JP3168289U - Polishing buff and polishing method - Google Patents

Abstract

Provided is a polishing buff capable of satisfactorily polishing a painted surface even by an inexperienced operator and further easy to handle. A polishing member having an end surface in an axial direction in a rotating direction as a polishing surface and an engaging surface in which the other end surface is detachably attached to a member to be engaged, is elastic and has an axial direction. Cushion member 30 having both end surfaces detachably engaged with the engagement target member, and an engagement surface detachably engaging both axial end surfaces with the engagement target member. It is formed using one or two or more plate members 20 that can be disposed between at least one portion between the pad 40 and the cushion member and between the cushion member and the polishing member. Polishing buff. [Selection] Figure 3

Description

  The present invention relates to a polishing buff used for polishing a painted surface such as an automobile body.

  Motorized or air-operated polishing tools (polishers) with polishing buffs are used for car body polishing, paint peeling, putting polishing, waxing, and other various coating finishing operations. in use.

  This polishing buff is detachably attached to the pad main body attached to the rotary drive shaft of the polishing machine, and in actual work, several types of wool buff, sponge buff, etc. are prepared in advance, It is customary to proceed with work while replacing these polishing buffs according to the work content.

  The polishing buff is formed so as to have a certain elasticity in order to eliminate inconvenience when a panel having a three-dimensional shape is polished. That is, if the polishing buff does not have any elasticity, when polishing the protruding part, excessive polishing force acts on the protruding part and damages the panel and the coating film. Therefore, in order to disperse or absorb such an excessive polishing force, it is formed as having elasticity as appropriate (see Patent Document 1: Utility Model Registration No. 3098705).

  Moreover, in the said patent document 1, it is proposed to interpose a buff intermediate mounting base between a buff and a buff mounting base, and when aligning a buff and a buff intermediate mounting base, the center formed in each is formed Is used as a mark. At the same time, this buffing intermediate mounting base is for ensuring the distance between the buffing and the buffing mounting base, and the hole used for alignment is a buff (or buffing intermediate mounting base) It is used only as a so-called mark for performing alignment while observing the hole formed in the object to be overlapped.

Further, Patent Document 2 (utility model registration No. 3107068) proposes a polishing buff for an automobile body in which a buff member having one surface as a polishing surface is attached to an intermediate mounting pad made of cushioning urethane or the like. However, this document relates to improvement of a buff for wet polishing, for example, a plurality of through holes are formed in a buff member to reduce water scattering.
Utility Model Registration No. 3098705 Utility Model Registration No. 3107068

  When using the polishing buff to polish a painted surface, first place the buff on a rotary polisher, and the operator pushes the buff (polishing tool) against the painted surface while holding the rotary polisher. A method of moving the parts to be polished in order while applying is adopted. However, when using such a rotary polisher, it is not possible to polish the painted surface well unless it is a skilled worker. Circular polishing marks may remain.

  Therefore, the first object of the present invention is to provide a polishing buff that can polish a painted surface satisfactorily even by an inexperienced worker and that can be easily handled.

  In addition, even inexperienced workers can prevent the coating surface from being scratched by applying sufficient elasticity to the polishing area including the polishing buff and pressing the rotary polisher with excessive force. While it is conceivable to disperse the extra force, on the other hand, with a polishing buff with such elasticity, it is difficult to apply the intended force when an expert performs the work. Annoying.

  Therefore, a second object of the present invention is to provide a polishing buff whose elasticity can be adjusted arbitrarily and easily, and a plate member which can be used for the polishing buff.

  Furthermore, in relation to this problem, a third object is to provide a polishing buff that eliminates the need to prepare various buffs and pads having different elasticity, and a plate member that can be used for the polishing buff. And

  Also, since the polishing buff is rotated at high speed by the polisher, if the center of rotation is centered in any layer, it will cause vibration during operation. Don't be. Therefore, even when a polishing buff is formed by laminating a plurality of members, if a method of visually matching the central opening formed in each layer is adopted as before, the alignment becomes difficult. , It takes a lot of time.

  Therefore, a fourth object of the present invention is to provide a member and a method capable of easily and surely aligning the rotation centers of each member even when a polishing buff is formed by laminating a plurality of members. To do.

  In order to solve the above-mentioned problems, the present invention uses a plate member having a predetermined elasticity, and is a polishing buff whose overall elasticity can be arbitrarily changed by installing or removing the plate member. It is.

  That is, the polishing buff according to the present invention is a polishing buff that is detachably attached to a mounting pad fixed to the rotating shaft of the polishing tool and rotates together with the rotating shaft of the polishing tool. The buff has a polishing member having an end surface in the axial direction in the rotation direction as a polishing surface and an engaging surface in which the other end surface is detachably attached to a member to be engaged, and has elasticity and both end surfaces in the axial direction. A cushion member that is an engagement surface that is detachably engaged with an engagement target member, and an engagement surface that is detachably engaged with the engagement target member at both axial end surfaces, and a mounting pad and a cushion member And one or two or more plate members that can be disposed at least at any part between the cushion member and the polishing member.

  In the polishing buff, a plate member is detachably interposed between the polishing member and the cushion member, or the plate member is detachably installed on the surface of the cushion member opposite to the surface to which the polishing member is attached. The bending elastic modulus of the entire polishing buff is changed by attaching or removing the plate member. Therefore, it is desirable that the plate member used for the polishing buff has a bending elastic modulus to such an extent that the effect can be obtained. Specifically, by installing the plate member, the polishing buff A material that can change the overall flexural modulus to 1.5 times or more, desirably 5 times or more, more desirably 10 times or more, and particularly desirably 20 times or more is preferably used. The bending elastic modulus of the entire polishing buff can be measured by a method according to the method of measuring the bending elastic modulus specified in ISO 178. More specifically, the two polishing polishings differ only in the presence or absence of a plate member. Test pieces of the same size (including the polishing buff itself) are prepared from the buffs for the test, and the strength associated with the displacement of the center indenter is measured for this test piece, and a linear relationship between displacement and strength is established. It can measure as an elastic modulus calculated | required in the area | region to do.

  The plate member should be formed to have a bending elastic modulus of 0.5 times or more, preferably 5 times or more, more preferably 10 times or more, particularly preferably 20 times or more of the bending elastic modulus of the cushion member. Is desirable.

  For example, this plate member can be constituted by a resin-made circular plate body and a hook-and-loop fastener bonded to the upper and lower surfaces thereof. With such a plate member, the circular plate body conforms to JIS K 7215. Using a resin having a measured hardness (Shore D) of 30 to 80, more preferably 40 to 75, particularly preferably about 45 to 70, a thickness of 0.5 mm to 10 mm, further 0.5 mm to 5 mm, particularly 0.5 mm to It can be formed to about 2 mm.

  Furthermore, since this plate member is installed exclusively for the purpose of changing the elasticity against bending of the entire polishing buff, in consideration of workability during polishing, 0.5 mm to 10 mm, and more preferably 0. It is desirable that the thickness is 5 mm to 6 mm, particularly 0.5 mm to 4 mm.

  The plate member is formed so as to be disposed between the cushion member and the polishing member, and the size of the plate member is preferably smaller than the end surface on the polishing member side of the cushion member. More specifically, it is desirable that the cushion member is formed with a diameter that is smaller by 1 mm to 20 mm, further 1 mm to 10 mm, particularly 2 mm to 8 mm, than the end surface on the polishing member side. If the diameter is made smaller than 20 mm beyond the end surface on the polishing member side, a step is formed between the surface of the cushion member and the polishing force is concentrated on the corner of the step, resulting in polishing on the object to be polished. This is because there is a risk of causing a mark.

  Further, when the plate member is disposed between the cushion member and the polishing member, it is desirable that the polishing member be formed in a size that covers the side surface of the plate member. This is for avoiding a situation in which the plate member is exposed during the operation and the object to be polished is scratched.

