Spatial multi-coaxiality integrated detection device for incomplete narrow spherical part
By designing an integrated multi-coaxiality detection device for non-complete narrow spherical parts and using a platform base and column to support the micrometer, the difficult problem of measuring the coaxiality of the inner and outer cylindrical surfaces and the inner spherical surface of the helicopter ball seat parts was solved, and fast and accurate multi-coaxiality measurement was achieved with good stability and repeatability.
Patent Information
- Application Number
- CN202422624129.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Existing technology cannot accurately measure the coaxiality between the inner and outer cylindrical surfaces and the inner spherical surface of helicopter ball seat parts, especially for incomplete narrow spherical parts. Conventional calipers and three-coordinate measurement have large errors and cannot meet high-precision requirements.
An integrated detection device for spatial multi-coaxiality of non-complete narrow spherical parts is designed, which includes a platform base, an inner cylindrical surface measuring column, an inner spherical surface measuring column, an outer cylindrical surface measuring column and a micrometer. The micrometer is supported by the limit of the platform base and the fixed position of the column to achieve multi-coaxiality measurement of the part.
The device realizes the rapid and accurate measurement of the coaxiality of the inner and outer cylindrical surfaces and the inner spherical surface of non-complete narrow spherical parts. The device has a simple structure, low cost and good stability and reusability.
Smart Images
Figure CN223389119U_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to detection technology and relates to a spatial multi-coaxiality integrated detection device for non-complete narrow spherical parts. Background Art
[0002] The ball socket of a helicopter is a key functional component that enables the automatic tilt mechanism to swing. Its structural features include an outer cylindrical surface, an inner cylindrical surface, and an inner spherical surface. High coaxiality requirements are imposed on the inner and outer cylindrical surfaces and the spherical surface. Since the spherical surface is not a complete sphere and is less than 20 mm wide, conventional calipers and three-dimensional coordinate measurement have large errors and cannot accurately measure the true size of the part. Therefore, a multi-coaxiality detection device suitable for ball socket parts was invented to achieve integrated detection of the coaxiality of the inner and outer cylindrical surfaces and the inner spherical surface. Summary of the Invention
[0003] The present application provides an integrated detection device for spatial multi-coaxiality of non-complete narrow spherical parts, which can solve the problem of being unable to accurately measure the true size of the parts.
[0004] Technical solution: A device for integrated detection of spatial multi-coaxiality of non-complete narrow spherical parts, comprising a platform base 1, an inner cylindrical surface measuring column 2, an inner spherical surface measuring column 3, an outer cylindrical surface measuring column 4, and a micrometer 5, wherein:
[0005] The bottom of the circular inner cavity of the platform base 1 has two threaded holes, and there are two 180° arc-shaped bosses on the top. There is a threaded hole on the upper surface of the platform, and two small square bosses on both sides of the arc-shaped boss; the inner cylindrical surface measuring column 2 is a column, and there is a circular hole structure on one side of the middle position of the column; the inner spherical surface measuring column 3 is a column, and there is a circular hole structure on one side of the middle position of the column; the outer cylindrical surface measuring column 4 is a column, and there is a circular hole structure on one side of the middle lower position of the column, and the hole is used to install a micrometer 51; the micrometer 5 includes the first micrometer 51 , the second micrometer 52 and the third micrometer 53, the first micrometer 51 is used to measure the outer cylindrical surface of the incomplete narrow spherical part 6, the second micrometer 52 is used to measure the inner spherical surface of the incomplete narrow spherical part 6, and the third micrometer 53 is used to measure the inner cylindrical surface of the incomplete narrow spherical part 6; the incomplete narrow spherical part 6 is placed on the platform base 1, and is limited by the arc boss and the square boss. The two arc bosses of the platform base 1 match the inner cylindrical surface of the incomplete narrow spherical part 6, and the two square bosses of the platform base 1 match the outer cylindrical surface of the incomplete narrow spherical part 6.
[0006] Specifically, the platform base 1 is a square structure made of alloy steel, with an overall size of not less than 300mm×300mm, and a circular inner cavity with a size of 80mm to 85mm in the middle, and a cavity depth of not less than 10mm.
[0007] Specifically, the maximum measurement of the micrometer 5 is not less than 1 mm.
[0008] Specifically, the length of the inner spherical surface measuring column 3 is greater than that of the inner cylindrical surface measuring column 2 , and the length of the inner spherical surface measuring column 3 is greater than that of the outer cylindrical surface measuring column 4 .
[0009] Specifically, the length of the inner cylindrical surface measuring column 2 is shorter than that of the outer cylindrical surface measuring column 4 .
