CN205599838U - Cold forging mould and system of steering spindle - Google Patents
Cold forging mould and system of steering spindle Download PDFInfo
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- CN205599838U CN205599838U CN201620054820.3U CN201620054820U CN205599838U CN 205599838 U CN205599838 U CN 205599838U CN 201620054820 U CN201620054820 U CN 201620054820U CN 205599838 U CN205599838 U CN 205599838U
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- steering spindle
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- extrusion die
- cold forging
- drift
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Abstract
The utility model discloses a cold forging mould of steering spindle relates to steering spindle processing technology field. The cold forging mould of this steering spindle includes: an extrusion die subassembly for once extrude the blank, obtain the blank that has the steering spindle appearance, the 2nd extrusion die subassembly for carry out the secondary extrusion to the blank both ends after once extrudeing and form waist hole and centre bore, obtain the steering spindle. The utility model provides a cold forging mould of steering spindle adopts twice extruded mode to form the steering spindle, and the waist hole size that takes shape is stable, the precision is high, and the process is simple, the high and die life height of material utilization rate. Propose to have the cold forging system of the steering spindle of above -mentioned cold forging mould simultaneously.
Description
Technical field
This utility model relates to steering spindle processing technique field, more specifically discloses cold forging die and the system of a kind of steering spindle.
Background technology
Steering spindle is the core component of automobile steering system, and the good and bad direct relation of its performance traffic and personal safety.The end of steering spindle be provided with for plug-in mounting spool end homalocephalus and tolerable spool relative to steering spindle Double-directional rotary to open the waist hole of the angular displacement of switching valve.In hydraulic power steering gear, the steering spindle axle of the spool of distributing valve and driving tooth bar is connected together.As depicted in figs. 1 and 2, cell wall A, B, C and D face, both sides of waist hole 1 width and vertical axial plane are set as the angle of about 4 ° 20 ', with allow spool can the angular displacement of Double-directional rotary about 4 ° 20 ', thus change leakage channel and the vent flow of switching valve.This angle precision requires high, and easily deforms during follow-up carburizing and quenching.Traditional process for machining, the intensity that moment of torsion is born in waist hole is low, wastes material, inefficiency, and the waist hole precision of common cold-forging forming is inadequate, needs para-position shaping, inefficiency, easily makes mistakes, and quality is the most unstable.
Utility model content
A purpose of the present utility model is, proposes the cold forging die of a kind of steering spindle, and the problem that intensity is low, steering spindle working (machining) efficiency is low of moment of torsion is born in the waist hole formed to solve in prior art tradition machining.
Another purpose of the present utility model is, proposes the cold forging system of a kind of steering spindle, and this system uses cold forging die as above, the problem low to solve steering spindle working (machining) efficiency present in prior art.
For reaching this purpose, on the one hand, this utility model by the following technical solutions:
A kind of cold forging die of steering spindle, including:
First extrusion die assembly, for once extruding blank, it is thus achieved that have the blank of steering spindle profile；
Second extrusion die assembly, forms waist hole and centre bore for the blank two ends after once extruding are carried out secondary extrusion, it is thus achieved that steering spindle.
Described first extrusion die assembly includes:
First extrusion die, has first die cavity suitable with steering spindle profile in it；
First extruding drift, to obtain the blank with steering spindle profile in the first die cavity that blank is clamp-oned described first extrusion die；
Described second extrusion die assembly includes:
Second extrusion die, has second die cavity suitable with steering spindle profile in it；
Extruding drift on second, in being opposite to described second die cavity, the first end face extruding of blank forms waist hole and upper centre bore；
Second time extruding drift, the second end face extruding of the blank for being opposite in described second die cavity forms lower centre bore.
Preferably, described first extrusion die and/or described second extrusion die include at least double-layer structure being set-located.
Preferably, described first extrusion die includes that ecto-entad is sequentially sleeved at coil assembly and the first core rod assembly in the first prestressing force outer ring together, the first prestressing force；
Prestressing force centre circle and the first lower prestress centre circle on first that in described first prestressing force, coil assembly includes being docking together；
Described first core rod assembly includes the first upper mold core and the first lower mold core being docking together, and the internal cavities docking of described first upper mold core and described first lower mold core forms described first die cavity.
Preferably, described second extrusion die includes that ecto-entad is sequentially sleeved at coil assembly and the second core rod assembly in the second prestressing force outer ring together, the second prestressing force；
Prestressing force centre circle and the second lower prestress centre circle on second that in described second prestressing force, coil assembly includes being docking together；
Described second core rod assembly includes the second upper mold core and the second lower mold core being docking together, and the internal cavities docking of described second upper mold core and described second lower mold core forms described second die cavity.
Preferably, extrude drift on described second and be arranged at the first end of described second extrusion die；
Extruding drift on described second include drift outer ring and be sheathed on the drift core rod in described drift outer ring, described drift outer ring penetrates in described second die cavity, and the end shape of described drift core rod is suitable with described waist-hole type shape.
Preferably, the material of described drift core rod is that powder metallurgy is firm.
Preferably, the second end relative with its first end on described second extrusion die is provided with cushion block, and described second time extruding drift is in described cushion block penetrates described second die cavity.
Preferably, the material of described first extrusion die and/or described second extrusion die is high-speed tool steel.
For reaching above-mentioned purpose, on the other hand, this utility model is by the following technical solutions:
The cold forging system of a kind of steering spindle, including at least two station arranged in toggle joint type, wherein, the first station arranges the first extrusion die assembly of cold forging die as above, and the second station arranges the second extrusion die assembly of cold forging die as above；
Described first station and described second station are simultaneously operable.
The beneficial effects of the utility model are:
The cold forging die of the steering spindle that this utility model provides uses the mode of twice extruding to form steering spindle, and waist hole dimension formed thereby is stable, precision is high, and operation is simple, and stock utilization is high and die life is high.
The cold forging system of the steering spindle that this utility model provides uses above-mentioned cold forging die, it is obtained in that the steering spindle that quality is high, further, since there is at least two station and station is simultaneously operable, automated production can be realized and substantially increase the production efficiency of steering spindle.
Accompanying drawing explanation
Fig. 1 is the front view of steering spindle；
Fig. 2 is the left view of steering spindle；
Fig. 3 is the sectional view of the first extrusion die assembly that this utility model embodiment one provides；
Fig. 4 is the sectional view of the second extrusion die assembly that this utility model embodiment one provides.
In figure:
1, waist hole；2, centre bore；
31, the first extrusion die；311, the first prestressing force outer ring；3121, prestressing force centre circle on first；3122, the first lower prestress centre circle；3131, the first upper mold core；3132, the first lower mold core；32, the first extruding drift；41, the second extrusion die；411, the second prestressing force outer ring；4121, prestressing force centre circle on second；4122, the second lower prestress centre circle；4131, the second upper mold core；4132, the second lower mold core；421, drift outer ring；422, drift core rod；43, second time extruding drift；5, cushion block；6, blank.
Detailed description of the invention
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by detailed description of the invention.
The utility model proposes the cold forging die of a kind of steering spindle, it includes the first extrusion die assembly and the second extrusion die assembly.Wherein, the first extrusion die assembly is for once extruding blank, it is thus achieved that have the blank of steering spindle profile；Second extrusion die assembly forms waist hole and centre bore for the blank two ends after once extruding are carried out secondary extrusion, it is thus achieved that steering spindle.
The cold forging die of the steering spindle that this utility model provides forms steering spindle by cold forging mode and by twice extruding, and waist hole dimension formed thereby is stable, precision is high, and operation is simple, and stock utilization is high and die life is high.
Embodiment one
The present embodiment proposes the cold forging die of a kind of steering spindle, and it includes the first extrusion die assembly and the second extrusion die assembly.
As it is shown on figure 3, the first extrusion die assembly includes the first extrusion die 31 and the first extruding drift 32.First extrusion die 31 is internally provided with first die cavity suitable with steering spindle profile.First extruding drift 32 has the blank 6 of steering spindle profile in the first die cavity that blank 6 is clamp-oned the first extrusion die 31 with acquisition.
In a preferred embodiment, the first extrusion die 31 includes at least two-layer prestressed structure being set-located.It is further preferred that the first extrusion die 31 includes that ecto-entad is sequentially sleeved at coil assembly and the first core rod assembly in first prestressing force outer ring the 311, first prestressing force together.Prestressing force centre circle 3121 and the first lower prestress centre circle 3122 on first that in first prestressing force, coil assembly includes being docking together.First core rod assembly includes the first upper mold core 3131 and the first lower mold core 3132 being docking together, and the internal cavities docking of the first upper mold core 3131 and the first lower mold core 3132 forms the first die cavity.
In a preferred embodiment, the first extrusion die 31 uses high-speed tool steel to make, it is ensured that the intensity of mould and life-span.
