CN204974785U - A cold extruding die for producing rectangle external splines hollow shaft has - Google Patents
A cold extruding die for producing rectangle external splines hollow shaft has Download PDFInfo
- Publication number
- CN204974785U CN204974785U CN201520650856.3U CN201520650856U CN204974785U CN 204974785 U CN204974785 U CN 204974785U CN 201520650856 U CN201520650856 U CN 201520650856U CN 204974785 U CN204974785 U CN 204974785U
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- China
- Prior art keywords
- counterdie
- patrix
- overcoat
- die
- hollow shaft
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Abstract
The utility model discloses a cold extruding die for producing rectangle external splines hollow shaft has includes mould and lower mould, goes up the mould and installs on the hydraulic press, and the lower mould is fixed on the table surface of hydraulic press. Go up the mould and include cope match -plate pattern, upper die base, go up mould overcoat and drift, the upper die base is fixed install in the lower surface of cope match -plate pattern, upward the mould overcoat is fixed installs in the lower surface of upper die base, and the drift is installed on last mould overcoat. The lower mould includes lower bolster, die holder, lower mould overcoat and mold core down, and the die holder is fixed to be installed on the lower bolster, and the lower mould overcoat is fixed to be installed on the lower bolster, and lower mold core is colded pressing through tapering interference fit and is adorned in the lower mould overcoat, and lower mould in -core portion is equipped with shaping die cavity, and the die cavity inner wall that should take shape be equipped with a plurality of shaping portions that have the rectangular channel, and the lower bolster is corresponding with the die holder it has offered the discharge opening to become the die cavity. The utility model discloses an above -mentioned mechanism design can improve the quality of hollow shaft, improves production efficiency, improves material utilization rate and reduction in production cost.
Description
Technical field
The utility model relates to extrusion technique field, particularly a kind of cold extrusion die for the production of having rectangle external splines hollow shaft.
Background technology
Along with the requirement of many plant equipment light-weight design is more and more higher, solid shafting is replaced by hollow shaft more and more, and such as, bearing pin on the jib of concrete pumping equipment have employed hollow-core construction more and more.Hollow shaft can alleviate complete vehicle weight.At present, the processing method with rectangle external splines hollow shaft is the rough turn processing of round bar+finish turning processing+milling rectangle external splines.High material consumption, the working (machining) efficiency of the rough turn and finish turning processing of round bar are extremely low; Rectangle external splines is formed by Milling Process, and the production efficiency of Milling Process rectangle external splines is not high, and the rectangle external splines bearing capacity of Milling Process low (because the metallic fiber streamline of spline teeth is cut off).Therefore, this processing method also exists the problems such as stock utilization is low, production efficiency is low, production cost is high, hollow bearing loading capability difference.
Utility model content
For above-mentioned deficiency, the purpose of this utility model is, provides a kind of cold extrusion die for the production of having rectangle external splines hollow shaft, can effectively improve stock utilization, enhance productivity, improve the quality of products and reduce production cost.
For achieving the above object, technical scheme provided by the utility model is:
For the production of the counterdie that the cold extrusion die with rectangle external splines hollow shaft comprises patrix and matches with patrix, patrix is installed on a hydraulic press, and counterdie is fixed on the work top of hydraulic press.Described patrix comprises cope match-plate pattern, upper bolster, patrix overcoat and drift, and described upper bolster is fixed at the lower surface of described cope match-plate pattern, and described patrix overcoat is fixed at the lower surface of upper bolster, and described drift is installed in outside patrix and puts; Described counterdie comprises lower bolster, die shoe, counterdie overcoat and lower mold core, described die shoe is fixed on lower bolster, described counterdie overcoat is fixed on lower bolster, described lower mold core is colded pressing by tapering interference fit and is loaded in counterdie overcoat, and lower mold core inside is provided with shaping die cavity, this forming cavity wall is provided with multiple forming part with rectangular channel, and described lower bolster and the corresponding described shaping die cavity of die shoe offer discharge opening.
Improve as one of the present utility model, the patrix overcoat outer race of described patrix is provided with patrix seat ring, and this patrix seat ring is provided with upper molded plate and this upper molded plate is fixed on upper bolster.
Improve as one of the present utility model, be provided with patrix seat cushion in the middle part of described upper bolster, described patrix overcoat is fixed at the lower surface of patrix seat cushion.
Improve as one of the present utility model, described drift adopts high carbon and chromium tool steel, and described lower mold core adopts low-carbon high-speed steel.
Improve as one of the present utility model, described lower bolster comprises lower loading plate, lower bolster, counterdie liner plate, counterdie backing plate and lower die-cushion from bottom to up successively, offer described discharge opening in the middle part of described lower loading plate, lower bolster, counterdie liner plate, counterdie backing plate and lower die-cushion, described die shoe is installed in lower die-cushion both sides and is fixed on described counterdie backing plate.
Improve as one of the present utility model, described die shoe outer race is provided with counterdie seat ring, and counterdie seat ring and described counterdie backing plate keep at a certain distance away.
Improve as one of the present utility model, described lower mold core is installed on lower die-cushion, and shaping die cavity is connected with described discharge opening, and counterdie overcoat is concordant with the upper surface of lower mold core.
Improve as one of the present utility model, outside described counterdie overcoat and lower mold core, be arranged with counterdie retainer plate.
Improve as one of the present utility model, the diameter of described drift lower end is less than the diameter of described shaping die cavity.
The beneficial effects of the utility model are: drift described in the utility model is installed in outside patrix and puts, described counterdie comprises lower bolster, die shoe, counterdie overcoat and lower mold core, described die shoe is fixed on lower bolster, described counterdie overcoat is fixed on lower bolster, described lower mold core is colded pressing by tapering interference fit and is loaded in counterdie overcoat, and lower mold core inside is provided with shaping die cavity, this forming cavity wall is provided with multiple moulding section with rectangular channel, and described template and the corresponding described forming cavity of die shoe offer discharge opening.The utility model adopt said mechanism design can improve produced hollow shaft product quality, enhance productivity, improve stock utilization and reduce production cost.
Below in conjunction with accompanying drawing and embodiment, the utility model is further illustrated.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model hollow shaft.
In figure, each description of reference numerals is as follows.
Inner layer glass-1, cope match-plate pattern-11, upper bolster-12, patrix seat cushion-121, patrix overcoat-13, drift-14, patrix seat ring-15, upper molded plate-16, counterdie-2, lower loading plate-211, lower bolster-212, counterdie liner plate-213, counterdie backing plate-214, lower die-cushion-215, die shoe-22, counterdie overcoat-23, lower mold core-24, shaping die cavity-241, forming part-242, counterdie seat ring-25, counterdie retainer plate-26, discharge opening-27.
Detailed description of the invention
By describing technology contents of the present utility model, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with embodiment.
Refer to Fig. 1, the counterdie 2 that a kind of cold extrusion die for the production of having rectangle external splines hollow shaft comprises patrix 1 and matches with patrix 1, patrix 1 is arranged on the slide block of hydraulic press, and counterdie 2 is fixed on the work top of hydraulic press.Described patrix 1 comprises cope match-plate pattern 11, upper bolster 12, patrix overcoat 13 and drift 14, described upper bolster 12 is fixed at the lower surface of described cope match-plate pattern 11, described patrix overcoat 13 is fixed at the lower surface of upper bolster 12, and described drift is installed on patrix overcoat 13.Described counterdie 2 comprises lower bolster, die shoe 22, counterdie overcoat 23 and lower mold core 24, described die shoe 22 is fixed on lower bolster 21, described counterdie overcoat 23 is fixed on lower bolster, described lower mold core 24 is colded pressing by tapering interference fit and is loaded in counterdie overcoat 23, and lower mold core 24 inside is provided with shaping die cavity 241, this shaping die cavity 241 inwall is provided with multiple forming part 242 with rectangular channel, and described lower bolster and the corresponding described shaping die cavity 241 of die shoe 22 offer discharge opening 27.In the present embodiment, described drift 14 adopts high carbon and chromium tool steel, and described lower mold core 24 adopts low-carbon high-speed steel.
