JP3714826B2 - Rubber flash removing device and rubber flash removing method for metal rubber composite product - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technique for removing a rubber beam adhering to an unnecessary portion of a substrate surface in a metal rubber composite product in which a rubber material is bonded to a part of a metal substrate.
[0002]
[Prior art]
This type of metal rubber composite product is widely used in various parts of vehicles. In such a metal rubber composite product, it is difficult to completely prevent the rubber beam from adhering to the unused portion of the surface of the metal base, and such a rubber beam is conventionally used as a knife. It was shaved off manually using a tool such as a blade or a ruter. However, such manual work has the disadvantages of poor work efficiency and variations in the finish.
[0003]
Therefore, in order to stabilize the work efficiency and the quality of the finished product, Japanese Utility Model Laid-Open No. 4-63301 scrapes off the rubber beam by sliding the rubber beam removal tool on the surface of the rotating metal rubber composite substrate. The technology is described. In this publication, the rubber beam removing tool is elastically brought into contact with the substrate so as not to damage the surface of the substrate.
[0004]
[Problems to be solved by the invention]
However, such a rubber beam removing tool is generally formed of a hard material such as a metal and has a sharp shape like a blade, which may also damage the surface of the substrate. . As a result, for example, when the surface of the substrate is subjected to surface treatment such as plating, the effect of the surface treatment is lost.
[0005]
The present invention has been made in view of such problems, and an object of the present invention is to provide an apparatus and method that can remove a rubber beam with high work efficiency without damaging the surface of a substrate.
[0006]
[Means for Solving the Problems]
The metal rubber composite used in the present invention is a retainer and bracket applied to a suspension mechanism of a vehicle, for example, in which a rubber material having the same axis as the base is bonded to a part of a metal base. Etc.
[0007]
The rubber beam removing apparatus according to the present invention includes a turntable, a shaft support means for supporting the metal rubber composite product on the turntable, and a relative rotation of the turntable with respect to the metal rubber composite product about the axis. A driving means for driving and a resin-made chip mounted on the turntable, and the chip is intermittently provided at three or more positions around the axis so as to support the metal rubber composite product in the axial direction. In addition, the upper surface of each chip is formed as a flat surface facing the surface of the substrate to which the rubber beam adheres.
[0008]
Further, in the rubber beam removing method according to the present invention, three or more resin-made chips are intermittently provided around the axis on the turntable, and a metal rubber composite product is placed on these chips. While the product is pivotally supported with respect to the turntable, the turntable is driven to rotate relative to the metal rubber composite product, and the top surface of each flat chip facing the surface of the base to which the rubber beam adheres is It is characterized by being brought into sliding contact with.
[0009]
As described above, the chip for removing the rubber beam is formed of a resin material that is harder than the rubber material and sufficiently softer than the metal base, and the top surface of the chip is a flat surface that faces the base surface. Therefore, even if this chip is in sliding contact with the substrate surface, there is no risk of damaging the substrate surface.
[0010]
Moreover, since three or more chips are intermittently provided around the axis, the metal rubber composite product can be stably supported in the axial direction by using these chips without providing a separate support mechanism.
[0011]
Furthermore, by setting the size, shape, and mounting position of the chip so that the rotation trajectory of the chip upper surface covers the rubber beam formation range, the chip or metal rubber composite product can be removed during the actual rubber beam removal operation. It is not necessary to perform alignment by moving in the direction perpendicular to the axis. Therefore, there is no need to provide a mechanism for driving and controlling the chip or the metal rubber composite product in the direction perpendicular to the axis.
[0012]
Desirably, it has a chip holding base fixed on the rotating table and detachably holding each chip so that when the chip is worn, only the chip can be removed from the chip holding base and replaced. It has become.
[0013]
The chip desirably includes a first chip that faces the surface of the base on the inner side of the rubber material, and a second chip that faces the surface of the base on the outer side of the rubber material. In this case, even if the heights of the inner peripheral substrate surface and the outer peripheral substrate surface are different from each other across the rubber material, the height of the first and second chips depends on the height of each substrate surface. By setting the thickness, the rubber beam adhering to both the substrate surfaces can be removed simultaneously.
