CN105689423A - Extrusion method for manufacturing taper sleeve - Google Patents
Extrusion method for manufacturing taper sleeve Download PDFInfo
- Publication number
- CN105689423A CN105689423A CN201610141367.4A CN201610141367A CN105689423A CN 105689423 A CN105689423 A CN 105689423A CN 201610141367 A CN201610141367 A CN 201610141367A CN 105689423 A CN105689423 A CN 105689423A
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- CN
- China
- Prior art keywords
- steel pipe
- counterdie
- mould
- tapered sleeve
- pressing method
- 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.)
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Classifications
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- 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
- B21C23/01—Extruding metal; Impact extrusion starting from material of particular form or shape, e.g. mechanically pre-treated
-
- 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
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
- B21C23/085—Making tubes
-
- 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
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/02—Removing or drawing-off work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Physical Vapour Deposition (AREA)
Abstract
The invention provides an extrusion method for manufacturing a taper sleeve. The extrusion method for manufacturing the taper sleeve comprises the following steps: downwards moving a press to press a first upper die; penetrating the upper end, which is extruded, of a first steel tube through a cavity of the first upper die from the inside of a die sleeve and extending the upper end of the first steel tube into a second steel tube; placing a second upper die on the first upper die, and downwards moving the press to extrude the upper end of the first steel tube; placing a third upper die on the second upper die, and downwards moving the press to extrude the upper end of the first steel tube; connecting the lower part of the die sleeve to a first lower die, downwards moving the press, and extruding the lower end of the first steel tube by using the first lower die; and placing a second lower die under the first lower die, and downwards moving the press to extrude the lower end of the first steel tube to obtain the taper sleeve. Extrusion procedures of the extrusion method are simple, the extrusion method is convenient to operate, and production efficiency is improved. By the extrusion method, the formed taper sleeve is high in precision, correspondingly, stresses on the extruding dies are small, and the service life is prolonged remarkably.
Description
Technical field
The invention belongs to elevators field, particularly relate to a kind of pressing method making tapered sleeve。
Background technology
Elevator is the sports equipment for carrying certain load, generally comprise the traction suspension line (or claiming traction suspension strap) of traction medium and suspension effect, when implementing, need the two ends by suspension strap or suspension line to be respectively fixed on the carrying structure member that elevator is corresponding。The fixing of head for suspension strap generally adopts wedge joint device。Through the suspension strap on tapered sleeve and voussoir mating surface, suspension strap is connected groove, and under the action of gravity of suspension strap carrier, suspension strap is clamped between wedge-shaped sleeve and voussoir。One of the Forming Quality and the intensity important element being to ensure that lift running safety of tapered sleeve。Existing cover of wedge technical process is: first, core rod is inserted in the stock of fag end cover of wedge, and the stock being inserted with the fag end cover of wedge of core rod is placed on carrier block, then, to briquetting pressure, fag end cover of wedge stock is flattened, after flattening, change core rod, and core rod is inserted in the fag end cover of wedge stock after flattening, then, stock is flattened again molding, finally, the core rod of replacing is exited。In first time flattening process, limited width due to core rod, after fag end cover of wedge stock is crushed, fag end cover of wedge inner space after flattening cannot be fully filled with by core rod, therefore, in flattening process, dual-side comes to a point so that the deformation of dual-side is big, if the deflection of dual-side is more than material limits deflection, then can there is drawing crack phenomenon, thus affecting quality and the intensity of fag end cover of wedge, it addition, also need to carry out shaping after carrying out first time flattening process, increase processing step, reduce production efficiency。
Therefore, produce the technique of tapered sleeve for reducing processing step, improve production efficiency most important。The technological operation of prior art is loaded down with trivial details, and requires higher to user operation, in order to overcome above-mentioned problems, and the preparation method that the application works out a kind of tapered sleeve, only need to utilize mould extruding steel pipe forming, use and simple to operate, greatly improve production efficiency。
Summary of the invention
For the problems referred to above, the present invention proposes a kind of pressing method making tapered sleeve, and described pressing method specifically includes following steps:
S1, being inserted upwardly in die sleeve by the first steel pipe by the lower end of die sleeve, the lower end of the first steel pipe contacts with the first push rod alignment；
S2, press move downward mould in compacting first, and the upper end of the first steel pipe is squeezed in die sleeve and passes the inner chamber of mould first stretches in the second steel pipe；
