KR20120074532A - Combining method of spindle plate using sub plate, spindle apparatus combined spindle plate using sub plate and suspension apparatus for vehicle mounted spindle plate using sub plate - Google Patents

Abstract

PURPOSE: A coupling method for a spindle plate by using a sub plate, a spindle device coupled with a spindle plate by using a sub plate, and a suspension device coupled with a spindle plate by using a sub plate are provided to omit additional mechanical processes for a spindle plate through coupling a sub plate in advance and then coupling a spindle plate and a sub plate by using a coupling member. CONSTITUTION: A spindle device coupled with a spindle plate by using a sub plate comprises a trailing arm(10), a sub plate(20), a spindle plate(30), and a coupling unit. The trailing arm is coupled with the both ends of a torsion beam(2). The sub plate comprises a through hole in the center portion. The spindle plate is fitted with the sub plate and comprises a mounting hole in the center portion. The coupling unit is composed of pin bolts and couples the sub plate and the spindle plate.

Description

Combining method of spindle plate using sub plate, spindle apparatus combined spindle plate using sub plate using Sub Plate and Suspension Apparatus for Vehicle mounted Spindle Plate using Sub Plate}

The present invention relates to a spindle device to which a spindle plate is coupled using a subplate, a spindle plate coupling method, and a suspension device to which a spindle plate is mounted using a subplate. More particularly, the present invention relates to a method and a combined structure for joining a spindle plate using a subplate after joining the spindle plate without the need for a separate machining process.

In general, the suspension of the vehicle is connected between the axle and the vehicle body to appropriately attenuate vibrations or shocks received from the road surface while driving, and to improve the damage of the vehicle body and the ride comfort of the occupant. That is, the suspension provides flexibility in the up and down direction of the vehicle so that the vehicle body is not affected by the roughness of the road surface. In addition, the suspension system keeps the wheels at the proper steering and camber positions on the road surface while maintaining irregular wheels, and responds to the horizontal and lateral forces generated by the wheels, and to the braking and driving forces. It will act to suppress.

Among these suspensions, the coupled torsion beam axle (Coupled Torsion Beam Axle, CTBA) type has a structure in which a torsion bar is coupled inside a U- or V-shaped torsion beam. Have When torsion beams alone, it is difficult to support the roll stiffness of the vehicle, so additional torsion bars are installed.

That is, such a torsion bar is provided inside the torsion beam in parallel with the longitudinal direction of the torsion beam, and is configured to suppress roll stiffness and torsion during rolling of the vehicle. Therefore, the torsion bar controls the rolling by generating a torsion to both end portions when both wheels are alternately operated left and right (up and down) and back and forth (that is, when wheel center phase difference occurs between both wheels).

1 is a perspective view schematically showing a vehicle 100 equipped with a suspension device 1 of a CTBA type. As shown in FIG. 1, the suspension device 1 is coupled to each of the torsion beams 2 and the torsion beams 2 installed to connect both wheels, and the torsion bar 3 is inserted therein, and is coupled to each other. And a pair of trailing arms 10 for controlling the vertical force and a shock absorber for buffering the external force generated from the road surface.

The torsion beam 2 and the trailing arm 10 are coupled by welding one end of the inner surface of the trailing arm 10 in contact with the end of the torsion beam 2. In addition, the torsion bar 3 is inserted into a hole penetrated from the inside of the trailing arm 10 to the outside, and the part which is in contact with the outer periphery of the end of the torsion bar 3 and the outer surface of the trailing arm 10 is welded. The torsion bar and the trailing arm 10 are combined.

2A shows a perspective view of the trailing arm 10 to which the spindle plate 30 is coupled in a conventional manner, and FIG. 2B shows a perspective view of the trailing arm 10 to which the spindle plate 30 is coupled in a conventional manner from the rear. It is shown. As shown in Figure 2a and 2b, the trailing arm 10 is welded to the end of the torsion beam (2) is coupled. The trailing arm 10 is provided with a front trailing arm equipped with a bush 13 to which the vehicle body is coupled, and a trailing trailing arm for controlling the vertical motion.

In addition, the rear trailing arm is coupled to the bracket 14 for mounting the coil spring, the spindle plate 30 is coupled to the outer end of the trailing arm. The tire is coupled to the outside of the spindle plate 30 by a bearing.

The suspension device 1 makes the outer ring of the front wheel toe-out and the outer ring of the rear wheel toe-in to secure steering stability during turning of the vehicle. However, during toner, a tendency for the outer ring of the rear wheel to toe out due to the lateral force applied from the ground. That is, the vehicle's tipping phenomenon occurs when the inner ring directly affects the outer ring during turning. Therefore, in the case of the spindle plate 30, the toe angle and the camber angle must be precisely adjusted within the 0.01 mm tolerance.

However, in the conventional coupling method of the spindle plate 30, as shown in Figure 2b, the entire outer surface of the contact surface of the inner surface of the spindle plate 30 and the outer surface of the trailing arm 10 is combined by the welding portion (4). . In the conventional spindle plate 30 processing and joining method, after welding the joint to form the spindle plate 30 to the trailing arm by welding, the machining step is performed. Alternatively, the manufactured spindle plate is coupled to the outer surface of the trailing arm through an ARC welding process.

However, when such a welding process is performed, machining errors are generated by welding. Therefore, in order to satisfy the tolerance of the required alignment (toe-in, camber), the surface of the spindle plate 30 must be machined (surface machining, drilling, tap processing, etc.) after welding. That is, since the range of the tolerance to be satisfied in the spindle plate 30 exceeds the deformation distribution by the heat input after welding, the tolerance must be satisfied by machining the spindle plate 30 after welding.

This machining process will include as many as 13 to 4 processes. For example, if the process is carried out in four steps, the surface finishing process (the surface tilting process of the capber, the surface tilting process of the tow-in)-the drilling process-the tap processing process-the chamfering process It can be composed of). As another example, when the process is carried out in 13 steps, it may be composed of two-step grinding process-back surface grinding process-upper surface grinding process-drilling three process-tap three process-chamfering two process.

Therefore, it is moved by such multi-steps (4 to 13 steps) and processed by a dedicated machining facility, and therefore, the cumulative tolerances generated by transferring the process (changes in machining standards for each process and cumulative tolerances according to machine accuracy by process) Etc.) may not satisfy the degree of machining. In addition, by configuring the machining process of 4 to 14 process, excessive investment cost of the product production line is generated, there is a problem that is not economical.

Therefore, the method of joining a spindle plate that can increase the machining efficiency of the spindle plate by reducing the machining process investment cost by reducing the multi-process machining, and reducing the cumulative tolerance by reducing the process process, such a spindle plate coupling structure and such There was a need for a suspension that was combined in a way.

Therefore, the present invention has been made to solve the above problems, according to an embodiment of the present invention, by first coupling the sub-plate, by fastening the spindle plate to the sub-plate by the fastening means, after the fastening There is no need for a separate machining process on the spindle plate, providing a more efficient process.

In addition, by fastening the spindle plate by the fastening means, not by welding, no separate machining procedure is required after the fastening, so that the spindle plate can be economically and quickly combined. In addition, cumulative errors are not generated due to multiple processes, thereby providing more sophisticated machining efficiency.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings.

A first object of the present invention is a method of joining a spindle plate by using a subplate, wherein a subplate having a central hole is brought into contact with one end of a trailing arm outer surface of a suspension device, Bonding the subplate to the trailing arm; Machining to form a toe angle and a camber angle on the subplate; Conforming the inner surface of the manufactured spindle plate to the outer surface of the machined subplate; And fastening the subplate and the spindle plate by the fastening means. A spindle plate coupling method using the subplate may be achieved.

The machining step may be characterized in that it comprises the step of tabulating the outer surface of the sub-plate and the tab working.

The face grinding operation includes: a camber processing step for forming a camber angle on a subplate by camber processing means; And a toe-in machining step for forming a toe-angle on the subplate by the toe-in processing means.