  The engaging surfaces formed on each of the polishing member, the cushion member, and the plate member that constitute the polishing buff may be any member that detachably attaches the overlapping members to each other. Various things such as fasteners, re-adhesive adhesives or pressure-sensitive adhesives can be used. Among these, when using a hook-and-loop fastener, any of them may be a male surface (hook surface) or a female surface (loop surface) as long as the surfaces facing each other can be engaged with each other. As the types of the hook-and-loop fastener, for example, various types such as Velcro (registered trademark), Free Magic (registered trademark), Magilock (registered trademark), Magic Hard (registered trademark), Multi-lock (registered trademark), etc. A hook-and-loop fastener can be used. Velcro (registered trademark) is a hook-and-loop fastener that engages a hook surface having a number of minute hook-shaped hooks and a loop surface having a number of minute loops, and includes a male surface (hook surface) and a female surface (loop). Used in combination. On the other hand, if it is Free Magic (registered trademark) that combines the hook surface and the loop surface on the same surface, or Multilock (registered trademark) that is engaged by a number of minute mushroom-shaped protrusions, etc., Velcro (registered trademark) ), It is not necessary to distinguish between the hook surface (male surface) and the loop surface (female surface).

  The polishing buffing member according to the present invention can be used by being detachably attached to a mounting pad fixed to the rotating shaft of the polishing tool. There is also provided a polishing apparatus formed by attaching a polishing buff according to the present invention. The polishing tool constituting the polishing apparatus includes a mounting pad fixed to the rotating shaft as described above, and the polishing buff member is detachably attached to the mounting pad with a hook-and-loop fastener or the like. As such mounting pads, conventionally, there are provided a hard mounting pad having a hardness that does not cause elastic deformation during polishing work, and a soft mounting pad that is flexible enough to perform elastic deformation during polishing work. However, in the present invention, a soft mounting pad is preferably used.

  Further, in the present invention, in order to further solve the above-described problem, the plate member is used for a polishing buff attached to a mounting pad fixed to a rotating shaft of a polishing tool, and is provided at any part of the polishing buff. Provided is a plate member used for a polishing buff, characterized in that it has a detachable engaging surface and changes the bending elastic modulus of the polishing buff in a state of being installed on the polishing buff. .

  This plate member is also used to change the elasticity against the bending of the polishing buff like the plate member constituting the polishing buff. Therefore, this plate member is used for the polishing buff to which it is attached. It is desirable to form as what has a larger bending elastic modulus.

  In the present invention, since a plate member having an appropriate bending elastic modulus is used, a polishing buff capable of arbitrarily adjusting the elasticity is provided according to the experience of the operator, and is inexperienced. The worker removes the plate member to increase the elasticity of the entire buff (to reduce the elastic modulus), and the skilled worker reduces the elasticity of the entire puff so that it can be polished with the intended force (elastic modulus) The plate member can be installed and used.

  Therefore, according to the present invention, a polishing method for polishing the surface of an object to be polished with a rotary polishing tool to which a polishing buff is attached, the polishing method including a step of adjusting an elastic modulus of the polishing buff, Adjustment of the elastic modulus of the polishing buff is performed by attaching or removing a detachable plate member to the polishing buff.

  Furthermore, in the present invention, as described above, a polishing buff is provided in which at least the polishing member and the cushion member are detachably formed. Therefore, the rotation centers of the two members are made to coincide with each other. Provided is a method for attaching a polishing buff that can be easily and reliably performed.

  That is, a method for attaching a polishing buff to a mounting pad fixed to a rotating shaft of a polishing tool, wherein the polishing buff has one axial end surface in the rotating direction of the rotating shaft as a polishing surface and the other end surface to be engaged. An engaging surface that is detachably attached to the member, a polishing member having a through-hole formed at the center of rotation thereof, and an elastic member that is elastic and has both end surfaces in the axial direction detachable from the engagement target member. And a cushioning member having a through-hole formed at the center of rotation thereof, and the step of installing the polishing buff with respect to the mounting pad includes the step of aligning the polishing member and the cushioning member. The positioning step includes aligning the centers of both members with through holes formed in each of the polishing member and the cushion member through a fitting having substantially the same diameter as the through hole. A mounting method.

  According to this method, both members can be easily obtained simply by passing a fixture formed in a cylindrical shape or a column shape having the same diameter as the through hole through the through hole formed at the rotation center of the polishing member and the cushion member. The rotation center can be matched. This attachment tool may be pulled out after joining the polishing member and the cushion member, or may be pulled out after attaching the polishing buff formed by joining to the attachment pad of the polishing tool.

  In this attachment method, the polishing buff is further provided with an engaging surface that is detachable from the engagement target member at both axial end surfaces of the rotating shaft, and between the attachment pad and the cushion member and between the cushion member and the polishing member. It can be carried out even when it is configured to include a plate member that can be arranged at least at any part between them and further has a through-hole formed at the center of rotation thereof. In the alignment step, the centers of all the members can be made to coincide with the through holes formed in each of the polishing member, the plate member, and the cushion member through a fixture having substantially the same diameter as the through hole.

  Therefore, in the present invention, as a mounting tool for carrying out the above mounting method, it is a mounting tool used when mounting a polishing buff to a mounting pad fixed to a rotating shaft of a polishing tool, and is attached to and detached from each other. Provided is a polishing buff fixture having an outer diameter substantially the same diameter as a through hole formed at the center of rotation of a polishing buff comprising a plurality of members that are freely combined in layers.

  Such a fixture can be formed regardless of the material in particular, and can be formed using a resin in addition to a metal. In addition, the shape is at least toward one end in the axial direction, and has a shape (columnar or cylindrical shape, etc.) having the same diameter as the through-hole of each member constituting the polishing tool, or the same diameter as the through-hole. It is desirable to form such that it has a shape (such as a truncated cone shape) constricted from the formed region toward one end in the axial direction.

  According to the present invention, a polishing buff whose elastic coefficient can be arbitrarily changed and a plate member used for the polishing buff are provided, so that even an inexperienced operator can polish the painted surface well. Further, a polishing buff that can be easily handled is provided. Further, since the elasticity (ie, softness) of the buff can be adjusted simply by attaching and detaching the plate member, the elasticity can be adjusted arbitrarily and easily, and various buffs and pads having different elasticity can be adjusted. And a plate member that can be used for the polishing buff are provided.

  And, even if it is a polishing buff made of a plurality of members combined in layers so as to be detachable from each other as in the present invention, by passing the fixture through the through hole provided at the center of rotation, The rotation center of each member can be matched easily and reliably.

  Hereinafter, the polishing buff 1, the plate member 20, the fixture 50, and the method of using the same will be described in detail with reference to the drawings.

  FIG. 1 is an exploded view of the polishing buff 1 according to the present embodiment, FIG. 2 is an axial sectional view of the polishing buff 1, and FIG. 3 is a diagram illustrating how the polishing buff 1 is attached to a polishing tool. FIG. 4 is a schematic view showing the polishing surface 11 of the polishing buff 1 during the polishing operation with and without the plate member 20, and FIG. 5 is a ratio of the bending elastic modulus of the buff with and without the plate member 20. It is the schematic which shows how to obtain | require.

  First, a configuration of the polishing buff 1 according to the present embodiment and a method for using the same will be described with reference to FIGS. The polishing buff 1 shown in this embodiment is formed by laminating a polishing member 10, a plate member 20, and a cushion member 30 in this order as shown in FIG. The polishing surface 11 formed in the same manner as the polishing surface 11 of a conventional buff member (wool buff, sponge buff, etc.) is formed on the surface on which the object M is polished, and the polishing member 10 is related to the back surface thereof. A hook-and-loop surface 12 is formed by attaching a hook-and-loop fastener f that is detachably attached to a plate member 20 to be attached (member to be engaged).

  Further, the plate member 20 has a surface fastener f to be bonded to the engaging surface of the polishing member 10 attached to the surface on the polishing member 10 side, and the plate member 20 attached to the back side (surface on the cushion member 30 side). A hook-and-loop fastener f that can be bonded to the hook-and-loop fastener f provided on the engaging surface of the cushion member 30 to be joined or engaged is provided. The surface fastener of the mounting pad 40 installed on the rotating shaft of the polishing tool 60 is provided on the surface of the cushion member 30 to which the plate member 20 is joined or engaged, on the opposite side to the plate member 20 is installed. A hook-and-loop fastener f that can be joined or engaged with f is provided.

  Each member configured as described above is detachably formed by a hook-and-loop fastener f, and in this configuration, even when the plate member 20 is removed, the engaging surface of the polishing member 10 is a cushion. It is formed so that it can be joined or engaged with the engaging surface of the member 30. Therefore, in the polishing buff 1 formed in this way, the elasticity, that is, the softness in the polishing buff 1 can be arbitrarily adjusted by simply using or removing the plate member 20, and therefore, Depending on the skill level of the operator and the material of the object to be polished, the polishing buff 1 having the optimum hardness (or softness) can be obtained. Further, by adjusting the number of installed plate members, it is possible to obtain a polishing buff having an optimum hardness. That is, it is an embodiment in which two or more plate members are arbitrarily combined. Each plate member used in that case can also have a mutually different bending elastic modulus.

The size of each member is as follows so as not to cause polishing marks even when the polishing buff 1 in which the plate member 20 is interposed between the polishing member 10 and the cushion member 30 is used. It is formed with two requirements.
(1) The size of the plate member 20 is the same as the engaging surface of the cushion member 30 on the plate member 20 side, or is formed to have a size existing about 1 mm to 5 mm inside the outer edge.
(2) The polishing member 10 is formed in a size that can cover the side surface of the plate member 20 that is bonded or engaged with the cushion member 30.

  In particular, by satisfying the requirement (1) above, it is possible to eliminate the adverse effects caused by the concentration of force on the step generated on the contact surface with the object to be polished M such as the body panel, and the requirement (2) is provided. This eliminates the possibility of scratching the polishing object M at the periphery of the plate member 20.

  As shown in FIGS. 6A and 6B, the plate member 20 used in the present embodiment is made of resin on the upper and lower surfaces of a plastic circular plate 21 having a thickness of about 1 mm. It is formed by joining a manufactured surface fastener F with an adhesive 22. 6A is an exploded perspective view of the plate member 20, and FIG. 6B is a sectional view in the thickness direction. In manufacturing the plate member, the circular plate 21 is formed using a plastic material having a Shore hardness of 42D measured according to JIS K 7215.

  In addition, as shown in FIG. 5, the ratio of the flexural modulus of the entire buff with and without the polishing buff 1 holds the buffs that differ only in the presence or absence of the plate member 20 at a constant interval (preferably about 12 cm). It can be calculated by comparing the force applied to show a certain displacement (force in the direction of gravity). That is, the force applied to the displacement of the polishing buff 1 member with the plate member 20 disposed by A is X, while the polishing buff 1 member without the plate member 20 is also displaced by A. Assuming that the force applied to Y is Y, it is possible to use a plate member 20 having such flexibility that the relational expression “X = aY (a = 1.5 or more)” is satisfied.

  The adjustment of the flexibility (bending elasticity) of the plate member is not limited by adjusting the material and thickness of the plate, such as plastic or metal, which constitutes the core material (plate body 21) of the plate member, and engaging the hook and loop fastener. It can also adjust by the hardness (hardness of the hardened | cured adhesive) of the adhesive agent when attaching a member (desirably sticking). When adjusting the flexibility (bending elasticity) of the plate member with an adhesive, an optimum adhesive is selected in consideration of the hardness at the time of curing.

  In addition, as the cushion member 30 in the present embodiment, one having elasticity equivalent to that of a commercially available buff can be used.

  The polishing buff 1 according to the present embodiment is formed by laminating a plurality of members as described above, and in actual use, each member has a high-speed rotation so that stable high-speed rotation can be performed. It is necessary to match the center of rotation.

  Therefore, in this embodiment, as shown in FIG. 3, a cylindrical fixture 50 having the same outer shape as the through hole H is inserted into the through hole H for heat dissipation formed at the rotation center of each member. The members are joined or engaged with each other, and the rotation centers of the members are easily matched. Thus, the polishing buff 1 in which the rotation centers of the respective members coincide with each other is obtained by engaging the buff with the mounting pad 40 while further arranging the mounting tool 50 coaxially with the rotation axis of the polishing tool 60. Thus, the polishing apparatus 70 does not shake even when rotated at a high speed.

  Further, as the mounting pad 40 to which the polishing buff 1 is attached, one having elasticity is desirably used as appropriate, for example, a pad formed using hard rubber, a pad formed using plastic resin, or the like. Can be used.

  Next, with reference to FIG. 4, the effect and usage method of the polishing buff 1 according to the present embodiment will be specifically described.

  FIG. 4A shows a state in which the surface to be polished is polished by the polishing buff 1 formed to have a certain hardness by interposing the plate member 20, and FIG. A state in which the surface to be polished is polished by the polishing buff 1 that has been removed and formed to have sufficient elasticity is shown. As shown in FIG. 4A, in the polishing buff 1 provided with the plate member 20, only the protruding portion is effectively polished without following the unevenness of the surface to be polished. A smooth surface can be formed. On the other hand, as shown in FIG. 4B, when formed as a soft polishing buff 1 having sufficient elasticity, polishing is performed following the unevenness of the surface to be polished, so that the entire surface is evenly polished. can do.

  In addition, when the surface to be polished is an automobile panel and the polishing work is performed for polishing, it is desirable to uniformly polish the entire painted surface with uniform force. It can be finished beautifully without causing any scratches on the painted surface. That is, even if an inexperienced worker tries to polish such a rough coated surface (surface M to be polished), he / she does not fully know how to adjust the force between the curved surface and the flat surface. In addition, the polisher (polishing tool 60) is pressed. At the same time, the buff with the plate member 20 removed effectively absorbs and disperses the extra force acting on the convex part due to the elasticity of the cushion member 30, so that polishing work does not occur without causing polishing marks. It can be performed. On the other hand, an operator who is well aware of how to adjust the force between the curved surface and the flat surface can efficiently perform the polishing operation by applying the desired force by interposing the plate member 20.

  Therefore, the polishing buff according to the present invention can adjust the hardness of the puff itself arbitrarily and easily according to the work purpose, the skill level of the operator, or the hardness of the material to be polished. A polishing buff that can be used is realized. In addition, when using this polishing buff, it is only necessary to prepare a plate member formed in a flat plate shape, so that it is not necessary to prepare a large number of buffs, and the working space can be effectively used, There is also a cost effect of reducing the preparation cost of the set of tools for polishing work.

Exploded view of polishing buff according to embodiment Axial cross section of polishing buff Schematic showing the state where the polishing buff is attached to the polishing tool Schematic showing the polishing surface of the polishing buff during the polishing operation with and without the plate member Schematic diagram showing how to find the ratio of flexural modulus of buff with and without plate member The plate member is shown, (A) is a disassembled perspective view, (B) is thickness direction sectional drawing.

1 Polishing buff
10 Abrasive material
11 Polished surface
12 Anchoring surface
20 Plate material
21 Plate body
30 Cushion material
40 Mounting pads
50 Fixture
60 Abrasive tools
70 Polishing equipment
H Through hole
M polishing object
f hook and loop fastener

Claims (7)

A polishing buff that is detachably attached to a mounting pad fixed to a rotating shaft of a polishing tool and rotates together with the rotating shaft of the polishing tool.
A polishing member having an end surface in the axial direction in the rotation direction as a polishing surface, and an engagement surface that is detachably engaged with the engagement target member on the other end surface;
A cushion member having elasticity and an engaging surface that is detachably engaged with the engagement target member at both axial end surfaces;
Both end surfaces in the axial direction are engagement surfaces that are detachably engaged with the engagement target member, and are arranged at least in any part between the mounting pad and the cushion member and between the cushion member and the polishing member. A polishing buff formed by using one or two or more plate members.   2. The plate member according to claim 1, wherein the plate member has a thickness of 0.5 mm to 10 mm, and is formed with an elastic modulus that increases the bending elastic modulus of the entire polishing buff by 1.5 times or more by arranging the plate member. The polishing buff described.   The said plate member is formed so that it can be arrange | positioned between a cushion member and a grinding | polishing member, is flat plate shape, Comprising: It is formed in the diameter smaller than the grinding | polishing member side end surface in a cushion member. Polishing buff. The plate member is formed so as to be disposed between the cushion member and the polishing member,
The polishing buff according to claim 1, wherein the polishing member is formed in a size that covers a side surface of the plate member. A plate member used for a polishing buff attached to a mounting pad fixed to a rotating shaft of a polishing tool,
A polishing buff comprising an engaging surface detachably attached to any part of the polishing buff and changing a bending elastic modulus of the polishing buff in a state of being installed on the polishing buff. Plate member used for   The plate member according to claim 5, wherein the plate member has a larger flexural modulus than a polishing buff to which the plate member is attached. An attachment used when attaching a polishing buff to an attachment pad fixed to a rotating shaft of an abrasive tool,
The mounting tool has an outer diameter substantially the same as a through-hole formed at the center of rotation of a polishing buff made of a plurality of members combined in layers so as to be detachable from each other. Fittings.