S3, placing mould on second on first on mould, press moves downward, and the upper end of the first steel pipe is squeezed and stretches on second in the second steel pipe above mould through the inner chamber of mould on second from bottom to top；
S4, placing mould on the 3rd on second above mould, press moves downward, and the motion from bottom to top that is squeezed of the upper end of the first steel pipe is stretched on the 3rd in the inner chamber of mould；
S5, being connected below the first counterdie at die sleeve, in the lower section of the first counterdie, corresponding first time mold cavity places the second steel pipe；
S6, laying down die sleeve, press moves downward, and the first steel pipe is extruded by the first counterdie, and the lower end of the first steel pipe is stretched in the second steel pipe through the first counterdie from top to bottom；
S7, placing the second counterdie in the lower section of the first counterdie, press moves downward, the first counterdie and the contact of the second counterdie, and the first steel pipe is extruded by the second counterdie, and the lower end of described first steel pipe is from top to bottom stretched in described second counterdie, obtains tapered sleeve。
Further, material returned step is also included after step S7:
S8, by mould on first, on mould and the 3rd, the upper die component of mould composition overturns with the lower mold assemblies of the first counterdie and the second counterdie composition on second, high ferro is set between the workbench below the first counterdie and upper die component etc.；
S9, placing the second push rod in the inner chamber of the second counterdie, press moves downward, and tapered sleeve is extruded by the second push rod from lower mold assemblies；
S10. again overturning upper die component and lower mold assemblies, put into the 3rd push rod on the 3rd in mould, press moves downward, and tapered sleeve is extruded by the 3rd push rod from upper die component, completes the material returned。
Further, in step S1, the first push rod is arranged with packing ring。
Further, in step S4, the first steel pipe stretch into the distance of mold cavity on the 3rd less than the 3rd on the length of mold cavity。
Further, step S5 is additionally included in mould steel tank installed above on the 3rd。
Further, in step S6, the first steel pipe stretches into the distance length less than described second steel pipe of the second steel pipe。
Further, in step S7, the distance between the first counterdie and the second counterdie is equal to the length of the second steel pipe。
Further, in step S8, the periphery of the first counterdie is fixed with contiguous block, and the high ferro such as described is to be sticked between described contiguous block and workbench。
Further, the diameter of described first steel pipe is less than the diameter of described second steel pipe。
Further, described first steel pipe and the second steel pipe are seamless steel pipe。
The pressing method making tapered sleeve of the present invention, has the advantage that
1, extrusion process of the present invention is simple, easy to operate, improves production efficiency。
2, the pressing method of the present invention, the tapered sleeve precision of shaping is high, and the corresponding subjected to stress of mould of extruding is less, and service life significantly improves。
Accompanying drawing explanation
In order to be illustrated more clearly that technical scheme, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings。
Figure 1A-1N is the forming process schematic diagram of elevator steel band tapered sleeve of the present invention；
Fig. 2 be the present invention method prepare tapered sleeve structural representation。
Wherein, mould on 1-first, 2-die sleeve, 3-the first steel pipe, 4-the first push rod, 5-packing ring, 6-cushion block, 7-the second steel pipe, mould on 8-second, mould on 9-the 3rd, 10-steel tank, 11-foundary weight, 12-the first counterdie, 13-contiguous block, 14-the second counterdie, 15-the second push rod, the high ferros such as 16-, 17-the 3rd push rod, 18-tapered sleeve。
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments。Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the premise not making creative work, broadly fall into the scope of protection of the invention。
Fig. 1 is the forming process schematic diagram of elevator steel band tapered sleeve of the present invention。The pressing method making tapered sleeve of the present invention, comprises the steps:
S1, on first mould 1 be connected below die sleeve, the first steel pipe 3 is inserted upwardly in die sleeve 2 by the lower end of die sleeve 2, the lower end of the first steel pipe with first push rod 4 alignment contact。In step S1, being arranged with packing ring 5 on the first push rod 4, the first push rod 4 is located on cushion block 6。Wherein, in one embodiment, the diameter of described first steel pipe is 45mm, and length is 200mm。In other embodiments, the size of described first steel pipe does not limit, and can be decided according to the actual requirements。
S2, the top being positioned on first by the second steel pipe 7 mould 1, press moves downward mould 1 in compacting first, and the upper end of the first steel pipe 3 is squeezed in die sleeve 2 through first 1 inner chamber of mould and stretches in the second steel pipe 7。
S3, laying down the second steel pipe 7, place mould 8 on second on first on mould 1, the top being positioned on second by the second steel pipe 7 mould 8, press moves downward, and the upper end of the first steel pipe 3 is squeezed and stretches in the second steel pipe 7 through the inner chamber of mould 8 on second from bottom to top。
