CN210147812U - Multi-contact floatable electromagnetic coreless fixture support - Google Patents
Multi-contact floatable electromagnetic coreless fixture support Download PDFInfo
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- CN210147812U CN210147812U CN201921031284.5U CN201921031284U CN210147812U CN 210147812 U CN210147812 U CN 210147812U CN 201921031284 U CN201921031284 U CN 201921031284U CN 210147812 U CN210147812 U CN 210147812U
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Abstract
The utility model relates to a multi-contact floatable electromagnetic coreless fixture support. The supporting frame is rotatably fixed on the supporting body, the supporting heads are arranged on the supporting frame in an arc shape, and the supporting heads and the supporting frame are connected in a sliding manner in the diameter direction of the arc shape; the front end of the supporting head is provided with a hard round rod, and the axis of the hard round rod is perpendicular to the axis of the supporting head.
Description
Technical Field
The utility model relates to an electromagnetism centerless fixture supports especially discloses an electromagnetism centerless fixture support that multicontact can float.
Background
In the bearing industry, an electromagnetic centerless fixture is mostly used for supporting during grinding of a ferrule. Radial support of the ferrule is typically used to achieve radial positioning. The usual supports generally have two configurations: a single-pivot fixed bearing and a double-pivot V-shaped floating bearing.
The supporting head only has one hard alloy block to contact with the ferrule. The V-shaped floating support with double supporting points is characterized in that each supporting head is provided with two hard alloy blocks which form V-shaped distribution and are respectively contacted with the ferrule.
The supporting head only has one hard alloy block to contact with the ferrule. The advantages are simple structure, and the defects are that the forming condition of edge circle in centerless grinding can not be eliminated, the duplication of the waviness and roundness of the surface of the ferrule on the processed surface can not be eliminated, and the processing quality of the ferrule is difficult to improve.
The V-shaped floating support with double supporting points has two hard alloy blocks contacting the ferrule. Compared with a single-point support, the machining quality of the V-shaped floating support is improved. However, the improvement effect is not satisfactory because the angle of containment of the V-shaped bearing is too small. And the machining range of the V-shaped support is small, and the requirement of the machining range of the machine tool can be met by a plurality of sets of supports.
Whether single point bearing or V-shaped floating bearing, there are two problems: firstly, the contact surface of the ferrule and the supporting head is too small, the pressure intensity is too large, the surface of the ferrule is easily scratched in the bearing processing, particularly, the ferrule of a medium-sized or heavy-duty bearing is heavy, the generated pressure is larger, the bearing scratch can be generated by carelessness, and even the bearing scratch cracks can cause the ferrule to be scrapped. Secondly, because the contact surface of the ferrule and the supporting head is too small and the pressure intensity is too large, the hard alloy block is easy to wear, the radial support of the ferrule is unstable, and the processing quality is affected.
Disclosure of Invention
An object of the utility model is to overcome the defect that exists among the prior art, provide one kind can effectually avoid supporting head fish tail lasso surface, the contained angle that forms is big, eliminate the formation condition of arris circle in the centerless grinding, eliminate lasso surface waviness degree, circularity at the duplication by machined surface, improve the electromagnetic centerless fixture supporting that the multiconductor of lasso grinding quality can float.
The utility model discloses a realize like this: the multi-contact floatable electromagnetic coreless fixture support comprises a support body, a support frame and a plurality of support heads, wherein the support frame is rotatably fixed on the support body, the support heads are arranged on the support frame in an arc shape, and the support heads and the support frame are connected in a sliding manner in the diameter direction of the arc shape; the front end of the supporting head is provided with a hard round rod, and the axis of the hard round rod is perpendicular to the axis of the supporting head.
The supporting body is provided with a first long hole used for being connected with the base, and the axis of the first long hole is located in the diameter direction of the circular arc.
The base is provided with an arc-shaped positioning groove, and the support body penetrates through the first long hole through a first screw to be connected with the arc-shaped positioning groove.
The supporting head is provided with a second long hole, and the supporting head penetrates through the second long hole through a second screw to be connected with the supporting frame to form the slidable connection.
