CN204003890U - The automobile-used axisymmetric rod head that a kind of cold-extrusion technology is shaped - Google Patents

The automobile-used axisymmetric rod head that a kind of cold-extrusion technology is shaped Download PDF

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Publication number
CN204003890U
CN204003890U CN201420364071.5U CN201420364071U CN204003890U CN 204003890 U CN204003890 U CN 204003890U CN 201420364071 U CN201420364071 U CN 201420364071U CN 204003890 U CN204003890 U CN 204003890U
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China
Prior art keywords
joint
cylindrical
cold
die cavity
automobile
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CN201420364071.5U
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龚红英
李会肖
仇丹丹
姜民主
廖泽寰
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SHANGHAI DONGFU COLD-FORGING MANUFACTURE Co Ltd
Shanghai University of Engineering Science
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SHANGHAI DONGFU COLD-FORGING MANUFACTURE Co Ltd
Shanghai University of Engineering Science
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Abstract

The utility model relates to the automobile-used axisymmetric rod head that a kind of cold-extrusion technology is shaped, be used for connecting two joint outer parts, comprise integrated upper joint and lower joint, upper joint is the double-screw bolt for being threaded with one of them joint outer part, lower joint is a cylindrical body, double-screw bolt and cylindrical axis are the same line, cylindrical bottom is offered into for the die cavity with another one joint outer part butt, the bottom of die cavity is cylindrical, the top of die cavity is truncated cone, and the upper end of cylindrical side offers attachment face.Compared with prior art, the top of die cavity of the present utility model is 50 ° of inclined-planes, makes connection more firm, and is easy to adjust.Upper end in cylindrical body side offers attachment face, facilitates installation, dismounting and the replacing of this part in steering system, greatly increases part practicability.In addition, upper joint is offered into double-screw bolt, adopts thread connecting mode, has increased connection stability and soundness.

Description

The automobile-used axisymmetric rod head that a kind of cold-extrusion technology is shaped
Technical field
The utility model relates to a kind of rod head part, especially relates to the automobile-used axisymmetric rod head that a kind of cold-extrusion technology is shaped.
Background technique
Automotive pull rod joint part is link important in auto steerer, in work, need to bear alternate load, and keep the features such as the stability that connects and wearability, its intensity and reliability are directly connected to the Safety performance of automobile, so this link will have enough intensity, rigidity, reliability, wear resistance and working life.
Chinese patent CN202560802U has announced a kind of automotive pull rod joint, comprise main body, metal threaded pipe and metal clips, the preferred working of plastics of main body, top is semicylinder, bottom is cuboid, at left end, be processed with a circular hole, metal threaded pipe of castingin in circular hole, below main body right-hand member, also process from bottom to top a circular hole, the top of circular hole is hemispherical-shaped aperture, front and back at main body right-hand member, the groove of position processing that semicylinder is combined with cuboid, this groove along the circumferential direction from the top down, from main body outside, lead to the circular hole of the inside, metal clips is one and has flexible thin slice, top is semicircle, bottom is the V-arrangement of opening, at two openings, be respectively processed with the circular arc of an indent, the semicircle on metal clips top is enclosed within on the semicylinder on top, main body the right, the groove of bottom V-arrangement opening before and after main body outside, insert in the circular hole of main body right-hand member.This automotive pull rod joint is that disalignment arranges structure, and structure is comparatively complicated, manufactures difficulty.
Model utility content
The purpose of this utility model be exactly in order to overcome the defect that above-mentioned prior art exists, provide a kind of simple in structure, preparation process easily, remove and install conveniently, automobile-used axisymmetric rod head that cold-extrusion technology that stable connection is firm is shaped.
The purpose of this utility model can be achieved through the following technical solutions:
The automobile-used axisymmetric rod head that a kind of cold-extrusion technology is shaped, be used for connecting two joint outer parts, comprise integrated upper joint and lower joint, described upper joint is the double-screw bolt for being threaded with one of them joint outer part, described lower joint is a cylindrical body, described double-screw bolt and cylindrical axis are the same line, described cylindrical bottom is offered into for the die cavity with another one joint outer part butt, the bottom of described die cavity is cylindrical, the top of die cavity is truncated cone, the upper end of described cylindrical side offers attachment face.
The angle on the circular cone inclined-plane of described die cavity is 30~70 °.
As preferably, the angle on the circular cone inclined-plane of described die cavity is 50 °.
Described attachment face has eight, and hoop is all laid in the upper end of cylindrical side.
Described attachment face is rectangular surfaces.
The height of described attachment face is 1/6~1/3 of cylinder height.
The height of described double-screw bolt is 1/3~2/3 of cylinder height.
Compared with prior art, the utlity model has following advantage and beneficial effect:
(1) in the utility model, the top of die cavity is 30~70 ° of inclined-planes, makes connection more firm, and is easy to adjust.
(2) in the utility model, in the upper end of cylindrical body side, offer attachment face, facilitate installation, dismounting and the replacing of this part in steering system, greatly increase part practicability.In addition, the direct extrusion moulding of attachment face, does not increase process step.
(3) upper joint is offered into double-screw bolt, adopts thread connecting mode, has increased connection stability and soundness, and due to Design of Screw Thread dismounting and change at any time, has reduced the scrappage of part, reduces costs.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is main TV structure schematic diagram of the present utility model.
In figure, 1 is double-screw bolt, and 2 is cylindrical body, and 3 is attachment face, and 4 is die cavity, and 5 is inclined-plane.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment
The automobile-used axisymmetric rod head that a kind of cold-extrusion technology is shaped, as shown in Figure 1 and Figure 2, be used for connecting two joint outer parts, comprise integrated upper joint and lower joint, upper joint is the double-screw bolt 1 for being threaded with one of them joint outer part, adopts thread connecting mode, connection stability and soundness have been increased, and due to Design of Screw Thread dismounting and change at any time, reduced the scrappage of part, reduced costs.Lower joint is a cylindrical body 2, and double-screw bolt 1 is the same line with the axis of cylindrical body 2, and the height of double-screw bolt 1 is 1/3~2/3 of cylindrical body 2 height.The bottom of cylindrical body 2 is offered into for the die cavity 4 with another one joint outer part butt, and the bottom of die cavity 4 is cylindrical, and the top of die cavity 4 is truncated cone, and the angle on the circular cone inclined-plane 5 of die cavity 4 is 50 °, and the top of die cavity 4 is 50.Inclined-plane, makes connection more firm, and is easy to adjust.The upper end of the side of cylindrical body 2 offers attachment face 3.Attachment face 3 has eight, and hoop is all laid in the upper end of the side of cylindrical body 2.Attachment face 3 is rectangular surfaces.The height of attachment face 3 is 1/6~1/3 of cylindrical body 2 height.Attachment face 3 facilitates installation, dismounting and the replacing of this part in steering system, greatly increases part practicability.In addition, the direct extrusion moulding of attachment face, does not increase process step.
In the present embodiment, automobile adopts cold-extrusion shaping method moulding with axisymmetric rod head, comprises blanking, annealing, ball blast, phosphatization saponification, base, swaging, phosphatization saponification, cold extrusion shaped, machining processes, specifically comprises the following steps:
(1) prepare rod head blank (blanking):
In step (1), prepare the size of the front calculative determination blank of rod head blank, by the method for sawing, round steel is carried out to blanking, obtain rod head blank;
(2) blank is annealed and is made its softening (annealing):
Process conditions are: under nitrogen atmosphere protection, at 860 ℃, be incubated 8 hours, cool to subsequently 450 ℃ with the furnace and come out of the stove below;
(3) blank after annealing is carried out to Shot Blasting to eliminate burr and scale (ball blast):
Process conditions are: the pill that is 0.6-1.0mm with diameter is processed 10 minutes, make blank surface non-scale, rusty stain surface color light evenly;
(4) blank after Shot Blasting is carried out to phosphatization saponification (phosphatization saponification):
Process conditions comprise the following steps successively: degreasing 5 minutes, Cold Wash 0.5 minute, Hot Wash 0.5 minute, pickling 5 minutes, Cold Wash 0.5 minute, Hot Wash 0.5 minute, phosphatization 10 minutes, Cold Wash 0.5 minute, Hot Wash 0.5 minute, saponification 3 minutes, dewatered drying 2 minutes;
(5) blank after step (4) processing is put into blanking mold base and obtain blank (base);
(6) blank is carried out to swaging (swaging):
Process conditions are: on LIC400 cold extrusion press, pressure-shaped mould is installed and is pushed, exerting pressure is 5~6Kg/cm 2, speed is 40~50spm;
(7) blank is carried out to phosphatization saponification (phosphatization saponification): the same step of process conditions (4);
(8) blank is placed on to cold-extrusion shaping in forming die (cold-extrusion shaping):
Process conditions are: on LIC400 cold extrusion press, forming die is installed and is pushed, exerting pressure is 5~6Kg/cm 2, speed is 40~50spm;
(9) part after being shaped is carried out to machining, be prepared into axisymmetric rod head as shown in Figure 1 and Figure 2.
Step (5) and step (6) base and swaging, make metal have good mobility to guarantee the required precision of drip molding.
Adopt axisymmetric rod head part that above-mentioned technique prepares as shown in Figure 1 and Figure 2, part mechanical property is good.
Adopt in addition above-mentioned extrusion method for producing to carry out the production of rod head part, can make production technology more perfect, stock utilization is high, tratitional technology discharge quantity 0.39Kg, and employing cold extrusion technology discharge quantity is 0.225Kg, saves material 42.3%.Part mechanical property is good, and after extruding, the product strength that obtains improves greatly, and cost of production is low, and equipment needed thereby tonnage is low, meets modern times " green manufacturing " requirement, has huge social benefit.
The above-mentioned description to embodiment is can understand and use model utility for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiments, and General Principle described herein is applied in other embodiments and needn't passes through performing creative labour.Therefore, the utility model is not limited to above-described embodiment, and those skilled in the art are according to announcement of the present utility model, and not departing from the improvement that the utility model category makes and revise all should be within protection domain of the present utility model.

Claims (7)

1. the automobile-used axisymmetric rod head that a cold-extrusion technology is shaped, be used for connecting two joint outer parts, it is characterized in that, comprise integrated upper joint and lower joint, described upper joint is the double-screw bolt for being threaded with one of them joint outer part, described lower joint is a cylindrical body, described double-screw bolt and cylindrical axis are the same line, described cylindrical bottom is offered into for the die cavity with another one joint outer part butt, the bottom of described die cavity is cylindrical, the top of die cavity is truncated cone, the upper end of described cylindrical side offers attachment face.
2. the automobile-used axisymmetric rod head that a kind of cold-extrusion technology according to claim 1 is shaped, is characterized in that, the angle on the circular cone inclined-plane of described die cavity is 30~70 °.
3. the automobile-used axisymmetric rod head that a kind of cold-extrusion technology according to claim 2 is shaped, is characterized in that, the angle on the circular cone inclined-plane of described die cavity is 50 °.
4. the automobile-used axisymmetric rod head that a kind of cold-extrusion technology according to claim 1 is shaped, is characterized in that, described attachment face has eight, and hoop is all laid in the upper end of cylindrical side.
5. the automobile-used axisymmetric rod head that a kind of cold-extrusion technology according to claim 1 is shaped, is characterized in that, described attachment face is rectangular surfaces.
6. the automobile-used axisymmetric rod head that a kind of cold-extrusion technology according to claim 1 is shaped, is characterized in that, the height of described attachment face is cylinder height 1/6~1/3.
7. the automobile-used axisymmetric rod head that a kind of cold-extrusion technology according to claim 1 is shaped, is characterized in that, the height of described double-screw bolt is cylinder height 1/3~2/3.
CN201420364071.5U 2014-07-02 2014-07-02 The automobile-used axisymmetric rod head that a kind of cold-extrusion technology is shaped Active CN204003890U (en)

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CN201420364071.5U CN204003890U (en) 2014-07-02 2014-07-02 The automobile-used axisymmetric rod head that a kind of cold-extrusion technology is shaped

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105840607A (en) * 2016-04-28 2016-08-10 苏州市林氏精密五金标准件制造有限公司 Special-shaped sleeve connecting part

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105840607A (en) * 2016-04-28 2016-08-10 苏州市林氏精密五金标准件制造有限公司 Special-shaped sleeve connecting part

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