CN216179630U - Bearing machining clamp - Google Patents
Bearing machining clamp Download PDFInfo
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- CN216179630U CN216179630U CN202122756673.8U CN202122756673U CN216179630U CN 216179630 U CN216179630 U CN 216179630U CN 202122756673 U CN202122756673 U CN 202122756673U CN 216179630 U CN216179630 U CN 216179630U
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- Prior art keywords
- clamping
- arc
- bearing
- bearing outer
- outer ring
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- 238000003754 machining Methods 0.000 title claims abstract description 22
- 238000003825 pressing Methods 0.000 claims description 24
- 230000007246 mechanism Effects 0.000 claims description 19
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 238000007373 indentation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a bearing machining clamp, and relates to the technical field of clamps, wherein a clamping assembly comprises an arc-shaped plate, the arc-shaped plate comprises a rigid clamping block positioned in the middle and flexible clamping strips symmetrically connected to two sides of the rigid clamping block in the circumferential direction, and the inner surface of the rigid clamping block and the inner surface of the flexible clamping strips are positioned in the same plane; therefore, the flexible clamping strips on the two sides of the rigid clamping block can be attached to the surface of the bearing outer ring under the action of the auxiliary pressure rod, so that the whole arc-shaped surface of the arc-shaped plate is attached to the bearing outer ring, the bearing outer ring is clamped by utilizing the arc-shaped surface on the premise of clamping the bearing outer rings with different diameters, and the clamping and positioning effects on the bearing outer ring are obviously improved by increasing the action area on the bearing outer ring.
Description
Technical Field
The utility model relates to the technical field of clamps, in particular to a bearing machining clamp.
Background
The bearing is a component for fixing and reducing the load friction coefficient in the mechanical transmission process. The bearing can be used to reduce the friction coefficient during power transmission and keep the shaft center position fixed when other parts move relative to each other on the shaft. Therefore, the bearing is a very important and commonly used component in the modern mechanical equipment. Its main function is to support the mechanical rotating body to reduce the friction coefficient of mechanical load of equipment in the transmission process.
Currently, during the bearing machining process, the surface of the bearing is usually required to be polished smooth. Before grinding, the bearing needs to be fixed, and a clamp for fixing the bearing is needed. The existing fixture is generally used for a certain fixed-size bearing, a mold needs to be replaced when different bearings are clamped, and the adaptability is poor, for example, the fixture is an invention patent with the application number of '201911115474. X' and the name of 'fixture for bearing machining' and a utility model patent with the application number of '202020432124.8' and the name of 'fixture for bearing machining'.
The utility model has the application number of '201920848090.8', and the name of 'a clamp for bearing processing', and discloses a clamp for clamping bearings with different diameters by utilizing a V-shaped clamping plate; however, the four-point clamping of the bearing is only point contact, so that the clamping effect of the bearing is poor, and the bearing needs to be applied with larger pressure when being clamped by adopting the arrangement mode, and the action area is smaller, so that larger pressure can be generated at the clamping position, and the indentation is easily generated on the surface of the bearing.
Therefore, there is a need in the art to develop a new bearing machining fixture.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a bearing machining clamp, which is used for solving the problems in the prior art, and can clamp a bearing outer ring by utilizing a cambered surface on the premise of clamping the bearing outer rings with different diameters, so that the clamping and positioning effects on the bearing outer ring are obviously improved, and the indentation on the surface of the bearing outer ring caused by multi-point clamping is avoided.
In order to achieve the purpose, the utility model provides the following scheme: the utility model provides a bearing machining clamp which comprises a base and a plurality of clamping assemblies arranged on the base, wherein each clamping assembly comprises an arc-shaped plate which is used for pressing a bearing and can be bent; the clamping assembly further comprises a main clamping mechanism and an auxiliary clamping mechanism thereof, a telescopic rod fixedly connected with the rigid clamping block is arranged in the main clamping mechanism, an auxiliary pressure rod pressing the flexible clamping strip on the outer surface of the bearing when the auxiliary clamping mechanism extends is arranged in the auxiliary clamping mechanism, and the auxiliary pressure rod is symmetrically distributed on two sides of the telescopic rod.
Preferably, the rigid clamping block is arc-shaped, and the arc length of the rigid clamping block accounts for 1/8-1/10 of the total arc length of the arc-shaped plate.
Preferably, the inner surface of the rigid clamping block is provided with a non-slip mat.
Preferably, a strip-shaped pressing block used for pressing the flexible clamping strip is fixed at the end part of the auxiliary pressure rod, and the length direction of the strip-shaped pressing block is parallel to the axial direction of the arc-shaped plate.
Preferably, the length of the strip-shaped pressing block is equal to the axial width of the arc-shaped plate.
Preferably, the telescopic rod and the auxiliary pressure rod are arranged at the same height, and an included angle is formed between the telescopic rod and the auxiliary pressure rod.
Preferably, a vertical plate is arranged on the base, and a plurality of guide holes for the telescopic rod and the auxiliary pressure rod to pass through are formed in the vertical plate.
Preferably, the clamping assemblies are symmetrically provided with two groups, and the number of the auxiliary pressure rods in each group of the clamping assemblies is two.
Compared with the prior art, the utility model has the following technical effects:
1. the rigid clamping block can play a role in clamping and fixing the bearing outer ring, prevent the bearing outer ring from vibrating and skewing in the processing process, and clamp the bearing outer rings with different diameters by utilizing multiple points; the clamping strips on the two sides of the rigid clamping block are flexible, can be bent inwards under the pressure action of the auxiliary pressure rod and gradually act on the outer ring of the bearing, and are also suitable for bearings with different diameters; the arc-shaped plate has strong adaptability to bearing outer rings with different sizes, is convenient for replacing different bearing outer rings for clamping, and can improve the processing efficiency;
2. according to the utility model, the flexible clamping strips on two sides of the rigid clamping block can be attached to the surface of the bearing outer ring under the action of the auxiliary pressure rod, so that the whole arc-shaped surface of the arc-shaped plate is attached to the bearing outer ring, the bearing outer ring is clamped by utilizing the arc-shaped surface on the premise of clamping the bearing outer rings with different diameters, and the clamping and positioning effects on the bearing outer ring are obviously improved by increasing the action area on the bearing outer ring; compared with the mode of fastening the bearing outer ring only by multiple points, the cambered surface clamping realized by auxiliary clamping through the flexible clamping strips can reduce the fixed pressure of the rigid clamping block on the bearing outer ring, and avoid the indentation or deformation caused by the overlarge pressure of a single point on the bearing outer ring.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view of a machining jig according to the present invention;
FIG. 2 is a schematic structural view of an arc plate;
wherein, 1, a base; 2. an arc-shaped plate; 3. a rigid clamping block; 4. a flexible clamping strip; 5. a telescopic rod; 6. an auxiliary pressure lever; 7. a strip-shaped pressing block; 8. a vertical plate; 9. and a hydraulic cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model aims to provide a bearing machining clamp, which is used for solving the problems in the prior art, and can clamp a bearing outer ring by utilizing a cambered surface on the premise of clamping the bearing outer rings with different diameters, so that the clamping and positioning effects on the bearing outer ring are obviously improved, and the indentation on the surface of the bearing outer ring caused by multi-point clamping is avoided.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 2, the present embodiment provides a bearing machining fixture, which includes a base 1 and a plurality of clamping assemblies disposed on the base 1, where each clamping assembly includes an arc-shaped plate 2 used for pressing a bearing and being bendable, and in a circumferential direction, each arc-shaped plate 2 includes a rigid clamping block 3 located in a middle portion and flexible clamping strips 4 symmetrically connected to two sides of the rigid clamping block 3, and an inner surface of the rigid clamping block 3 and an inner surface of each flexible clamping strip 4 are located in a same arc plane; the clamping assembly further comprises a main clamping mechanism and an auxiliary clamping mechanism thereof, a telescopic rod 5 fixedly connected with the rigid clamping block is arranged in the main clamping mechanism, an auxiliary pressure rod 6 for pressing the flexible clamping strip 4 on the outer surface of the bearing during extension is arranged in the auxiliary clamping mechanism, and the auxiliary pressure rod 6 is symmetrically distributed on two sides of the telescopic rod 5.
In the embodiment, two groups of clamping assemblies are symmetrically arranged and are respectively arranged on two sides of the bearing outer ring, and the number of the auxiliary pressure rods 6 in each group of clamping assemblies is two; when the clamping device is used, the bearing outer ring is placed on the base 1 and in the central position area of the arc-shaped plates 2, then the telescopic rods 5 in the main clamping mechanisms act simultaneously to press the rigid clamping blocks 3 against the bearing outer ring, after the rigid clamping blocks 3 are attached and clamped with the surface of the bearing outer ring, the auxiliary pressure rods 6 in the auxiliary clamping mechanisms act to press the flexible clamping strips 4 against the bearing outer ring, and therefore clamping and positioning of the bearing outer ring are achieved.
