CN201618811U - Pipe expanding device - Google Patents
Pipe expanding device Download PDFInfo
- Publication number
- CN201618811U CN201618811U CN2009202782436U CN200920278243U CN201618811U CN 201618811 U CN201618811 U CN 201618811U CN 2009202782436 U CN2009202782436 U CN 2009202782436U CN 200920278243 U CN200920278243 U CN 200920278243U CN 201618811 U CN201618811 U CN 201618811U
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- CN
- China
- Prior art keywords
- mandrel
- nut
- connector
- conical
- pipe expanding
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- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of the mechanical processing, and relates to a pipe expanding device, and in particular to a pipe expanding device for a mandrel of a combination-type camshaft. A mandrel fixing mechanism consisting of a support A and a support B, a pipe expanding mechanism comprising a nut, a conical puller, a pull rod, a hoop and a connection nut with thread, a hydraulic mechanism comprising a piston rod head and an oil cylinder as well as a protection cover and a guide rail are sequentially installed on a machine body of the pipe expanding device. A mandrel is arranged on the fixing mechanism, a pull rod passes through the mandrel, the conical puller is fixed on the tail part of the pull rod through the nut, the head part of the pull rod is fixed on the piston rod head through the hoop and the connection nut with thread, and the conical puller is drawn by the pull rod to pass through the mandrel after the device is opened. Since the outer diameter of the conical puller is more than the inner diameter of the mandrel, the pipe expansion is realized. The pipe expanding device has small size, simple structure and easy operation, can realize the pipe expanding installation of the combination-type camshaft, and can ensure the close connection between the components such as a cam and the mandrel.
Description
Technical field:
The utility model belongs to the Machining Technology field, relates to a kind of mandrel (a kind of hollow thin-wall steel pipe) expander equipment of expander equipment, particularly assembled camshaft.
Technical background:
Camshaft is one of automobile engine five big cores, and traditional camshaft mainly is that casting or forge processes, and makes it in lightness and be reduced to this aspect difficulty new breakthrough is arranged.Assembled camshaft is the inexorable trend of camshaft future development because little, the advantages such as processing cost is low, reasonable utilization of materials of quality more and more have been subjected to insider's attention.In the forming method of assembled camshaft, mechanical type expander advantage comparatively obviously and is widely adopted, but still exist equipment volume bigger at present, complex structure, shortcoming such as technology is loaded down with trivial details.
The utility model content:
The utility model provides a kind of volume less, simple in structure, and the mechanical expander equipment of easy operating is used for the installation of assembled camshaft, can guarantee closely to be connected between cam and the mandrel (a kind of hollow thin-wall steel pipe).
A kind of expander equipment is by forming with lower member: lathe bed, piston rod head, connection screw, pull bar, block, nut, bearing one, T type nut, bearing two, conical pull head, connector one, oil cylinder, the guide rail of band guard shield, connector two, connector three, clip.Connector one comprises hex bolts and nut and packing ring, and connector two comprises that hex bolts and bullet level up and nut, and connector three comprises that hex nut and bullet level up pad.
Wherein bearing one is used for fixed central spindle with bearing two, is installed on lathe bed by T type nut, connector two, connector three; Oil cylinder is installed on lathe bed by connector one, connector three, and in the cylinder force direction block is installed.
Be connected with nut after pull bar passed conical pull head, power be delivered to conical pull head, to realize expander by pull bar; The pull bar other end is fixed on the piston rod head by connecting screw and clip.
Place between bearing one and the bearing two mandrel (a kind of hollow thin-wall steel pipe) fixing, pull bar is passed mandrel, with nut conical pull head is fixed on the pull bar afterbody then, rod head with clip be connected screw and be fixed on the piston rod head, by mandrel, finish expander and install by assembled camshaft by the pull bar traction for conical pull head behind the opening device.
This equipment volume is less, simple in structure, easy operating, can realize that the expander of assembled camshaft is installed, and guarantees that part such as cam is connected with the tight of mandrel.
Description of drawings:
Accompanying drawing 1 is the main TV structure schematic diagram of the utility model patent.
Among the figure: 1 lathe bed, 2 piston rod heads, 3 connect screw, 4 pull bars, 5 blocks, 6 nuts, 7 bearings one, 8T type nut, 9 bearings, two, 10 conical pull heads, 11 connectors, one, 12 oil cylinder, the guide rail of 13 band guard shields, 14 connectors, two, 15 connectors, three, 16 clips.
The specific embodiment:
With internal diameter is 15.98mm, and external diameter is that 22.01 mandrel (45# steel pipe) two ends are individually fixed in 7 bearings one and 9 bearings two, passes 10 conical pull heads again after 4 pull bars are passed mandrel, and 4 pull bar diameters are 14.00mm, and 10 conical pull head external diameters are 16.15mm.Then 6 nuts are anchored on 4 pull bar afterbodys.4 rod heads use 16 clips to be connected screw with 3 to be fixed in 2 piston rod heads.Behind the opening device, 12 oil cylinders drive 2 piston rod heads and shrink, and pulling force is delivered to 10 conical pull heads by 4 pull bars, and 10 conical pull head diameters are greater than the mandrel internal diameter, realize expander after passing mandrel.The mandrel internal diameter becomes 16.12mm behind the expander, and external diameter becomes 22.15mm.
Parts such as cam are tightly fixed on mandrel (1Cr18Ni9Ti stainless steel tube) mandrel internal diameter 18.00mm, external diameter 24.02mm.The mandrel two ends are individually fixed in 7 bearings one and 9 bearings two, pass 10 conical pull heads again after 4 pull bars are passed mandrel, 4 pull bar diameters are 14.00mm, and 10 conical pull head external diameters are 18.25mm.Then 6 nuts are anchored on 4 pull bar afterbodys.4 rod heads use 16 clips to be connected screw with 3 to be fixed in 2 piston rod heads.Behind the opening device, 12 oil cylinders drive 2 piston rod heads and shrink, and pulling force is delivered to 10 conical pull heads by 4 pull bars, and 10 conical pull head diameters are greater than the mandrel internal diameter, realize expander after passing mandrel.The mandrel internal diameter becomes 18.20mm behind the expander, and external diameter becomes 24.21mm.
Claims (1)
1. an expander equipment is characterized in that this equipment is by forming with lower member: guide rail (13), connector two (14), connector three (15), the clip (16) of lathe bed (1), piston rod head (2), connection screw (3), pull bar (4), block (5), nut (6), bearing one (7), T type nut (8), bearing two (9), conical pull head (10), connector one (11), oil cylinder (12), band guard shield; Connector one (11) comprises hex bolts and nut and packing ring, and connector two (14) comprises that hex bolts and bullet level up and nut, and connector three (15) comprises that hex nut and bullet level up pad; Bearing one (7) is installed on the lathe bed (1) by T type nut (8), connector two (14), connector three (15) with bearing two (9); Pull bar (4) one ends are worn conical pull head (10) back and are connected with nut (6), by pull bar (4) power are delivered to conical pull head (10), and pull bar (4) other end is fixed on the piston rod head (2) by connecting screw (3) and clip (16); Oil cylinder (12) is installed on the lathe bed (1) by connector one (11), connector three (15), and is subjected to force direction that block (5) is installed at oil cylinder (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202782436U CN201618811U (en) | 2009-12-23 | 2009-12-23 | Pipe expanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202782436U CN201618811U (en) | 2009-12-23 | 2009-12-23 | Pipe expanding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201618811U true CN201618811U (en) | 2010-11-03 |
Family
ID=43022269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202782436U Expired - Fee Related CN201618811U (en) | 2009-12-23 | 2009-12-23 | Pipe expanding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201618811U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581151A (en) * | 2012-02-24 | 2012-07-18 | 佛山市澜石宇航星不锈钢有限公司 | Pipe expanding machine of titanium alloy thin-wall welded pipe |
| CN106536079A (en) * | 2014-07-18 | 2017-03-22 | 杰富意钢铁株式会社 | Pipe expander |
| CN107081382A (en) * | 2017-05-24 | 2017-08-22 | 济南铸造锻压机械研究所有限公司 | Bender lower die opening adjusting apparatus |
| CN107755553A (en) * | 2016-08-22 | 2018-03-06 | 南昌海立电器有限公司 | A kind of pipe expander |
-
2009
- 2009-12-23 CN CN2009202782436U patent/CN201618811U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581151A (en) * | 2012-02-24 | 2012-07-18 | 佛山市澜石宇航星不锈钢有限公司 | Pipe expanding machine of titanium alloy thin-wall welded pipe |
| CN106536079A (en) * | 2014-07-18 | 2017-03-22 | 杰富意钢铁株式会社 | Pipe expander |
| CN107755553A (en) * | 2016-08-22 | 2018-03-06 | 南昌海立电器有限公司 | A kind of pipe expander |
| CN107081382A (en) * | 2017-05-24 | 2017-08-22 | 济南铸造锻压机械研究所有限公司 | Bender lower die opening adjusting apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20141223 |
|
| EXPY | Termination of patent right or utility model |