CN203357217U - Air floating type end face pressing device for deep groove ball bearing inner ring channel superfinishing - Google Patents
Air floating type end face pressing device for deep groove ball bearing inner ring channel superfinishing Download PDFInfo
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- CN203357217U CN203357217U CN 201320245955 CN201320245955U CN203357217U CN 203357217 U CN203357217 U CN 203357217U CN 201320245955 CN201320245955 CN 201320245955 CN 201320245955 U CN201320245955 U CN 201320245955U CN 203357217 U CN203357217 U CN 203357217U
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- Prior art keywords
- inner ring
- air
- face
- bearing inner
- centration axis
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- 238000007667 floating Methods 0.000 title claims abstract description 44
- 238000005188 flotation Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 9
- 238000003754 machining Methods 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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Abstract
The utility model discloses an air floating type end face pressing device for deep groove ball bearing inner ring channel superfinishing. The device comprises a machine frame. A spigot shaft is arranged in the middle of the machine frame, a floating device is fixed to the machine frame, a floating head of the floating device is inserted in the spigot shaft in a sleeved mode, a bearing inner ring to be machined is inserted in the near end of the spigot shaft in a sleeved mode, a supporting block is fixed to a workpiece main shaft, the top end of the spigot shaft is inserted in the supporting block in a sleeved mode, and the bearing inner ring to be machined is clamped between the end face of the supporting block and the top end face of the floating head. The floating head is adopted to press the bearing inner ring to be machined, so when the workpiece main shaft drives the bearing inner ring to be machined to rotate, the spigot shaft cannot rotate along with the bearing inner ring to be machined, namely the spigot shaft is still, the workpiece main shaft cannot be influenced by the spigot shaft when the workpiece main shaft drives the bearing inner ring to be machined to rotate, and machining precision and quality are improved.
Description
Technical field:
The utility model relates to technical field of bearing processing, more specifically to air-flotation type end face hold down gag for a kind of deep groove ball bearing bear inner ring grooved railway superfinishing.
Background technology:
When existing deep groove ball bearing bear inner ring grooved railway is carried out superfinishing, need to there is an axial force that the deep groove ball bearing inner ring closely is pressed onto to the end face be fixed on work spindle and support, realize the end face location, to guarantee bear inner ring grooved railway, obtain good axial location precision.
Traditional hold down gag is, on frame 12A, arrange on axle 13A, centration axis 4A is arranged on axle 13A, the both sides of axle 13A are fixed with pinch rollers 5A, inner ring 3A sleeve to be processed is on centration axis 4A, centration axis 4A front end sleeve enters in the back-up block 2A be fixed with on work spindle 1A, inner ring 3A to be processed is clamped in back-up block 2A and two pinch rollers 5A are upper, and inner ring 3A to be processed mono-side end face is pressed against on the end face of back-up block 2A, the opposite side end face is pressed against on the outer ring of two pinch rollers 5A.
In the superfinishing process, by work spindle 1A, rotate, just driven inner ring 3A to be processed and rotated, also made centration axis 4A rotate together with pinch rollers 5A, due to pinch rollers 5A employing is bearing finished products, have the existence of self vibrating during its rotation, directly have influence on the stability as the centration axis 4A that radially machining benchmark is used,, beat because centration axis 4A has circle simultaneously, can affect the location of the inner ring 3A to be processed on locating shaft 4A when rotating, reduce machining accuracy.
The utility model content:
The purpose of this utility model is to overcome the deficiencies in the prior art, air-flotation type end face hold down gag for a kind of deep groove ball bearing bear inner ring grooved railway superfinishing is provided, it adopts air supported head to compress bearing inner race to be processed, while making work spindle drive bearing inner race rotation to be processed, centration axis can not rotated thereupon, i.e. static centration axis, when work spindle drives bearing inner race to be processed and rotates like this, can not be subject to the impact of centration axis, improve precision and the quality of processing.
The scheme that the utility model solve the technical problem is:
Air-flotation type end face hold down gag for a kind of deep groove ball bearing bear inner ring grooved railway superfinishing, comprise frame, described central rack is provided with centration axis, floating installation is fixed on frame, the air supported head sleeve of floating installation is on centration axis, and bearing inner race sleeve to be processed, at centration axis close end place, is fixed with back-up block on work spindle, the top sleeve of centration axis is in back-up block, and bearing inner race to be processed is clamped between the top end face of the end face of back-up block and air supported head.
Described floating installation structure is fixedly connected on frame for the holder that floats, the plate-like gas nozzle body is fixed in the holder that floats, form annular groove on the sidewall of gas nozzle body, the bottom surface of annular groove forms a plurality of radially valve through holes, form radial direction through hole on the sidewall of unsteady holder, radial direction through hole communicates with valve through hole radially, floating main body is in the holder that floats, the floating main body sleeve is in the central through hole of gas nozzle body, air supported head is fixedly connected on floating main body and stretches out the centre bore of the front wall of the holder that floats, central rack is inserted with axle, centration axis is fixed in axle, centration axis from inside to outside successively sleeve on the centre bore of floating main body and air supported head and stretch out air supported head, gas nozzle body, form the air chamber that floats between floating main body and frame.
