CN218135038U - Bearing turning aligning clamp - Google Patents
Bearing turning aligning clamp Download PDFInfo
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- CN218135038U CN218135038U CN202222283002.9U CN202222283002U CN218135038U CN 218135038 U CN218135038 U CN 218135038U CN 202222283002 U CN202222283002 U CN 202222283002U CN 218135038 U CN218135038 U CN 218135038U
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Abstract
A bearing turning aligning clamp relates to the technical field of bearing machining. The problem that clamping is unstable due to the fact that a blank of a bearing outer ring is a forged piece and the section of the blank is generally elliptical when an existing three-jaw chuck is used for machining the bearing outer ring is solved; the product is deformed after the large clamping force is eliminated, so that the design requirement of the bearing cannot be met. Three floating clamping blocks are respectively arranged on three clamping jaws on a three-jaw chuck body through bolts, and two clamping blocks are uniformly arranged on the arc end surface of each floating clamping block, so that three contact points of the original three-jaw chuck are increased into six contact points, and saw teeth are processed on the lower surface of each clamping block, so that the friction force is increased, and the clamping force can be correspondingly reduced, the oval blank is clamped, and the clamping stability is improved; and then can reduce the clamp force, avoid producing the deformation because the product of great clamp force elimination, satisfied bearing design requirement. The utility model is suitable for a bearing processing.
Description
Technical Field
The utility model relates to a bearing processing technology field, concretely relates to bearing car processing aligning anchor clamps.
Background
The mass production of bearing processing is common, so the clamp in the bearing turning is a key part. The lathe machining workpiece is repeatedly positioned, clamped and clamped, and the workpiece needs to be clamped, so that the lathe machining workpiece has the characteristics of automatic positioning, reliable clamping and rapid workpiece clamping. The requirement of mass production of the bearing can be met.
Currently, the working principle of the existing three-jaw chuck is that the clamping blocks move radially to clamp the workpiece. The clamping blocks can be adjusted according to the size of the machined workpiece.
The method has the defects that the processed workpiece is a blank forged piece, and the outer diameter size and the ellipse of the blank forged piece have certain errors. And the clamping surface of the three-jaw clamping block is an inner arc surface. The clamping is unstable due to the irregular outer diameter surface of the blank; if the workpiece is clamped firmly, the clamping pressure of the three-jaw chuck is required to be increased, so that the workpiece is deformed; after the machining is finished, the workpiece restores to a deformed state after the clamping force is eliminated; therefore, when thin-wall parts are machined, the roundness of the parts is extremely easy to be out of tolerance, and the inner surface of the blank is difficult to be machined into a qualified inner circle by the outer diameter (outer surface) of the blank.
In summary, when the conventional three-jaw chuck is used for processing the bearing outer ring, because the blank of the bearing outer ring is a forged piece and the section of the blank is generally elliptical, when the three-jaw chuck is used for clamping, the phenomenon of unstable clamping is caused; if the clamping force is increased and the machining is carried out, the product is deformed after the clamping force is eliminated, and the design requirement of the bearing cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that when the existing three-jaw chuck is used for processing the bearing outer ring, the clamping is unstable when the three-jaw chuck is reused for clamping because the blank of the bearing outer ring is a forged piece and the section of the blank is generally elliptic; if the clamping force is increased and the machining is carried out, the problem that the design requirements of the bearing cannot be met due to the fact that the clamping force is eliminated and the deformation of a product is generated after the machining is carried out is solved, and therefore the centering clamp for machining the bearing is provided.
The utility model discloses a bearing turning aligning clamp, the concrete structure of which comprises a positioning block, a positioning pin, a fixing bolt, a clamping block, a floating clamping block and a three-jaw chuck body;
the edge of the upper surface of a chuck on a three-jaw chuck body is uniformly provided with three positioning blocks along the circumferential direction, the axes of the positioning blocks and the axes of clamping jaws on the three-jaw chuck body are arranged in a collinear manner, the upper surface of each clamping jaw on the three-jaw chuck body is provided with a floating clamping block, the floating clamping blocks are fixedly connected with the clamping jaws on the three-jaw chuck body through bolts, one side end face of each floating clamping block is in a circular arc shape, the upper surface of each floating clamping block is provided with a through hole, the upper surface of each clamping jaw on the three-jaw chuck body is provided with a counter bore, a positioning pin is arranged inside each through hole on each floating clamping block, the bottom of each positioning pin is inserted into each counter bore on the clamping jaw of the three-jaw chuck body, the circular arc end faces of the floating clamping blocks are uniformly provided with two clamping blocks, and the clamping blocks are fixedly connected with the floating clamping blocks through fixing bolts;
furthermore, sawteeth are machined on the lower surface of the clamping block;
furthermore, the clamping block is cuboid;
furthermore, two square grooves are uniformly formed in the arc end face of the floating clamping block;
furthermore, the top end of the clamping block is inserted into the square groove on the arc end surface of the floating clamping block;
furthermore, both ends of the top surface of the floating clamping block are respectively provided with a counter bore;
furthermore, a fixing bolt is arranged inside the counter bore;
furthermore, when the three-jaw chuck is used, the three floating clamping blocks are respectively arranged on the three clamping jaws on the three-jaw chuck body, the two clamping blocks are uniformly arranged on the arc end surface of each floating clamping block, and the clamping blocks are fixedly connected with the floating clamping blocks through fixing bolts, so that three contact points of the original three-jaw chuck are increased into six contact points, and saw teeth are machined on the lower surface of each clamping block, namely, friction is increased, and correspondingly, the clamping force can be reduced, so that the elliptical blank is clamped, and the clamping stability is improved; and then can reduce the clamp force, avoid producing the deformation because the product of great clamp force elimination, satisfied bearing design requirement.
