CN210484433U - Tightening and shaping tool for bearing housing without inner ring - Google Patents
Tightening and shaping tool for bearing housing without inner ring Download PDFInfo
- Publication number
- CN210484433U CN210484433U CN201921125464.XU CN201921125464U CN210484433U CN 210484433 U CN210484433 U CN 210484433U CN 201921125464 U CN201921125464 U CN 201921125464U CN 210484433 U CN210484433 U CN 210484433U
- Authority
- CN
- China
- Prior art keywords
- positioning
- pressing block
- bearing
- diameter
- inner ring
- 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
- 238000007493 shaping process Methods 0.000 title claims description 14
- 238000003825 pressing Methods 0.000 claims abstract description 73
- 238000002360 preparation method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Images
Landscapes
- Automatic Assembly (AREA)
Abstract
The utility model discloses a tighten up design frock for no inner circle bearing housing, including base, location bush, lower briquetting, location gasket and last briquetting. The bottom plate of the base is provided with a through hole. The positioning bush is composed of a plurality of ferrules with the same specification and is coaxially pressed into the inner cavity of the base. The center of the bottom surface of the lower pressing block is provided with a cylindrical charging chute with the inner diameter larger than the outer diameter of the bearing without the inner ring, the depth of the charging chute is larger than the height of the bearing without the inner ring, and the lower pressing block is arranged at the lower part of the inner cavity of the positioning bush and in the through hole of the base bottom plate. The thickness of the positioning gasket is matched with the height of the bearing without the inner ring, the inner diameter of the positioning gasket is in sliding fit with the outer diameter of the bearing without the inner ring, and the positioning gasket is arranged on the top surface of the lower pressing block. The center of the bottom surface of the upper pressing block is provided with a conical pressing groove and is slidably arranged at the upper part of the inner cavity of the positioning bush. The utility model discloses a tighten up design frock enables the bearing housing and is tightening up the in-process and realize effectively stereotyping, improves the product percent of pass effectively.
Description
Technical Field
The utility model relates to a tighten up design frock for no inner circle bearing housing.
Background
The bearing without the inner ring is a high-precision miniature special structure bearing and is mainly used in the fields of aerospace, aviation and precision mechanical instruments and meters. The bearing 100 without the inner ring is composed of a group of rolling balls 10, two outer rings 20 which are arranged together, a dust cover 30 and a housing 40. When in use, the rolling balls 10 are uniformly distributed in a working area formed by the conical surfaces of the two outer rings 20, and then the inner round hole (namely the inner diameter of the bearing) formed by a group of rolling balls 10 is inserted into the rotating shaft 50 (see fig. 1). The initial axial cross-section of the housing 40 is U-shaped, and when the bearing is assembled, the two outer rings 20 with a set of rolling balls 10 mounted thereon are placed at the bottom of the inner cavity of the housing 40, the dust cap 30 is covered on the upper end surface of the outer ring 20, and then the housing 40 is tightened (the upper parts of the two side arms of the housing 40 are bent inward by 90 degrees) and is covered on the dust cap 30. The final tightening and fixing of the housing 40 in the manufacturing process of the bearing 100 without the inner race is always a difficult point in the processing. The current tightening and shaping tool comprises a base 1, a positioning bush 2, a lower pressing block 3 ' and an upper pressing block 5 ' (see fig. 2), and when tightening and shaping, the cover 40 is tightened and shaped by applying pressure on the upper pressing block 5 '. The too tight and too loose sizing of the housing 40 directly affects the installation and precision of the external dimension of the bearing. Because the wall of the housing 40 is thin, the bending directions of the two side arms are different after the top parts of the two side arms are stressed, and various irregular deformation problems such as the housing 40 is wrinkled, the housing is expanded in an oval shape, the two side arms are protruded and the like (see fig. 2a to 2d), so that the high rejection rate exists, and a lot of disadvantages are brought to production.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect and provide a tighten up design frock for having no inner circle bearing housing, it enables the bearing housing and is tightening up the in-process and realize effectively stereotyping, has improved the product percent of pass effectively.
The purpose of the utility model is realized like this: a tightening and shaping tool for a bearing housing without an inner ring comprises a base, a positioning bush, a lower pressing block, a positioning gasket and an upper pressing block; wherein,
the axial section of the base is U-shaped, and a through hole is formed in the bottom plate;
the inner diameter of the positioning bush is the same as the diameter of the through hole on the base bottom plate, and the outer diameter of the positioning bush is tightly matched with the inner diameter of the base; the positioning bush is composed of a plurality of ferrules with the same specification, and the ferrules are coaxially pressed into the inner cavity of the base;
the outer diameter of the lower pressing block is matched with the inner diameter of the positioning bush, a cylindrical charging chute with the inner diameter larger than the outer diameter of the bearing without the inner ring is arranged in the center of the bottom surface of the lower pressing block, and the depth of the charging chute is larger than the height of the bearing without the inner ring; the lower pressing block is arranged at the lower part of the inner cavity of the positioning bush and in the through hole of the base bottom plate;
the thickness of the positioning gasket is matched with the height of the bearing without the inner ring, the inner diameter of the positioning gasket is in sliding fit with the outer diameter of the bearing without the inner ring, and the outer diameter of the positioning gasket is in sliding fit with the inner diameter of the positioning bushing; the positioning gasket is arranged on the top surface of the lower pressing block;
the outer diameter of the upper pressing block is in sliding fit with the inner diameter of the positioning bush, a conical pressing groove is formed in the center of the bottom surface of the upper pressing block, and the maximum diameter of the pressing groove is larger than the outer diameter of the bearing without the inner ring; the upper pressing block is slidably arranged at the upper part of the inner cavity of the positioning bush.
The tightening and shaping tool for the bearing housing without the inner ring further comprises a push-out rod with a large upper part and a small lower part, the diameter of the upper part of the push-out rod is in sliding fit with the inner diameter of the positioning bush, the diameter of the lower part of the push-out rod is in sliding fit with the inner diameter of the positioning gasket, and the height of the lower part of the push-out rod is larger than the thickness of the positioning gasket.
The utility model discloses a tighten up design frock for having inner circle bearing housing has following characteristics:
1. the positioning bush is used for limiting the positions of the upper pressing block, the lower pressing block, the positioning gasket and the pressed bearing in the production process, so that the upper pressing block, the lower pressing block and the positioning gasket are kept coaxial, the adverse effect caused by radial displacement is avoided, and the tool can be repeatedly used for a long time; in addition, the positioning bush adopts the serial design of a plurality of ferrules with the same specification, so that the gas flow in the middle when the upper pressing block and the lower pressing block are installed due to the higher height and smaller fit clearance is avoided, the pressing in and the taking out of the upper pressing block, the lower pressing block and the positioning gasket are facilitated, and the friction between the upper pressing block and the lower pressing block and the positioning gasket is reduced;
2. the use of the positioning gasket ensures the dimensional requirements of the bearing on the height and the outer diameter of the bearing in the machining process;
3. the structure of the upper pressing block enables the bearing housing to obtain a pre-folding effect, obtains an ideal semi-finished product and provides good conditions for a later flattening process;
4. the lower pressing block is used for lifting the bearing at the initial stage of housing processing and taking out the bearing at the later stage;
5. the push-out rod is convenient to use, so that the bearing housing can be quickly taken out after being molded, and the damage to the excircle of the bearing is avoided.
Drawings
FIG. 1 is a schematic structural view of a bearing without an inner race;
FIG. 2 is a schematic structural diagram of a tightening and shaping tool for a bearing housing without an inner ring in the prior art;
FIGS. 2a to 2d are schematic structural diagrams of four types of bearings without inner rings formed after a tightening and shaping tool in the prior art is adopted;
fig. 3 is a schematic structural view of a tightening and shaping tool for a bearing housing without an inner ring of the utility model;
fig. 3a to 3f are working state diagrams of the tightening and shaping tool of the utility model.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 3, the tightening and shaping tool for a bearing housing without an inner ring of the present invention includes a base 1, a positioning bushing 2, a lower pressing block 3, a positioning gasket 4, an upper pressing block 5, and a pushing rod 6; wherein,
the axial section of the base 1 is U-shaped, and a through hole is arranged on a bottom plate;
the inner diameter of the positioning bush 2 is the same as the diameter of a through hole on the bottom plate of the base 1, and the outer diameter of the positioning bush 2 is tightly matched with the inner diameter of the base 1; the positioning bush 2 is composed of a plurality of ferrules with the same specification, and the plurality of ferrules are coaxially pressed into the inner cavity of the base 1;
the outer diameter of the lower pressing block 3 is matched with the inner diameter of the positioning bush 2, a cylindrical charging chute 3a with the inner diameter larger than the outer diameter of the bearing 100 without the inner ring is arranged in the center of the bottom surface of the lower pressing block 3, and the depth of the charging chute is larger than the height of the bearing 100 without the inner ring; the lower pressing block 3 is arranged at the lower part of the inner cavity of the positioning bush 2 and in a through hole of the bottom plate of the base 1;
the thickness of the positioning gasket 4 is matched with the height of the bearing 100 without the inner ring, the inner diameter of the positioning gasket 4 is in sliding fit with the outer diameter of the bearing 100 without the inner ring, and the outer diameter of the positioning gasket 4 is in sliding fit with the inner diameter of the positioning bushing 2; the positioning gasket 4 is arranged on the top surface of the lower pressing block 3;
the outer diameter of the upper pressing block 5 is in sliding fit with the inner diameter of the positioning bush 2, a conical pressing groove 5a is formed in the center of the bottom surface of the upper pressing block 5, and the maximum diameter of the pressing groove 5a is larger than the outer diameter of the bearing 100 without the inner ring; the upper pressing block 5 is slidably arranged at the upper part of the inner cavity of the positioning bush 2;
the upper diameter of the push-out rod 6 is in sliding fit with the inner diameter of the positioning bush 2, the lower diameter of the push-out rod 6 is in sliding fit with the inner diameter of the positioning gasket 4 or is slightly smaller than the outer diameter of the finished bearing 100 without the inner ring, and the lower height of the push-out rod 6 is larger than the thickness of the positioning gasket 4.
Referring to fig. 3a to 3f, the tightening and shaping tool for the bearing housing without the inner ring of the present invention operates according to the following steps:
firstly, inserting a bearing 100 without an inner ring to be processed into an inner cavity of a positioning gasket 4, then pushing a lower pressing block 3 into the inner cavity of the positioning bushing 2 from an upper end opening of a base 1 in a mode that the bottom surface is downward, then pushing the bearing 100 without the inner ring with the positioning gasket 4 onto the top surface of the lower pressing block 3, then pushing an upper pressing block 5 into the inner cavity of the positioning bushing 2 in a mode that the bottom surface is downward, applying force to punch the upper pressing block 5, and pre-bending parts of two side arms of a housing 40 of the bearing 100 without the inner ring, which are higher than the top surface of the positioning gasket 4, through a conical pressing groove 5a on the bottom surface of the upper pressing block 5 (see fig. 3 a;
secondly, taking out the upper pressing block 5 from the upper port of the base 1, then turning the upper pressing block 5, pushing the upper pressing block 5 into the inner cavity of the positioning bush 2 again in a manner that the top surface faces downwards (see fig. 3b), applying force to press the upper pressing block 5, and flattening the pre-bent parts of the two side arms of the housing 40 of the bearing 100 without the inner ring through the top surface of the upper pressing block 5 (see fig. 3 c);
and thirdly, taking out the lower pressing block 3 from the through hole of the base plate of the base 1, then turning over, pressing the lower pressing block 3 into the inner cavity of the positioning bush 2 from the through hole of the base plate of the base 1 in a mode that the bottom surface faces upwards, taking out the upper pressing block 5 from the inner cavity of the positioning bush 2, pressing the push-out rod 6 into the inner cavity of the positioning bush 2 from the upper port of the base 1 (see figure 3d), forcing to downwards press the push-out rod 6, pushing the bearing 100 without the inner ring out of the inner cavity of the positioning gasket 4 (see figure 3e), falling into the blanking groove 3a of the lower pressing block 3 (see figure 3f), and finally taking out the lower pressing block 3 from the through hole of the base plate of the base 1 to obtain the bearing 100 without the inner ring.
The utility model discloses a design frock for tightening up no inner circle bearing housing enables the bearing housing and realizes effectively finalizing the design tightening up the in-process, has improved the product percent of pass effectively.
The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.
Claims (2)
1. A tightening and shaping tool for a bearing housing without an inner ring comprises a base, a positioning bush, a lower pressing block, a positioning gasket and an upper pressing block; it is characterized in that the preparation method is characterized in that,
the axial section of the base is U-shaped, and a through hole is formed in the bottom plate;
the inner diameter of the positioning bush is the same as the diameter of the through hole on the base bottom plate, and the outer diameter of the positioning bush is tightly matched with the inner diameter of the base; the positioning bush is composed of a plurality of ferrules with the same specification, and the ferrules are coaxially pressed into the inner cavity of the base;
the outer diameter of the lower pressing block is matched with the inner diameter of the positioning bush, a cylindrical charging chute with the inner diameter larger than the outer diameter of the bearing without the inner ring is arranged in the center of the bottom surface of the lower pressing block, and the depth of the charging chute is larger than the height of the bearing without the inner ring; the lower pressing block is arranged at the lower part of the inner cavity of the positioning bush and in the through hole of the base bottom plate;
the thickness of the positioning gasket is matched with the height of the bearing without the inner ring, the inner diameter of the positioning gasket is in sliding fit with the outer diameter of the bearing without the inner ring, and the outer diameter of the positioning gasket is in sliding fit with the inner diameter of the positioning bushing; the positioning gasket is arranged on the top surface of the lower pressing block;
the outer diameter of the upper pressing block is in sliding fit with the inner diameter of the positioning bush, a conical pressing groove is formed in the center of the bottom surface of the upper pressing block, and the maximum diameter of the pressing groove is larger than the outer diameter of the bearing without the inner ring; the upper pressing block is slidably arranged at the upper part of the inner cavity of the positioning bush.
2. The tightening and shaping tool for the bearing housing without the inner ring according to claim 1, further comprising a push-out rod with a diameter of a larger upper part and a smaller lower part, wherein the diameter of the upper part of the push-out rod is in sliding fit with the inner diameter of the positioning bushing, the diameter of the lower part of the push-out rod is in sliding fit with the inner diameter of the positioning gasket, and the height of the lower part of the push-out rod is greater than the thickness of the positioning gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921125464.XU CN210484433U (en) | 2019-07-18 | 2019-07-18 | Tightening and shaping tool for bearing housing without inner ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921125464.XU CN210484433U (en) | 2019-07-18 | 2019-07-18 | Tightening and shaping tool for bearing housing without inner ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210484433U true CN210484433U (en) | 2020-05-08 |
Family
ID=70533269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921125464.XU Active CN210484433U (en) | 2019-07-18 | 2019-07-18 | Tightening and shaping tool for bearing housing without inner ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210484433U (en) |
-
2019
- 2019-07-18 CN CN201921125464.XU patent/CN210484433U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100493765C (en) | Forging method of large scale conical barrel | |
| CN102688962A (en) | Symmetric rolling forming method of large inner-step ring parts | |
| CN110479925A (en) | A kind of large size SRB wind power principal axis bearing outer-ring profiling milling method | |
| CN103212635B (en) | Car transmission synchronizer gear ring fine blanking and deep drawing combined forming process and mold | |
| CN202097351U (en) | Blind hole riveting structure for aluminum plate fastening stud | |
| CN109332482B (en) | Pressure accumulator membrane box membrane optimized stamping forming process method | |
| CN210484433U (en) | Tightening and shaping tool for bearing housing without inner ring | |
| CN101922516A (en) | Simple pressing method of no-turned-edge dust cover of thin-wall bearing | |
| CN110842120B (en) | Rolling and rotary forming method for large-taper complex special-shaped ring disc type component | |
| CN109465369B (en) | Ring rolling forming device for rolling and bending single integral ring of special-shaped joint | |
| JP4572644B2 (en) | Manufacturing method of high precision ring | |
| CN202946555U (en) | All-pressing cage structure and device for tapered roller bearing | |
| CN209502768U (en) | A kind of bearing fixing device with retainer | |
| CN109667840B (en) | Assembly method of miniature standard rolling bearing crown-shaped retainer | |
| CN207521544U (en) | A kind of helical blade stamping die | |
| CN105598331A (en) | Cylindrical forge piece precise mandrel broaching method | |
| CN110842121A (en) | Forging die for wind power bearing ring | |
| CN114309398A (en) | Near-net forming method for high-temperature alloy special-shaped ring forging | |
| CN218611062U (en) | Die for machining inner grooves of steel pipes | |
| CN220652549U (en) | Tool for three-piece assembled connector | |
| CN101457789B (en) | Ferrule processing and assembling method for cylindrical roller bearing | |
| CN110625011A (en) | Mirror surface motor shell drawing die and drawing method thereof | |
| CN216828281U (en) | Stamping device is used in bearing production with function of making an uproar is fallen | |
| JPH08323439A (en) | Cylindrical ring press forming device and method thereof | |
| CN209838985U (en) | Tool for quickly mounting steel balls |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230207 Address after: 201108 Part of the first floor (15-1-B, 15-1-C, 15-1-D, 15-1-E) of Building 15, No. 4399, Yindu Road, Minhang District, Shanghai Patentee after: Shanghai Tianhong Miniature Bearing Co.,Ltd. Address before: 200001 43A-16 four, B District, 666 Beijing East Road, Huangpu District, Shanghai. Patentee before: SHANGHAI MOHONG BEARING Co.,Ltd. |
|
| TR01 | Transfer of patent right |