CN210998179U - Clamp for superfinishing inner side wall of bearing outer ring - Google Patents
Clamp for superfinishing inner side wall of bearing outer ring Download PDFInfo
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- CN210998179U CN210998179U CN201922070309.9U CN201922070309U CN210998179U CN 210998179 U CN210998179 U CN 210998179U CN 201922070309 U CN201922070309 U CN 201922070309U CN 210998179 U CN210998179 U CN 210998179U
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- clamp
- superfinishing
- anchor clamps
- bearing
- outer ring
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Abstract
The utility model relates to a bearing outer ring inside wall superfinishing anchor clamps belongs to bearing superfinishing technical field, and it includes the anchor clamps body, set firmly at the connecting axle of anchor clamps body one end, set firmly at the locating plate of anchor clamps body one end of keeping away from the connecting axle, a plurality of evenly distributed clamping parts in the outside of anchor clamps body circumference, set up the control mechanism between a plurality of clamping parts and anchor clamps body; the connecting shaft is connected with a rotating part of the superfinishing machine tool; the clamping pieces are positioned on one side of the positioning plate, which is far away from the clamp body; the control mechanism is used for driving the plurality of tensioning pieces to synchronously move along the radial direction of the connecting shaft. It provides a plurality of clamping-force along its radial simultaneously to the bearing inner race through a plurality of holders, fixes the bearing inner race on anchor clamps, has guaranteed the gyration precision of bearing to the bearing inner race of multiple size model can be fixed to the movement distance through controlling a plurality of holders, has improved the practicality of anchor clamps.
Description
Technical Field
The utility model belongs to the technical field of the bearing superfinishing technique and specifically relates to a bearing inner race inside wall superfinishing's anchor clamps are related to.
Background
The bearing is an important part in modern mechanical equipment, and is mainly used for supporting a mechanical rotating body, reducing the friction coefficient during movement and ensuring the rotation precision of machinery. The bearing mainly comprises a bearing inner ring, a bearing outer ring and a rolling or sliding part arranged between the bearing inner ring and the bearing outer ring. In order to ensure the precision requirement of the bearing, the outer side wall of the bearing inner ring and the inner side wall of the bearing outer ring are superfinished to improve the roughness of contact surfaces between rolling elements or sliding elements and the inner side wall and the outer side wall of the bearing.
The superfinishing of the bearing outer ring is a finishing method which applies small pressure to the inner side wall of the bearing outer ring by adopting a fine-grained grinding tool and performs short-stroke reciprocating vibration and slow relative feeding motion so as to realize micro grinding. When the inner side wall of the bearing outer ring is superfinished at the present stage, a special clamp is needed to be matched for use, the clamp is installed on a rotating part of a superfinishing machine tool firstly, the rotating part of the superfinishing machine tool drives the clamp and the bearing outer ring to rotate simultaneously, and then a grinding tool is used for grinding the bearing outer ring.
The existing bearing outer ring clamp can only be suitable for bearing outer rings of the same size and model, when bearing outer rings of other models are processed, the clamp needs to be replaced, the process is complex, and the production cost of the bearing is correspondingly improved by using various clamps.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a bearing inner race inside wall superfinishing's anchor clamps, the bearing inner race of its applicable multiple size model, the bearing inner race of processing other models makes and need not change anchor clamps, and easy operation is convenient to the manufacturing cost of bearing has been reduced.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a bearing outer ring inner side wall superfinishing clamp comprises a clamp body, a connecting shaft fixedly arranged at one end of the clamp body, a positioning plate fixedly arranged at one end of the clamp body, which is far away from the connecting shaft, a plurality of clamping pieces uniformly distributed on the circumferential outer side of the clamp body, and a control mechanism arranged between the plurality of clamping pieces and the clamp body;
the connecting shaft is connected with a rotating part of the superfinishing machine tool;
the clamping pieces are positioned on one side of the positioning plate, which is far away from the clamp body;
the control mechanism is used for driving the plurality of tensioning pieces to synchronously move along the radial direction of the connecting shaft.
Through adopting above-mentioned technical scheme, install anchor clamps on the rotation portion of super smart lathe through the connecting axle, place the bearing inner race between a plurality of holders, and make the axial one end of bearing inner race inconsistent with the locating plate, rethread control mechanism makes a plurality of holders move to bearing one side along the radial of connecting axle, make a plurality of holders and bearing inner race inconsistent and apply one along the radial pressure of bearing inner race, thereby fix the bearing inner race on anchor clamps, reuse super smart lathe and drive the connecting axle and rotate along its axis, thereby make the bearing inner race rotate along its axis, make the grinding apparatus carry out super-finishing to the inside wall of bearing inner race. Through the movement distance of controlling a plurality of holders, but the bearing inner race of the multiple model size of centre gripping, easy operation is convenient, has improved the practicality of anchor clamps to the manufacturing cost of bearing has been reduced.
