CN112296113A - Vertical hot extrusion reverse extrusion quick change device - Google Patents
Vertical hot extrusion reverse extrusion quick change device Download PDFInfo
- Publication number
- CN112296113A CN112296113A CN202011114791.2A CN202011114791A CN112296113A CN 112296113 A CN112296113 A CN 112296113A CN 202011114791 A CN202011114791 A CN 202011114791A CN 112296113 A CN112296113 A CN 112296113A
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- Prior art keywords
- extrusion
- extrusion head
- head
- rod
- axial grooves
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- 238000001125 extrusion Methods 0.000 title claims abstract description 114
- 238000001192 hot extrusion Methods 0.000 title claims abstract description 16
- 230000008859 change Effects 0.000 title claims description 9
- 238000009434 installation Methods 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052802 copper Inorganic materials 0.000 abstract description 7
- 239000010949 copper Substances 0.000 abstract description 7
- 238000009749 continuous casting Methods 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/20—Making uncoated products by backward extrusion
- B21C23/205—Making products of generally elongated shape
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention discloses a vertical hot extrusion backward extrusion quick-change device, which comprises an extrusion rod, an extrusion head connected with the extrusion rod, and a female die arranged below the extrusion head and corresponding to the female die; one end of the extrusion rod is provided with a reducing circular boss, and positioning pins are symmetrically arranged in the radial direction of the reducing circular boss; the extrusion head is provided with a circular concave hole, the inner wall of the circular concave hole is radially provided with an annular groove and symmetrical axial grooves, the axial grooves and the annular groove are intersected to form a T-shaped groove, the axial grooves are inserted into the annular groove after corresponding to the axial grooves on the extrusion head through a limiting pin on a circular boss on the extrusion rod during installation, and the extrusion rod and the extrusion head form a detachable assembly by rotating the extrusion head in any direction. Therefore, through improving the connected mode of extrusion head, improved the efficiency of backward extrusion shaping in continuous casting crystallizer blank copper pipe, solved because of the problem that high temperature high pressure causes traditional threaded connection loading and unloading difficulty, greatly reduced the risk of scalding.
Description
Technical Field
The invention relates to a vertical extrusion device, in particular to a vertical hot extrusion reverse extrusion quick change device.
Background
At present, the connection mode of the extrusion head and the extrusion device adopts threaded connection. The extrusion temperature of the vertical hot extrusion reverse extrusion forming copper pipe is required to be about 800 ℃, and the vertical hot extrusion reverse extrusion forming copper pipe belongs to high-temperature operation. Because the threaded connection, the extrusion head can generate thermal deformation under the action of high temperature and pressure in the extrusion process, so that the extrusion head is difficult to mount or dismount, the hot extrusion reverse extrusion forming of replacing and repairing the extrusion head and the copper pipe cannot be guaranteed, the processing continuity is influenced, and certain danger is caused in time. Therefore, improvements and improvements in the prior art are necessary.
Disclosure of Invention
In view of the current state of the technology, the invention provides a vertical hot extrusion reverse extrusion quick change device, which has the characteristic of quick installation or disassembly and replacement and ensures the continuity of processing.
The technical solution of the invention is as follows: a vertical hot extrusion backward extrusion quick change device comprises an extrusion rod and an extrusion head connected with the extrusion rod, wherein a female die is arranged below the extrusion head; one end of the extrusion rod is provided with a reducing circular boss, and positioning pins are symmetrically arranged in the radial direction of the reducing circular boss; the extrusion head is provided with a circular concave hole, the inner wall of the circular concave hole is radially provided with an annular groove and symmetrical axial grooves, the axial grooves and the annular groove are intersected to form a T-shaped groove, the annular groove is inserted into the annular groove after a positioning pin on a circular boss on the extrusion rod corresponds to the axial groove on the extrusion head during installation, and the extrusion head is rotated in any direction to enable the extrusion rod and the extrusion head to form a detachable assembly.
In the above, the extrusion head includes an extrusion head circular sleeve, and a circular concave hole formed by a pressing block is installed at one end of the extrusion head circular sleeve and is fixedly connected with the extrusion head circular sleeve through a screw.
In the above, the positioning pin on the reducing circular boss of the extrusion rod is fixedly arranged or is connected through threads.
The invention has the beneficial effects that: the device is assembled and combined into an integrated structure by the axial concave formation and the annular groove arranged on the inner wall of the concave hole of the extrusion head and the positioning pin on the reducing circular boss of the extrusion rod, thereby facilitating the disassembly and replacement of the extrusion head. The method is applied to vertical hot extrusion reverse extrusion forming and die design of the blank copper tube of the continuous casting crystallizer, ensures the production process with high efficiency and low risk, avoids the problem of difficult assembly and disassembly of threaded connection caused by high temperature and high pressure, and greatly reduces the risk of scalding.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic sectional view a-a of fig. 1.