In the present embodiment, the diameter of described drift 14 lower end is less than the diameter of described shaping die cavity 241.
Particularly, patrix overcoat 13 outer race of described patrix 1 is provided with patrix seat ring 15, and this patrix seat ring 15 is provided with upper molded plate 16 and this upper molded plate 16 is fixed on upper bolster 12.
Be provided with patrix seat cushion 121 in the middle part of described upper bolster 12, described patrix overcoat 13 is fixed at the lower surface of patrix seat cushion 121.
Please continue to refer to Fig. 1, described lower bolster comprises lower loading plate 211, lower bolster 212, counterdie liner plate 213, counterdie backing plate 214 and lower die-cushion 215 from bottom to up successively.Offer described discharge opening 27 in the middle part of described lower loading plate 211, lower bolster 212, counterdie liner plate 213, counterdie backing plate 214 and lower die-cushion 215, described die shoe 22 is installed in lower die-cushion 215 both sides and is fixed on described counterdie backing plate 214.
Particularly, described die shoe 22 outer race is provided with counterdie seat ring 25, and counterdie seat ring 25 and described counterdie backing plate 214 keep at a certain distance away.
Described lower mold core 24 is installed on lower die-cushion 215, and shaping die cavity 241 is connected with described discharge opening 27, and counterdie overcoat 23 is concordant with the upper surface of lower mold core 24.
Counterdie retainer plate 26 is arranged with outside described counterdie overcoat 23 and lower mold core 24.
A kind of cold extrusion die for the production of having rectangle external splines hollow shaft of the utility model, be installed in a hydraulic press (not shown), its course of work is: the power supply opening hydraulic press, primer fluid press; Be arranged on the slide block of hydraulic press by the patrix 1 of described cold extrusion die, counterdie 2 is fixed on the work top of hydraulic press, and ensure patrix 1 and counterdie 2 axiality good; The travel switch position of regulator solution press, ensures that the stroke of slider of hydraulic press meets forming technology requirement.First pressing backhaul switch and the ejection system backhaul switch of hydraulic press, by slider of hydraulic press backhaul, ejection system backhaul, then being positioned in the shaping die cavity 241 of counterdie 2 by being extruded blank; Then, press the compacting switch of hydraulic press, slider of hydraulic press will move downward, and drive patrix 1 moves downward by moving downward of slider of hydraulic press, and the drift 14 in patrix 1 carries out extrusion molding to being extruded blank; Stopping moved downward when slider of hydraulic press moves to the travel switch position of setting, drift 14 also completes cold-extrusion shaping, and the hollow shaft of cold-extrusion shaping is from the discharging of described discharge opening 27; Press the backhaul switch of hydraulic press, along with the backhaul of slider of hydraulic press, the patrix 1 be arranged on slider of hydraulic press drives drift 14 also backhaul, gets back to initial position;
As mentioned above, drift described in the utility model is installed on patrix overcoat 13, described counterdie 2 comprises lower bolster, die shoe 22, counterdie overcoat 23 and lower mold core 24, described die shoe 22 is fixed on lower bolster, described counterdie overcoat 23 is fixed on lower bolster, described lower mold core 24 is colded pressing by tapering interference fit and is loaded in counterdie overcoat 23, and lower mold core 24 inside is provided with shaping die cavity 241, this shaping die cavity 241 inwall is provided with multiple forming part 242 with rectangular channel, and described template and the corresponding described forming cavity 241 of die shoe 22 offer discharge opening 27.The utility model adopt said mechanism design can improve produced hollow shaft product quality, enhance productivity, improve stock utilization and reduce production cost.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also change above-mentioned embodiment and revise.Therefore, the utility model is not limited to detailed description of the invention disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this description, these terms just for convenience of description, do not form any restriction to the utility model, adopt other device same or analogous with it, all in the utility model protection domain.
