CN215998754U - Special fixture for machining hub bearing - Google Patents
Special fixture for machining hub bearing Download PDFInfo
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- CN215998754U CN215998754U CN202122651739.7U CN202122651739U CN215998754U CN 215998754 U CN215998754 U CN 215998754U CN 202122651739 U CN202122651739 U CN 202122651739U CN 215998754 U CN215998754 U CN 215998754U
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- hub bearing
- tensioning
- positioning
- supporting
- chuck
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Abstract
The utility model provides a special fixture for hub bearing machining, which belongs to the technical field of automobile accessory machining equipment, and comprises a chuck, a plurality of supporting seats and a plurality of positioning and tensioning claws; the plurality of supporting seats are circumferentially fixed on the operation end face of the chuck and are used for supporting the end face, close to the large-diameter end, of a flange plate of the hub bearing; the plurality of positioning tensioning claws are circumferentially arranged on the working end surface of the chuck and are controlled by a machine tool to move outwards so as to tension the inner side of the large-diameter end of the hub bearing. The special fixture for processing the hub bearing provided by the utility model has simple and reliable structure and convenient loading and unloading; the adjustment and positioning are convenient and flexible, and the machined surface cannot be clamped; the operation is simple, and the clamping efficiency is high.
Description
Technical Field
The utility model belongs to the technical field of auto-parts processing equipment, concretely relates to wheel hub bearing processing special fixture.
Background
The main function of the hub bearing is to bear the weight and provide accurate guide for the rotation of the hub, and the hub bearing is an indispensable part on an automobile. When the wheel hub bearing is machined, the wheel hub bearing needs to be clamped and positioned, and a corresponding clamp is used for clamping.
When the existing clamp clamps the large-diameter end of a hub bearing, a plurality of clamping blocks are arranged, and multiple times of adjustment are needed during clamping, so that the positioning precision and the machining efficiency are influenced.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a wheel hub bearing processing special fixture, the big footpath end that can quick clamping wheel hub bearing, and easy operation has improved machining efficiency.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a wheel hub bearing processing special fixture, includes:
a chuck;
the supporting seats are circumferentially fixed on the operation end face of the chuck and are used for supporting the end face, close to the large-diameter end, of a flange plate of the hub bearing;
the positioning tensioning claws are circumferentially arranged on the working end face of the chuck and are controlled by a machine tool to move outwards so as to tension the inner side of the large-diameter end of the hub bearing.
In a possible implementation manner, the positioning tensioning claw comprises a tensioning end which is provided with a tensioning arc surface matched with the inner side of the large diameter of the hub bearing.
In some embodiments, the number of the positioning and tensioning claws is three, three tensioning ends are matched to form a disc shape, and three tensioning cambered surfaces form a disc side surface.
In a possible implementation manner, the supporting seat comprises a fixing plate and a supporting column which are sequentially and fixedly connected, the fixing plate is fixedly connected with the operation end face of the chuck, and the supporting column is far away from one end of the fixing plate and used for supporting the flange end face of the hub bearing.
In a possible implementation manner, a support ring is arranged between a plurality of the support seats and the flange of the hub bearing.
In a possible implementation manner, a support plate is arranged in the middle of the working end face of the chuck and is used for supporting and positioning the tensioning claws to move.
In the implementation mode, the large-diameter end of the hub bearing is sleeved on the contracted positioning tensioning claw, and the flange plate end face of the hub bearing is placed on the plurality of supporting seats to ensure Z-direction support; after the hub bearing is placed and positioned, the machine tool controls the positioning tensioning claw to move outwards for tensioning, so that the positioning tensioning claw is abutted against the inner side of the large-diameter end of the hub bearing, and the hub bearing is clamped through tensioning.
Compared with the prior art, the special fixture for processing the hub bearing has the advantages of simple and reliable structure and convenient loading and unloading; the adjustment and positioning are convenient and flexible, and the machined surface cannot be clamped; the operation is simple, and the clamping efficiency is high.
Drawings
Fig. 1 is a schematic view of a three-dimensional structure of a special fixture for processing a hub bearing, which is provided by an embodiment of the present invention;
fig. 2 is the embodiment of the utility model provides a hub bearing processing special fixture overlook the schematic structure diagram.
Description of reference numerals:
1. a hub bearing; 2. a chuck; 3. a supporting seat; 31. a fixing plate; 32. a support pillar; 4. positioning a tensioning claw; 41. a tensioning end; 411. tensioning the arc surface; 5. a support ring; 6. and a support plate.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that, need include the ring flange, be located the major diameter end and the path end of ring flange both sides through the wheel hub bearing blank of this application processing, enclose between ring flange and the path end and be equipped with the plum blossom platform, a plurality of recesses have been seted up to ring flange angle such as circumference.
Referring to fig. 1 and fig. 2 together, the special fixture for processing a hub bearing according to the present invention will now be described. The special fixture for processing the hub bearing comprises a chuck 2, a plurality of supporting seats 3 and a plurality of positioning tensioning claws 4; the plurality of supporting seats 3 are circumferentially fixed on the operation end face of the chuck 2 and are used for supporting the end face, close to the large-diameter end, of the flange plate of the hub bearing 1; the plurality of positioning tensioning claws 4 are circumferentially arranged on the working end surface of the chuck 2, and the plurality of positioning tensioning claws 4 are controlled by a machine tool to move outwards to tension the inner side of the large-diameter end of the hub bearing 1.
In the realization mode, the large-diameter end of the hub bearing 1 is sleeved on the contracted positioning tensioning claw 4, and the flange plate end face of the hub bearing 1 is placed on the plurality of supporting seats 3 to ensure the Z-direction support; after the hub bearing 1 is placed and positioned, the machine tool controls the positioning and tensioning claw 4 to move outwards and tension the positioning and tensioning claw, so that the positioning and tensioning claw is abutted against the inner side of the large-diameter end of the hub bearing 1, and the hub bearing 1 is clamped through tensioning.
Compared with the prior art, the special fixture for processing the hub bearing provided by the embodiment has the advantages that the structure is simple and reliable, and the loading and unloading are convenient; the adjustment and positioning are convenient and flexible, and the machined surface cannot be clamped; the operation is simple, and the clamping efficiency is high.
The working process of the special fixture for processing the hub bearing comprises the following steps that firstly, the small-diameter end of a blank of the hub bearing 1 is placed upwards, a worker grasps the outer edge of the blank and horizontally places the blank on the positioning tensioning claw 4, and the end face, close to the large diameter, of the flange plate is in contact with the supporting seat 3 to ensure Z-direction support; and then, pressing a machine tool clamping instruction, moving the chuck 2 outwards, and automatically tensioning the clamping jaws to enable the inner sides of the other large-diameter ends to be attached to each other, so that blank clamping is completed.
In some possible implementations, the positioning and tensioning claw 4 can also adopt a structure as shown in fig. 2. Referring to fig. 2, the positioning tension claw 4 includes a tension end 41, and the tension end 41 is provided with a tension arc 411 matching with the inside of the large diameter of the hub bearing 1.
In this embodiment, through the major diameter end inboard of arcwall face tensioning to fixed whole hub bearing 1 blank. Through setting up the arcwall face, increase and the area of contact of ring flange side to the ring flange is supported in the multi-angle tensioning, and can reduce the damage to big footpath end inboard.
Specifically, the tension end 41 is higher than the main body of the positioning tension claw 4, and the respective tension arc faces 411 are located at positions where the tension ends 41 are away from each other, so as to facilitate tensioning of the inner diameter of the hub bearing 1.
The tensioning cambered surface 411 is convex outwards so as to conveniently position the tensioning claw 4 and tightly tension and fix the hub bearing 1.
In some possible implementations, referring to fig. 2, the number of the positioning and tensioning claws 4 is three, three tensioning ends 41 are matched to form a disc shape, and three tensioning cambered surfaces 411 form the side surfaces of the disc.
In this embodiment, the stable clamping of the inner diameter of the hub bearing 1 can be completed by three positioning and tensioning claws 4. When the positioning tensioning claw 4 is tightened up, for the angle of the maximized tensioning cambered surface, the maximized area is abutted against the inner side of the large diameter of the hub bearing 1, the damage to the hub bearing 1 is reduced, and the angle of the tensioning cambered surface 411 is 120 degrees, namely the side surface of the disc is formed.
Optionally, the tensioning arc surface 411 is parallel to an inner diameter surface of the hub bearing 1, and a disc formed by the three tensioning ends 41 is irregular and circular, so as to further abut against the inner side of the large diameter in a large area, and reduce damage to the hub bearing 1.
In some possible implementations, the supporting seat 3 may be configured as shown in fig. 1. Referring to fig. 1, each support seat 3 includes a fixing plate 31 and a support pillar 32 that are fixedly connected in sequence, the fixing plate 31 is fixedly connected to the working end face of the chuck 2, and one end of the support pillar 32 away from the fixing plate 31 is used for supporting the flange end face of the hub bearing 1.
In this embodiment, the fixing plate 31 is fixed on the chuck 2 and has a cross-sectional area larger than that of the supporting column 32, so that the fixing plate 31 can stably support the supporting column 32.
Specifically, the number of the supporting seats 3 is three, and the three supporting seats are respectively used for supporting the end face, close to the large-diameter side, of the flange of the hub bearing 1.
In some possible implementations, referring to fig. 1 and 2, a support ring 5 is provided between the plurality of support seats 3 and the flange of the hub bearing 1.
In this embodiment, the outside of support ring 5 and a ring flange terminal surface contacts the matching completely, realizes supporting the comprehensive of ring flange, makes to support more stable, and the mode of supporting seat 3 direct support ring flange because ring flange outside circumference is seted up flutedly, can support the condition appearance of shakiness or support slope because of supporting seat 3 top portion is located the recess position, can make like this and in 4 tensioning processes of location tensioning claw, wheel hub bearing 1 is fixed crooked, influences subsequent machining accuracy.
Specifically, the support rings 5 are fixed on the plurality of support seats 3, the support seats 3 are used for supporting the circumferential outer side position of the flange plate, the groove position of the flange plate can be stably supported, and the hub bearing 1 can be prevented from deviating due to the position which cannot be supported by the support seats 3 in the machining process of the machine tool, so that machining is not affected.
In some possible implementations, referring to fig. 2, the working end face of the chuck 2 is provided with a support plate 6 at a middle position, and the support plate 6 is used for supporting and positioning the movement of the tensioning claws 4.
In this embodiment, the supporting plate 6 is fixedly arranged at the middle position of the chuck 2 and is positioned between the positioning and tensioning claw 4 and the chuck 2, so that the positioning and tensioning claw 4 can play a role in supporting and guiding when moving towards the middle or tensioning outwards through the middle position of the chuck 2 and in the machining process, thereby stably positioning the operation of the tensioning claw 4 and improving the clamping efficiency and the clamping quality.
Specifically, the locating tensioning claw 4 is provided with a limiting groove on one side close to the supporting plate 6, the supporting plate 6 is located in the limiting groove enclosed by the locating tensioning claws 4, and therefore inward displacement of the locating tensioning claw 4 can be limited through the side face of the limiting groove, and excessive displacement of the locating tensioning claw 4 is prevented.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a wheel hub bearing processing special fixture which characterized in that includes:
a chuck;
the supporting seats are circumferentially fixed on the operation end face of the chuck and are used for supporting the end face, close to the large-diameter end, of a flange plate of the hub bearing;
the positioning tensioning claws are circumferentially arranged on the working end face of the chuck and are controlled by a machine tool to move outwards so as to tension the inner side of the large-diameter end of the hub bearing.
2. The special fixture for processing the hub bearing as claimed in claim 1, wherein the positioning and tensioning claw comprises a tensioning end, and the tensioning end is provided with a tensioning arc surface matched with the inner side of the major diameter of the hub bearing.
3. The special fixture for processing the hub bearing as claimed in claim 2, wherein the number of the positioning tensioning claws is three, three tensioning ends are matched to form a disc shape, and three tensioning cambered surfaces form a disc side surface.
4. The special fixture for processing the hub bearing as claimed in claim 1, wherein the supporting base comprises a fixing plate and a supporting pillar fixedly connected in sequence, the fixing plate is fixedly connected with the working end face of the chuck, and one end of the supporting pillar far away from the fixing plate is used for supporting the flange end face of the hub bearing.
5. The special fixture for processing the hub bearing as claimed in claim 1, wherein a support ring is disposed between the plurality of support seats and the flange of the hub bearing.
6. The special fixture for processing the hub bearing as claimed in claim 1, wherein a support plate is arranged at the middle position of the working end surface of the chuck, and the support plate is used for supporting and positioning the tensioning claws to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122651739.7U CN215998754U (en) | 2021-11-01 | 2021-11-01 | Special fixture for machining hub bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122651739.7U CN215998754U (en) | 2021-11-01 | 2021-11-01 | Special fixture for machining hub bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215998754U true CN215998754U (en) | 2022-03-11 |
Family
ID=80524809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122651739.7U Active CN215998754U (en) | 2021-11-01 | 2021-11-01 | Special fixture for machining hub bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215998754U (en) |
-
2021
- 2021-11-01 CN CN202122651739.7U patent/CN215998754U/en active Active
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