S4, laying down the second steel pipe 7, place mould 9 on the 3rd on second above mould 8, press moves downward, and the motion from bottom to top that is squeezed of the upper end of the first steel pipe 3 is stretched on the 3rd in the inner chamber of mould 9。In step S4, the first steel pipe 3 stretch into the distance of mould 9 inner chamber on the 3rd less than the 3rd on the length of mould 9 inner chamber。
S5, on the 3rd mould 9 steel tank 10 installed above, be connected below the first counterdie 12 at die sleeve 2, in the lower section of the first counterdie 12, corresponding first counterdie 12 inner chamber places the second steel pipe 7。Described steel tank 10 is placed with foundary weight 11。
S6, laying down die sleeve 2, press moves downward, and the lower end of the first steel pipe 3 is extruded by the first counterdie 12, and the lower end of the first steel pipe 3 is stretched in the second steel pipe 7 through the first counterdie 12 from bottom to top。In described step S6, the first steel pipe 3 stretches into the distance length less than described second steel pipe 7 of the second steel pipe 7。
S7, lay down the second steel pipe 7, the second counterdie 14 is placed in the lower section of the first counterdie 12, press moves downward, first counterdie and 12 second counterdies 14 are contacted, press continues to move downward, the lower end of the first steel pipe 3 is extruded by the first counterdie 12, and the lower end of described first steel pipe 3 is from top to bottom stretched in described second counterdie 14, obtains tapered sleeve 18 (such as Fig. 2)。In described step S7, the distance between the first counterdie 12 and the second counterdie 14 is equal to the length of the second steel pipe。
S8, the foundary weight 11 laid down in steel tank 10, the upset of lower mold assemblies that the upper die component form mould 9 on mould 8 and the 3rd on mould on first 1, second and the first counterdie 12 and the second counterdie 14 form, the high ferro 16 such as arranges between the workbench below the first counterdie 12 and upper die component。In described step S8, the periphery of the first counterdie 12 is fixed with contiguous block 13, and the high ferro 16 such as described is to be sticked between described contiguous block 13 and workbench。
S9, placing the second push rod 15 in the inner chamber of the second counterdie 14, press moves downward, and promotes the second push rod 15, and tapered sleeve 18 is extruded downwards by described second push rod 15 from lower mold assemblies, i.e. 14 extrusion from the first counterdie 12 and the second counterdie。
S10. again overturning upper die component and lower mold assemblies, put into the 3rd push rod 17 on the 3rd in mould 9, press moves downward, and promotes the 3rd push rod 17, and tapered sleeve 18 is extruded downwards by described 3rd push rod 17 from upper die component, completes the material returned。
The diameter of described first steel pipe is less than the diameter of described second steel pipe。Described first steel pipe and the second steel pipe are seamless steel pipe。
The pressing method making tapered sleeve of the present invention, has the advantage that
1, extrusion process of the present invention is simple, easy to operate, improves production efficiency。
2, the pressing method of the present invention, the tapered sleeve precision of shaping is high, and the corresponding subjected to stress of mould of extruding is less, and service life significantly improves。
The above disclosed several preferred embodiments being only the present invention, certainly can not limit the interest field of the present invention, the equivalent variations therefore made according to the claims in the present invention with this, still belong to the scope that the present invention contains。
Claims (10)
1. the pressing method making tapered sleeve, it is characterised in that: described pressing method specifically includes following steps:
S1, being inserted upwardly in die sleeve by the first steel pipe by the lower end of die sleeve, the lower end of the first steel pipe contacts with the first push rod alignment；
S2, press move downward mould in compacting first, and the upper end of the first steel pipe is squeezed in die sleeve and passes the inner chamber of mould first stretches in the second steel pipe；
S3, placing mould on second on first on mould, press moves downward, and the upper end of the first steel pipe is squeezed and stretches on second in the second steel pipe above mould through the inner chamber of mould on second from bottom to top；
S4, placing mould on the 3rd on second above mould, press moves downward, and the motion from bottom to top that is squeezed of the upper end of the first steel pipe is stretched on the 3rd in the inner chamber of mould；
S5, being connected below the first counterdie at die sleeve, in the lower section of the first counterdie, corresponding first time mold cavity places the second steel pipe；
S6, laying down die sleeve, press moves downward, and the first steel pipe is extruded by the first counterdie, and the lower end of the first steel pipe is stretched in the second steel pipe through the first counterdie from top to bottom；
S7, placing the second counterdie in the lower section of the first counterdie, press moves downward, the first counterdie and the contact of the second counterdie, and the first steel pipe is extruded by the second counterdie, and the lower end of described first steel pipe is from top to bottom stretched in described second counterdie, obtains tapered sleeve。
2. the pressing method of making tapered sleeve according to claim 1, it is characterised in that: also include material returned step after step S7:
S8, by mould on first, on mould and the 3rd, the upper die component of mould composition overturns with the lower mold assemblies of the first counterdie and the second counterdie composition on second, high ferro is set between the workbench below the first counterdie and upper die component etc.；
S9, placing the second push rod in the inner chamber of the second counterdie, press moves downward, and tapered sleeve is extruded by the second push rod from lower mold assemblies；
S10. again overturning upper die component and lower mold assemblies, put into the 3rd push rod on the 3rd in mould, press moves downward, and tapered sleeve is extruded by the 3rd push rod from upper die component, completes the material returned。
3. the pressing method of making tapered sleeve according to claim 1, it is characterised in that: in step S1, the first push rod is arranged with packing ring。
4. according to the arbitrary described pressing method making tapered sleeve of claim 1-3, it is characterised in that: in step S4, the first steel pipe stretch into the distance of mold cavity on the 3rd less than the 3rd on the length of mold cavity。
5. according to the arbitrary described pressing method making tapered sleeve of claim 1-3, it is characterised in that: step S5 is additionally included in mould steel tank installed above on the 3rd。
6. according to the arbitrary described pressing method making tapered sleeve of claim 1-3, it is characterised in that: in step S6, the first steel pipe stretches into the distance length less than described second steel pipe of the second steel pipe。
7. the pressing method of making tapered sleeve according to claim 1, it is characterised in that: in step S7, the distance between the first counterdie and the second counterdie is equal to the length of the second steel pipe。
8. the pressing method of making tapered sleeve according to claim 2, it is characterised in that: in step S8, the periphery of the first counterdie is fixed with contiguous block, and the high ferro such as described is to be sticked between described contiguous block and workbench。
9. the pressing method of making tapered sleeve according to claim 1 and 2, it is characterised in that: the diameter of described first steel pipe is less than the diameter of described second steel pipe。
10. the pressing method of making tapered sleeve according to claim 1 and 2, it is characterised in that: described first steel pipe and the second steel pipe are seamless steel pipe。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610141367.4A CN105689423B (en) | 2016-03-11 | 2016-03-11 | A kind of pressing method for making tapered sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610141367.4A CN105689423B (en) | 2016-03-11 | 2016-03-11 | A kind of pressing method for making tapered sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105689423A true CN105689423A (en) | 2016-06-22 |
| CN105689423B CN105689423B (en) | 2017-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610141367.4A Active CN105689423B (en) | 2016-03-11 | 2016-03-11 | A kind of pressing method for making tapered sleeve |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018090309A1 (en) * | 2016-11-18 | 2018-05-24 | 南通昌荣机电有限公司 | Extrusion method for manufacturing conical bushing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5511440A (en) * | 1993-08-25 | 1996-04-30 | Nsk Ltd. | Method of manufacturing a hollow steering shaft and hollow steering shaft |
| CN1817554A (en) * | 2006-03-16 | 2006-08-16 | 钱宗富 | Directional axial conical standpipe process of motorcycle by disposable cold extruding formative machining |
| CN101712108A (en) * | 2009-11-17 | 2010-05-26 | 周安 | Method for manufacturing conical riser of direction column of motorcycle by adopting cold extrusion process |
| CN202079161U (en) * | 2011-03-14 | 2011-12-21 | 广州花都通用集团有限公司 | Mould of pigtail taper sleeve for manufacturing elevator |
| US20140102159A1 (en) * | 2012-10-12 | 2014-04-17 | Manchester Copper Products, Llc | Extrusion press die assembly |
| CN103962406A (en) * | 2014-05-05 | 2014-08-06 | 天津理工大学 | Extrusion-expansion combination mold for pipe formed by flow dividing mold |
| CN104550287A (en) * | 2014-12-11 | 2015-04-29 | 重庆正松科技服务有限公司 | Cold extrusion moulding device for tapered pipe |
-
2016
- 2016-03-11 CN CN201610141367.4A patent/CN105689423B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5511440A (en) * | 1993-08-25 | 1996-04-30 | Nsk Ltd. | Method of manufacturing a hollow steering shaft and hollow steering shaft |
| CN1817554A (en) * | 2006-03-16 | 2006-08-16 | 钱宗富 | Directional axial conical standpipe process of motorcycle by disposable cold extruding formative machining |
| CN101712108A (en) * | 2009-11-17 | 2010-05-26 | 周安 | Method for manufacturing conical riser of direction column of motorcycle by adopting cold extrusion process |
| CN202079161U (en) * | 2011-03-14 | 2011-12-21 | 广州花都通用集团有限公司 | Mould of pigtail taper sleeve for manufacturing elevator |
| US20140102159A1 (en) * | 2012-10-12 | 2014-04-17 | Manchester Copper Products, Llc | Extrusion press die assembly |
| CN103962406A (en) * | 2014-05-05 | 2014-08-06 | 天津理工大学 | Extrusion-expansion combination mold for pipe formed by flow dividing mold |
| CN104550287A (en) * | 2014-12-11 | 2015-04-29 | 重庆正松科技服务有限公司 | Cold extrusion moulding device for tapered pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018090309A1 (en) * | 2016-11-18 | 2018-05-24 | 南通昌荣机电有限公司 | Extrusion method for manufacturing conical bushing |
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| Publication number | Publication date |
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| CN105689423B (en) | 2017-08-08 |
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