[0014]
More preferably, it has a chip pressing means for pressing the first and second chips substantially uniformly toward the metal rubber composite product side. In this case, since the pressing force of the first and second chips is made uniform, the rubber flash adhering to both base surfaces can be efficiently removed without unevenness.
[0015]
Desirably, a sensor for detecting the presence or absence of a rubber beam is provided on a turntable facing the rubber beam.
[0016]
【The invention's effect】
According to the first or second aspect of the invention, even if the chip upper surface is in sliding contact with the substrate surface, there is no risk of damaging the substrate surface, and the dimensional accuracy of the substrate surface is deteriorated or the surface treatment performance is deteriorated by removing the rubber beam. There is no fear.
[0017]
Further, since the metal rubber composite product can be stably supported in the axial direction by using three or more chips without providing a separate support mechanism, the apparatus is simplified and the work efficiency is improved.
[0018]
Furthermore, since it is not necessary to perform alignment by moving the chip or the metal rubber composite product in the direction perpendicular to the axis, the apparatus is simplified and the work efficiency is improved.
[0019]
According to the invention of claim 3, only the worn tip can be easily replaced.
[0020]
According to the inventions of claims 4 and 5, even if the height of the base surface on the inner peripheral side and the base surface on the outer peripheral side with respect to the rubber material are different from each other, It can be removed at the same time, and the work efficiency is further improved.
[0021]
According to the invention of claim 6, since the presence or absence of the rubber beam is automatically and promptly detected by the sensor, it is possible to reliably avoid waste such as continuing the rubber beam removal operation without the rubber beam, and the work efficiency is further improved. improves.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
First, with reference to FIGS. 5-7, the lower retainer as the metal rubber composite product 20 used in the embodiment of the present invention, that is, the lower retainer 20 which is one part of the strut mount insulator 12 of the vehicle will be described.
[0023]
As shown in FIG. 5, a strut mount insulator 12 that appropriately suppresses transmission of vibration between the shock absorber 10 and the strut tower 11 constituting the front suspension of the vehicle and the strut tower 11 is interposed. It is disguised. The strut mount insulator 12 is joined to the upper side of the upper spring seat 14 via a bracket 13 and is fastened and fixed to the strut tower 11 via a mounting bolt 15. The strut mount insulator 12 has a dish-shaped lower retainer as the metal rubber composite product 20, and has an insulator rubber 17 interposed between the lower retainer 20 and the applicator 16.
[0024]
As shown in FIGS. 6 and 7, the lower retainer 20 has a rubber lip 22 made of a rubber material having the same axis O as the base 21 bonded to a part of a metal base 21 having a dish shape. The base 21 has a shaft hole 23 formed in the center thereof, and three mounting holes 24 for mounting bolts 15 formed in a flange portion projecting outward. The rubber lip 22 is bonded to the surface of the base body 21 at the same time as, for example, vulcanization molding, and extends in a ring shape along the stepped portion 21c of the base body 21 having a stepped shape. In the assembled state, the gap between the applicator 16 is appropriately sealed. The axial height differs between the inner peripheral surface 21a and the outer peripheral surface 21b of the base body 21 with the rubber lip 22 interposed therebetween. The rubber lip 22 is partially formed with an auxiliary protrusion 22a.
[0025]
In such a lower retainer, that is, the metal rubber composite product 20, rubber burrs 25 and 26 (see FIG. 1) are inevitably formed on the inner peripheral surface 21a and the outer peripheral surface 21b of the base body 21 with the rubber lip 22 interposed therebetween. Adhere to. The apparatus and method for removing such rubber beams 25 and 26 will be described in detail with reference to FIGS.
[0026]
As shown in FIG. 1, the base 32 of the rubber beam removing device is attached with a disk-shaped rotary table 30 and an air motor 34 as a drive source for rotating the rotary table 30 about the axis O ′. Yes. The turntable 30 has a posture that is appropriately inclined with respect to a horizontal plane so that the work can be easily performed.
[0027]
A cylindrical guide pin 36 is erected on the upper surface of the turntable 30 along the rotation axis O ′ of the turntable 30. By inserting the shaft hole 23 of the metal rubber composite product 20 into the guide pin 36, the metal rubber composite product 20 is pivotally supported relative to the turntable 30.
[0028]
Around the guide pin 36, three chip holding bases 38 are fixed via mounting screws 40, and each chip holding base 38 is intermittently arranged around the rotation axis O 'at equal intervals. ing. Each chip holding base 38 is formed in a stepped shape having a step in the radial direction corresponding to the metal rubber composite product 20 having a stepped shape. In addition, slit-like mounting grooves 42 and 43 are formed on the inner peripheral side and the outer peripheral side, respectively.
[0029]
A rectangular first chip 44 and second chip 45 made of a synthetic resin material such as MC nylon are fitted in the mounting grooves 42 and 43 so as to be slidable in the axial direction. As will be described later, the sizes, shapes, and mounting positions of the chips 44 and 45 are set so that the rubber beams 25 and 26 are surely removed by sliding contact with the rubber beams 25 and 26 as will be described later. That is, the rotation trajectories of the chips 44 and 45 are set so as to cover the formation ranges of the rubber beams 25 and 26 when viewed in the axial direction.
[0030]
The chips 44 and 45 are detachably held on the chip holder 38 so that they can be easily replaced when worn.
[0031]
Here, the upper surfaces 44a and 45a of the chips 44 and 45 projecting from the upper surface of the chip holding base 38 can be brought into uniform surface contact with the substrate surfaces 21a and 21b to which the rubber beams 25 and 26 adhere, respectively. , 21b is formed on a flat surface facing in parallel.
[0032]
Further, as shown in FIG. 3, the chip holding base 38 has a piston 46 that presses the lower surface side of the chips 44 and 45 so that the chips 44 and 45 press the base surfaces 21a and 21b with a uniform pressure. , 47 are provided, compressed fluid branch passages 48, 49 for urging the pistons 46, 47 are provided, and the rotary base 30 is provided with compressed fluid communicating with the branch passages 48, 49. A main passage 50 is formed. An O-ring 52 that seals between the inner walls of the branch passages 48 and 49 is attached to the outer periphery of the pistons 46 and 47.
[0033]
Furthermore, as shown in FIG. 4, color identification sensors 54 and 55 are attached to the upper surface side of the turntable 30 at positions facing the rubber beams 25 and 26, respectively. Each of the color identification sensors 54 and 55 detects the presence or absence of the rubber beams 25 and 26 based on the color difference between the rubber beams 25 and 26 and the substrate surfaces 21a and 21b.
[0034]
Next, a rubber beam removing method using such a rubber beam removing device will be described. First, the shaft hole 23 of the metal rubber composite product 20 is inserted into the guide pin 36 of the turntable 30, and the metal rubber composite product 20 is placed on the chips 44 and 45. Next, the metal rubber composite product 20 is pressed to the turntable 30 side with a predetermined pressure by a work pressing means such as an air cylinder (not shown), and the chips 44 and 45 are moved by the pistons 46 and 47 to the metal rubber composite product 20 side. Press evenly. Thereby, each chip | tip 44 and 45 contacts the base | substrate surface 21a, 21b or the rubber beam 25, 26 adhering to this with uniform pressure.
[0035]
In this state, the rotary table 30 is driven to rotate by the air motor 34, and the rotary table 30 is driven to rotate relative to the metal rubber composite product 20 about the axis O ′. As a result, the upper surfaces 44a and 45a of the chips 44 and 45 of the turntable 30 come into sliding contact with the rubber beams 25 and 26 attached to the base surfaces 21a and 21b, and the rubber beams 25 and 26 are quickly removed by the friction.
[0036]
When there is a possibility that the metal rubber composite product 20 rotates with the turntable 30, the rotation of the metal rubber composite product 20 may be restricted using a chuck or the like.
[0037]
As described above, the chips 44 and 45 from which the rubber beams 25 and 26 are removed are formed of a resin material that is harder than the rubber beams 25 and 26 and sufficiently softer than the metal base 21. Since the upper surfaces 44a and 45a of 44 and 45 are flat surfaces opposed to the substrate surfaces 21a and 21b, even if the chips 44 and 45 are in sliding contact with the substrate surfaces 21a and 21b, the substrate surfaces 21a and 21b There is no risk of injury. Therefore, the removal operation of the rubber beams 25 and 26 does not deteriorate the dimensional accuracy of the substrate surfaces 21a and 21b or hinder the surface treatment performance.
[0038]
Further, since the first chip 44 and the second chip 45 are intermittently provided at three positions around the axis, the metal rubber composite article 20 can be stably supported in the axial direction by these chips 44 and 45. In addition, since it is not necessary to provide a separate support mechanism, the apparatus is simplified, the number of work steps is reduced, and the work efficiency is improved.
[0039]
Furthermore, during the actual rubber beam removal operation, it is not necessary to relatively align the tips 44 and 45 and the metal rubber composite product 20 in the direction perpendicular to the axis using an appropriate drive control mechanism, thereby simplifying the apparatus. As a result, work efficiency is improved.
[0040]
Further, the first chip 44 and the second chip 45 can simultaneously remove the rubber beams 25 and 26 attached to the inner peripheral surface 21a and the outer peripheral surface 21b of the base 21 having different heights.
[0041]
In addition, since the pressing force of the chips 44 and 45 to the metal rubber composite product 20 side is made uniform by the pistons 46 and 47, the rubber beams 25 and 26 attached to the base body surfaces 21a and 21b having different axial heights. Both of them can be effectively removed evenly.
[0042]
In addition, since the presence or absence of the rubber burrs 25 and 26 is automatically and promptly detected by the color identification sensors 54 and 55, the waste of continuing the rubber burring removal operation without the rubber burrs 25 and 26 can be reliably avoided. Work efficiency is further improved.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing a rubber beam removing device for a metal rubber composite product according to an embodiment of the present invention.
FIG. 2 is a top view of the rubber flash removing device.
FIG. 3 is a cross-sectional view of the rubber beam removing device, in which the rotary table is cut at a chip holding table.
FIG. 4 is a cross-sectional view of the rotary table taken along a color identification sensor.
FIG. 5 is a cross-sectional view of an upper portion of a front suspension of a vehicle including a lower retainer as a metal rubber composite product.
FIG. 6 is a plan view of the lower retainer.
FIG. 7 is a sectional view of the lower retainer.
[Explanation of symbols]
20 ... Lower retainer (metal rubber composite)
21 ... Substrate 22 ... Rubber lip (rubber material)
25, 26 ... rubber beam 30 ... turntable 34 ... air motor (drive means)
36 ... Guide pin (shaft support means)
38 ... Chip holding bases 44,45 ... Chips 46,47 ... Piston (Chip pressing means)
54, 55 ... Color identification sensor

Claims (6)

In a rubber beam removing apparatus for a metal rubber composite product in which a rubber material having the same axis as that of a base is bonded to a part of a metal base,
A turntable, a shaft support means for pivotally supporting the metal rubber composite product on the turntable, a drive means for driving the turntable relative to the metal rubber composite product about its axis, and a mounting means mounted on the turntable A resin-made chip, and
The chips are provided at three or more locations intermittently around the axis so as to support the metal rubber composite product in the axial direction, and the upper surface of each chip is a flat surface facing the surface of the substrate to which the rubber beam adheres. A rubber beam removing device for a metal rubber composite product, characterized in that it is formed into a metal rubber composite product. In a method for removing a rubber beam of a metal rubber composite product in which a rubber material having the same axis as that of a base is bonded to a part of a metal base,
Three or more resin chips are intermittently provided on the turntable around the axis, and the metal rubber composite product is placed on these chips and the metal rubber composite product is pivotally supported with respect to the turntable. The metal rubber composite characterized in that the rotary table is driven to rotate relative to the metal rubber composite product, and the upper surface of each flat chip facing the surface of the base to which the rubber beam adheres is brought into sliding contact with the rubber beam. To remove rubber burrs. The fixed onto turntable, the rubber burrs removal equipment metal rubber composite article according to claim 1, characterized in that it has a chip holder that holds each chip detachably. The chip includes a first chip that faces a substrate surface on an inner peripheral side from the rubber material, and a second chip that faces a substrate surface on an outer peripheral side from the rubber material. rubber burr removal equipment metal rubber composite article according to claim 1 or 3. The first, rubber burrs removal equipment metal rubber composite article according to claim 4, characterized in that it comprises a chip pressing means for the second chip are uniformly pressed into the metal rubber composite article side. On turntable facing the rubber burrs, claim 1, 3-5 rubber burr removal equipment metal rubber composite article according to any one of the characterized in that a sensor for detecting the presence or absence of rubber Beams .

Images