CN220515962U - Bearing stop ring press-fitting device - Google Patents
Bearing stop ring press-fitting device Download PDFInfo
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- CN220515962U CN220515962U CN202321164187.XU CN202321164187U CN220515962U CN 220515962 U CN220515962 U CN 220515962U CN 202321164187 U CN202321164187 U CN 202321164187U CN 220515962 U CN220515962 U CN 220515962U
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- positioning
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- bearing
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- 238000001125 extrusion Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model relates to a bearing stop ring press-fitting device, which comprises a positioning guide tool and an extrusion tool which are matched with each other; the positioning guide tool comprises a guide round table, a positioning cylinder and a positioning ring, wherein the positioning cylinder is coaxially connected to the top surface of the guide round table, and the positioning ring is coaxially connected to the bottom surface of the guide round table; a cylindrical accommodating hole and a positioning hole are formed in the extrusion tool body, the positioning hole is coaxially connected above the accommodating hole, and the inner diameter of the positioning hole is smaller than that of the accommodating hole; the positioning cylinder is in clearance fit with the positioning hole, and the accommodating hole is in clearance fit with the positioning ring; the height of locating hole is greater than the height of location cylinder, and the height of holding hole = the height of direction round platform + the height of holding ring. When the bearing stop ring is used for press fitting, the contact between the inner diameter surface of the stop ring and the outer diameter surface of the bearing is avoided, the working efficiency and the appearance quality of products are greatly improved, and the bearing stop ring press fitting device has the characteristic of simple structure.
Description
Technical Field
The utility model relates to the technical field of bearing assembly devices, in particular to a bearing stop ring press-fitting device.
Background
The stop ring with the stop ring bearing is used for axially fixing the bearing outer ring, can limit the creep of the bearing outer ring in the bearing chamber, reduces the abrasion of the surface of the bearing outer ring and the bearing chamber, greatly prolongs the service life of the bearing, and is widely applied to production and manufacture. While there has been no good solution for the installation of the stop ring with the stop ring bearing.
Patent CN215510855U describes a device for installing a bearing stop ring in a 'bearing stop ring assembly device', and the structure of the device comprises an upper die provided with an annular groove and a positioning hole, and a trapezoid-shaped lower die sleeved with the stop ring and provided with a bearing inner hole positioning shaft, wherein the upper die pushes the stop ring to move downwards to the outer circle surface of a bearing along the trapezoid surface of the lower die under the action of hydraulic pressure, and the stop ring is assembled into a stop groove of the bearing along the outer circle surface, so that the installation of the stop ring is completed. But this approach has major drawbacks: in the assembly process, though the stop ring can be pressed into the stop groove conveniently and rapidly, when the stop ring is separated from the trapezoid surface of the lower die under the action of the upper die, the stop ring directly contacts the outer circle of the bearing outer ring, and then scratches are generated on the outer circle between the stop groove and the end face of the bearing, so that the appearance of a product is affected.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides the bearing stop ring press-fitting device which has a simple structure, is convenient and quick in press-fitting process and can effectively avoid the outer circle of a bearing from being scratched.
According to the technical scheme provided by the utility model, the bearing stop ring press-fitting device comprises a positioning guide tool and an extrusion tool which are matched with each other;
the positioning guide tool comprises a guide round table, a positioning cylinder and a positioning ring, wherein the positioning cylinder is coaxially connected to the top surface of the guide round table, the positioning ring is coaxially connected to the bottom surface of the guide round table, and the outer diameter of the positioning ring is equal to the diameter of the bottom surface of the guide round table;
the extrusion tooling comprises an extrusion tooling body, wherein a cylindrical accommodating hole and a positioning hole are formed in the extrusion tooling body, the positioning hole is coaxially connected above the accommodating hole, and the inner diameter of the positioning hole is smaller than that of the accommodating hole;
the positioning guide tool is inserted in the extrusion tool, the diameter phi 4 of the positioning cylinder is smaller than the inner diameter phi 3 of the positioning hole, the positioning cylinder is in clearance fit with the positioning hole, the inner diameter phi 2 of the accommodating hole is larger than the outer diameter of the positioning ring, the outer diameter of the positioning ring = the inner diameter phi 1 of the positioning ring + the thickness T1 of the positioning ring, and the accommodating hole is in clearance fit with the positioning ring;
the height H5 of the positioning hole is greater than the height H3 of the positioning cylinder, the height H6=H2+H2 of the accommodating hole, H1 is the height of the guide circular table, and H2 is the height of the positioning ring.
Preferably, the inner diameter Φ3=Φ4+0.1-0.2 mm of the positioning hole, Φ4 is the diameter of the positioning cylinder.
Preferably, the inner diameter Φ2=Φ1+2t1+0.1 to 0.2mm of the accommodating hole, Φ1 is the inner diameter of the positioning ring, and T1 is the thickness of the positioning ring.