A second object of the present invention is a spindle device provided with a suspension device, comprising: a trailing arm coupled to both ends of a torsion beam; A sub-plate having an inner surface welded to one end of an outer surface of the trailing arm and a center hole at the center and an outer surface processed in a state where the inner surface is coupled; A spindle plate having a shape-aligned outer surface and an inner surface of the sub plate and having a mounting hole formed in the center thereof; And it can be achieved as a spindle device coupled to the spindle plate using the sub-plate characterized in that it comprises a fastening means for fastening the sub-plate and the spindle plate.

The fastening means is composed of pin bolts, and further includes a plurality of pin holes formed in each of the outer side of the central hole of the sub-plate and the outer side of the mounting hole of the spindle plate. It can be characterized.

The outer surface of the subplate may be surface-moved and tapped.

A third object of the present invention is a suspension device, comprising: a torsion beam provided between two wheels of a vehicle; A trailing arm coupled to each of both ends of the torsion beam; A sub-plate having an inner surface welded to one end of an outer surface of the trailing arm, an outer surface processed in a state where the inner surface is coupled, and a central hole in the center; A spindle plate coupled to the outer surface of the sub plate and having a mounting hole formed in the center thereof; And it can be achieved as a suspension equipped with a spindle plate using a sub-plate characterized in that it comprises a fastening means for coupling the sub-plate and the spindle plate.

The processed subplate may have a camber angle and a toe angle, and the spindle plate coupled to the subplate may be shaped to have a camber angle and a toe angle.

The suspension may be characterized as being of CTBA type.

The fastening means is composed of pin bolts, and further includes a plurality of pin holes formed at the outer side of the central hole of the sub plate and the outer side of the mounting hole of the spindle plate, thereby inserting the pin bolts into each of the pin holes to couple the spindle plate to the sub plate. It may be characterized by.

Therefore, according to the embodiment of the present invention as described above, by coupling the sub-plate first, by fastening the spindle plate to the sub-plate by the fastening means, there is no need for a separate machining process on the spindle plate after fastening The advantage of this method is that the coupling method is efficient.

In addition, by fastening the spindle plate by means of fastening means, not by welding, there is no need for a separate machining procedure after fastening, so that the spindle plate can be economically and quickly combined. In addition, the cumulative error does not occur according to the multi-process, there is an advantage that it provides a more sophisticated machining efficiency.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be readily apparent to those skilled in the art that various other modifications and variations are possible without departing from the spirit and scope of the present invention. Are all within the scope of the appended claims.

1 is a perspective view of a vehicle having a suspension coupled to a spindle plate in a conventional manner;
Figure 2a is a perspective view of a trailing arm coupled to the spindle plate in a conventional manner,
Figure 2b is a perspective view from the rear of the trailing arm coupled to the spindle plate in a conventional method,
3 is a perspective view of a trailing arm coupled to a spindle plate using a subplate according to an embodiment of the present invention;
4 is an exploded perspective view of a trailing arm coupled to a spindle plate using a subplate according to an embodiment of the present invention;
5 is a flow chart of the spindle plate coupling method using a subplate according to an embodiment of the present invention,
Figure 6a is a perspective view of the trailing arm coupled to the sub plate according to an embodiment of the present invention,
Figure 6b is a perspective view of the trailing arm coupled to the sub plate according to an embodiment of the present invention from the rear,
7A is a front view of a state in which a subplate is machined by a camber processing unit for adjusting a camber angle according to an embodiment of the present invention;
Figure 7b is a plan view of a state of processing the sub-plate with the toe-in processing means to match the toe angle according to an embodiment of the present invention,
8 is a perspective view of a trailing arm coupled to a spindle plate using a subplate according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

In addition, the same reference numerals are used for parts having similar functions and functions throughout the drawings. Throughout the specification, when a part is 'connected' to another part, this includes not only 'directly connected' but also 'indirectly connected' with another element in between. do. In addition, "including" a certain component does not exclude other components unless specifically stated otherwise, it means that may further include other components.

Hereinafter, the configuration of the suspension device 1 to which the spindle plate 30 is coupled using the subplate 20 will be described. First, FIG. 3 shows a partial perspective view of a suspension device 1 in which a spindle plate 30 is coupled using a subplate 20 according to an embodiment of the present invention. And, Figure 4 shows a partially exploded perspective view of the suspension device 1 coupled to the spindle plate 30 using the subplate 20 according to an embodiment of the present invention.

3 and 4, the suspension device 1 coupled to the spindle plate 30 by using the subplate 20 according to an embodiment of the present invention is a torsion beam provided between both wheels ( 2), a torsion bar 3 mounted inside the torsion beam 2 to support roll rigidity of the vehicle 100, a pair of trailing arms 10 coupled to both sides of the torsion beam 2, and a trailing arm 10 It is composed of a bush 13, a bracket 14, a subplate 20 and a spindle plate 30 coupled to the subplate 20 by the fastening means 40 coupled to the).

The torsion beam 2 is provided with a U- or V-shaped torsion beam (Press-Type V Beam), as used in a conventional CTBA torsion beam type, and a torsion bar 3 is provided inside the torsion beam. It has a structure that is combined. The torsion bar 3 is additionally installed because the torsion beam 2 may not support the roll rigidity of the vehicle 100 only when the vehicle 100 is driven.

The trailing arms 10 are coupled to both ends of the torsion beam 2, respectively. Both end surfaces of the torsion beam 2 and the inner surface of the trailing arm 10 are welded to each other. The trailing arm 10 includes a hole penetrating from the inside to the outside. Accordingly, the torsion bar 3 is inserted into the hole, and the trailing arm 10 and the torsion bar 3 are joined by welding the outer surface of the trailing arm 10 in contact with the outer periphery of the end of the torsion bar 3. do.

In addition, the trailing arm 10 includes a front trailing arm 10 having a bush 13 having one end coupled to a vehicle body and a trailing trailing arm 10 for controlling vertical movement. The trailing arm 10 is coupled to the bracket 14 on which the coil spring and the damper spring are mounted and the spindle plate 30 to which the tire is coupled by the bearing.

As shown in FIGS. 3 and 4, the suspension device 1 to which the spindle plate 30 is coupled using the subplate 20 according to an embodiment of the present invention has one end of an outer surface of the trailing arm 10. The spindle plate 30 is not directly coupled to the part by welding. That is, in one embodiment of the present invention, before joining the spindle plate 30, the subplate 20 is joined to one end of the outer surface of the trailing arm 10 by welding, the spindle plate 30 is welded Instead of being fastened to the subplate 20 by the fastening means 40. Therefore, as will be described in detail later, the spindle plate 30 does not include a separate machining process after the welding process and joining has a feature that the accumulated tolerance does not occur due to welding and processing.

As shown in FIG. 4, the sub-plate has a circumference of an inner surface of the subplate 20 and a surface in contact with one end of the outer surface of the trailing arm 10 according to an embodiment of the present invention. The 20 is coupled to the trailing arm 10. The center is provided with a central hole 22 in which the tire is later mounted. In addition, it can be seen that a plurality of pinholes 41 are formed in the outer circumferential portion of the central hole 22. The outer surface of the subplate 20 is faced to match the toe angle and camber angle.

Then, the manufactured spindle plate 30 is fastened to the subplate 20 by the fastening means 40. The center of the spindle plate 30 is provided with a mounting hole 31 on which the tire is mounted, and a plurality of pin holes 41 are formed at the outer circumference of the mounting hole 31. Therefore, the fastening means 40 such as a pin bolt is inserted into the pinhole 41 of the spindle plate 30 and the pinhole 41 of the subplate 20 to fasten the spindle plate 30 to the subplate 20. do.

The technical feature of the present invention is that after the spindle plate 30 is coupled, the structure itself does not perform a separate machining process, the structure of coupling the spindle plate 30 to the subplate 20 in a non-welding method If, the specific configuration name, form, number and the like of the fastening means 40 will not affect the scope of the present invention.