As shown in Figure 4, the second extrusion die assembly includes extruding on the second extrusion die 41, second drift and second time extruding drift 43.Wherein, the second extrusion die 41 is internally provided with second die cavity suitable with steering spindle profile.Extrude drift first end face extruding of blank 6 in being opposite to the second die cavity on second and form waist hole 1 as shown in figs. 1 and 2 and upper centre bore 2.Second time extruding drift 43 centre bore 2 under the second end face extruding formation of the blank 6 being opposite in the second die cavity.
In a preferred embodiment, the second extrusion die 41 includes at least two-layer prestressed structure being set-located.It is further preferred that the second extrusion die includes that ecto-entad is sequentially sleeved at coil assembly and the second core rod assembly in second prestressing force outer ring the 411, second prestressing force together.Prestressing force centre circle 4121 and the second lower prestress centre circle 4122 on second that in second prestressing force, coil assembly includes being docking together.Second core rod assembly includes the second upper mold core 4131 and the second lower mold core 4132 being docking together, and the internal cavities docking of the second upper mold core 4131 and the second lower mold core 4132 forms the second die cavity.
Extrude drift on second and be arranged at the first end of the second extrusion die 41, it is preferred to use hierarchical floating mold insert structure, select high-strength powder metallurgical steel to make, and use coating technology, improve forming quality and the dimensional stability in waist hole 1.Concrete, extruding drift on second and include drift outer ring 421 and the drift core rod 422 being sheathed in drift outer ring 421, drift outer ring 421 penetrates in the second die cavity, and the end shape of drift core rod 422 is suitable with waist hole 1 shape.
The second end relative with its first end on second extrusion die 41 is provided with cushion block 5, and second time extruding drift 43 is in cushion block 5 penetrates the second die cavity.
In a preferred embodiment, the second extrusion die 41 uses high-speed tool steel to make, it is ensured that the intensity of mould and life-span.
Further, also include shaping mould, for carrying out shaping before blank 6 is extruded.
The process of the cold forging die processing steering spindle that the present embodiment provides is:
1, Shape correction: by shaping mould by blank 6 shaping, shaped after blank 6 end face and the squareness tolerance 0.10mm of axis within, within parallelism tolerance 0.05mm of both ends of the surface；
2, the most crowded, the most once extruding: the blank 6 after shaping is clamp-oned in the first die cavity of the first extrusion die 31 by the first extruding drift 32, blank 6 carries out undergauge process, to obtain, there is the blank 6 of steering spindle profile, control the butt end length tolerance of blank 6 within ± 0.10mm；
3, anti-waist hole 1 and the upper and lower centre bore 2, i.e. secondary extrusion of squeezing: the drift core rod 422 extruding drift on second forms waist hole 1 and upper centre bore 2 to the first end face extruding of the blank 6 after just squeezing, and squeezes for second time
Pressure drift 43 forms lower centre bore 2 to the second end face extruding of the blank 6 after just squeezing, thus obtains steering spindle finished product.
Embodiment two:
Present embodiments provide the cold forging system of a kind of steering spindle, including at least two station arranged in toggle joint type, wherein, first station arranges the first extrusion die assembly of the cold forging die as described in embodiment one, and the second station arranges the second extrusion die assembly of the cold forging die as described in embodiment one.First station and the second station are simultaneously operable.
The cold forging system of steering spindle that the present embodiment provides is obtained in that the steering spindle that quality is high, further, since have at least two station and station is simultaneously operable, can realize automated production and substantially increase the production efficiency of steering spindle.
In a preferred embodiment, this cold forging system includes three stations arranged in toggle joint type, and wherein, the first station arranges the first extrusion die assembly, and the second station arranges the second extrusion die assembly, and the 3rd station arranges shaping mould.Three stations are simultaneously operable.
Describing know-why of the present utility model above in association with specific embodiment, these descriptions are intended merely to explain principle of the present utility model, it is impossible to be construed to the restriction to this utility model protection domain by any way.Based on explaining herein, those skilled in the art need not pay performing creative labour can associate other detailed description of the invention of the present utility model, within these modes fall within protection domain of the present utility model.
Claims (9)
1. the cold forging die of a steering spindle, it is characterised in that including:
First extrusion die assembly, for once extruding blank, it is thus achieved that have the blank of steering spindle profile；
Second extrusion die assembly, forms waist hole (1) and centre bore (2) for the blank two ends after once extruding are carried out secondary extrusion, it is thus achieved that steering spindle；
Described first extrusion die assembly includes:
First extrusion die (31), has first die cavity suitable with steering spindle profile in it；
First extruding drift (32), to obtain the blank (6) with steering spindle profile in the first die cavity that blank (6) is clamp-oned described first extrusion die (31)；
Described second extrusion die assembly includes:
Second extrusion die (41), has second die cavity suitable with steering spindle profile in it；
Extrude drift on second, be used for being opposite to the first end face extruding of blank (6) in described second die cavity and form waist hole (1) and upper centre bore (2)；
Second time extruding drift (43), the second end face extruding of the blank (6) for being opposite in described second die cavity forms lower centre bore (2).
