A coaxial gauge

Abstract

The utility model discloses a coaxial degree measuring tool, including disc main part, the surface of disc main part is passed through and is established with mounting hole, the diameter of mounting hole is sequentially decreased from top to bottom, the mounting hole is used to insert the measured axle spare, the rim of mounting hole is passed through and is established with locking hole, the locking hole is provided with locking bolt, the rim of disc main part still is passed through and is established with positioning hole, the positioning hole is provided with fixed bolt. The present application mounting hole rim sets up locking hole and locking bolt, and multiple locking holes are evenly distributed and cooperate multiple locking bolts, and the measured axle spare is applied even and stable locking force from multiple directions, can effectively prevent the measured axle spare from the slight movement of axial or circumferential in the measurement process, ensures that axle spare is always in stable state when measuring, thereby greatly improved the accuracy of coaxial degree measurement, satisfies the demand of high accuracy measurement scene.

Description

Technical Field

[0001] This utility model relates to the field of testing process technology and equipment, specifically a coaxial measuring instrument. Background Technology

[0002] In mechanical manufacturing, precision machining, and many other industrial fields with strict requirements for the coaxiality of components, coaxiality measurement is a crucial inspection process. Coaxiality error directly affects the assembly accuracy, operational stability, and overall performance of components. For example, in engine manufacturing, if the coaxiality of key components such as crankshafts and connecting rods does not meet the standards, it can lead to severe vibrations and increased noise during engine operation, and even cause serious mechanical failures. In the aerospace field, the coaxiality accuracy of various rotating components on aircraft, such as turbine shafts, directly affects the flight safety and reliability of the aircraft.

[0003] Currently, although there are various measuring tools available on the market for measuring coaxiality, these tools often have some shortcomings in practical applications. Some measuring tools are not stable enough when fixing the shaft being measured, and the shaft being measured is prone to slight shaking or displacement during the measurement process, which affects the accuracy of the measurement results. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned technical problems and thus provide a coaxial measuring instrument;

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model provides a coaxial measuring instrument.

[0007] The device includes a disc body with mounting holes extending through its surface. The diameter of the mounting holes decreases sequentially from top to bottom. The mounting holes are used to insert the shaft being measured. Locking holes are extending through the edges of the mounting holes, and locking bolts are installed in the locking holes. Positioning holes are also extending through the edges of the disc body, and fixing bolts are installed in the positioning holes.

[0008] Optionally, there are multiple locking holes, which are evenly distributed along the edge of the positioning hole. Each locking hole is provided with a locking bolt, and the multiple locking bolts work together to more securely lock the measured shaft.

[0009] Optionally, the edge of the disc body is provided with annular reinforcing ribs, which are integrally formed with the disc body to improve the overall strength of the disc body and prevent it from deforming during installation and use.

[0010] Optionally, the positioning holes are provided in multiple locations, and the multiple positioning holes are evenly distributed along the edge of the disk body.

[0011] Optionally, the inner wall of the mounting hole is provided with a wear-resistant coating, which is a tungsten carbide coating with a thickness of 0.05-0.1mm, to reduce the wear on the inner wall of the mounting hole when the measured shaft is inserted and rotated in the mounting hole, and to extend the service life of the measuring tool.

[0012] Optionally, the lower surface of the disk body is provided with a plurality of evenly distributed support protrusions. The support protrusions are cylindrical and have a height of 2-3mm. They are used to keep the disk body stable when placed and to avoid the disk body tilting due to uneven placement surface, which would affect the coaxiality measurement results.

[0013] In summary, this utility model has the following beneficial effects:

[0014] This application provides locking holes and locking bolts along the edge of the mounting hole. Multiple locking holes are evenly distributed and cooperate with multiple locking bolts to apply uniform and stable locking force to the shaft under test from multiple directions. This can effectively prevent the shaft under test from making slight axial or circumferential movements during the measurement process, ensuring that the shaft is always in a stable state during measurement. This greatly improves the accuracy of coaxiality measurement and meets the needs of high-precision measurement scenarios.

[0015] The diameter of the mounting holes that run through the surface of the disc decreases from top to bottom, forming a tapered hole structure. This allows the measuring tool to adapt to shafts of different diameters, eliminating the need for multiple special measuring tools for shafts of different diameters. Operators only need to insert the shaft to be measured into the mounting hole from the larger diameter end to achieve flexible installation, which greatly simplifies the measurement operation process and improves work efficiency. Attached Figure Description

[0016] Figure 1 This is a top view of the structure of this utility model.

[0017] Figure 2 This is a front view sectional view of the main body of the disc of this utility model.

[0018] Explanation of reference numerals in the attached diagram: 1-Disc body, 2-Mounting hole, 3-Locking hole, 4-Positioning hole, 5-Supporting protrusion. Detailed Implementation

[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Example:

[0021] like Figures 1-2 As shown, this utility model provides a coaxial measuring instrument.

[0022] The device includes a disc body 1, on the surface of which a mounting hole 2 is formed. The diameter of the mounting hole 2 decreases from top to bottom. The mounting hole 2 is used to insert the shaft to be measured. A locking hole 3 is formed along the edge of the mounting hole 2. A locking bolt is installed in the locking hole 3. A positioning hole 4 is also formed along the edge of the disc body 1. A fixing bolt is installed in the positioning hole 4.

[0023] The mounting holes 2, which are opened through the surface of the disc body 1, have diameters that decrease sequentially from top to bottom. The tapered hole design has wide applicability and can accommodate shafts of different diameters. Simply insert the shaft from the larger diameter end, and as the shaft goes deeper, different diameter sections can be matched with shafts of different sizes, achieving flexible installation. There is no need to equip the shafts of different diameters with multiple measuring tools, which reduces the cost of use and the complexity of operation.

[0024] The locking hole 3, which runs through the edge of the mounting hole 2, and the locking bolt inside provide a reliable way to fix the shaft being measured. When the shaft being measured is inserted into the mounting hole 2, the locking bolt is tightened so that the end of the bolt can tightly abut against the shaft being measured, preventing the shaft from moving axially or circumferentially during the measurement process. This ensures that the shaft is in a stable state during the measurement, thereby guaranteeing the accuracy of the coaxiality measurement.

[0025] The positioning hole 4 through the edge of the disc body 1 and the fixing bolt inside are used to fix the measuring instrument on the measuring platform. During the measurement process, the stability of the measuring instrument is crucial. The fixing bolt can be used to fix the measuring instrument firmly in the designated position by cooperating with the threaded hole on the measuring platform, so as to prevent the measuring instrument from being displaced due to external factors such as vibration or slight collision, and further ensure the accuracy of coaxiality measurement.

[0026] Optionally, there are multiple locking holes 3, which are evenly distributed along the edge of the positioning hole 4. Each locking hole 3 is provided with a locking bolt, and the multiple locking bolts work together to more securely lock the measured shaft.

[0027] Multiple locking holes 3 are evenly distributed along the edge of the positioning hole 4. Each locking hole 3 is equipped with a locking bolt. Through the combined action of multiple locking bolts, a uniform locking force is applied to the shaft being measured from multiple directions. Compared with a single locking bolt, multiple bolts can lock the shaft being measured more comprehensively and securely, effectively preventing minor shaking or loosening of the shaft during the measurement process. This further improves the stability and accuracy of the measurement, and is especially suitable for high-precision measurement scenarios where coaxiality requirements are extremely high and the measurement process needs to remain stable for a long time.

[0028] Optionally, the edge of the disc body 1 is provided with annular reinforcing ribs, which are integrally formed with the disc body 1 to improve the overall strength of the disc body 1 and prevent it from deforming during installation and use.

[0029] The annular reinforcing ribs on the edge of the disc body 1 are integrally formed with the disc body 1, which significantly improves the overall strength of the disc body 1. During installation and use, the measuring instrument will be subjected to various forces, such as the tightening force of the fixing bolts and the impact force when the measured shaft is inserted. The annular reinforcing ribs can enhance the deformation resistance of the disc body 1, effectively prevent it from deforming due to force, and ensure the structural stability of the measuring instrument. This ensures that the accuracy of coaxiality measurement is not affected by the deformation of the measuring instrument itself, and extends the service life of the measuring instrument under normal use conditions.

[0030] Optionally, the positioning holes 4 are provided in multiple locations, and the multiple positioning holes 4 are evenly distributed along the edge of the disk body 1.

[0031] The positioning holes 4 are set to be multiple and evenly distributed along the edge of the main body 1 of the disc, which provides more options and flexibility for fixing the measuring instrument. In the actual measurement environment, the position of the threaded hole of the measuring platform may vary due to different equipment or different installation positions. Multiple positioning holes 4 allow the measuring instrument to be fixed according to the actual distribution of the threaded hole of the measuring platform, ensuring that the measuring instrument can be accurately and stably installed on the measuring platform, improving the versatility and ease of installation of the measuring instrument, and further ensuring the accuracy of the measurement.

[0032] Optionally, the inner wall of the mounting hole 2 is provided with a wear-resistant coating, which is a tungsten carbide coating with a thickness of 0.05-0.1mm, to reduce the wear on the inner wall of the mounting hole 2 when the measured shaft is inserted and rotated in the mounting hole 2, and to extend the service life of the measuring tool.

[0033] The tungsten carbide wear-resistant coating applied to the inner wall of mounting hole 2 has excellent wear resistance. During frequent insertion and rotation of the shaft being measured, the inner wall of mounting hole 2 will be subjected to friction and wear from the shaft. The tungsten carbide coating can effectively reduce this wear and protect the accuracy and surface quality of the inner wall of mounting hole 2. Its thickness is controlled between 0.05 and 0.1 mm, which ensures that the coating has sufficient wear resistance without affecting the fitting accuracy between mounting hole 2 and the shaft being measured due to excessive coating thickness. By reducing wear, the service life of the measuring instrument is extended, reducing the company's operating costs, while also ensuring the accuracy of coaxiality measurement during long-term use.

[0034] Optionally, the lower surface of the disk body 1 is provided with a plurality of evenly distributed support protrusions 5. The support protrusions 5 are cylindrical and have a height of 2-3mm. They are used to keep the disk body 1 stable when placed and to avoid the disk body 1 tilting due to uneven placement surface, which would affect the coaxiality measurement results.

[0035] Multiple evenly distributed cylindrical support protrusions 5, with a height of 2-3 mm, are provided on the lower surface of the disk body 1. The support protrusions 5 can keep the disk body 1 stable when placed. When there is slight unevenness on the placement surface, the support protrusions 5 can adjust the contact state between the disk body 1 and the placement surface to ensure that the disk body 1 is in a horizontal state and avoid tilting of the disk body 1 due to unevenness. The stable placement of the disk body 1 is the basis for ensuring the accuracy of coaxiality measurement. The support protrusions 5 effectively eliminate the influence of unevenness on the measurement results and improve the reliability and repeatability of the measurement.

[0036] The mounting hole 2 of this application is provided with locking holes 3 and locking bolts along its edge. Multiple locking holes 3 are evenly distributed and cooperate with multiple locking bolts to apply uniform and stable locking force to the shaft under test from multiple directions. This can effectively prevent the shaft under test from making slight axial or circumferential movements during the measurement process, ensuring that the shaft is always in a stable state during measurement. This greatly improves the accuracy of coaxiality measurement and meets the needs of high-precision measurement scenarios.

[0037] The mounting holes 2, which are opened through the surface of the disc body 1, have diameters that decrease sequentially from top to bottom, forming a tapered hole structure. This allows the measuring tool to adapt to shafts of different diameters, eliminating the need for multiple special measuring tools for shafts of different diameters. Operators only need to insert the shaft to be measured into the mounting hole 2 from the larger diameter end to achieve flexible installation, which greatly simplifies the measurement operation process and improves work efficiency.

[0038] Multiple evenly distributed positioning holes 4 are provided along the edge of the main body 1 of the disc. When fixing the measuring tool, the appropriate positioning hole 4 can be selected for fixing according to the actual distribution of the threaded holes of the measuring platform. This increases the flexibility and versatility of fixing the measuring tool, enabling the measuring tool to adapt to different measuring environments and equipment, and reducing the waste of time and effort caused by inconvenient installation.

[0039] The tungsten carbide wear-resistant coating applied to the inner wall of mounting hole 2 provides excellent wear resistance. During frequent insertion and rotation of the measured shaft, the coating effectively reduces friction and wear between the inner wall of mounting hole 2 and the shaft, protecting the accuracy and surface quality of the inner wall. The thickness ensures wear resistance without affecting the fit accuracy between mounting hole 2 and the measured shaft, thus significantly extending the service life of the measuring tool and reducing operating costs for the company.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A coaxial measuring instrument, characterized in that, The device includes a disc body with mounting holes extending through its surface. The diameter of the mounting holes decreases sequentially from top to bottom. The mounting holes are used to insert the shaft being measured. Locking holes are extending through the edges of the mounting holes, and locking bolts are installed in the locking holes. Positioning holes are also extending through the edges of the disc body, and fixing bolts are installed in the positioning holes.

2. The coaxial measuring instrument according to claim 1, characterized in that, The locking holes are multiple and evenly distributed along the edge of the positioning hole. Each locking hole is provided with a locking bolt. The multiple locking bolts work together to more securely lock the measured shaft.

3. A coaxial measuring instrument according to claim 1, characterized in that, The edge of the disc body is provided with annular reinforcing ribs, which are integrally formed with the disc body to improve the overall strength of the disc body and prevent deformation during installation and use.

4. A coaxial measuring instrument according to claim 1, characterized in that, The positioning holes are configured as a plurality of holes, which are evenly distributed along the edge of the disk body.

5. A coaxial measuring instrument according to claim 1, characterized in that, The inner wall of the mounting hole is provided with a wear-resistant coating, which is a tungsten carbide coating with a thickness of 0.05-0.1mm. This coating is used to reduce the wear on the inner wall of the mounting hole when the measured shaft is inserted and rotated in the mounting hole, thereby extending the service life of the measuring tool.

6. A coaxial measuring instrument according to claim 1, characterized in that, The lower surface of the disk body is provided with multiple evenly distributed support protrusions. The support protrusions are cylindrical and have a height of 2-3mm. They are used to keep the disk body stable when placed and to avoid the disk body tilting due to uneven placement surface, which would affect the coaxiality measurement results.

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