CN113650704A - Centering assembly method for vehicle steering wheel system - Google Patents
Centering assembly method for vehicle steering wheel system Download PDFInfo
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- CN113650704A CN113650704A CN202110878025.1A CN202110878025A CN113650704A CN 113650704 A CN113650704 A CN 113650704A CN 202110878025 A CN202110878025 A CN 202110878025A CN 113650704 A CN113650704 A CN 113650704A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 40
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- 238000012360 testing method Methods 0.000 description 3
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- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/024—Positioning of sub-units or components with respect to body shell or other sub-units or components
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Abstract
The invention relates to the technical field of automobile assembly, and discloses a centering assembly method for a vehicle steering wheel system, which comprises the following steps of S01, calculating the relative positions of all parts in the steering wheel system when the steering wheel is aligned and the vehicle can keep straight running, arranging a first scribed line on a steering knuckle and an I-beam respectively, arranging a second scribed line on a shell and an input shaft of a steering gear respectively, arranging a third scribed line on the steering gear and a steering transmission device respectively, and arranging a fourth scribed line on the steering transmission device and the steering wheel respectively; s02, assembling the steering knuckle, the I-shaped beam and the tire, and aligning the first scribed line; s03, assembling a steering drag link, a steering knuckle and a steering gear, loosening a clamp, adjusting the length of the steering drag link, and aligning a second scribed line; s04, tightening the clamp; s05, assembling a steering transmission device and a steering gear, and aligning a third line of sight; and S06, assembling the steering wheel and the steering transmission device into a whole, and aligning the fourth scribed line. The running stability of the vehicle is improved.
Description
Technical Field
The invention relates to the technical field of automobile assembly, in particular to a centering assembly method for a vehicle steering wheel system.
Background
The steering wheel system of commercial car generally includes front axle, the steering gear, turn to the drag link, turn to transmission, the steering wheel, wherein when the steering wheel system is assembled to the production line, the workman generally needs the knuckle of front axle, the I-beam of front axle, the steering gear, turn to the drag link, turn to transmission, the steering wheel carries out centering positioning operation to ensure that the angle that leaves factory's vehicle steering wheel for the directive wheel left turn limit is the same with the right turn limit, when the car owner swings the steering wheel to the intermediate position, even do not change the angular position of steering wheel, the vehicle can keep straight line to go, and if the steering wheel system does not carry out centering positioning operation, when the steering wheel was swung to the right, the car can deflect to a direction and go, wants that the car straight line to go can only be rotated the steering wheel to certain angle always and then go.
At present, a simple and quick steering wheel system centering adjustment method with good repeatability and consistency is not formed in the field of commercial vehicles, and a conventional centering adjustment method needs complex detection and adjustment of a machine, so that the whole steering wheel system is long in assembly process, and does not meet the situation that the current commercial vehicle is required to be fast in delivery cycle and high in production efficiency.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a simple and quick steering wheel system centering adjustment method is not formed in the field of commercial vehicles.
In order to solve the technical problems, the invention provides a vehicle steering wheel system centering assembly method, which comprises the following steps of S01, calculating the relative positions of all parts in the steering wheel system when the steering wheel is in a correct position and the vehicle can keep running straight, taking all the relative positions as an assembly standard, arranging a first scribed line on a steering knuckle and an I-beam, arranging a second scribed line on a shell of a steering gear and an input shaft of the steering gear, arranging a third scribed line on the steering gear and a steering transmission device, and arranging a fourth scribed line on the steering transmission device and the steering wheel respectively, so that two first scribed lines are aligned, two second scribed lines are aligned, two third scribed lines are aligned, and two fourth scribed lines are aligned under the assembly standard; s02, assembling the steering knuckle, the I-shaped beam and the tire into a whole, adjusting the position of the tire, and aligning the two first scribed lines; s03, assembling the steering drag link, the steering knuckle and the steering gear into a whole, loosening a clamp at the joint of the steering drag link and the steering knuckle, adjusting the length of the steering drag link on the premise of ensuring that the two first scribed lines are aligned, and aligning the two second scribed lines; s04, tightening a clamp at the rear end of the steering drag link; s05, assembling the steering transmission device and the steering gear into a whole, and aligning the two third scribed lines; and S06, assembling the steering wheel and the steering transmission device into a whole, and aligning the two fourth scribed lines.
Further, in step S02, after the knuckle, the i-beam, and the tire are assembled into one, the front axle is adjusted to be left-right symmetric.
Further, the error range of the front axle left-right symmetry is controlled within 0.5 degree.
Furthermore, after the front axle is bilaterally symmetrical, the toe-in is adjusted to enable the toe-in value to be within 0-2 mm.
Furthermore, the first scribing line is located at the joint of the steering knuckle and the I-shaped beam, the second scribing line is located at the joint of the steering gear shell and the steering gear input shaft, the third scribing line is located at the joint of the steering gear and the steering transmission device, and the fourth scribing line is located at the joint of the steering transmission device and the steering wheel.
Further, the second scribe line is located at the rear end of a connection position of the steering gear housing and the steering gear input shaft, the third scribe line is located at the rear end of a connection position of the steering gear and the steering transmission device, and the fourth scribe line is located at the rear end of a connection position of the steering transmission device and the steering wheel.
Further, the first scribed line is located at the front end of the joint of the steering knuckle and the I-shaped beam.
Further, in step S01, a three-dimensional model of the vehicle steering wheel system is created according to an assembly standard, a first reticle, a second reticle, a third reticle and a fourth reticle are added to the three-dimensional model, and then each component of the vehicle steering wheel system is manufactured according to the three-dimensional model.
Compared with the prior art, the centering assembly method for the vehicle steering wheel system has the beneficial effects that: the assembly method is characterized in that the position of a first scribed line for clear adjustment is added at the steering knuckle and an I-beam through clear assembly standards, the position of a second scribed line for clear adjustment is added at the input shaft and the shell of the steering gear after the length of a steering straight-pull rod is adjusted, the position of a front axle and the steering gear can be in the assembly standards by adjusting the length of the straight-pull rod, and finally a steering wheel is centrally assembled after the alignment is completed, so that the front axle and the steering gear can be in the middle position in the driving process of the vehicle, the driving stability of the vehicle is improved, the whole assembly method is simple to operate, clear in assembly target, can be repeatedly adjusted, has good adjustment consistency, can be visually detected whether the front axle and the steering gear are in place or not, can be detected whether the front axle and the steering gear are in place or not by using simple tools such as rulers, does not need to use excessive complex equipment for adjustment, can improve the straight-line driving stability of the vehicle, and is verified by multiple test tests, after the assembly method is adopted for assembly, the straight-line running performance of the vehicle can be improved by more than 30%, and the effect is remarkable.
Drawings
Fig. 1 is a schematic view of the overall structure of a steering wheel system;
FIG. 2 is a schematic structural view of a front axle;
FIG. 3 is an enlarged partial schematic view of FIG. 2;
FIG. 4 is a schematic view of the construction of the diverter;
FIG. 5 is a schematic view of the steering gear;
FIG. 6 is an enlarged partial schematic view of this FIG. 5;
fig. 7 is a schematic view of the connection of the steering wheel to the steering gear.
In the figure, 1, a front axle; 11. a knuckle; 12. an I-beam; 13. a tire; 2. a diverter; 21. a housing; 22. an input shaft; 3. a steering drag link; 31. a clamping hoop; 4. a steering transmission device; 41. a universal joint; 5. a steering wheel; 6. a first reticle; 7. a second reticle; 8. a third reticle; 9. and a fourth reticle.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", etc., used herein to indicate the orientation or positional relationship, are based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 3, a vehicle steering wheel system centering assembly method according to a preferred embodiment of the present invention includes a front axle 1, a steering gear 2, a steering drag link 3, a steering gear 4, a steering wheel 5, wherein the front axle 1 includes a knuckle 11 and an i-beam 12, and a tire 13, wherein the front axle 1, the steering gear 2, the steering drag link 3, the steering gear 4, and the steering wheel 5 are all basic conventional configurations of the vehicle steering wheel system.