The cold forging die of steering spindle the most according to claim 1, it is characterised in that: described first extrusion die (31) and/or described second extrusion die (41) include at least double-layer structure being set-located.
The cold forging die of steering spindle the most according to claim 2, it is characterised in that: described first extrusion die (31) includes that ecto-entad is sequentially sleeved at coil assembly and the first core rod assembly in the first prestressing force outer ring (311) together, the first prestressing force；
Prestressing force centre circle (3121) and the first lower prestress centre circle (3122) on first that in described first prestressing force, coil assembly includes being docking together；
Described first core rod assembly includes the first upper mold core (3131) and the first lower mold core (3132) being docking together, and the internal cavities docking of described first upper mold core (3131) and described first lower mold core (3132) forms described first die cavity.
The cold forging die of steering spindle the most according to claim 2, it is characterised in that: described second extrusion die includes that ecto-entad is sequentially sleeved at coil assembly and the second core rod assembly in the second prestressing force outer ring (411) together, the second prestressing force；
Prestressing force centre circle (4121) and the second lower prestress centre circle (4122) on second that in described second prestressing force, coil assembly includes being docking together；
Described second core rod assembly includes the second upper mold core (4131) and the second lower mold core (4132) being docking together, and the internal cavities docking of described second upper mold core (4131) and described second lower mold core (4132) forms described second die cavity.
The cold forging die of steering spindle the most according to claim 1, it is characterised in that: extrude drift on described second and be arranged at the first end of described second extrusion die (41)；
Extrude drift on described second include drift outer ring (421) and be sheathed on the drift core rod (422) in described drift outer ring (421), described drift outer ring (421) penetrates in described second die cavity, and the end shape of described drift core rod (422) is suitable with described waist hole (1) shape.
The cold forging die of steering spindle the most according to claim 5, it is characterised in that: the material of described drift core rod (422) is that powder metallurgy is firm.
The cold forging die of steering spindle the most according to claim 5, it is characterized in that: upper second end relative with its first end of described second extrusion die (41) is provided with cushion block (5), and described second time extruding drift (43) is in described cushion block (5) penetrates described second die cavity.
8. according to the cold forging die of the steering spindle described in any one of claim 1 to 7, it is characterised in that: the material of described first extrusion die (31) and/or described second extrusion die (41) is high-speed tool steel.
9. the cold forging system of a steering spindle, it is characterized in that: include at least two station arranged in toggle joint type, wherein, first station arranges the first extrusion die assembly of the cold forging die as described in any one of claim 1 to 8, and the second station arranges the second extrusion die assembly of the cold forging die as described in any one of claim 1 to 8；
Described first station and described second station are simultaneously operable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620054820.3U CN205599838U (en) | 2016-01-20 | 2016-01-20 | Cold forging mould and system of steering spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620054820.3U CN205599838U (en) | 2016-01-20 | 2016-01-20 | Cold forging mould and system of steering spindle |
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| Publication Number | Publication Date |
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| CN205599838U true CN205599838U (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620054820.3U Active CN205599838U (en) | 2016-01-20 | 2016-01-20 | Cold forging mould and system of steering spindle |
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| CN (1) | CN205599838U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380805A (en) * | 2018-02-08 | 2018-08-10 | 江苏海宇机械有限公司 | The fine forging forming die of direction machine bolt |
| CN111014554A (en) * | 2019-12-30 | 2020-04-17 | 江苏理研科技股份有限公司 | Forging process and forging die for deep hole shaft head |
-
2016
- 2016-01-20 CN CN201620054820.3U patent/CN205599838U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380805A (en) * | 2018-02-08 | 2018-08-10 | 江苏海宇机械有限公司 | The fine forging forming die of direction machine bolt |
| CN108380805B (en) * | 2018-02-08 | 2023-11-24 | 江苏海宇机械有限公司 | Precision forging forming die for steering gear bolt |
| CN111014554A (en) * | 2019-12-30 | 2020-04-17 | 江苏理研科技股份有限公司 | Forging process and forging die for deep hole shaft head |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |