CN114193090A - Processing technology for opening of double-conical-surface expansion sleeve - Google Patents
Processing technology for opening of double-conical-surface expansion sleeve Download PDFInfo
- Publication number
- CN114193090A CN114193090A CN202111415450.3A CN202111415450A CN114193090A CN 114193090 A CN114193090 A CN 114193090A CN 202111415450 A CN202111415450 A CN 202111415450A CN 114193090 A CN114193090 A CN 114193090A
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- China
- Prior art keywords
- expansion sleeve
- sleeve
- conical
- double
- semicircular
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- 238000005516 engineering process Methods 0.000 title abstract description 9
- 230000001788 irregular Effects 0.000 claims abstract description 5
- 238000003754 machining Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention discloses a processing technology of a double-conical-surface expansion sleeve notch, which comprises the following steps of 1), firstly, forming a stress groove on an expansion sleeve along the radial direction; 2) then, an inner sleeve with a stress groove is placed on the base, and the two semicircular sleeves 2 are placed in the holes of the expansion sleeve; 3) aligning the pressure head to the conical surface of the semicircular sleeve to force the semicircular sleeve to move radially; 4) and finally, applying force to the expansion sleeve from the inside, so that the expansion sleeve is broken at the stress groove with concentrated stress to form an irregular section.
Description
Technical Field
The invention relates to the field of new energy automobiles, in particular to a processing technology of a double-conical-surface expansion sleeve notch.
Background
The expansion sleeve of the expansion type flange is generally provided with a notch in the bus direction, namely, on the basis of a complete revolution surface, a part of the expansion sleeve is removed in the bus direction by methods of milling, pulling, linear cutting and the like, so that the expansion sleeve becomes incomplete, the expansion sleeve can deform to a certain extent after being tightened, the joint degree of a working surface is affected, and meanwhile, the processing method is troublesome.
Disclosure of Invention
The invention aims to solve the technical problem of providing a processing technology for machining the opening of the double-conical-surface expansion sleeve, which has no material loss, ensures that the fracture part can be completely embedded after the expansion sleeve is tightened, the expansion sleeve is not easy to deform, the working surface is easier to ensure, and the machining process is easier to realize and quicker.
In order to solve the problems, the invention adopts the following technical scheme:
a double-conical-surface expansion sleeve notch machining process comprises the following steps:
1) firstly, arranging a stress groove on the expansion sleeve along the radial direction;
2) then, the inner sleeve with the stress groove is placed on the base, and the two semicircular sleeves are placed in the holes of the inner sleeve;
3) aligning the pressure head to the conical surface of the semicircular sleeve to force the semicircular sleeve to move radially
4) Finally, force is applied to the inner sleeve from the inside, and as a result, the inner sleeve is broken at the stress groove with concentrated stress, and an irregular section is formed.
The invention has the beneficial effects that: according to the processing technology for the opening of the double-conical-surface expansion sleeve, the expansion sleeve is subjected to expansion fracture processing to form a discontinuous and irregular section, the material loss is avoided although the section is discontinuous along the bus direction, and after the expansion sleeve is tightened, the broken part can be completely embedded, the expansion sleeve is not easy to deform, the working surface is easier to guarantee, and compared with other machining methods, the processing process is easier to realize and faster; simultaneously, after the expansion sleeve is matched with the double-conical-surface main body, the expansion sleeve is relatively complete, so that no distortion is generated in the main body, the conical surfaces can be matched with more binding surfaces, the torque transmission of the expansion type flange is increased, and the requirement of large torque of a new energy bus is met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be made in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a double-cone expansion sleeve notch processing technology in the invention;
FIG. 2 is a schematic diagram of the matching of the expansion sleeve and the main body after the expansion fracture processing in the double-cone expansion sleeve notch processing technology of the invention.
In FIGS. 1-2: 1-pressure head, 2-sleeve, 3-expansion sleeve, 4-base, 5-stress groove and 6-flange main body.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention and to clearly and unequivocally define the scope of the present invention.
Referring to fig. 1 and 2, a double-conical-surface expansion sleeve notch processing technology comprises the following steps:
1) firstly, forming a stress groove 5 on the expansion sleeve 3 along the radial direction;
2) then, an inner sleeve with a stress groove 5 is arranged on the base 4, and the two semicircular sleeves 2 are arranged in the holes of the expansion sleeve 3;
3) aligning the pressure head 1 to the conical surface of the semicircular sleeve 2 to force the semicircular sleeve 2 to move radially;
4) finally, a force is applied to the expansion sleeve 3 from the inside, and as a result, the expansion sleeve 3 is broken at the stress groove 5 where the stress is concentrated, and an irregular cross section is formed.
In this embodiment, the expansion sleeve 3 must be processed with a stress groove 5 in advance, and the stress groove 5 can be formed during casting or can be formed by cutting during subsequent machining, as shown in fig. 2, which is a schematic diagram of the expansion sleeve 3 and the flange body after expansion and fracture processing, wherein A, B, C, D is the abutting surface between the expansion sleeve 3 and the flange body 6 respectively.
The above description is only for the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be covered by the protection scope of the present invention.
Claims (1)
1. A double-conical-surface expansion sleeve notch machining process is characterized by comprising the following steps:
1) firstly, arranging a stress groove on the expansion sleeve along the radial direction;
2) then, an inner sleeve with a stress groove is placed on the base, and the two semicircular sleeves are placed in the holes of the expansion sleeve;
3) aligning the pressure head to the conical surface of the semicircular sleeve to force the semicircular sleeve to move radially;
4) finally, force is applied to the expansion sleeve from the inside, and as a result, the expansion sleeve is broken at the stress groove with concentrated stress, and an irregular section is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111415450.3A CN114193090A (en) | 2021-11-25 | 2021-11-25 | Processing technology for opening of double-conical-surface expansion sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111415450.3A CN114193090A (en) | 2021-11-25 | 2021-11-25 | Processing technology for opening of double-conical-surface expansion sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114193090A true CN114193090A (en) | 2022-03-18 |
Family
ID=80648995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111415450.3A Pending CN114193090A (en) | 2021-11-25 | 2021-11-25 | Processing technology for opening of double-conical-surface expansion sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114193090A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6474526B1 (en) * | 1997-08-01 | 2002-11-05 | Alfing Kessler Sondermaschinen Gmbh | Method for fracture-separating an annular piece |
| CN201106621Y (en) * | 2007-08-30 | 2008-08-27 | 奇瑞汽车股份有限公司 | Bulging-off stress groove of engine connecting rod |
| CN101387314A (en) * | 2007-09-12 | 2009-03-18 | 黄石东贝电器股份有限公司 | Exploding jointed connecting rod and method for manufacturing same |
| JP2009184064A (en) * | 2008-02-06 | 2009-08-20 | Mazda Motor Corp | Fracture method of metal member and fracture device of metal member |
| CN102840217A (en) * | 2011-06-24 | 2012-12-26 | 铃木株式会社 | Connecting rod fracture splitting method and apparatus therefor |
| JP2014142004A (en) * | 2013-01-23 | 2014-08-07 | Univ Of Hyogo | Method of processing aluminum alloy die cast split-type connecting rod |
| CN109058280A (en) * | 2018-09-29 | 2018-12-21 | 西安爱生技术集团公司 | A kind of quenched steel alloy of small-sized piston engine rises cracking connecting rod and process for making |
-
2021
- 2021-11-25 CN CN202111415450.3A patent/CN114193090A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6474526B1 (en) * | 1997-08-01 | 2002-11-05 | Alfing Kessler Sondermaschinen Gmbh | Method for fracture-separating an annular piece |
| CN201106621Y (en) * | 2007-08-30 | 2008-08-27 | 奇瑞汽车股份有限公司 | Bulging-off stress groove of engine connecting rod |
| CN101387314A (en) * | 2007-09-12 | 2009-03-18 | 黄石东贝电器股份有限公司 | Exploding jointed connecting rod and method for manufacturing same |
| JP2009184064A (en) * | 2008-02-06 | 2009-08-20 | Mazda Motor Corp | Fracture method of metal member and fracture device of metal member |
| CN102840217A (en) * | 2011-06-24 | 2012-12-26 | 铃木株式会社 | Connecting rod fracture splitting method and apparatus therefor |
| JP2014142004A (en) * | 2013-01-23 | 2014-08-07 | Univ Of Hyogo | Method of processing aluminum alloy die cast split-type connecting rod |
| CN109058280A (en) * | 2018-09-29 | 2018-12-21 | 西安爱生技术集团公司 | A kind of quenched steel alloy of small-sized piston engine rises cracking connecting rod and process for making |
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