CN105170813A - Three-section flaring die for automobile steering column - Google Patents
Three-section flaring die for automobile steering column Download PDFInfo
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- CN105170813A CN105170813A CN201510412908.8A CN201510412908A CN105170813A CN 105170813 A CN105170813 A CN 105170813A CN 201510412908 A CN201510412908 A CN 201510412908A CN 105170813 A CN105170813 A CN 105170813A
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Abstract
The invention discloses a three-section flaring die for an automobile steering column. The three-section flaring die comprises a die frame. The die frame comprises an upper die seat and a lower die seat which are arranged in parallel in an up-and-down spaced manner, a central spindle vertically arranged on the lower die seat, a die pressing seat which is arranged between the upper die seat and the lower die seat and is capable of reciprocating in the vertical direction, an upper die plate fixedly arranged on the lower end face of the die pressing seat, and a necking die pressed on the lower plate face of the upper die plate through a die sleeve. The three-section flaring die has the beneficial effects that the forming effect of the automobile steering column pressed by the three-section flaring die is good, deformation is not likely to occur in the die pressing process, the coaxiality of a necked opening of the automobile steering column and a pipe body part is high, and precise assembly is ensured.
Description
Technical field
The present invention relates to machined die technical field, particularly relate to a kind of car steering tube column three lobe flaring die.
Background technology
Car steering tube column is the vitals of automobile steering system.Car steering tube column connects steering wheel, under connect steering box, play a part to form a connecting link, during normal use carry the task of the torque that steering wheel transmits being passed to steering box, in addition tubing string also to have attached the electronic building bricks such as conventional stacked switch.
Car steering tube column is round tube shape structure, one end of car steering tube column needs to adopt Mould Machining to form reducing, but the molding effect of the existing compacting tool set for processing reducing on car steering tube column is poor, in pressing mold process, easily make car steering tube column produce deformation, its reducing processed and body portion axiality on the low side, affect the assembling of car steering tube column.
For this reason, applicant carried out useful exploration and trial, have found result of the above problems, technical scheme described below produces under this background.
Summary of the invention
Technical problem to be solved by this invention: provide for the deficiencies in the prior art a kind of molding effect good, in pressing mold process, not easily produce deformation and the reducing of its machine-shaping and the high car steering tube column three lobe flaring die of body portion axiality.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of car steering tube column three lobe flaring die, comprising:
One mould bases, described mould bases comprises the upper bolster and die shoe that go to upper and lower parallel interval setting;
One is vertically arranged on the mandrel on described die shoe, described mandrel comprises the first, second, third section of axis body connected successively from the bottom to top, the diameter of described first, second, third section of axis body reduces successively, a support level is formed, by an outer conical surface transition between described second, third section of axis body between described first, second section of axis body;
One to be arranged between described upper and lower die holder and can vertically reciprocating stamper seat;
One is fixedly installed on the cope match-plate pattern on the lower surface of described stamper seat; And
One is fitted in the reducing die on the lower face of described cope match-plate pattern by die sleeve, be formed with an axial passage coaxial with described mandrel in described reducing die, the under shed of described axial passage is formed with the internal conical surface that the outer conical surface between one and described second, third section of axis body cooperatively interacts;
During pressing mold, on second, third section of axis body car steering tube column being inserted in described mandrel and its lower surface is supported on the support level that formed between described first, second section of axis body, described stamper seat is driven vertically to move downward, the axial passage of described reducing die is driven to be enclosed within described mandrel, till internal conical surface and the outer conical surface on described mandrel of the lower opening of described reducing die is formed and coordinate, car steering tube column is made to form reducing between the inner peripheral surface and the outer peripheral face of described mandrel of the axial passage of described reducing die.
In a preferred embodiment of the invention, also comprising one makes described stamper seat vertically move downward the detent mechanism stopped when the internal conical surface of the lower opening of described reducing die and the outer conical surface on described mandrel are formed and coordinate in process.
