CN203061790U - Fully-enclosed bevel gear shaft cold heading mould structure - Google Patents
Fully-enclosed bevel gear shaft cold heading mould structure Download PDFInfo
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- CN203061790U CN203061790U CN 201320042722 CN201320042722U CN203061790U CN 203061790 U CN203061790 U CN 203061790U CN 201320042722 CN201320042722 CN 201320042722 CN 201320042722 U CN201320042722 U CN 201320042722U CN 203061790 U CN203061790 U CN 203061790U
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Abstract
The utility model relates to a fully-enclosed bevel gear shaft cold heading mould structure. The fully-enclosed bevel gear shaft cold heading mould structure comprises a stamping mould unit and a main mould unit, wherein the main mould unit comprises a main mould; a main mould cavity insert is arranged in the center of the main mould; a main mould thimble is arranged at the bottom of the main mould cavity insert; a thimble sleeve is arranged on the head of the main mould thimble; the main mould thimble penetrates through the center of the main mould; the stamping mould unit comprises a stamping mould sleeve; a stamping mould back cushion is arranged at the bottom end of the stamping mould sleeve; a stamping mould is arranged inside the stamping mould sleeve; a stamping mould cavity insert is arranged in the center of the stamping mould; a slidable stamping rod is arranged in the center of the stamping mould and the stamping mould cavity insert; a strong belleville spring is arranged between the stamping mould and the stamping mould back cushion; and a stamping mould returning needle is arranged in the center of the stamping mould back cushion and penetrates through the stamping mould back cushion to be abutted against the stamping rod. A blank is constrained and formed in the closed mould cavity in multiple directions and is deformed to fill the mould cavity at a composite three-directional pressure stress so as to obtain a precisely-forged cold heading product which has almost the same shape and size with the mould cavity, does not have fins and has a nearly net size; and the fully-enclosed bevel gear shaft cold heading mould structure is high in efficiency, reduced in cost, good in mechanical properties and high in surface smoothness.
Description
Technical field
The utility model relates to a kind of mould structure in the hardware industry, especially relates to a kind of totally-enclosed conical tooth shaft cold-heading mould structure.
Background technology
At present, in hardware industry, producing conical tooth shaft class part traditional handicraft method is the die cast that adopts, die cast belongs to very common a kind of processing method, its efficient is low, the cost height, low precision, and can there be current mark in the finished product that this method is produced sometimes, cold shut, depression, bubble, pore, shrinkage cavity, crackle, owe casting, pitted skin, overlap, layering and defective such as loose, make that product mechanical performance in use is undesirable, and because scratch can appear in mould and other reason, decorative pattern, netted burr, coloured speckle, misalignment, distortion, the hard point, defective such as fragility and seepage equally also can influence mechanical performance of products; Behind die cast, the product needed fine finishining that has can be come into operation, so at least, need two procedures just can finish processing, many procedures will increase the cost that dispatches from the factory of product, production efficiency reduces greatly, because the fine finishining process that has can be carried out machining to product, will produce waste material like this, causes waste.
Summary of the invention
Technical problem to be solved in the utility model provides the totally-enclosed conical tooth shaft cold-heading mould structure that a kind of needs one procedure just can be finished the fine finishining effect.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of totally-enclosed conical tooth shaft cold-heading mould structure, comprise punch die unit and main form unit, described main form unit comprises main mould, the center of main mould is provided with the master cast cavity insert, master cast cavity insert bottom is provided with main mould thimble, main mould thimble head is provided with tailstock barrel, main mould thimble runs through main mould center, described punch die unit comprises the punch die cover, punch die cover bottom is provided with cushion block behind the punch die, punch die cover inside is provided with punch die, and center of die is provided with the punch die cavity block; Be provided with slidably towards rod at the center of punch die and punch die cavity block; Be provided with powerful disk spring behind punch die and the punch die between the cushion block; After the center of cushion block behind the punch die is provided with punch die material returned pin to run through punch die cushion block with offset towards rod; The punch die cavity block is combined closely by powerful disk spring and master cast cavity insert and is formed the die cavity of sealing.
In order powerful disk spring to be fixed on designated space and can deviation position, further concrete, be provided with die pad between the cushion block behind described powerful disk spring and the punch die, die pad is stepped ramp type, powerful disk spring one end is placed on the step surface, and the other end and punch die end face offset; Punch die material returned pin runs through die pad and offsets towards rod.
In order to limit the position that dashes rod, further concrete, the center of described punch die bottom is provided with counter sink, is provided with step towards rod and cooperates with counter sink.
Just can obtain conical tooth shaft in order to need not back processing, further concrete, the punch die die cavity in the described punch die cavity block is the awl dentation.
The beneficial effects of the utility model are: adopt after the said structure, blank multidirectional constraint in the sealing die cavity is shaped, distortion is full of die cavity under the compound three-dimensional compressive stress, thereby obtain one almost with the finish forge cold-heading product of the identical non-trimming near net-shape of die cavity shape and size, therefore can once obtain bigger deflection in the distortion, and can cold upset forming awl tooth, efficient is significantly improved, cost significantly reduces, the product satisfactory mechanical property after the moulding, surface smoothness height.
Description of drawings
Fig. 1 is the structural representation before the utility model cold-heading;
Structural representation when Fig. 2 is the utility model cold-heading;
Fig. 3 is the structural representation of liftout after the utility model cold-heading;
Fig. 4 is the structural representation of the utility model die pad;
Fig. 5 is the structural representation of the utility model punch die.
Among the figure: 1, punch die material returned pin; 2, cushion block behind the punch die; 3, die pad; 4, punch die cover; 5, powerful disk spring; 6, punch die; 7, dash rod; 8, main mould; 9, main mould thimble; 10, tailstock barrel; 11, master cast cavity insert; 12, punch die cavity block; 13, counter sink; 14, punch die die cavity.
The specific embodiment
As Fig. 1, Fig. 4 and a kind of totally-enclosed conical tooth shaft cold-heading mould structure shown in Figure 5, comprise punch die unit and main form unit, described main form unit comprises main mould 8, the center of main mould 8 is provided with master cast cavity insert 11, master cast cavity insert 11 bottoms are provided with main mould thimble 9, main mould thimble 9 heads are provided with tailstock barrel 10, main mould thimble 9 runs through main mould 8 centers, described punch die unit comprises punch die cover 4, punch die overlaps 4 bottoms and is provided with cushion block 2 behind the punch die, punch die overlaps 4 inside and is provided with punch die 6, and punch die 6 centers are provided with punch die cavity block 12; Be provided with slidably towards rod 7 at the center of punch die 6 and punch die cavity block 12; Be provided with powerful disk spring 5 behind punch die 6 and the punch die between the cushion block 2; After the center of cushion block behind the punch die 2 is provided with punch die material returned pin 1 to run through punch die cushion block 2 with dash rod 7 and offset; Be provided with die pad 3 between the cushion block 2 behind described powerful disk spring 5 and the punch die, die pad 3 is stepped ramp type, and powerful disk spring 5 one ends are placed on the step surface, and the other end and punch die 6 end faces offset; Punch die material returned pin 1 runs through die pad 3 and offsets towards rod 7; Punch die cavity block 12 is combined closely by powerful disk spring 5 and master cast cavity insert 11 and is formed the die cavity of sealing; The center of described punch die 6 bottoms is provided with counter sink 13, is provided with step towards rod 7 and cooperates with counter sink 13; Punch die die cavity 14 in the described punch die cavity block 12 is the awl dentation.
At first blank is placed in the die cavity of master cast cavity insert 11 as shown in Figure 1, the punch die unit moves to main form unit, when the punch die 6 in the punch die unit contacts with main mould 8 in the main form unit, begin cold-heading afterwards, the punch die unit continues to main form unit motion as shown in Figure 2, the powerful disk spring 5 of punch die 6 compressions, punch die material returned pin 1 will promote to travel forward towards rod 7, make the blank head material be full of whole punch die die cavity 14 towards excellent 7 extrusion billets; The punch die unit leaves main form unit motion as shown in Figure 3 afterwards, powerful disk spring 5 promotes punch die 6 and is returned to original position, position when dashing rod 7 maintenance extruding, at this moment, the die cavity that main mould thimble 9 motions are released master cast cavity insert 11 with the cold-heading finished product falls in the bucket that connects material, and finishes the whole operation process.
It is emphasized that: above only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.
Claims (4)
1. totally-enclosed conical tooth shaft cold-heading mould structure, comprise punch die unit and main form unit, described main form unit comprises main mould (8), the center of main mould (8) is provided with master cast cavity insert (11), master cast cavity insert (11) bottom is provided with main mould thimble (9), main mould thimble (9) head is provided with tailstock barrel (10), main mould thimble (9) runs through main mould (8) center, it is characterized in that: described punch die unit comprises punch die cover (4), punch die cover (4) bottom is provided with cushion block (2) behind the punch die, punch die cover (4) inside is provided with punch die (6), and punch die (6) center is provided with punch die cavity block (12); Be provided with slidably towards rod (7) at the center of punch die (6) and punch die cavity block (12); Be provided with powerful disk spring (5) behind punch die (6) and the punch die between the cushion block (2); After the center of cushion block behind the punch die (2) is provided with punch die material returned pin (1) to run through punch die cushion block (2) with dash rod (7) and offset; Punch die cavity block (12) is combined closely by powerful disk spring (5) and master cast cavity insert (11) and is formed the die cavity of sealing.
2. totally-enclosed conical tooth shaft cold-heading mould structure according to claim 1, it is characterized in that: be provided with die pad (3) behind described powerful disk spring (5) and the punch die between the cushion block (2), die pad (3) is stepped ramp type, powerful disk spring (5) one ends are placed on the step surface, and the other end and punch die (6) end face offsets; Punch die material returned pin (1) runs through die pad (3) and offsets towards rod (7).
3. totally-enclosed conical tooth shaft cold-heading mould structure according to claim 1 is characterized in that: the center of described punch die (6) bottom is provided with counter sink (13), dashes rod (7) and is provided with step and cooperates with counter sink (13).
4. totally-enclosed conical tooth shaft cold-heading mould structure according to claim 1 is characterized in that: the punch die die cavity (14) in the described punch die cavity block (12) is the awl dentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320042722 CN203061790U (en) | 2013-01-28 | 2013-01-28 | Fully-enclosed bevel gear shaft cold heading mould structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320042722 CN203061790U (en) | 2013-01-28 | 2013-01-28 | Fully-enclosed bevel gear shaft cold heading mould structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203061790U true CN203061790U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320042722 Expired - Lifetime CN203061790U (en) | 2013-01-28 | 2013-01-28 | Fully-enclosed bevel gear shaft cold heading mould structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042151A (en) * | 2013-01-28 | 2013-04-17 | 苏州工业园区新凯精密五金有限公司 | Totally-closed bevel gear shaft cold heading mould structure |
| CN103611862A (en) * | 2013-11-13 | 2014-03-05 | 梧州恒声电子科技有限公司 | Pressing die for T-shaped iron |
| CN104325064A (en) * | 2014-11-06 | 2015-02-04 | 苏州工业园区新凯精密五金有限公司 | Cold heading forming technology for balancing weight and die structure for pre-heading large step |
| CN105537486A (en) * | 2016-01-21 | 2016-05-04 | 浙江机电职业技术学院 | Counter-forcible-restraining machining die for part punching |
| CN106623720A (en) * | 2015-10-31 | 2017-05-10 | 重庆鼎汉机械有限公司 | Moving die core of cold heading die |
| CN106623732A (en) * | 2015-10-31 | 2017-05-10 | 重庆鼎汉机械有限公司 | Rotating sliding type forming ejection mechanism |
-
2013
- 2013-01-28 CN CN 201320042722 patent/CN203061790U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042151A (en) * | 2013-01-28 | 2013-04-17 | 苏州工业园区新凯精密五金有限公司 | Totally-closed bevel gear shaft cold heading mould structure |
| CN103611862A (en) * | 2013-11-13 | 2014-03-05 | 梧州恒声电子科技有限公司 | Pressing die for T-shaped iron |
| CN104325064A (en) * | 2014-11-06 | 2015-02-04 | 苏州工业园区新凯精密五金有限公司 | Cold heading forming technology for balancing weight and die structure for pre-heading large step |
| CN106623720A (en) * | 2015-10-31 | 2017-05-10 | 重庆鼎汉机械有限公司 | Moving die core of cold heading die |
| CN106623732A (en) * | 2015-10-31 | 2017-05-10 | 重庆鼎汉机械有限公司 | Rotating sliding type forming ejection mechanism |
| CN106623720B (en) * | 2015-10-31 | 2019-04-19 | 重庆鼎汉机械有限公司 | Cold heading die moving-mould-core |
| CN106623732B (en) * | 2015-10-31 | 2019-04-19 | 重庆鼎汉机械有限公司 | Rotational slide formula forms ejecting mechanism |
| CN105537486A (en) * | 2016-01-21 | 2016-05-04 | 浙江机电职业技术学院 | Counter-forcible-restraining machining die for part punching |
| CN105537486B (en) * | 2016-01-21 | 2018-09-11 | 浙江机电职业技术学院 | The anti-intense beam processing mold of part punching |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |