CN103611783B - T iron hole-drawing die - Google Patents
T iron hole-drawing die Download PDFInfo
- Publication number
- CN103611783B CN103611783B CN201310575063.5A CN201310575063A CN103611783B CN 103611783 B CN103611783 B CN 103611783B CN 201310575063 A CN201310575063 A CN 201310575063A CN 103611783 B CN103611783 B CN 103611783B
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- CN
- China
- Prior art keywords
- iron
- fixing
- counterdie
- ejector pin
- lower die
- 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.)
- Expired - Fee Related
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Abstract
The invention discloses a T iron hole-drawing die. The T iron hole-drawing die comprises an upper die, a lower die, a lower die plate, a fixing plate, a buoyancy lifting spring, a fixing ejector pin, a returning sleeve and a returning ejector pin, wherein a projection is convexly arranged in the center of the bottom of the upper die; the fixing plate is fixed on the upper side of the lower die plate; the lower die is positioned above the fixing plate and the lower die plate; the buoyancy lifting spring is abutted between the lower die and the lower die plate; the lower end of the fixing ejector pin is fixed on the fixing plate; the upper end of the fixing ejector pin extends in a center hole of the lower die; the vertical center line of the fixing ejector pin is coincident with the vertical center line of the projection; the returning sleeve is movably sleeved on the fixing ejector pin; the returning ejector pin sequentially penetrates in the lower die plate and the fixing plate; and the top of the returning ejector pin is abutted to the bottom of the returning sleeve. By the T iron hole-drawing die, the concentricity of a counter bored hole of a T iron product and a center hole of a center column can be guaranteed, the machining efficiency is improved, and the cost is saved.
Description
Technical field
The present invention relates to a kind of mould, particularly relate to a kind of T iron and take out punch die.
Background technology
Common T iron carries out bore process after shaping again, utilize drilling machine to hole and form the counterbore at its top and the post holes of bottom, easily there is in production process the problem that cylinder boring is eccentric and working (machining) efficiency is lower in the mode of this lathe boring, can not meet the demand of production.
Summary of the invention
The object of this invention is to provide a kind of T iron and take out punch die, solve the problem that production process easily occurs that cylinder boring is eccentric and working (machining) efficiency is lower.
For achieving the above object, the invention provides a kind of T iron and take out punch die, comprise patrix, counterdie, lower bolster, fixed head, buoyance lift spring, fixing thimble, material returning sleeve and material returned thimble, the bottom centre of described patrix is convexly equipped with salient point, described fixed head is fixed on the upside of described lower bolster, described counterdie is positioned at the top of described fixed head and described lower bolster, and described buoyance lift spring is supported between described counterdie and described lower bolster, the lower end of described fixing thimble is fixed on described fixed head, the upper end of described fixing thimble is stretched in the centre bore of described counterdie, the vertical center line of described fixing thimble overlaps with the vertical center line of described salient point, described material returning sleeve is movably set on described fixing thimble, described material returned thimble successively through described lower bolster and described fixed head and its top support in the bottom of described material returning sleeve.
Preferably, also comprise spacing collar, described spacing collar is fixed on the upside of described lower bolster, and described spacing collar top hooks the outer rim at described counterdie.
Preferably, also comprise the blowing nozzle being connected to compressed air source, described blowing nozzle is positioned at the top of described counterdie.
Compared with prior art, T iron of the present invention takes out punch die owing to being provided with described fixing thimble, and be convexly equipped with salient point in the bottom centre of described patrix, the vertical center line of described fixing thimble and the vertical center line of described salient point overlap, thus the cylinder counterbore of T iron product can be made shaping together with center pillar mesopore, and the concentricity of counterbore and center pillar mesopore can be ensured, within making the concentricity of counterbore and center pillar mesopore reach 0.05mm; In addition, take out by mould the mode that hole replaces drilling machine boring, not only can control the internal diameter of counterbore and height well, make the size of counterbore more stable, and it is faster to compare drilling machine process velocity, efficiency is higher, does not also produce waste material, thus has saved cost.
By following description also by reference to the accompanying drawings, the present invention will become more clear, and these accompanying drawings are for explaining embodiments of the invention.
Accompanying drawing explanation
Fig. 1 is the charging schematic diagram that punch die taken out by T iron of the present invention.
Fig. 2 is the schematic diagram of finding time that punch die taken out by T iron of the present invention.
Fig. 3 is the material returned schematic diagram that punch die taken out by T iron of the present invention.
Detailed description of the invention
With reference now to accompanying drawing, describe embodiments of the invention, element numbers similar in accompanying drawing represents similar element.
Please refer to Fig. 1-3, described T iron is taken out punch die and is comprised patrix 1, counterdie 2, lower bolster 3, fixed head 4, spacing collar 5, buoyance lift spring 6, fixing thimble 7, material returning sleeve 8, material returned thimble 9 and blowing nozzle 10.
The bottom centre of described patrix 1 is convexly equipped with salient point 1a.Described fixed head 4 is fixed on the upside of described lower bolster 3, and described counterdie 2 is positioned at the top of described fixed head 4 and described lower bolster 3, and described buoyance lift spring 6 is supported between described counterdie 1 and described lower bolster 3.Described spacing collar 5 is fixed on the upside of described lower bolster 3, and described spacing collar 5 top hooks the outer rim at described counterdie 2.The lower end of described fixing thimble 7 is fixed on described fixed head 4, and the upper end of described fixing thimble 7 is stretched in the centre bore of described counterdie 2.Described material returning sleeve 8 is movably set on described fixing thimble 7.Described material returned thimble 9 successively through described lower bolster 3 and described fixed head 4 and its top support in the bottom of described material returning sleeve 8.Described blowing nozzle 10 is connected to compressed air source, and described blowing nozzle 10 is positioned at the top of described counterdie 2.
It is as follows that hole technique taken out by T iron of the present invention:
(1), above-mentioned T iron is provided to take out punch die.
(2), make described counterdie 2 shift to extreme higher position, the center pillar part of T ironworker's part 11 is all put into the centre bore of described counterdie 2.When described counterdie 2 shifts to extreme higher position, described spacing collar 5 top hooks the outer rim (as shown in Figure 1) at described counterdie 2.
(3), make described patrix 1 descending, making described patrix 1 suppress T ironworker's part 11 makes counterdie sink down into extreme lower position together with T ironworker's part 11, meanwhile, utilize described salient point 1a and described fixing thimble 7 the cylinder counterbore of T ironworker's part 11 and center pillar mesopore to be extruded respectively and form T iron finished product 12.In this step, during the descending compacting T ironworker's part 11 of described patrix 1, described counterdie 2 compresses described buoyance lift spring 6 makes it compress.During the descending compacting T ironworker's part 11 of described patrix 1, described counterdie 2 departs from described spacing collar 5(as shown in Figure 2).
(4), make described patrix 1 up, described buoyance lift spring 6 pushes described counterdie 2 makes described counterdie 2 rise to extreme higher position, rise with seasonal described material returned thimble 9 and described material returning sleeve 8 and T iron finished product 12 are together boosted, making T iron finished product 12 depart from the centre bore (as shown in Figure 3) of described counterdie 2.
(5), utilize described blowing nozzle 10 to blow to by the T iron finished product 12 boosted, make T iron finished product 12 leave T iron completely and take out punch die (as shown in Figure 3).Thus reach the object of the demoulding, complete the process of whole compacting.
Owing to being provided with described fixing thimble 7, and be convexly equipped with salient point 1a in the bottom centre of described patrix 1, the vertical center line of described fixing thimble 7 and the vertical center line of described salient point 1a overlap, thus the cylinder counterbore of T iron product 11 can be made shaping together with center pillar mesopore, and the concentricity of counterbore and center pillar mesopore can be ensured, within making the concentricity of counterbore and center pillar mesopore reach 0.05mm; In addition, the mode of hole replacement drilling machine boring is taken out by mould, not only can control well counterbore internal diameter and height, make the size of counterbore more stable, and it is faster to compare drilling machine process velocity, efficiency is higher, the mach processing capacity of a large amount of minimizings, improve production capacity and shorten the production cycle (contrast for the present invention and prior art as shown in the table), also do not produce waste material, thus saved cost; Owing to arranging material returned thimble 9, thus T iron finished product 12 demoulding easily can be made.
More than in conjunction with most preferred embodiment, invention has been described, but the present invention is not limited to the embodiment of above announcement, and should contain various carry out according to essence of the present invention amendment, equivalent combinations.
Claims (3)
1. punch die taken out by a T iron, it is characterized in that, comprise: patrix, counterdie, lower bolster, fixed head, buoyance lift spring, fixing thimble, material returning sleeve and material returned thimble, the bottom centre of described patrix is convexly equipped with salient point, described fixed head is fixed on the upside of described lower bolster, described counterdie is positioned at the top of described fixed head and described lower bolster, and described buoyance lift spring is supported between described counterdie and described lower bolster, the lower end of described fixing thimble is fixed on described fixed head, the upper end of described fixing thimble is stretched in the centre bore of described counterdie, the vertical center line of described fixing thimble overlaps with the vertical center line of described salient point, described material returning sleeve is movably set on described fixing thimble, described material returned thimble successively through described lower bolster and described fixed head and its top support in the bottom of described material returning sleeve.
2. punch die taken out by T iron as claimed in claim 1, and it is characterized in that: also comprise spacing collar, described spacing collar is fixed on the upside of described lower bolster, and described spacing collar top hooks the outer rim at described counterdie.
3. punch die taken out by T iron as claimed in claim 1, and it is characterized in that: also comprise the blowing nozzle being connected to compressed air source, described blowing nozzle is positioned at the top of described counterdie.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310575063.5A CN103611783B (en) | 2013-11-18 | 2013-11-18 | T iron hole-drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310575063.5A CN103611783B (en) | 2013-11-18 | 2013-11-18 | T iron hole-drawing die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103611783A CN103611783A (en) | 2014-03-05 |
| CN103611783B true CN103611783B (en) | 2015-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310575063.5A Expired - Fee Related CN103611783B (en) | 2013-11-18 | 2013-11-18 | T iron hole-drawing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103611783B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0560010A1 (en) * | 1992-03-12 | 1993-09-15 | Aida Engineering, Ltd. | Plastic working method for a holed member |
| CN202087671U (en) * | 2011-01-26 | 2011-12-28 | 成都万荣科技有限责任公司 | Simple precise die |
| CN102601595A (en) * | 2012-03-07 | 2012-07-25 | 四川绵阳重业齿轮有限责任公司 | Cold extrusion forming method for 20CrMnTi cylinder spur gear |
| CN203610483U (en) * | 2013-11-18 | 2014-05-28 | 梧州恒声电子科技有限公司 | T-shape iron hole drawing die |
-
2013
- 2013-11-18 CN CN201310575063.5A patent/CN103611783B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0560010A1 (en) * | 1992-03-12 | 1993-09-15 | Aida Engineering, Ltd. | Plastic working method for a holed member |
| CN202087671U (en) * | 2011-01-26 | 2011-12-28 | 成都万荣科技有限责任公司 | Simple precise die |
| CN102601595A (en) * | 2012-03-07 | 2012-07-25 | 四川绵阳重业齿轮有限责任公司 | Cold extrusion forming method for 20CrMnTi cylinder spur gear |
| CN203610483U (en) * | 2013-11-18 | 2014-05-28 | 梧州恒声电子科技有限公司 | T-shape iron hole drawing die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103611783A (en) | 2014-03-05 |
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Granted publication date: 20150603 Termination date: 20151118 |
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| EXPY | Termination of patent right or utility model |