In a preferred embodiment of the invention, described detent mechanism comprises:
One is arranged on supporting jacket casing on described die shoe and coaxial with described mandrel, is circumferentially arranged at intervals with some location axial passage in described supporting jacket casing;
One is arranged on the supporting plate that described carrying cylinder puts, described supporting plate offers and the supporting plate through hole that for described mandrel pass coaxial with described mandrel, described supporting plate is arranged at intervals with around the periphery of described supporting plate through hole the supporting plate positioning through hole that some and described location axially extending bore is one-to-one relationship;
One is arranged on the location counterdie on described supporting plate, described location counterdie is enclosed by least two valve blocks and forms, the medial surface of described lobe module is a fan-shaped cylinder, its lateral surface is a fan-shaped conical surface, the fan-shaped cylinder of each lobe module encloses rear formation one and that with the outer peripheral face of described mandrel match column type through hole coaxial with described mandrel, and the fan-shaped conical surface of each lobe module encloses up-small and down-big and coaxial with the described mandrel outer conical surface of rear formation one;
Supporting plate positioning through hole on some and described supporting plate is the spring hanger link of one-to-one relationship, and the upper end of described spring hanger link is fixedly connected on the lower face of described cope match-plate pattern, and its lower end is to downward-extension;
One slip cap is contained in the tapered sleeve on described some spring hanger links, is provided with a up-small and down-big and inner conical face that is that match with described outer conical surface in described tapered sleeve; And
Somely to be sleeved on described spring hanger link and spring between described cope match-plate pattern and tapered sleeve, the upper end of described spring is resisted against on the lower face of described cope match-plate pattern, and its lower end abutment is on described tapered sleeve.
In a preferred embodiment of the invention, described location counterdie is enclosed by three pieces of lobe modules and forms, and wherein one piece of lobe module is fixedly installed on described supporting plate, and the lateral surface of other two pieces of lobe modules is respectively provided with one handle.
In a preferred embodiment of the invention, described carrying cylinder cover is formed with a sector notch portion, and position corresponding with the sector notch portion of described supporting jacket casing on described supporting plate offers a sector notch.
In a preferred embodiment of the invention, also comprise a mandrel seat, described mandrel seat comprises one and is fixedly installed on mandrel seat board on described die shoe and one-body molded abutment sleeve on described mandrel seat board, described abutment sleeve radially offers a pair abutment sleeve through hole, the lower end edge of described mandrel axially extends outward an installation projection, and described installation projection offers a radial direction through hole; During installation, the installation projection of mandrel lower end is inserted in the abutment sleeve of described mandrel seat, and a pair abutment sleeve through hole of described abutment sleeve is alignd with the radial direction through hole on described installation projection, adopt connecting bolt through the radial direction through hole on a pair abutment sleeve through hole of abutment sleeve and described installation projection, thus described mandrel is fixed on described mandrel seat.
In a preferred embodiment of the invention, described stamper seat offers a stamper seat axially extending bore coaxial with described mandrel, described cope match-plate pattern offers a cope match-plate pattern axially extending bore coaxial with described mandrel, a lining is provided with in described stamper seat axially extending bore, slide in described lining and be provided with a push rod, the upper end of described push rod upwards extends the upper surface of exposing described stamper seat and is formed with a radial defining flange, the lower opening of the axial passage of described reducing die is extended in the axial passage stretching into described reducing die after the lower end of described push rod extends downwardly through the cope match-plate pattern axially extending bore of described cope match-plate pattern.
Owing to have employed technical scheme as above, beneficial effect of the present invention is: the good forming effect of car steering tube column adopting the present invention to suppress, and be not easy to produce deformation in pressing mold process, its reducing is high with body portion axiality, guarantee accurate assembly.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.
Fig. 1 be the present invention after car steering tube column is inserted in but upper bolster is not depressed time structural representation.
Fig. 2 is the working state figure of the present invention when holding reducing tightly.
Fig. 3 is that the A-A of Fig. 1 is to sectional view.
Fig. 4 is that the B-B of Fig. 1 is to sectional view.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
See accompanying drawing, a kind of car steering tube column three lobe flaring die of the present invention, comprises mould bases 100, mandrel seat 200, mandrel 300, stamper seat 400, cope match-plate pattern 500, die sleeve 600 and reducing die 700.
Mould bases 100 comprises the upper bolster 110 and die shoe 120 that go to upper and lower parallel interval setting, a pair joint pin 130 is provided with between upper bolster 110 and die shoe 120, the upper end of a pair joint pin 130 is fixed on upper bolster 110 by set bolt 131, its lower end is fixed on die shoe 120 by set bolt 132, for being connected with die shoe 120 by upper bolster 110.
Mandrel seat 200 is fixedly installed on mandrel seat board 210 on die shoe 110 by one by bolt 211 and one-body molded abutment sleeve 220 on mandrel seat board 210 is formed, and abutment sleeve 220 radially offers a pair abutment sleeve through hole 221.
Mandrel 300 comprises the first, second, third section of axis body 310,320,330 connected successively from the bottom to top, the diameter of first, second, third section of axis body 310,320,330 reduces successively, wherein, a support level 340 is formed, by outer conical surface 350 transition between second, third section of axis body 320,330 between first, second section of axis body 310,320.Axially extend outward an installation projection 360 at the lower end edge of mandrel 300, install on projection 360 and offer a radial direction through hole 361.During installation, the installation projection 360 of mandrel 300 lower end is inserted in the abutment sleeve 220 of mandrel seat 200, and a pair abutment sleeve through hole 221 of abutment sleeve 220 is alignd with the radial direction through hole 361 installed on projection 360, adopt connecting bolt 370 through nut of screwing on after a pair abutment sleeve through hole 221 and the radial direction through hole 361 installed on projection 360 of abutment sleeve 220, thus mandrel 300 is vertically fixedly mounted on mandrel seat 200.
Stamper seat 400 to be arranged between upper and lower die holder 110,120 and can vertically to move back and forth.Stamper seat 400 is vertically provided with a pair slide bar 440, the upper end of this pair slide bar 440 is through backward upper extension one segment distance of upper bolster 110, the upper end of a pair slide bar 440 is provided with a plate 450, this connecting plate 450 is connected with driving mechanism (not shown), and stamper seat 400 vertically moves back and forth under the driving of driving mechanism.Cope match-plate pattern 500 is fixedly installed on the lower surface of stamper seat 400.Reducing die 700 is fitted on the lower face of cope match-plate pattern 500 by die sleeve 600.Be formed with an axial passage 710 coaxial with mandrel 300 in reducing die 700, the under shed of axial passage 710 is formed with the internal conical surface 711 that the outer conical surface 350 between one and second, third section of axis body 320,330 cooperatively interacts.Stamper seat 400 offers a stamper seat axially extending bore 410 coaxial with mandrel 300, cope match-plate pattern 500 offers a cope match-plate pattern axially extending bore 510 coaxial with mandrel 300, a lining 420 is provided with in stamper seat axially extending bore 410, slide in lining 420 and be provided with a push rod 430, the upper end of push rod 430 upwards extends the upper surface of exposing stamper seat 400 and is formed with a radial defining flange 431, after the lower end of push rod 430 extends downwardly through the cope match-plate pattern axially extending bore 510 of cope match-plate pattern 500, stretch in the axial passage 710 of reducing die 700, and extend to the lower opening of the axial passage 710 of reducing die 700.
The operation principle of car steering tube column three lobe flaring die of the present invention is as follows:
First car steering tube column 10 is inserted in second of mandrel 300, 3rd section of axis body 320, on 330 and its lower surface is supported on first, second segment axis body 310, on the support level 340 formed between 320, stamper seat 400 is driven vertically to move downward, the axial passage 710 of reducing die 700 is driven to be enclosed within mandrel 300, till the internal conical surface 711 of the lower opening of reducing die 700 and the outer conical surface 350 on mandrel 300 are formed and coordinate, in the process, mandrel 300 is by push rod 430 jack-up, car steering tube column 10 is so just made to form reducing between the inner peripheral surface and the outer peripheral face of mandrel 300 of the axial passage 710 of reducing die 700, as shown in Figure 2.
Car steering tube column three lobe flaring die of the present invention also comprises one and makes stamper seat 400 vertically move downward the detent mechanism stopped when the internal conical surface 711 of the lower opening of reducing die 700 is formed coordinate with the outer conical surface 350 on mandrel 300 in process.
Detent mechanism comprises supporting jacket casing 810, supporting plate 820, location counterdie 830, some spring hanger links 840, tapered sleeve 850 and some springs 860.
Supporting jacket casing 810 to be arranged on die shoe 110 and coaxial with mandrel 300, supports in jacket casing 810 and is circumferentially arranged at intervals with some location axial passage 811.Supporting jacket casing 810 forms a sector notch portion 812.
Supporting plate 820 is arranged on supporting jacket casing 810, supporting plate 820 offers and the supporting plate through hole 821 that for mandrel 300 pass coaxial with mandrel 300, supporting plate 820 is arranged at intervals with around the periphery of supporting plate through hole 821 some with the supporting plate positioning through hole 822 of location axial passage 811 in one-to-one relationship.Position corresponding with the sector notch portion 812 of supporting jacket casing 810 on supporting plate 820 offers a sector notch 823.
Location counterdie 830 is arranged on supporting plate 820, location counterdie 830 is enclosed by three pieces of valve blocks 831 and forms, the medial surface of valve block 831 is a fan-shaped cylinder, its lateral surface is a fan-shaped conical surface, the fan-shaped cylinder of three pieces of valve blocks 831 encloses that rear formation one is coaxial with mandrel 300 and the fan-shaped conical surface that is column type through hole that is that match with the outer peripheral face of mandrel 300 832, three pieces of valve blocks 831 encloses up-small and down-big and coaxial with mandrel 300 outer conical surface 833 of rear formation one.Wherein one piece of lobe module 831 is fixedly installed on supporting plate 820, and the lateral surface of other two pieces of lobe modules 831 is respectively provided with one handle 831a.
Some spring hanger links 840 and the supporting plate positioning through hole 822 on supporting plate 820 are in one-to-one relationship, the upper end of spring hanger link 840 is fixedly connected on the lower face of cope match-plate pattern 500, and its lower end is to downward-extension and form the cylindrical slide block 841 that its diameter is greater than the diameter of spring hanger link 840.
Tapered sleeve 850 slip cap is contained on some spring hanger links 840, is provided with a up-small and down-big and inner conical face 851 that is that match with outer conical surface 833 in tapered sleeve 850.
Some springs 860 are sleeved on spring hanger link 840 and between cope match-plate pattern 500 and tapered sleeve 850, the upper end of spring 860 is resisted against on the lower face of cope match-plate pattern 500, and its lower end abutment is on tapered sleeve 850.
In the process that stamper seat 400 drives reducing die 700 to move straight down, first, the inner conical face 851 of tapered sleeve 850 is enclosed within the outer conical surface 833 that formed by the lateral surface of lobe module 831, and make the medial surface of valve block 831 be pressed on the outer peripheral face of mandrel 300 by car steering tube column 10, make to locate better car steering tube column 10, prevent car steering tube column 10 from sending rotation or displacement when pressing mold, ensure the effect of pressing mold; Then stamper seat 400 continues to press down, the cylindrical slide block 841 of spring hanger link 840 lower end is inserted in the axial passage 811 of supporting jacket casing 810 via supporting plate through hole 822 position, in the process, tapered sleeve 850 is pressed on the counterdie 830 of location by spring 860 all the time.When spring 860 is completely by compression, just makes the internal conical surface 711 of the lower opening of reducing die 700 be formed with the outer conical surface 350 on mandrel 300 and coordinate.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (7)
1. a car steering tube column three lobe flaring die, is characterized in that, comprising:
One mould bases, described mould bases comprises the upper bolster and die shoe that go to upper and lower parallel interval setting;
One is vertically arranged on the mandrel on described die shoe, described mandrel comprises the first, second, third section of axis body connected successively from the bottom to top, the diameter of described first, second, third section of axis body reduces successively, a support level is formed, by an outer conical surface transition between described second, third section of axis body between described first, second section of axis body;
One to be arranged between described upper and lower die holder and can vertically reciprocating stamper seat;
One is fixedly installed on the cope match-plate pattern on the lower surface of described stamper seat; And
One is fitted in the reducing die on the lower face of described cope match-plate pattern by die sleeve, be formed with an axial passage coaxial with described mandrel in described reducing die, the under shed of described axial passage is formed with the internal conical surface that the outer conical surface between one and described second, third section of axis body cooperatively interacts;
During pressing mold, on second, third section of axis body car steering tube column being inserted in described mandrel and its lower surface is supported on the support level that formed between described first, second section of axis body, described stamper seat is driven vertically to move downward, the axial passage of described reducing die is driven to be enclosed within described mandrel, till internal conical surface and the outer conical surface on described mandrel of the lower opening of described reducing die is formed and coordinate, car steering tube column is made to form reducing between the inner peripheral surface and the outer peripheral face of described mandrel of the axial passage of described reducing die.
