JPS6141793B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an assembly jig for use in assembling a vehicle axle, and more particularly, to an assembly jig for use in assembling a vehicle axle, and more particularly, the present invention relates to an assembly jig for assembling a vehicle axle, and more particularly, to an assembly jig for assembling a vehicle axle, and more particularly, the present invention relates to an assembly jig for assembling a vehicle axle. A gap is formed between the beam boss and the upper end surface of the beam boss, and in particular, a gap is formed between the upper end surface of the beam boss and the inner end surface of the upper nutcle boss, and while adjusting the gap, the , relates to an assembly jig used to rotatably connect the steering knuckle to the axle beam.

Traditionally, the axle of a vehicle, such as an automobile suspension system, has a beam boss of the axle beam located between the upper and lower nutcle bosses of the steering nutcle, and a king pin used to attach the axle beam to the axle beam. There is something that connects the steering nut.

When assembling this kind of axle, shims and bearings are interposed between the upper and lower nuticle bosses of the steering nutcle and the beam boss of the axle beam to adjust the clearance,
In particular, as the shim has been placed adjacent to the bearing, the thickness of the shim will be absorbed by the bearing's oil seal, resulting in
There was a problem that it became difficult to adjust the gap using the shim.

Also, in so connecting the steering knuckle to the axle beam via the king pin, the positioning of the shim and its bearing becomes uncertain, and the tip of the king pin is fitted In some cases, the hole for the king pin formed in the shim or bearing, that is, the edge of the hole, was damaged, and the oil seal of the bearing was also damaged.

An object of the present invention is to install shims for clearance adjustment in the assembly of an axle of a vehicle suspension system, so that shims are attached to the upper and lower steering knuckles.
between the boss and the beam boss of the axle beam, allowing for spaced apart from the bearing;
Furthermore, the accuracy of the gap adjustment between the upper and lower nuticle bosses and the beam boss is improved, the positioning of the bearing is made accurate, and damage to the bearing and the oil seal of the bearing are prevented. The purpose of the present invention is to provide an assembly jig for use in vehicle axles.

To this end, the assembly jig used for the vehicle axle of the present invention rotatably connects the steering knuckle to the axle beam via the king pin, and includes a through hole for the king pin. The steering knuckle is attached to the outer end surface of the lower knuckle boss, and the through hole is connected to the lower knuckle boss.
A base having a protrusion on its upper surface that fits into the king pin hole of the boss, and a beam of the axle beam located between the upper and lower nuttle bosses of the steering nutcle. A pair of jaws whose lower ends are attached to the base so as to sandwich the boss and its lower nutcle boss, and a pair of jaws disposed on the upper end side of the jaw so that it can be fitted into the lock pin hole of the beam boss. It consists of a hanger pin and a jack disposed on its base so as to be able to adjustably form a gap between the upper end surface of the beam boss and the inner end surface of the upper knuckle boss.

Hereinafter, preferred specific examples of the assembly jig used for the vehicle axle according to the present invention will be described with reference to the drawings.

1 to 5 show a specific example 10 of an assembly jig used for a vehicle axle according to the present invention, which is applied to a front axle 50 of an automobile.

The assembly jig 10 is the front axle 5
0, that is, it is used to rotatably connect the steering knuckle 52 to the axle beam 51 via the king pin 53, and the lower knuckle of the steering knuckle 52
A base 11 attached to the boss 60, a pair of jaws 12, 13 whose lower ends are rotatably connected to both sides of the base 11 via pins 28, and a pair of jaws 12, 13 arranged on the upper end side of the jaws 12, 13. hanger pins 14 and 15, a jack 16 disposed on its base 11, and a pair of bearing support arms 1 disposed on the body of its jaws 12 and 13.
7 and 18.

Its base 11 has a through hole 2 for a king pin 53, as can be seen from Figures 1 and 3.
1, and its steering nutcle 5
The outer end surface 6 of the lower knuckle boss 60 at 2
In order to align the through hole 21 with the king pin hole 62 of the lower knuckle boss 60 when attached to the lower knuckle boss 60, an annular protrusion 22 that is fitted into the king pin hole 62 is projected from the upper surface 19.

The base 11 also has arm portions 2 on both sides of the front.
3, 24, form notches 25, 26 in the arm parts 23, 24, insert the tenons 29, 30 of the jaws 12, 13 into the notches 25, 26, and remove the inserted tenons 29, 30. in order to rotatably connect the arms 23 and 2 through the pin 28.
A pin hole 27 is bored in 4.