The present invention may be further configured in a preferred embodiment as: the clamping piece is in a cylindrical shape, and the axis of the clamping piece is parallel to the axis of the connecting shaft.
Through adopting above-mentioned technical scheme, the holder sets up to circular can reduce the area of contact with the bearing inner race to reduce the phenomenon that the bearing inner race is scratched by the holder.
The present invention may be further configured in a preferred embodiment as: a plurality of guide grooves are formed in the positioning plate, the guide grooves are radially arranged along the connecting shaft and correspond to the clamping pieces one to one, one ends of the clamping pieces penetrate through the guide grooves to be connected with the positioning plate in a sliding mode, the clamping pieces are fixedly provided with limiting plates on two sides of the positioning plate respectively, the positioning plate is located between the two limiting plates, and the two sides of the positioning plate are abutted to the two limiting plates respectively.
Through adopting above-mentioned technical scheme, the locating plate plays limiting displacement to the holder, makes the holder can only slide along the direction of guide way, can not follow the axial motion of holder, is favorable to control mechanism to the control of holder.
The present invention may be further configured in a preferred embodiment as: the outer peripheral face of the clamping piece is sleeved with a protective sleeve.
Through adopting above-mentioned technical scheme, the protective sheath replaces the contact of holder and bearing inner race's lateral wall, has further reduced the emergence of holder scratch bearing inner race's lateral wall phenomenon.
The present invention may be further configured in a preferred embodiment as: the control mechanism comprises a screw rotatably connected inside the clamp body, a sliding sleeve in threaded connection with the outer peripheral surface of the screw, a plurality of connecting pieces which are arranged on the outer peripheral surface of the sliding sleeve and correspond to the plurality of clamping pieces one by one, and a driving assembly arranged on the screw;
the axis of the screw is superposed with the axis of the connecting shaft;
the connecting piece includes two connecting rods, and two connecting rods set up along the axial interval of sliding sleeve, the one end of connecting rod is articulated with the sliding sleeve, the connecting piece is located one side that the locating plate is close to the connecting axle and is articulated with the other end of connecting rod, two the connecting rod is parallel to each other.
Through adopting above-mentioned technical scheme, the screw rod rotates, can't follow the screw rod rotation with screw rod threaded connection's sliding sleeve under the restriction of a plurality of connecting pieces and holder, can only follow the axial displacement of screw rod, thereby drive the axial motion of connecting rod along the screw rod, the holder is because the effect of two limiting plates can't follow the connecting rod to axial motion, and then make the connecting rod rotate, and drive the motion of holder along the guide way, the quantity of connecting rod sets up to two, make the sliding sleeve, two connecting rods and holder form parallelogram, make the holder when the motion axis keep parallel with the axis of sliding sleeve always, make behind the holder fixed bearing outer lane, the axis of bearing outer lane and the axis coincidence of sliding sleeve, the gyration precision of bearing has been guaranteed.
The present invention may be further configured in a preferred embodiment as: the driving assembly comprises a crown gear, a driving shaft and a straight gear, wherein the crown gear is sleeved at one end of the screw rod, close to the connecting shaft, and the axis of the crown gear is coincident with the axis of the screw rod;
one end of the driving shaft, which is far away from the straight gear, penetrates through the clamp body and is positioned on the outer side of the clamp body.
Through adopting above-mentioned technical scheme, rotate the drive shaft, the drive shaft drives the spur gear and rotates, and the cooperation of spur gear and crown gear transmits power to the screw rod to the rotation of control screw rod.
The present invention may be further configured in a preferred embodiment as: the number of drive shaft is provided with a plurality ofly, and is a plurality of the drive shaft is along the circumference evenly distributed of screw rod, the number of straight-teeth gear is provided with a plurality ofly, and is a plurality of straight-teeth gear and a plurality of drive shaft one-to-one.
Through adopting above-mentioned technical scheme, a plurality of drive shafts can make the atress balanced when anchor clamps rotate along the circumference evenly distributed of screw rod, make anchor clamps more steady when rotating.
