Device for adjusting centering of bearing closing tool and bearing hole
By designing a combination of support components and centering bushings, accurate positioning of the bearing end is achieved, solving the alignment problem during bearing end closing and improving the quality and consistency of the end closing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-03-17
AI Technical Summary
In existing technologies, manual support during bearing closing is unstable, making it difficult to align the bearing inner ring hole with the front shaft of the closing tool. The quality is greatly affected by human factors, and the operation skills required are high.
Design a device for adjusting the bearing end fitting and aligning it with the bearing hole, including a support and an alignment bushing. The device achieves accurate positioning and alignment of the bearing through blind holes and clearance fit, and uses steel to improve accuracy.
This improved the quality of the bearing joint, ensured consistent fit throughout, and reduced the impact of operational skills and human factors on quality.
Smart Images
Figure CN223997737U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to machining, and more particularly to a device for adjusting the alignment of the bearing end fitting with the bearing hole. Background Technology
[0002] The installation and securing of bearings is a crucial part of component assembly. Precise bearing assembly directly impacts the performance of critical helicopter components after assembly. Bearing end capping is the final step in bearing assembly, and its quality affects not only the fit between the pressed part and the housing but also subsequent use. Currently, when the bearing end capping fixture is clamped on a drilling machine and the assembly is manually held for end capping, hand movement is easy, making it difficult to align the bearing inner ring hole with the front shaft of the end capping fixture. This requires a high level of operator skill, and the end capping quality is significantly affected by human factors. Utility Model Content
[0003] Purpose of the utility model: To design a device for adjusting the alignment of the bearing end fitting with the bearing hole, thereby achieving accurate alignment and ensuring the quality of the bearing end fitting.
[0004] Technical solution
[0005] A device for adjusting the alignment of a bearing end fitting with a bearing bore is provided, comprising: a support member and an alignment bushing;
[0006] The lower end of the support is the clamping end, which is clamped and fixed to the bench drill table by a vise;
[0007] The upper end of the support is the centering end, and a blind hole is opened on the upper surface of the centering end; the blind hole is used to press the centering bushing into the bearing closing tool, or to put the part with the bearing installed into the part after the centering bushing is removed.
[0008] Furthermore, the diameter of the blind hole is slightly larger than the diameter of the bearing inner ring.
[0009] Furthermore, the blind hole and the centering bushing are fitted with a clearance.
[0010] Furthermore, the bearing end-closing fixture includes an upper cylindrical portion and a lower cylindrical portion;
[0011] The upper cylindrical part is the clamping part, and the lower cylindrical part is the positioning part;
[0012] The positioning part is clearance-fitted with the inner hole of the centering bushing, and the clamping part is fixed on the bench drill.
[0013] Furthermore, both the support components and the centering bushing are made of steel.
[0014] Furthermore, the accuracy requirements for the blind holes of the support components and the outer and inner circles of the centering bushings are related to the alignment requirements of the bearings and parts.
[0015] Beneficial effects:
[0016] 1. By adopting a device to adjust the bearing end-closing tool and align it with the bearing hole, the quality of the bearing end-closing is improved, ensuring that the fit between the end-closing part and the bearing is consistent at all points around the circumference.
[0017] 2. By using a device to adjust the bearing end-closing fixture and align it with the bearing hole, the end-closing quality is guaranteed by the fixture, reducing the impact of operator skills and human factors on the end-closing quality. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of a device for adjusting the alignment of a bearing end fitting with a bearing bore.
[0019] Figure 2 This is a schematic diagram of the bearing end-closing fixture.
[0020] Figure 3 A schematic diagram of the structure for assembling the centering bushing in the bearing end fitting.
[0021] Figure 4 A schematic diagram of the assembly and alignment device for bearing end-closing tooling.
[0022] Figure 5 A schematic diagram of the device for assembling and inserting bearing-mounted parts into the bearing closing fixture. Detailed Implementation
[0023] This utility model provides a device for adjusting the alignment of the bearing end fitting with the bearing hole, such as... Figure 1 As shown, it consists of a support member 1 and a centering bushing 2;
[0024] The lower end of the support component 1 is a clamping end, which is clamped and fixed to the table of the bench drill by a vise;
[0025] The upper end of the support 1 is the centering end, and a blind hole is opened on the upper surface of the centering end; the blind hole is used to press the centering bushing 2 into the bearing closing tool 3, or to put the part 4 with the bearing 5 installed into the part after the centering bushing 2 is removed.
[0026] The diameter of the blind bore is slightly larger than the diameter of the bearing inner ring. The blind bore and the centering bushing 2 are clearance fit.
[0027] Both the support component 1 and the centering bushing 2 are made of steel.
[0028] The accuracy requirements of the blind hole of support 1 and the outer ring and inner circle of centering bushing 2 are related to the centering requirements of bearings and parts.
[0029] like Figure 2 As shown, this is the bearing end-closing fixture 3 currently in use, where the upper cylindrical part 3-a is the clamping part and the lower cylindrical part 3-b is the positioning part;
[0030] like Figure 3 As shown, clamp the bearing closing fixture 3 onto the bench drill like a drill bit, then put the centering bushing 2 onto the lower cylindrical part 3-b of the bearing closing fixture 3, and then turn the handwheel on the bench drill to slowly lower it to approach the support 1 on the table.
[0031] like Figure 4 As shown, place the support 1 on the bench drill table and adjust the position of the support 1 according to the position of the centering bushing 2 until the centering bushing 2 can be just inserted into the center blind hole of the support 1. At this time, fix the support 1 securely.
[0032] like Figure 5 As shown, crank the handwheel on the bench drill to move the bearing end-closing fixture 3 mounted on the bench drill vertically upwards a certain distance, leaving space. Manually remove the centering bushing 2 from the support 1, and then place the part 4 with the bearing 5 mounted on it onto the support 1. The lower end of the bearing should be inside the central blind hole of the support 1. At this time, crank the handwheel on the bench drill to move the bearing end-closing fixture 3 mounted on the bench drill vertically downwards until the lower cylindrical part 3-b of the bearing end-closing fixture 3 is inserted into the inner hole of the bearing. At this time, fix the part 4 and the end-closing operation can begin.
Claims
1. An apparatus for adjusting the alignment of a bearing cup tooling with a bearing bore, comprising: Comprise: Supporting piece (1) and centering bushing (2); The lower end of supporting piece (1) is clamping end, which is clamped and fixed on the table surface of bench drill by vise; The upper end of supporting piece (1) is centering end, and the upper end face of centering end is provided with blind hole; the blind hole is used for pressing centering bushing (2) by bearing receiving tooling (3), or putting part (4) with bearing (5) after taking out centering bushing (2).
2. The apparatus of claim 1, wherein, The diameter of blind hole is slightly larger than the diameter of bearing inner ring.
3. The apparatus of claim 1, wherein, The clearance fit between blind hole and centering bushing (2).
4. The apparatus of claim 1, wherein, Bearing receiving tooling (3) comprises upper end cylindrical part (3-a) and lower end cylindrical part (3-b); The upper end cylindrical part (3-a) is clamping part, and the lower end cylindrical part (3-b) is positioning part; The positioning part is clearance fit with the inner hole of centering bushing (2), and the clamping part is fixed on the bench drill.
5. The apparatus of claim 1, wherein, Supporting piece (1) and centering bushing (2) are both made of steel.
6. The apparatus of claim 1, wherein The precision requirements of the blind hole of supporting piece (1) and the outer ring and inner circle of centering bushing (2) are related to the centering requirements of bearing and part.