Furthermore, the base 11 has a screw hole 42 for the jack 16 formed in the central portion of the front surface, and a bolt 43 of the jack 16 can be screwed into the screw hole 42 from the lower surface 20 of the base 11.

The pair of jaws 12 and 13 have a tenon 29 at the lower end,
30, and pin holes (not shown) are formed in the tenons 29 and 30, and the arm portions 23 and 24 of the base 11 are formed by the pin 28 that is passed through the pin holes.
when the base 11 rests against the outer end surface 65 of the lower knuckle boss 60 of the steering knuckle 52;
It is arranged on the base 11 so as to sandwich the beam boss 54 of the axle beam 51 and the lower knuckle boss 60 thereof, which are located between the upper and lower knuckle bosses 59 and 60 of the steering knuckle 52.

The jaws 12 and 13 also have guide holes 31 and 32 for the hanger pins 14 and 15 formed at their upper ends, and the hanger pins 14 and 15 fitted in the guide holes 31 and 32 are formed in the axial direction. Guide brackets 33 and 34 are screwed to the outer surface.

The guide holes 31, 32 are, of course, located in the locking position of the beam boss 54 of the axle beam 51 when the beam boss 54 of the axle beam 51 is positioned between the upper and lower knuckle bosses 59, 60 of the steering knuckle 52. In other words, the hanger pins 14, 15 are aligned with the pin holes 56.
The upper ends of the jaws 12 and 13 are drilled so that the lock pin hole 56 can be fitted into the lock pin hole 56.

Further, the jaws 12 and 13 are fixed in the illustrated positions, that is, in the upright vertical position and in the collapsed horizontal position, by leaf springs 35 and 36 screwed to the lower surface 20 of the base 11, respectively.

Further, the jaws 12 and 13 have bearing support arms 17 and 18 respectively attached to their bodies on the inside so as to face each other.
Axle beam 51 via king pin 53
When assembling the steering nutcle 52,
The lower nutcle boss 60 of the steering nutcle 52 and the beam of the axle beam 51
The bearing supporting arms 17 and 18 support the thrust bearing 38 disposed between the boss 54 and the bearing 38.
The arc-shaped support surface 37
is equipped inside.

The pair of hanger pins 14, 15 are attached to the stopper flange 39, as can be seen from FIG.
and a guide stem 40, the jaws 12, 13
is fitted in the guide holes 31, 32 so as to be able to reciprocate and slide,
Between its stop flange 39 and the guide brackets 33, 34, it is projected into the inside of the jaws 12, 13 by a compression-type coil spring 41 arranged around the guide stem 40.

The jack 16 has a screw hole 42 formed in the center of the front surface of its base 11;
The bolt 43 is screwed into the fourth
As shown in the figure, the base 11, the jaws 12, 13
and the inner end surface 6 of the upper knuckle boss 59 when the hanger pins 14, 15 are set in the lower knuckle boss 60 and the beam boss 54.
4 and the upper end surface 57 of the beam boss 54, the gap A is made adjustable, and the work of inserting the shim 44 into the gap A is facilitated.

In addition, as the gap A, that is, the upper knuckle-boss side gap A is adjusted, the lower end surface 58 of the beam boss 54 and the lower knuckle-boss side gap A are adjusted.
The gap between the boss 60 and the outer end surface 65, that is, the lower nutcle/boss side gap (bearing gap)
is also adjusted and attaches the steering knuckle 5 to the axle beam 51 via the king pin 53.
When assembling 2, the oil seal in the bearing 38 is prevented from being damaged.

Next, we will discuss the assembly work of the front axle 50 of an automobile using the assembly jig 10 configured as described above. Push the jack 16, that is, the bolt 4, into a horizontal position against the leaf springs 35 and 36 so as to separate from each other.
3 is retracted, while the steering knuckle 52 rests its bearing 38 on the inner end surface 66 of the lower knuckle boss 60.

Next, while fitting the annular projection 22 into the king pin hole 62, the base 11 is placed on the outer end surface 65 of the lower knuckle boss 60, and the pair of jaws 12,
13 to the vertical position, and its leaf springs 35, 36
, the jaws 12 and 13 are fixed in the upright position.

