CN117325011A - High-precision coaxiality machining and grinding device and method for bearing - Google Patents
High-precision coaxiality machining and grinding device and method for bearing Download PDFInfo
- Publication number
- CN117325011A CN117325011A CN202311211175.2A CN202311211175A CN117325011A CN 117325011 A CN117325011 A CN 117325011A CN 202311211175 A CN202311211175 A CN 202311211175A CN 117325011 A CN117325011 A CN 117325011A
- Authority
- CN
- China
- Prior art keywords
- inner hole
- grinder
- clamping ring
- bearing
- collar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003754 machining Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/48—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention belongs to the technical field of machining, and particularly relates to a high-precision coaxiality machining and grinding device and method for a bearing.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to a high-precision coaxiality machining and grinding device and method for a bearing.
Background
The bearing is a common mechanical part and is widely applied to various mechanical equipment, the excircle and the inner hole of the bearing are two important parts of the bearing, and the processing technology of the bearing has important influence on the performance and the quality of the bearing.
In machining, the outer circle of the bearing has coaxiality requirement with the inner hole, and particularly when the outer circle and the inner hole have high-precision coaxiality requirement, the machining is particularly difficult. The grinding fixture capable of realizing coaxiality processing of the inner hole and the outer circle of the part is required, and the requirement of high-precision coaxiality of the outer circle and the inner hole of the bearing is met.
Disclosure of Invention
The purpose of the invention is that: the invention provides a device and a method for processing and grinding high-precision coaxiality of a bearing, which can stabilize the grinding quality, effectively reduce the processing time and solve the problem that the high-precision coaxiality of the excircle and the inner hole of the bearing is difficult to process.
The technical proposal of the invention
The utility model provides a bearing high accuracy axiality processing grinder, includes the rand, the rand be cylindrical structure, inside be provided with high accuracy coaxial big, little step hole, the rand on be provided with recess one and recess two, recess one extend from rand terminal surface to rand outer cylinder, recess two extend from rand other end terminal surface to rand outer cylinder, recess one and recess two are arranged in turn for the rand forms the cylindrical structure of "S" shape cylinder.
Further, the large step hole in the clamping ring is an inner hole B, the small step hole is an inner hole C, and the coaxiality of the inner hole B and the inner hole C is 0.002.
Further, the inner hole B is matched with the outer circle of the bearing part to be processed.
Further, the inner hole C is matched with an inner hole of a bearing part to be processed.
A method for processing a bearing by a processing grinding device with high precision and coaxiality comprises the following steps:
step 1: inserting the grinder 3 into the inner bore C of the collar, the inner bore B of the collar 1 will also be enlarged by the grinder 3 due to the elasticity of the "S" cylindrical structure of the collar;
step 2: placing the bearing part 2 into the inner hole B of the collar 1;
step 3: taking out the grinder 3 from the inner hole C of the clamping ring, and simultaneously taking out the grinder 3, the inner hole B of the clamping ring 1 is contracted due to the S-shaped cylindrical surface structure of the clamping ring 1, and the bearing part 2 is clamped and fixed in the inner hole B by the elasticity of the clamping ring 1;
step 4: clamping one end of a grinder 3 on a machine tool, wherein the grinder 3 can rotate around an axis;
step 5: slowly passing the other end of the grinder 3 through the collar 1 fitted with bearing parts;
step 6: slowly rotating the clamping ring 1, and along with the trend of axial movement, continuing to move the clamping ring 1 and the bearing part 2, wherein the outer cylindrical surface D of the grinder 3 is contacted with the inner wall surface of the inner hole C of the part;
step 7: starting the machine tool, starting the grinder 3 to rotate, starting the grinding operation, grinding the hole to the required size, and removing the collar assembled with the bearing part from the grinder because the inner hole B, C of the collar has high-precision coaxiality, so that the outer cylindrical surface of the bearing part matched with the inner hole B of the collar and the inner hole of the bearing part matched with the inner hole C of the collar also have high coaxiality.
Further, in step 6, the inner bore C of the collar is in full contact with the outer cylindrical surface D of the grinder 3, having a close fitting relationship with the outer cylindrical surface D of the grinder 3, and does not allow for the creation of a wobble or clearance.
Further, the grinding work is finished, the grinder 3 is inserted into the inner hole C of the clamping ring 1, and the inner hole B of the clamping ring 1 is enlarged by the grinder 3 due to the S-shaped structure of the clamping ring, at the moment, the bearing part is taken down, and the bearing part is finished.
In step 7, the outer cylindrical surface of the bearing part 2 and the inner hole B of the collar 1 are fixed by clamping, the inner hole B and the inner hole C of the collar 1 have the requirement of 0.002 of coaxiality, the outer cylindrical surface D of the grinder 3 is used for aligning the inner hole C of the collar 1, the outer cylindrical surface D of the grinder 3 and the collar 1 do not generate shaking or gaps, and the requirement of 0.01 of coaxiality of the outer cylindrical surface and the inner hole of the bearing part 1 is met.
The invention has the beneficial effects that: the invention provides a device and a method for processing and grinding the coaxiality of a bearing with high precision, which realize the coaxiality of an inner hole and an outer circle of a part.
Drawings
FIG. 1 is a front view of the device of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an isometric view of the device of the present invention;
FIG. 4 is an isometric view of a bearing component;
FIG. 5 is a front view of a bearing component;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a front view of a collar with bearing parts assembled;
FIG. 8 is a cross-sectional view taken along the direction B-B of FIG. 7;
FIG. 9 is a schematic view of lapping processing;
in the figure:
1-clamping ring, 2-bearing part and 3-grinder.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention.
1-8, an embodiment of a high-precision machining and grinding device for coaxiality of a bearing of the invention comprises a clamping ring, wherein the clamping ring is of a cylindrical structure, high-precision coaxial large and small step inner holes are formed in the clamping ring, a first groove and a second groove are formed in the clamping ring, the first groove extends from one end face of the clamping ring to the outer cylindrical surface of the clamping ring, the second groove extends from the other end face of the clamping ring to the outer cylindrical surface of the clamping ring, the first groove and the second groove are alternately arranged, so that the clamping ring forms a cylindrical structure of an S-shaped cylindrical surface, a large step hole in the clamping ring is an inner hole B, a small step hole is an inner hole C, the inner hole B is matched with the outer circle of a bearing part to be machined, and the inner hole C is matched with the inner hole of the bearing part to be machined; the coaxiality of the inner hole B and the inner hole C is 0.002.
A second embodiment of the invention is: the utility model provides a bearing axiality high accuracy processing grinder, wherein main structure is the rand. The clamping ring has an S-shaped structure, can shrink under the action of external force, can rebound through self elasticity after the external force disappears, has the characteristics of two step holes of a concave groove, and has the requirement of high-precision coaxiality for two step holes one by one.
Because of the S-shaped structure of the clamping ring, the large step hole of the clamping ring can clamp the outer circle of the part, and the outer circle of the part is tightly contacted; the invention provides a high-precision machining grinding clamp and a machining method for the coaxiality of a bearing, which can be used for realizing the high-precision machining of the coaxiality of the inner hole of a part and the excircle of the part.
The size of the inner hole C of the clamping ring 1 is the same as that of the part 2 or the size of the inner hole C of the clamping ring 1 is larger than that of the part 2; structures for achieving the elastic force of the collar 1 include, but are not limited to, an "S" shaped structure, a fully open structure, and an external force gripping form; the coaxiality requirements of the inner hole B and the inner hole C of the clamping ring 1 include, but are not limited to, forms achieved by post-supplementing machining.
A third embodiment of the invention is:
the method for processing the bearing with high precision and coaxiality by using the processing and grinding device comprises the following steps:
step 1: inserting the grinder 3 into the inner bore C of the collar, the inner bore B of the collar 1 will also be enlarged by the grinder 3 due to the elasticity of the "S" cylindrical structure of the collar;
step 2: placing the bearing part 2 into the inner hole B of the collar 1;
step 3: taking out the grinder 3 from the inner hole C of the clamping ring, and simultaneously taking out the grinder 3, the inner hole B of the clamping ring 1 is contracted due to the S-shaped cylindrical surface structure of the clamping ring 1, and the bearing part 2 is clamped and fixed in the inner hole B by the elasticity of the clamping ring 1;
step 4: clamping one end of a grinder 3 on a machine tool, wherein the grinder 3 can rotate around an axis;
step 5: slowly passing the other end of the grinder 3 through the collar 1 fitted with bearing parts;
step 6: slowly rotating the clamping ring 1, and along with the trend of axial movement, continuing to move the clamping ring 1 and the bearing part 2, wherein the outer cylindrical surface D of the grinder 3 is contacted with the inner wall surface of the inner hole C of the part; the inner bore C of the collar is in full contact with the outer cylindrical surface D of the grinder 3, having a close fitting relationship with the outer cylindrical surface D of the grinder 3, and does not allow for the creation of a wobble or clearance.
Step 7: starting the machine tool, starting the grinder 3 to rotate, starting the grinding operation, grinding the hole to the required size, and removing the collar assembled with the bearing part from the grinder because the inner hole B, C of the collar has high-precision coaxiality, so that the outer cylindrical surface of the bearing part matched with the inner hole B of the collar and the inner hole of the bearing part matched with the inner hole C of the collar also have high coaxiality. The outer cylindrical surface of the bearing part 2 and the inner hole B of the clamping ring 1 are fixed by clamping, the inner hole B of the clamping ring 1 and the inner hole C have the requirement of 0.002 of coaxiality, the outer cylindrical surface D of the grinder 3 is used for aligning the inner hole C of the clamping ring 1, the outer cylindrical surface D of the grinder 3 and the clamping ring 1 do not generate shaking or gaps, and the requirement of 0.01 of coaxiality of the outer cylindrical surface of the bearing part 1 and the inner hole is met.
And 8, finishing the hole grinding operation, penetrating the grinder 3 into the inner hole C of the clamping ring 1, and taking down the bearing part at the moment because the inner hole B of the clamping ring 1 is enlarged by the grinder 3 due to the S-shaped structure of the clamping ring, and finishing the processing of the bearing part.
The method of this embodiment includes, but is not limited to, machining the part feature to be the coaxiality requirement of the outer circle and the inner hole, and the part feature to be the coaxiality requirement of the threads to the inner hole.
A fourth embodiment of the invention is:
please refer to fig. 9, which illustrates a lapping process. In the invention, when the hole is ground, the grinder 3 is firstly inserted into the inner hole C of the clamping ring, the inner hole B of the clamping ring 1 is enlarged by the grinder 3 due to the S-shaped structure of the clamping ring, at the moment, the part 2 is put into the clamping ring 1, the grinder 3 is taken out, and the inner hole B of the clamping ring 1 is contracted due to the S-shaped structure of the clamping ring 1 when the grinder 3 is taken out, so that the part 2 is clamped and fixed by the elasticity of the clamping ring 1, and the part 2 is prevented from shaking and displacement.
After the placement is completed, the hole is formed, that is, the grinder 3 is clamped on the machine tool, the grinder 3 can rotate around the axis, the clamping ring of the assembled part slowly passes through the grinder, particularly, the inner hole C of the clamping ring is required to be contacted with the outer circle D of the grinder 3, the outer circle D of the grinder 3 has a tight fit, the outer circle D of the grinder 3 is required to be completely contacted with the inner hole C of the clamping ring 1, and shaking or clearance is not allowed to be generated. At this time, the collar 1 is slowly rotated, and along with the trend of axial movement, the collar 1 and the part 2 continue to move, the outer circle D of the grinder 3 is contacted with the inner hole C of the part, at this time, the machine tool is started, the grinder 3 starts to rotate, normal hole grinding operation is started, after the hole is ground to the required size, the hole grinding operation is finished, the grinder 3 penetrates into the inner hole C of the collar 1, and due to the S-shaped structure of the collar, the inner hole B of the collar 1 is enlarged by the grinder 3, at this time, the part can be taken down, and the part is finished.
Because the outer circle B of the part 2 and the inner hole B of the clamping ring 1 are fixed by clamping, and the inner hole B and the inner hole C of the clamping ring 1 have the requirement of 0.002 coaxiality, the outer circle D of the grinder 3 is used for aligning the inner hole C of the clamping ring 1, and the outer circle D of the grinder 3 and the clamping ring 1 are required to not allow shaking or clearance to be generated, so that the requirement of 0.01 coaxiality of the part 1 can be met.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the invention are adopted, all within the scope of the invention.
Claims (8)
1. The utility model provides a bearing high accuracy axiality processing grinder, its characterized in that, includes the rand, the rand be cylindrical structure, inside be provided with the coaxial big, small step hole of high accuracy, the rand on be provided with recess one and recess two, recess one extend from rand terminal surface to rand outer cylinder, recess two extend from rand other end terminal surface to rand outer cylinder, recess one and recess two are arranged in turn for the rand forms the cylindrical structure of "S" shape cylinder.
2. The high-precision coaxiality machining and grinding device for the bearing of claim 1 is characterized in that a large step hole in the clamping ring is an inner hole B, a small step hole is an inner hole C, and coaxiality of the inner hole B and the inner hole C is 0.002.
3. The high-precision coaxiality machining and grinding device for the bearing is characterized in that the inner hole B is matched with the outer circle of the bearing part to be machined.
4. A high-precision coaxiality machining and grinding device for bearings according to claim 3, wherein the inner hole C is matched with an inner hole of a bearing part to be machined.
5. A method of high precision coaxiality machining a bearing using the machining abrasive device of claim 4, comprising the steps of:
step 1: inserting the grinder into the inner hole C of the clamping ring, wherein the inner hole B of the clamping ring is also enlarged by the grinder 3 due to the elasticity of the S-shaped cylindrical surface structure of the clamping ring;
step 2: placing the bearing part into an inner hole B of the clamping ring;
step 3: taking out the grinder from the inner hole C of the clamping ring, and clamping and fixing the bearing part in the inner hole B by the elasticity of the clamping ring due to the shrinkage of the inner hole B of the clamping ring due to the S-shaped cylindrical surface structure of the clamping ring when the grinder is taken out;
step 4: clamping one end of a grinder on a machine tool, wherein the grinder can rotate around an axis;
step 5: slowly passing the other end of the grinder through a collar equipped with bearing parts;
step 6: slowly rotating the clamping ring, and along with the trend of axial movement, continuously moving the clamping ring and the bearing part, wherein the outer cylindrical surface D of the grinder is contacted with the inner wall surface of the inner hole C of the part;
step 7: starting the machine tool, starting the grinder to rotate, starting the grinding operation, grinding the hole to the required size, and taking the collar assembled with the bearing part off the grinder because the inner hole B, C of the collar has high-precision coaxiality, so that the outer cylindrical surface of the bearing part matched with the inner hole B of the collar and the inner hole of the bearing part matched with the inner hole C of the collar also have high coaxiality.
6. The method of high precision machining a bearing with a machining grinder according to claim 5, wherein in step 6, the inner bore C of the collar is in full contact with the outer cylindrical surface D of the grinder, having a close fitting relationship with the outer cylindrical surface D of the grinder, without allowing for wobble or play.
7. The method for high-precision coaxiality machining of bearings using a machining and grinding device according to claim 5, wherein the grinding work is finished, the grinder is inserted into the inner hole C of the collar 1, the inner hole B of the collar is enlarged by the grinder due to the S-shaped structure of the collar, and the bearing part is removed at this time, and the machining of the bearing part is finished.
8. The method for high-precision coaxiality processing of the bearing by using the processing and grinding device according to claim 5, wherein in the step 7, the outer cylindrical surface of the bearing part and the inner hole B of the clamping ring are fixed by clamping, the inner hole B of the clamping ring and the inner hole C have the coaxiality requirement of 0.002, the outer cylindrical surface D of the grinder is used for aligning the inner hole C of the clamping ring, the outer cylindrical surface D of the grinder and the clamping ring do not generate shaking or clearance, and the coaxiality requirement of the outer cylindrical surface of the bearing part and the inner hole is met by 0.01.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311211175.2A CN117325011A (en) | 2023-09-19 | 2023-09-19 | High-precision coaxiality machining and grinding device and method for bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311211175.2A CN117325011A (en) | 2023-09-19 | 2023-09-19 | High-precision coaxiality machining and grinding device and method for bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117325011A true CN117325011A (en) | 2024-01-02 |
Family
ID=89292365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311211175.2A Pending CN117325011A (en) | 2023-09-19 | 2023-09-19 | High-precision coaxiality machining and grinding device and method for bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117325011A (en) |
-
2023
- 2023-09-19 CN CN202311211175.2A patent/CN117325011A/en active Pending
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