Hereinafter, a method of coupling the spindle plate 30 using the subplate 20 according to an embodiment of the present invention will be described. Figure 5 shows a flow chart of the spindle plate 30 coupling method using the subplate 20 according to an embodiment of the present invention.

First, the subplate 20 is coupled to one end of the outer surface of the trailing arm 10 coupled to both ends of the torsion beam 2 of the suspension device 1 (S20). That is, the subplate 20 having the center hole 22 in the center is brought into contact with one end of the outer surface of the trailing arm 10, and the subplate 20 is trailed with the welded portion 21 as the circumference of the contacted inner surface. It is coupled to the ring arm (10).

6A illustrates a perspective view of a trailing arm 10 to which a subplate 20 is coupled according to an embodiment of the present invention, and FIG. 6B illustrates a combination of the subplate 20 according to an embodiment of the present invention. It shows a perspective view of the trailing arm 10 from the rear. As shown in FIGS. 6A and 6B, the subplate 20 has the entire circumference of a surface where the inner surface of the manufactured subplate 20 and the outer surface of the treling work arm 10 are in contact with each other as the weld portion 21. It can be seen that is coupled to the trailing arm (10).

As described above, the subplate 20 according to the embodiment of the present invention includes a central hole 22 in which the tire is later mounted. In addition, it can be seen that a plurality of pinholes 41 are formed in the outer circumferential portion of the central hole 22.

After the subplate 20 is coupled to the trailing arm 10 by welding, a process of machining the subplate 20 is performed (S30). The processing of the subplate 20 is not composed of the multi-steps (4 to 13 steps) described in the prior art, and is intended to match the tow angle and camber angle for inducing the toe-in characteristic during the turning of the vehicle 100. In addition, the present invention has a technical feature in that the subplate 20 is machined before the spindle plate 30 is joined, rather than being machined after the spindle plate 30 is joined.

Machining of the subplate 20 consists of two processes, including a face machining for matching the toe angle and a camber angle, and a tap machining for machining an edge surface perpendicular to the outer surface. Therefore, the process time is reduced compared to conventional machining, and cumulative tolerances due to separate processes are not generated. Since the spindle plate 30 is not directly processed, there is no deformation error of the spindle plate 30 due to welding.

FIG. 7A schematically illustrates a front view of a subplate 20 coupled to a trailing arm 10 that is processed by a camber processing means 50 to adjust a camber angle according to an embodiment of the present invention. As shown in FIG. 7B, the camber processing means 50 is constituted by a conventional planar device for forming a toe angle on the subplate 20. The tow-in processing means 60 forms a camber angle of about 1 to 2 degrees on the outer surface of the subplate 20.

In addition, Figure 7b shows a plan view schematically showing the subplate 20 coupled to the trailing arm 10 is processed by the toe processing means 60 to fit the toe angle according to an embodiment of the present invention. . As shown in FIG. 7B, the toe-in processing means 60 is constituted by a conventional planar device for forming the toe angle on the subplate 20. The toe-in processing means 60 forms a toe angle of about 0.1 ° on the outer surface of the subplate 20.

After the machining process of the subplate 20, the spindle plate 30 is produced (S30). Of course, the spindle plate 30 may be manufactured before the above-described process. The manufactured spindle plate 30 is not coupled to the processed subplate 20 by welding, but is coupled to the outer surface of the subplate 20 by the fastening means 40 to be fastened. 8 illustrates a perspective view of a trailing arm 10 to which a spindle plate 30 is coupled using a subplate 20 according to an embodiment of the present invention.

As shown in FIG. 8, the inner surface of the spindle plate 30 is brought into contact with the outer surface of the machined subplate 20. Therefore, the tow angle and the tow angle of the processed subplate 20 are provided in the spindle plate 30 as it is. In addition, since welding is not performed in the coupling process of the spindle plate 30 and the subplate 20, deformation tolerances due to welding do not occur, and thus no separate machining process is required after the coupling.

