KR20160082208A - 3-axis CNC milling slopes shape processing method - Google Patents

Abstract

The present invention relates to a method of machining an inclined surface using a three-axis CNC milling. In the case of machining a hole using a three-axis CNC milling on an inclined surface of a workpiece, a machining positioning groove It is an object of the present invention to provide a hole that can be formed first and then to be machined to facilitate machining of the hole. In order to achieve the above object, according to the present invention, there is provided a method of vertically forming a hole shape on an inclined surface of a workpiece using three-axis CNC milling, the method comprising the steps of: (a) Forming a positioning groove at a predetermined depth; (b) inserting the drill bit of the three-axis CNC milling in the up-and-down direction on the machining positioning groove on the inclined surface formed in the step (a); (c) a drill bit inserted vertically and vertically into the machining position determining groove through a process of step (b) is rotated in the lower side direction of the inclined plane, while the outer circumferential face of the lower side of the drill bit is inclined to the inclined plane Rotating in a vertical direction with respect to the slope so as to be in contact with the lower longitudinal section line located on the lower side; (d) moving the drill bit inserted in the machining position determining groove perpendicularly to the inclined surface of the workpiece in the depth direction of the machining position determining groove through the process of step (c) Positioning the inner surface so that it is in contact; And (e) machining a hole having a desired depth by operating a drill bit of the three-axis CNC milling positioned right on the machining position determining groove through the step (d).

Description

[0001] The present invention relates to a three-axis CNC milling slope shape processing method,

The present invention relates to a three-axis CNC milling method, and more particularly, to a three-axis CNC milling method capable of machining a hole or the like on an inclined surface of a workpiece using three-axis CNC milling The present invention relates to a method of machining an inclined surface hole.

In general, it is mechanical technology or mechanical engineering that changes the shape of a material by means of a machine to make it easier for us to use it in our everyday lives, or carving out a useless part into a product.

And, as described above, the machines used in machine tools are called machine tools. Such machine tools are so important that they represent the machinery industry, and the quality and quantity of machine tools is a measure of national industrial skill level.

The above-mentioned mechanical work can be divided into a cutting process in which a chip (chip) comes out and a non-cutting process in which only a shape is changed without removing a chip when a workpiece is shaved. Milling machines, lathe and grinding machines are among the cutting processes.

On the other hand, CNC milling is a process of machining machine parts. It cuts the inner and outer shapes of stainless steel, aluminum and aluminum materials into various shapes and cuts them into holes (holes), tabs (screw holes) Holes) and so on, so that the shape of the processed parts is bulky.

A milling machine refers to a machine tool that cuts a workpiece on a table with cutting depth and feed while a tool called a milling cutter is fixed on a spindle. That is, the cutting tool fixed to the main shaft rotates, and the work fixed on the table is processed while moving linearly in the forward, backward, left, right, and up and down directions.

In the milling machine described above, planes, grooves and inclined surfaces are mainly processed. Irregular and complicated surfaces, drill grooves and gear teeth can also be machined. If you use a milling cutter or an accessory, you can process even more complicated shapes.

In addition, CNC stands for Compter Numerical Control and refers to an NC (Receiver Control Unit) with a built-in Compter. That is, a control program that automatically creates a command tape (NC program) by punching information on the shape and processing conditions of the workpiece, reads the information from the information processing circuit, generates a command pulse to drive the servo mechanism, Method.

On the other hand, the conventional three-axis CNC milling using CNC has a problem in that it is only possible to process vertical holes when machining a hole or the like in the work. Therefore, when forming a hole or the like on the inclined surface of the workpiece by using the three-axis CNC milling, it is necessary to support the workpiece through a separate pedestal so that the inclined surface of the workpiece is formed into a horizontal surface.

Further, in the case of using a special holder such as a universal joint holder, the conventional three-axis CNC milling has a problem that only the horizontal surface can be drilled, so that a shape such as a hole is formed on the inclined surface of the workpiece , A tapered hole was machined using a 5-axis CNC.

1. Korean Registered Patent Publication No. 10-1286748 (issued on July 17, 2013) 2. Korean Patent Publication No. 2011-0135383 (Dec. 16, 2011) 3. KOKAI Publication No. 1998-081119 (published November 25, 1998)

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve all the problems of the prior art, and it is an object of the present invention to provide a machining position determining groove for determining a machining position through a leading drill when a hole is machined on an inclined surface of a workpiece using three- The present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a method for machining a hole by using a three-axis CNC milling method.

Another object of the present invention is to provide a machining positioning groove for determining a machining position through a leading drill when a hole is machined on a slant surface of a workpiece using a three-axis CNC milling, So that it is possible to improve the accuracy of the hole and the machining precision.

It is a further object of the present invention to provide a method and apparatus for forming a workpiece positioning groove for determining a machining position through a leading drill when a hole is machined on an inclined surface of a workpiece using three-axis CNC milling, So that stable drilling can be performed.

The present invention configured to achieve the above-described object is as follows. That is, according to the present invention, there is provided a method of machining a hole shape perpendicular to an inclined surface of a workpiece using three-axis CNC milling, comprising the steps of: (a) Forming a machining position determining groove for determining a machining position at a predetermined depth by using the machining position determining groove; (b) inserting the drill bit of the three-axis CNC milling in the up-and-down direction on the machining positioning groove on the inclined surface formed in the step (a); (c) a drill bit inserted vertically and vertically into the machining position determining groove through a process of step (b) is rotated in the lower side direction of the inclined plane, while the outer circumferential face of the lower side of the drill bit is inclined to the inclined plane Rotating in a vertical direction with respect to the slope so as to be in contact with the lower longitudinal section line located on the lower side; (d) moving the drill bit inserted in the machining position determining groove perpendicularly to the inclined surface of the workpiece in the depth direction of the machining position determining groove through the process of step (c) Positioning the inner surface so that it is in contact; And (e) machining a hole having a desired depth by operating a drill bit of the three-axis CNC milling positioned right on the machining position determining groove through the step (d).

In the step (a) of the construction according to the present invention as described above, the leading end of the leading drill for forming the machining positioning groove may be constituted by a circular circular arc ball drill.

Further, in the process positioning groove formed in the step (a) of the structure according to the present invention, the leading drill is formed on the inclined surface of the workpiece in the vertical direction in the vertical direction, The lower longitudinal cross-sectional line positioned at the lower end of the second vertical cross-section can be formed perpendicular to the inclined plane.

In the step (b) of the structure according to the present invention, the drill bit inserted into the machining position determining groove is formed such that one of the outer circumferential corner portions is located on the lower longitudinal side line located on the lower side of the inclined plane of the workpiece among the longitudinal line lines of the machining positioning groove So as to be brought into contact with each other.

On the other hand, in the step (c) of the construction according to the present invention, when the drill bit inserted vertically and vertically into the machining position determining groove is rotated vertically with respect to the inclined surface, the lower longitudinal section line positioned on the lower side of the inclined surface of the workpiece, And the bit may be rotated with reference to the contact point of one outer peripheral corner portion.

Further, in the step (d) of the construction according to the present invention as described above, when the drill bit is properly positioned on the machining positioning groove, the outer peripheral corner portion of the other side of the drill bit inserted into the machining positioning groove, So that the contact of the vertical upper longitudinal line located on the upper side is achieved.

In the case of machining the hole through the machining positioning groove in the structure according to the present invention as described above, the drill bit of the 3-axis CNC milling is rotatably supported by the universal joint holder perpendicularly to the inclined surface of the workpiece A hole can be machined.

According to the technique of the present invention, when the hole is machined on the inclined surface of the workpiece using the three-axis CNC milling, the machining positioning groove for determining the machining position through the leading drill is formed first, and then the hole can be machined There is an advantage that the hole can be processed more easily.

Further, the technique according to the present invention can improve hole accuracy and machining accuracy by forming the machining positioning grooves first and then machining the holes through the three-axis CNC milling, as well as an effect of enabling stable drilling Lt; / RTI >

1 is a cross-sectional view showing formation of machining positioning grooves for determining a machining position of a hole on an inclined surface of a workpiece according to a method of machining an inclined surface using a three-axis CNC milling method of the present invention.
FIGS. 2A to 2C are cross-sectional views showing a state in which a drill of a three-axis CNC milling is inserted and positioned in a machining position forming groove formed according to the method of machining a beveled shape using the three-axis CNC milling of the present invention.
Fig. 3 is a cross-sectional view showing the machining of holes on an inclined surface according to the method of machining an inclined surface using the three-axis CNC milling method of the present invention.
FIG. 4 is a view showing a drill structure of a 3-axis CNC milling method according to a slant surface machining method using 3-axis CNC milling of the present invention. FIG.
5 is a flowchart according to the method of machining an inclined surface shape using the three-axis CNC milling method of the present invention.

Hereinafter, a method of processing an inclined surface shape using three-axis CNC milling according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a sectional view showing the formation of machining positioning grooves for determining the machining position of the hole on the inclined surface of the workpiece according to the inclined surface machining method using the three-axis CNC milling of the present invention. Figs. 2a to 2c FIG. 3 is a cross-sectional view showing a state in which a drill of a three-axis CNC milling is inserted and positioned in a machining position forming groove formed according to a method of machining a beveled shape using a three-axis CNC milling method of the present invention. FIG. 4 is a cross-sectional view showing the machining of a hole on an inclined surface according to a method of machining an inclined surface using a milling, and FIG. 4 is a view showing a drill structure of a three-axis CNC milling according to a method of machining a hole on an inclined surface using the three- Fig. 5 is a flowchart according to the method of machining an inclined surface shape using the three-axis CNC milling method of the present invention.

As shown in FIGS. 1 to 5, a method of machining an inclined surface using three-axis CNC milling according to the present invention includes machining a hole on an inclined surface 12 of a workpiece 10 through three-axis CNC milling A process S100 of forming a machining position determining groove 100 for determining a machining position of the hole 110 by using a leading drill on the inclined surface 12 of the work 10, A process of inserting the drill bit 20 of the three-axis CNC milling in the vertical direction perpendicular to the machining positioning groove 100 on the inclined plane 12 (S110) The drill bit 20 is rotated in the downward direction of the inclined surface 12 so that the outer peripheral surface on the lower side of the drill bit 20 is positioned on the lower side of the inclined surface 12 of the workpiece 10 among the longitudinal line lines of the machining positioning groove 100 (Not shown) to rotate in a direction perpendicular to the inclined plane 100 to contact the lower longitudinal cross- The drill bit 20 inserted in the machining positioning groove 100 perpendicularly to the inclined surface 12 of the workpiece 10 is moved in the depth direction of the machining positioning groove 100, (S130) of positioning the outer circumferential corner 22 of the tip end portion of the bit 20 so that the inner circumferential surface of the machining positioning groove 100 is in contact with the inner circumferential surface of the machining positioning groove 100, And a process (S140) of operating the drill bit 20 to process the hole 110 having a desired depth.

In the technique according to the present invention configured as described above, the machining positioning groove 100 for determining the machining position of the hole 110 is first formed on the inclined surface of the workpiece 10, The drill bit 20 is inserted into the machining positioning groove 100 and the hole 110 is vertically formed with respect to the inclined surface of the work 10. [ Thus, it can be seen that the technique according to the present invention is to vertically align the drill bit 20 of the three-axis CNC milling on the sloped surface 12 of the workpiece 10 to process the hole 110. [

A technique for machining a hole on the inclined surface 12 of the workpiece 10 through the three-axis CNC milling according to the present invention constructed as described above will be described in more detail as follows. First, as shown in FIG. 1 and FIG. 5, a machining position determination (see FIG. 1) for determining a machining position of the hole 110 using a leading drill on the inclined surface 12 of the workpiece 10, The groove 100 is formed at a predetermined depth (S100).

In other words, when forming the machining positioning groove 100 for determining the position of the hole 110 as described above, the machining positioning groove 100 is formed in the vertical direction of the leading drill (S100). That is, the leading drill is vertically formed with respect to the horizontal plane, and the machining positioning groove 100 for machining the hole 110 on the inclined surface 12 of the workpiece 10 is formed to have a certain depth.

As described above, after the machining positioning grooves 100 are formed perpendicular to the horizontal plane, the machining positioning grooves 100 are formed on the lower side of the inclined plane 12 of the workpiece 10 in the longitudinal section lines of the machining positioning grooves 100 A leading drilling operation is performed so that the longitudinal line 102 is formed perpendicular to the slope 12.

Therefore, as described above, the shape of the machining positioning groove 100 by the leading drill is such that the upper longitudinal line 104 positioned on the upper side of the inclined plane 12 of the workpiece 10 among the longitudinal line is vertically Vertical line 102 is formed perpendicular to the sloped surface 12. In this case,

In the step (a) (S100) as described above, the leading end of the leading drill that processes the machining positioning groove 100 may be configured as a circular circular arc ball drill.

Next, after the machining positioning groove 100 is formed on the inclined surface 12 of the workpiece 10 as described above, the step (b) is performed as shown in FIGS. 2A, 4, and 5 The drill bit 20 of the three-axis CNC milling is inserted on the machining positioning groove 100 (S110).

When the drill bit 20 of the three-axis CNC milling is inserted into the machining positioning groove 100 formed on the inclined surface 12 of the workpiece 10 as described above, the drill bit 20 is vertically and vertically . At this time, the outer peripheral surface of one side of the drill bit 20 is inserted into contact with the upper longitudinal side line 104 of the machining positioning groove 100 positioned on the upper side of the inclined surface 12.

The drill bit 20 inserted into the machining positioning groove 100 formed on the inclined surface 12 of the workpiece 10 is positioned at the position of the machining positioning groove 100 at one side of the outer circumferential corner 22, Sectional line 102 positioned on the lower side of the inclined plane 12 of the workpiece 10 among the longitudinal line of the workpiece 10 in the vertical direction.

Next, as described above, the drill bit 20 is placed on the machining positioning groove 100 in the vertical vertical direction in the state where the one side of the drill bit 20 is in contact with the lower longitudinal side line 102 of the machining positioning groove 100 The drill bit 20 inserted vertically and vertically through the process of step (c) as shown in FIG. 2B, FIG. 4 and FIG. 5 is inserted into the lower longitudinal line 102, which is in contact with the one outer circumferential corner 22, (S120) in the direction of the lower longitudinal cross-sectional line 102 with reference to the contact point (A)

In other words, the drill bit 20 inserted vertically and vertically into the machining positioning groove 100 is rotated in the downward direction of the tilted surface 12 so that the outer peripheral surface on the lower side of the drill bit 20 is positioned in the machining positioning groove 100, To be brought into contact with the lower longitudinal line 102 positioned on the lower side of the inclined surface 12 of the work 10 among the longitudinal line of the work 10. When the drill bit 20 is rotated as described above, the drill bit 20 is positioned in a direction perpendicular to the inclined plane 100.

Next, as described above, the drill bits 20 inserted in the up-and-down vertical direction on the machining positioning grooves 100 are rotated in the downward direction of the slopes 12 so as to be positioned in the vertical direction with respect to the slopes 100 Next, as shown in FIG. 2C, FIG. 4 and FIG. 5, the drill bit 20 is moved in the depth direction of the machining positioning groove 100 through the step (d) (22) and the inner circumferential surface of the machining positioning groove (100) are brought into contact with each other (S130).

When the drill bit 20 rotated in the downward direction of the inclined surface 12 is moved in the depth direction of the machining positioning groove 100 as described above, the portion of the outer circumferential corner 22 of the tip of the drill bit 20 Is inserted until it comes into contact with the inner circumferential surface of the machining positioning groove (100) and no longer enters the depth direction of the machining positioning groove (100).

When the drill bit 20 is rotated in the downward direction of the inclined surface 12 as described above, the drill bit 20 is inserted and moved in the depth direction of the machining positioning groove 100, 20 outer peripheral surface of the drill bit 20 is in contact with the lower longitudinal line 102 on the machining positioning groove 100 in the lower side direction of the inclined surface 12 and the outer peripheral corner 22 located on the upper side of the drill bit 20, The upper vertical line 104 and the contact point B, which are the upper side and the lower side,

Next, as described above, after the drill bit 20 of the three-axis CNC milling is inserted and fixed on the machining positioning groove 100 perpendicularly to the inclined plane 12 of the workpiece 10, And the drill bit 20 of the three-axis CNC milling positioned on the machining position determining groove 100 through the process of step (e) as shown in FIG. 5 to process the hole 110 of the desired depth (S140).

In the case of machining the hole 110 through the machining positioning groove 100 in the structure according to the present invention as described above, the drill bit 20 of the three-axis CNC milling is inserted through a universal joint holder 30 And rotatably supported by the inclined surface 12 of the workpiece 10 so as to process the hole 110. [

As described above, according to the present invention, the drill bit 20 of the three-axis CNC milling is inserted and fixed on the machining positioning groove 100 perpendicularly to the inclined surface 12 of the workpiece 10 The drill bit 20 of the three-axis CNC milling can be driven to precisely process the hole 110 at the position to be machined.

The technique according to the present invention is characterized in that the drill bit 20 of the three-axis CNC milling is inserted perpendicularly to the inclined surface 12 of the workpiece 10 and inserted in the machining positioning groove 100, By driving the drill bit 20 of the axial CNC milling, the flow of the drill bit 20 can be prevented and the accuracy of the hole 110 to be machined can be further improved.

The present invention is also directed to a drill bit 20 of a three-axis CNC milling machine in which a drill bit 20 of a three-axis CNC milling is inserted perpendicularly to the inclined surface 12 of the workpiece 10, Driving the drill bit 20 of the axial CNC milling facilitates the machining of the hole 110 and enables stable drilling of the drill bit 20.

The present invention is not limited to the above-described embodiments, and various modifications may be made within the scope of the technical idea of the present invention.

10. Wave workpiece 12. Slope
20. Drill bit 22. Outer corner
30. Universal joint holder 100. Machining positioning groove
102. Lower profile line 104. Upper profile line
110. hole

Claims (7)

A method for machining a hole shape perpendicular to an inclined surface of a workpiece using three-axis CNC milling,
(a) forming a machining positioning groove for determining a machining position at a predetermined depth by using a leading drill on an inclined surface of the workpiece;
(b) inserting the drill bit of the three-axis CNC milling in the vertical direction into the machining positioning groove on the slope formed in the step (a);
(c) rotating the drill bit inserted in the upper and lower vertical directions into the machining position determining groove through a process of step (b) in the lower side direction of the inclined face, Rotating the workpiece in a direction perpendicular to the slope so as to be in contact with a lower longitudinal section line located on a lower side of the slope of the workpiece;
(d) moving the drill bit inserted on the machining position determining groove perpendicularly to the inclined surface of the workpiece in a depth direction of the machining position determining groove through a process of (c) Positioning the machining positioning groove in such a manner that the machining positioning groove is in contact with the inner circumferential surface; And
machining a hole of a desired depth by operating a drill bit of the three-axis CNC milling positioned on the machining position determining groove through a step (e) and a step (d). CNC milling method for slope profile machining. 2. The method according to claim 1, wherein the leading end of the leading drill for forming the machining position determining groove in the step (a) is a round circular arc ball drill. [2] The method of claim 1, wherein the machining position determining groove formed in the step (a) is formed on an inclined surface of the workpiece with the leading drill vertically up and down, And the lower longitudinal section line located on the lower side of the slope of the slant surface is formed perpendicular to the slant surface. 2. The drill bit of claim 1, wherein the drill bit inserted into the machining position determining recess in the step (b) has a one-side outer circumferential corner portion which is located on the lower side of the inclined surface of the workpiece among the longitudinal- And the cutting insert is inserted so as to be in contact with the longitudinal section line. 5. The method according to claim 4, wherein, in the step (c), when the drill bit inserted vertically and vertically into the machining position determining groove is rotated perpendicularly to the inclined surface, Axis and the drill bit is rotated with reference to a contact point between the line and the one-side outer circumferential corner portion of the drill bit. 5. The method according to claim 4, wherein, in the step (d), when positioning the drill bit on the machining position determining groove, the outer peripheral corner portion of the other side of the drill bit inserted into the machining position determining groove and the inclined surface And the upper vertical line of the vertical section positioned on the upper side is contacted. The drill bit of any one of claims 1 to 6, wherein when drilling a hole through the machining positioning groove, the drill bit of the 3-axis CNC milling is passed through a universal joint holder, And the hole is vertically rotatably supported with respect to the base plate, thereby processing the slant surface shape using the three-axis CNC milling.

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