Be fixed with cover plate on described air supported head, the top sleeve of air supported head is in the centre bore of cover plate, and cover plate is before the top end face of holder that floats.
The centre bore of described centration axis and floating main body, air supported head has the flying height of 1mm.
Outstanding effect of the present utility model is:
It adopts air supported head and back-up block to compress bearing inner race to be processed, while making work spindle drive bearing inner race rotation to be processed, centration axis can not rotated thereupon, it is static centration axis, when work spindle drives bearing inner race rotation to be processed like this, can not be subject to the impact that centration axis vibration or circle are beated, improve precision and the quality of processing.
The accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A structural representation of Fig. 1;
The structural representation that Fig. 3 is existing equipment;
Fig. 4 is the pinch rollers of existing equipment and the structural representation between locating shaft;
Fig. 5 is the structural representation that changes angle between pinch rollers and locating shaft in existing equipment.
The specific embodiment:
Embodiment, see as shown in Fig. 1 to 2, air-flotation type end face hold down gag for a kind of deep groove ball bearing bear inner ring grooved railway superfinishing, comprise frame 12, described frame 12 middle parts are provided with centration axis 4, floating installation 100 is fixed on frame 12, air supported head 6 sleeves of floating installation 100 are on centration axis 4, bearing inner race 3 sleeves to be processed are at centration axis 4 close end places, be fixed with back-up block 2 on work spindle 1, the top sleeve of centration axis 4 is in back-up block 2, and bearing inner race 3 to be processed is clamped between the top end face of the end face of back-up block 2 and air supported head 6.
Described floating installation 100 structures are fixedly connected on frame 12 for the holder 8 that floats, plate-like gas nozzle body 10 is fixed in the holder 8 that floats, form annular groove 101 on the sidewall of gas nozzle body 10, it can be generally six valve through holes 102 radially that the bottom surface of annular groove 101 forms a plurality of radially valve through hole 102(), form a radial direction through hole 9 on the sidewall of unsteady holder 8, radial direction through hole 9 communicates with valve through hole 102 radially, floating main body 7 is in unsteady holder 8, floating main body 7 sleeves are in the central through hole of gas nozzle body 10, air supported head 6 is fixedly connected on floating main body 7 and stretches out the centre bore of the front wall 81 of the holder 8 that floats, frame 12 middle parts are inserted with axle 13, centration axis 4 is fixed in axle 13, centration axis 4 from inside to outside successively sleeve on the centre bore of floating main body 7 and air supported head 6 and stretch out air supported head 6, gas nozzle body 10, form the air chamber 11 that floats between floating main body 7 and frame 12.
Be fixed with cover plate 5 on described air supported head 6, the top sleeve of air supported head 6 is in the centre bore of cover plate 5, and cover plate 5 is before the top end face of holder 8 that floats.
Described centration axis 4 has the flying height of 1mm with the centre bore of floating main body 7, air supported head 6.
Operation principle: the end that first bearing inner race 3 sleeves to be processed is entered to the nearly top of centration axis 4, then, the top sleeve of centration axis 4 enters in the back-up block 2 be fixed with on work spindle 1, make bearing inner race 3 to be processed between the top end face of the end face of back-up block 2 and air supported head 6, gas is entered by radial direction through hole 9, by being entered by valve through hole 102 radially after annular groove 101, the gap had in the central through hole of gas nozzle body 10 time by floating main body 7 sleeves flows into gas nozzle body 10, in the unsteady air chamber 11 formed between floating main body 7 and frame 12, promote floating main body 7, air supported head 6 moves forward along centration axis 4, make bearing inner race 3 to be processed be clamped between the top end face of the end face of back-up block 2 and air supported head 6, then work spindle 1 rotates, driven bearing inner race 3 to be processed, floating main body 7 and air supported head 6 rotate, centration axis 4 and floating main body 7, the centre bore of air supported head 6 has the flying height of 1mm, this makes gas enter this gap, this makes floating main body 7 not contact in centration axis 4 with air supported head 6, during rotation, centration axis 4 can not rotated yet.
Simultaneously, after gas is saturated in unsteady air chamber 11, its unnecessary gas can flow the space between floating main body 7 and unsteady holder 8, the gap between the centre bore of the last front wall 81 from the holder 8 that floats and floating main body 7, air supported head 6, flow out,
Being fixed with cover plate 5 on air supported head 6 can make tail gas from flowing out the gap between the centre bore of the front wall 81 of the holder 8 that floats and floating main body 7, air supported head 6 flow out in the gap that the top end face of cover plate 5 and unsteady holder 8 forms, prevent that tail gas directly is flushed on bearing inner race 3 to be processed, simultaneously, cover plate 5 can stop that superfinishing oil and rubbish etc. enter in the holder 8 that floats.
Air supported head 6 can be different according to bearing inner race 3 to be processed specification change, simultaneously, air supported head 6, floating main body 7 and cover plate 5 these integral body in the axial float amount for being not more than 2mm.
Fig. 3 to 5 is existing hold down gag, and wherein pinch rollers 5A is bolted to connection in locating shaft 4A both sides.
Claims (4)
1. air-flotation type end face hold down gag for a deep groove ball bearing bear inner ring grooved railway superfinishing, comprise frame (12), it is characterized in that: described frame (12) middle part is provided with centration axis (4), floating installation (100) is fixed on frame (12), air supported head (6) sleeve of floating installation (100) is on centration axis (4), bearing inner race to be processed (3) sleeve is at centration axis (4) close end place, be fixed with back-up block (2) on work spindle (1), the top sleeve of centration axis (4) is in back-up block (2), bearing inner race to be processed (3) is clamped between the top end face of the end face of back-up block (2) and air supported head (6).
2. air-flotation type end face hold down gag for a kind of deep groove ball bearing bear inner ring grooved railway superfinishing according to claim 1, it is characterized in that: described floating installation (100) structure is fixedly connected on frame (12) for the holder (8) that floats, plate-like gas nozzle body (10) is fixed in unsteady holder (8), form annular groove (101) on the sidewall of gas nozzle body (10), the bottom surface of annular groove (101) forms a plurality of radially valve through holes (102), form radial direction through hole (9) on the sidewall of unsteady holder (8), radial direction through hole (9) communicates with valve through hole (102) radially, floating main body (7) is in unsteady holder (8), floating main body (7) sleeve is in the central through hole of gas nozzle body (10), air supported head (6) is fixedly connected on the centre bore that the front wall (81) of unsteady holder (8) was gone up and stretched out to floating main body (7), frame (12) middle part is inserted with axle (13), centration axis (4) is fixed in axle (13), centration axis (4) from inside to outside successively sleeve on the centre bore of floating main body (7) and air supported head (6) and stretch out air supported head (6), gas nozzle body (10), form the air chamber (11) that floats between floating main body (7) and frame (12).
3. air-flotation type end face hold down gag for a kind of deep groove ball bearing bear inner ring grooved railway superfinishing according to claim 1 and 2, it is characterized in that: be fixed with cover plate (5) on described air supported head (6), the top sleeve of air supported head (6) is in the centre bore of cover plate (5), and cover plate (5) is before the top end face of holder (8) that floats.
4. air-flotation type end face hold down gag for a kind of deep groove ball bearing bear inner ring grooved railway superfinishing according to claim 1 and 2, it is characterized in that: described centration axis (4) has the flying height of 1mm with the centre bore of floating main body (7), air supported head (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320245955 CN203357217U (en) | 2013-05-07 | 2013-05-07 | Air floating type end face pressing device for deep groove ball bearing inner ring channel superfinishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320245955 CN203357217U (en) | 2013-05-07 | 2013-05-07 | Air floating type end face pressing device for deep groove ball bearing inner ring channel superfinishing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203357217U true CN203357217U (en) | 2013-12-25 |
Family
ID=49805037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320245955 Expired - Fee Related CN203357217U (en) | 2013-05-07 | 2013-05-07 | Air floating type end face pressing device for deep groove ball bearing inner ring channel superfinishing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203357217U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081953A (en) * | 2015-07-31 | 2015-11-25 | 濮阳贝英数控机械设备有限公司 | Bearing inner ring internal diameter centering and end face support driving mechanism |
| CN105485073A (en) * | 2016-01-17 | 2016-04-13 | 浙江陀曼智造科技有限公司 | Hydraulic system of super-finishing machine |
| CN105563298A (en) * | 2016-01-17 | 2016-05-11 | 浙江陀曼智造科技有限公司 | Centering mechanism of super-fine machine |
-
2013
- 2013-05-07 CN CN 201320245955 patent/CN203357217U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081953A (en) * | 2015-07-31 | 2015-11-25 | 濮阳贝英数控机械设备有限公司 | Bearing inner ring internal diameter centering and end face support driving mechanism |
| CN105081953B (en) * | 2015-07-31 | 2018-02-13 | 濮阳贝英数控机械设备有限公司 | Bearing inner ring interior diameter is felt relieved and end surface supporting drive mechanism |
| CN105485073A (en) * | 2016-01-17 | 2016-04-13 | 浙江陀曼智造科技有限公司 | Hydraulic system of super-finishing machine |
| CN105563298A (en) * | 2016-01-17 | 2016-05-11 | 浙江陀曼智造科技有限公司 | Centering mechanism of super-fine machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220324 Address after: 312500 Building 1, No. 199 Titan Avenue, Qixing street, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Xinchun aerospace bearing Co.,Ltd. Address before: 312500, 199 Titan Avenue, Qixing street, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: zhejiang xcc group Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 |