As shown in fig. 1-7, the vehicle steering wheel system centering assembly method includes the following steps, S01, calculating the relative position of each component in the steering wheel system under the condition that the vehicle can keep running straight after the steering wheel 5 is centered, wherein the relative position needs to be detailed in the angle relationship between each rotatable component and the adjacent other components, taking the relative position of all the components under the condition as the assembly standard, arranging a first scribed line 6 on each of the knuckle 11 and the i-beam 12, arranging a second scribed line 7 on each of the housing 21 of the steering gear 2 and the input shaft 22 of the steering gear 2, arranging a third scribed line 8 on each of the steering gear 2 and the steering transmission 4, arranging a fourth scribed line 9 on each of the steering transmission 4 and the steering wheel 5, and ensuring that under the assembly standard, the two first score lines 6 are aligned, the two second score lines 7 are aligned, the two third score lines 8 are aligned, the two fourth score lines 9 are aligned, and the reversing disc is in a centered position. Before scribing, a three-dimensional model of the vehicle steering wheel system is established according to an assembly standard, a first scribing line 6, a second scribing line 7, a third scribing line 8 and a fourth scribing line 9 are added on the three-dimensional model, then an engineering drawing is manufactured by taking the three-dimensional model as a standard, and the engineering drawing is delivered to a part production factory for customized production, so that each part of the vehicle steering wheel system is manufactured. The first, second, third and fourth scribed lines 6, 7, 8, 9 may be lines drawn by a color pen or laser-drawn lines.
And S02, assembling the steering knuckle 11, the I-shaped beam 12 and the tire 13 into a whole, and firstly, completing the initial assembly of the steering knuckle 11, the I-shaped beam 12 and the tire 13, wherein the mode for assembling the steering knuckle 11, the I-shaped beam 12 and the tire 13 can adopt the conventional technical means. After assembly, the position of the tire 13 is adjusted, and the knuckle 11 is rotationally adjusted so that the first score line 6 on the knuckle 11 is aligned with the first score line 6 on the i-beam 12. S03, assembling the steering straight pull rod 3, the steering knuckle 11 and the steering gear 2 into a whole, completing the primary assembly of the steering straight pull rod 3, the steering knuckle 11 and the steering gear 2, loosening the clamp 31 at the joint of the steering straight pull rod 3 and the steering knuckle 11 in the debugging stage, adjusting the length of the steering straight pull rod 3 under the condition of ensuring that two first scribed lines 6 are aligned, and rotating the input shaft 22 of the steering gear 2 to align the second scribed line 7 on the input shaft 22 of the steering gear 2 with the second scribed line 7 on the shell 21 of the steering gear 2. S04, tightening the clamp 31 at the rear end of the steering drag link 3 to fix the length of the steering drag link 3, thereby completing the adjustment of the chassis mechanism of the steering wheel system.
And S05, assembling the steering transmission device 4 and the steering gear 2 into a whole, completing the initial assembly of the steering transmission device 4 and the steering gear 2, and rotating the steering transmission device 4 to align the third scribed line 8 on the steering transmission device 4 with the third scribed line 8 of the steering gear 2. And S06, assembling the steering wheel 5 and the steering transmission device 4 into a whole, completing the initial assembly of the steering wheel 5 and the steering transmission device 4, and adjusting the angle of the steering wheel 5 to align the fourth scribed line 9 on the steering transmission device 4 with the fourth scribed line 9 on the steering wheel 5. Finally, the alignment of the first scribed line 6, the second scribed line 7, the third scribed line 8 and the fourth scribed line 9 is checked, and all the scribed lines can be aligned in pairs.
In step S02, after the knuckle 11, the i-beam 12, and the tire 13 are assembled into a whole, the front axle 1 is adjusted to make the front axle 1 bilaterally symmetrical, and the knuckle 11 and the i-beam 12 are adjusted while the bilateral symmetry of the front axle 1 is ensured, so as to avoid that the two first scribed lines 6 are mutually offset and cannot be aligned in the process of adjusting the symmetry of the front axle 1, wherein the error range of the bilateral symmetry of the front axle 1 is controlled within 0.5 degrees, and the steering wheel 5 is observed by naked eyes when the assembled steering wheel system is used for straight driving, and the steering wheel 5 is in a centered state.
