adopting the technical scheme, the mounting cylinder and the mounting column are connected in a threaded detachable connection mode, the lower end of the mounting column can be fixedly connected with the theodolite mounting bracket in a threaded manner, and the flange at the upper end of the mounting cylinder is used for fixing the autocollimator; the operating personnel can be through the fixed frock of switching of this application with the fast accurate theodolite installing support of installing on. Meanwhile, when autocollimators of different types and sizes need to be installed and fixed, only installation cylinders of different specifications need to be replaced.
Further, the outer diameter of the lower end of the mounting post is larger than the outer diameter of the upper end of the mounting post. Be provided with like this and do benefit to the stability of being connected of guaranteeing erection column and theodolite installing support.
Further, the mounting cylinder and the mounting column are machined and formed by an aluminum bar machine. The aluminum bar has small density, low price and convenient mechanical processing, can easily meet the assembly requirements of dimensional tolerance and form and position tolerance, has a surface oxide layer without volatile metal, has good ductility and corrosion resistance, and is beneficial to improving the precision in the long-term use process.
Further, the upper end of the mounting column is provided with a hollow structure. Hollow structure is favorable to reducing the quality of erection column, and the operating personnel of being convenient for uses.
By the transfer fixing tool, the autocollimator can be fixed to a theodolite mounting bracket with high stability, and the mounting position of the autocollimator is ensured not to change in the test process; if autocollimators of other types are used, the installation cylinder can be suitable for the installation and fixation of autocollimators of other types by replacing the corresponding installation cylinder; therefore, the testing precision is ensured, the labor and the production cost are saved, and the hidden quality danger is reduced.
Drawings
Fig. 1 is a schematic perspective view of a transfer fixing tool according to the present invention;
FIG. 2 is a schematic cross-sectional view of the mounting cartridge;
FIG. 3 is a schematic view of a mounting post;
fig. 4 is a cross-sectional schematic view of a mounting post.
In the figure: the mounting structure comprises a mounting cylinder 1, a first inner threaded hole 1.1, a flange 1.2, a through hole 1.3, a mounting column 2, an outer thread 2.1 and a second inner threaded hole 2.2.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
Referring to fig. 1-3, the tool for fixing the auto-collimator includes an installation cylinder 1 and an installation column 2, the lower end of the installation cylinder 1 has a first inner screw hole 1.1, the upper end of the installation cylinder 1 has a flange 1.2, the flange 1.2 is provided with a through hole 1.3, and the through hole 1.3 is used for installing the auto-collimator (not shown);
the upper end of the mounting column 2 is provided with an external thread 2.1, and the lower end of the mounting column 2 is provided with a second internal threaded hole 2.2 for connecting a theodolite mounting bracket (not shown); the upper end of the mounting column 2 is in threaded connection with the lower end of the mounting cylinder 1; the external diameter of the lower end of the mounting column 2 is larger than the external diameter of the upper end of the mounting column 2, and the upper end of the mounting column 2 is of a hollow structure.
Through the combination of the mounting cylinder 1 and the mounting column 2, the mounting column 2 is mounted on the theodolite mounting bracket, and then the autocollimator is fixed on the mounting cylinder 1. The problem of because of human factor influence autocollimator mounted position and installation inconvenience is solved, the measuring accuracy has been guaranteed simultaneously. The tool can meet the installation requirements of various autocollimators and theodolites and has wide application prospect.
The utility model has the advantages that: the fixed frock of switching has good interchangeability, applicable in the installation requirement of various autocollimators and theodolite. After the fixing tool is used, the operation is convenient and fast, the time for an operator to install the autocollimator on the theodolite mounting bracket is greatly shortened, and the labor cost is saved. Meanwhile, the coaxiality positioning tolerance of the tool and the autocollimator can be guaranteed, the installation error is reduced, and the requirement for testing the precision of the multi-azimuth autocollimation error is met. The adapter fixing tool is made of aluminum rods, is low in density, low in price, convenient to machine, easy to meet the assembly requirements of dimensional tolerance and form and position tolerance, free of volatile metal on a surface oxidation layer, and good in ductility and corrosion resistance. Considering that the tool needs to meet design requirements of economy, practicability, attractiveness and the like, the designed tool is a revolving body component, and is convenient for lathe machining of a revolving surface and a revolving end face.
The embodiments of the present invention are described above with reference to the drawings, and the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention is not limited to the above-described embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (4)
1. The switching fixing tool for the autocollimator is characterized by comprising an installation cylinder (1) and an installation column (2), wherein a first inner threaded hole (1.1) is formed in the lower end of the installation cylinder (1), a flange (1.2) is formed in the upper end of the installation cylinder (1), a through hole (1.3) is formed in the flange (1.2), and the through hole (1.3) is used for installing the autocollimator;
the upper end of the mounting column (2) is provided with an external thread (2.1), and the lower end of the mounting column (2) is provided with a second internal threaded hole (2.2) for connecting a theodolite mounting bracket;
the upper end of the mounting column (2) is in threaded connection with the lower end of the mounting cylinder (1).
2. The transit fixing tool for the autocollimator of claim 1, which is characterized in that the outer diameter of the lower end of the mounting column (2) is greater than the outer diameter of the upper end of the mounting column (2).
3. The fixture according to claim 1, wherein the mounting cylinder (1) and the mounting post (2) are machined and formed by an aluminum bar machine.
4. The transit fixing tool for the autocollimator of claim 1, which is characterized in that the upper end of the mounting column (2) is hollow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121996843.3U CN216283552U (en) | 2021-08-23 | 2021-08-23 | A fixed frock of switching for autocollimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121996843.3U CN216283552U (en) | 2021-08-23 | 2021-08-23 | A fixed frock of switching for autocollimator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216283552U true CN216283552U (en) | 2022-04-12 |
Family
ID=81061552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121996843.3U Active CN216283552U (en) | 2021-08-23 | 2021-08-23 | A fixed frock of switching for autocollimator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216283552U (en) |
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2021
- 2021-08-23 CN CN202121996843.3U patent/CN216283552U/en active Active
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