Preferably, the inclination angle β1 of the guiding circular table is 8-12 °.
Preferably, the thickness t1=0.9-1.1 mm of the positioning ring.
When the bearing stop ring is used for press fitting, the contact between the inner diameter surface of the stop ring and the outer diameter surface of the bearing is avoided, the working efficiency and the appearance quality of products are greatly improved, and the bearing stop ring press fitting device has the characteristic of simple structure.
Drawings
Fig. 1 is a schematic view of the structure of the present utility model at the beginning of use.
Fig. 2 is a schematic view of the structure of the present utility model at the end of use.
Fig. 3 is a schematic structural view of the extrusion tooling in the present utility model.
Fig. 4 is a schematic structural diagram of a positioning guide tool in the present utility model.
Fig. 5 is a schematic view of the structure of the bearing to which the stop ring is to be attached.
Detailed Description
The utility model will be further illustrated with reference to specific examples.
The bearing stop ring press-fitting device comprises a positioning guide tool 2 and an extrusion tool 4 which are matched with each other;
the positioning and guiding tool 2 comprises a guiding circular table 21, a positioning cylinder 22 and a positioning ring 23, wherein the positioning cylinder 22 is coaxially connected to the top surface of the guiding circular table 21, the positioning ring 23 is coaxially connected to the bottom surface of the guiding circular table 21, and the outer diameter of the positioning ring 23 is equal to the diameter of the bottom surface of the guiding circular table 21;
the extrusion tooling 4 comprises an extrusion tooling body, wherein a cylindrical accommodating hole 41 and a positioning hole 42 are arranged in the extrusion tooling body, the positioning hole 42 is coaxially connected above the accommodating hole 41, and the inner diameter of the positioning hole 42 is smaller than the inner diameter of the accommodating hole 41;
the positioning guide tool 2 is inserted in the extrusion tool 4, the diameter phi 4 of the positioning cylinder 22 is smaller than the inner diameter phi 3 of the positioning hole 42, the positioning cylinder 22 is in clearance fit with the positioning hole 42, the inner diameter phi 2 of the accommodating hole 41 is larger than the outer diameter of the positioning ring 23, the outer diameter of the positioning ring 23 = the inner diameter phi 1 of the positioning ring 23 + the thickness T1 of the positioning ring 23, and the accommodating hole 41 is in clearance fit with the positioning ring 23;
the height H5 of the positioning hole 42 is greater than the height H3 of the positioning cylinder 22, so as to ensure that the press-fitting force always acts on the stop ring 3 in the whole press-fitting process;
the height h6=h1+h2 of the accommodating hole 41, H1 is the height of the guiding circular table 21, and H2 is the height of the positioning ring 23, so that the stroke of the extrusion tooling 4 can be limited, and the stop ring 3 is prevented from being deformed due to stress after being pressed in place.
The inner diameter Φ3=Φ4+0.1 to 0.2mm of the positioning hole 42, Φ4 is the diameter of the positioning cylinder 22, so as to ensure that the positioning guide tool 2 has a good guiding function.
The inner diameter Φ2=Φ1+2t1+0.1 to 0.2mm of the receiving hole 41, Φ1 is the inner diameter of the positioning ring 23, and T1 is the thickness of the positioning ring 23, so as to increase the stress area of the stop moving ring 3 during the press-fitting process as much as possible.
The inclination angle beta 1 of the guide circular truncated cone 21 is 8-12 degrees, and the conical surface height H2 is increased when the inclination angle is too small, so that the volume and the weight of the tool are increased; the overlarge inclination angle can cause a large amount of overlarge expansion of the stop ring in the unit descending height, and the assembly difficulty is increased.
The height H3 of the positioning cylinder 22 should be greater than the height H4 of the cavity formed by the cooperation of the positioning guide tool 2 and the extrusion tool 4 as shown in fig. 1, so as to ensure that the positioning cylinder 22 can play a guiding role in the whole press-fitting process.
The thickness t1=0.9-1.1 mm of the positioning ring 23, and the thickness T1 of the positioning ring 23 should be reduced as much as possible on the premise of ensuring the strength of the positioning ring 23, so as to reduce the fluctuation of the stop ring 3 during assembly and reduce the assembly difficulty of the stop ring 3.
In the utility model, the positioning guide tool 2 is preferably made of steel to prolong the service life of the positioning guide tool, and the extrusion tool 4 is preferably made of nylon to reduce the weight of the positioning guide tool.
In the present utility model, the upper end of the positioning cylinder 22 and the lower end of the positioning hole 42 are provided with chamfers to facilitate the cooperation of the positioning cylinder 22 and the positioning hole 42.
