CN102319779A - Integral bending forming method of framework sectional material of cab of large-scale construction machine - Google Patents
Integral bending forming method of framework sectional material of cab of large-scale construction machine Download PDFInfo
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- CN102319779A CN102319779A CN201110287111A CN201110287111A CN102319779A CN 102319779 A CN102319779 A CN 102319779A CN 201110287111 A CN201110287111 A CN 201110287111A CN 201110287111 A CN201110287111 A CN 201110287111A CN 102319779 A CN102319779 A CN 102319779A
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- bending
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- scale construction
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- construction machine
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Abstract
The invention discloses an integral bending forming method of a framework sectional material of a cab of a large-scale construction machine and relates to the technical field of forming of a framework of the cab of the large-scale construction machine. A framework straight pipe is firstly pre-bent through a pipe bending machine for forming a pre-bent pipe formed by three sections of the straight pipe and two small R arcs; and then the integral bending forming is performed on the pre-bent pipe through a stretch bending machine once. The method can be operated at normal temperature, the equipment investment is low, the production process is reasonable, and the method has the following beneficial effects: the framework which is formed by integral bending forming is applied to the cab of the large-scale construction machine, thereby improving the integral rigidity of the cab and significantly increasing the safety; and the welding workload during the production process is reduced, the manufacturability of the product is improved, the production cost is saved, the production process is energy-saving and environmentally-friendly and the waste is less.
Description
Technical field
The present invention relates to a kind of forming technique field of large-scale construction equipment driver's cabin skeleton.
Background technology
The large-scale construction equipment driver's cabin is made the general steel plate press forming replacement framework section bar that adopts at present; There is the portioned product of a small amount of producer to use framework section bar, but, is difficult to integrally bending, all framework section bar is divided into two sections during manufacturer production because of the section configuration of large-scale construction equipment driver's cabin framework section bar is complicated, middle through being welded to connect.Above dual mode all exists welding labour intensity big, and the shortcoming of integral rigidity difference can not reach the requirement of engineering construction machinery ROPS and TOPS.
Summary of the invention
The objective of the invention is for the large-scale construction equipment driver's cabin framework section bar integrally bending manufacturing process of a kind of convenient production, forming is provided.
Technical scheme of the present invention is:
1) with the skeleton straight tube through bending machine respectively pre-bending make by three sections straight tubes and two pre-bending pipes that little R arc forms;
2) with stretch benders with pre-bending pipe Integratively bending forming.
The present invention can operate at normal temperatures, less equipment investment, and production technology is reasonable, and its beneficial effect is: the skeleton that integrally bending is shaped is applied on the large-scale construction equipment driver's cabin, improves the driver's cabin integral rigidity, significantly increases security; Reduce the welding job amount in the production process, improved manufacturing process and product property, practiced thrift production cost, the production process energy-saving and environmental protection, waste material is few.
Description of drawings
Fig. 1 is the sketch map of the shaping of pre-bending pipe of the present invention.
The sketch map that Fig. 2 is shaped for integrally bending of the present invention.
The specific embodiment
1, be that the bending machine pre-bending of 80～100T is made by three sections straight tubes and two pre-bending pipes that little R arc forms with large-scale construction equipment driver's cabin framework section bar straight tube through pressure; The radius of each little R arc is about 280mm; The angle that two adjacent straight tubes form is about 120 ° and 110 ° respectively, bends the back and forms pre-bending pipe as shown in Figure 1.
2, use pressure be the stretch benders of 100～120T with pre-bending pipe Integratively bending forming, middle straight tube keeps, the straight tube of both sides is bent into R3000 and R4350 respectively, bend shaping after, as shown in Figure 2.
Claims (2)
1. large-scale construction equipment driver's cabin framework section bar integrally bending manufacturing process is characterized in that comprising the steps:
1) with the skeleton straight tube through bending machine respectively pre-bending make by three sections straight tubes and two pre-bending pipes that little R arc forms;
2) with stretch benders with pre-bending pipe Integratively bending forming.
2. according to the said large-scale construction equipment driver's cabin of claim 1 framework section bar integrally bending manufacturing process, the radius that it is characterized in that said each little R arc is 280mm, and the angle that two adjacent straight tubes form is respectively 120 ° to 110 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110287111A CN102319779A (en) | 2011-09-26 | 2011-09-26 | Integral bending forming method of framework sectional material of cab of large-scale construction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110287111A CN102319779A (en) | 2011-09-26 | 2011-09-26 | Integral bending forming method of framework sectional material of cab of large-scale construction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102319779A true CN102319779A (en) | 2012-01-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110287111A Pending CN102319779A (en) | 2011-09-26 | 2011-09-26 | Integral bending forming method of framework sectional material of cab of large-scale construction machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN102319779A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438496A (en) * | 2014-10-10 | 2015-03-25 | 北京航空航天大学 | Sectional material hot stretch bending heat preservation box and temperature control system thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009012029A (en) * | 2007-07-03 | 2009-01-22 | Toyo Kensetsu Koki Kk | Bending device for reinforcing bar |
| WO2010050059A1 (en) * | 2008-10-31 | 2010-05-06 | 日軽金アクト株式会社 | Bent member manufacturing method, bumper reinforcement manufacturing method and bending apparatus, and bumper reinforcement manufacturing apparatus |
| EP2359949A1 (en) * | 2009-07-14 | 2011-08-24 | Sumitomo Metal Industries, Ltd. | Device and method for manufacturing bent member |
-
2011
- 2011-09-26 CN CN201110287111A patent/CN102319779A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009012029A (en) * | 2007-07-03 | 2009-01-22 | Toyo Kensetsu Koki Kk | Bending device for reinforcing bar |
| WO2010050059A1 (en) * | 2008-10-31 | 2010-05-06 | 日軽金アクト株式会社 | Bent member manufacturing method, bumper reinforcement manufacturing method and bending apparatus, and bumper reinforcement manufacturing apparatus |
| EP2359949A1 (en) * | 2009-07-14 | 2011-08-24 | Sumitomo Metal Industries, Ltd. | Device and method for manufacturing bent member |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438496A (en) * | 2014-10-10 | 2015-03-25 | 北京航空航天大学 | Sectional material hot stretch bending heat preservation box and temperature control system thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120118 |