Fastening means 40 according to an embodiment of the present invention is composed of a pin bolt. Therefore, the center of the spindle plate 30 is provided with a mounting hole 31 on which the tire is mounted, and a plurality of pin holes 41 are formed in the outer circumference of the mounting hole 31. Accordingly, the pin bolt is inserted into the pinhole 41 of the spindle plate 30 and the pinhole 41 of the subplate 20 to fasten the spindle plate 30 to the subplate 20.

The technical feature of the present invention is that after the spindle plate 30 is coupled, the structure itself does not perform a separate machining process, the structure of coupling the spindle plate 30 to the subplate 20 in a non-welding method If, the specific configuration name, form, number and the like of the fastening means 40 will not affect the scope of the present invention.

1: suspension
2: torsion beam
3: torsion bar
4: Conventional Spindle Plate Weldment
10: trailing arm
13: Bush
14: Bracket
20: Subplate
21: welding part
22: Central Hall
30: spindle plate
31: mounting hole
40: Fastening means
41: Pinhole
50: camber processing means
60: toe-in processing means
100: vehicle

Claims (10)

In the method of joining the spindle plate using the sub-plate,
Contacting the subplate having a central hole at one end of the trailing arm outer surface of the suspension device, and joining the subplate to the trailing arm by welding a contact around the inner surface of the suspension;
Machining to form a toe angle and a camber angle on the subplate;
Conforming the inner surface of the manufactured spindle plate to the outer surface of the processed subplate; And
And fastening the subplate and the spindle plate by fastening means.
The method of claim 1,
The processing step,
The method of joining the spindle plate using a sub-plate comprising the step of machining the outer surface of the sub-plate and tab processing.
The method of claim 2,
The face grinding operation is,
A camber processing step for forming a camber angle on the subplate by camber processing means; And
And a toe-in processing step for forming a toe-angle on the subplate by a toe-in processing means.
In the spindle device provided in the suspension device,
A trailing arm coupled to both ends of the torsion beam;
A sub plate having an inner surface welded to one end of an outer surface of the trailing arm, the outer plate being processed in the coupled state of the inner surface, and a central hole in the center;
A spindle plate having a shape-aligned outer surface and an inner surface of the sub plate and having a mounting hole formed in a center thereof; And
Spindle device is coupled to the spindle plate using a sub-plate, characterized in that it comprises a fastening means for fastening the sub-plate and the spindle plate.
The method of claim 1,
The fastening means is composed of a pin bolt,
Further comprising a plurality of pin holes formed in each of the outer side of the center hole of the sub plate and the outer side of the mounting hole of the spindle plate,
And a spindle plate coupled to the subplate by inserting the pin bolt into each of the pin holes to couple the spindle plate to the subplate.
According to claim 1,
The outer side surface of the subplate is a spindle device coupled to the spindle plate using a sub-plate characterized in that the surface is moved, tabbed.
In suspension,
A torsion beam provided between both wheels of the vehicle;
A trailing arm coupled to each of both ends of the torsion beam;
A sub plate having an inner surface welded to one end of an outer surface of the trailing arm, an outer surface processed in a state where the inner surface is coupled, and a central hole in a center thereof;
A spindle plate coupled to an outer surface of the sub plate and having a mounting hole formed in a center thereof; And
Suspension device mounting the spindle plate using a sub-plate, characterized in that it comprises a fastening means for coupling the sub-plate and the spindle plate.
The method of claim 7, wherein
The subplate processed has a camber angle and a toe angle,
And the spindle plate coupled to the subplate is configured to have a camber angle and a toe angle in conformity with the subplate to suspend the spindle plate using the subplate.
The method of claim 7, wherein
The suspension device is a suspension device equipped with a spindle plate using a sub-plate, characterized in that the CTBA type.
The method of claim 7, wherein
The fastening means is composed of a pin bolt,
Further comprising a plurality of pin holes formed in each of the outer side of the center hole of the sub-plate and the outer side of the mounting hole of the spindle plate,
And a spindle plate mounted to each of the pin holes to couple the spindle plate to the subplate.

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