[0010] Specifically, the heights of the dial gauge mounting holes of the first dial gauge 51 , the second dial gauge 52 , and the third dial gauge 53 are all smaller than the height of the incomplete narrow spherical part 6 .
[0011] Specifically, the inner cylindrical surface measuring column 2 is made of alloy steel, and the column length is not less than 40 mm.
[0012] Specifically, the inner spherical surface measuring column 3 is made of alloy steel, and the length of the column is not less than 60 mm.
[0013] Specifically, the outer cylindrical surface measuring column 4 is made of alloy steel, and the length of the column is not less than 50 mm.
[0014] In summary, the present application provides an integrated detection device for multiple spatial coaxialities of incomplete narrow spherical parts, which fully utilizes the characteristics of helicopter ball socket parts. To address the difficulty in detecting incomplete narrow spherical surfaces of such parts, the structural design of the platform base 1 is used to limit the ball socket part. The fixed positions of the inner cylindrical surface measuring column 2, the inner spherical surface measuring column 3, and the outer cylindrical surface measuring column 4 support the micrometer 5. After adjusting the micrometer, the coaxiality of the inner cylindrical axis, the inner cylindrical axis, and the inner spherical center of the part can be quickly measured by rotating the incomplete narrow spherical part 6. The present device and its use method can be applied to the multi-coaxiality measurement of incomplete spherical parts of different sizes. The device has many advantages such as ease of use, low cost, and reusability. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1a A top view of a spatial multi-coaxiality integrated detection device for non-holonomic narrow spherical parts provided by this application;
[0016] Figure 1b Three-view diagram of another non-holonomic narrow spherical part spatial multi-coaxiality integrated detection device provided by this application;
[0017] Figure 2 This is a schematic diagram of the structure of the platform base of a non-holonomic narrow spherical part spatial multi-coaxiality integrated detection device provided by this application;
[0018] Figure 3 A schematic diagram of the structure of the inner cylindrical surface measurement column provided in this application;
[0019] Figure 4 A schematic diagram of the structure of the inner spherical surface measurement column provided in this application;
[0020] Figure 5 A schematic diagram of the structure of the outer cylindrical surface measurement column provided in this application;
[0021] Figure 6 A schematic diagram of the structure of the dial indicator provided for this application;
[0022] Figure 7a A top view of the integrated detection device for multi-coaxiality of non-holonomic narrow spherical parts provided by this application;
[0023] Figure 7b Three views of the integrated detection device for multi-coaxiality of non-holonomic narrow spherical parts provided in this application;
[0024] Among them: 1- platform base, 2- inner cylindrical surface measuring column, 3- inner spherical surface measuring column, 4- outer cylindrical surface measuring column, 5- micrometer, 6- incomplete narrow spherical part, 51- first micrometer, 52- second micrometer, 53- third micrometer. DETAILED DESCRIPTION
[0025] The purpose of the present invention is to invent a device for integrated detection of multiple coaxialities of non-complete narrow spherical parts, so as to realize integrated detection of the coaxiality of the inner and outer cylindrical surfaces and the inner spherical surface of the helicopter ball seat parts.
[0026] Example 1
[0027] like Figure 1a and Figure 1b As shown, the present application provides a multi-coaxiality integrated detection device for non-complete narrow spherical parts, including a platform base 1, an inner cylindrical surface measuring column 2, an inner spherical surface measuring column 3, an outer cylindrical surface measuring column 4, and a micrometer 5, wherein:
[0028] The bottom of the circular inner cavity of the platform base 1 has two threaded holes, and there are two 180° arc-shaped bosses on the top. There is a threaded hole on the upper surface of the platform, and two small square bosses on both sides of the arc-shaped boss; the inner cylindrical surface measuring column 2 is a column, and there is a circular hole structure on one side of the middle position of the column; the inner spherical surface measuring column 3 is a column, and there is a circular hole structure on one side of the middle position of the column; the outer cylindrical surface measuring column 4 is a column, and there is a circular hole structure on one side of the middle lower position of the column, and the hole is used to install a micrometer 51; the micrometer 5 includes the first micrometer 51 , the second micrometer 52 and the third micrometer 53, the first micrometer 51 is used to measure the outer cylindrical surface of the incomplete narrow spherical part 6, the second micrometer 52 is used to measure the inner spherical surface of the incomplete narrow spherical part 6, and the third micrometer 53 is used to measure the inner cylindrical surface of the incomplete narrow spherical part 6; the incomplete narrow spherical part 6 is placed on the platform base 1, and is limited by the arc boss and the square boss. The two arc bosses of the platform base 1 match the inner cylindrical surface of the incomplete narrow spherical part 6, and the two square bosses of the platform base 1 match the outer cylindrical surface of the incomplete narrow spherical part 6.