To sum up, the embodiment of the present invention provides a vehicle steering wheel system centering assembly method, which adds a first scribed line 6 at a steering knuckle 11 and an i-beam 12 for a definite position adjustment by a definite assembly standard, adds a second scribed line 7 at an input shaft 22 of a steering gear 2 and a housing 21 for a definite position adjustment after adjusting the length of a steering drag link 3, realizes that both a front axle 1 and a steering gear 2 can be in the assembly standard by adjusting the length of the drag link, and finally centrally assembles a steering wheel 5 after the alignment is completed, thereby realizing that both the front axle 1 and the steering gear 2 can be in the middle position during the driving of a vehicle, improving the driving stability of the vehicle, the whole assembly method is simple to operate, the assembly target is definite and can be repeatedly adjusted, the adjustment consistency is good, the adjustment can be detected by visual inspection whether the alignment is in place, and a simple tool such as a ruler can be used for detecting whether the adjustment is in place, the straight-line running stability of the vehicle can be improved without using excessive complex equipment for adjustment, and according to multiple test verifications, after the assembly method is adopted for assembly, the straight-line running stability of the vehicle can be improved by more than 30%, and the effect is obvious.
As shown in fig. 1-4, after the front axle 1 is adjusted to make the front axle 1 symmetrical left and right, the toe-in is adjusted to make the toe-in value within 0-2 mm, and the toe-in value is controlled within the range, and the vehicle after the assembly can be ensured to walk straight as long as the steering wheel 5 is centered by matching with the alignment of the steering knuckle 11 and the i-beam 12, the alignment of the shell 21 of the steering gear 2 and the input shaft 22 of the steering gear 2, the alignment of the steering gear 2 and the steering transmission device 4, and the alignment of the steering transmission device 4 and the steering wheel 5.
As shown in fig. 3, the two first scribed lines 6 are located at the joint of the knuckle 11 and the i-beam 12, and the first scribed lines 6 are arranged at the joint to facilitate identifying whether the two first scribed lines 6 are aligned, so that when a worker assembles the knuckle 11 and the i-beam 12, the worker can directly use a measuring tool to overlap the joint of the knuckle 11 and the i-beam 12 to measure the first scribed lines 6. As shown in fig. 4, the second scribed line 7 is located at the joint of the housing 21 of the steering gear 2 and the input shaft 22 of the steering gear 2, and the second scribed line 7 is located at the joint to facilitate identifying whether the two second scribed lines 7 are aligned, so that a worker can directly use a measuring tool to ride on the input shaft 22 of the steering gear 2 to measure the second scribed line 7 when adjusting the steering gear 2. As shown in fig. 6, the third scribed line 8 is located at the joint of the steering gear 2 and the steering transmission device 4, and the third scribed line 8 is arranged at the joint to facilitate identifying whether the two third scribed lines 8 are aligned, so that when a worker assembles the steering gear 2 and the steering transmission device 4, the worker can directly use a measuring tool to lap the joint of the steering gear 2 and the steering transmission device 4 to measure the third scribed line 8.
As shown in fig. 7, the fourth scribed line 9 is located at the joint of the steering transmission device 4 and the steering wheel 5, and the fourth scribed line 9 is arranged at the joint to facilitate identifying whether the two fourth scribed lines 9 are aligned, so that when a worker assembles the steering transmission device 4 and the steering wheel 5, the worker can directly use a measuring tool to carry out measurement on the fourth scribed line 9 at the joint of the steering transmission device 4 and the steering wheel 5.