Detailed Description
The invention will be further explained with reference to the embodiments of the drawings.
The vertical hot extrusion backward extrusion quick change device shown in fig. 1 to fig. 2 comprises an extrusion rod mounted on a gland 2 and an extrusion head a connected with the extrusion rod, and the extrusion rod is fixedly mounted on an upper template 1 through the gland 2. The lower surfaces of the extrusion rods and the extrusion heads A are provided with female dies 10 which are fixed on a lower template 11. When the extrusion rod 3 descends, the blank upset in the female die 10 is subjected to reverse extrusion forming to form a copper tube through the extrusion head A on the extrusion rod. The hot extrusion and reverse extrusion molding of the copper pipe is finished by high-temperature operation with the extrusion temperature of 800 ℃. Therefore, the extrusion head A can generate thermal deformation under the action of high temperature and pressure, and the replacement, repair and disassembly are difficult. The technology better solves the problem. In this embodiment, the diameter-variable circular boss 4 is arranged at one end of the extrusion rod 3, and the positioning pins 5 are symmetrically arranged in the radial direction of the diameter-variable circular boss 4. The positioning pin 5 is embedded into the pin hole of the reducing circular boss 4 to be fixed in a tight fit manner or welded. And a detachable extrusion head A is arranged on the reducing circular boss 4 of the extrusion rod 3. The extrusion head A of the embodiment comprises an extrusion head round sleeve 6, wherein a round concave hole 9 formed by a pressing block 7 is arranged at one end of the extrusion head round sleeve 6 and is fixedly connected into a whole through a screw. An annular groove 8 and symmetrical axial grooves 12 are arranged on the inner wall of the extrusion head circular sleeve 6 along the radial direction, and the axial grooves 12 and the annular groove 8 are intersected to form a T-shaped groove. During installation, the positioning pin 5 on the round boss 4 on the extrusion rod 3 is inserted into the annular groove 8 corresponding to the axial groove 12 on the round sleeve 6 of the extrusion head, and the extrusion head A is rotated in any direction to enable the extrusion rod 3 and the extrusion head A to form a detachable combination body. The symmetrical plane of the extrusion head A is convenient to disassemble, and the symmetrical plane is arranged on the extrusion head A and has the function of facilitating the special calipers to clamp and rotate for disassembling. In this embodiment, the upper die plate 1 is mounted on a vertical oil press, and the lower die plate 11 and the die 10 located thereon are mounted on a station table of the vertical oil press. When the vertical oil press works, the extrusion rod 3 and the extrusion head A move from top to bottom; bear the tensile force between extrusion head A and the extrusion pole 3 during material returned, there is certain clearance this moment between pipe fitting and the extrusion head A, and the tensile force that bears is very little, can ignore. The tensile strength can be fully satisfied by the connection manner of the positioning pin 5. In addition, after the positioning pins 5 are connected, the problem that the assembly and disassembly are difficult due to threaded connection under the action of high temperature and high pressure in the prior art is solved, and the extrusion head A only needs to be rotated during disassembly to enable the axial grooves 12 on the extrusion head A to be aligned with the positioning pins 5 to be separated, so that the production efficiency is improved, the safety risk is reduced, and a solid foundation is laid for improving the productivity.
The installation mode is as follows: after the extrusion rod 3 is fixed, the axial groove 12 in the circular concave hole 9 of the extrusion head A is correspondingly inserted into the positioning pin 5 on the reducing circular boss 4 at the tail end of the extrusion rod 3 by using a forklift, the extrusion head A is rotated after the insertion, the positioning pin 5 enters the annular groove 8 in the circular concave hole 9 to complete positioning, and the extrusion is prepared by fixedly connecting the positioning pin into a whole. After the extrusion head A is repeatedly used, when hot extrusion deformation exists, the extrusion head A is held by a forklift, the symmetrical plane part of the extrusion head A is clamped by a special caliper and rotates to the position of the axial groove 12 of the positioning pin 5 on the circular concave hole 9, and the extrusion head A is dismounted and repaired.
Claims (3)
1. A vertical hot extrusion backward extrusion quick change device comprises an extrusion rod, an extrusion head connected with the extrusion rod, and a female die arranged below the extrusion head and corresponding to the female die; the extrusion device is characterized in that one end of the extrusion rod is provided with a reducing circular boss, and limiting pins are symmetrically arranged in the radial direction of the reducing circular boss; the extrusion head is provided with a circular concave hole, the inner wall of the circular concave hole is radially provided with an annular groove and symmetrical axial grooves, the axial grooves and the annular groove are intersected to form a T-shaped groove, the axial grooves are inserted into the annular groove after corresponding to the axial grooves on the extrusion head through a limiting pin on a circular boss on the extrusion rod during installation, and the extrusion rod and the extrusion head form a detachable assembly by rotating the extrusion head in any direction.
2. The vertical hot extrusion backward extrusion quick change device as claimed in claim 1, wherein the extrusion head comprises an extrusion head circular sleeve, and a circular concave hole formed by a pressing block two-body structure is arranged at one end of the extrusion head circular sleeve and is fixedly connected with the extrusion head circular sleeve through a screw.
3. The vertical hot extrusion backward extrusion quick change device as claimed in claim 1, wherein the positioning pin on the reducing circular boss of the extrusion rod is fixedly arranged or is connected through a thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011114791.2A CN112296113A (en) | 2020-10-19 | 2020-10-19 | Vertical hot extrusion reverse extrusion quick change device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011114791.2A CN112296113A (en) | 2020-10-19 | 2020-10-19 | Vertical hot extrusion reverse extrusion quick change device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112296113A true CN112296113A (en) | 2021-02-02 |
Family
ID=74327707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011114791.2A Pending CN112296113A (en) | 2020-10-19 | 2020-10-19 | Vertical hot extrusion reverse extrusion quick change device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112296113A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106396A (en) * | 2022-07-20 | 2022-09-27 | 陕西长羽航空装备股份有限公司 | Blank making device of titanium alloy deep cylinder and extrusion-rolling forming method using same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014996A (en) * | 2014-06-03 | 2014-09-03 | 重庆东轻铝合金锻造有限公司 | Aluminum alloy annular blank manufacturing method and backward extruding die |
| CN203862710U (en) * | 2014-04-29 | 2014-10-08 | 重庆东轻铝合金锻造有限公司 | Forged ring processing device |
| CN203917449U (en) * | 2014-06-26 | 2014-11-05 | 北京有色金属研究总院 | A kind of metal cylindrical member indirect-extrusion mould |
| CN105344806A (en) * | 2015-12-11 | 2016-02-24 | 天津爱田汽车部件有限公司 | Split type punch |
| CN110465555A (en) * | 2019-09-25 | 2019-11-19 | 秦皇岛瀚丰长白结晶器有限责任公司 | Fast replacing device is instead squeezed in vertical hot extrusion |
| CN210754405U (en) * | 2019-09-30 | 2020-06-16 | 无锡广捷富金属制品有限公司 | Extrusion nozzle for extruder beneficial to mounting and dismounting |
| CN211330767U (en) * | 2019-11-28 | 2020-08-25 | 嘉兴市泰新金属制品有限公司 | High efficiency aluminium bar shaping extrusion equipment |
-
2020
- 2020-10-19 CN CN202011114791.2A patent/CN112296113A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203862710U (en) * | 2014-04-29 | 2014-10-08 | 重庆东轻铝合金锻造有限公司 | Forged ring processing device |
| CN104014996A (en) * | 2014-06-03 | 2014-09-03 | 重庆东轻铝合金锻造有限公司 | Aluminum alloy annular blank manufacturing method and backward extruding die |
| CN203917449U (en) * | 2014-06-26 | 2014-11-05 | 北京有色金属研究总院 | A kind of metal cylindrical member indirect-extrusion mould |
| CN105344806A (en) * | 2015-12-11 | 2016-02-24 | 天津爱田汽车部件有限公司 | Split type punch |
| CN110465555A (en) * | 2019-09-25 | 2019-11-19 | 秦皇岛瀚丰长白结晶器有限责任公司 | Fast replacing device is instead squeezed in vertical hot extrusion |
| CN210754405U (en) * | 2019-09-30 | 2020-06-16 | 无锡广捷富金属制品有限公司 | Extrusion nozzle for extruder beneficial to mounting and dismounting |
| CN211330767U (en) * | 2019-11-28 | 2020-08-25 | 嘉兴市泰新金属制品有限公司 | High efficiency aluminium bar shaping extrusion equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106396A (en) * | 2022-07-20 | 2022-09-27 | 陕西长羽航空装备股份有限公司 | Blank making device of titanium alloy deep cylinder and extrusion-rolling forming method using same |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210202 |
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| RJ01 | Rejection of invention patent application after publication |