The supporting frame is provided with a plurality of sliding grooves corresponding to the supporting frame, the axis of each sliding groove is located in the diameter direction of the circular arc, and the supporting frame is connected with the sliding grooves to form the slidable connection.
The number of the supporting heads is 3-9.
The hard round rod is a hard alloy round rod.
The supporting frame is connected with the supporting body through pins.
The front end of the supporting head is provided with a V-shaped groove, and the hard round rod is welded in the V-shaped groove.
The utility model has the advantages that: the utility model discloses a be equipped with a plurality of supporting heads on the single supporting rack, the pressure that every supporting head bore reduces, and pressure also reduces, can avoid supporting head fish tail lasso surface effectively. The structure of the invention is particularly suitable for processing the ring of a large and heavy bearing.
As the plurality of supporting heads bear the centrifugal force of the ferrule, the pressure borne by a single supporting head is reduced, and the abrasion speed of the hard alloy round rod is greatly reduced. Compared with the support of a common structure, the support head of the structure can ensure the support stability for a longer time.
The front ends of the plurality of supporting heads are contacted with the ferrule to form a large supporting containing angle, so that the forming condition of a arris circle in centerless grinding is eliminated, the duplication of the waviness and roundness of the surface of the ferrule on the surface to be processed is eliminated, and the grinding quality of the ferrule is improved greatly.
By adjusting the support head, a large processing range can be formed, the number of supports of the machine tool is reduced, and the cost is reduced.
The supporting frame is connected with the supporting body through pins. The supporting frame can rotate freely within a certain angle to form a floating support. When the support body and the ferrule are slightly misaligned, the support frame can automatically align the circle, and the processing quality is not affected. The processing requirement of the base is reduced, and the cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the present invention in use.
Wherein: 1. a support body; 2. a support frame; 3. a support head; 4. a pin; 5. a second long hole; 6. a second screw; 7. a hard round bar; 8. a V-shaped groove; 9. a base; 10. a first long hole; 11. a circular arc-shaped positioning groove; 12. a first screw;
20. and (4) bearing rings.
Detailed Description
According to fig. 1 and 2, the present invention comprises a support body 1, a support frame 2 and a plurality of support heads 3, wherein the number of the support heads 3 is preferably 3-9. The supporting frame 3 is rotatably connected with the supporting body 1 through a pin 4, and the supporting body 1 can swing flexibly to form a floating support.
The front end of the supporting head 3 is provided with a hard round rod 7, and the hard round rod 7 is preferably a hard alloy round rod. The axis of the hard round rod 7 is perpendicular to the axis of the supporting head 3. The front end of the supporting head 3 is provided with a V-shaped groove 8, and the hard round rod 7 is welded in the V-shaped groove 8. The outer circumferential surface of the cemented carbide round bar is in contact with the bearing ring 20.
The plurality of supporting heads 3 are arranged on the supporting frame 2 in an arc shape, and the supporting heads 3 are connected with the supporting frame 2 in a sliding manner in the diameter direction of the arc shape; the connecting structure for sliding connection is preferably as follows: the supporting head 3 is provided with a second long hole 5, and the supporting head 3 penetrates through the second long hole 5 through a second screw 6 to be connected with the supporting frame 2 to form the slidable connection.
Through the connecting structure in sliding connection, the expansion and contraction amount of each supporting head 3 can be adjusted according to the processed bearing ring 20 with different diameters, so that the hard round rods 7 at the front ends of all the supporting heads 3 are in surface contact with the bearing ring 20. And after the adjustment is finished, the second screw is screwed tightly, so that the bearing head is connected and fastened with the bearing frame 2. Thus, the centrifugal force generated when the bearing ring 20 rotates is uniformly distributed on each supporting head 3, and the pressure between the hard round rod 7 at the front end of the supporting head 3 and the contact surface of the bearing ring 20 is dispersed, so that the pressure is reduced, and the surface of the bearing ring 20 is not easily scratched. The bearing containing angle b formed by a plurality of bearing heads 3 is large, and the grinding quality of the bearing ring 20 can be better improved.
The supporting body 1 is provided with a first long hole 10 for connecting the base 9, and the axis of the first long hole 10 is located in the diameter direction of the circular arc. The base 9 is provided with an arc-shaped positioning groove 11, and the support body 1 is connected with the arc-shaped positioning groove 11 through a first screw 12 passing through the first long hole 10.
According to fig. 2, in actual use, there are 2 supports of the present invention on the base 9. The support body 1 and the base 9 are fastened by first screws 12. After the first screw 12 is loosened, the support body 1 can move a certain angle on the surface of the base 9 around the center of the processed bearing ring 20, so as to adjust the supporting included angle a between the 2 supports; after the adjustment, turn round tight screw, the support is connected the fastening with base 9, 1 the utility model discloses form the support between the supporting head 3 of support and contain angle b.
The circular arc and the circular arc are arcs concentric with the center of the processed bearing ring 20. The utility model discloses a form the bearing ring 20's diameter direction's bearing power, make bearing ring 20 can be stable rotatory.
The first embodiment is as follows: the differences from the above are: the support head 3 and the support frame 2 are connected in a sliding manner in the diameter direction of the circular arc: the supporting frame 2 is provided with a plurality of sliding grooves corresponding to the supporting heads 3, the axes of the sliding grooves are located in the diameter direction of the circular arc, the supporting heads 3 are connected with the sliding grooves to form the slidable connection, and the rest of the structure is as above.
Claims (9)
1. The utility model provides a multiconductor electromagnetic centerless fixture support that can float which characterized in that: the supporting frame is rotatably fixed on the supporting body, the supporting heads are arranged on the supporting frame in an arc shape, and the supporting heads and the supporting frame are connected in a sliding manner in the diameter direction of the arc shape; the front end of the supporting head is provided with a hard round rod, and the axis of the hard round rod is perpendicular to the axis of the supporting head.
2. The multi-contact floatable electromagnetic coreless chuck support of claim 1, further comprising: the supporting body is provided with a first long hole used for being connected with the base, and the axis of the first long hole is located in the diameter direction of the circular arc.
3. The multi-contact floatable electromagnetic coreless chuck support of claim 2, wherein: the base is provided with an arc-shaped positioning groove, and the support body penetrates through the first long hole through a first screw to be connected with the arc-shaped positioning groove.
4. The multi-contact floatable electromagnetic coreless chuck support of claim 1, further comprising: the supporting head is provided with a second long hole, and the supporting head penetrates through the second long hole through a second screw to be connected with the supporting frame to form the slidable connection.
5. The multi-contact floatable electromagnetic coreless chuck support of claim 1, further comprising: the supporting frame is provided with a plurality of sliding grooves corresponding to the supporting frame, the axis of each sliding groove is located in the diameter direction of the circular arc, and the supporting frame is connected with the sliding grooves to form the slidable connection.
6. The multi-contact floatable electromagnetic coreless chuck support of claim 1, further comprising: the number of the supporting heads is 3-9.
7. The multi-contact floatable electromagnetic coreless chuck support of claim 1, further comprising: the hard round rod is a hard alloy round rod.
8. The multi-contact floatable electromagnetic coreless chuck support of claim 1, further comprising: the supporting frame is connected with the supporting body through pins.
9. The multi-contact floatable electromagnetic coreless chuck support of claim 1, further comprising: the front end of the supporting head is provided with a V-shaped groove, and the hard round rod is welded in the V-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921031284.5U CN210147812U (en) | 2019-07-04 | 2019-07-04 | Multi-contact floatable electromagnetic coreless fixture support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921031284.5U CN210147812U (en) | 2019-07-04 | 2019-07-04 | Multi-contact floatable electromagnetic coreless fixture support |
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| Publication Number | Publication Date |
|---|---|
| CN210147812U true CN210147812U (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921031284.5U Active CN210147812U (en) | 2019-07-04 | 2019-07-04 | Multi-contact floatable electromagnetic coreless fixture support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153883A (en) * | 2019-07-04 | 2019-08-23 | 上海特安一凯轴承有限公司 | A kind of relocatable electric magnetic no-core fixture bearing of multiconductor |
-
2019
- 2019-07-04 CN CN201921031284.5U patent/CN210147812U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153883A (en) * | 2019-07-04 | 2019-08-23 | 上海特安一凯轴承有限公司 | A kind of relocatable electric magnetic no-core fixture bearing of multiconductor |
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