As shown in fig. 3-7, the second scribed line 7 is located at the rear end of the junction between the casing 21 of the steering gear 2 and the input shaft 22 of the steering gear 2, and the third scribed line 8 is located at the rear end of the junction between the steering gear 2 and the steering gear 4, wherein the second scribed line 7 on the casing 21 of the steering gear 2 is the same as the third scribed line 8 on the casing 21 of the steering gear 2, the third scribed line 8 on the steering gear 4 is located on the universal joint 41 on the steering gear 4, and the fourth scribed line 9 is located at the rear end of the junction between the steering gear 4 and the steering wheel 5, and the second scribed line 7, the third scribed line 8 and the fourth scribed line 9 are located at the rear of the vehicle, so that a worker can more conveniently and quickly check whether the second scribed line 7, the third scribed line 8 and the fourth scribed line 9 are accurately aligned after the steering wheel system is integrally assembled, the assembly period of the whole automobile is saved. In addition, the first scribed line 6 is located at the front end of the joint of the knuckle 11 and the i-beam 12, and parts around the front end of the i-beam 12 are fewer than parts in other directions, so that a worker can conveniently extend a measuring tool to the position of the first scribed line 6 when adjusting the knuckle 11 and the i-beam 12.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (8)
1. A method of centering a vehicle steering wheel system, comprising the steps of:
s01, calculating the relative positions of all parts in a steering wheel system when the steering wheel is in a correct position and the vehicle can keep running straight, taking all the relative positions as an assembly standard, arranging a first scribed line on a steering knuckle and an I-beam respectively, arranging a second scribed line on a shell of a steering gear and an input shaft of the steering gear respectively, arranging a third scribed line on the steering gear and a steering transmission device respectively, and arranging a fourth scribed line on the steering transmission device and the steering wheel respectively, so that under the assembly standard, two first scribed lines are aligned, two second scribed lines are aligned, two third scribed lines are aligned, and two fourth scribed lines are aligned;
s02, assembling the steering knuckle, the I-shaped beam and the tire into a whole, adjusting the position of the tire, and aligning the two first scribed lines;
s03, assembling the steering drag link, the steering knuckle and the steering gear into a whole, loosening a clamp at the joint of the steering drag link and the steering knuckle, adjusting the length of the steering drag link on the premise of ensuring that the two first scribed lines are aligned, and aligning the two second scribed lines;
s04, tightening a clamp at the rear end of the steering drag link;
s05, assembling the steering transmission device and the steering gear into a whole, and aligning the two third scribed lines;
and S06, assembling the steering wheel and the steering transmission device into a whole, and aligning the two fourth scribed lines.
2. The vehicle steering wheel system centering assembly method according to claim 1, characterized in that: in step S02, after the knuckle, the i-beam, and the tire are assembled into one, the front axle is adjusted to be left-right symmetric.
3. The vehicle steering wheel system centering assembly method according to claim 2, characterized in that: the error range of the bilateral symmetry of the front axle is controlled within 0.5 degree.
4. The vehicle steering wheel system centering assembly method according to claim 2, characterized in that: after the front axle is bilaterally symmetrical, the toe-in value is adjusted to be within 0-2 mm.
5. The vehicle steering wheel system centering assembly method according to claim 1, characterized in that: the first scribing line is located at the joint of the steering knuckle and the I-shaped beam, the second scribing line is located at the joint of the steering gear shell and the steering gear input shaft, the third scribing line is located at the joint of the steering gear and the steering transmission device, and the fourth scribing line is located at the joint of the steering transmission device and the steering wheel.
6. The vehicle steering wheel system centering assembly method of claim 5, wherein: the second reticle is positioned at the rear end of the joint of the steering gear shell and the steering gear input shaft, the third reticle is positioned at the rear end of the joint of the steering gear and the steering transmission device, and the fourth reticle is positioned at the rear end of the joint of the steering transmission device and the steering wheel.
7. The vehicle steering wheel system centering assembly method of claim 6, wherein: the first scribed line is positioned at the front end of the joint of the steering knuckle and the I-shaped beam.
8. The vehicle steering wheel system centering assembly method according to claim 1, characterized in that: in step S01, a three-dimensional model of the vehicle steering wheel system is created based on the assembly criteria, a first reticle, a second reticle, a third reticle, and a fourth reticle are added to the three-dimensional model, and then each component of the vehicle steering wheel system is manufactured based on the three-dimensional model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110878025.1A CN113650704A (en) | 2021-07-30 | 2021-07-30 | Centering assembly method for vehicle steering wheel system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110878025.1A CN113650704A (en) | 2021-07-30 | 2021-07-30 | Centering assembly method for vehicle steering wheel system |
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| CN113650704A true CN113650704A (en) | 2021-11-16 |
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| CN202110878025.1A Pending CN113650704A (en) | 2021-07-30 | 2021-07-30 | Centering assembly method for vehicle steering wheel system |
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2021
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