2. car steering tube column three lobe flaring die as claimed in claim 1, it is characterized in that, also comprise one and make described stamper seat vertically move downward the detent mechanism stopped when the internal conical surface of the lower opening of described reducing die and the outer conical surface on described mandrel are formed and coordinate in process.
3. car steering tube column three lobe flaring die as claimed in claim 2, it is characterized in that, described detent mechanism comprises:
One is arranged on supporting jacket casing on described die shoe and coaxial with described mandrel, is circumferentially arranged at intervals with some location axial passage in described supporting jacket casing;
One is arranged on the supporting plate that described carrying cylinder puts, described supporting plate offers and the supporting plate through hole that for described mandrel pass coaxial with described mandrel, described supporting plate is arranged at intervals with around the periphery of described supporting plate through hole the supporting plate positioning through hole that some and described location axially extending bore is one-to-one relationship;
One is arranged on the location counterdie on described supporting plate, described location counterdie is enclosed by least two valve blocks and forms, the medial surface of described lobe module is a fan-shaped cylinder, its lateral surface is a fan-shaped conical surface, the fan-shaped cylinder of each lobe module encloses rear formation one and that with the outer peripheral face of described mandrel match column type through hole coaxial with described mandrel, and the fan-shaped conical surface of each lobe module encloses up-small and down-big and coaxial with the described mandrel outer conical surface of rear formation one;
Supporting plate positioning through hole on some and described supporting plate is the spring hanger link of one-to-one relationship, and the upper end of described spring hanger link is fixedly connected on the lower face of described cope match-plate pattern, and its lower end is to downward-extension;
One slip cap is contained in the tapered sleeve on described some spring hanger links, is provided with a up-small and down-big and inner conical face that is that match with described outer conical surface in described tapered sleeve; And
Somely to be sleeved on described spring hanger link and spring between described cope match-plate pattern and tapered sleeve, the upper end of described spring is resisted against on the lower face of described cope match-plate pattern, and its lower end abutment is on described tapered sleeve.
4. car steering tube column three lobe flaring die as claimed in claim 3, it is characterized in that, described location counterdie is enclosed by three pieces of lobe modules and forms, and wherein one piece of lobe module is fixedly installed on described supporting plate, and the lateral surface of other two pieces of lobe modules is respectively provided with one handle.
5. car steering tube column three lobe flaring die as claimed in claim 4, is characterized in that, described carrying cylinder cover is formed with a sector notch portion, and position corresponding with the sector notch portion of described supporting jacket casing on described supporting plate offers a sector notch.
6. car steering tube column three lobe flaring die as claimed in claim 5, it is characterized in that, also comprise a mandrel seat, described mandrel seat comprises one and is fixedly installed on mandrel seat board on described die shoe and one-body molded abutment sleeve on described mandrel seat board, described abutment sleeve radially offers a pair abutment sleeve through hole, the lower end edge of described mandrel axially extends outward an installation projection, and described installation projection offers a radial direction through hole; During installation, the installation projection of mandrel lower end is inserted in the abutment sleeve of described mandrel seat, and a pair abutment sleeve through hole of described abutment sleeve is alignd with the radial direction through hole on described installation projection, adopt connecting bolt through the radial direction through hole on a pair abutment sleeve through hole of abutment sleeve and described installation projection, thus described mandrel is fixed on described mandrel seat.
7. car steering tube column three lobe flaring die as claimed in claim 6, it is characterized in that, described stamper seat offers a stamper seat axially extending bore coaxial with described mandrel, described cope match-plate pattern offers a cope match-plate pattern axially extending bore coaxial with described mandrel, a lining is provided with in described stamper seat axially extending bore, slide in described lining and be provided with a push rod, the upper end of described push rod upwards extends the upper surface of exposing described stamper seat and is formed with a radial defining flange, the lower opening of the axial passage of described reducing die is extended in the axial passage stretching into described reducing die after the lower end of described push rod extends downwardly through the cope match-plate pattern axially extending bore of described cope match-plate pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510412908.8A CN105170813B (en) | 2015-07-14 | 2015-07-14 | Three-section flaring die for automobile steering column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510412908.8A CN105170813B (en) | 2015-07-14 | 2015-07-14 | Three-section flaring die for automobile steering column |
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| Publication Number | Publication Date |
|---|---|
| CN105170813A true CN105170813A (en) | 2015-12-23 |
| CN105170813B CN105170813B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510412908.8A Active CN105170813B (en) | 2015-07-14 | 2015-07-14 | Three-section flaring die for automobile steering column |
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| CN (1) | CN105170813B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273911A (en) * | 2017-07-27 | 2018-07-13 | 中国航发哈尔滨东安发动机有限公司 | Turn round the swollen pattern tool of sleeve |
| CN108380767A (en) * | 2018-03-02 | 2018-08-10 | 东华大学 | Tube expander |
| CN106734304B (en) * | 2016-12-08 | 2018-10-19 | 湖南特诚成套电器有限公司 | A kind of extrusion press |
| CN109436458A (en) * | 2018-12-27 | 2019-03-08 | 淅川县金博橡塑有限公司 | A kind of two-way beam mouth tooling of rubber bushing and method |
| CN116353042A (en) * | 2023-06-02 | 2023-06-30 | 四川联塑科技实业有限公司 | Flaring die for processing PVC (polyvinyl chloride) pipe by intelligent temperature control and adjustment |
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| SU845996A1 (en) * | 1979-12-25 | 1981-07-15 | Предприятие П/Я Г-4585 | Apparatus for reducing tube blanks |
| KR20110004637A (en) * | 2009-07-08 | 2011-01-14 | 세종공업 주식회사 | Apparatus for sizing the housing of a catalytic converter |
| CN102601242A (en) * | 2012-04-04 | 2012-07-25 | 无锡欧易博阀业科技有限公司 | Valve seat necking die |
| CN202398731U (en) * | 2012-01-16 | 2012-08-29 | 浙江金盾消防器材有限公司 | Necking device for bottom of steel seamless gas cylinder |
| CN104043741A (en) * | 2014-06-27 | 2014-09-17 | 张家港保税区亚信汽车零部件科技有限公司 | Steel tube necking die |
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| SU845996A1 (en) * | 1979-12-25 | 1981-07-15 | Предприятие П/Я Г-4585 | Apparatus for reducing tube blanks |
| KR20110004637A (en) * | 2009-07-08 | 2011-01-14 | 세종공업 주식회사 | Apparatus for sizing the housing of a catalytic converter |
| CN202398731U (en) * | 2012-01-16 | 2012-08-29 | 浙江金盾消防器材有限公司 | Necking device for bottom of steel seamless gas cylinder |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734304B (en) * | 2016-12-08 | 2018-10-19 | 湖南特诚成套电器有限公司 | A kind of extrusion press |
| CN108273911A (en) * | 2017-07-27 | 2018-07-13 | 中国航发哈尔滨东安发动机有限公司 | Turn round the swollen pattern tool of sleeve |
| CN108380767A (en) * | 2018-03-02 | 2018-08-10 | 东华大学 | Tube expander |
| CN109436458A (en) * | 2018-12-27 | 2019-03-08 | 淅川县金博橡塑有限公司 | A kind of two-way beam mouth tooling of rubber bushing and method |
| CN116353042A (en) * | 2023-06-02 | 2023-06-30 | 四川联塑科技实业有限公司 | Flaring die for processing PVC (polyvinyl chloride) pipe by intelligent temperature control and adjustment |
| CN116353042B (en) * | 2023-06-02 | 2023-08-01 | 四川联塑科技实业有限公司 | Flaring die for processing PVC (polyvinyl chloride) pipe by intelligent temperature control and adjustment |
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| Publication number | Publication date |
|---|---|
| CN105170813B (en) | 2017-05-03 |
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