CN108213908B - Flanging method of hydraulic bushing outer sleeve - Google Patents
Flanging method of hydraulic bushing outer sleeve Download PDFInfo
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- CN108213908B CN108213908B CN201611160895.0A CN201611160895A CN108213908B CN 108213908 B CN108213908 B CN 108213908B CN 201611160895 A CN201611160895 A CN 201611160895A CN 108213908 B CN108213908 B CN 108213908B
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- bushing
- flanging
- hydraulic bushing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/065—Press rams
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Gasket Seals (AREA)
Abstract
The invention provides a flanging method of a hydraulic bushing outer sleeve, which comprises the following steps: 1) processing grooves on the inner walls of the two ends of the bushing sleeve to form flanges, arranging a sealing gasket in each groove, and rounding the outer side of the sealing gasket; 2) pre-bending the flanges at two ends of the bushing outer sleeve by a certain angle by adopting a first pressure head; 3) and taking out the first pressure head, and bending the flanges at the two ends of the bushing sleeve to be completely attached to the outer side of the sealing gasket by adopting the second pressure head. The hydraulic bushing has the advantages of preventing internal leakage of the hydraulic bushing and having good sealing effect.
Description
Technical Field
The invention relates to the field of hydraulic bushings, in particular to a flanging method of a hydraulic bushing outer sleeve.
Background
The existing hydraulic bushing product is applied to the field of automobile suspensions, mainly meets the requirements of products on low-frequency large rigidity, large damping or high-frequency small rigidity and small damping so as to achieve the purposes of quickly attenuating vibration and reducing noise, and the existing hydraulic bushing is not applied in the field of rail transit. The hydraulic bushing is applied to the field of rail transit, the problem of liquid sealing is difficult, the flanging method of the bushing outer sleeve plays a role in determining the sealing effect of the hydraulic bushing, and the existing flanging method cannot ensure that flanges are completely attached to two ends of the hydraulic bushing, so that liquid in the hydraulic bushing is seriously leaked and the sealing effect is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a flanging method of a hydraulic bushing outer sleeve, which can prevent the leakage inside a hydraulic bushing and has good sealing effect.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a flanging method of a hydraulic bushing outer sleeve comprises the following steps:
1) processing grooves on the inner walls of the two ends of the bushing sleeve to form flanges, arranging a sealing gasket in each groove, and rounding the outer side of the sealing gasket;
2) pre-bending the flanges at two ends of the bushing outer sleeve by a certain angle by adopting a first pressure head;
3) and taking out the first pressure head, and bending the flanges at the two ends of the bushing sleeve to be completely attached to the outer side of the sealing gasket by adopting the second pressure head.
As a further improvement of the above technical solution:
in step 2), the first press head is mounted on the press machine through the connecting plate part, and the press machine is started to provide downward press-fitting force.
The connecting plate component comprises a connecting plate and an intermediate plate, the connecting plate is installed on the press machine through a fastener, the elastic element and the flanging pressing cylinder are sequentially placed in the accommodating groove between the connecting plate and the intermediate plate, and then the connecting plate and the intermediate plate are fixed through the fastener, so that the elastic element and the flanging pressing cylinder are positioned.
After the first pressure head is installed, a fixing ring is installed on the first pressure head at the lower end of the bushing outer sleeve, and the hydraulic bushing is placed into the fixing ring.
In step 3), before the first pressure head is taken out, the press machine lifts the first pressure head at the upper end of the bushing outer sleeve and takes out the hydraulic bushing.
The second ram is mounted to the web member using fasteners.
After the second pressure head is installed, a fixing ring is installed on the second pressure head at the lower end of the bushing outer sleeve, the hydraulic bushing is placed into the fixing ring, and the press machine is started to provide downward press-fitting force.
And 3), lifting the second pressure head at the upper end of the bushing outer sleeve by the press machine, and taking out the flanged hydraulic bushing.
Compared with the prior art, the invention has the advantages that:
the grooves are processed on the inner walls of the two ends of the bushing sleeve to form the flanges, the sealing gasket is arranged in the grooves, the round corners are arranged on the outer sides of the grooves, and the first pressure head and the second pressure head are adopted to pre-bend and completely bend the flanges of the bushing sleeve step by step, so that the flanges of the bushing sleeve are smoothly and completely attached to the outer sides of the sealing gasket in the two bending processes, liquid in the hydraulic bushing is prevented from being leaked from the two ends of the bushing sleeve difficultly, and the sealing effect of the hydraulic bushing is ensured.
The invention further installs the pressure head on the press machine through the connecting plate part, and the pressure head can be directly installed on the existing press machine without adding other equipment, and the invention has the advantages of convenient and simple operation and low cost investment.
The elastic element is further arranged between the pressure head assembly and the hydraulic bushing, the elastic element provides a press-fitting force, and meanwhile, the hydraulic bushing can be conveniently taken out after flanging is completed.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
FIG. 1 is a schematic flow diagram of the flanging method of the present invention.
Figure 2 is a schematic view of the pre-bending of the cuff of the present invention.
Figure 3 is a schematic view of the complete bending of the cuff of the present invention.
Fig. 4 is a schematic structural view of the flanging tool of the invention.
Fig. 5 is a schematic view of the structure of the first ram.
Fig. 6 is a schematic view of the structure of the second ram.
The reference numerals in the figures denote:
1. a ram assembly; 11. a first ram; 12. a second ram; 13. processing the dough; 14. positioning the surface; 15. a connecting member; 151. a connecting plate; 152. a middle plate; 16. a containing groove; 17. an avoidance groove; 2. sealing gaskets; 21. round corners; 3. a hydraulic bushing; 31. flanging the outer sleeve; 32. a bushing outer sleeve; 321. a groove; 4. an elastic element; 5. flanging and pressing the cylinder; 51. blocking edges; 6. a gear part; 7. and (4) fixing the ring.
Detailed Description
The invention will be described in further detail with reference to the drawings and specific examples of the description, which should not be construed as limiting the scope of the invention.
As shown in fig. 1 to 3, the method for flanging the hydraulic bushing outer sleeve of the embodiment includes the following steps:
1) processing grooves 321 on the inner walls of two ends of the bushing outer sleeve 32 to form flanges, arranging a sealing gasket 2 in the grooves 321, and rounding off the outer side 21 of the sealing gasket 2;
2) pre-bending the flanges at two ends of the bushing outer sleeve 32 by a certain angle by using a first pressure head 11;
3) and taking out the first pressure head 11, and bending the flanges at the two ends of the bushing outer sleeve 32 to be completely attached to the outer side of the sealing gasket 2 by adopting the second pressure head 12.
In the invention, the grooves 321 are processed on the inner walls of the two ends of the bushing outer sleeve 32 to form flanges, the sealing gasket 2 is arranged in the groove 321, the round angle 21 is arranged on the outer side of the groove 321, and the first pressure head 11 and the second pressure head 12 are adopted to pre-bend and completely bend the outer sleeve flange 31 step by step, so that the outer sleeve flange 31 is smoothly and completely attached to the outer side of the sealing gasket 2 in the two bending processes, the liquid in the hydraulic bushing 3 is prevented from being leaked from the two ends of the bushing, and the sealing effect of the hydraulic bushing 3 is ensured.
In this embodiment, in step 2), install first pressure head 11 on the press through connecting plate 151 adapting unit 15, start the press and provide down pressure equipment power, can be with first pressure head 11 direct mount on current press, need not to increase other equipment, convenient operation is simple, the cost drops into for a short time.
In this embodiment, the connecting member 15 of the connecting plate 151 includes a connecting plate 151 and an intermediate plate 152, the connecting plate 151 is mounted on the press machine through a fastener, the elastic element 4 and the flanging pressing cylinder 5 are sequentially placed in the accommodating groove 16 between the connecting plate 151 and the intermediate plate 152, and then the connecting plate 151 and the intermediate plate 152 are fixed by the fastener, so that the elastic element 4 and the flanging pressing cylinder 5 are positioned. The connecting plate 151, the middle plate 152 and the pressure head are connected by fasteners, so that the connecting pieces can be conveniently detached and have high flexibility; meanwhile, the elastic element 4 and the flanging press cylinder 5 are arranged in the accommodating groove 16 between the connecting plate 151 and the intermediate plate 152, the structure is compact, and after flanging is completed, the blocking part 6 in the accommodating groove 16 and the flange 51 of the flanging press cylinder 5 can play a role in axially limiting the elastic element 4.
In the embodiment, the elastic element 4 is in a compressed state during press fitting and has restoring force acting on the hydraulic bushing 3, the arrangement of the elastic element 4 provides flanging press fitting force, and after flanging is completed, the elastic restoring force generated by the elastic element 4 can quickly and conveniently take out the hydraulic bushing 3, so that the operability is good; in this embodiment, the elastic element 4 is a belleville spring.
In this embodiment, after the first ram 11 is mounted, the fixing ring 7 is mounted on the first ram 11 at the lower end of the liner sheath 32, and the hydraulic liner 3 is placed in the fixing ring 7, thereby preventing the hydraulic liner 3 from being deformed during press fitting. Meanwhile, an avoiding groove 17 is formed in the second ram 12 at the upper end of the bushing outer sleeve 32, and the avoiding groove 17 provides an avoiding space for the fixing ring 7 during press fitting. In this embodiment, in step 3), before the first ram 11 is taken out, the press machine lifts the first ram 11 located at the upper end of the bushing outer sleeve 32, and takes out the hydraulic bushing 3; after the first pressure head 11 is taken out, the second pressure head 12 is installed on the connecting part 15 of the connecting plate 151 by adopting a fastener, and two-time flanging of the outer sleeve of the hydraulic bushing 3 can be realized by adopting a press machine, so that the cost is low, and the operation is convenient.
In this embodiment, after the second ram 12 is mounted, the fixing ring 7 is mounted on the second ram 12 at the lower end of the liner sleeve 32, the hydraulic liner 3 is placed in the fixing ring 7, and the press machine is started to provide a downward pressing force. Meanwhile, an avoiding groove 17 is formed in the second ram 12 at the upper end of the bushing outer sleeve 32, and the avoiding groove 17 provides an avoiding space for the fixing ring 7 during press fitting.
In this embodiment, after step 3), the press lifts the second ram 12 at the upper end of the liner jacket 32 and takes out the flanged hydraulic liner 3.
As shown in fig. 4, in this embodiment, the flanging tool of the flanging method of the hydraulic bushing outer sleeve includes a pressing head assembly 1 and a sealing gasket 2, the pressing head assembly 1 includes an upper pressing head assembly and a lower pressing head assembly, the upper pressing head assembly and the lower pressing head assembly are symmetrically arranged at two axial sides of the hydraulic bushing 3, the upper pressing head assembly and the lower pressing head assembly include a first pressing head 11 and a second pressing head 12, the first pressing head 11 primarily bends the outer sleeve flanging 31, and the second pressing head 12 completely bends the outer sleeve flanging 31; the inner walls of the two ends of the outer sleeve are provided with the sealing gasket 2, the outer side of the sealing gasket 2 is provided with a fillet 21, and the outer sleeve flanging 31 is attached to the outer side of the sealing gasket 2 after being completely bent.
As shown in fig. 5 and 6, in this embodiment, the first pressing head 11 and the second pressing head 12 are both provided with a processing surface 13 and a positioning surface 14, the processing surface 13 is used for bending the outer sleeve flange 31, the positioning surface 14 is used for positioning the outer sleeve flange 31, the positioning surface 14 is vertically arranged, and the positioning surface 14 is connected with the processing surface 13 and arranged at an included angle to form a processing angle for press-fitting the flange. In this embodiment, the angle of the initial bending is 45 °, the angle of the complete bending is 90 °, at this time, the processing surface 13 of the first pressing head 11 and the positioning surface 14 are 135 °, and the processing surface 13 of the second pressing head 12 and the positioning surface 14 are 90 °. In other embodiments, the included angle between the processing surface 13 and the positioning surface 14 of the first pressing head 11 can be specifically set according to the angle to be primarily bent.
In this embodiment, the hydraulic bushing includes rubber main spring and two rubber auxiliary springs, the rubber main spring is used for providing the radial rigidity of hydraulic bushing 3, the two rubber auxiliary springs are used for providing the axial rigidity of hydraulic bushing 3, the two rubber auxiliary springs are sealed and pressed at the two ends of the rubber main spring through bushing outer sleeve 32, the matching form of the rubber main spring and the two rubber auxiliary springs can realize the matching of the multi-directional rigidity, and different design requirements of customers can be met by adjusting the radial rigidity and the axial rigidity ratio of hydraulic bushing 3.
In this embodiment, the rubber main spring comprises a core shaft, a first rubber body and a nylon body which are sequentially sleeved, the core shaft and the first rubber body and the nylon body are connected in a vulcanization mode, the core shaft is connected with a framework of a bogie, and a bushing outer sleeve 32 is connected with a positioning rotating arm of the bogie; in this embodiment, the rubber auxiliary spring includes the second rubber body, support ring, and the support ring cover is located on the dabber, and the second rubber body is installed on the dabber through the support ring, and in this embodiment, seal gasket sets up in the second rubber body, still is provided with the inboard seal gasket that is close to the setting of rubber main spring in the second rubber body, further guarantees the effective seal of hydraulic pressure bush 3.
