CN210450291U - Hexagonal pipe rolling structure - Google Patents
Hexagonal pipe rolling structure Download PDFInfo
- Publication number
- CN210450291U CN210450291U CN201921347990.0U CN201921347990U CN210450291U CN 210450291 U CN210450291 U CN 210450291U CN 201921347990 U CN201921347990 U CN 201921347990U CN 210450291 U CN210450291 U CN 210450291U
- Authority
- CN
- China
- Prior art keywords
- section
- arc section
- rolling
- circular arc
- rolling structure
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The utility model discloses a hexagonal pipe rolling structure, including roll and slide, the rolling pass is enclosed by the groove of rolling of three roll and is closed and form its characterized in that: the section profile of the rolling groove comprises a first arc section, two sides of the first arc section are connected with symmetrical straight line sections, and the straight line section close to one end of the first arc section is tangent to the first arc section; the top of slide is equipped with the spout, and the slide top of spout both sides is equipped with the top plane that is formed by slope section, first horizontal segment, deformation section and feeding gyration section connect gradually, feeding gyration section includes interconnect' S second circular arc section and third circular arc section, is the S-shaped setting between second circular arc section and the third circular arc section. The utility model has the characteristics of rolling stability is good, rolling precision is high.
Description
Technical Field
The utility model relates to a roll pass and slide, especially a hexagonal pipe rolling structure.
Background
At present, hexagonal tube blanks are used as raw materials in a cold rolling method for hexagonal tubes, a plurality of rollers surround the hexagonal tube blanks to form a regular hexagonal hole pattern structure, then the roller hole patterns roll on the top surface of a slideway, and the change of a cavity from large to small is realized through the height change of the top surface of the slideway, so that the rolling of the hexagonal tubes is completed. However, because the feeding and rotating sections of the existing slide way are all straight sections or single-section circular arc sections, the design length of the feeding and rotating sections needs to be lengthened in order to ensure smooth feeding and rotating of the tube blank and smooth rolling of the roller on the top surface of the slide way in the rolling process, so that the length of a deformed section is shortened, the deformation of the hexagonal tube is concentrated in the rolling process, and the problem that the tube cannot be normally rolled out or is cracked in the rolling process is caused. In addition, the slideway with the structure can cause the reduction of the outer diameter precision of the hexagonal pipe during rolling, and is accompanied with rolling defects such as metal adhesion, dent and the like on the surface of the pipe, thereby influencing the finished product quality of the hexagonal pipe. Therefore, the conventional rolling structure for hexagonal pipes has the problems of poor rolling stability and low rolling precision.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hexagonal pipe rolling structure. It has the characteristics of good rolling stability and high rolling precision.
The technical scheme of the utility model: the utility model provides a hexagonal tube rolling structure, includes roll and slide, the rolling pass is enclosed by the grooving of three rolls and is formed, and its characteristics are: the section profile of the rolling groove comprises a first arc section, two sides of the first arc section are connected with symmetrical straight line sections, and the straight line section close to one end of the first arc section is tangent to the first arc section; the top of slide is equipped with the spout, and the slide top of spout both sides is equipped with the top plane that is formed by slope section, first horizontal segment, deformation section and feeding gyration section connect gradually, feeding gyration section includes interconnect' S second circular arc section and third circular arc section, is the S-shaped setting between second circular arc section and the third circular arc section.
In the hexagonal tube rolling structure, one end of the second arc section is connected with the deformation section through the transition section, and a second horizontal section is arranged at the end of the third arc section.
In the hexagonal tube rolling structure, the shape of the transition section is arc, and the deformation section, the transition section, the second arc section, the third arc section and the second horizontal section are sequentially tangent.
In the hexagonal tube rolling structure, the radius of the second arc segment is 200 and 250mm, and the horizontal length is 30 mm; the radius of the third arc section is 100-150mm, and the horizontal length is 50 mm; the radius of the transition section is 100 mm.
In the above hexagonal tube rolling structure, the taper of the inclined section is 2 °, and the taper of the deformed section is 0.5 °.
In the hexagonal tube rolling structure, the largest circle in the roll pass is used as a base circle, the center of the base circle is used as a rolling center, and the circle where the first arc section is located is an eccentric circle with the base circle eccentric downwards.
In the rolled structure of the hexagonal tube, the included angle between the straight line sections is 120 °.
Compared with the prior art, the feeding rotary section formed by connecting the second arc section and the third arc section can shorten the horizontal length required by the feeding rotary section under the condition of ensuring the normal rotation of the roller, thereby relieving the centralized deformation of the tube blank by prolonging the deformation section and improving the rolling stability of the utility model; the size precision of the hexagonal tube after rolling can be effectively improved after the deformation section is prolonged, the rolling defects are reduced, and the rolling precision of the hexagonal tube rolling mill is further improved; through the first arc section on the rolling groove, the elastic deformation of the rolling groove in the rolling process can be effectively reduced, so that the rolling stability of the roller is further improved, and the rolling defect of a hexagonal pipe is avoided.
In addition, the rolling stability of the utility model can effectively improve the rolling efficiency of the hexagonal tube after being improved, so that the rolling feed amount of the tube blank reaches 4 mm/time; through the precision optimization to deformation section and slope section, can also make the hexagonal pipe reach within 0.05mm to the distance precision after rolling, and the finish is superior to Ra1.6 mu m, has further improved the utility model discloses a rolling precision. Therefore, the utility model has the characteristics of rolling stability is good, rolling precision is high.
Drawings
FIG. 1 is a front view of a runner and a roll;
figure 2 is a cross-sectional view of the groove.
The labels in the figures are: 1-slideway, 2-rolling groove, 3-first arc section, 4-straight section, 5-inclined section, 6-first horizontal section, 7-deformation section, 8-second arc section, 9-third arc section, 10-transition section and 11-second horizontal section.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Examples are given. A hexagonal pipe rolling structure is shown in figure 1 and comprises rollers and a slideway 1, wherein a rolling pass is formed by enclosing rolling grooves 2 of three rollers, the section profile of each rolling groove 2 comprises a first arc section 3, two sides of each first arc section 3 are connected with symmetrical straight sections 4, and the straight sections 4 close to one end of each first arc section 3 are tangent to the first arc sections 3; the top of slide 1 is equipped with the spout, and the slide top of spout both sides is equipped with the top plane that forms by slope section 5, first horizontal segment 6, deformation section 7 and the gyration section of sending in connect gradually, and slope section 5 and deformation section 7 are respectively along keeping away from 6 directions downtilts of first horizontal segment, the gyration section of sending in includes interconnect' S second circular arc section 8 and third circular arc section 9 in proper order, is the S-shaped setting (be the circular arc direction of second circular arc section 8 and third circular arc section is opposite from top to bottom) between second circular arc section 8 and the third circular arc section 9.
One end of the second arc section 8 is connected with the deformation section 7 through a transition section 10, and the end part of the third arc section 9 is provided with a second horizontal section 11.
The shape of the transition section 10 is arc-shaped, and the deformation section 7, the transition section 10, the second arc section 8, the third arc section 9 and the second horizontal section 11 are sequentially tangent.
The radius of the second arc section 8 is 200 mm and 250mm, and the horizontal length is 30 mm; the radius of the third arc section 9 is 100-150mm, and the horizontal length is 50 mm; the radius of the transition section 10 is 100 mm.
The taper of the inclined section 5 is 2 degrees, and the taper of the deformation section 7 is 0.5 degrees.
The largest circle in the roll pass is taken as a base circle, the center of the base circle is taken as a rolling center, and the circle where the first arc section 3 is located is an eccentric circle with the base circle eccentric downwards.
The included angle between the straight line segments 4 is 120 degrees.
The utility model discloses a theory of operation: in one rolling cycle, the roller enters from the straight line section 11 and rolls along the third circular arc section 9, the second circular arc section 8 and the transition section 10 in sequence. When the roller rolls to the joint of the second arc section 8 and the transition section 10, the pipe blank completes the rotary feeding work; when the roller enters the transition section 10, the rolling groove of the roller is contacted with the tube blank, and in the subsequent rolling process, the transition section 10, the deformation section 7, the first horizontal section 6 and the inclined section 5 sequentially drive the hexagonal hole pattern formed by enclosing the rolling groove to roll the tube blank in the process of gradually reducing. When the roller moves to the end of the inclined section 5, the rolling groove is separated from the contact of the tube blank, and then the roller moves reversely along the slideway 1 to the initial position, and the hexagonal tube is rolled in one cycle. The roll is at rolling in-process, through the feeding gyration section that is the S type and connects and form by second circular arc section 8 and third circular arc section 9, can reduce its required horizontal length when guaranteeing the roll gyration effect to make the slide can effectively prolong the length of deformation section 7 and reduce the tapering, make the roll can disperse the deformation effect that causes the hexagonal pipe when rolling, improve the stability of hexagonal pipe when rolling and the roughness and the size precision after the rolling. The rolling groove can further slow down the deformation of the tube blank through the first arc section 3 during rolling, so that the rolling stability of the hexagonal tube is improved. The utility model discloses a rolling stability and rolling precision can also accelerate the rolling efficiency to the pipe after improving, make the feed volume of pipe can reach 4 mm/time.
Claims (7)
1. The utility model provides a hexagonal tube rolling structure, includes roll and slide (1), the pass of rolling structure is enclosed by groove (2) of three roll and is closed its characterized in that: the section profile of the rolling groove (2) comprises a first arc section (3), two sides of the first arc section (3) are connected with symmetrical straight line sections (4), and the straight line section (4) close to one end of the first arc section (3) is tangent to the first arc section (3); the top of slide (1) is equipped with the spout, and the slide top of spout both sides is equipped with the top plane that is formed by slope section (5), first horizontal segment (6), deformation section (7) and feeding gyration section connect gradually, the feeding gyration section includes interconnect' S second circular arc section (8) and third circular arc section (9), is the S-shaped setting between second circular arc section (8) and third circular arc section (9).
2. A hexagonal tube rolling structure according to claim 1, wherein: one end of the second circular arc section (8) is connected with the deformation section (7) through the transition section (10), and the end part of the third circular arc section (9) is provided with a second horizontal section (11).
3. A hexagonal tube rolling structure according to claim 2, wherein: the arc of the appearance of changeover portion (10), it is tangent in proper order between deformation section (7), changeover portion (10), second circular arc section (8), third circular arc section (9) and second horizontal segment (11).
4. A hexagonal tube rolling structure according to claim 3, wherein: the radius of the second arc section (8) is 200-250mm, and the horizontal length is 30 mm; the radius of the third arc section (9) is 100-150mm, and the horizontal length is 50 mm; the radius of the transition section (10) is 100 mm.
5. A hexagonal tube rolling structure according to claim 1, wherein: the taper of the inclined section (5) is 2 degrees, and the taper of the deformation section (7) is 0.5 degrees.
6. A hexagonal tube rolling structure according to claim 1, wherein: the largest circle in the roll pass is used as a base circle, the center of the base circle is used as a rolling center, and the circle where the first arc section (3) is located is an eccentric circle with the base circle eccentric downwards.
7. A hexagonal tube rolling structure according to claim 1, wherein: the included angle between the straight line segments (4) is 120 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921347990.0U CN210450291U (en) | 2019-08-20 | 2019-08-20 | Hexagonal pipe rolling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921347990.0U CN210450291U (en) | 2019-08-20 | 2019-08-20 | Hexagonal pipe rolling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210450291U true CN210450291U (en) | 2020-05-05 |
Family
ID=70452115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921347990.0U Active CN210450291U (en) | 2019-08-20 | 2019-08-20 | Hexagonal pipe rolling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210450291U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692065A (en) * | 2020-12-08 | 2021-04-23 | 江苏银环精密钢管有限公司 | High-strength thin-wall stainless steel hexagonal seamless tube and manufacturing method thereof |
| CN113953326A (en) * | 2021-11-05 | 2022-01-21 | 浙江嘉翔精密机械技术有限公司 | Mechanism for rolling high-precision special-shaped tube |
-
2019
- 2019-08-20 CN CN201921347990.0U patent/CN210450291U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112692065A (en) * | 2020-12-08 | 2021-04-23 | 江苏银环精密钢管有限公司 | High-strength thin-wall stainless steel hexagonal seamless tube and manufacturing method thereof |
| CN113953326A (en) * | 2021-11-05 | 2022-01-21 | 浙江嘉翔精密机械技术有限公司 | Mechanism for rolling high-precision special-shaped tube |
| CN113953326B (en) * | 2021-11-05 | 2024-05-07 | 浙江嘉翔精密机械技术有限公司 | High-precision mechanism for rolling special-shaped tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210450291U (en) | Hexagonal pipe rolling structure | |
| CN104339124A (en) | Multi-curvature forming method for stainless steel cylinder | |
| CN110102575A (en) | A kind of two roller flexibility oblique milling forming device of axial workpiece and method | |
| WO2022134492A1 (en) | Cold roll forming method for special-shaped rod having mounting grooves | |
| CN207188564U (en) | A kind of spinning contour roll forming composite structure for being used to there is inner tube of a tyre rim contour to shape | |
| CN104707865A (en) | Anode tin ball inclined rolling forming device and method | |
| CN106238609A (en) | A kind of manufacture method of flat spiral coil pipe | |
| CN105014333A (en) | Device and method for manufacturing rolling molding composite helical fin tube | |
| CN216324178U (en) | Mechanism for rolling high-precision special pipe | |
| CN102172627B (en) | Composite insulator hardware helical groove skew rolling roll groove design method | |
| CN1242859C (en) | Screw hole type skew rolling forming method at room temperature for anode phosphor-copper | |
| CN101456031A (en) | Pass structure optimization method of roller pass system | |
| CN113953326B (en) | High-precision mechanism for rolling special-shaped tube | |
| CN104400325A (en) | Technique for processing bearing ring by steel tube hot-rolling and precise cold-rolling | |
| CN106424141B (en) | A kind of shock absorber part neck bush temperature rolling shaping method and its mold | |
| CN210280187U (en) | Rolling plug for hexagonal pipe | |
| CN213052560U (en) | Conical bearing ring forging die | |
| CN213436923U (en) | Forming die for bidirectional eccentric shaft | |
| CN211866182U (en) | Pass system for rolling titanium and titanium alloy sectional materials with hexagonal sections | |
| CN100408223C (en) | Roller type wedge cross-rolling process of shaping eccentric stepped shaft | |
| CN2899988Y (en) | Three roller planet rolling mill roller | |
| CN1301161C (en) | Precise cold skew rolling forming method for rockbolt | |
| CN100389900C (en) | Wedge cross-rolling two cycle roll forming method for automobile half-shaft blank | |
| CN218611022U (en) | Roller structure for ribbed seamless pipe | |
| CN1208148C (en) | Precise diagonel rolling method for drill body blank of drill chuck |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |