KR101155616B1 - The manufacturing method and manufacturing apparatus of tone wheel for vehicle and the tone wheel for vehicle manufactured by method thereof - Google Patents

Abstract

The present invention relates to a manufacturing method and apparatus for manufacturing a vehicle tone wheel, and a vehicle tone wheel manufactured by the manufacturing method thereof, when the tone wheel 40 of the present invention is installed and used on the rotating body (1) to rust on the rotating body (1) Although generated, the rust generated in the rotating body (1) is blocked by the indentation portion 41 is impossible to move to the sensing unit 45, thereby rust generated in the rotating body (1) sensing hole 43 Since the phenomenon of filling is prevented, the tone wheel 40 of the present invention has the advantage that can always exert its function even if used for a long time irrespective of the rust generated in the rotating body (1), through which the tone wheel 40 of the present invention ) Increases the service life and durability.
In addition, the tone wheel 40 of the present invention is not a configuration formed by assembling each other after the press-in portion 41 and the sensing unit 45 are manufactured as separate products, respectively, the press-in portion 41 and the sensing unit 45 ) Is a one-piece configuration, it is possible to achieve a reduction in mold cost and manufacturing cost, to improve the productivity by reducing the production time, and to further reduce unnecessary waste of material.

Description

Manufacturing method and manufacturing apparatus for a vehicle tone wheel, and a vehicle tone wheel manufactured by the method of manufacturing the vehicle {1 manufacturing method and manufacturing apparatus of tone wheel for vehicle and the tone wheel for vehicle manufactured by method

The present invention relates to a method for manufacturing a vehicle tone wheel to be used as a vehicle component, a manufacturing apparatus, and a vehicle tone wheel manufactured by the method.

In general, the tone wheel is a component installed in the rotating body to detect the rotational speed of a rotating object such as a drive shaft (wheel) or a wheel (wheel), etc. are manufactured in various shapes depending on the type.

1 and 2 show a conventional tone wheel, in which the tone wheel 10 shown in FIG. 1 has a sensing unit 11 formed in a single cylindrical shape and is directly pressed into the rotating body 1 so that the rotating body ( As a structure combined integrally with 1), there is an advantage when used in a relatively narrow installation space.

In the sensing unit 11, a plurality of sensing holes 13 are formed at equal intervals along the circumferential direction.

The sensing unit 11 forms irregularities by ribs existing between the sensing hole 13 and the sensing hole 13, and a tone wheel sensor (not shown) includes a tone wheel 10 together with the rotating body 1. When the rotation is detected, it detects the pulse of the sensing unit 11 forming the unevenness and transmits it to the control device (controller) mounted on the vehicle. The rotation speed of) can be grasped in real time.

The tone wheel and the tone wheel sensor as described above are used as an essential component such as an anti-lock brake system (ABS), a transaction control system (TCS) and a vehicle dynamic control system (VDC) together with a control device.

However, the conventional tone wheel 10 as described above has a problem that the function as the tone wheel 10 gradually decreases due to rust (3) generated in the rotating body (1) during long-term use.

That is, the rotary body 1 to which the tone wheel 10 is coupled does not need to paint the rotary body 1 separately due to cost reduction, etc., but combines with the tone wheel 10 and then performs the painting work together with the tone wheel 10. do.

Accordingly, the portion combined with the tone wheel 10 of the entire portion of the rotating body 1 is covered by the tone wheel 10 so that the painting is not made.

In this way, the coupling portion with the tone wheel 10, which is not painted in the rotating body 1, is gradually produced rust (3) by moisture when used for a long time, the rust (3) generated in the rotating body (1) By gradually being filled with the sensing hole 13 of the tone wheel 10, the conventional tone wheel 10 as shown in FIG. 1 has a problem that the function gradually decreases as the use time increases.

In order to solve the above problems, FIG. 2 illustrates another type of tone wheel 20.

That is, the tone wheel 20 of Figure 2 is a plurality of sensing holes (21a) and the outer cylindrical member 21 made of steel (steel) formed at equal intervals along the circumferential direction, protrudes outward in the radial direction at one end The flange 23a is formed of an inner cylindrical member 23 made of steel (steel) integrally provided.

The outer cylindrical member 21 and the inner cylindrical member 23 are integrally coupled by press-fitting the inner cylindrical member 23 into the outer cylindrical member 21, and coupled to the outer cylindrical member 21. The inner cylindrical member 23 is installed by being pressed into the outer peripheral surface of one end of the rotating body (1).

Therefore, even if rust occurs at the engagement portion with the tone wheel 20 among the entire parts of the rotating body 1, the rust generated in the rotating body 1 is blocked by the inner cylindrical member 23 and moved to the outer cylindrical member 21. This becomes impossible.

As a result, the phenomenon in which rust generated in the rotating body 1 is filled with the sensing hole 21a is prevented, so that the conventional tone wheel 20 of FIG. 2 is always used even if used for a long time regardless of the rust generated in the rotating body 1. It has the advantage of being able to function.

However, in the conventional tone wheel 20 as shown in FIG. 2, since the outer cylindrical member 21 and the inner cylindrical member 23 had to be manufactured separately and used together, the cost of the mold, the increase in manufacturing cost, the excessive production time, and the productivity were increased. Several new problems have arisen, including degradation.

Therefore, the present invention has been devised to solve the above problems, it is possible to prevent the phenomenon that the rust generated in the sensing hole is filled with the sensing hole even when rust occurs in the combined portion of the tone wheel in the rotor, and also reduce the mold cost and manufacturing cost and production time The production method and manufacturing apparatus and manufacturing method of the vehicle tone wheel which improved the precision by reducing the gap between the indentation part and the sensing part, while maintaining the constant gap of the sensing hole and improving the productivity by shortening the productivity and material waste. The purpose is to provide a vehicle tone wheel manufactured by.

Method for producing a tone wheel of the present invention for achieving the above object, the step of manufacturing a raw material connected to the raw material and the press-in portion protruded vertically from the raw material; Separating the disc from the material and then processing an outer edge of the disc to produce a plurality of sensing holes arranged radially around the indentation; Manufacturing the ton wheel of the finished product having a sensing part in close contact with the outer circumferential surface of the indentation part by processing the disc in the same direction as the protruding direction of the indentation part with respect to the boundary of the disc and the indentation part; It is done.

In addition, the manufacturing method of the tone wheel according to the present invention comprises the steps of manufacturing a raw material connected to the raw material and the press-in portion protruded vertically from the raw material; Separating the disc from the material and then processing an outer edge of the disc to produce a plurality of sensing holes arranged radially around the indentation; Manufacturing the sensing part in close contact with the outer circumferential surface of the press-fitting part by bending the disc about the boundary portion between the disc and the press-fitting part in the same direction as the projecting direction of the press-fitting part; And a post-processing step of restoring an interval (pitch) of the sensing hole deformed in the manufacturing step of the sensing unit at a predetermined interval.

In addition, the manufacturing method of the tone wheel according to the present invention comprises the steps of manufacturing a raw material connected to the raw material and the press-in portion protruded vertically from the raw material; Separating the disc from the material and then processing an outer edge of the disc to produce a plurality of sensing holes arranged radially around the indentation; Manufacturing the sensing part in close contact with the outer circumferential surface of the press-fitting part by bending the disc about the boundary portion between the disc and the press-fitting part in the same direction as the projecting direction of the press-fitting part; And a post-processing step of removing the gap between the press-fit part and the sensing part to improve the precision after manufacturing the sensing part.

In addition, the tone wheel of the present invention is manufactured by using the above-described manufacturing method, the press-fitting portion is pressed and coupled to the rotating body; And a plurality of sensing holes provided at equal intervals along the circumferential direction while being formed at one end of the indentation part to be in close contact with the outer circumferential surface of the indentation part.

In addition, the apparatus for manufacturing a tone wheel according to the present invention includes a disc and a press for vertically protruding from the disc and a mold for processing a plurality of sensing holes in the outer edge of the disc; And a bending mold for manufacturing a ton wheel of a finished product having a sensing part in close contact with an outer circumferential surface of the press-fitting part by bending the disc having the sensing hole formed therein in the protruding direction in a state where the press-fitting part is fixed. It is done.

When the tone wheel according to the present invention is installed and used in the rotating body, even if rust occurs in the rotating body, the rust generated in the rotating body is blocked by the indentation part, thereby making it impossible to move to the sensing unit, thereby causing rust generated in the rotating body. Since the phenomenon of filling the sensing hole is prevented, the tone wheel of the present invention has an advantage that it can always exhibit its function even if it is used for a long time regardless of rust generated in the rotating body, and thus the tone wheel of the present invention increases service life and improves durability. There is an effect that can be planned.

In addition, the tone wheel of the present invention is not composed of the press-fitting part and the sensing part are manufactured as a separate product, and then assembled together. In addition, it is possible to improve productivity by shortening the production time, and furthermore, there is an effect of greatly reducing unnecessary waste of materials.

1 is a view for explaining one type of conventional tone wheel,
2 is a view for explaining another type of conventional tone wheel,
3 is a perspective view and a cross-sectional view of the tone wheel according to the present invention;
4 is a view for explaining the manufacturing process of the tone wheel according to the present invention;
5 is a view for explaining the sizing process in the manufacturing process of the tone wheel according to the present invention;
6 is a view for explaining the cam sizing process in the manufacturing process of the tone wheel according to the present invention;
7 is a view for explaining the brazing welding process in the manufacturing process of the tone wheel according to the present invention;
8 is a view for explaining a bending mold of the manufacturing apparatus of the tone wheel according to the present invention;
9 is a view for explaining a stripper of the bending die;
FIG. 10 is a view illustrating a bending mold operating state of FIG. 8.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view and a cross-sectional view of the shape of the tone wheel according to the present invention.

As shown, the tone wheel 40 according to the present invention is made of steel, and is pressed into one end of the rotating body 1 (only the following reference numerals are shown as shown in FIGS. 1 and 2). A plurality of sensing parts are bent at one end of the indentation part 41 to be in close contact with the outer circumferential surface of the indentation part 41 and the single cylindrical structure integrally coupled to the rotating body (1). The hole 43 is configured to include a sensing unit 45 provided at equal intervals along the circumferential direction.

Here, the sensing hole 43 is formed to penetrate both sides of the sensing unit 45 and is opened to the outer edge of the sensing unit 45.

In addition, the length L1 of the indentation part 41 is formed longer than the length L2 of the sensing part 45, so that the sensing hole 43 has an inner side outside the indentation part 41. It has a structure blocked by the circumference.

As such, when the sensing hole 43 is blocked by the press-fitting part 41, even when rust occurs in the rotating body 1 when the tone wheel 40 is used in combination with the rotating body 1, There is an advantage that the rust is not filled with the sensing hole 43, through which the tone wheel 40 of the present invention can increase the service life and durability.

The sensing unit 45 forms irregularities by ribs between the sensing hole 43 and the sensing hole 43, and a tone wheel sensor (not shown) is configured such that the sensing unit 45 is a rotating body ( 1) detects the pulse of the sensing unit 45 forming the unevenness when the rotation with the 1) is transmitted to the control device (controller) mounted on the vehicle, the control device analyzes the pulse transmitted from the tone wheel sensor The rotational speed of the rotating body 1 is grasped in real time.

4 shows a manufacturing process of the tone wheel 40 according to the present invention as shown in FIG.

As shown in the drawing, the positioning holes 31a are processed in a steel material 31 having a strip shape and a flat plate shape.

The material 31 is supplied by flattening in the course of passing the rolled steel sheet wound in the form of a roller device.

The positioning holes 31a are processed to be disposed at equal intervals along the longitudinal direction of the material 31 as the material 31 proceeds, and are disposed so as to be positioned at each one of both sides of the material 31.

The positioning hole 31a is processed by punching a progressive die.

When the material 31 proceeds, the disc 33 is processed in the first space between the positioning holes 31a along the longitudinal direction of the material 31.

The disc 33 is manufactured by slitting or lancing the material 31.

When the material 31 is slitting or lancing, a cutting hole 31c having a plurality of connecting protrusions 31b is formed between the material 31 and the disc 33. The disc 33 is maintained in a state connected with the material 31 through a plurality of connecting projections (31b).

The reason for performing slitting or lancing processing on the material 31 is to minimize deformation of the material 31 when forming the foam 33 on the original plate 33 in the next step. The purpose is to enable the production of high quality tone wheels.

When the processing of the master plate 33 is finished, the next step is to form the center portion of the master plate 33 one or more times to form a projection 35 protruding from the master plate 33.

In the next step after the forming process, a piercing process is performed on the upper surface of the protrusion 35 to form the hole 37 in the upper surface of the protrusion 35.

After the piercing process, the burring process is performed, and after the burring process is completed, the press-fitting part 41 constituting the tone wheel 40 of the finished product is completed in the shape of a cylindrical protrusion protruding vertically from the disc 33. .

After fabrication of the press-fitting part 41 is completed, a blanking process is performed in the next step to separate the original plate 31 on which the press-fitting part 41 is formed from the material 31.

Here, the processing proceeds in one progressive mold from the slitting or the lancing to the blanking.

After the original plate 33 is separated from the raw material 31, a plurality of sensing holes 43 are processed in the outer edge of the original plate 33 by using a piercing punch provided in the piercing mold.

The piercing punch penetrates both sides of the disc 33, whereby the sensing hole 43 is formed to penetrate both sides of the disc 33, and also the outer edge of the disc 33. It is manufactured in the shape which opened toward the side.

The sensing hole 43 is processed to be arranged at equal intervals along the circumferential direction at the outer edge of the disc 33, and is formed to be arranged radially from the press-in portion 41.

The piercing punch for processing the sensing hole 43 can be processed by penetrating the disc 33 from the top to the bottom or from the bottom to the top, bar machining direction of the piercing punch according to the type of mold It is not preferable to limit to either method because it is determined.

In addition, after the disk 33 is separated from the material 31 for processing the sensing hole 43, the sensing hole 43 may be processed without inverting the upper and lower surfaces of the disk 33. As shown in the drawing of the present invention, the disc 33 may be separated from the raw material 31 and then the sensing hole 43 may be processed while the top and bottom surfaces of the disc 33 are inverted. It depends on the type. However, in the present invention, the sensing hole 43 is processed in the state where the upper and lower surfaces of the disc 33 are inverted. When the sensing hole 43 is processed while the upper and lower surfaces of the original plate 33 are inverted, the piercing punch processes the original plate 33 from the top to the bottom. At this time, the burr generated around the sensing hole 43 has a structure protruding downward of the disc 33 along the direction in which the press-fitting portion 41 exists.

After the processing of the sensing holes 43 is completed, in the next step, the disc 33 is the same as the protruding direction of the indentation part 41 around the boundary between the disc 33 and the indentation part 41. It is bent (bending) in the direction, and as a result, the finished tone wheel 40 having the sensing unit 45 in close contact with the outer circumferential surface of the press-in portion 41 is completed.

As described above, referring to FIGS. 3 and 4 of the finished tone wheel 40 of the finished product, the inner circumferential surface of the sensing unit 45 is in close contact with the outer circumferential surface of the press-fitting unit 41, and the sensing unit ( A plurality of sensing holes 43 at the end of the 45 has a shape provided at equal intervals along the circumferential direction.

In addition, the length L2 of the sensing part 45 is made shorter than the length L1 of the indentation part 41, and thus the sensing hole 43 has an inner circumference of the indentation part 41. It has a shape that is blocked by the surface.

The burr generated during the processing of the sensing hole 43 is in close contact with the outer circumferential surface of the press-fitting part 41 during the bending process of the disc 33, so that the tone wheel sensor has a smooth outer circumference of the sensing part 45 in which no burr exists. It will detect the face.

On the other hand, when the disc 33 is bent in the same direction as the projecting direction of the press-in portion 41 to produce a sensing unit 45 in close contact with the outer peripheral surface of the press-in portion 41, the sensing hole 43 may be deformed in a state in which the interval (pitch) is not constant.

In this case, the present invention is to restore the interval (pitch) of the sensing hole 43 at a predetermined interval through a post-processing step.

The post-processing step is largely divided into sizing processing and cam sizing processing.

First, the sizing processing is performed when the post-processing die 200 is operated in a state in which a product manufactured up to the sensing unit 45 is fixed to the post-processing die 200 as shown in FIG. 5. The punch 223 provided in the mold 200 is inserted into each of the sensing holes 43 at the same time in the vertical direction, thereby restoring the interval (pitch) of the sensing holes 43 at a predetermined interval.

That is, the post-processing mold 200 for the sizing process is largely composed of an upper mold 210 and a lower mold 220, and the upper mold 210 is provided with a pressure pad 211, and the lower mold 220. It is provided with a processing block 222 that elastically moves up and down via a spring 221.

The processing block 222 is provided with a hollow hollow inside the circular hollow, the upper portion of the hollow portion is open and blocked below, the spring 221 is once at the bottom of the processing block 222 It is installed in this supported structure, and the punch 223 of the same shape and number as the sensing hole 43 is integrally formed on the upper surface of the processing block 222.

Therefore, the press block 41 of the tone wheel 40 is inserted into the hollow portion of the processing block 222, and then the upper die 210 is operated and lowered, and the pressure pad 211 is the sensing unit 45. Press the upper surface of the press.

Then, one punch 223 of the machining block 222 is inserted at the same time in the vertical direction for each sensing hole 43. Accordingly, the interval (pitch) of the sensing holes 43 is fixed at a predetermined interval. Restoration will be done.

In addition, the cam sizing process is performed when the post-processing die 300 is operated in a state in which a product manufactured up to the sensing unit 45 is fixed to the post-processing die 300 as shown in FIG. 6. The cam punch () provided in the post-processing die 300 is inserted into the sensing hole 43 at the same time in the horizontal direction, thereby restoring the interval (pitch) of the sensing hole 43 at a predetermined interval.

That is, the post-processing die 300 for cam sizing is largely composed of an upper die 310 and a lower die 320, and the upper die 310 is provided with a pressure pad 311 and a cam drive 312. The lower mold 320 is provided with a machining block 321 and a cam punch 322.

The processing block 321 has a cylindrical shape so that the processing block 321 is inserted into the press-in portion 41 of the tone wheel 40.

The cam punch 322 is configured in the same number as the sensing hole 43, and the tip is formed in the same shape as the sensing hole 43.

The cam punch 322 is located on the side of the processing block 321, and when the upper die 310 is lowered, the cam punch 322 moves forward toward the processing block 321 due to contact with the cam drive 312. When the upper die 310 is raised is installed in a structure that can move back to the original position to return.

Therefore, after the press block 41 of the tone wheel 40 is inserted into the processing block 321 and installed, the upper die 210 operates to lower and the pressing pad 311 contacts the upper surface of the sensing unit 45. The tone hill 40 is fixed, and at the same time the cam drive 312 is in contact with the cam punch 322 to move the cam punch 322 toward the machining block 321.

Then, one end of the cam punch 322 is inserted into the sensing hole 43 at the same time in the horizontal direction. Accordingly, the interval (pitch) of the sensing hole 43 is restored at a predetermined interval. You lose.

When the disc 33 is bent in the same direction as the protruding direction of the press-fit part 41 to produce the sensing part 45 in close contact with the outer circumferential surface of the press-fit part 41, the press-fit part A gap may occur between the 41 and the sensing unit 45.

In this case, the present invention allows to manufacture the tone wheel 40 to improve the precision by eliminating the gap between the indentation portion 41 and the sensing unit 45 through a post-processing step.

That is, the post-processing step of eliminating the gap between the press-fitting part 41 and the sensing part 45 may be fitted to the product manufactured up to the sensing part 45 by inserting a ring-shaped brass material 410 into the product. When passing through the processing furnace 420 at a predetermined temperature, the molten material 410 melts and flows into a gap between the indentation part 41 and the sensing part 45 to be coupled to the indentation part 41 and the It is a brazing welding process that eliminates the gap between the sensing units 45.

The processing furnace 420 used in the brazing welding process is largely composed of a heating unit 421 and a cooling unit 422, the temperature of the heating unit 421 is to maintain a temperature of 950 ℃ to 1100 ℃. .

When the tone wheel 40 coupled with the brass material 410 passes through the heating part 421 for about 40 to 60 minutes, the brass material 410 is melted and the indentation part 41 and the sensing The molten brass material 410 is combined with the tone wheel 40 when it is cooled to 40 ° C. to 30 ° C. while passing through the gap between the parts 45 and then passed through the cooling part 422. ) And the gap between the sensing unit 45 is eliminated.

When the gap between the indentation part 41 and the sensing part 45 is eliminated through the brazing welding process as described above, rust may be prevented between the indentation part 41 and the sensing part 45. do.

The capillary phenomenon is a phenomenon in which the brass material 410 having a ring shape is melted by heat and flows into the gap between the indentation portion 41 and the sensing portion 45 to remove the gap during brazing welding. Action).

Brazing welding is suitable for use in products requiring precision because the shape and dimensions of the tone wheel 40 corresponding to the base material are not damaged, and there is no residual stress after the work. In addition to improving the appearance and appearance, it is characterized by excellent bonding strength and good airtightness.

8 to 10 are views of the bending die 100 of the manufacturing apparatus of the tone wheel 40 according to the present invention.

The mold used to manufacture the tone wheel 40 of the present invention is largely composed of a progressive mold, a piercing mold, and a bending mold 100.

The progressive mold is a mold that performs operations from slitting (or lancing) to blanking, as described above, from the disc 33 and the disc 33 separated from the material 31 via the progressive mold. Production of the vertically protruding press-fitting portion 41 is completed.

The piercing mold is a mold for processing a plurality of sensing holes 43 in a disc 33 separated from the material 31.

When the bending die 100 finishes the processing of the sensing hole 43, the disc 33 having the sensing hole 43 formed thereon is fixed to the pressing portion 41. It is a mold for producing a finished tone wheel 40 having a sensing unit 45 in close contact with the outer circumferential surface of the press-in portion 41 by bending in the protruding direction.

The most important of the apparatus for manufacturing the tone wheel 40 according to the present invention is the bending die 100, the bending die 100 will be described in detail with reference to FIGS.

The bending mold 100 is largely composed of a lower mold 110 and an upper mold 130.

The lower die 110 is provided with a lower die die 111 protruding in a multi-stage cylindrical shape is fixed to the center of the lower die 110, the outer side of the lower die die 111 is elastically raised via the return spring 113. A stripper 115 capable of lowering movement is installed, and a guide pin 117 is installed to guide the lowering movement of the stripper 115.

The lower die 111 is composed of two portions formed with different diameters, and a portion 111a having a relatively large diameter is fixedly installed on the lower mold 110 and has a relatively small diameter ( 111b is a structure formed integrally to be positioned above the portion 111a having a large diameter, and the die tuck 111c is present at the boundary between the two portions 111a and 111b.

Therefore, as shown in FIG. 8, in the state where the disc 33 on which the sensing hole 43 is formed faces upward and the press-in part 41 faces downward, the lower die 111 into the press-in part 41. When installed so as to be fitted, the portion 111b of which the diameter is small among the lower dies 111 supports the inner circumferential surface of the press-fitting portion 41, and the press-fitting portion 41 is formed on the die tuck 111c. The end of is seated and supported.

After the press-fitting portion 41 is installed in the lower die 111 as described above, the bottom surface of the disc 33 (the side in the direction in which the press-fitting portion protrudes) is seated on the stripper 115 based on the illustrated state of FIG. 8. Is supported.

On the other hand, the upper surface of the stripper 115 is integrally formed along the circumferential direction while the plurality of deformation preventing projections (115a) are inserted into each of the sensing holes 43 protruding upward.

Therefore, when the press-fit portion 41 is installed on the lower die 111 and the bottom surface of the disc 33 is seated and supported on the stripper 115, the stripper is formed in the sensing hole 43 formed in the disc 33. The deformation preventing protrusions 115a provided at 115 have a structure in which one protrusion is inserted into each hole.

In this case, the deformation preventing protrusion 115a inserted into the sensing hole 43 is preferably a structure that does not protrude upward through the sensing hole 43, and for this purpose, protrudes from an upper surface of the stripper 115. The height H1 of the deformation preventing protrusion 115a is formed so as not to exceed the thickness T1 of the disc 33.

On the other hand, a detailed description of the deformation preventing protrusion (115a) will be described later when explaining the operation of the bending mold (100).

The lower end of the guide pin 117 is fixed to the lower mold 110 and the upper end is a structure installed through the stripper 115.

In addition, an upper punch 131 is provided to press the disc 33 to the upper mold 130 to produce the sensing unit 45.

The upper punch 131 presses the upper surface (the surface not supported by the stripper of the both sides of the disk 33) on the basis of the illustrated state of Figure 8 when the upper die 130 is lowered, the disk ( 33) is made of a sensing unit 45 in close contact with the outer peripheral surface of the press-in portion 41.

Hereinafter, the operation of the bending die 100 will be described.

After processing the sensing hole 43 in the disc 33, it is installed so that the lower die 111 is inserted into the press-in portion 41 as shown in FIG.

At this time, the portion 111b having a smaller diameter among the lower dies 111 supports the inner circumferential surface of the press-fitting portion 41, and the press-fits on the die tuck 111c provided in the lower die 111. The end of the part 41 is seated and supported.

When the press-fit portion 41 is installed in the lower die 111, the bottom surface of the disc 33 is seated on the stripper 115 is supported.

In this case, the deformation preventing protrusions 115a provided in the stripper 115 are inserted into each of the sensing holes 43 formed in the disc 33.

On the other hand, the deformation preventing protrusion (115a) is the disc 33 is pressed by the upper punch 131 while being processed into the sensing unit 45 constituting the tone wheel 40 of the finished product, the disc 33 The size and shape of the formed sensing hole 43 and the distance between the sensing holes 43 are not changed, thereby making a great contribution to manufacturing the finished tone wheel 40 which can exhibit more precise and excellent performance.

If the stripper 115 is not provided with the deformation preventing protrusion 115a, when the disc 33 is processed into the sensing unit 45 by the pressure of the upper punch 131, the disc 33 Since the size and shape of the formed sensing hole 43 and the gap between the sensing holes 43 are changed, the tone wheel 40 of the finished product is manufactured as a defective product that cannot exhibit precise and excellent performance.

Accordingly, in order to significantly reduce the defective rate of the finished tone wheel 40 of the finished product, the bending mold 100 may be formed by adjusting the size and shape of the sensing hole 43 formed in the disc 33 and the distance between the sensing holes 43. It is preferable to keep it unchanged even after processing of the used sensing unit 45, and the deformation preventing protrusion 115a provided in the stripper 115 according to the present invention corresponds to an important component for performing this role. .

In addition, the deformation preventing protrusion 115a inserted into the sensing hole 43 of the disc 33 does not protrude upward through the sensing hole 43 and thus the height H1 of the deformation preventing protrusion 115a. Is formed so as not to exceed the thickness (T1) of the disc 33, so that the upper punch 131 to directly press the disc (33).

If the deformation preventing protrusion 115a protrudes upward through the sensing hole 43 of the disc 33, the upper punch 131 does not press the disc 33 without pressing the disc 33. By pressing the 115a, the disc 33 cannot be processed into the correct shape of the sensing unit 45 constituting the tone wheel 40 of the finished product, and as a result, the tone wheel 40 of the finished product is produced as a defective product. do.

As described above, the press-fitting portion 41 provided in the disc 33 is fitted to the lower die 111, and the bottom surface of the disc 33 is seated and supported by the stripper 115, and the disc 33 After the deformation preventing protrusion 115a provided in the stripper 115 is inserted into the sensing hole 43 formed in the upper side of the upper die 130, the upper punch 131 is based on the illustrated state of FIG. 5. The upper surface of the disk 33 (the surface not supported by the stripper on both sides of the disk) is pressed.

If the upper die 130 continues to descend while the upper punch 131 presses the upper surface of the disc 33, the disc 33 is formed by the lowering of the stripper 115 to form a boundary with the indentation portion 41. Bending of the press-fitting portion 41 protrudes toward the center.

When the upper die 130 is in the maximum downward state as shown in FIG. 10, the stripper 115 is also in the maximum downward state, and the original plate 33 which is in a right angle with the initial indentation part 41 is the indentation part 41. The outer peripheral surface of the inner circumferential surface is made of the sensing unit 45 making close contact.

Here, the stripper 115 and the upper punch 131 does not contact the die tuck 111c of the lower die 111 when descending.

As shown in FIG. 10, when the upper mold 130 is in the maximum descending state, the manufacturing is completed as the finished tone wheel 40, and the worker moves the upper mold 130 from the bending mold 100 after the upward movement of the finished product. 40) is taken out.

The tone wheel 40 of the finished product thus manufactured has the shape and configuration described above with reference to FIG. 3.

The tone wheel 40 of the finished product manufactured by the manufacturing method and apparatus according to the present invention has the following advantages.

First, even when rust occurs in the rotating body 1 when the tone wheel 40 of the present invention is installed and used on the rotating body 1, the melted indentation part 41 generated in the rotating body 1 is blocked. Since it is impossible to move to the sensing unit 45, and this prevents the phenomenon that rust generated in the rotating body 1 is filled with the sensing hole 43, the tone wheel 40 of the present invention is the rotating body 1. Irrespective of the rust that occurs in the long-term use, even if used for a long time there is an advantage that can exhibit the function, through which the tone wheel 40 of the present invention can be used to increase the service life and durability.

That is, the rotary body 1 to which the tone wheel 40 is coupled does not need to paint the rotary body 1 separately due to cost reduction, etc., but combines with the tone wheel 40 to perform the painting work together with the tone wheel 40. do.

Accordingly, the portion combined with the tone wheel 40 of the entire portion of the rotating body 1 is covered by the tone wheel 40 so that the painting is not made.

In this way, the coupling part with the tone wheel 40, which is not painted in the rotating body 1, is gradually rusted by moisture when used for a long time.

However, even if rust occurs in the rotating body 1, since the rust generated in the rotating body 1 is blocked by the press-in part 41 of the tone wheel 40 of the present invention, the movement to the sensing unit 45 becomes impossible. The phenomenon in which rust generated in the rotating body 1 is filled with the sensing hole 43 is prevented.

This result. The tone wheel 40 of the present invention has the advantage that it can always exert its function even if used for a long time regardless of rust generated in the rotating body 1, through which the tone wheel 40 of the present invention increases the service life and durability It will be possible to plan.

Second, the tone wheel 40 of the present invention is not a configuration in which the press-fitting portion 41 and the sensing portion 45 are assembled to each other after being manufactured as separate products, but the press-fitting portion 41 and the sensing portion 45 ) Is integrated, so that a number of new problems such as mold cost increase, manufacturing cost rise, excessive manufacturing time, productivity decrease, etc., which are shown as disadvantages in the conventional tone wheel 20 described above with reference to FIG. do.

That is, the tone wheel 40 of the present invention can achieve a reduction in mold cost and manufacturing cost, can improve the productivity by reducing the production time, and further has the advantage of greatly reducing the unnecessary waste of the material.

Third, the tone wheel 40 of the present invention is a product in which the spacing (pitch) of the sensing hole 43 is constantly maintained through sizing or cam sizing, so that the improved precision can be provided. By doing so, there is also an advantage that performance can be achieved.

Fourth, the tone wheel 40 of the present invention is a product that eliminates the gap between the indentation portion 41 and the sensing portion 45 through the brazing (brazing) welding process, it is possible to have more improved precision and excellent strength, this It also has the advantage of better performance.

When the gap between the press-fit part 41 and the sensing part 45 disappears as described above, the phenomenon in which rust occurs between the press-fit part 41 and the sensing part 45 may be prevented in advance.

In addition, ABS, TCS, VDC and the like using the tone wheel 40 of the present invention also has the advantage that the performance is excellent.

1-Rotator 31-Material
33-Disc 40-Tone Wheel
41-indentation 43-sensing hole
45-sensing part 100-bending mold
110-Bottom 111-Bottom Die
113-Return Spring 115a-Strain Relief
115-Stripper 117-Guide Pins
130-Pic 131-Punch

Claims (33)

Processing the material (31) to produce a disc (33) connected to the material (31) and a press-in portion (41) projecting perpendicularly from the disc (33);
Separating the disc 33 from the material 31 and then processing the outer edge of the disc 33 to produce a plurality of sensing holes 43 are arranged radially around the indentation (41) Wow;
The disc 33 is machined in the same direction as the protruding direction of the press-fit part 41 with the center of the boundary between the disc 33 and the press-fit part 41 in close contact with the outer circumferential surface of the press-fit part 41. In the manufacturing method of the tone wheel for a vehicle comprising; manufacturing a tone wheel 40 of the finished product having the sensing unit 45,
The sensing hole 43 is processed by piercing punch penetrating the outer edge of the disk 33 from top to bottom in a state inverting the upper and lower surfaces of the disk 33 separated from the material 31,
The sensing unit 45,
After processing the sensing hole 43 in the disc 33, the disc 33 is the same as the protruding direction of the press-fitting portion 41 while the top and bottom surfaces of the disc 33 are maintained. It is manufactured by bending in the direction; manufacturing method of a vehicle tone wheel, characterized in that. The method of claim 1, wherein the press-in portion 41,
It is produced by sequentially forming the center portion of the disc 33, piercing process, burring process;
Method for manufacturing a vehicle tone wheel, characterized in that. The method according to claim 1, wherein after the fabrication of the press-in portion 41 and blanking the disc 33 to separate from the material (31);
Method for manufacturing a vehicle tone wheel, characterized in that. delete delete The deformation preventing protrusion 115a of the bending die 100 is provided for each sensing hole 43 existing in the disc 33 when the disc 33 is processed by the sensing unit 45. Machining with one insert);
Method for manufacturing a vehicle tone wheel, characterized in that. The method of claim 1, wherein the sensing unit 45 is made of a shorter length than the press-in portion 41 so that the inside of the sensing hole 43 is blocked by the outer peripheral surface of the press-in portion 41;
Method for manufacturing a vehicle tone wheel, characterized in that. Processing the material (31) to produce a disc (33) connected to the material (31) and a press-in portion (41) projecting perpendicularly from the disc (33);
Separating the disc 33 from the material 31 and then processing the outer edge of the disc 33 to produce a plurality of sensing holes 43 are arranged radially around the indentation (41) Wow;
The disc 33 is bent in the same direction as the protruding direction of the indentation part 41 around the boundary between the disc 33 and the indentation part 41 to the outer circumferential surface of the indentation part 41. Manufacturing a close sensing unit 45;
In the manufacturing method of the tone wheel for a vehicle comprising a; post-processing step of restoring the interval (pitch) of the sensing hole 43 deformed in the manufacturing step of the sensing unit at a predetermined interval;
The sensing hole 43 is processed by piercing punch penetrating the outer edge of the disk 33 from top to bottom in a state inverting the upper and lower surfaces of the disk 33 separated from the material 31,
The sensing unit 45,
After processing the sensing hole 43 in the disc 33, the disc 33 is the same as the protruding direction of the press-fitting portion 41 while the top and bottom surfaces of the disc 33 are maintained. It is manufactured by bending in the direction; manufacturing method of a vehicle tone wheel, characterized in that. The method of claim 8, wherein the press-in portion 41,
It is produced by sequentially forming the center portion of the disc 33, piercing process, burring process;
Method for manufacturing a vehicle tone wheel, characterized in that. The method according to claim 8, wherein after fabricating the press-in portion 41 and blanking the disc 33 to separate from the material (31);
Method for manufacturing a vehicle tone wheel, characterized in that. delete delete The deformation preventing protrusion 115a of the bending die 100 is provided for each sensing hole 43 existing in the disc 33 when the disc 33 is processed by the sensing unit 45. Machining with one insert);
Method for manufacturing a vehicle tone wheel, characterized in that. The method of claim 8, wherein the sensing unit 45 is made of a shorter length than the press-in portion 41 so that the inside of the sensing hole (43) is blocked by the outer peripheral surface of the press-in portion (41);
Method for manufacturing a vehicle tone wheel, characterized in that. The method according to claim 8, wherein the post-processing step,
The punch 223 provided in the post-processing die 200 is the sensing hole 43 when the post-processing die 200 is operated while the product manufactured up to the sensing unit 45 is fixed to the post-processing die 200. It is a sizing process for restoring the interval (pitch) of the sensing hole 43 at a predetermined interval while being inserted at the same time one by one in the vertical direction;
Method for manufacturing a vehicle tone wheel, characterized in that. The method according to claim 8, wherein the post-processing step,
When operating the post-processing die 300 in a state where the product manufactured up to the sensing unit 45 is fixed to the post-processing die 300, the cam punch 322 provided in the post-processing die 300 is the sensing hole ( 43 is a cam sizing process for restoring the interval (pitch) of the sensing hole 43 at a predetermined interval while being inserted simultaneously in one horizontal direction one by one;
Method for manufacturing a vehicle tone wheel, characterized in that. Processing the material (31) to produce a disc (33) connected to the material (31) and a press-in portion (41) projecting perpendicularly from the disc (33);
Separating the disc 33 from the material 31 and then processing the outer edge of the disc 33 to produce a plurality of sensing holes 43 are arranged radially around the indentation (41) Wow;
The disc 33 is bent in the same direction as the protruding direction of the indentation part 41 around the boundary between the disc 33 and the indentation part 41 to the outer circumferential surface of the indentation part 41. Manufacturing a close sensing unit 45;
A post-processing step of manufacturing the sensing unit 45 and then eliminating gaps between the press-fitting unit 41 and the sensing unit 45 to improve precision;
Method for manufacturing a vehicle tone wheel comprising a. The method of claim 17, wherein the press-in portion 41,
It is produced by sequentially forming the center portion of the disc 33, piercing process, burring process;
Method for manufacturing a vehicle tone wheel, characterized in that. 18. The method of claim 17, further comprising: blanking the original plate (33) after the completion of the press-fitting unit (41) to separate it from the material (31);
Method for manufacturing a vehicle tone wheel, characterized in that. The method according to claim 17, The sensing hole 43,
A piercing punch being processed through the outer edge of the disc 33 from top to bottom in an inverted state of the top and bottom surfaces of the disc 33 separated from the material 31;
Method for manufacturing a vehicle tone wheel, characterized in that. The method according to claim 20, The sensing unit 45,
After processing the sensing hole 43 in the disc 33, the disc 33 is the same as the protruding direction of the press-fitting portion 41 while the top and bottom surfaces of the disc 33 are maintained. Manufactured by bending in the direction;
Method for manufacturing a vehicle tone wheel, characterized in that. The deformation preventing protrusion 115a provided in the bending die 100 for each sensing hole 43 existing in the disc 33 when the disc 33 is processed into the sensing unit 45. Machining with one insert);
Method for manufacturing a vehicle tone wheel, characterized in that. The method of claim 21, wherein the sensing unit 45 is made of a shorter length than the press-in portion 41 so that the inside of the sensing hole 43 is blocked by the outer peripheral surface of the press-in portion 41;
Method for manufacturing a vehicle tone wheel, characterized in that. The method according to claim 17, wherein the post-processing step,
Insert the brass member 410 in the annular shape to the product manufactured up to the sensing unit 45 and then pass the processing furnace 420 at a predetermined temperature while melting the material 410 while the indentation unit 41 It is a brazing welding process to eliminate the gap between the press-fit portion 41 and the sensing portion 45 by flowing into the gap between the sensing portion 45 and the sensing portion 45;
Method for manufacturing a vehicle tone wheel, characterized in that. The indenting part 41 and the sensing part 45 are melted when the brass material 410 is heated in the processing furnace 420 at a temperature of 950 ° C. to 1100 ° C. for about 40 minutes to 60 minutes. Flows into the gap between the) and is then combined with the product when cooled to 40 ° C. to 30 ° C. so as to eliminate the gap between the indentation part 41 and the sensing part 45;
Method for manufacturing a vehicle tone wheel, characterized in that. A press-fitting part 41 press-fitted to the rotating body;
A plurality of sensing holes 43 are formed at equal intervals along the circumferential direction while being bent at one end of the indentation part 41 to be in close contact with the outer circumferential surface of the indentation part 41. In the vehicle tone wheel manufactured by the manufacturing method of any one of claims 1 to 25,
The length L1 of the indentation part 41 is longer than the length L2 of the sensing part 45 so that the inside of the sensing hole 43 is blocked by the outer circumferential surface of the indentation part 41. Vehicle tone wheel, characterized in that. The method according to claim 26, The sensing hole 43,
It is formed so as to penetrate both sides of the sensing unit 45 is formed to be opened toward the outer edge of the sensing unit 45;
Vehicle tone wheel, characterized in that. delete A mold for processing a plurality of sensing holes 43 on the disc 33 and the press-in portion 41 protruding perpendicularly from the disc 33 and an outer edge of the disc 33;
The disc 33 in which the sensing hole 43 is formed is bent toward the protruding direction of the indentation part 41 while the indentation part 41 is fixed, thereby being in close contact with the outer circumferential surface of the indentation part 41. Bending mold 100 for producing a tone wheel 40 of the finished product having a sensing unit 45;
An apparatus for manufacturing a vehicle tone wheel comprising a. The method of claim 29, wherein the bending mold 100,
The die tuck 111c is provided on the outer circumferential surface so as to be inserted into the press-fit portion 41 to support the inner circumferential surface of the press-fit portion 41 and the end of the press-fit portion 41 is seated and supported. A lower die 111;
The sensing while being installed to move up and down through the return spring 113 to elastically support one side of the disk 33 in the direction in which the press-in portion 41 protrudes from the disk 33 A stripper 115 having a plurality of deformation preventing protrusions 115a inserted into the holes 43 to protrude upward from the upper surface thereof;
The sensing unit 45 is pressed against the opposite side of the disc 33, which is not supported by the stripper 115 toward the protruding direction of the press-in part 41 to be in close contact with the outer peripheral surface of the press-in part 41 The upper punch 131 to produce;
Apparatus for manufacturing a tone wheel for a vehicle comprising a. The method of claim 30, the bending die 100,
A plurality of guide pins 117 having an upper end installed through the stripper 115 and a lower end fixed to the lower mold 110 to guide the lifting and lowering movement of the stripper 115;
Apparatus for manufacturing a tone wheel for a vehicle further comprising a. 31. The method of claim 30, wherein the shape of the sensing hole (43) provided in the disc 33 and the shape of the deformation preventing protrusion (115a) provided in the stripper 115 is formed to be the same;
An apparatus for manufacturing a vehicle tone wheel, characterized in that. The top surface of the stripper 115 of claim 30, wherein the upper punch 131 is prevented from contacting the deformation preventing protrusion 115a when the upper punch 131 presses the disc 33. Height (H1) of the deformation preventing protrusion (115a) protruding from the formed to not exceed the thickness (T1) of the disc (33);
An apparatus for manufacturing a vehicle tone wheel, characterized in that.

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