When the pair of jaws 12 and 13 are thus erected, the bearing 38 is sandwiched between the pair of bearing support arms 17 and 18 and aligned with the king pin hole 62 of the lower nutcle boss 60. , the through hole 21 in the base 11 is also aligned with the king pin hole 62 in the lower knuckle boss 60.

Subsequently, the steering knuckle 52 with the assembly jig 10 attached is attached to the axle beam 5.
Assemble to 1. In other words, the steering
Upper and lower nutacle bosses 5 of nutacle 52
When the beam boss 54 of the axle beam 51 is fitted between the axle beams 9 and 60, the pair of hanger pins 14 and 15 are retracted by the outer surface of the beam boss 54 during the fitting process. However, until the beam boss 54 is in place, the upper and lower nutacle bosses 59,6
0, the hanger pin 1
4 and 15 by the coil spring 41,
The pair of jaws 12 and 13 are fixed to the axle beam 51 by being pushed into the lock pin hole 56 of the beam boss 54.

Next, turn the bolt 43 in the tightening direction, and insert the tip of the bolt 43 into the outer end surface 65 of the lower nutcle boss 60.
Press it against the beam boss 54 and the lower nutcle.
While eliminating the gap between the boss 60 and the bearing 38, the upper end surface 5 of the beam boss 54
7 and the inner end surface 64 of the upper knuckle boss 59, a gap A, that is, an upper knuckle boss side gap A is formed.
Insert the appropriate shim 44 (appropriate thrust washer).

Thus, once the proper shims 44 are set, the king pin 53 is inserted into the upper knuckle boss 59.
The proper shim 44 is inserted into the king pin hole 62 of the lower nutcle boss 60 through the king pin hole 61 of the beam boss 54, passing through the king pin hole 55 of the beam boss 54, and the bearing 38.

Thereafter, by turning the bolt 43 in the loosening direction, the jaws 12 and 13 are separated from each other so as to remove the hanger pins 14 and 15 from the lock pin hole 56.
It is removed from the axle beam 51 and steering knuckle 52 while opening from each other in the horizontal direction, and a lock pin (not shown) is driven into the lock pin hole 56. In that way, lock
If the pin is driven in, the axle beam 5
1 and steering knuckle 52 are King
They are rotatably connected to each other via a pin 53.

According to the present invention having the above structure, when assembling an axle of a vehicle suspension system, a gap can be adjustable between the upper knuckle boss of the steering nutcle and the beam boss of the axle beam. Adjustment shims can be placed in the gap, and the accuracy of the gap adjustment between the upper and lower nutcle bosses of the steering nutcle and the beam boss of the axle beam is improved, and the shims and Accurate positioning of the thrust bearing located between the beam boss and its lower nutcle boss prevents damage to the bearing or damage to the bearing's oil seal, ensuring that the axle beam and steering The assembly work with the nut is easy and simple, and the work efficiency is improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an assembly jig used for a vehicle axle of the present invention applied to a front axle of an automobile, FIG. 2 is a front view of the assembly jig shown in FIG. 1, and FIG. 4 is a side view of the assembly jig showing the assembled state of the front axle of an automobile, and FIG. FIG. 3 is an axial cross-sectional view of the assembly jig and front axle in FIG. 10... Assembly jig used for vehicle axle, 1
1...Base, 12,13...Jiyo, 14,15...
Hanger pin, 16... Jacket, 17, 18...
Bearing support arm, 21... Through hole, 22... Annular projection, 35, 36... Leaf spring, 50... Automobile front axle, 51... Axle beam, 5
2...Steering Knuckle, 53...King Pin.

Claims (1)

[Scope of Claims] 1. A steering knuckle rotatably connected to the axle beam via a king pin, which is provided with a through hole for the king pin, and in which a lower knuckle is connected to the axle beam through a king pin. a base that is attached to the outer end surface of the boss and has a protrusion on its upper surface that is fitted into the king pin hole of the lower nutcle boss so that the through hole is aligned with the king pin hole of the lower nutcle boss; a beam boss of the axle beam located between the upper and lower knuckle bosses and a pair of jaws whose lower ends are attached to the base so as to sandwich the lower knuckle boss; and a lock pin of the beam boss. An adjustable gap is formed between a pair of hanger pins arranged on the upper end side of the beam boss, the upper end surface of the beam boss, and the inner end surface of the upper knuckle boss so that the beam boss can be fitted into the hole. An assembly jig for use on a vehicle axle, including a jack placed on its base, as shown in FIG.