[0029] Specifically, the platform base 1 is a square structure made of alloy steel, with an overall size of not less than 300mm×300mm, and a circular inner cavity with a size of 80mm to 85mm in the middle, and a cavity depth of not less than 10mm.
[0030] Specifically, the inner cylindrical surface measuring column 2 is made of alloy steel, and the column length is not less than 40 mm.
[0031] Specifically, the inner spherical surface measuring column 3 is made of alloy steel, and the length of the column is not less than 60 mm.
[0032] Specifically, the outer cylindrical surface measuring column 4 is made of alloy steel, and the length of the column is not less than 50 mm.
[0033] Specifically, the maximum measurement of the micrometer 5 is not less than 1 mm.
[0034] Specifically, the length of the inner spherical surface measuring column 3 is greater than that of the inner cylindrical surface measuring column 2 , and the length of the inner spherical surface measuring column 3 is greater than that of the outer cylindrical surface measuring column 4 .
[0035] Specifically, the length of the inner cylindrical surface measuring column 2 is shorter than that of the outer cylindrical surface measuring column 4 .
[0036] Specifically, the heights of the dial gauge mounting holes of the first dial gauge 51 , the second dial gauge 52 , and the third dial gauge 53 are all smaller than the height of the incomplete narrow spherical part 6 .
[0037] It should be noted that the requirements and functions of various parts of the tool are as follows: the platform base 1 should have good rigidity, with a recess in the middle to facilitate measurement of the inner cylindrical surface; the plane of the part installation area needs to be ground to ensure that the flatness is within 0.01mm; the edge of the recess has an arc protrusion, and the tolerance of the circular diameter of the arc protrusion is guaranteed to be within 0.02mm; there is a square protrusion at a 90-degree angle to the arc protrusion, the tolerance of the inscribed circle diameter of the square protrusion is guaranteed to be within 0.02mm, and the coaxiality with the center of the arc protrusion is guaranteed to be within 0.01mm; the inner cylindrical surface measuring column 2, the inner spherical surface measuring column 3, and the outer cylindrical surface measuring column 4 can quickly clamp the micrometer 5 and are easy to install and disassemble.
[0038] In summary, the advantages of the present application of providing a device for detecting spatial multi-coaxiality of non-holonomic narrow spherical parts include:
[0039] First: This tool can be used for the integrated detection of multiple spatial coaxialities of parts with multiple typical features such as helicopter ball seats, which have inner and outer cylindrical surfaces and inner spherical surfaces.
[0040] Second: The tool has a simple structure, good stability and reliability, and can quickly and effectively realize the integrated detection of multi-coaxiality of non-complete narrow spherical parts.
[0041] Third: This method and the device are scalable.
[0042] Example 2
[0043] like Figure 7a and Figure 7b As shown, the present application provides a method for integrated detection of multiple spatial coaxiality of non-holonomic narrow spherical parts. The method is applied to the integrated detection device for multiple spatial coaxiality of non-holonomic narrow spherical parts provided in the above embodiment. The method includes:
[0044] Step 1: Place the platform base 1 on a horizontal workbench and ensure it is level. Install and secure the inner cylindrical surface measuring column 2, inner spherical surface measuring column 3, and outer cylindrical surface measuring column 4. Install three dial indicators 5 on the inner cylindrical surface measuring column 2, inner spherical surface measuring column 3, and outer cylindrical surface measuring column 4 respectively. Do not tighten them.
[0045] Step 2: Place the incomplete narrow spherical part 6 on the platform base 1, and limit it with the arc protrusion and square protrusion of the platform base 1 respectively. Adjust the three dial indicators 5 so that they have initial pressure gauges, and align all three dial indicators 5 to 0;
[0046] Step 3: Rotate the incomplete narrow spherical part 6, observe the dimensional changes of the three dial gauges 5, record the position and value of the maximum pressure gauge, and add the two values to get the coaxiality corresponding to the measured position;
[0047] Specifically, step 3 includes:
[0048] Step 31: Using the first micrometer 51, measure and obtain a first dimension deviation P1, where the first dimension P1 is a deviation value between the maximum and minimum diameters of the outer cylindrical surface of the incomplete narrow spherical part 6;
[0049] Step 31: Use the second micrometer 52 to measure and obtain a second dimensional deviation P2, where the second dimension P2 is the deviation value between the maximum and minimum points in the diameter direction of the inner cylindrical surface of the incomplete narrow spherical part 6;
[0050] Step 31: Using the third micrometer 53, measure and obtain a third dimension deviation P3, wherein the third dimension P3 is a deviation value between the maximum and minimum diameters of the inner spherical surface of the incomplete narrow spherical component 6;
[0051] Step 34: Use P1+P2÷2 to measure the coaxiality of the outer cylindrical surface and the inner cylindrical surface of the incomplete narrow spherical part 6; use P1+P3÷2 to measure the coaxiality of the outer cylindrical surface and the inner spherical surface of the incomplete narrow spherical part 6; use P2+P3÷2 to measure the coaxiality of the inner cylindrical surface and the inner spherical surface of the incomplete narrow spherical part 6.
[0052] Step 4: After the measurement is completed, loosen and remove the three dial indicators 5, and then take out the incomplete narrow spherical part 6.
[0053] In summary, the present application provides an integrated detection device for multiple spatial coaxialities of incomplete narrow spherical parts, which fully utilizes the characteristics of helicopter ball socket parts. To address the difficulty in detecting incomplete narrow spherical surfaces of such parts, the structural design of the platform base 1 is used to limit the ball socket part. The fixed positions of the inner cylindrical surface measuring column 2, the inner spherical surface measuring column 3, and the outer cylindrical surface measuring column 4 support the micrometer 5. After adjusting the micrometer, the coaxiality of the inner cylindrical axis, the inner cylindrical axis, and the inner spherical center of the part can be quickly measured by rotating the incomplete narrow spherical part 6. The present device and its use method can be applied to the multi-coaxiality measurement of incomplete spherical parts of different sizes. The device has many advantages such as ease of use, low cost, and reusability.
Claims
1. A device for integrated detection of spatial multi-coaxiality of non-holonomic narrow spherical parts, characterized in that: The device comprises a platform base (1), an inner cylindrical surface measuring column (2), an inner spherical surface measuring column (3), an outer cylindrical surface measuring column (4), and a micrometer (5), wherein: The bottom of the circular inner cavity of the platform base (1) has two threaded holes, and there are two 180° arc-shaped bosses on the top. There is a threaded hole on the upper surface of the platform, and two small square bosses on both sides of the arc-shaped boss; the inner cylindrical surface measuring column (2) is a column, and a circular hole structure is provided on one side of the middle position of the column; the inner spherical surface measuring column (3) is a column, and a circular hole structure is provided on one side of the middle position of the column; the outer cylindrical surface measuring column (4) is a column, and a circular hole structure is provided on one side of the middle position of the column, and the hole is used to install a micrometer (5); the micrometer (5) includes a first micrometer (51), a second micrometer (52), and a second micrometer (53). 2) and the third micrometer (53), the first micrometer (51) is used to measure the outer cylindrical surface of the incomplete narrow spherical part (6), the second micrometer (52) is used to measure the inner spherical surface of the incomplete narrow spherical part (6), and the third micrometer (53) is used to measure the inner cylindrical surface of the incomplete narrow spherical part (6); the incomplete narrow spherical part (6) is placed on the platform base (1), and is limited by the arc boss and the square boss. The two arc bosses of the platform base (1) match the inner cylindrical surface of the incomplete narrow spherical part (6), and the two square bosses of the platform base (1) match the outer cylindrical surface of the incomplete narrow spherical part (6).
2. The device according to claim 1, characterized in that The platform base (1) is a square structure made of alloy steel with an overall size of not less than 300mm×300mm. It has a circular inner cavity with a size of 80mm to 85mm in the middle and a cavity depth of not less than 10mm.
3. The device according to claim 1, characterized in that The maximum measurement of the micrometer (5) shall not be less than 1 mm.
4. The device according to claim 1, characterized in that The length of the inner spherical surface measuring column (3) is greater than that of the inner cylindrical surface measuring column (2), and the length of the inner spherical surface measuring column (3) is greater than that of the outer cylindrical surface measuring column (4).
5. The device according to claim 1, characterized in that The length of the inner cylindrical surface measuring column (2) is shorter than that of the outer cylindrical surface measuring column (4).
6. The device according to claim 1, characterized in that The heights of the dial gauge mounting holes of the first dial gauge (51), the second dial gauge (52), and the third dial gauge (53) are all smaller than the height of the incomplete narrow spherical part (6).
7. The device according to claim 1, characterized in that The inner cylindrical surface measuring column (2) is made of alloy steel and has a length of not less than 40 mm.
8. The device according to claim 1, characterized in that The inner spherical surface measuring column (3) is made of alloy steel and has a length of not less than 60 mm.
9. The device according to claim 1, characterized in that The outer cylindrical surface measuring column (4) is made of alloy steel and has a length of not less than 50 mm.