The present invention may be further configured in a preferred embodiment as: and one end of the driving shaft, which is positioned at the outer side of the clamp body, is provided with an inner hexagonal hole.
Through adopting above-mentioned technical scheme, operating personnel can use hexagon socket head cap spanner to rotate the drive shaft, the convenience when having improved anchor clamps and using.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the bearing outer ring is fixed on the clamp by simultaneously providing a plurality of clamping forces along the radial direction of the bearing outer ring through the plurality of clamping pieces, so that the rotation precision of the bearing is ensured, and the bearing outer rings with various sizes and models can be fixed by controlling the movement distances of the plurality of clamping pieces, so that the practicability of the clamp is improved;
2. the synchronous movement of the plurality of clamping pieces is controlled by adopting the matching of the screw and the sliding sleeve, so that the movement distances of the plurality of clamping pieces are the same, and the sliding sleeve, the two connecting rods and the clamping pieces form a parallelogram, so that the axis of the clamping pieces is kept parallel to the axis of the sliding sleeve when moving, and after the bearing outer ring is fixed in the clamp, the axis of the bearing outer ring is superposed with the axis of the sliding sleeve, namely superposed with the axis of the connecting shaft, so that the rotation precision of the bearing outer ring is ensured;
3. on the cooperation through crown gear and straight-tooth gear transmits the screw rod with the rotation of drive shaft, be convenient for to the control of screw rod to the position of drive shaft does not influence the motion of centre gripping subassembly, sets up hexagon socket head cap hole in the drive shaft and is convenient for operating personnel to use hexagon socket head cap spanner rotation drive shaft, has improved the convenience that anchor clamps used.
Drawings
FIG. 1 is a schematic structural view of an embodiment;
fig. 2 is a sectional view showing the structure of the control mechanism.
In the figure, 1, a clamp body; 2. a connecting shaft; 3. positioning a plate; 4. a clamping member; 41. a protective sleeve; 42. a limiting plate; 5. a control mechanism; 51. a screw; 52. a sliding sleeve; 53. a connecting rod; 54. a drive assembly; 541. a crown gear; 542. a drive shaft; 543. a straight gear.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, do the utility model discloses a bearing inner race inside wall superfinishing's anchor clamps, including anchor clamps body 1, anchor clamps body 1 is inside hollow cylinder setting, and the axial one end of anchor clamps body 1 is equipped with the opening. The one end that anchor clamps body 1 kept away from its open-ended has set firmly connecting axle 2, and the axis of connecting axle 2 and the coincidence of the axis of anchor clamps body 1, and 1 open-ended one end of anchor clamps body has set firmly locating plate 3, and locating plate 3 sets up the circular slab of axis and the coincidence of anchor clamps body 1 axis, and the diameter of locating plate 3 is greater than the diameter of anchor clamps body 1. One side that anchor clamps body 1 was kept away from to locating plate 3 is provided with four holders 4, and holder 4 is cylindrical setting, and the axis of holder 4 is parallel with the axis of anchor clamps body 1, and four holders 4 are along the axis evenly distributed of anchor clamps body 1. Four guide grooves are formed in the positioning plate 3 and radially arranged along the positioning plate 3, the four guide grooves correspond to the four clamping pieces 4 one to one, one axial end of each clamping piece 4 penetrates through the positioning plate 3 to be connected with the clamping pieces in a sliding mode, the fixture body 1 is located between the four clamping pieces 4, and the clamping pieces 4 are located on the outer peripheral face, away from one side of the fixture body 1, of the positioning plate 3 and sleeved with the protective sleeves 41. The clamping member 4 is fixedly provided with two limiting plates 42 at two axial sides of the positioning plate 3, the positioning plate 3 is located between the two limiting plates 42, and two axial side walls of the positioning plate 3 are respectively abutted against the two limiting plates 42. A control mechanism 5 is arranged between the clamp body 1 and the four clamping pieces 4, and the control mechanism 5 is used for controlling the four clamping pieces 4 to move along the direction of the guide groove simultaneously.
