CN108526822A - A kind of production method of non-maintaining connector shell - Google Patents
A kind of production method of non-maintaining connector shell Download PDFInfo
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- CN108526822A CN108526822A CN201810325449.3A CN201810325449A CN108526822A CN 108526822 A CN108526822 A CN 108526822A CN 201810325449 A CN201810325449 A CN 201810325449A CN 108526822 A CN108526822 A CN 108526822A
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- ball
- connector shell
- grinding
- production method
- socket
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
A kind of production method of non-maintaining connector shell is used for spherojoint shell with ball-and-socket of the production application in the steering linkage of automobile, includes the following steps：Step 1, blanking；Step 2, heating；Step 3, forging molding；Step 4, normalizing；Step 5, roughing；Step 6, it is quenched；Step 7, half smart car；Step 8, high-frequency quenching；Step 9, lonneal；Step 10, swing grinding.By the way that the Internal Spherical Surface smart car in original technique is changed to swing grinding, spherojoint shell is on special tooling, on one side swing, while rotate, the rocking pin center of circle and spherojoint shell centre of sphere height are consistent, it is ground with spherical cubic boron nitride abrasive wheel, and overlapping curve is formed on spherical surface, while having the function of collection, eliminating wear debris and self-lubricating, makes it have the advantages of quality of production is stable, mechanics does not do very well after rapid wear, Maintenance free, general assembly.Production process has the advantages that production efficiency is high, need not safeguard that grinding wheel is cost-effective simultaneously.
Description
Technical field
The present invention relates to automobile steering system parts production and processing method technical field, more particularly to a kind of non-maintaining connect
The production method of head capsule.
Background technology
Steering linkage is the important part of automotive steering structure, it directly affects the stability of automobile operation, the peace of operation
Complete and tire service life, and the spherojoint assembly at pull rod both ends, the precision and geometric tolerance of manufacture directly affect pull rod
Various functions, spherojoint assembly are made of parts such as spherojoint shell, ball stud, spring capping, dust covers again.
In existing processing technology, spherojoint shell generally passes through blanking-heating-forging molding-normalizing-roughing-tune
The flow of-half smart car of matter-high-frequency quenching-lonneal-Internal Spherical Surface smart car is produced.Since Internal Spherical Surface quenching hardness reaches
HRC55-58, hardness is higher, and high rigidity lathe tool turning is used during Internal Spherical Surface smart car, and tool wear is very big, needs frequently
Allowing blade replacement, along with being influenced by tool arc, product contour accuracy that vehicle comes out it is difficult to ensure that, such spherojoint shell general assembly at
Steering assembly axial displacement and rotation torque out differs greatly afterwards, unstable quality, and the performance one of spherojoint shell is through not
It is required to expected, defect magnification level is very fast after long-term use.
Invention content
The purpose of the present invention is to provide a kind of production methods of non-maintaining connector shell, by the interior ball in original technique
Face smart car is changed to swing grinding, spherojoint shell on special tooling, on one side swing, while rotate, the rocking pin center of circle and ball connect
Head capsule centre of sphere height is consistent, and is ground with spherical cubic boron nitride abrasive wheel, and overlapping curve is formed on spherical surface, simultaneously
Have the function of collecting, eliminate wear debris and self-lubricating, makes it have quality of production stabilization, not rapid wear, Maintenance free, general assembly
The advantages of mechanics does very well afterwards.It is excellent that so that production process has, production efficiency is high simultaneously, need not to safeguard grinding wheel cost-effective
Point.
To realize goal of the invention, present invention employs following technical solutions：
A kind of production method of non-maintaining connector shell, connects for the ball with ball-and-socket of the production application in the steering linkage of automobile
Head capsule, which is characterized in that include the following steps：
Step 1, blanking；
Step 2, heating；
Step 3, forging molding；
Step 4, normalizing；
Step 5, roughing；
Step 6, it is quenched；
Step 7, half smart car；
Step 8, high-frequency quenching；
Step 9, lonneal；
Step 10, swing grinding.
In the blanking of the step 1 to the lonneal of the step 9, pass through step 2 heating, step 4 normalizing, step
The processing performance and final finished of rapid six quenched, step 8 high-frequency quenchings and the heat treatment improvement raw material of step 9 lonneal
Structure, at the same one blanking of matching step, step 3 forging molding, step 5 roughing, half smart car of step 7 produce it is outer
Shape size meets the semi-finished product of manuscript paper size requirement, and after producing semi-finished product by the swing grinding of step 10 by institute
State ball-and-socket grinding in place, compared with the prior art in turnery processing, grinding accuracy higher, surface forming better quality.Pendulum
The form of dynamic grinding ensures the processing of the quench-hardened case forming face contact generated to step 8 high-frequency quenching, point of a knife in opposite Vehicle Processing
Point contact machining the stress that finished surface is formed more is disperseed, avoid single locating excessively high stress and generate to break quench-hardened case
Bad, also avoiding being also easy to produce wave surface etc. when Lathe tool tip arc chord angle processes the ball-and-socket inner surface leads to surface quality
The problem of decline.Meanwhile the loss of the opposite Lathe tool tip of loss of grinding wheel influences formed precision in small, the vehicle of opposite prior art
Have for processing from safeguarding, do not need to change process tool with and meanwhile improve production efficiency and the advantages of reduce cost.
As present invention further optimization, the swing grinding of the step 10 is ground using spherical grinding wheel,
The spherical shape grinding wheel includes bulb and rocking pin.
The bulb of the spherical shape grinding wheel makes its grinding action carry out face grinding to ball-and-socket inner surface in the same time, ensures
The stabilization of the final surface quality in ball-and-socket surface.Meanwhile ball contact is ground so that the abrasion of the bulb is also entire ball
The whole abrasion of head is still spherical that is, after its abrasion, avoid irregular wear cause in the ball-and-socket molded surface also with
Modification.The forming action of grinding lathe is transferred to the ball by the rocking pin for connecting the bulb and grinding lathe
Head.
As present invention further optimization, the spherical shape grinding wheel is cubic boron nitride abrasive wheel.
Cubic boron nitride has the advantages that hardness is high, nonabradable, the service life of the spherical grinding wheel is further increased, to reach
The purpose of cost is reduced to the non-maintaining efficiency that improves in process of production.
As present invention further optimization, the swing grinding of the step 10 includes that the bulb is located at the ball
The swing grinding to be formed and the bulb are swung around the swing pin axis with the rocking pin along the ball-and-socket surface in nest
The rotation grinding that rotation is formed.
The swing grinding is that the rocking pin is swung in fan-shaped in a plane, drives the bulb in the ball-and-socket
It swings, is ground all surfaces of the ball-and-socket on its swinging track in primary swing, ensures the stability of ground effect, lead to
That crosses the swinging plane circumferentially rotates the grinding that can be realized to entire ball-and-socket inner surface.The rotation grinding is i.e. in the swing
Grinding rotates synchronously the bulb when carrying out, on the one hand so that not stopping connecing for the bulb and ball-and-socket during swing grinding
Contacting surface avoids opposing stationary contact from leading to bulb part excessive wear, extends the bulb service life；On the other hand the bulb
Rotation form orthogonal two to being ground simultaneously in the ball-and-socket surface with swinging, improve ground effect, improve grinding effect
Rate.
As present invention further optimization, the swing center of circle of the rocking pin is overlapped with the ball-and-socket centre of sphere.
The swing center of circle of the rocking pin overlapped makes the rocking pin drive the bulb with the centre of sphere of the ball-and-socket
Its track is equal with the surface curvature of the ball-and-socket when doing swing grinding, ensure ground effect stabilization and efficiently.
As present invention further optimization, the spherical shape grinding wheel is when carrying out the swing grinding in the bulb and institute
The linear velocity for stating the contact position of ball-and-socket is 40-50m/s.
On the one hand the swing speed of 40-50m/s was unlikely to lead to be ground bradypragia influence efficiency and ground effect slowly；
On the other hand being unlikely to too fast leads to the bulb and ball-and-socket rapid wear due to excessive relative velocity.
As present invention further optimization, half smart car of the step 7 includes following substep：
Step by step one, ball-and-socket surface described in vehicle；
Step by step two, vehicle overlapping curve.
The substep one of half smart car of the step 7 is used to form the ball for the ball-and-socket for being easy to ten swing grinding of later step
Face；The substep two on the spherical surface for forming overlapping curve.
As present invention further optimization, the overlapping curve is distributed in the ball-and-socket surface.
The overlapping curve for being distributed in the ball-and-socket surface has the following advantages：First, in the power for maintaining spherojoint shell
Mitigate its weight while learning performance, improves the movement response speed and ability of the steering after general assembly；Secondly, it is distributed in institute
State the sky between ball-and-socket and ball stud in the course of work of the overlapping curve on ball-and-socket surface after the spherojoint general assembly
Between rotation provide guiding role, improve its working effect；Again, the overlapping curve is in ten swing grindings later the step of
The clast that grinding generates provides the channel of discharge, and the ball-and-socket is scratched to avoid clast from being entrained between the bulb and ball-and-socket
Surface.
Further include step 11 as present invention further optimization, the step 11 is in the overlapping curve
Fill lubricant.
Lubricant is filled in the overlapping curve makes the ball-and-socket have the effect of self-lubricating, nothing after general assembly assembly
Maintenance need to be carried out again.
As present invention further optimization, the lubricant is the lipid lubricant comprising powdered graphite.
The lipid lubricant can provide adhesion effect as the matrix of moulding solidification for the powdered graphite；Graphite powder
End has good wearability and heat resistanceheat resistant performance.
The beneficial effects of the present invention are：By the way that the Internal Spherical Surface smart car in original technique is changed to swing grinding, spherojoint
Shell on the special tooling, on one side swing, while rotate, the rocking pin center of circle and spherojoint shell centre of sphere height are consistent, with spherical shape
Cubic boron nitride abrasive wheel is ground, and overlapping curve is formed on spherical surface, while being had collection, being eliminated wear debris and oneself
The function of lubrication makes it have the advantages of quality of production is stable, mechanics does not do very well after rapid wear, Maintenance free, general assembly.Make simultaneously
Obtaining production process has the advantages that safeguard grinding wheel so that production efficiency is high, of low cost.
Specific implementation mode
A kind of production method of non-maintaining connector shell, for production application in the steering linkage of automobile with ball-and-socket
Spherojoint shell, includes the following steps：
Step 1, blanking；Round steel bar is cut to equidistant raw material round steel bar section.
Step 2, heating；820-850 degrees centigrades are heated the raw material to, for the temperature suitable for forging processing, this temperature
Degree can reduce the shaping resistance of raw material, reduce damage.
Step 3, forging molding；The cylindrical steel rods of raw material are forged to the outer shape of connector shell by forging；
Step 4, normalizing；The internal stress that forging is formed is eliminated by normalizing, while improving the toughness of connector hull shape raw material, for it
Pretreatment is carried out in roughing afterwards.
Step 5, roughing；The turning of connector hull shape raw material is extremely slightly larger than demand size by roughing, after convenient
Processing carries out.
Step 6, it is quenched；It is worth connector shell that integrally there is good comprehensive mechanical by quenched quenching and high tempering
Performance.
Step 7, half smart car；Half smart car by the turning of connector shell to the size for being similar to demand size substantially, after reducing
The cutting output of swing grinding improves production efficiency and reduces the loss to spherical grinding wheel.
Step 8, high-frequency quenching；Hardening depth is the surface of connector shell in 0.5-1.5mm in the high-frequency quenching of this step
It provides high rigidity brittleness small advantage, reduces its loss during general assembly later, work and reinforce its mechanical property.
Step 9, lonneal；Connector shell can be eliminated after high-frequency quenching by 150-250 degrees Celsius of lonneal
The quenching stress of generation, is formed simultaneously tempered martensite, and brittleness is reduced in the case where not reducing hardness, has and preferably avoids
Cracking, the ability deformed, while the stabilization of size can be kept.
Step 10, swing grinding.It will be refined to circularity≤0.005, light on the inside of the ball-and-socket of connector shell by swing grinding
Cleanliness reaches Ra0.4, has outstanding mechanical property and durability.
In the present embodiment, the swing grinding of step 10 is ground using spherical grinding wheel, and spherical grinding wheel includes bulb and pendulum
Dynamic pin.
In the present embodiment, spherical grinding wheel is cubic boron nitride abrasive wheel.
In the present embodiment, the swing grinding of step 10 includes that bulb is located in ball-and-socket along ball-and-socket surface with rocking pin swing shape
At swing grinding and bulb around swing pin axis rotate to be formed rotation grinding.