Claims (9)
1. one kind for the production of the cold extrusion die with rectangle external splines hollow shaft, it is characterized in that: the counterdie (2) comprising patrix (1) and match with patrix (1), patrix (1) is arranged on a hydraulic press, counterdie (2) is fixed on the work top of hydraulic press, described patrix (1) comprises cope match-plate pattern (11), upper bolster (12), patrix overcoat (13) and drift (14), described upper bolster (12) is fixed at the lower surface of described cope match-plate pattern (11), described patrix overcoat (13) is fixed at the lower surface of upper bolster (12), described drift is installed on patrix overcoat (13), described counterdie (2) comprises lower bolster, die shoe (22), counterdie overcoat (23) and lower mold core (24), described die shoe (22) is fixed on lower bolster, described counterdie overcoat (23) is fixed on lower bolster, described lower mold core (24) is colded pressing by tapering interference fit and is loaded in counterdie overcoat (23), and lower mold core (24) inside is provided with shaping die cavity (241), this shaping die cavity (241) inwall is provided with multiple forming part (242) with rectangular channel, described lower bolster and the corresponding described forming cavity (241) of die shoe (22) offer discharge opening (27).
2. a kind of cold extrusion die for the production of having rectangle external splines hollow shaft as claimed in claim 1, it is characterized in that: patrix overcoat (13) outer race of described patrix (1) is provided with patrix seat ring (15), this patrix seat ring (15) is provided with upper molded plate (16) and this upper molded plate (16) is fixed on upper bolster (12).
3. a kind of cold extrusion die for the production of having rectangle external splines hollow shaft as claimed in claim 1, it is characterized in that: described upper bolster (12) middle part is provided with patrix seat cushion (121), and described patrix overcoat (13) is fixed at the lower surface of patrix seat cushion (121).
4. a kind of cold extrusion die for the production of having rectangle external splines hollow shaft as claimed in claim 1, is characterized in that: described drift (14) adopts high carbon and chromium tool steel, and described lower mold core (24) adopts low-carbon high-speed steel.
5. a kind of cold extrusion die for the production of having rectangle external splines hollow shaft as claimed in claim 1, it is characterized in that: described lower bolster comprises lower loading plate (211) from bottom to up successively, lower bolster (212), counterdie liner plate (213), counterdie backing plate (214) and lower die-cushion (215), described lower loading plate (211), lower bolster (212), counterdie liner plate (213), counterdie backing plate (214) and lower die-cushion (215) middle part offer described discharge opening (27), described die shoe (22) is installed in lower die-cushion (215) both sides and is fixed on described counterdie backing plate (214).
6. a kind of cold extrusion die for the production of having rectangle external splines hollow shaft as claimed in claim 5, it is characterized in that: described die shoe (22) outer race is provided with counterdie seat ring (25), and counterdie seat ring (25) and described counterdie backing plate (214) keep at a certain distance away.
7. a kind of cold extrusion die for the production of having rectangle external splines hollow shaft as claimed in claim 5, it is characterized in that: described lower mold core (24) is installed on lower die-cushion (215), and shaping die cavity (241) is connected with described discharge opening (27), counterdie overcoat (23) is concordant with the upper surface of lower mold core (24).
8. a kind of cold extrusion die for the production of having rectangle external splines hollow shaft as claimed in claim 7, is characterized in that: be arranged with counterdie retainer plate (26) outside described counterdie overcoat (23) and lower mold core (24).
9. a kind of cold extrusion die for the production of having rectangle external splines hollow shaft as claimed in claim 1, is characterized in that: the diameter of described drift (14) lower end is less than the diameter of described shaping die cavity (241).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520650856.3U CN204974785U (en) | 2015-08-26 | 2015-08-26 | A cold extruding die for producing rectangle external splines hollow shaft has |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520650856.3U CN204974785U (en) | 2015-08-26 | 2015-08-26 | A cold extruding die for producing rectangle external splines hollow shaft has |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204974785U true CN204974785U (en) | 2016-01-20 |
Family
ID=55109205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520650856.3U Expired - Fee Related CN204974785U (en) | 2015-08-26 | 2015-08-26 | A cold extruding die for producing rectangle external splines hollow shaft has |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204974785U (en) |
-
2015
- 2015-08-26 CN CN201520650856.3U patent/CN204974785U/en not_active Expired - Fee Related
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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: 20160120 Termination date: 20160826 |
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| CF01 | Termination of patent right due to non-payment of annual fee |