In the utility model, a positioning ring 23 is positioned on the outer circle of a bearing 1, a stop ring 3 is sleeved on the conical surface of a guide round table 21, and an extrusion tool 4 is positioned on a positioning guide tool 2 through a positioning cylinder 22.
The height H1 of the positioning ring 23 should be equal to the distance L1 between the stop groove 10 and the upper end surface of the bearing 1 to perfectly protect the outer circumferential surface of the bearing 1 from contact with the inner circumference of the stop ring 3.
The inner diameter phi 1 of the positioning ring 23 is 0.1-0.2 mm larger than the outer diameter phi 5 of the bearing 1 so as to accurately position the positioning guide tool 2 on the outer ring of the bearing 1; the thickness T1 of the positioning ring 23 is 0.9-1.1 mm, and the thickness T1 of the positioning ring 23 is reduced as much as possible on the premise of the strength of the positioning ring 23, so that the fluctuation of the stop ring 3 during assembly is reduced, and the assembly difficulty of the stop ring 3 is reduced.
In operation, the present utility model is embodied as follows:
firstly, positioning a positioning guide tool 2 to the outer circle of a bearing 1 with a stop groove through a positioning ring 23; then placing the stop ring 3 on the conical surface of the guide round table 21 of the positioning guide tool 2; secondly, positioning the extrusion tooling 4 on the positioning guide tooling 2 through a positioning cylinder 22 on the positioning guide tooling 2; and finally, pushing force is applied above the extrusion tooling 4, so that the stop ring 3 is assembled into the stop groove 10 of the bearing 1, and the stop ring 3 is in non-contact with the outer circumferential surface of the bearing 1 in the whole assembly process, so that the scratch of the outer circumferential surface of the bearing 1 can be effectively avoided.
Claims (5)
1. A bearing stop ring press-fitting device is characterized in that: the extrusion device comprises a positioning guide tool (2) and an extrusion tool (4) which are matched with each other;
the positioning and guiding tool (2) comprises a guide round table (21), a positioning cylinder (22) and a positioning ring (23), wherein the positioning cylinder (22) is coaxially connected to the top surface of the guide round table (21), the positioning ring (23) is coaxially connected to the bottom surface of the guide round table (21), and the outer diameter of the positioning ring (23) is equal to the diameter of the bottom surface of the guide round table (21);
the extrusion tooling (4) comprises an extrusion tooling body, wherein a cylindrical accommodating hole (41) and a positioning hole (42) are formed in the extrusion tooling body, the positioning hole (42) is coaxially connected above the accommodating hole (41), and the inner diameter of the positioning hole (42) is smaller than that of the accommodating hole (41);
the positioning guide tool (2) is inserted into the extrusion tool (4), the diameter phi 4 of the positioning cylinder (22) is smaller than the inner diameter phi 3 of the positioning hole (42), the positioning cylinder (22) is in clearance fit with the positioning hole (42), the inner diameter phi 2 of the accommodating hole (41) is larger than the outer diameter of the positioning ring (23), the outer diameter of the positioning ring (23) =the inner diameter phi 1 of the positioning ring (23) plus the thickness T1 of the positioning ring (23), and the accommodating hole (41) is in clearance fit with the positioning ring (23);
the height H5 of the positioning hole (42) is larger than the height H3 of the positioning cylinder (22), the height H6=H2+H2 of the accommodating hole (41), H1 is the height of the guide circular table (21), and H2 is the height of the positioning ring (23).
2. The bearing snap ring press-fit device as claimed in claim 1, wherein: the inner diameter phi 3 = phi 4+ 0.1-0.2 mm of the positioning hole (42), and phi 4 is the diameter of the positioning cylinder (22).
3. The bearing snap ring press-fit device as claimed in claim 1, wherein: the inner diameter phi 2 = phi 1+2T1+ 0.1-0.2 mm of the accommodating hole (41), phi 1 is the inner diameter of the positioning ring (23), and T1 is the thickness of the positioning ring (23).
4. The bearing snap ring press-fit device as claimed in claim 1, wherein: the inclination angle beta 1 of the guide circular table (21) is 8-12 degrees.
5. The bearing snap ring press-fit device as claimed in claim 1, wherein: the thickness T1=0.9-1.1 mm of the positioning ring (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321164187.XU CN220515962U (en) | 2023-05-15 | 2023-05-15 | Bearing stop ring press-fitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321164187.XU CN220515962U (en) | 2023-05-15 | 2023-05-15 | Bearing stop ring press-fitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220515962U true CN220515962U (en) | 2024-02-23 |
Family
ID=89939492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321164187.XU Active CN220515962U (en) | 2023-05-15 | 2023-05-15 | Bearing stop ring press-fitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220515962U (en) |
-
2023
- 2023-05-15 CN CN202321164187.XU patent/CN220515962U/en active Active
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