JP2004122331A - Smooth surface processing chip and smooth surface processing tool using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a smooth surface processing chip capable of finishing and working a metal work surface cut by a cutting machine into a smooth surface by eliminating a polishing machine and a smooth surface processing tool using it. <P>SOLUTION: This smooth surface processing chip A finishes and works an irregular rough surface into the smooth surface by pressing a head end part 1 on the irregular rough surface of the surface of of a metal work and crashing a protruded part by pressing work accompanying this continuous relative movement, the head end part 1 is formed in an angular shape made of two inclined surfaces, at least a first inclined surface 11 positioned on the rake face side out of these two inclined surfaces is formed in a gently inclined surface, and finishing work is carried out while maintaining an angle θ1 made by the first inclined surface 11 and the surface of the metal work W in an acute angular state. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a newly developed smooth surface treatment chip for finishing a rough surface of a metal workpiece cut by a cutting machine into a smooth surface, and a smooth surface treatment tool using the same.
[0002]
[Prior art]
FIG. 7 is a schematic explanatory view showing a polishing method for finishing a rough surface of a metal work, which has been widely practiced conventionally, into a smooth surface, and FIG. 8 is a partial cross-sectional view in which the surface state of the metal work is enlarged. is there.
[0003]
Conventionally, a metal work 100 is cut into a desired shape by a cutting tip 121 fixed to a tip side of a mounting base 111 set on a cutting machine 101, and then the cut metal work 100a is sent to a polishing machine 102. After transferring, setting again, the polishing tool 103 provided in the polishing machine 102 was rotated, and the rough surface of the cut metal work 100a was scraped off to finish the surface into a smooth surface. .
[0004]
As shown in FIG. 7, the polishing processing tool 103 includes a main body 113 and a smooth surface processing chip 123 such as a grindstone fixed to the tip of the main body 113. When the rotating main shaft is rotated while being fixed to the main shaft 112, the smooth surface processing chip 123 is also rotated with the rotation, so that the smooth surface processing chip 123 is pressed against the cutting surface of the metal work 100a to which the smooth surface processing chip 123 is fixed. (See, for example, Patent Document 1).
[0005]
The surface of the metal workpiece 100a thus cut is in a so-called rough finish state as shown in FIG. 8, and when this uneven surface is microscopically observed, many uneven portions 110 are formed. In addition, the smooth surface processing chip 123 of the polishing processing tool 103 is pressed against the concave-convex portion 110 so that the convex portion is shaved and polished, and the surface is finished to a substantially smooth surface.
[0006]
[Patent Document 1]
JP-A-2002-79440 (FIG. 1)
[Problems to be solved by the invention]
However, in the conventional polishing processing chip 123, the surface of the uneven portion 110 is ground and polished with a grindstone or the like, and the rough surface of the unevenness is finished to a smooth surface. There was a problem that dust was easily generated.
[0007]
Further, there is also a danger that polishing powder is generated from the polishing processing chip 123 using a grindstone, and the polishing powder enters the sliding surface of the machine and the like, and promotes abrasion of the machine, thereby adversely affecting the accuracy.
[0008]
Further, since the polishing processing chip 123 is provided in the polishing processing tool 103 of the polishing machine 102, the cut metal work 100a is detached from the cutting machine 101 and transferred to the polishing machine 102, and the polishing machine 102 The metal work 100a has to be polished, and it takes time and effort to move the cut metal work 100a to the polishing machine 102 one by one, so that there is a problem that the operation time is increased and the operation cost is increased.
[0009]
In addition, when transferring the cut metal work 100a to the polishing machine 102, it is necessary to newly hold the metal work 100a on the polishing machine 102, and at this time, the core of the metal work 100a is likely to be blurred, and the quality of the product is high. There was also a problem that was not stable.
[0010]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and can prevent the generation of shavings and the like of a metal work, shorten the work time for finishing a smooth surface, and stabilize quality. And a smoothing tool using the same.
[0011]
[Means for Solving the Problems]
To achieve the above objectives,
The smooth surface treatment chip according to claim 1, wherein the tip portion is pressed against the rough surface of the metal work surface, and the convex portion is crushed by the pressing action accompanying the continuous relative movement to finish the rough surface as a smooth surface. A smooth surface processing chip for processing, wherein the tip portion is formed in a mountain shape composed of two inclined surfaces, and among these two inclined surfaces, at least a first inclined surface located on the rake surface side is: It is formed on a gentle slope, and is attached while maintaining an angle formed by the first slope and the surface of the metal work at an acute angle.
[0012]
In this device, at least the first inclined surface located on the rake surface side among the two inclined surfaces formed in the mountain shape is formed as a gentle inclined surface, and the first inclined surface and the surface of the metal work are formed. The above-mentioned finishing is performed while maintaining the angle formed by (1) and (2) at an acute angle.
[0013]
Here, the acute angle state means that the above-mentioned `` rake angle '' is maintained at an angle in the negative direction, as opposed to the `` rake angle '' in the conventional cutting insert maintained at a positive angle. Means
[0014]
As described above, since the “rake angle” is maintained at a negative angle, the tip of the first inclined surface does not cut the surface of the metal work.
[0015]
Therefore, if the front end of the first inclined surface is pressed against the rough surface of the metal work surface, the protrusion is crushed without being cut, thereby preventing the generation of shavings of the metal work. Thus, the surface can be finished to a substantially smooth surface.
[0016]
In addition, if the smooth surface treatment chip is attached to the tool holder of the cutting machine, a polishing machine is not required, the operation time for finishing the smooth surface can be shortened, and the quality can be stabilized.
[0017]
In the smooth surface treatment chip according to claim 2, in claim 1, among the inclined surfaces at the tip end, the second inclined surface inclined toward the relief surface side opposite to the first inclined surface is also gentle. It is formed on an inclined surface.
[0018]
In this case, since the second inclined surface is also formed as a gentle inclined surface, the overall strength, particularly the strength around the tip, is increased, and the strength against the pressing force when the tip is pressed against the metal work surface is increased. Damage such as cracking and breakage can be reduced.
[0019]
According to a third aspect of the present invention, in the smooth surface treatment chip according to any one of the first and second aspects, the angle between the first inclined surface and the surface of the metal workpiece is maintained in a range of 3 ° to 10 °. It is formed as follows.
[0020]
In this device, the angle formed by the first inclined surface and the surface of the metal work is numerically limited. If the angle is within this range, it is necessary to prevent cutting of the metal work and apply a load to crush the convex portion. It is possible to suitably balance with the load to be applied.
[0021]
According to a fourth aspect of the present invention, in the smooth surface processing chip according to any one of the first to third aspects, the first inclined surface and the second inclined surface are formed as line-symmetric inclined surfaces centered on the apex of the tip end. ing.
[0022]
In this case, the overall strength of the smooth surface treatment chip is well balanced, and the first inclined surface and the second inclined surface can be used in an inverted manner.
[0023]
In the smooth surface treatment chip according to claim 5, in any one of claims 1 to 4, an inclined surface having a larger inclination angle than the first inclined surface is coupled to a foot portion of the first inclined surface. I have.
[0024]
In this case, by connecting an inclined surface having a large inclination angle to the foot of the first inclined surface, it is possible to prevent a portion other than the first inclined surface from accidentally hitting the metal work.
[0025]
The smooth surface treatment tool according to claim 6 presses the tip of the smooth surface treatment chip against the rough surface of the metal work, and crushes the convex portion by the pressing action accompanying the continuous relative movement to reduce the uneven surface. A smooth surface treatment tool for finishing a smooth surface, wherein a tip portion of the smooth surface treatment chip is formed in a mountain shape having two inclined surfaces, and of the two inclined surfaces, at least a first inclined surface on a rake surface side. The surface is a gently inclined surface, and the smooth surface treatment chip is fixed to the distal end side of the mounting base so that the first inclined surface maintains an acute angle with respect to the surface of the metal work, and the surface of the mounting base is The base end is detachably attached to a tool holder of a cutting machine.
[0026]
In this device, since the mounting base, on which the smooth surface processing chip is fixed on the tip side, is detachably attached to the tool holder of the cutting machine, a polishing machine is not required, and the working time for finishing the smooth surface is reduced. In addition to shortening, the quality can be stabilized.
[0027]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a smooth surface treatment chip for a metal work and a smooth surface treatment tool using the same according to the present invention will be described with reference to the drawings.
[0028]
FIG. 1 is a schematic perspective view showing a use state of the smooth surface treatment chip according to the present invention, and FIG. 2 is a schematic sectional view showing a use state of the smooth surface treatment chip according to the present invention.
[0029]
It should be noted that the smooth surface treatment chip shown in this embodiment is merely an example, and the shape, material, and the like are not limited to these.
[0030]
This smooth surface processing chip A fixes a metal work W to a chuck portion S1 of a cutting machine S, cuts the metal work W into a desired shape with a cutting tool (not shown), and then fixes the metal work W to a chuck. The tip 1 is pressed against the rough surface to be rotated while being attached to the portion S1, and the convex portion of the rough surface is crushed by a pressing action accompanying the continuous rotation to finish the surface into a smooth surface. It is.
[0031]
In addition, as shown in FIG. 2, the smooth surface processing chip A can be used for any of the inner diameter surface and the outer diameter surface of the metal work W, and can finish these into a smooth surface.
[0032]
FIG. 3 is a partially enlarged view showing a main part of the smooth surface treatment chip according to the present invention.
[0033]
The tip 1 of the smooth surface treatment chip A is formed in a mountain shape composed of two inclined surfaces, and the rake face side of the metal work W rotating in the direction indicated by the arrow in the drawing among the two inclined surfaces. Is formed to be a gentle inclined surface.
[0034]
Here, the gentle slope means that the angle θ1 formed by the first slope 11 and the surface of the metal work W is maintained in an acute angle state. It is desirable to maintain the angle in the range of ° to 10 °.
[0035]
As described above, in the smooth surface treatment chip A of the present invention, since the angle θ1 is maintained at an acute angle, the surface of the metal work W is not cut.
[0036]
Therefore, if the tip 1 on the side of the first inclined surface 11 is pressed against the rough surface of the surface of the metal work W, the protrusion is crushed without being cut, so that the generation of shavings of the metal work W is ensured. The surface of the metal workpiece W can be finished to a substantially smooth surface while preventing the above problem.
[0037]
At the foot of the first inclined surface 11, another inclined surface 13 having a larger inclination angle than the first inclined surface 11 is further coupled.
[0038]
By coupling such other inclined surfaces 13, for example, depending on the shape of the metal work W, a portion other than the first inclined surface 11 may hit. Hit can be prevented.
[0039]
On the other hand, on the side of the relief surface formed in the opposite direction to the first inclined surface 11, a second inclined surface 12 gently inclined similar to the first inclined surface 11 is formed.
[0040]
The gently inclined second inclined surface 12 means that the angle θ2 formed by the second inclined surface 12 and the surface of the metal work W is maintained in an acute angle state, but preferably, It is desirable to maintain the angle θ1 in the range of 3 ° to 10 °.
[0041]
By forming the second inclined surface 12 as a gentle inclined surface in this way, the overall strength of the smooth surface treatment chip A, particularly the strength around the distal end portion 1, is increased, and damages such as cracks and breakage can be reduced.
[0042]
In this embodiment, the first inclined surface 11 and the second inclined surface 12 are formed on inclined surfaces that are line-symmetric with respect to the apex of the tip 1, respectively. Not only is well balanced, but also the first inclined surface 11 and the second inclined surface 12 can be used in an inverted manner.
[0043]
FIGS. 4A and 4B are partially enlarged views schematically showing a procedure for finishing a surface of a metal work into a smooth surface by the smooth surface treatment chip according to the present invention.
[0044]
As before, the surface of the metal work W cut by the cutting machine is in a so-called roughened state, and the surface is finished to be a rough surface with irregularities. , A concave portion W1 and a convex portion W2 are continuously present.
[0045]
By pressing the distal end portion 1 of the smooth surface treatment chip A according to the present invention against the concave portion W1 and the convex portion W2, the convex portion W2 is extended while being crushed, and the surface thereof is finished to be substantially flush.
[0046]
Therefore, while exerting the above-mentioned effects, it is possible to perform finish processing to a state in which the surface is smoothed to be equal to or more than that of the conventional polishing.
[0047]
FIG. 5 is a partial perspective view showing an example of the smooth surface treatment tool to which the smooth surface treatment chip according to the present invention can be attached.
[0048]
Parts common to FIGS. 1 to 4 are denoted by the same reference numerals, and description thereof is omitted.
[0049]
This smooth surface treatment tool B is provided on the distal end surface of the mounting base 3 so as to fix the distal end portion 1 of the smooth surface processing chip A so as to maintain an acute angle with respect to the surface of the metal work W as in FIG. A recess 31 into which a part of the smooth surface treatment chip A is fitted is formed, and a female screw hole 32 for mounting is formed in the center of the axis of the mounting base 3.
[0050]
On the other hand, the through-hole 4 is formed in the smooth surface treatment chip A at a position corresponding to the female screw hole 32 for attachment.
[0051]
Then, after the smooth surface treatment chip A is fitted into the recess 31, the fixing bolt 5 is inserted into the through hole 4 and screwed into the female screw hole 32 for mounting. Is fixed.
[0052]
A guide surface 34 that is flat in the longitudinal direction is formed on the outer surface on the base end side of the mounting base 3, and the guide surface 34 is attached to the tool holder S <b> 2 of the cutting machine S corresponding to the guide surface 34. A screw S3 is provided.
[0053]
That is, with the tightening of the mounting screw S3, the distal end surface of the mounting screw S3 presses the guide surface 34, so that the mounting base 3 is attached to the tool holder S2 so that it cannot rotate and cannot be pulled out.
[0054]
The mounting base 3 can be detachably attached to the tool holder S2 of the cutting machine S by forming the mounting base 3 into the same material and shape as the base of the conventional cutting tool.
[0055]
It is desirable that the angle adjustment of the distal end portion 1 of the smooth surface treatment chip A be finally confirmed using a gauge or the like.
[0056]
The mounting base 3 is formed with an oil passage 33 penetrating from the base end to the distal end of the mounting base 3, from the distal end of the oil passage 33 toward the distal end 1 of the smooth surface treatment chip A. Since the polishing oil can be discharged, the polishing oil can flow toward the front end 1 of the smooth processing tip A during the smooth surface processing, and the frictional heat between the metal work W and the front end 1 can be reduced. Etc. can be suppressed.
[0057]
According to the smooth surface treatment tool B according to the present invention, since it is detachable from the tool holder portion S2 of the cutting machine S, it is not necessary to use a polishing machine as in the related art.
[0058]
Therefore, it is not necessary to move the metal work W to the polishing machine one by one, and the working time can be shortened, and the cost can be significantly reduced.
[0059]
Further, since the smooth surface processing chip A can be used while holding the cut metal work W, the center deviation of the metal work W can be prevented, and the quality can be improved.
[0060]
FIG. 6 is a partial perspective view showing another embodiment of the smooth surface treatment tool to which the smooth surface treatment chip according to the present invention can be attached.
[0061]
Parts corresponding to the parts indicated by the numbers in FIGS. 1 to 5 are denoted by the same reference numerals, and description thereof will be omitted.
[0062]
This smooth surface processing tool C does not press the front end portion 1 of the smooth surface processing chip A described above, but presses one side 10 of the smooth surface processing chip A ′ formed in a rhombus shape to the surface of the metal work W. It is fixed.
[0063]
In the smooth surface treatment chip A ′ used for the smooth surface treatment tool C of such an embodiment, the vertical cross-sectional shape of one side 10 pressed against the metal work W may be formed in the same manner as the above-described distal end portion 1.
[0064]
That is, as shown in an enlarged vertical cross-sectional view of a main part in FIG. 6, a vertical cross-sectional end of one side 10 is formed in a mountain shape composed of two inclined surfaces, and at least a rake surface of these two inclined surfaces. The first inclined surface 11 is formed on the side, and the second inclined surface 12 is formed on the relief surface side.
[0065]
It is a matter of course that the same effect as described above can be obtained even with such a smooth surface treatment tool C or smooth surface treatment chip A ′.
In addition, although the smooth surface treatment chip A shown in the present embodiment is a fixed side and the metal work W is rotated, the one in which the relationship between the two is exchanged, that is, the smooth surface treatment chip A is rotated. However, even if the metal work W is fixed, the same applies to the above.
[0066]
【The invention's effect】
According to the present invention, the following effects can be obtained.
[0067]
According to the smooth surface treatment chip according to claim 1, if the tip on the first inclined surface side is pressed against the rough surface of the metal workpiece surface, the projection is crushed without being cut, The surface of the metal work can be finished to a substantially smooth surface while preventing the generation of shavings.
[0068]
In addition, if the smooth surface treatment chip is attached to the tool holder of the cutting machine, a polishing machine is not required, the operation time for finishing the smooth surface can be shortened, and the quality can be stabilized.
[0069]
According to the smooth surface treatment chip according to the second aspect, since the second inclined surface is also formed as a gentle inclined surface, the overall strength, particularly the strength around the front end, is increased, and the front end is pressed against the surface of the metal work. The strength against the pressing force at the time is increased, and damages such as cracks and breakage can be reduced.
[0070]
According to the smooth surface treatment chip according to claim 3, the angle formed by the first inclined surface and the surface of the metal work is numerically limited. The balance with the load applied to crush the protruding portion can be made favorable.
[0071]
According to the smooth surface treatment chip of the fourth aspect, the overall strength of the smooth surface treatment chip is well balanced, and the first inclined surface and the second inclined surface can be used in an inverted manner.
[0072]
According to the smooth surface treatment chip according to the fifth aspect, by connecting the inclined surface having a large inclination angle to the foot of the first inclined surface, a portion other than the first inclined surface accidentally hits the metal work. Can be prevented.
[0073]
According to the smooth surface treatment tool according to claim 6, since the mounting base portion to which the smooth surface treatment chip is fixed to the distal end side is made detachable to the tool holder portion of the cutting machine, a polishing machine is not required, The working time for finishing the smooth surface can be reduced, and the quality can be stabilized.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing a use state of a smooth surface treatment chip according to the present invention. FIG. 2 is a schematic sectional view showing a use state of a smooth surface treatment chip according to the present invention. FIG. FIGS. 4 (a) and 4 (b) are partially enlarged views schematically showing a procedure for finishing a surface of a metal work into a smooth surface by the smooth surface treatment chip according to the present invention. FIGS. FIG. 5 is a partial perspective view showing an example of a smooth surface treatment tool to which the smooth surface treatment chip according to the present invention can be attached. FIG. 6 is a partial portion showing another embodiment of the smooth surface treatment chip according to the present invention. Enlarged view [Fig. 7] Schematic explanatory view showing a polishing method for finishing a rough surface of a metal work, which has been widely practiced conventionally, into a smooth surface [Fig. 8] Surface state of the metal work before and after polishing by a polishing machine Enlarged partial cross-section [Explanation of symbols]
W Metal work A, A 'Smooth surface treatment chip B, C Smooth surface treatment tool S Cutting machine S1 Tool holder 1 Tip 11 First inclined surface 12 Second inclined surface 13 Inclined surface θ1, θ2 Angle

Claims (6)

A smooth surface treatment chip for pressing a tip portion against an uneven rough surface of a metal work surface and crushing a convex portion to finish the uneven rough surface into a smooth surface by a pressing action accompanying this continuous relative movement. ,
The tip portion is formed in a mountain shape composed of two inclined surfaces, and at least a first inclined surface located on the rake surface side of the two inclined surfaces is formed as a gentle inclined surface. A smooth surface treatment chip, which is attached while maintaining an angle formed between the surface and the metal work surface at an acute angle. In claim 1,
A smooth surface treatment chip in which, among the inclined surfaces at the distal end portion, a second inclined surface inclined to a relief surface side opposite to the first inclined surface is also formed as a gentle inclined surface. In any of claims 1 or 2,
A smooth surface treatment chip wherein the first inclined surface is formed such that an angle formed between the first inclined surface and the surface of the metal work is maintained in a range of 3 ° to 10 °. In any one of claims 1 to 3,
The smooth surface processing chip, wherein the first inclined surface and the second inclined surface are formed as line-symmetric inclined surfaces centering on the apex of the tip. In any one of claims 1 to 4,
A smooth surface treatment chip in which a slope having a larger inclination angle than the first slope is coupled to a foot of the first slope. By pressing the tip of the smooth surface treatment chip against the rough surface of the metal work and by this pressing action accompanying continuous relative movement, a smooth surface treatment tool for crushing the convex portion and finishing the rough surface with the uneven surface to a smooth surface. So,
The tip of the smooth surface processing chip is formed in a mountain shape composed of two inclined surfaces, and at least the first inclined surface on the rake surface side is a gentle inclined surface among the two inclined surfaces. Is fixed to the tip side of the mounting base so that this first inclined surface maintains an acute angle with respect to the surface of the metal work,
A smooth surface treatment tool wherein a base end side of the mounting base is detachably mounted to a tool holder of a cutting machine.

Images