Compared with the prior art, the utility model following beneficial effect has:
the utility model overcomes the defects of the prior art, three floating clamping blocks are respectively arranged on three clamping jaws on a three-jaw chuck body through bolts, two clamping blocks are evenly arranged on the arc end surface of each floating clamping block, and the clamping blocks are fixedly connected with the floating clamping blocks through fixing bolts, so that three contact points of the original three-jaw chuck are increased into six contact points, and sawteeth are processed on the lower surface of each clamping block, namely, friction is increased, and correspondingly, the clamping force can be reduced, so that the oval blank is clamped, and the stability of clamping is improved; and then can reduce the clamp force, avoid producing the deformation because the product of great clamp force elimination, satisfied bearing design requirement.
Drawings
Fig. 1 is a front view of a bearing turning aligning fixture according to the present invention;
FIG. 2 is a front view of a floating clamp block in the aligning clamp for bearing turning according to the present invention;
fig. 3 is a side view of a clamping block in the bearing turning aligning fixture.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 3, and the specific structure of the center-adjusting fixture for bearing turning according to the embodiment includes a positioning block 1, a positioning pin 2, a fixing bolt 4, a clamping block 5, a floating clamping block 6 and a three-jaw chuck body 7;
the edge of the upper surface of a chuck on a three-jaw chuck body 7 is uniformly provided with three positioning blocks 1 along the circumferential direction, the axis of each positioning block 1 and the axis of a clamping jaw on the three-jaw chuck body 7 are arranged in a collinear manner, the upper surface of each clamping jaw on the three-jaw chuck body 7 is provided with a floating clamping block 6, the floating clamping blocks 6 are fixedly connected with the clamping jaws on the three-jaw chuck body 7 through bolts, one side end face of each floating clamping block 6 is arc-shaped, the upper surface of each floating clamping block 6 is provided with a through hole, the upper surface of each clamping jaw on the three-jaw chuck body 7 is provided with a counter bore, a positioning pin 2 is arranged inside each through hole on the floating clamping block 6, the bottom of each positioning pin 2 is inserted into the counter bore on the clamping jaw of the three-jaw chuck body 7, the arc end faces of the floating clamping blocks 6 are uniformly provided with two clamping blocks 5, and the clamping blocks 5 are fixedly connected with the floating clamping blocks 6 through fixing bolts 4;
in the specific embodiment, when the three-jaw chuck is used, the three floating clamping blocks 6 are respectively arranged on three clamping jaws on the three-jaw chuck body 7, the arc end surface of each floating clamping block 6 is uniformly provided with the two clamping blocks 5, and the clamping blocks 5 are fixedly connected with the floating clamping blocks 6 through the fixing bolts 4, so that three contact points of the original three-jaw chuck are increased into six contact points, and sawteeth are processed on the lower surface of each clamping block 5, so that the friction force is increased, the clamping force can be correspondingly reduced, the oval blank 3 can be clamped, and the clamping stability is improved; and then can reduce the clamp force, avoid producing the deformation because the product of great clamp force elimination, satisfied bearing design requirement.
The second embodiment is as follows: the present embodiment will be described with reference to fig. 3, which is a further limitation of the fixture according to the first embodiment, and the center adjusting fixture for bearing lathe processing according to the present embodiment is configured such that saw teeth are processed on the lower surface of the clamp block 5;
in the specific embodiment, the saw teeth are machined on the lower surface of the clamping block 5, so that friction is increased, clamping force can be correspondingly reduced, and clamping stability is improved.
The third concrete implementation mode: the present embodiment will be described with reference to fig. 3, which is a further limitation of the jig according to the third embodiment, and the clamping block 5 is a rectangular parallelepiped in the center-adjusting jig for bearing turning according to the present embodiment.
