KR100887252B1 - Pulse ring for Anti-lock Brake System and manufacturing method thereof - Google Patents

Abstract

Disclosed is a pulse ring for an ABS brake system, which is assembled to a wheel hub in a state in which a detection piece is formed in an axial direction on an outer surface of a cylindrical plate, and is made of a simple configuration by forming a sheet, thereby reducing weight and reducing manufacturing costs. The present invention relates to a pulse ring for an ABS brake system having a simple manufacturing process.

In the ABS brake system pulse ring, in the ABS brake system pulse ring, a signal detection detection piece is formed on the outer side by a predetermined number at equal intervals along the rotation axis of the detection piece in the axial direction, and the inner side is the hub of the wheel. Ring body is supported on; is achieved.

Pulse ring, reinforcing member

Description

Pulse ring for ABS brake system and manufacturing method thereof {Pulse ring for Anti-lock Brake System and manufacturing method}

The present invention is assembled to the wheel hub in the state in which the detection piece is formed in the axial direction on the outer surface of the cylindrical plate body, consisting of a simple configuration by forming the sheet material reduced weight, manufacturing cost is reduced, manufacturing process is simple ABS brake system It relates to pulse ring for.

In general, about 40 to 100 grooves are formed on the cylindrical surface or the circumference of the rotary ring in the radial direction or parallel to the axis, and the pulse ring is installed on the same axis as the wheel of the car and rotates along with the rotation of the wheel. do. When the pulse ring rotates, the wheel speed sensor detects the height difference of the groove on the pulse ring and transmits a signal to the ABS control unit. Since the pulse ring also rotates according to the rotation speed of the wheel, the wheel speed sensor detects the number of times the height difference of the groove of the pulse ring changes, and the ABS control unit receiving the signal detects the wheel speed to operate the ABS device.

Conventionally, the pulse ring was manufactured by the following manufacturing method. First, as shown in FIG. 1A, a ring having a predetermined outer diameter and inner diameter is processed by cutting an oxygen cut or a round bar with an iron plate having a predetermined thickness. Next, as shown in Figure 1b, by using a side cutter, one side of the flat surface of the ring is divided into about 40-100 equal parts as needed to form a groove by forming a groove to process the pulse ring.

However, the conventional method of manufacturing the pulse ring has a problem in several aspects.

First, the steel plate, which is a material of the pulse ring, is wasteful of materials because it cannot be used as a material for manufacturing the impulse ring any more except for the part processed by the impulse ring.

In addition, the processing time of the iron plate material is excessive, and the processing time during turning is increased, and the working efficiency by the oxygen cutting or other processing methods for processing the shape of the impulse ring takes a lot, so the processing efficiency of the impulse ring is low.

In addition, since the grooves are divided by manual processing and the grooves are processed by side cutters one by one, not only the processing time is long, but also the cumulative pitch error due to the 100-division division processing by manual division processing. Since the manufacturing process is complicated, there is a problem that the unit price increases.

The present invention has been made to solve the above problems is to provide a lightweight pulse ring through a simplified configuration.

Pulse ring for ABS brake system of the present invention forms a detection piece on the outer surface of the ring body in parallel with the axial direction to enable signal detection on the detection piece on the outer circumferential surface of the rotating shaft, bending the support piece on the upper and lower ends, respectively Another object is to provide a pulse ring for an ABS brake system that is formed to be firmly supported by a wheel hub.

In addition, an object of the present invention is to provide an ABS brake system pulse ring having a reinforcing member on the inner surface of the plate formed with the detection piece to increase the durability.

In addition, by using the engaging projection protruding inward of the reinforcing member is caught on the front end or step of the wheel hub to improve the rigidity of the reinforcing member and at the same time for the ABS brake system for the pulse ring is installed in the correct position of the wheel hub The purpose is to provide a pulse ring.

According to the present invention, a method of manufacturing a pulse ring for an ABS brake system enables to obtain a uniform pulse signal by forming detection pieces at equal intervals on a plate by press working and to reduce manufacturing costs as the manufacturing process is simplified. It is an object of the present invention to provide a pulse ring manufacturing method.

In addition, the present invention pulse ring manufacturing method for the ABS brake system is formed by a single press of the plate material is bent in the cross-section of the "c" shape with one side open while forming a support piece in close contact with the wheel hub inward, the outer surface It is an object of the present invention to provide a method of manufacturing a pulse ring for an ABS brake system that can produce a pulse ring with a single press, such as forming an uneven detection piece on the support piece and a reinforcing rib on the support piece.