It should be noted that the rigid clamping block 3 in this embodiment can clamp and fix the bearing outer ring, prevent the bearing outer ring from vibrating and skewing in the machining process, and clamp the bearing outer rings with different diameters by using multiple points, so that the adaptability to the bearing outer ring is strong; the clamping strips on the two sides of the rigid clamping block 3 are flexible and can be bent inwards under the pressure action of the auxiliary pressure rod 6 and gradually act on the bearing outer ring, so that the size of the bearing outer ring can be changed according to different diameters, and the clamping device is also suitable for bearings with different diameters; therefore, the arc-shaped plate 2 in the embodiment has stronger adaptability to bearing outer rings with different sizes, is convenient for replacing different bearing outer rings for clamping, and can improve the processing efficiency.
In addition, in the embodiment, the flexible clamping strips 4 on both sides of the rigid clamping block 3 can also be attached to the surface of the bearing outer ring under the action of the auxiliary pressure lever 6, so that the whole arc-shaped surface of the arc-shaped plate 2 is attached to the bearing outer ring, the bearing outer ring can be clamped by utilizing the arc surface on the premise of clamping the bearing outer rings with different diameters, the action area of the bearing outer ring is increased, and the clamping and positioning action of the bearing outer ring is obviously improved; simultaneously for only relying on the mode that the multiple spot fastens the bearing inner race, utilize flexible clamp strip 4 to carry out the cambered surface clamping that the auxiliary clamp is tight and realize can reduce the fixed pressure of rigidity clamp splice 3 to the bearing inner race, avoid the indentation or the deformation that the pressure of single-point to the bearing inner race is too big to lead to the bearing inner race.
Specifically, in this embodiment, the flexible clamping strips 4 may be bonded to both sides of the rigid clamping block, or may be integrally formed with the rigid clamping block 3 in an arc-shaped mold, and the arc-shaped plate 2 may be a structure with a thick middle and thin sides, or may be a structure with equal thickness; and the axial width direction is 1/3-2/3 of the thickness of the bearing outer ring. It will also be understood by those skilled in the art that the curved plate 2 of the present embodiment can be adapted to bearing outer races of different diameters by virtue of the flexibility of the flexible clamping strips 4 disposed on both sides, where the "different diameters" are within a certain range and cannot be adapted to bearing outer races of all diameters. Even so, still can not influence this embodiment and have strong adaptability to the bearing inner race of different diameters, be convenient for carry out this technological effect of clamping to different bearing inner races.
It should be noted that, in order to facilitate the flexible clamping strip 4 to clamp the bearing outer rings with different diameters, a large gap is prevented from being generated between the surface of the connecting position between the flexible clamping strip 4 and the rigid fixing block and the surface of the bearing outer ring after clamping, in this embodiment, the rigid clamping block 3 occupies a small size of the arc-shaped plate 2, the arc length is 1/8-1/10 of the total arc length of the arc-shaped plate 2, the central angle corresponding to the arc length is smaller, the arc radius is larger, thereby being tangent with the bearing outer ring with the diameter smaller than the arc radius of the bearing outer ring, avoiding the radius of the bearing outer ring larger than the arc radius of the arc-shaped rigid clamping block 3 and leading the two end points of the rigid clamping block 3 to act on the surface of the bearing outer ring, the arc-shaped surface of the rigid clamping block 3 does not act on the surface of the bearing outer ring, and finally the situation that the two end points of the rigid clamping block 3 apply excessive force to the bearing outer ring to cause indentation occurs.
In order to ensure that the arc-shaped plate 2 and the bearing outer ring have larger friction coefficient and prevent the bearing outer ring from rotating with the arc-shaped plate 2 in the processing process, the inner surfaces of the rigid clamping block 3 and the flexible clamping strip 4 are provided with anti-skid pads; the thickness setting and material selection of the protective pad are well known to those skilled in the art, and this embodiment is not limited thereto.
In order to properly increase the pressing area of the auxiliary pressure lever 6 on the flexible clamping strip 4, reduce the pressure of the end part of the auxiliary pressure lever 6 on the flexible clamping strip 4 and ensure the pressing effect of the flexible clamping strip 4 on the bearing outer ring, in the embodiment, the end part of the auxiliary pressure lever 6 is fixed with a strip-shaped pressing block 7 for pressing the flexible clamping strip 4, the length direction of the strip-shaped pressing block 7 is parallel to the axial direction of the arc-shaped plate 2, and the matching surface of the strip-shaped pressing block 7 and the flexible clamping strip 4 can be an arc-shaped structure with a larger arc radius or a plane structure; specifically, the length of bar briquetting 7 equals with the axial width of arc 2 to this embodiment can also avoid the bearing inner race to rock in epaxial production when utilizing the radial effect that compresses tightly of bar briquetting 7 increase, is favorable to guaranteeing the stability in the middle of the bearing inner race course of working.
Furthermore, in the present embodiment, the telescopic rod 5 and the auxiliary pressure rod 6 are both disposed at the same height, and an included angle is formed between the telescopic rod 5 and the auxiliary pressure rod 6; because the flexible clamping strips 4 can be bent, when bearing outer rings with different diameters are clamped, the action positions of the auxiliary pressure rods 6 on the flexible clamping strips 4 are different, and the included angle is designed to ensure that the auxiliary pressure rods 6 are close to and perpendicular to the surface of the bearing outer ring after the strip-shaped clamping strips clamp the bearing outer ring as much as possible, so that the clamping effect on the bearing outer ring is ensured, namely the auxiliary pressure rods 6 point to the circle center of the bearing outer ring suitable for the arc-shaped plate 2; preferably, the auxiliary strut 6 acts on the middle of the flexible clamping strip 4.
In order to guide the telescopic rod 5 and the auxiliary pressing rod 6, a vertical plate 8 is arranged on the base 1 in the embodiment, a plurality of guide holes for the telescopic rod 5 and the auxiliary pressing rod 6 to pass through are formed in the vertical plate 8, and the vertical plate 8 is also arranged to be of an arc-shaped structure in order to match an included angle between the telescopic rod 5 and the auxiliary pressing rod 6.
In the embodiment, the power element in the main clamping mechanism is selected as a hydraulic cylinder 9, the telescopic rod 5 is connected with a piston rod of the hydraulic cylinder 9, and the telescopic rod 5 is provided with a pressure sensor to monitor the pressure on the outer ring of the bearing and prevent the outer ring of the bearing from deforming due to overlarge pressure; the power element in the auxiliary clamping mechanism can be a hydraulic cylinder 9, and can also be other power mechanisms.
The adaptation according to the actual needs is within the scope of the utility model.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. A bearing machining clamp is characterized by comprising a base and a plurality of clamping assemblies arranged on the base, wherein each clamping assembly comprises an arc-shaped plate which is used for pressing a bearing and can be bent, each arc-shaped plate comprises a rigid clamping block positioned in the middle and flexible clamping strips symmetrically connected to two sides of the rigid clamping block in the circumferential direction, and the inner surfaces of the rigid clamping blocks and the inner surfaces of the flexible clamping strips are positioned in the same plane; the clamping assembly further comprises a main clamping mechanism and an auxiliary clamping mechanism thereof, a telescopic rod fixedly connected with the rigid clamping block is arranged in the main clamping mechanism, an auxiliary pressure rod pressing the flexible clamping strip on the outer surface of the bearing when the auxiliary clamping mechanism extends is arranged in the auxiliary clamping mechanism, and the auxiliary pressure rod is symmetrically distributed on two sides of the telescopic rod.
2. The bearing machining fixture of claim 1, wherein the rigid clamping block has an arc length 1/8-1/10 of the total arc length of the arcuate plate.
3. The bearing machining fixture of claim 2, wherein the inner surfaces of the rigid clamping blocks and the flexible clamping strip are provided with anti-slip pads.
4. The bearing machining clamp according to any one of claims 1 to 3, wherein a strip-shaped pressing block for pressing the flexible clamping strip is fixed to an end of the auxiliary pressure lever, and the length direction of the strip-shaped pressing block is parallel to the axial direction of the arc-shaped plate.
5. The bearing machining fixture of claim 4, wherein the length of the strip-shaped pressing block is equal to the axial width of the arc-shaped plate.
6. The bearing machining clamp according to claim 4, wherein the telescopic rod and the auxiliary pressure rod are arranged at the same height, and an included angle is formed between the telescopic rod and the auxiliary pressure rod.
7. The bearing machining clamp according to claim 1, wherein a vertical plate is disposed on the base, and a plurality of guide holes for the telescopic rod and the auxiliary compression rod to pass through are formed in the vertical plate.
8. The bearing machining clamp according to claim 1, wherein the clamping assemblies are symmetrically arranged in two groups, and the number of the auxiliary pressure rods in each group of the clamping assemblies is two.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021210984708 | 2021-05-21 | ||
| CN202121098470 | 2021-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216179630U true CN216179630U (en) | 2022-04-05 |
Family
ID=80909590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122756673.8U Active CN216179630U (en) | 2021-05-21 | 2021-11-11 | Bearing machining clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216179630U (en) |
-
2021
- 2021-11-11 CN CN202122756673.8U patent/CN216179630U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240312 Address after: Room 100, Building zr02, Pandong Village, Panzhuang Town, Linqing City, Liaocheng City, Shandong Province, 252600 Patentee after: Linqing Zhongrui Machinery Technology Co.,Ltd. Country or region after: China Address before: 252600 56 Xinkai street, Panzhuang Industrial Park, Linqing City, Liaocheng City, Shandong Province Patentee before: LIAOCHENG ZHONGRUI BEARING CO.,LTD. Country or region before: China |
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| TR01 | Transfer of patent right |