The fourth concrete implementation mode: the present embodiment is described with reference to fig. 2, and the present embodiment further defines the fixture according to the first embodiment, and in the aligning fixture for bearing turning according to the present embodiment, two square grooves are uniformly formed on the arc end surface of the floating clamp block 6.
The fifth concrete implementation mode: the present embodiment will be described with reference to fig. 1 and 2, and the present embodiment is a further limitation of the fixture according to the third or fourth embodiment, and in the center-adjusting fixture for bearing turning according to the present embodiment, the tip of the clamp block 5 is inserted into the square groove on the arc end surface of the floating clamp block 6;
in the specific embodiment, the clamping block 5 is limited by inserting the top end of the clamping block 5 into the square groove on the arc end surface of the floating clamping block 6.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 2, and is a further limitation of the fixture according to the first embodiment, and in the aligning fixture for bearing turning according to the present embodiment, two countersunk holes are respectively formed at both ends of the top surface of the floating clamp block 6.
The seventh embodiment: the present embodiment will be described with reference to fig. 2, and the present embodiment is a further limitation of the fixture according to the sixth embodiment, and the self-aligning fixture for bearing turning according to the present embodiment is configured such that a fixing bolt 4 is provided inside the counterbore.
Principle of operation
When the three-jaw chuck is used, the three floating clamping blocks 6 are respectively arranged on three clamping jaws on the three-jaw chuck body 7, two clamping blocks 5 are uniformly arranged on the arc end surface of each floating clamping block 6, and the clamping blocks 5 are fixedly connected with the floating clamping blocks 6 through the fixing bolts 4, so that three contact points of the original three-jaw chuck are increased into six contact points, and sawteeth are processed on the lower surface of each clamping block 5, namely, friction is increased, and clamping force can be correspondingly reduced, so that the oval blank 3 is clamped, and the clamping stability is improved; and then can reduce the clamp force, avoid producing the deformation because the product of great clamp force elimination, satisfied bearing design requirement.
Claims (7)
1. The utility model provides a bearing car processing aligning anchor clamps which characterized in that: the three-jaw chuck comprises a positioning block (1), a positioning pin (2), a fixing bolt (4), a clamping block (5), a floating clamping block (6) and a three-jaw chuck body (7);
the three-jaw chuck is characterized in that three positioning blocks (1) are uniformly arranged at the edge of the upper surface of a chuck on a three-jaw chuck body (7) along the circumferential direction, the axis of each positioning block (1) and the axis of a clamping jaw on the three-jaw chuck body (7) are arranged in a collinear manner, the upper surface of each clamping jaw on the three-jaw chuck body (7) is provided with a floating clamping block (6), the floating clamping block (6) is fixedly connected with the clamping jaw on the three-jaw chuck body (7) through a bolt, one side end face of each floating clamping block (6) is arc-shaped, the upper surface of each floating clamping block (6) is provided with a counter bore, the inner part of each through bore on the floating clamping block (6) is provided with a positioning pin (2), the bottom of each positioning pin (2) is inserted into the counter bores on the clamping jaws of the three-jaw chuck body (7), two clamping blocks (5) are uniformly arranged on the arc end faces of the floating clamping blocks (6), and the clamping blocks (5) are fixedly connected with the floating clamping blocks (6) through fixing bolts (4).
2. The bearing turning aligning clamp of claim 1, wherein: the lower surface of the clamping block (5) is provided with sawteeth.
3. The bearing turning centering clamp according to claim 2, characterized in that: the clamping block (5) is cuboid.
4. The bearing turning centering clamp according to claim 1, characterized in that: the arc end surface of the floating clamping block (6) is uniformly provided with two square grooves.
5. The bearing turning aligning clamp according to claim 3 or 4, wherein: the top end of the clamping block (5) is inserted into the square groove on the arc end surface of the floating clamping block (6).
6. The bearing turning aligning clamp of claim 1, wherein: two ends of the top surface of the floating clamping block (6) are respectively provided with a counter bore.
7. The bearing turning aligning clamp of claim 6, wherein: and a fixing bolt (4) is arranged in the counter bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222283002.9U CN218135038U (en) | 2022-08-29 | 2022-08-29 | Bearing turning aligning clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222283002.9U CN218135038U (en) | 2022-08-29 | 2022-08-29 | Bearing turning aligning clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218135038U true CN218135038U (en) | 2022-12-27 |
Family
ID=84556570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222283002.9U Active CN218135038U (en) | 2022-08-29 | 2022-08-29 | Bearing turning aligning clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218135038U (en) |
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2022
- 2022-08-29 CN CN202222283002.9U patent/CN218135038U/en active Active
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