The ABS brake system pulse ring of the present invention for achieving the above object is a pulse ring for the ABS brake system, the signal detection detection piece on the outer surface is formed by a predetermined number at the same interval parallel to the rotation axis of the detection piece in the axial direction And, the inner surface is achieved by providing a pulse ring for the ABS brake system comprising a; ring body supported on the hub of the wheel.

Here, it is preferable that the ring body is bent so that the front end is bent and the support piece supported on the wheel hub extends from at least one of the upper end and the lower end.

On the other hand, the ring body is preferably bent to form a cross-section of the cross-section "C" shaped open one side is formed inside the support piece that is supported by the hub of the wheel.

Preferably, the support piece is provided with a reinforcing rib on the plate surface.

It is preferable to have a reinforcing member fixed to the inner surface of the ring body.

The reinforcing member is preferably a locking projection protrudes on the inner side.

It is preferable that the ring body is formed by protruding both sides of the detection piece from the plate surface.

The portion between the detection pieces of the ring body is preferably drilled to form a through hole.

Preferably, the ring body is formed by protruding the detection piece from the plate surface.

On the other hand, another object of the present invention is a pulse ring manufacturing method for the ABS brake system, between the first roller having a protrusion on the outer surface and the second roller to form a groove on the outer surface to engage the first roller. A support piece forming step of allowing the support body to be formed by passing a ring body therethrough; And a pressing frame in which a plurality of protrusions are formed at equal intervals on the outer surface from the inside of the ring body toward the support frame while the ring body is disposed inside the support frame in which a plurality of grooves are formed at equal intervals on the inner surface. It is achieved by providing a pulse ring manufacturing method for the ABS brake system, including; forming the detection unit for pressing to form a detection piece to the outside of the plate surface of the ring body.

The pressing frame is preferably formed in the inclined surface on the inner surface as the pressing punch formed in the inclined surface at the tip is lowered from the upper side is pressed to the support frame from the inner surface of the ring body.

In addition, the reinforcing member fixing step for fixing after inserting the reinforcing member on the inner surface of the ring body; it is preferably further provided.

On the other hand, another object of the present invention in the pulse ring manufacturing method for the ABS brake system, a cylindrical support frame formed with a plurality of grooves at equal intervals on the outer side of the upper end of the ring-shaped plate material, the outer groove formed on the bottom Pressing a cylindrical molding frame formed with a plurality of grooves at equal intervals from the upper side from the upper side of the ring-shaped plate material, a plurality of detection pieces are formed on the outer surface and a support piece that is in close contact with the wheel hub is formed on the inner surface to open one side. It is achieved by providing a method for producing a pulse ring for an ABS brake system, characterized in that for forming a ring body having a cross-section of the shape.

Here, it is preferable that a groove part is formed on the inner side of the support frame, and a protrusion is formed on the inner side of the groove part of the molding frame to form a reinforcing rib on the support piece of the ring body.

Pulse ring for the present invention ABS brake system as described above has the effect of providing a lightweight pulse ring through a simplified configuration.

In addition, the support piece is bent at the upper and lower ends in the state where the detection piece is formed on the outer surface of the ring body, thereby securing the rigidity of the pulse ring itself and being firmly supported by the wheel hub.

In addition, the pulse ring for the ABS brake system of the present invention has an effect of increasing durability by providing a reinforcing member on the inner surface of the plate member on which the detection piece is formed.

In addition, the locking projection protruding inwardly of the reinforcing member is caught by the front end or the step of the wheel hub, thereby improving the rigidity of the reinforcing member and at the same time providing the effect of allowing the pulse ring to be installed at the correct position of the wheel hub. .

According to the present invention, the pulse ring manufacturing method for the ABS brake system obtains a uniform pulse signal by forming the detection pieces at equal intervals on the cylindrical plate surface in the axial direction by press working, and reduces the manufacturing cost as the manufacturing process is simplified. It is effective.

According to the present invention, a method of manufacturing a pulse ring for an ABS brake system forms a support piece that is in close contact with a wheel hub inward while being bent into a cross-section of a "c" shape in which one side is opened by pressing and pressing once. There is also a synergistic effect of productivity efficiency in the manufacturing process in which the fabrication is completed by one press, such as forming an uneven detection piece on the support piece and a reinforcing rib on the support piece.

Hereinafter, a preferred embodiment of the pulse ring for the ABS brake system of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view of the wheel hub to which the pulse ring for the ABS brake system of the present invention is applied, Figure 3 is a perspective view of a first embodiment of the pulse ring for the ABS brake system of the present invention, Figure 4a is "a" of FIG. 4 is a cross-sectional view taken along the line AA of FIG. 4A.

ABS brake system pulse ring 100 of the present invention as shown in the drawings is a wheel so that the sensor (not shown) to detect a plurality of detection pieces formed at equal intervals on the outside to detect the rotational speed of the wheel Inserted into the hub H is fixed.

In the pulse ring for the ABS brake system of the present invention, the support piece 114 which is in close contact with the hub at the top and bottom of the ring body 110 is bent, respectively, and the signal detection detection piece 112 is formed on the outer surface. A large number is formed at intervals.

The detection piece 112 is formed on the outer surface of the ring body 110 by a predetermined number at equal intervals in parallel with the axis of rotation. The space between the detection pieces 112 is perforated to form a through hole, thereby reducing its own weight. In addition, the sensor can receive signals smoothly.

In the present embodiment, the space between the detection pieces 112 is exemplified, but it may be processed in a concave shape, or the detection pieces 112 may be processed in a convex shape.

The support piece 114 is bent inward from the top and bottom of the ring body 110, respectively, and the front end thereof is bent in parallel with the axial direction so as to be closely adhered to the vehicle hub H, thereby increasing rigidity against torsion and the like. At the same time, it provides an advantage to control position during assembly.

Therefore, the support body 114 is bent inward from the top and bottom of the ring body 110 as shown in Figure 4b and the front end is bent side by side in the axial direction is in close contact with the wheel hub (H) ring body 110 Is spaced apart from the wheel hub (H) by a predetermined distance.

Figure 5 is a perspective view of a second embodiment of the pulse ring for the ABS brake system of the present invention, Figure 6a is a cross-sectional view of the portion "b" of Figure 5, Figure 6b is a cross-sectional view taken along the line B-B of Figure 6a.

This embodiment is provided with the reinforcing member 120 in the above-described first embodiment to increase the rigidity, the ring body 110 has the same configuration as the above-described embodiment, detailed description thereof will be omitted.

The reinforcing member 120 is inserted into and fixed to the inner surface of the ring body 110 and provides a locking jaw 122 that is bent and protruded from the plate surface to increase rigidity and at the same time the wheel hub (H). It acts as a stopping stopper.

That is, the locking jaw 122 of the reinforcing member 120 is caught in the tip or stepped portion of the wheel hub (H) to make the insertion position constant to prevent the occurrence of signal detection error according to the insertion position. The locking jaw 122 protruding from the plate surface increases the self-stiffness of the reinforcing member 120, thereby providing an advantage of improving durability.

The reinforcing member 120 is press-fitted into the inner surface of the ring body 110, or is fixed by spot welding, other melt welding in the inserted state.

7 is a perspective view of a third embodiment of a pulse ring for an ABS brake system according to the present invention. FIG. 8A is a cross sectional view of a portion “c” of FIG. 7, and FIG. 8B is a cross-sectional view taken along the line C-C of FIG. 8A.

The third embodiment is a modification of the above-described second embodiment, and the reinforcing member 120 is coupled to the inner side of the ring body 110 as in the second embodiment.

Here, the ring body 110 is formed with a plurality of detection pieces 112 on the outer surface at equal intervals, the space between the detection pieces 112 is drilled to form a through hole, the support piece is bent in the axial direction 114 is bent from the top to the inside, the extension portion 116 is extended in the axial direction at the lower end of the ring body 110, the support piece 114 is not formed.

The reinforcing member 120 is the upper end is in close contact with the inner side of the upper support piece 114 of the ring body 110, the lower portion is bent to form a locking jaw 122, the lower end of the lower extension portion of the ring body 110 116 is in close contact with the inside.

As described above, the central portion of the plate surface of the reinforcing member 120 is bent to form the locking jaw 122, thereby engaging the front end or the stepped portion of the wheel hub H, and the locking jaw 122 is reinforcing member ( By increasing the rigidity of the 120, the durability is improved.

9A and 9B are perspective views of a fourth embodiment of the pulse ring for the ABS brake system of the present invention, FIG. 10A is a cross-sectional plan view of part "d" of FIG. 9, and FIG. 10B is a cross-sectional view taken along the line D-D of FIG.

As shown in the drawings, the fourth embodiment of the pulse ring for the ABS brake system of the present invention may be bent at both ends of the plate so as to form an open cross-section of the "c" shape, and the detection pieces 112 may be formed on the outer surface thereof. It is formed at equal intervals and the support piece 114 is bent inward.

Here, the detection piece 112 is formed to be bent to protrude from the outer surface so that the outer surface of the ring body 110 to form a concave-convex shape, arranged side by side with the outer surface on which the detection piece 112 is formed and the upper end is Reinforcing ribs 114a are formed in the support piece 114 bent to be connected to each other in the axial direction.

The pulse ring of this embodiment configured as described above is inserted such that the support piece 114 is in close contact with the outer surface of the wheel hub (H), the rigidity is reinforced by the reinforcing rib (114a) formed on the support piece (114) In addition, rotational slip from the wheel hub (H) is prevented.

11A to 11D of the accompanying drawings are process drawings showing the manufacturing process of the manufacturing method of the pulse ring for the ABS brake system of the present invention.

First, as shown in FIG. 11A, the first roller P11 having the protrusion P11a formed on the outside from the cylindrical plate 10 as shown in FIG. 11B is disposed inside the plate 10, and the groove P12a is disposed on the outside. The formed first roller P12 is disposed on the outer surface of the plate 10, and the first roller P11 and the second roller P12 are pressed against the plate 10 in the above state. Through the support piece forming step of rotating the P11 and the second roller P12, respectively, the support pieces 114 are formed on the upper and lower ends of the plate 10, respectively.

Then, as shown in Fig. 11C, the molding die P13 having the punching grooves P13a formed on the inner side thereof is disposed outside the plate 10, and the punching protrusions P14a are formed on the front end, and the inclined surface P14b is formed on the rear surface thereof. The press punch P15 which formed the inclined surface P15a at the front-end | tip from the upper side of the punch mold P14 in the state which arrange | positioned the punch mold P14 which formed this in the inside of the board | plate material 10 is lowered.

Then, while the inclined surface of the pressure punch is in contact with the inclined surface of the punch mold through the forming step of the detection unit as described above, the punch mold P14 is moved from the inner side of the plate member 10 toward the forming mold P13, thereby (P14) As the punching protrusion P14a at the tip is inserted into the punching groove P13a of the forming mold P13 through the plate 10, the plate 10 is drilled to form a through hole.

Further, a plurality of punching grooves 13a of the molding die P13 are formed on the inner surface of the molding die P13 at equal intervals, and the punching protrusions P14a of the punch mold P14 are punched grooves P13a. By placing a plurality of at equal intervals so as to be inserted into each other to perforate the plate 10 at equal intervals by pressing the pressure punch (P15) to form the detection piece 122 on the plate surface of the plate 10.

Meanwhile, after the reinforcing member 120 is inserted into the inner surface of the ring body 110 as shown in FIG. 11D in the state in which the ring body 110 is molded as described above, spot welding and other melt welding (S) are assembled. Secure with a back.

12A to 12D of the accompanying drawings are process drawings showing a manufacturing process of another embodiment of the method of manufacturing the pulse ring for the ABS brake system of the present invention.

First, as shown in FIG. 12A, a first molding die P21 having an insertion groove portion P21a formed on a bottom surface of the ring-shaped plate 20 as shown in FIG. 12B is disposed on an upper portion of the plate, and the first molding die P21. When the second molding die P22 is pressed in the direction of the first molding die P21 in a state in which the second molding die P22 inserted into the insertion groove portion P21a of the bottom plate 20 is disposed, the plate member ( 20 is bent into a "c" shaped cross section, one side of which is opened in the insertion groove portion P21a of the first molding die P21.

Here, as shown in FIG. 12c, a plurality of uneven parts P21b are formed in the vertical direction at equal intervals in the outer side in the insertion groove part P21a of the first molding die P21, and the inner side of the insertion groove part P21a A protrusion P21c is formed in a vertical direction, and an uneven portion P22a that is engaged with the uneven portion P21b is formed on an outer side of the second molding die P22, and an inner surface of the first molding die P21 is formed. A plurality of detection pieces 112 are formed on the outer surface of the plate 20 which is bent between the first mold P21 and the second mold P22 by forming the recess P22b that engages the protrusion P21c. ) Is formed at equal intervals, and the reinforcing rib 114a of the support piece 114 is formed on the inner surface of the plate 20.

12D shows a cross sectional view of the first mold P21 and the second mold P22 in engagement with each other.

As shown in the drawing, the plate 20 is bent while the second molding frame P22 is inserted into the insertion groove portion P21a of the first molding frame P21, and the insertion groove portion P21 of the first molding frame P21 is formed. A plurality of uneven parts P21b formed on the outer surface of the inner surface and the uneven parts P22a formed on the outside of the second molding frame P22 are engaged with each other, and the detection piece protrudes from the plate surface while the plate body 20 interposed therebetween is bent. 112 are formed and the support piece of the plate body interposed between the protrusion part P21c formed in the inner surface of the insertion groove part P21a of the 1st molding die P21, and the recessed part P22b of the 2nd molding die P22. Reinforcing ribs 114a are formed in 114.

The manufacturing method of another embodiment as described above is bending the plate 20 into a cross-section of the "c" shape with one press open at the same time and at the same time the detection piece 112 is formed on the outer surface, the detection piece is formed It is arranged side by side spaced apart from the outer surface and the upper end is connected to be formed integrally formed support piece 114, and also has a feature to form a reinforcing rib (114a) on the support piece (114).

Figure 1a is a perspective view showing that the iron plate is oxygen cut to form a circular ring in order to process a conventional impulse ring,

Figure 1b is a perspective view showing that the groove is formed by the side cutter of the conventional circular ring,

2 is a perspective view of a wheel hub to which the pulse ring for the present invention ABS brake system is applied;

Figure 3 is a perspective view of a first embodiment of the pulse ring for the present invention ABS brake system,

4A is a plan sectional view of portion “a” of FIG. 3, and FIG. 4B is a cross-sectional view taken along the line A-A of FIG. 4A;

Figure 5 is a perspective view of a second embodiment of the pulse ring for the present invention ABS brake system,

FIG. 6A is a cross-sectional plan view of a portion “b” of FIG. 5, and FIG. 6B is a cross-sectional view taken along line B-B of FIG. 6A;

7 is a perspective view of a third embodiment of the pulse ring for the ABS brake system of the present invention;

FIG. 8A is a cross-sectional plan view of a portion “c” of FIG. 7, and FIG. 8B is a cross-sectional view taken along line C-C in FIG. 8A;

9 is a perspective view of a fourth embodiment of a pulse ring for an ABS brake system of the present invention;

FIG. 10A is a sectional plan view of a portion “d” of FIG. 9, and FIG. 10B is a sectional view taken along the line D-D of FIG. 10A;

11a to 11d is a process chart showing the manufacturing process of the manufacturing method of the pulse ring for the ABS brake system of the present invention,

12A to 12D are process diagrams illustrating a manufacturing process of another embodiment of a method of manufacturing a pulse ring for an ABS brake system according to the present invention.

※ Explanation of code for main part of drawing

110: ring body, 112: detection piece, 114: support piece,

114a: reinforcing rib, 120: reinforcing member, 122: locking jaw

Claims (4)

delete In a pulse ring for an ABS brake system, a signal detecting detection piece is formed on the outer side in a predetermined number at equal intervals in parallel with the rotating shaft, and the inner side includes a ring body supported by the hub of the wheel. A reinforcing member inserted into and fixed to the inner side of the ring body, and an inner side of the reinforcing member is formed to have a locking step protruding from the plate surface to increase the rigidity and to serve as a stopper for the wheel hub. Pulse ring for the ABS brake system, characterized in that. On the support piece forming step and the inner surface such that the support body is formed by passing the ring body between the first roller having the protrusion formed on the outer side and the second roller engaging the first roller by forming the groove on the outer side. The plate surface of the ring body is pressed against the support frame from the inside of the ring body by pressing the pressure frame formed with a plurality of protrusions at equal intervals on the outer surface in a state where the ring body is disposed inside the support frame having a plurality of grooves at intervals. In the pulse ring manufacturing method for an ABS brake system comprising the step of forming the detection unit for forming the detection piece to the outside, A reinforcing member fixing step of inserting a reinforcing member having a rigidity increasing role and a stopping jaw serving as a stopper to be fastened to the wheel hub by inserting the reinforcing member into the inner surface of the ring body; ABS ring system pulse ring manufacturing method characterized in that it further comprises. delete

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