Referring to fig. 2, the control mechanism 5 includes a screw 51 disposed inside the fixture body 1, an axis of the screw 51 coincides with an axis of the fixture body 1, one axial end of the screw 51 is rotatably connected to an axial sidewall of the fixture body 1, and the other axial end is rotatably connected to the positioning plate 3. A sliding sleeve 52 is connected to the outer circumference of the screw 51 in a threaded manner, and the sliding sleeve 52 is located at one end of the screw 51 close to the clamping member 4. Four connecting pieces are arranged on the peripheral surface of the sliding sleeve 52, the four connecting pieces correspond to the four clamping pieces 4 one by one, namely, the four connecting pieces are uniformly distributed along the axial direction of the sliding sleeve 52, each connecting piece comprises two connecting rods 53, the two connecting rods 53 are arranged along the axial direction of the sliding sleeve 52 at intervals, one end of each connecting rod 53 in the length direction is hinged to the outer side wall of the sliding sleeve 52, the other end of each connecting rod 53 penetrates through the clamp body 1 and is hinged to the clamping pieces 4, and the two connecting rods 53 are parallel to. The end of the screw 51 remote from the sliding sleeve 52 is provided with a drive assembly 54, and the drive assembly 54 is used for controlling the rotation of the screw 51.
Referring to fig. 2, the driving assembly 54 includes a crown gear 541 disposed at an end of the screw 51 far from the clamping member 4, an axis of the crown gear 541 coincides with an axis of the screw 51 and is fixedly connected to the screw, and a tooth shape of the crown gear 541 faces one side of an axial sidewall of the fixture body 1. Be provided with four drive shafts 542 in the anchor clamps body 1, drive shaft 542 follows screw 51's radial setting, and drive shaft 542 is located between crown gear 541 and the axial lateral wall of anchor clamps body 1, and four drive shafts 542 along screw 51's axial evenly distributed, four drive shafts 542 and four 4 one-to-one of holder, and the one end that crown gear 541 was kept away from to drive shaft 542 runs through the lateral wall of anchor clamps body 1 circumference and is connected rather than rotating. One end of the driving shaft 542 close to the crown gear 541 is fixedly provided with a spur gear 543, the axis of the spur gear 543 is coincident with the axis of the driving shaft 542, and the spur gear 543 and the crown gear 541 are meshed with each other. Hexagonal socket has been seted up to the one end that drive shaft 542 is located the anchor clamps body 1 outside, hexagonal socket and hexagon socket spanner looks adaptation, and accessible hexagon socket spanner rotates drive shaft 542.
The implementation principle of the embodiment is as follows: the connecting shaft 2 is arranged on a rotating part of the superfinishing machine tool, so that the superfinishing machine tool can drive the connecting shaft 2 to rotate along the axis of the superfinishing machine tool. Four holder 4 are the open mode when being located initial condition, place the bearing outer lane between four holders 4 to make the axial one end of bearing outer lane inconsistent with locating plate 3, rotate drive shaft 542 through the allen key afterwards, make drive shaft 542 drive spur gear 543 rotate, spur gear 543 passes through crown gear 541 with power transmission to screw 51 on, thereby drive screw 51 and rotate. When screw 51 rotated, sliding sleeve 52 rather than threaded connection can not rotate along with screw 51 is synchronous under the effect of four connecting pieces, can only follow screw 51's axial displacement, sliding sleeve 52 moves to one side of crown gear 541, thereby drive connecting rod 53 synchronous motion, because clamping member 4 can't follow connecting rod 53 along the axial motion of anchor clamps body 1 under the effect of two limiting plates 42, so connecting rod 53 takes place to rotate, thereby drive clamping member 4 along the guide way to the direction motion that is close to anchor clamps body 1, and then make protective sheath 41 inconsistent with the lateral wall of bearing inner race, four clamping member 4 synchronous motion, provide four along its radial clamping-force to the bearing inner race simultaneously, and then fix the bearing inner race in anchor clamps, and four clamping component movement distance are the same, the gyration precision of bearing inner race has been guaranteed. And then the superfinishing machine tool drives the clamp and the bearing outer ring to rotate through the connecting shaft 2, and the inner side wall of the bearing outer ring is superfinished by using a grinding tool. The moving distance of the four clamping pieces 4 can be controlled to clamp bearing outer rings with different model sizes, frequent replacement of the clamp is not needed when different bearing outer rings are processed, the use is convenient, the practicability of the clamp is improved, and the production cost of the bearing is reduced.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a bearing inner race inside wall superfinishing's anchor clamps which characterized in that: the clamp comprises a clamp body (1), a connecting shaft (2) fixedly arranged at one end of the clamp body (1), a positioning plate (3) fixedly arranged at one end of the clamp body (1) far away from the connecting shaft (2), a plurality of clamping pieces (4) uniformly distributed on the circumferential outer side of the clamp body (1), and a control mechanism (5) arranged between the plurality of clamping pieces (4) and the clamp body (1);
the connecting shaft (2) is connected with a rotating part of the superfinishing machine tool;
the clamping pieces (4) are positioned on one side of the positioning plate (3) far away from the clamp body (1);
the control mechanism (5) is used for driving the plurality of tensioning pieces to synchronously move along the radial direction of the connecting shaft (2).
2. The clamp for superfinishing the inner side wall of the bearing outer ring according to claim 1, wherein: the clamping piece (4) is arranged in a cylindrical shape, and the axis of the clamping piece (4) is parallel to the axis of the connecting shaft (2).
3. The clamp for superfinishing the inner side wall of the bearing outer ring according to claim 2, wherein: a plurality of guide grooves have been seted up on locating plate (3), the radial setting of connecting axle (2) is followed to the guide groove, and is a plurality of guide groove and a plurality of holder (4) one-to-one, the one end of holder (4) is passed the guide groove and is slided with locating plate (3) and be connected, limiting plate (42) have set firmly respectively in the both sides of locating plate (3) holder (4), locating plate (3) are located between two limiting plate (42), the both sides of locating plate (3) are inconsistent with two limiting plate (42) respectively.
4. The clamp for superfinishing the inner side wall of the bearing outer ring according to claim 2, wherein: the outer peripheral surface of the clamping piece (4) is sleeved with a protective sleeve (41).
5. The clamp for superfinishing the inner side wall of the bearing outer ring according to claim 3, wherein: the control mechanism (5) comprises a screw rod (51) rotatably connected inside the clamp body (1), a sliding sleeve (52) in threaded connection with the outer peripheral surface of the screw rod (51), a plurality of connecting pieces which are arranged on the outer peripheral surface of the sliding sleeve (52) and correspond to the plurality of clamping pieces (4) one by one, and a driving assembly (54) arranged on the screw rod (51);
the axis of the screw rod (51) is superposed with the axis of the connecting shaft (2);
the connecting piece includes two connecting rods (53), and two connecting rods (53) set up along the axial interval of sliding sleeve (52), the one end and the sliding sleeve (52) of connecting rod (53) are articulated, the connecting piece is located one side that locating plate (3) are close to connecting axle (2) and is articulated with the other end of connecting rod (53), two connecting rod (53) are parallel to each other.
6. The clamp for superfinishing the inner side wall of the bearing outer ring according to claim 5, wherein: the driving assembly (54) comprises a crown gear (541) which is sleeved at one end of the screw rod (51) close to the connecting shaft (2) and has an axis coincident with the axis of the screw rod, a driving shaft (542) which is arranged along the radial direction of the screw rod (51) and is rotatably connected to the clamp body (1), and a spur gear (543) which is fixedly arranged at one end of the driving shaft (542) close to the crown gear (541) and is meshed with the driving shaft;
one end, far away from the straight gear (543), of the driving shaft (542) penetrates through the clamp body (1) and is located on the outer side of the clamp body (1).
7. The clamp for superfinishing the inner side wall of the bearing outer ring according to claim 6, wherein: the number of the driving shafts (542) is provided with a plurality of driving shafts (542), the plurality of driving shafts (542) are uniformly distributed along the circumferential direction of the screw (51), the number of the spur gears (543) is provided with a plurality of spur gears (543), and the plurality of spur gears (543) correspond to the plurality of driving shafts (542) one to one.
8. The clamp for superfinishing the inner side wall of the bearing outer ring according to claim 6, wherein: the driving shaft (542) is provided with a hexagon socket at one end of the outer side of the clamp body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922070309.9U CN210998179U (en) | 2019-11-25 | 2019-11-25 | Clamp for superfinishing inner side wall of bearing outer ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922070309.9U CN210998179U (en) | 2019-11-25 | 2019-11-25 | Clamp for superfinishing inner side wall of bearing outer ring |
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| Publication Number | Publication Date |
|---|---|
| CN210998179U true CN210998179U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922070309.9U Active CN210998179U (en) | 2019-11-25 | 2019-11-25 | Clamp for superfinishing inner side wall of bearing outer ring |
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| Country | Link |
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| CN (1) | CN210998179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935977A (en) * | 2021-01-29 | 2021-06-11 | 刘涛 | Copper gasket burring device |
-
2019
- 2019-11-25 CN CN201922070309.9U patent/CN210998179U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935977A (en) * | 2021-01-29 | 2021-06-11 | 刘涛 | Copper gasket burring device |
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