CN103128124A - Design method of aluminum extruder purpose elastic fixed extrusion pad - Google Patents
Design method of aluminum extruder purpose elastic fixed extrusion pad Download PDFInfo
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- CN103128124A CN103128124A CN2013100264448A CN201310026444A CN103128124A CN 103128124 A CN103128124 A CN 103128124A CN 2013100264448 A CN2013100264448 A CN 2013100264448A CN 201310026444 A CN201310026444 A CN 201310026444A CN 103128124 A CN103128124 A CN 103128124A
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- extrusion pad
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Abstract
The invention relates to a design method of aluminum extruder purpose elastic fixed extrusion pads. A device of the method at least comprises a padding plate (2), a draw bar (3), a pin (4), a nut (5), a fixed extrusion pad outer sleeve (6) and a fixed extrusion pad mandrel (7), and is characterized in that the draw rod (3) is arranged in the center position of the front end of an extrusion rod (1) of an aluminum extruder, outer threads are arranged on the outer surface of the side portion of the top end of the draw rod (3) which is connected with one end of the fixed extrusion pad outer sleeve (6) through the outer threads in a threaded mode, the other end of the fixed extrusion pad outer sleeve (6) is contacted with the fixed extrusion pad mandrel (7), and a contact face of the fixed extrusion pad mandrel (7) and the fixed extrusion pad outer sleeve (6) is a cone surface, and protrusions are further arranged on the end portion of the fixed extrusion pad mandrel (7) and stretch to the interior of the fixed extrusion pad outer sleeve (6). The design method of the aluminum extruder purpose elastic fixed extrusion pads can guarantee that the extrusion pads are completely opened when the device is used, and the barrel wall of an extrusion barrel is clean in an extrusion process.
Description
Technical field
The invention belongs to aluminum and its alloy extrusion machining equipment field, particularly a kind of aluminium extruding machine is with the method for designing of flexible fastening dummy block.
Background technology
In the design of existing aluminium extruding machine flexible fastening pad, how during according to hot lower full tonnage, the flexible fastening dummy block flicks the method for designing that rear external diameter equates with internal diameter of the container, the problem that this method for designing is brought is: when full tonnage extruding, dummy block flicks rear external diameter and equates with internal diameter of the container, effectively the aluminium situation, do not appear returning in the sealed extruded cylinder; But in actual aluminium extrusion production process, in the time of most of, extruding force does not reach full tonnage, thereby makes the excesssive gap of flexible fastening dummy block and internal diameter of the container, the problem of aluminium easily occurs returning.
Summary of the invention
The purpose of this invention is to provide a kind of new aluminium extruding machine method for designing of flexible fastening dummy block, in the time of can guaranteeing the equipment use, dummy block is opened fully, and in extrusion process, the recipient barrel is clean.
the technical scheme that the present invention solves its technical problem employing is: aluminium extruding machine flexible fastening dummy block method for designing, which comprises at least: backing plate, pull bar, pin, nut, fixation extrusion pad overcoat and fixation extrusion pad mandrel, it is characterized in that: the pressure ram front end center of aluminium extruding machine is pull bar, pull bar tip-end-side outer surface has external screw thread, pull bar is connected by the threaded one end of external screw thread with the fixation extrusion pad overcoat, the other end of fixation extrusion pad overcoat contacts with the fixation extrusion pad mandrel, the contact-making surface of fixation extrusion pad mandrel and fixation extrusion pad overcoat is the conical surface, the end of fixation extrusion pad mandrel also has projection and extends to the fixation extrusion pad overcoat inner.
When described fixation extrusion pad mandrel loaded 30% nominal extruding force, the external diameter of fixation extrusion pad overcoat equated at the internal diameter under operating conditions with recipient.
Described fixation extrusion pad overcoat is the column structure that the middle part has through hole, the bottom of middle through-hole is threaded with tie rod end by its internal thread, the top of middle through-hole has inwardly protruded step, and the step upper outer is the fixation extrusion pad overcoat conical surface that is horn-like opening.
The step of described fixation extrusion pad overcoat and the joining place of the conical surface have the chamfering that caves inward.
The middle part that described fixation extrusion pad mandrel is the top is screwed connection bump, the fixation extrusion pad mandrel end of connection bump outer ring is and the contacted cone structure of fixation extrusion pad overcoat, fixation extrusion pad mandrel top connection bump extends in the middle through-hole of fixation extrusion pad overcoat, and the fixation extrusion pad mandrel is connected with nut by the external screw thread of end, due to the effect of fixation extrusion pad overcoat convex step, the end of fixation extrusion pad mandrel is limited in fixation extrusion pad overcoat middle through-hole.
Also be connected with pin between described nut and fixation extrusion pad mandrel.
When described fixation extrusion pad mandrel was not received the nominal extruding force, the contact-making surface distance between fixation extrusion pad mandrel and fixation extrusion pad overcoat was 2mm.
The position that described pressure ram front end contacts with the fixation extrusion pad overcoat also is fixedly connected with backing plate.
advantage of the present invention is: this flexible fastening dummy block is under operating conditions, namely in the situation of 450 ℃, load 30% nominal extruding force on the contact-making surface of dummy block and aluminium ingot, because fixation extrusion pad mandrel and fixation extrusion pad overcoat are that the conical surface contacts, at this moment the fixation extrusion pad mandrel can be oppressed the fixation extrusion pad overcoat and made it along the circumferential direction to flick, simultaneously again because the external diameter of fixation extrusion pad overcoat equates at the internal diameter under operating conditions with recipient when 30% nominal extruding force, can effectively solve like this and occur returning the problem of aluminium because of extruding force less than full tonnage in actual production process, and when extruding force surpass full tonnage 30% the time, be subject to the restriction of stroke due to the fixation extrusion pad mandrel, this moment, the dummy block mandrel was fitted with the step surface of fixation extrusion pad overcoat, the step surface of the flexible fastening pad overcoat extruding force that the bedding core axle transmits that is squeezed, therefore the fixation extrusion pad overcoat can along the circumferential direction not flick again, thereby the phenomenon of cylinder can not occur scraping.
Description of drawings
The below is described in further detail the present invention with accompanying drawing and example.
Fig. 1 is the structural representation of this flexible fastening dummy block.
In figure: 1, pressure ram; 2, backing plate; 3, pull bar; 4, pin; 5, nut; 6, fixation extrusion pad overcoat, 7, the fixation extrusion pad mandrel.
The specific embodiment
As shown in the structural representation of this flexible fastening dummy block of Fig. 1, this flexible fastening dummy block comprises: backing plate 2, pull bar 3, pin 4, nut 5, fixation extrusion pad overcoat 6 and fixation extrusion pad mandrel 7.
The pressure ram 1 front end center of aluminium extruding machine is pull bar 3, pull bar 3 tip-end-side outer surfaces have external screw thread, pull bar 3 is connected by the threaded one end of external screw thread with fixation extrusion pad overcoat 6, the other end of fixation extrusion pad overcoat 6 contacts with fixation extrusion pad mandrel 7, fixation extrusion pad mandrel 7 is the conical surface with the contact-making surface of fixation extrusion pad overcoat 6, and the end of fixation extrusion pad mandrel 7 also has projection and extends to fixation extrusion pad overcoat 6 inside.
Draw through long-term the summary, in actual aluminium extrusion production process, in the time of most of, extruding force does not reach full tonnage, but can be below 30%, therefore hot lower when this flexible fastening dummy block is loaded 30% nominal extruding force, the external diameter of fixation extrusion pad overcoat 6 equates at the internal diameter under operating conditions with recipient.
this flexible fastening dummy block is under operating conditions, namely in the situation of 450 ℃, load 30% nominal extruding force on the contact-making surface of dummy block and aluminium ingot, because fixation extrusion pad mandrel 7 and fixation extrusion pad overcoat 6 are that the conical surface contacts, at this moment fixation extrusion pad mandrel 7 can make it along the circumferential direction to flick by compressing fixation extrusion pad overcoat 6, simultaneously again because the external diameter of fixation extrusion pad overcoat 6 equates at the internal diameter under operating conditions with recipient when 30% nominal extruding force, can effectively solve like this and occur returning the problem of aluminium because of extruding force less than full tonnage in actual production process.
Fixation extrusion pad overcoat 6 in above-described embodiment has the column structure of through hole for the middle part, the bottom of middle through-hole is connected with pull bar 3 end thread by its internal thread, the top of middle through-hole has inwardly protruded step, the step upper outer is fixation extrusion pad overcoat 6 conical surfaces that are horn-like opening, the joining place of step and the conical surface has the chamfering that caves inward, when the conical surface of fixation extrusion pad overcoat 6 was subject to 7 extruding of fixation extrusion pad mandrel, chamfering can provide certain expansive space to the conical surface.
fixation extrusion pad mandrel 7 is that the middle part on top is screwed connection bump, fixation extrusion pad mandrel 7 ends of connection bump outer ring are and the contacted cone structure of fixation extrusion pad overcoat 6, fixation extrusion pad mandrel 7 top connection bumps extend in the middle through-hole of fixation extrusion pad overcoat 6, and fixation extrusion pad mandrel 7 is connected with nut 5 by the external screw thread of end, effect due to fixation extrusion pad overcoat 6 convex steps, the end of fixation extrusion pad mandrel 7 is limited in fixation extrusion pad overcoat 6 middle through-holes, regulate contact-making surface distance between fixation extrusion pad mandrel 7 and fixation extrusion pad overcoat 6 by rotating nut 5, the extruding of namely adjusting fixation extrusion pad mandrel 7 forms, the present embodiment is 2mm.
Also be connected with pin 4 between nut 5 and fixation extrusion pad mandrel 7, after rotating nut 5 is adjusted the distance of the contact-making surface between fixation extrusion pad mandrel 7 and fixation extrusion pad overcoat 6 to the right place, at the contact-making surface tooling pin access slot of nut 5 with fixation extrusion pad mandrel 7, to sell 4 is plugged in the pin joint groove, thereby the position of restriction nut 5, prevent that nut 5 from rotating, and guarantees that nut 5 is reliable with being connected of fixation extrusion pad mandrel 7.
And when extruding force surpass full tonnage 30% the time, be subject to the restriction of stroke due to fixation extrusion pad mandrel 7, dummy block mandrel 7 is fitted with the step surface of fixation extrusion pad overcoat 6 at this moment, the step surface of flexible fastening pad overcoat 6 extruding force that bedding core axle 7 transmits that is squeezed, therefore fixation extrusion pad overcoat 6 can along the circumferential direction not flick again, thereby the phenomenon of cylinder can not occur scraping.
Wherein the position that contacts with fixation extrusion pad overcoat 6 of pressure ram 1 front end also is fixedly connected with backing plate 2; because backing plate 2 is in position between pressure ram 1 and fixation extrusion pad overcoat 6; therefore when the compression of fixation extrusion pad overcoat 6; backing plate 2 can avoid both directly to contact, and plays the effect of protection pressure ram 1.
The parts that the present embodiment is not described in detail and structure belong to well-known components and common structure or the conventional means of the industry, here not narration one by one.
Claims (8)
1. aluminium extruding machine is with flexible fastening dummy block method for designing, which comprises at least: backing plate (2), pull bar (3), pin (4), nut (5), fixation extrusion pad overcoat (6) and fixation extrusion pad mandrel (7), it is characterized in that: the pressure ram of aluminium extruding machine (1) front end center is pull bar (3), pull bar (3) tip-end-side outer surface has external screw thread, pull bar (3) is connected by the threaded one end of external screw thread with fixation extrusion pad overcoat (6), the other end of fixation extrusion pad overcoat (6) contacts with fixation extrusion pad mandrel (7), fixation extrusion pad mandrel (7) is the conical surface with the contact-making surface of fixation extrusion pad overcoat (6), the end of fixation extrusion pad mandrel (7) also has projection and extends to fixation extrusion pad overcoat (6) inside.
2. aluminium extruding machine according to claim 1 is with flexible fastening dummy block method for designing, it is characterized in that: when described fixation extrusion pad mandrel (7) loaded 30% nominal extruding force, the external diameter of fixation extrusion pad overcoat (6) equated at the internal diameter under operating conditions with recipient.
3. aluminium extruding machine according to claim 1 is with flexible fastening dummy block method for designing, it is characterized in that: described fixation extrusion pad overcoat (6) has the column structure of through hole for the middle part, the bottom of middle through-hole is connected with pull bar (3) end thread by its internal thread, the top of middle through-hole has inwardly protruded step, and the step upper outer is fixation extrusion pad overcoat (6) conical surface that is horn-like opening.
4. aluminium extruding machine according to claim 3 is with flexible fastening dummy block method for designing, and it is characterized in that: the step of described fixation extrusion pad overcoat (6) and the joining place of the conical surface have the chamfering that caves inward.
5. according to claim 1 or 3 described aluminium extruding machines are with flexible fastening dummy block methods for designing, it is characterized in that: described fixation extrusion pad mandrel (7) is that the middle part on top is screwed connection bump, fixation extrusion pad mandrel (7) end of connection bump outer ring is and the contacted cone structure of fixation extrusion pad overcoat (6), fixation extrusion pad mandrel (7) top connection bump extends in the middle through-hole of fixation extrusion pad overcoat (6), and fixation extrusion pad mandrel (7) is connected with nut (5) by the external screw thread of end, effect due to fixation extrusion pad overcoat (6) convex step, the end of fixation extrusion pad mandrel (7) is limited in fixation extrusion pad overcoat (6) middle through-hole.
6. aluminium extruding machine according to claim 5 with flexible fastening dummy block method for designing, is characterized in that: also be connected with pin (4) between described nut (5) and fixation extrusion pad mandrel (7).
7. aluminium extruding machine according to claim 1 is with flexible fastening dummy block method for designing, it is characterized in that: when described fixation extrusion pad mandrel (7) was not received the nominal extruding force, the contact-making surface distance between fixation extrusion pad mandrel (7) and fixation extrusion pad overcoat (6) was 2mm.
8. aluminium extruding machine according to claim 1 is with flexible fastening dummy block method for designing, and it is characterized in that: the position that described pressure ram (1) front end contacts with fixation extrusion pad overcoat (6) also is fixedly connected with backing plate (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310026444.8A CN103128124B (en) | 2013-01-24 | 2013-01-24 | Aluminium extruding machine flexible fastening dummy block method for designing |
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| CN201310026444.8A CN103128124B (en) | 2013-01-24 | 2013-01-24 | Aluminium extruding machine flexible fastening dummy block method for designing |
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| CN103128124A true CN103128124A (en) | 2013-06-05 |
| CN103128124B CN103128124B (en) | 2015-08-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290070A (en) * | 2021-05-14 | 2021-08-24 | 中国重型机械研究院股份公司 | Elastic fixing extrusion pad for aluminum extruder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201728238U (en) * | 2010-05-21 | 2011-02-02 | 江苏亚太轻合金科技股份有限公司 | Expanding, fixing and extruding pad for aluminum section extruder |
| CN102000714A (en) * | 2010-12-06 | 2011-04-06 | 天津锐新电子热传技术股份有限公司 | Fixed dummy block for aluminum section extruder |
| CN202097220U (en) * | 2011-05-31 | 2012-01-04 | 太原重工股份有限公司 | Fixed dummy block device for aluminium extruding machine |
| CN203108967U (en) * | 2013-01-24 | 2013-08-07 | 中国重型机械研究院股份公司 | Elastic fixing and extruding pad for aluminum extruder |
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- 2013-01-24 CN CN201310026444.8A patent/CN103128124B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201728238U (en) * | 2010-05-21 | 2011-02-02 | 江苏亚太轻合金科技股份有限公司 | Expanding, fixing and extruding pad for aluminum section extruder |
| CN102000714A (en) * | 2010-12-06 | 2011-04-06 | 天津锐新电子热传技术股份有限公司 | Fixed dummy block for aluminum section extruder |
| CN202097220U (en) * | 2011-05-31 | 2012-01-04 | 太原重工股份有限公司 | Fixed dummy block device for aluminium extruding machine |
| CN203108967U (en) * | 2013-01-24 | 2013-08-07 | 中国重型机械研究院股份公司 | Elastic fixing and extruding pad for aluminum extruder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290070A (en) * | 2021-05-14 | 2021-08-24 | 中国重型机械研究院股份公司 | Elastic fixing extrusion pad for aluminum extruder |
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| CN103128124B (en) | 2015-08-19 |
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