In the embodiment, the rubber main spring, the rubber auxiliary spring and the bushing outer sleeve 32 are pressed in an interference fit mode, and the pressing is carried out in a normal-temperature silicone oil adding mode, so that the pressing effect can be ensured, and the sealing effect of the hydraulic bushing 3 is further improved.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. A flanging method of a hydraulic bushing outer sleeve is characterized by comprising the following steps:
1) processing grooves on the inner walls of the two ends of the bushing sleeve to form flanges, arranging a sealing gasket in each groove, and rounding the outer side of the sealing gasket;
2) pre-bending the flanges at two ends of the bushing sleeve by a certain angle by adopting a first pressure head to perform pre-bending;
3) and taking out the first pressure head, and bending the flanges at the two ends of the bushing outer sleeve to be completely attached to the outer side of the sealing gasket by adopting the second pressure head so as to be completely bent.
2. A method of flanging a hydraulic bushing jacket according to claim 1, wherein in step 2) the first ram is mounted on a press through a web member, and the press is activated to provide a downward press-fitting force.
3. A method of flanging a hydraulic bushing housing according to claim 2, characterized in that the connecting plate member comprises a connecting plate and an intermediate plate, the connecting plate is mounted on the press by means of fasteners, the elastic element and the flanging press cylinder are placed in sequence in the accommodating groove between the connecting plate and the intermediate plate, and then the connecting plate and the intermediate plate are fixed by means of the fasteners so that the elastic element and the flanging press cylinder are positioned.
4. A method of flanging a hydraulic bushing sleeve according to claim 2, characterized in that after the first ram is mounted, a fixing ring is mounted on the first ram at the lower end of the bushing sleeve, and the hydraulic bushing is placed in the fixing ring.
5. A method for flanging a hydraulic bushing sleeve according to any one of claims 2 to 4, characterized in that in step 3), the press lifts the first ram at the upper end of the bushing sleeve and removes the hydraulic bushing before removing the first ram.
6. A method of flanging a hydraulic bushing housing according to claim 5, characterized in that the second ram is mounted on the web member by means of fasteners.
7. A method of flanging a hydraulic bushing sleeve according to claim 6, characterized in that after the second ram is installed, a fixing ring is installed on the second ram at the lower end of the bushing sleeve, the hydraulic bushing is placed in the fixing ring, and the press is started to provide a downward press-fitting force.
8. The method for flanging a hydraulic bushing shell according to any one of claims 2 to 4, wherein after step 3), the press lifts up the second ram located at the upper end of the bushing shell and removes the flanged hydraulic bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611160895.0A CN108213908B (en) | 2016-12-15 | 2016-12-15 | Flanging method of hydraulic bushing outer sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611160895.0A CN108213908B (en) | 2016-12-15 | 2016-12-15 | Flanging method of hydraulic bushing outer sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN108213908A CN108213908A (en) | 2018-06-29 |
| CN108213908B true CN108213908B (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611160895.0A Active CN108213908B (en) | 2016-12-15 | 2016-12-15 | Flanging method of hydraulic bushing outer sleeve |
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| CN (1) | CN108213908B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109436458A (en) * | 2018-12-27 | 2019-03-08 | 淅川县金博橡塑有限公司 | A kind of two-way beam mouth tooling of rubber bushing and method |
| CN112123742B (en) * | 2020-08-17 | 2022-08-26 | 株洲时代瑞唯减振装备有限公司 | Motor spherical hinge flanging method and flanging tool for improving product symmetry |
| CN118143105B (en) * | 2024-05-13 | 2024-07-02 | 吉林省东信工装设备有限公司 | Bush prepressing flanging machine for automobile side plate assembly production line |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201012375Y (en) * | 2007-01-25 | 2008-01-30 | 青岛双星数控锻压机械有限公司 | Eyelet punching flanging composite mold |
| JP5339031B2 (en) * | 2008-04-25 | 2013-11-13 | 日立オートモティブシステムズ株式会社 | Two-member joining method and two-member joined body |
| CN203448555U (en) * | 2013-08-28 | 2014-02-26 | 上海众力汽车部件有限公司 | Tool clamp capable of riveting at upper and lower parts simultaneously for bush outer pipe |
| CN105171647A (en) * | 2015-07-29 | 2015-12-23 | 重庆山青机械制造有限公司 | Clamp for pressing rivet of ball sealing bearing and oil sealing piece in gear shifting box |
| CN205806310U (en) * | 2016-06-01 | 2016-12-14 | 胡国衡 | A kind of hydraulic bjuffer |
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| CN108213908A (en) | 2018-06-29 |
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