KR20120057534A - Testing method for machining cutter - Google Patents

Abstract

PURPOSE: A method for testing a machining cutter is provided to decide whether a machining cutter is accorded with set sizes and specifications or not by accurately obtaining a rate of the machining cutter. CONSTITUTION: A method for testing a machining cutter is as follows. A standard test pattern is set for a testing machine(100). An image of a molded machining cutter is taken(101). The image of the machining cutter is input into the testing machine, thereby being compared with the test pattern(102). Each testing rate is obtained by comparing a test pattern measuring area and the image of the machining cutter(105). Data for deciding whether the machining cutter is accurately molded or not is obtained by comparing the test rate and an allowable error test rate set in advance(106).

Description

Test method of machine cutter {TESTING METHOD FOR MACHINING CUTTER}

The present invention relates to a test method of a machine cutter, and more specifically, by using a ratio of the machine cutter picture to the built-in test pattern in the measurement tool to test the machine cutter formed by comparison / analysis, the machine cutter is precisely A method of testing and simultaneously testing the endurance life of a grinding tool.

In various machine operations, drilling or milling is used in the manufacture of processed products and, moreover, in basic mechanical processes such as lathes, benching, welding and the like. No matter what mechanical process is applied, a machine cutter is required for operation. Machine cutters used in drilling and milling, such as drill bits or mills, are the most commonly used machine cutters in general mechanical work, and the cutter head must have a certain angle, size and edge angle to perform drilling or milling well during machine operation. do. The drill bit or mill must be ground to a predetermined size, angle or shape before use, and passivation of the cutting edge can be found after use. Thus, the cutting edge is again sharpened before repairing and using the drill bit or mill and performing machine operation. In most cases, grinding wheel machines are repaired and used to grind drill bits, mills or other machine cutters at desired angles, sizes, lengths or shapes, etc., and the machine cutters are ready for operation. However, as various types of machine cutting continue to wear, repair, and shape, it is easy to change size, angle, length or shape; Or as the grinding wheels used for grinding and repair wear and break after use, causing changes in the size, angle, length or shape of the cutter during the grinding, repair and shaping process. Therefore, after wear and repair, all machine cutters must be tested before they can be used for machine operation. Due to the considerable size of the machine cutter, the operator selects a ruler, tool or other testing tool for testing and judgment, or performs visual testing by their experience, but this can easily lead to inaccurate testing situations. Due to the small machine cutters such as micro drill bits or micro mills, only manual visual testing is possible, and this method has many problems and inconveniences in the real testing procedure:

(1) Passive visual testing of machine cutters is likely to cause large testing errors, and it is impossible to precisely test and determine the dimensions, angles, lengths or shapes of machine cutters, making molding and repairing machine cutters inaccurate. .

(2) In practical operation, an error that is too large in the dimensions, angles, lengths or shapes of the machine cutter may render the machine operation impossible or may be a dangerous situation of damage or breakage.

The present invention is to overcome the above-mentioned conventional problems, the object of the present invention is to solve the present problem that it is impossible to precisely test the machine cutter according to the grinding or maintenance work, and to ensure that the machine cutter is in accordance with precise specifications In order to solve the inconvenience of manual visual testing to provide a test method of the machine cutter.

As an example of a test method of a machine cutter according to the present invention, a standard test pattern is set in a testing machine, a picture of a molded machine cutter is input into a testing machine, compared with a built-in test pattern, and the picture is rotated to test patterns. By coaxially overlapping the centerline of the presented photograph with the centerline of the presented photo, the multiple measurement zones formed around the edges of the test pattern are respectively compared to the overlapped portions of the photograph, and the test ratio is the overlapped portion of the machine cutter by the entire area of the test pattern. It can be obtained by dividing the area difference between and the measurement zone. By comparing and analyzing the preset tolerance test rate with the test rate, the judgment data of the machine cutter determines the endurance life of the tool used to test the machine cutter and used to grind the shaped machine cutter.

Another example of the present invention is to set a standard test pattern on the testing machine according to the standard dimensions of the machine cutter in the range of 0.03 mm to 5.0 mm, depending on the exact dimensions of the machine cutter actually used, machine cutter or other Comparison and analysis of micro machine cutters (for example, drill bits, micro drill bits, milling cutters or micro milling cutters).

As another example of the invention, it is to set up a measurement zone covering different areas around the edge of the standard test pattern embedded in the testing machine. In a preferred embodiment of the invention, each point of the four edges of the test pattern is selected to divide the test pattern into four measurement zones covering different areas. After the picture of the machine cutter is entered into the test machine, the difference in the area is detected through the four measuring zones, and also compared with the preset test rate table, comparing with the entire area of the test pattern to obtain four test rates. The endurance life of the grinding tool is then detected to determine if the machine cutter is molded correctly and to determine if the machine cutter needs to be replaced or repaired.

The test method of the machine cutter according to the present invention has the following effects:

(1) The ratio of the machine cutter 1 can be obtained accurately to determine whether the machine cutter 1 meets a given dimension and specification.

(2) The error range is very small in the measured dimensions, angles, lengths or shapes of the head of the formed machine cutter 1, meets standard specifications, and the machine cutter work can be made more naturally and safely.

Accordingly, the present invention obtains various ratios of the machine cutter's dimensions and angles, etc., by comparing the pictures of the machine cutter input into the testing machine using a standard test pattern conforming to the standard specification in the testing machine, and the machine cutter meets the standard standard. It deals with the design of a testing method for machine cutters that determines fit and checks the endurance life of the grinding tool for the machine cutter. Testing of the testing machine to shape the machine cutter and determine the specifications of the machine cutter provides more accurate data on the machine cutter and allows the machine cutter to work well.

However, the foregoing is only one example of a preferred embodiment of the present invention, and does not limit the scope of the claims of the present invention. All modifications and equivalent structural changes without departing from the spirit and technical spirit of the present invention are included in the claims of the present invention.

In summary, a testing method for a machine cutter can be substantially achieved when its function and purpose are practically applied and specified. Therefore, the present invention is excellent in practical application and satisfies the requirements of the patent.

1 is a flow chart in accordance with the present invention
2 is a plan view of a standard test pattern in accordance with the present invention;
3 is a photographic image of a machine cutter according to the invention
Figure 4 is a (I) step of testing according to the present invention
5 is a step (II) of the testing according to the present invention
6 is a step (III) of the testing according to the present invention
7 is a step (IV) of the testing according to the present invention
8 is a step (I) of the testing according to another embodiment of the present invention
9 is a step (II) of the testing according to another embodiment of the present invention
10 is a step (III) of the testing according to another embodiment of the present invention
11 is a step (IV) of the testing according to another embodiment of the present invention

BRIEF DESCRIPTION OF THE DRAWINGS In order to achieve the objects and functions as well as the techniques adopted in the present invention, examples of the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

1, 2 and 3, respectively, a flowchart, a plan view of a test pattern, and images of machine cutters as well as images (I), (II) and (III) of a testing system of practical application according to the present invention. Show the image. As clearly shown in these figures, the testing method for a machine cutter according to the present invention consists of the following testing steps:

(100) The standard test pattern 2 is set in the testing machine according to the standard specification and size of the machine cutter 1 and the like.

(101) Take a picture of the head 11 of the machine cutter 1 that has been ground, repaired and molded.

(102) The photograph 11 of the machine cutter 1 is obtained, input into the testing machine, and compared with the embedded test pattern 2.

(103) The photograph 11 of the machine cutter 1 is rotated to align the centerline of the test pattern 2 with the centerline of the presented photograph 11, and the reference points 13, which are set in advance on the edge of the photograph 11, 14, 15, 16 are replaced with preset test points 22, 23, 24, 25 on the edge of the preset test pattern 2, and the photograph 11 of the machine cutter 1 and the test pattern 2 Overlaps coaxially.

(104) Extract the multiple measurement zones 220, 230, 240, 250 from preset test points 22, 23, 24, 25 on the edge of the test pattern 2, and the photograph 11 of the machine cutter overlaps. The comparison is made one by one by using some of the measured measurement zones 220, 230, 240, 250.

(105) not only the entire area of the test pattern 2 but also the area between the overlapping part of the photograph 11 of the machine cutter 1 and the measurement areas 220, 230, 240, 250 of the test pattern 2. Calculate the difference, and get the test rate for each by comparison.

(106) The test ratio table is compared with the preset test ratio, and this data determines whether the machine cutter 1 is properly molded.

The ratio data obtained by comparing the measuring tool and the test pattern 2 included in the analysis with the photograph 11 of the machine cutter 1 can be used to recognize the dimensions, angles, lengths or shapes of the machine cutter 1, The machine cutter 1 is checked for accuracy after grinding and repair. In addition to this, the data can be used to ensure that the grinding tool is replaced or repaired in accordance with the endurance life of the grinding tool (such as a grinding wheel machine or grindstone) used to grind or repair the machine cutter 1. Allow the cutter 1 to be ground or repaired to specification.

The measuring tool can be a computer or computer numerical control (CNC) machine tool, the proposed dimensions of the standard test pattern (2) inserted in the measuring tool are determined according to the standard specifications of the machine cutter (1), for example 0.03 mm, 0.05mm, 0.1mm, 0.5mm, 1mm, 1.5mm, or 2mm, 3mm, 4mm or 5mm, etc., approximately 0.03mm to 5.0mm, small machine cutter (1) or machine cutter and test pattern (2) Analyze and compare between them.

4, 5, and 6 illustrate steps (), (), () for testing according to the present invention. As clearly shown in these figures, in the present invention, the test pattern 2 is the front pattern of the head of the machine cutter 1, and the photograph 11 is the front image of the machine cutter 1. Then, the test data includes the first reference point 13, the second reference point 14, the third reference point 15, and the fourth reference point 16 on the edge of the photograph 11 of the test pattern 2. It is obtained by aligning with the 1st test point 22, the 2nd test point 23, the 3rd test point 24, and the 4th test point 25 on an edge, respectively.

Then, the photograph 11 is rotated to compare the photograph 11 with the test pattern 2. By rotating the photograph 11 of the machine cutter 1 180, the third reference point 15 of the photograph 11 is aligned with the first test point 22, and the first reference point 13 is subjected to the third test. Aligned with point 24 and second reference point 14 aligned with fourth test point 25 to overlap, compare and measure photograph 11 and test pattern 2; The photograph 11 and the test pattern 2 at the normal position and the 180 rotational positions are continuously compared to obtain complete comparison data, and the symmetrical accuracy of the test pattern 2 on the left and right sides is confirmed.

The test pattern 2 and the picture 11 are front views of the head edge of the machine cutter 1, such as a drill bit, micro drill bit, milling cutter or micro milling cutter.

The drill bit is a machine cutter 1 in a preferred embodiment of the invention, which can be a micro drill bit, a milling cutter or a micro milling cutter or the like. The present invention is not limited to the kind of the machine cutter 1.

Predetermined test points 22, 23, 24, 25 set up on the side edges of the standard test pattern 2 (i.e., test points 0, 0 and 180 degree patterns compared to FIGS. 1 and 2). 1, 2, 3). These test points are chosen to describe the preferred embodiment of the present invention and do not limit the number of test points. Depending on the actual needs for measuring the test pattern 2, two or more test points 22, 23, 24, 25 can be set on the edge of the test pattern. In addition, the measurement zones 220, 230, 240, 250 formed around the test points 22, 23, 24, 25 may expand or expand as the test points 22, 23, 24, 25 are moved or changed. It can be reduced and the standard test pattern 2 will conform to the actual shape and dimensions of the machine cutter 1 to facilitate comparison or analysis.

4, 5, 6 and 7 illustrate steps (I), (II), (III) and (IV) for testing in accordance with the present invention. As is clearly shown in these figures, the testing method presented in the present invention adjusts and rotates (rotates to the original position) the photograph 11 of the cutter head of the machine cutter 1 input into the original testing machine. The center line 12 of the picture 11 overlaps the center line 21 of the test pattern 2 coaxially so that the picture 11 of the cutter 1 and the standard test pattern 2 embedded in the testing machine overlap. Let it go. Then, the first reference point 13, the second reference point 14, the third reference point 15, and the fourth reference point 16 on the edge of the photograph 11 are formed on the edge of the test pattern 2. The first test point 22, the second test point 23, the third test point 24, and the fourth test point 25 correspond directly to each other. In the measurement zones 220, 230, 240, 250 formed respectively around the test points 22, 23, 24, 25 on the edge of the test pattern 2, the measurement zone 220 surrounded by the edge of the test pattern 2. There is a difference 3 between the area at) and the overlapping area at the reference point 13 on the edge of the picture 11 of the machine cutter 1, that is, the area that is not overlapped; The area difference is compared for the whole area of the test pattern (2), and the test rate is obtained by allowing the area difference to be divided by the whole area, and compared with the test rate and the standard test rate tolerance table of the machine cutter (1). And analyze. Similarly, the other test ratios are the overlapping area of the second measuring zone 230 of the second test point 23 and the reference point 14 on the edge of the picture 11 of the machine cutter 1, the third test point. The overlapping area of the test point 15 on the edge of the third measuring zone 240 of 24 and the picture 11 of the machine cutter 1, and the fourth measuring zone 250 of the fourth test point 25. ) And the overlapping area of the reference point 15 on the edge of the photograph 11 of the machine cutter 1. By controlling this test rate, it becomes easy to test whether the head of the machine cutter 1 conforms to standard specifications in dimensions, angles, lengths or shapes.

8, 9, 10 and 11 illustrate steps (I), (II), (III) and (IV) for testing according to another embodiment of the present invention. As is clearly shown in these figures, the testing method presented in the present invention includes comparing the rotated photograph 11 with the test pattern 2. After the photograph 11 of the machine cutter 1 has rotated 180, the third reference point 15 of the photograph 11 is used to coincide with the first test point 22 of the test pattern 2, and the fourth Match the reference point 16 and the second test point 23, the first reference point 13 and the third test point 24, and the second reference point 14 and the fourth test point 25, The photographs 11 overlap each other, and the test patterns 2 are compared and tested in different directions. Test points 22, 23, 24, 25 are randomly selected at each edge of test pattern 2 to form measurement zones 220, 230, 240, 250. Compare the area of the first measurement zone 220 around the first test point 22 with the area of the third reference point 15 of the photograph 11 that is rotated 180 degrees and at the reference point 22 with the measurement zone 220. The test ratio is obtained by comparing the difference 3 region between the overlapping regions at the third reference point 15 with the entire region of the test pattern 2, that is, the test ratio is the ratio of the region difference with respect to the entire region. The test rate is then analyzed by comparison with a given standard test rate tolerance table of the machine cutter 1. Next, the first reference point 16 of the photograph 11 rotated 180 degrees overlaps the second measurement area 230 around the second test point 23, and the first of the photograph 11 rotated 180 degrees. Circumference of the third test point 24 with reference point 13 and circumference of the second test point 25 with the second reference point 14 of the photograph 11 rotated 180 degrees. Overlapping the fourth measurement zone 250 results in a different test rate; The photograph 11 after being rotated 180 degrees with the normal position is repeatedly compared with the test pattern 2 to obtain more complete data, and furthermore, the symmetry of the photograph 11 is checked on the left and right sides.

4, 5, 6, and 7 show steps (I), (II), (III), and (IV) for testing of the present invention, and FIGS. 8, 9, 10, and 11 show other embodiments of the present invention. Figures (I), (II), (III) and (IV) for testing are shown. As clearly shown in these figures, the photograph 11 of the machine cutter 1 is repeatedly compared with the test pattern 2 in the normal position and the position after the rotation of 180 degrees, respectively, so that the testing precision and the machine cutter 1 It improves the stability of the head and the machine cutter 1 is applied substantially to make the head work more naturally when used in the process. This prevents large errors resulting from passive visual testing, promotes process smoothness and stability of the machine cutter 1 and minimizes the occurrence of breakage of the machine cutter 1 in the process.

Test rates obtained from testing are used directly for comparison and analysis, or are stored for future use.

The foregoing descriptions merely illustrate one example of a preferred embodiment of the present invention and do not limit the scope of the claims of the present invention. For the testing method described in the present invention, the standard dimensions and specifications of other types of machine cutters 1 are the basis for setting the standard test pattern 2 in the test machine. At the edge of the test pattern 2, the test points 22, 23, 24, 25 are selected to form the measurement zones 220, 230, 240, 250 covering the other areas of the machine cutter 1 formed. The photograph 11 is input to the testing machine to obtain a test ratio of the photograph 11 of the machine cutter 1 to the test pattern 2, compared to the test pattern 2 through the measuring zone, and thus the formed machine When the cutter 1 follows the standard criteria, the endurance life of the tool used to grind the machine cutter 1 is checked to achieve the purpose of the analysis and to determine that the tool is to be replaced or repaired. All processes, testing methods, measurements, or assemblies that can achieve the effects described above are included in the present invention, and all changes and equivalent structural changes are included in the appended claims of the present invention.

1: machine cutter 2: test pattern
11: Photo 13, 14, 15, 16: Reference point
22, 23, 24, 25: test points
220, 230, 240, 250: measuring zone

Claims (10)

(a) establishing a standard test pattern at the testing machine,
(b) taking pictures of the shaped machine cutter,
(c) inputting the photograph into a testing machine and comparing it with the embedded test pattern;
(d) rotating the photograph of the machine cutter to align the centerline of the test pattern with the centerline of the presented photograph, and coaxially overlapping the photograph of the machine cutter with the test pattern;
(e) comparing the multiple measurement zones of the test pattern with the overlapping portions of the photograph of the machine cutter, respectively;
(f) obtaining a test ratio, respectively, by comparing the measurement zone of the test pattern with the photograph of the machine cutter,
(g) obtaining data to determine whether the machine cutter is molded correctly by comparing the test rate with a preset tolerance test rate;
Test method of a mechanical cutter, characterized in that consisting of.
The method of claim 1,
And said testing machine is a computer.
The method of claim 1,
The machine cutter is any one of a drill bit, a micro drill bit or a milling cutter, and the standard test pattern embedded in the testing machine is any one of a drill bit, a micro drill bit, a milling cutter or a micro milling cutter. Test method.
The method of claim 3,
The standard test pattern embedded in the testing machine is a test pattern of the machine cutter, characterized in that the test pattern according to the standard dimension of the machine cutter (dimension range is 0.03mm to 5.0mm).
The method of claim 1,
The test pattern is a front pattern of the machine cutter head, the picture of the machine cutter is a front image of the machine cutter head, the test pattern and the picture is a front view of the edge of the drill bit, micro drill bit, milling cutter or micro milling cutter. Test method of the machine cutter made with.
The method of claim 1,
The test pattern embedded in the testing machine includes a measuring zone covering a different area set along a preset test point at the edge of the test pattern.
The method of claim 6,
The four edges of the test pattern comprise test points and a measuring zone is formed which covers the other area.
The method of claim 6,
A test method of a machine cutter, characterized in that the area and the position of the measuring zone around the test point presented in advance at the edge of the test pattern are adjusted according to the position of the test point.
The method of claim 1,
In the steps (d) and (e), the photograph of the machine cutter may be rotated 180 degrees, overlapping the test pattern, repeating the steps (d) and (e), and confirming the symmetry of the photograph of the machine cutter. The test method of the machine cutter, characterized in that to compare the test pattern and the picture of the machine cutter.
The method of claim 1,
In step (f), the test ratio is obtained by dividing the area difference between the measurement area surrounded by one edge of the test pattern and the overlapped area at the corresponding edge of the photograph of the machine cutter by the entire area of the test pattern, which is A method for testing a mechanical cutter, characterized in that it is the ratio of the area difference to the entire area of the measurement zone.

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