CN203437574U - Thermal enclosed forging die for piston rod of engineering machinery - Google Patents
Thermal enclosed forging die for piston rod of engineering machinery Download PDFInfo
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- CN203437574U CN203437574U CN201320449387.XU CN201320449387U CN203437574U CN 203437574 U CN203437574 U CN 203437574U CN 201320449387 U CN201320449387 U CN 201320449387U CN 203437574 U CN203437574 U CN 203437574U
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- die
- bulb
- forging
- piston rod
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Abstract
The utility model provides a thermal enclosed forging die for a piston rod of engineering machinery, relating to a forging die. The thermal enclosed forging die comprises an upper concave die, a lower concave die, an upper punch pin, a lower punch pin and an upper oil cylinder, wherein the upper concave die and the lower concave die closely contact together when being assembled together; a die cavity formed by assembling the upper concave die and the lower concave die is consistent with a workpiece in shape, thereby enabling the die cavity to leave no clearance on one side of a bulb; the upper punch pin is also connected with an upper extrusion cylinder of a press machine through a push rod; when the upper punch pin is continuously squeezed into the bulb of the workpiece through the push rod, a punching procedure can be simultaneously completed during a forging procedure, and moreover, a material is squeezed to the bulb in an auxiliary way so that the bulb is saturated; as the surplus material flows toward the rod body, the bulb of the piston rod does not need to be punched and trimmed after being forged. Therefore, the thermal enclosed forging die is low in raw material consumption, short in processing procedure, low in processing cost, high in production efficiency, good in workpiece quality, simple in structure, convenient to operate and long in service life, and applicable for popularization and use in the precise forging production of small and medium-size enterprises.
Description
Technical field
The utility model relates to a kind of forging mold, particularly the hot block forging mould of a kind of engineering machinery piston rod.
Background technology
Block forging is advanced precision forging technology technology in a kind of present age, it refers in the die cavity of sealing, by two unidirectional or out movements with mold or drift, extrusion metal is full of die cavity, thereby obtains the Forging Technology technology of the near net-shape fine forge piece of non-trimming.Because block forging technique can be saved most machining, cost is significantly reduced, thereby the development in the industry parts such as automobile, space flight and aviation are manufactured is very rapid in recent years.
At present, for the piston rod in engineering machinery, generally by bulb and shaft, formed, and on bulb, be also provided with a pin shaft hole, to be connected with engineering machinery scraper bowl by the bearing pin being arranged in this pin shaft hole.Also there is at present the Forging Technology of employing to forge this piston rod, but the piston rod forging mold adopting due to existing Forging Technology generally comprises: upper cavity die 1, lower cavity die 2, upper punch 3, low punch 4, upper cylinder 5(is referring to Fig. 2), this upper cavity die, lower cavity die is not closely to link together when matched moulds, but upper cavity die, the formed die cavity of lower cavity die also leaves overflow launder 9 one in bulb periphery, therefore when forging, due to upper, the squeezing action of low punch, make the blank in die cavity when being full of die cavity, also flow to overflow launder, thereby make workpiece after forging increase overlap one more than on its bulb, therefore after forging, also need the operation that increases by one trimming that this overlap is cut away, thereby raw material have not only been increased, manufacturing procedure and processing cost have also been increased.In addition, existing Forging Technology, after having forged piston rod, also needs the bulb of piston rod to carry out punching, has also further increased manufacturing procedure, has increased processing cost, has reduced production efficiency.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of engineering machinery piston rod hot block forging mould, the weak point that raw materials consumption is large, manufacturing procedure is long, processing cost is high existing to solve prior art.
The technical scheme solving the problems of the technologies described above is: the hot block forging mould of a kind of engineering machinery piston rod, comprise upper cavity die, lower cavity die, upper punch, low punch, upper cylinder, described upper cavity die, lower cavity die when matched moulds close contact together, and the die cavity forming when upper cavity die, lower cavity die matched moulds is consistent with workpiece shape.
Further technical scheme of the present utility model is: described upper punch also links together by the upper squeeze cylinder of push rod and forcing press.
Owing to adopting said structure, the hot block forging mould of engineering machinery piston rod of the utility model compared with prior art, has following beneficial effect:
1. reduce raw materials consumption, manufacturing procedure is short, processing cost is low:
Due to upper cavity die described in the utility model, lower cavity die, close contact is together when the matched moulds, and the die cavity forming when upper cavity die, lower cavity die matched moulds is consistent with workpiece shape, so formed die cavity does not stay any space in bulb one side when this upper cavity die, lower cavity die matched moulds.When forging, the extruding of upper and lower drift makes the blank in die cavity when being full of bulb die cavity, avoid one burr of many increasings on its bulb of the workpiece after forging, thereby not only reduces raw materials consumption, has also reduced trimming operation, has reduced processing cost.
In addition, because upper punch of the present utility model also links together by the upper squeeze cylinder of push rod and forcing press, during forging, also can upper punch be continued to clamp-on downwards in the bulb of workpiece by this push rod, thereby can in forging process, complete punching operation simultaneously and auxiliary material is pressed to bulb make bulb full, unnecessary material flows and lengthens shaft to shaft, make the waste material of former formation overlap become useful material, simultaneously without again the bulb of piston rod is carried out to punching after forging, therefore further reduced raw materials consumption, reduced manufacturing procedure, thereby further reduced processing cost.
2. production efficiency is high:
Because manufacturing procedure of the present utility model is short, therefore, its production efficiency is higher.
3. workpiece quality is good:
Due to the utility model employing is hot block forging technique, the piston rod workpiece non-trimming of producing, product size precision is high, surface quality Hao, dense structure is even, the continuous reasonable layout of metal streamline, resistance to corrosion and wearability is strong, bending strength and fatigue life high.
4. simple in structure, easy to operate, die life is high, is suitable for carrying out promoting the use of in precision forging production in medium and small enterprise.
Below, in conjunction with the accompanying drawings and embodiments the technical characterictic of the hot block forging mould of engineering machinery piston rod of the utility model is further described.
Accompanying drawing explanation
Fig. 1: the structural representation of the hot block forging mould of engineering machinery piston rod of the utility model.
Fig. 2: the structural representation of existing piston rod warm and hot forging mould.
In above-mentioned accompanying drawing 1-2, each label declaration is as follows:
1-upper cavity die, 2-lower cavity die, 3-upper punch, 4-low punch,
5-upper cylinder, 6-push rod, the upper squeeze cylinder of 7-, 8-workbench,
9-overflow launder, Q-die cavity, the direction of arrow is application of force direction.
The specific embodiment
?disclosed in Fig. 1 is the hot block forging mould of a kind of engineering machinery piston rod, upper cavity die 1, lower cavity die 2, upper punch 3, low punch 4, upper cylinder 5, push rod 6, consists of.Described upper cavity die 1 is connected with upper cylinder 5, lower cavity die 2 is fixed on workbench 8, when matched moulds, together, and the die cavity Q forming when upper cavity die 1, lower cavity die 2 matched moulds is consistent with workpiece shape, is that this die cavity Q does not stay any space in bulb periphery for upper cavity die 1, lower cavity die 2 close contacts.Described upper punch 3 also links together by push rod 6 and the upper squeeze cylinder 7 of forcing press, by this push rod 6, upper punch 3 can be continued to clamp-on downwards in the bulb of workpiece, thereby can complete punching operation and material is pressed to bulb in forging process simultaneously, make bulb full, unnecessary material flows to shaft.
Operation principle of the present utility model:
During use, lower cavity die 2 is fixed on workbench, put into after blank, forcing press is by descending with upper squeeze cylinder 7 and upper cavity die 1, by upper cavity die 1, lower cavity die 2 matched moulds and give high pressure by upper cylinder 5 and compress closed, upper punch 3, low punch 4 are full of die cavity by blank extruding simultaneously, upper squeeze cylinder 7 continues when descending, and push rod 6 promotes upper punch 3 to be continued to clamp-on punching downwards, then, upper squeeze cylinder 7 pressure releases are returned, and workbench ejects mechanism and ejects workpiece.
Claims (2)
1. the hot block forging mould of engineering machinery piston rod, comprise upper cavity die (1), lower cavity die (2), upper punch (3), low punch (4), upper cylinder (5), it is characterized in that: described upper cavity die (1), lower cavity die (2) when matched moulds close contact together, and the die cavity (Q) forming when upper cavity die (1), lower cavity die (2) matched moulds is consistent with workpiece shape.
2. the hot block forging mould of engineering machinery piston rod according to claim 1, is characterized in that: described upper punch (3) also links together by push rod (6) and the upper squeeze cylinder (7) of forcing press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449387.XU CN203437574U (en) | 2013-07-26 | 2013-07-26 | Thermal enclosed forging die for piston rod of engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449387.XU CN203437574U (en) | 2013-07-26 | 2013-07-26 | Thermal enclosed forging die for piston rod of engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203437574U true CN203437574U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320449387.XU Expired - Fee Related CN203437574U (en) | 2013-07-26 | 2013-07-26 | Thermal enclosed forging die for piston rod of engineering machinery |
Country Status (1)
| Country | Link |
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| CN (1) | CN203437574U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511562A (en) * | 2013-12-14 | 2015-04-15 | 柳州市国顺机械制造有限公司 | Forming die for piston rod of loading machine |
| CN105081191A (en) * | 2015-08-12 | 2015-11-25 | 曹立新 | Non-flange forging method of thrust rod head |
| CN107186152A (en) * | 2017-07-19 | 2017-09-22 | 桐乡市恒泰精密机械有限公司 | Compressor piston forging process for fuel mould |
| CN107774858A (en) * | 2016-08-30 | 2018-03-09 | 衡水市潴龙万向有限公司 | A kind of automobile steering joint closed die forging technique |
| CN112170617A (en) * | 2020-08-15 | 2021-01-05 | 山东汽车齿轮总厂锻造二分厂 | Forging process |
-
2013
- 2013-07-26 CN CN201320449387.XU patent/CN203437574U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511562A (en) * | 2013-12-14 | 2015-04-15 | 柳州市国顺机械制造有限公司 | Forming die for piston rod of loading machine |
| CN105081191A (en) * | 2015-08-12 | 2015-11-25 | 曹立新 | Non-flange forging method of thrust rod head |
| CN107774858A (en) * | 2016-08-30 | 2018-03-09 | 衡水市潴龙万向有限公司 | A kind of automobile steering joint closed die forging technique |
| CN107186152A (en) * | 2017-07-19 | 2017-09-22 | 桐乡市恒泰精密机械有限公司 | Compressor piston forging process for fuel mould |
| CN112170617A (en) * | 2020-08-15 | 2021-01-05 | 山东汽车齿轮总厂锻造二分厂 | Forging process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20140726 |
|
| EXPY | Termination of patent right or utility model |