Swing error measuring device for thin-wall angular contact ball bearing

Abstract

A thin-wall angular contact ball bearing runout measuring device comprises a height measuring instrument, a measuring meter installed on a rocker arm of the height measuring instrument and a measured bearing and is further provided with an end swinging tool, a limiting groove is formed in the lower end face of the end swinging tool, the measured bearing is placed on a workbench of the height measuring instrument, and the height measuring instrument is connected with the measuring meter. The upper end of the measuring meter is sleeved in the limiting groove, the upper end face of the measured bearing is attached to the bottom face of the end swing tool, the upper end face of the end swing tool is provided with a protruding annular measuring working face, and a measuring head of the measuring meter is tightly pressed on the measuring working face. According to the scheme, by optimizing the structure of the end swing tool, the end swing of the bearing can be effectively measured, particularly, the measurement precision of the end swing of the thin-wall angular contact ball bearing is higher, and real and reliable data are provided for setting and adjusting technological parameters in the production and machining process.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing production and processing, and particularly relates to a runout measuring device for a thin-walled angular contact ball bearing. Background Art

[0002] It is known that thin-walled angular contact ball bearings are often used in the installation of high-speed and high-rotation-precision workstations, and are mostly used in precision equipment or industries with special needs. During specific use, in order to ensure the accuracy of the terminal equipment, the end runout accuracy of the thin-walled angular contact ball bearing is particularly important. For this type of bearing with a relatively narrow end face, it is difficult to accurately measure according to the current runout measurement method.

[0003] Therefore, how to provide a runout measuring device and method for a thin-walled angular contact ball bearing has become a long-term technical requirement of those skilled in the art to meet the need for measuring the end runout of a thin-walled angular contact ball bearing, etc. Summary of the Utility Model

[0004] To solve the above technical problems, the purpose of the utility model is to provide a runout measuring device for a thin-walled angular contact ball bearing. By using this solution, the end runout of the bearing can be effectively measured, especially with higher measurement accuracy for the end runout of the thin-walled angular contact ball bearing, providing true and reliable data for the setting and adjustment of process parameters during the production and processing process.

[0005] The technical solution adopted by the utility model is: a runout measuring device for a thin-walled angular contact ball bearing, which includes a height gauge, a measuring gauge installed on the swing arm of the height gauge, and a bearing to be measured. A end runout tooling is also provided. A limiting groove is provided on the lower end face of the end runout tooling. The bearing to be measured is placed on the workbench of the height gauge, and its upper end is sleeved in the limiting groove so that the upper end face of the bearing to be measured is in contact with the bottom surface of the end runout tooling. A protruding annular measuring working surface is provided on the upper end face of the end runout tooling, and the measuring head of the measuring gauge is pressed against the measuring working surface.

[0006] As a preferred solution, the end runout tooling includes a cylindrical tooling load-bearing main body. A protruding annular measuring working surface is provided on the upper end face of the tooling load-bearing main body, and a groove matching the end shape of the bearing to be measured is provided on its lower end face.

[0007] As a preferred solution, a limiting ring is further provided at the bottom of the tooling load-bearing main body. The limiting ring is fixedly installed on the lower end face of the tooling load-bearing main body through a locking screw. The upper end of the bearing to be measured is sleeved in the inner hole of the limiting ring and ensures that the upper end face of the bearing to be measured is in contact with the bottom surface of the tooling load-bearing main body, so that the weight of the tooling load-bearing main body is directly loaded on the bearing to be measured.

[0008] As a preferred solution, for the tooling load-bearing main body, the flatness of its measuring working surface is ≤0.001 mm.

[0009] As a preferred solution, the limiting ring is a toroid, and three mounting holes are uniformly arranged along the circumference of the toroid.

[0010] As a preferred solution, the height measuring instrument is a G906 height measuring instrument.

[0011] As a preferred solution, the measuring gauge is a sector dial indicator.

[0012] The beneficial effects of the present utility model are as follows:

[0013] Based on the defects existing in the prior art, this solution provides a runout measuring device for thin-walled angular contact ball bearings. By optimizing the structural design, a runout tooling is set on the bearing to be measured. The upper end face of the runout tooling is provided with a protruding annular measuring working surface, which has certain flatness requirements. The upper end of the bearing to be measured is sleeved in the limiting groove on the lower end face of the runout tooling and the upper end face of the bearing to be measured is attached to the bottom surface of the runout tooling, so that the weight of the runout tooling is directly loaded on the bearing to be measured. Then, after the bearing to be measured is combined with the runout tooling, it is placed on the height measuring instrument to measure the runout. The runout tooling provides appropriate pressure to ensure the outer ring, rolling elements and inner ring of the bearing to be measured are in contact, and the runout of the bearing end face can be accurately measured, especially for the measurement accuracy of the runout of thin-walled angular contact ball bearings is higher, providing true and reliable data for the setting and adjustment of process parameters during the production and processing process, etc. This solution has the advantages of simple operation, convenient use, high detection accuracy, etc., and is suitable for wide promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a matching schematic diagram of the runout tooling and the bearing to be measured;

[0017] Figure 3 is a structural schematic diagram of the tooling load-bearing body;

[0018] Figure 4 is a structural sectional view of the tooling load-bearing body;

[0019] Figure 5 is a structural schematic diagram of the limiting ring.

[0020] Reference numerals: 1, height gauge; 2, measuring gauge; 3, end swing tooling; 31, tooling load-bearing body, 311, measuring working surface, 312, groove, 313, screw hole, 32, limit ring, 321, mounting hole, 4, bearing to be measured. Detailed implementation manners

[0021] Next, the present utility model will be specifically described by way of exemplary implementation manners. However, it should be understood that, without further narration, the elements, structures and features in one implementation manner can also be beneficially combined into other implementation manners.

[0022] It should be noted that: unless otherwise defined, the technical terms or scientific terms used herein should have the ordinary meanings understood by those with ordinary skills in the field to which the present utility model belongs; the words such as "a", "one" or "the" used in the specification and claims of the patent application of the present utility model do not express a limitation in quantity, but mean that there is at least one; the words such as "including" or "comprising" indicate that the elements or objects appearing before "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, but do not exclude other elements or objects with the same functions;

[0023] Embodiment 1

[0024] In order to more clearly describe the specific structural composition and measurement process of the runout measurement device for thin-walled angular contact ball bearings, this embodiment will be described in detail with reference to the accompanying drawings:

[0025] As Figure 1 shown, a runout measurement device for thin-walled angular contact ball bearings is composed of a height gauge 1, a measuring gauge 2, an end swing tooling 3 and a bearing to be measured 4. The bearing to be measured 4 is placed on the workbench of the height gauge 1. A limit groove is provided on the lower end surface of the end swing tooling 3. The upper end of the bearing to be measured 4 is sleeved in the limit groove and the upper end surface of the bearing to be measured 4 is attached to the bottom surface of the end swing tooling 3. A protruding annular measuring working surface is provided on the upper end surface of the end swing tooling. The measuring head of the measuring gauge is pressed against the measuring working surface. Through the above cooperation, the end swing tooling in this solution provides appropriate pressure to ensure that the outer ring, rolling elements and inner ring of the bearing to be measured 4 are in contact, and the runout of the bearing end face can be accurately measured.

[0026] In this embodiment, the end swing tooling 3 is integrally formed. The limiting groove on its lower end face is sleeved on the upper end of the bearing under test 4, and the weight of the end swing tooling 3 is applied to the large end face of the outer ring of the bearing under test 4 as a whole. The flatness of the measurement working surface on its upper end face is ≤0.001 mm. A measuring gauge 2 is provided above the measurement working surface. The measuring gauge 2 is arranged on the swing arm of the height gauge 1. The measuring probe at the lower end of the measuring gauge 2 presses against the measurement working surface to complete the measurement of the bearing runout.

[0027] In this embodiment, the height gauge 1 uses a G906 height gauge.

[0028] In this embodiment, the measuring gauge 2 uses a sector dial indicator.

[0029] During specific implementation, through the cooperation of the runout tooling 3 and the bearing under test 4, the runout tooling 3 provides appropriate pressure to ensure that the outer ring, rolling elements, and inner ring of the bearing under test 4 are in contact, enabling accurate measurement of the runout. The acting force of the runout tooling 3 acts on the large end face of the outer ring of the bearing under test 4 to provide suitable pressure.

[0030] When this device is specifically implemented, its specific measurement process includes the following steps:

[0031] First step, measurement preparation:

[0032] First, select a suitable runout tooling 3 according to the specification dimensions of the bearing under test 4. Then, after mating the bearing under test 4 and the runout tooling 3, place them on the workbench of the height gauge 1 and zero the measuring gauge 2.

[0033] Second step, measure the runout of the bearing under test:

[0034] Continuing from the previous step, as Figure 1 shown, bring the measuring head on the measuring gauge 2 into contact with the measurement working surface, slowly and uniformly rotate the runout tooling 3 and observe the indication value of the measuring gauge 2. After slowly and uniformly rotating 1 week, the swing amplitude of the pointer of the measuring gauge 2 is the runout data of the bearing under test.

[0035] In this embodiment, through the combined use of the height instrument G906 and the runout tooling 3, the end runout of the thin-walled angular contact ball bearing can be effectively measured, providing true and reliable data for the setting and adjustment of process parameters during the production and processing process.

[0036] Embodiment Two

[0037] Embodiment Two is the optimal solution. In combination with the attached Figures 1-5 describe this embodiment:

[0038] As shown in the figure, based on Embodiment One, Embodiment Two optimizes the structure of the end swing tooling 3. Specifically:

[0039] The described end-swing tooling 3 is composed of a tooling load-bearing main body 31 in the shape of a cylinder and a limit ring 32. The upper end surface of the tooling load-bearing main body 31 is provided with a protruding annular measurement working surface 311. The lower end surface thereof is provided with a groove 312 matching the shape of the end of the bearing to be measured and a screw hole 313 for installing a locking screw. The limit ring 32 is fixedly installed on the lower end surface of the tooling load-bearing main body 31 through a locking screw. The inner hole of the limit ring 32 and the groove 312 together form a limit groove for limiting the bearing 4 to be measured.

[0040] When in use, the upper end of the bearing 4 to be measured passes through the inner hole of the limit ring 32 and is assembled in the groove 312, and it is ensured that the large end surface of the outer ring of the bearing 4 to be measured is in contact with the bottom surface of the tooling load-bearing main body 31 located in the groove, so as to ensure that the weight of the tooling load-bearing main body 31 can be directly loaded on the large end surface of the outer ring of the bearing 4 to be measured, so as to ensure that the outer ring, rolling elements and inner ring of the bearing 4 to be measured are in contact, and the runout can be accurately measured.

[0041] The described limit ring 32 is a circular ring body, and three mounting holes 321 for assembling locking screws are uniformly arranged along the circumference of the circular ring body.

[0042] It should be noted that: the measurement method of the measurement device defined in Embodiment 2 is the same as the measurement method described in Embodiment 1, and will not be elaborated here one by one.

[0043] The parts not described in detail in the above embodiments are prior art.

[0044] It should be pointed out that although the present invention has been described through the above embodiments, the present invention can also have many other embodiments. Without departing from the spirit and scope of the present invention, those skilled in the art can obviously make various corresponding changes and deformations to the present invention, but these changes and deformations should all fall within the scope protected by the appended claims of the present invention and their equivalents.

Claims

1. A thin-walled angular contact ball bearing runout measurement device, comprising a height measuring instrument, a measuring gauge mounted on a rocker arm of the height measuring instrument, and a bearing to be measured, characterized in that: An end pendulum tooling is also provided, and a limiting groove is provided on the lower end surface of the end pendulum tooling. The bearing to be measured is placed on the workbench of the height measuring instrument, and its upper end is sleeved in the limiting groove so that the upper end surface of the bearing to be measured fits with the bottom surface of the end pendulum tooling. The upper end surface of the end pendulum tooling is provided with a protruding annular measuring working surface, and the measuring head of the measuring table is pressed against the measuring working surface.

2. A thin-wall angular contact ball bearing runout measurement device according to claim 1, characterized in that: The end pendulum tooling includes a cylindrical tooling weight-bearing body, the upper end surface of which is provided with a protruding annular measuring working surface, and the lower end surface of which is provided with a groove matching the end shape of the measured bearing.

3. A thin-wall angular contact ball bearing runout measurement device according to claim 2, characterized in that: A limiting ring is also provided at the bottom of the tooling weight-bearing body, and the limiting ring is fixedly installed on the lower end surface of the tooling weight-bearing body by a locking screw. The upper end of the bearing to be measured is sleeved in the inner hole of the limiting ring and ensures that the upper end surface of the bearing to be measured is in contact with the bottom surface of the tooling weight-bearing body, so that the weight of the tooling weight-bearing body is directly loaded on the bearing to be measured.

4. A thin-wall angular contact ball bearing runout measurement device according to claim 2, characterized in that: The flatness of the measuring working surface of the tooling load-bearing body is ≤0.001mm.

5. A thin-wall angular contact ball bearing runout measurement device according to claim 3, characterized in that: The limiting ring is a circular ring body, and three mounting holes are evenly arranged along the circumference of the ring body.

6. A thin-wall angular contact ball bearing runout measurement device according to claim 1, characterized in that: The altimeter is a G906 altimeter.

7. A thin-wall angular contact ball bearing runout measurement device according to claim 1, characterized in that: The measuring gauge is a sector-shaped micrometer.

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