In the present embodiment, the swing center of circle of rocking pin is overlapped with the ball-and-socket centre of sphere.
In the present embodiment, spherical grinding wheel is 40- in the linear velocity of the contact position of bulb and ball-and-socket when carrying out swing grinding
50m/s。
In the present embodiment, half smart car of step 7 includes following substep：
Step by step one, vehicle ball-and-socket inner surface；
Step by step two, vehicle overlapping curve.
In the present embodiment, overlapping curve is distributed in ball-and-socket surface.
Further include step 11 in the present embodiment, step 11 is that lubricant is filled in overlapping curve.
In the present embodiment, lubricant is the lipid lubricant comprising powdered graphite.
Above example is only described the preferred embodiment of the present invention, not to the spirit and scope of the present invention
It is defined, under the premise of not departing from design concept of the present invention, ordinary people in the field makes technical scheme of the present invention
All variations and modifications, each fall within protection scope of the present invention, the claimed technology contents of the present invention, whole note
It carries in detail in the claims.
Claims (10)
1. a kind of production method of non-maintaining connector shell is used for ball with ball-and-socket of the production application in the steering linkage of automobile
Connector shell, which is characterized in that include the following steps：
Step 1, blanking；
Step 2, heating；
Step 3, forging molding；
Step 4, normalizing；
Step 5, roughing；
Step 6, it is quenched；
Step 7, half smart car；
Step 8, high-frequency quenching；
Step 9, lonneal；
Step 10, swing grinding.
2. a kind of production method of non-maintaining connector shell according to claim 1, which is characterized in that the institute of the step 10
It states swing grinding to be ground using spherical grinding wheel, the spherical shape grinding wheel includes bulb and rocking pin.
3. a kind of production method of non-maintaining connector shell according to claim 2, which is characterized in that it is described spherical shape grinding wheel be
Cubic boron nitride abrasive wheel.
4. a kind of production method of non-maintaining connector shell according to claim 2, which is characterized in that the institute of the step 10
It includes that the bulb is located in the ball-and-socket and swings the pendulum to be formed with the rocking pin along the ball-and-socket surface to state swing grinding
Dynamic grinding and the bulb rotate the rotation to be formed grinding around the swing pin axis.
5. a kind of production method of non-maintaining connector shell according to claim 4, which is characterized in that the pendulum of the rocking pin
The dynamic center of circle is overlapped with the ball-and-socket centre of sphere.
6. a kind of production method of non-maintaining connector shell according to claim 5, which is characterized in that the spherical shape grinding wheel exists
Linear velocity when carrying out the swing grinding in the bulb Yu the contact position of the ball-and-socket is 40-50m/s.
7. a kind of production method of non-maintaining connector shell according to claim 1, which is characterized in that the institute of the step 7
It includes following substep to state half smart car：
Step by step one, ball-and-socket surface described in vehicle；
Step by step two, vehicle overlapping curve.
8. a kind of production method of non-maintaining connector shell according to claim 7, which is characterized in that the overlapping curve is equal
It is distributed in the ball-and-socket surface.
9. a kind of production method of non-maintaining connector shell according to claim 1-8, which is characterized in that further include step 10
One, the step 11 is to fill lubricant in the overlapping curve.
10. a kind of production method of non-maintaining connector shell according to claim 9, which is characterized in that the lubricant is
Include the lipid lubricant of powdered graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810325449.3A CN108526822A (en) | 2018-04-12 | 2018-04-12 | A kind of production method of non-maintaining connector shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810325449.3A CN108526822A (en) | 2018-04-12 | 2018-04-12 | A kind of production method of non-maintaining connector shell |
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| Publication Number | Publication Date |
|---|---|
| CN108526822A true CN108526822A (en) | 2018-09-14 |
Family
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|---|---|---|---|
| CN201810325449.3A Pending CN108526822A (en) | 2018-04-12 | 2018-04-12 | A kind of production method of non-maintaining connector shell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110883506A (en) * | 2019-11-05 | 2020-03-17 | 如皋市大生线路器材有限公司 | Ball socket forging forming process |
| CN113494517A (en) * | 2021-07-16 | 2021-10-12 | 卓越紧固***（上海）有限公司 | Machining process of ball head assembly |
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Application publication date: 20180914 |
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