CN103495617B - A kind of change wall thickness cylinder part Roll-extrusion forming device - Google Patents
A kind of change wall thickness cylinder part Roll-extrusion forming device Download PDFInfo
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- CN103495617B CN103495617B CN201310440820.8A CN201310440820A CN103495617B CN 103495617 B CN103495617 B CN 103495617B CN 201310440820 A CN201310440820 A CN 201310440820A CN 103495617 B CN103495617 B CN 103495617B
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- gun
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- tooth bar
- roll
- piston
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention belongs to precision metal plastic forming technology, particularly relate to a kind of change wall thickness cylinder part Roll-extrusion forming device.A kind of become wall thickness cylinder part Roll-extrusion forming device, this device is made up of upper and lower two-layer Gun Ji mechanism, every layer include an active roll, with two driven running rollers, resetting means being engaged with active roll by bevel gear; Resetting means comprises cylinder, tooth bar, piston, and in same Ceng Gunji mechanism, the reseting gear on active roll engages with tooth bar, and tooth bar connects piston, and piston is arranged on cylinder.Apparatus of the present invention encapsulate two-layer Gun Ji mechanism, can once-forming go out the change wall thickness cylindrical part of non-trimming, quick, the Accurate Shaping of this part can be realized.
Description
Technical field
The invention belongs to precision metal plastic forming technology, particularly relate to a kind of change wall thickness cylinder part Roll-extrusion forming device.
Background technology
Become its material of wall thickness cylindrical part and mostly adopt high strength alloy steel, traditional mode of production adopts " die mould-punching-extend " technique to form straight wall cylindrical shell, and then machine cut processes different wall thickness, stock utilization extremely low (40%), cutter consumption is large, and production cost is high.In addition, the method for shear spinning also can be shaped this kind of part, but it is many to there is the number of spinning times, becomes the product cycle long, production efficiency is lower, spinning rear cylinder body is from shortcomings such as the plug demoulding are difficult.Therefore the requirement of this product multi items of this part, production in enormous quantities cannot be met.
Current best bet is to becoming the crowded forming technique of wall thickness cylindrical part employing roller, being realized wall thickness reduction and the axial elongation of cylindrical shell, realize material-saving, energy-conservation and High-efficient Production by the roll-in becoming internal diameter running roller.For improving the running roller life-span in roller extruding process, need to offer flash gutters, but blank is generally high strength alloy steel, the overlap of generation adopts the method for machining to be difficult to remove.Secondary roller squeeze method can remove overlap, but roller squeeze be configured as thermal deformation, overlap spot temperature reduce very fast, according to the method for twice shaping, not only affect production efficiency, and can because deformation temperature is inadequate, cause overlap position to be difficult to remove, even produce the defects such as folding, fracture.
Summary of the invention
Technical problem to be solved by this invention is: how to provide a kind of and become wall thickness cylinder part Roll-extrusion forming device, makes part can one-shot forming, and production efficiency is high, defect is few.
The technical solution adopted in the present invention is: a kind of change wall thickness cylinder part Roll-extrusion forming device, this device is made up of upper and lower two-layer Gun Ji mechanism, every layer include an active roll, with two driven running rollers, resetting means being engaged with active roll by bevel gear; Resetting means comprises cylinder, tooth bar, piston, and in same Ceng Gunji mechanism, the reseting gear on active roll engages with tooth bar, and tooth bar connects piston, and piston is arranged on cylinder; Each running roller circumferential surface of two-layer Gun Ji mechanism offers the die cavity corresponding with becoming wall thickness cylindrical shell profile, upper strata Gun Ji mechanism all offers a flash gutters in the every closed location between two of running roller, upper strata Gun Ji mechanism between two closed location has three flash gutters altogether, and the closed location between two after Gun Ji mechanism of lower floor three running rollers rotate 60 degree is just to the closed location between two of upper strata Gun Ji mechanism three running rollers.
The invention has the beneficial effects as follows: apparatus of the present invention encapsulate two-layer Gun Ji mechanism, can once-forming go out the change wall thickness cylindrical part of non-trimming, quick, the Accurate Shaping of this part can be realized; Composite structure of the present invention realizes automatically accurately resetting of running roller, ensure that the continuity of production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the B-B view of Fig. 1;
Fig. 4 is resetting means schematic diagram of the present invention.
Wherein 1, frame, 2, upper strata Gun Ji mechanism, 3, Gun Ji mechanism of lower floor, 4, upper strata resetting means, 5, underlying services device, 6, upper strata running roller closed location, 7, lower floor's running roller middle part, 8, driven shaft, 9, driven running roller, 10, flash gutters, 11, driving shaft, 12, active roll, 13, bevel gear, 14, tooth bar, 15, piston, 16, cylinder, 17 reseting gears.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 3 shows, apparatus of the present invention are divided into two-layer up and down, and every layer includes running roller, frame, resetting means three parts.Its at the middle and upper levels Gun Ji mechanism offer three flash gutters in running roller closed location, every closed location between two all offers a flash gutters, the middle part of lower floor's running roller is just to the closed location (position that two running rollers intersect) of upper strata running roller, after three running rollers of Gun Ji mechanism of lower floor rotate 60 degree between two closed location just to the closed location of upper strata running roller, levels running roller upper-lower position one_to_one corresponding, the driving shaft axle of upper strata Gun Ji mechanism and the driving shaft of Gun Ji mechanism of lower floor are in same vertical plane, the active roll of upper strata Gun Ji mechanism and the active roll of Gun Ji mechanism of lower floor are in same vertical plane, the driven running roller of upper strata Gun Ji mechanism and the driven running roller of Gun Ji mechanism of lower floor are in same vertical plane between two.Push through in journey at a roller, blank continues through two-layer Gun Ji mechanism under the drive of drift.During by upper strata mechanism (upper strata Gun Ji mechanism), three running rollers are under the effect of bevel gear, and synchronous inwardly rotation realizes nipping to blank.In the process that drift drives blank to move down, utilize the rolling effect of the running roller of upper strata mechanism can realize axial compression and the radial extent of blank, the die cavity closed due to running roller is identical with the profile becoming wall thickness cylindrical part and offer flash gutters at roll gap position, so the change wall thickness cylinder part of the band overlap that can be shaped; During by mechanism of lower floor (Gun Ji mechanism of lower floor), three running rollers of Gun Ji mechanism of lower floor are just to the overlap position of blank.Due to the existence of overlap, in the process that drift drives blank to move down, crimp continues to occur.And die cavity does not change, distortion only occurs in overlap part, and such overlap is just pulled to the bottom of blank, removes the change wall thickness cylindrical part that stub bar just can obtain non-trimming.
As shown in Figure 4, upper and lower resetting means is primarily of cylinder, tooth bar, reseting gear composition.Roller pushes through in journey, three running roller synchronous passive inside rotations under the effect of bevel gear, and wherein driving wheel drives driving shaft to rotate by bearing, driving shaft drives reseting gear synchronous rotary, and causes the motion of tooth bar, promotes piston, inflate in cylinder, realize the compression of gas.After roller has squeezed, because power disappears, in cylinder, Compressed Gas promotes tooth bar counter motion, and drive reseting gear to rotate, realize the reverse rotation of driving wheel, follower is reversely rotated by bevel gear interlock simultaneously.Cylinder is in complete closed state, so the positive and negative movement travel of tooth bar is identical, can realize the accurate reset of driving wheel.Owing to adopting the connected mode of one drag two between driving wheel and follower, the journey error of transmission can be effectively reduced, realize the accurate reset of follower.
Present invention achieves the direct Plastic Forming of part, replace subsequent mechanical machining with precision plastic forming; Simplify operation and technical process, decrease subsequent mechanical process equipment, reduce production cost; Save subsequent mechanical manufacturing procedure, effectively can improve stock utilization, reach high-performance, high efficiency, low cost that curve revolution profile thick-wall cylinder is produced, multi items can be suitable for, become the new product development development of batch and batch production.
Claims (1)
1. become a wall thickness cylinder part Roll-extrusion forming device, it is characterized in that: this device is made up of upper and lower two-layer Gun Ji mechanism, every layer include an active roll, with two driven running rollers, resetting means being engaged with active roll by bevel gear; Resetting means comprises cylinder, tooth bar, piston, and in same Ceng Gunji mechanism, the reseting gear on active roll engages with tooth bar, and tooth bar connects piston, and piston is arranged on cylinder; Each running roller circumferential surface of two-layer Gun Ji mechanism offers the die cavity corresponding with becoming wall thickness cylindrical shell profile, upper strata Gun Ji mechanism all offers a flash gutters in the every closed location between two of running roller, and the closed location between two after Gun Ji mechanism of lower floor three running rollers rotate 60 degree is just to the closed location between two of upper strata Gun Ji mechanism three running rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310440820.8A CN103495617B (en) | 2013-09-25 | 2013-09-25 | A kind of change wall thickness cylinder part Roll-extrusion forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310440820.8A CN103495617B (en) | 2013-09-25 | 2013-09-25 | A kind of change wall thickness cylinder part Roll-extrusion forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103495617A CN103495617A (en) | 2014-01-08 |
| CN103495617B true CN103495617B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310440820.8A Expired - Fee Related CN103495617B (en) | 2013-09-25 | 2013-09-25 | A kind of change wall thickness cylinder part Roll-extrusion forming device |
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| CN (1) | CN103495617B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731977A (en) * | 2019-01-25 | 2019-05-10 | 中北大学 | A kind of change wall thickness cylinder part roller is extruded into shape roller spring coiling resetting device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647959B (en) * | 2019-01-25 | 2020-07-28 | 中北大学 | Method for resetting roller for roll extrusion forming of barrel part with variable wall thickness |
| CN114273520A (en) * | 2021-12-01 | 2022-04-05 | 中北大学 | Drawing forming die for cylindrical part with internal grid ribs and using method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06182404A (en) * | 1992-12-16 | 1994-07-05 | Sumitomo Metal Ind Ltd | Rolling machine for small diameter wire |
| JPH071009A (en) * | 1993-06-17 | 1995-01-06 | Sumitomo Metal Ind Ltd | Method for cold rolling tube |
| CN1764509A (en) * | 2003-03-26 | 2006-04-26 | 住友金属工业株式会社 | Method of manufacturing seamless tube. |
| CN101062511A (en) * | 2007-03-28 | 2007-10-31 | 中北大学 | Roller type cavity die extrusion molding method |
| CN102365136A (en) * | 2009-04-03 | 2012-02-29 | 住友金属工业株式会社 | Method of manufacturing ultra-thin-walled seamless metal tube by cold rolling method |
| CN202174107U (en) * | 2011-07-14 | 2012-03-28 | 中冶赛迪工程技术股份有限公司 | Three-roller pipe continuous mill |
| JP2012196706A (en) * | 2011-03-23 | 2012-10-18 | Asahi- Seiki Manufacturing Co Ltd | Wire-rod feeding device |
-
2013
- 2013-09-25 CN CN201310440820.8A patent/CN103495617B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06182404A (en) * | 1992-12-16 | 1994-07-05 | Sumitomo Metal Ind Ltd | Rolling machine for small diameter wire |
| JPH071009A (en) * | 1993-06-17 | 1995-01-06 | Sumitomo Metal Ind Ltd | Method for cold rolling tube |
| CN1764509A (en) * | 2003-03-26 | 2006-04-26 | 住友金属工业株式会社 | Method of manufacturing seamless tube. |
| CN101062511A (en) * | 2007-03-28 | 2007-10-31 | 中北大学 | Roller type cavity die extrusion molding method |
| CN102365136A (en) * | 2009-04-03 | 2012-02-29 | 住友金属工业株式会社 | Method of manufacturing ultra-thin-walled seamless metal tube by cold rolling method |
| JP2012196706A (en) * | 2011-03-23 | 2012-10-18 | Asahi- Seiki Manufacturing Co Ltd | Wire-rod feeding device |
| CN202174107U (en) * | 2011-07-14 | 2012-03-28 | 中冶赛迪工程技术股份有限公司 | Three-roller pipe continuous mill |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731977A (en) * | 2019-01-25 | 2019-05-10 | 中北大学 | A kind of change wall thickness cylinder part roller is extruded into shape roller spring coiling resetting device |
| CN109731977B (en) * | 2019-01-25 | 2020-04-17 | 中北大学 | Roller coil spring resetting device for roll extrusion forming of barrel part with variable wall thickness |
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| Publication number | Publication date |
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| CN103495617A (en) | 2014-01-08 |
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Xi Inventor after: Zhang Zhimin Inventor after: Zhang Baohong Inventor after: Xue Yong Inventor after: Meng Mo Inventor before: Zhang Zhimin Inventor before: Zhao Xi Inventor before: Zhang Baohong Inventor before: Xue Yong Inventor before: Meng Mo |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG ZHIMIN ZHAO XI ZHANG BAOHONG XUE YONG MENG MO TO: ZHAO XI ZHANG ZHIMIN ZHANG BAOHONG XUE YONG MENG MO |
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Granted publication date: 20150812 Termination date: 20160925 |