CN220347117U - Tensioning wheel riveting die and riveting device - Google Patents
Tensioning wheel riveting die and riveting device Download PDFInfo
- Publication number
- CN220347117U CN220347117U CN202321949877.6U CN202321949877U CN220347117U CN 220347117 U CN220347117 U CN 220347117U CN 202321949877 U CN202321949877 U CN 202321949877U CN 220347117 U CN220347117 U CN 220347117U
- Authority
- CN
- China
- Prior art keywords
- riveting
- die
- hole
- tensioning wheel
- axial positioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007599 discharging Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 16
- 230000002035 prolonged effect Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model relates to the field of bearings, and particularly discloses a tensioning wheel riveting die and a riveting device. The tensioning wheel riveting die comprises a main body, wherein an axial positioning surface is arranged on the main body, a riveting hole is formed in the axial positioning surface, at least one convex rib is arranged on the inner wall of the riveting hole, and the convex rib extends along the axis direction of the riveting hole. The tensioning wheel riveting die can carry out riveting operation on the mounting shaft after the bearing is mounted in place, the bearing is limited on the mounting shaft, the bearing is prevented from moving axially relative to the support in the working process, and the tensioning wheel is ensured to work normally.
Description
Technical Field
The utility model relates to the field of bearings, in particular to a tensioning wheel riveting die and a riveting device.
Background
The tensioner is one of the important parts of the transmission system of the automobile, and as shown in fig. 1 and 2, the tensioner generally comprises a bearing 02 and a bracket 01, wherein the bracket 01 is used for mounting connection, and the bearing 02 is used for sliding contact with a belt. The bracket 01 comprises a mounting shaft 011, the bearing 02 comprises an inner ring 021, an outer ring 011 and rolling bodies, and the inner ring 021 of the bearing 02 is sleeved on the mounting shaft 011.
In the existing tensioning wheel structure, a part for axially limiting the inner ring of the bearing is lacking, the bearing has the possibility of axially moving relative to the mounting shaft during operation, and even the risk of separating the bearing from the support exists, so that the service performance of the tensioning wheel is greatly influenced.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a tensioning wheel riveting die and a riveting device, which can carry out riveting operation on a mounting shaft after a bearing is mounted in place, limit the bearing on the mounting shaft, avoid axial movement of the bearing relative to a bracket in the working process and ensure normal working of the tensioning wheel.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the utility model provides a take-up pulley riveting mould, includes the main part, the main part on be equipped with the axial locating surface, the axial locating surface on be equipped with the riveting hole, the inner wall in riveting hole is equipped with at least one protruding muscle, protruding muscle extend along the axis direction in riveting hole.
The riveting hole is matched with the mounting shaft of the tensioning wheel, after the tensioning wheel is assembled, the mounting shaft of the tensioning wheel is aligned with the riveting hole, and the mounting shaft is gradually pressed into the riveting hole under the action of external pressure. Because the inner wall of the riveting hole is provided with the convex ribs, the convex ribs squeeze the mounting shaft to deform locally in the process that the mounting seat enters the riveting hole, so that the roundness of the section of the mounting shaft is damaged, the inner ring of the bearing mounted on the mounting shaft can be limited, the bearing is prevented from moving axially relative to the support in the subsequent working process, and the normal working of the tensioning wheel is ensured.
The stress of the mounting shaft in the extrusion deformation process is large, the reverse acting force on the die is also large, the convex ribs are arranged on the inner wall of the riveting hole, the whole wall thickness of the riveting die can be used for assisting in bearing the reverse acting force in the riveting process, the damage of the riveting process to the convex ribs is reduced, and therefore the whole service life of the riveting die is prolonged.
Preferably, the positioning surface is further provided with an outer ring positioning groove, and the outer ring positioning groove is annularly arranged around the riveting hole. The outer ring positioning groove limits the outer diameter of the bearing outer ring, and positioning accuracy between the tensioning wheel and the riveting die is improved. Meanwhile, in the process of downwards riveting the tensioning wheel, the outer ring positioning groove provides space for downwards movement of the outer ring.
Preferably, the length of the convex rib is equal to the depth of the riveting hole. After the convex rib part is damaged, the riveting die can be cut and repaired along the direction perpendicular to the riveting hole, and the whole service life of the riveting die is prolonged in a mode of cutting the riveting die part.
Preferably, the main body is provided with two axial positioning surfaces, and the two axial positioning surfaces are arranged in parallel; the riveting hole is perpendicular to the axial positioning surfaces and is communicated with the two axial positioning surfaces. The two axial positioning surfaces of the riveting die can be used for riveting with the tensioning wheel in a matched mode, and the service life can be prolonged by changing the axial positioning surfaces on the premise of not repairing.
The tensioning wheel riveting device comprises a riveting head and the tensioning wheel riveting die, wherein the riveting head is positioned above the riveting die; the riveting die further comprises a driving unit for driving the riveting head to move up and down relative to the riveting die.
The driving unit and the riveting head are used for pushing the tensioning wheel to move and extruding the mounting shaft into the riveting hole.
Preferably, the die comprises a die holder, wherein the die holder is provided with a limiting hole; the riveting die is positioned above the die holder and is detachably connected with the die holder, and the limiting hole is aligned with the riveting hole;
the automatic discharging assembly comprises a top block and a discharging elastic piece, wherein the top block is arranged in the limiting hole in a sliding mode, and part of the top block extends into the riveting hole. In the riveting process, the mounting shaft pushes the ejector block to move downwards, and the unloading elastic piece stores energy; when riveting is completed, external pressure is removed, the unloading elastic piece pushes the tensioning wheel to ascend, and the mounting shaft is withdrawn from the riveting hole.
Preferably, the die holder further comprises a bottom plate, wherein the die holder is positioned between the bottom plate and the riveting die and is detachably connected with the bottom plate; the unloading elastic piece is positioned between the top block and the bottom plate. The bottom plate plays a supporting and limiting role.
Drawings
FIG. 1 is a front cross-sectional view of a conventional tensioner;
FIG. 2 is a top view of a conventional tensioner;
FIG. 3 is a front cross-sectional view of the tensioner of the present embodiment;
fig. 4 is a front cross-sectional view of a riveting die in the tensioning wheel riveting device of the embodiment;
fig. 5 is a top view of a riveting die in the tensioning wheel riveting device according to the embodiment;
fig. 6 is a front cross-sectional view of the riveting die and the tensioning wheel in the tensioning wheel riveting device of the embodiment;
fig. 7 is a front cross-sectional view showing a state in which a riveting die is incorporated into a tensioning wheel in the tensioning wheel riveting device of the present embodiment;
fig. 8 is a front cross-sectional view showing a state of riveting a tensioning wheel by a riveting die in the tensioning wheel riveting device of the embodiment;
fig. 9 is a front cross-sectional view showing a state in which riveting of a riveting die in the tensioning wheel riveting device of the present embodiment is completed;
fig. 10 is a front cross-sectional view of a tensioning sheave processed using the tensioning sheave crimping apparatus of the present embodiment.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Examples
As shown in fig. 3, the tensioning wheel riveting device comprises a riveting head 6 and a riveting die 1, wherein the riveting head 6 is positioned above the riveting die 1. And a driving unit for driving the riveting head 6 to move up and down relative to the riveting die 1. The driving unit and the riveting head 6 are used for pushing the tensioning wheel to move and extruding the mounting shaft into the riveting die 1.
As shown in fig. 5 and 6, the riveting die 1 includes a main body, an axial positioning surface 14 is disposed on the main body, a riveting hole 13 is disposed on the axial positioning surface 14, at least one protruding rib 11 is disposed on an inner wall of the riveting hole 13, and the protruding rib 11 extends along an axial direction of the riveting hole 13.
As shown in fig. 3, the die holder further comprises a die holder 2 and a bottom plate 3, wherein the die holder 2 is provided with a limiting hole. The riveting die 1 is positioned above the die holder 2 and is detachably connected with the die holder 2, and the limiting hole is aligned with the riveting hole 13. The die holder 2 is positioned between the bottom plate 3 and the riveting die 1 and is detachably connected with the bottom plate 3. The discharging elastic piece 4 is positioned between the top block 5 and the bottom plate 3. The bottom plate 3 plays a supporting and limiting role. Specifically, die holder 2 passes through bolted connection with riveting die 1, and die holder 2 bottom is equipped with the spacing ring 21 that extends to the outside, bottom plate 3 on through bolted connection with clamp plate 31, clamp plate 31 compresses tightly spacing ring 21.
As shown in fig. 4 and 7, the riveting hole 13 is matched with the installation shaft of the tensioning wheel, after the tensioning wheel is assembled, the installation shaft 011 of the tensioning wheel is aligned with the riveting hole 13, and the installation shaft 011 is gradually pressed into the riveting hole 13 under the action of the driving unit, namely, the state shown in fig. 8. Because the inner wall of the riveting hole 13 is provided with the convex rib 11, the convex rib 11 extrudes the mounting shaft 011 to deform locally to form the riveting point 012 in the process that the mounting seat enters the riveting hole 13, so that the roundness of the section of the mounting shaft 011 is damaged, the bearing inner ring 021 mounted on the mounting shaft 011 can be limited, the tensioning wheel shown in fig. 10 is obtained, the bearing is prevented from moving axially relative to the support in the subsequent working process, and the normal working of the tensioning wheel is ensured.
The stress of the mounting shaft in the extrusion deformation process is large, the reverse acting force on the die is also large, the convex rib 11 is arranged on the inner wall of the riveting hole 13, the whole wall thickness of the riveting die 1 can be used for assisting in bearing the reverse acting force in the riveting process, the damage of the convex rib 11 in the riveting process is reduced, and therefore the whole service life of the riveting die 1 is prolonged.
As shown in fig. 4 and 5, specifically, the positioning surface is further provided with an outer ring positioning groove 12, and the outer ring positioning groove 12 is annularly arranged around the riveting hole 13. The outer ring positioning groove 12 limits the outer diameter of the bearing outer ring, and improves the positioning precision between the tensioning wheel and the riveting die 1. Meanwhile, in the process of downwards riveting the tensioning wheel, the outer ring positioning groove 12 provides space for the downward movement of the outer ring.
As shown in fig. 4 and 5, as a preferred embodiment, the length of the bead 11 is equal to the depth of the rivet hole 13. After the convex rib 11 is partially damaged, the riveting die 1 can be cut and repaired along the direction perpendicular to the riveting hole 13, and the whole service life of the riveting die 1 is prolonged by partially cutting the riveting die 1.
As shown in fig. 4 and 5, as a preferred embodiment, the main body is provided with two axial positioning surfaces 14, and the two axial positioning surfaces 14 are arranged in parallel; the riveting hole 13 is perpendicular to the axial positioning surfaces 14 and is communicated with the two axial positioning surfaces 14. The two axial positioning surfaces 14 of the riveting die 1 can be used for riveting with the tensioning wheel in a matched mode, and the service life can be prolonged by changing the form of the axial positioning surfaces 14 on the premise of not repairing.
As shown in fig. 7-9, the automatic discharging device further comprises an automatic discharging assembly, wherein the automatic discharging assembly comprises a top block 5 and a discharging elastic piece 4, and the top block 5 is slidably arranged in the limiting hole and partially extends into the riveting hole 13. In the riveting process, the mounting shaft pushes the ejector block 5 to move downwards, and the unloading elastic piece 4 stores energy; when the riveting is completed, the external pressure is removed, the discharging elastic piece 4 pushes the tensioning wheel to ascend, and the mounting shaft is withdrawn from the riveting hole 13.
In summary, the foregoing description is only of the preferred embodiments of the utility model, and is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (7)
1. The utility model provides a take-up pulley riveting mould which characterized in that: the riveting die comprises a main body, wherein an axial positioning surface is arranged on the main body, a riveting hole is formed in the axial positioning surface, at least one convex rib is arranged on the inner wall of the riveting hole, and the convex rib extends along the axis direction of the riveting hole.
2. The tensioner rivet die set forth in claim 1, wherein: the positioning surface is also provided with an outer ring positioning groove, and the outer ring positioning groove is annularly arranged around the riveting hole.
3. The tensioner rivet die set forth in claim 1, wherein: the length of the convex rib is equal to the depth of the riveting hole.
4. A tensioning wheel riveting die as claimed in any one of claims 1-3 wherein: the main body is provided with two axial positioning surfaces which are arranged in parallel; the riveting hole is perpendicular to the axial positioning surfaces and is communicated with the two axial positioning surfaces.
5. The utility model provides a take-up pulley riveting device which characterized in that: comprising a riveting head and a tensioning wheel riveting die as claimed in any one of claims 1 to 4, the riveting head being located above the riveting die; the riveting die further comprises a driving unit for driving the riveting head to move up and down relative to the riveting die.
6. The tensioner as in claim 5, wherein: the die holder is provided with a limiting hole; the riveting die is positioned above the die holder and is detachably connected with the die holder, and the limiting hole is aligned with the riveting hole;
the automatic discharging assembly comprises a top block and a discharging elastic piece, wherein the top block is arranged in the limiting hole in a sliding mode, and part of the top block extends into the riveting hole.
7. The tensioner as in claim 6, wherein: the die holder is positioned between the bottom plate and the riveting die and is detachably connected with the bottom plate; the unloading elastic piece is positioned between the top block and the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321949877.6U CN220347117U (en) | 2023-07-24 | 2023-07-24 | Tensioning wheel riveting die and riveting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321949877.6U CN220347117U (en) | 2023-07-24 | 2023-07-24 | Tensioning wheel riveting die and riveting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220347117U true CN220347117U (en) | 2024-01-16 |
Family
ID=89501883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321949877.6U Active CN220347117U (en) | 2023-07-24 | 2023-07-24 | Tensioning wheel riveting die and riveting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220347117U (en) |
-
2023
- 2023-07-24 CN CN202321949877.6U patent/CN220347117U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10220432B2 (en) | Welded idler and manufacturing method thereof | |
| CN113617925B (en) | Manufacturing method and equipment of pipe clamp and pipe clamp | |
| CN220347117U (en) | Tensioning wheel riveting die and riveting device | |
| CN213613701U (en) | Punching press riveting tools | |
| CN201267837Y (en) | Anchoring clamping piece blank multi-station cold extrusion mold | |
| CN109877546B (en) | Automatic grooving device for filter screen of liquid storage device | |
| CN112893659A (en) | Riveting machine for joint assembly of guide pipe joint of inhaul cable | |
| CN209850281U (en) | Riveting system of synchronous pulley and retaining ring | |
| CN113399611A (en) | Friction press-based spline hub forging process | |
| CN211331950U (en) | Self-centering automobile welding fixture tool | |
| CN211331949U (en) | Automobile welding fixture device | |
| CN112096748A (en) | Angular contact ball bearing ball distributing method and ball distributing device | |
| CN110586793A (en) | Compound mould of circular cone holder | |
| CN116833287A (en) | Boss equipartition type belt pulley spinning tool and spinning processing method | |
| CN207479325U (en) | A kind of holder for tapered roller bearing integration makes assembling die | |
| CN217633511U (en) | Thrust ball bearing assembly fixture | |
| CN215391892U (en) | V-shaped spinning belt pulley positioning tool | |
| CN218891106U (en) | Novel sleeve riveting tool | |
| CN212495125U (en) | Integrated bevel gear shaft cold heading forming die | |
| CN215614433U (en) | Punching tool for V-shaped spinning belt pulley | |
| CN214691962U (en) | Separable automotive interior part tool | |
| CN112065954A (en) | Composite large V multi-wedge plate belt pulley and forming method | |
| CN116422776B (en) | Stamping device is used in battery steel casing processing with unloading function fast | |
| CN217648303U (en) | Bearing tool clamp for automobile steering column | |
| CN220128056U (en) | Quick-change chuck assembly structure suitable for press mounting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |