TW542901B - Measurement method and device of work piece - Google Patents

Abstract

A measurement method and device of work piece is disclosed, wherein mainly the image of work piece captured by a camera device is digitized by CPU to form a comparison image, and form a standard line by CPU, which is controlled by a controller to relatively move or rotate the comparison image with respect to the standard line. When each edge line of the standard line is overlapped with the comparison image, a coordinate value or rotation quantity is outputted, so as to obtain the measurement value by comparing the coordinate value and rotation quantity.

Description

542901 V. Description of the invention [Previously, there is a projected projection on a machine, and the projection (1) field] is related to a method and device for measuring a workpiece, especially an image that is digitized to obtain an accurate measurement value. The test method and its installation 8 and technology 5 Figure 8 1 Box 8 Screen 8 One of the shadow box work left and right adjustment and shift is not shown, and then print line 8 test. Youhe Projection Projector is set to move its work) will project Youhe 8 and the appropriate standard screen 8 so that the original work before the original work is shown on the projected standard projection set 3, 4, 8 3 sets of 8 full wheels, Rear management system 8 Shadow screen alignment screen 8 Measure the alignment of the workpiece 8 8 4 and then inside the workpiece projection stage 8 2, a precision optical projection used for "quotation" has a table 8 2, the table 8 and the projection The front of the box 8 3 has a projection screen 8 4 and several pieces are provided on the front. The front screen is provided with a rotatable projection screen 8 2 with an adjustable worktable 8 2 left 8 6 and an adjustable worktable adjustment. The wheel 8 7 is turned on by the workpiece 8 4: provided on the work 2. And the workpiece on the transparent 8 of 8 is used as the projection of the light corridor inside the table 8 2 to project. For measurement, a film is required to enter the machine through the contour boundary of the film image. It is made of frosted glass on the top of 2 8 4 1 4 knob, move right 8 2 front, source (standard line comparison amount preselected in box 8 3 in the figure)

The left and right lengths are taken as an example. The user needs to select the printed film first, and clamp the film with the clip 84 1 to adjust the left and right adjustment wheels 8 6 to drive the table 8 2 9 to outline the contour boundary to the standard line 8 8 , And then the X, Y of the optical ruler (not shown)

III

Page 4 542901 V. Inventory Coordinate 2 of the invention, until it is clear, however, see 6th projection 9th projection 9 8 8 overlap 8 8 It is very likely that the projection screen with a suitable standard will be 8 screens and 8 screens. In the figure, the screen and the workpiece are not adjusted. The other angle of the adjustment ⑵ is reset to zero. The workpiece is cast by X, and the transparency is usually drawn. The contours of the gallery are all the same. ”When the line 8 8 is changed, the measurement guideline 8 4 is moved. The projection 9 of the eclipse 9 4 is turned on the 9 knob 8 side and the target, and then the shadow 9 is adjusted. In addition, when the standard line on the Y-axis seat film is a 3 mm boundary, the boundary contact will be read. Adjust the boundary between the left and right and read the standard value. Read the standard line 8 8 8 8 A certain standard line 8 8 is produced into a single boundary of the workpiece and the standard line 8, and the measurement of the edge pairs is obvious. The apparent error of the described error is better than the specified error, that is, the projection of the film with the angle 8 of two different pieces is adjusted. Screen 8 is engraved on the corner of the projection rotation, 5 Projection guideline 8 8, and the same measurement as an example, 'and the shadow box 8 4 rotate the screen 8 4 when the projection is aligned screen 8 4 again use the peripheral screen 8 measured on film 3 for this workpiece result, then Turn to the wheel 8 6 to move the working line 8 8 to the left and right of the part again in order to be able to make the operation to about 0 · 3, the error of the visual inspection, that is, the edge, or the boundary with the shadow 9 and 8 Whether or not the length is at least to be carried out in the above method, the error will be long as the stage 8 is not aligned by different operators. The author looks at mm 〇 Please compare the work. When the standard line of the work is compared with the standard line, the person measuring the same operation twice to measure the same operation must also first select and print the clip 841 clamped to the knob 8 5 to make the projection j. The zhenzhi system uses a scale of the encoder to sense and rotate the detector to the standard line 8 8 to zero the angle value and then move it until the workpiece is projected 9 and the angle of rotation can be changed.

Page 5 542901 V. Description of the invention The reading of the degree value is so visually aligned that the scale of the roundness of the etched hair is also necessary because of various errors in the periphery [purpose and unit of the workpiece when it overlaps with the standard line Calculate [the following steps a within the technology to deal with b on the display of the unit display · select (3) the angle of the workpiece and the glass body has a scale of one cumulative, the current 0 efficacy] the main measurement method of the relative shift , Average output capacity] Ming Department of photography will work like the image; the central angle. The measurement method will also cause errors due to the aforementioned standard line 88. Furthermore, the projection screen 8 4 is formed by passing through, and the circular projection screen 8 4 made of frosted glass has a certain error, in other words, The amount of error determined by the periphery of the projection screen 84, therefore, there will also be a certain error in the amount of rotation known by the encoder to detect the projection screen, which will cause a considerable measurement error. The used projector and its measuring method have been modified for the purpose of providing a device and a device for solving the above-mentioned problems. By moving or rotating the digitized workpiece image, the standard line is compared with the image. Each side has a standard value or rotation amount, and the central processing value can be used to achieve accurate measurement. A method and device for measuring a workpiece are provided. The method includes setting and obtaining a workpiece image on a workbench, digitizing a central image to form a comparison image, and outputting the comparison image to a set of standard lines in a display unit; One X, Y axis movement controller or rotation controller

Page 6 542901 V. Description of the invention, so that d. Standard or rotation amount e. The embodiment of the present invention is of course different. It is explained, and the actual structure of the embodiment is described in the embodiment. A table is set to move one X-axis to one of the displacements to capture D or C Μ (4) comparison image Relatively move or rotate with the target line and comparison image guideline; when each edge line overlaps, a target value central processing unit is output to compare each coordinate value or rotation amount. However, the details selected in the drawings are read in the first structure 9 Limitation. In the embodiment, the volume control on the machine 1 is used to control the image of the y-axis shifting device, and the central processing of the 0S. The central describes other purposes and advantages, and it is not difficult to obtain an in-depth understanding from the following selected instructions and drawings. The embodiments that are allowed to be useful in some other parts or the arrangement of the other parts will be shown in detail in this specification. [Explanation] Figures 4 to 4, the ones shown in the figure are selected for the purpose of the present invention and are for illustration purposes only. They are not subject to this workpiece measurement device in patent applications. They include: 1 worktable 1 1, It is used for workpiece setting. There should be a device 12 for adjusting the displacement of the table 11 in the X-axis direction, and a momentum controller 13 for adjusting the table 11 in the y-axis side. 15 is set up above the work table 11 to capture that the photographing device 15 is a C C photographing module in this embodiment. The unit 16 is, in this embodiment, provided on the machine. The processing unit 16 is connected to the photographing device 15.

Page 7 542901 V. Description of the invention (5) 工件 The workpiece image is digitized to generate a comparison image, and the central processing unit 16 has a plurality of sets of standard line digitized images. A display 17 is connected to the central processing unit 16 to display a comparison image and a standard line image. In this embodiment, the display 17 further has a display panel 17 1 to display measurement data. A rotation amount controller 14 is provided on the machine 1 in this embodiment, and is connected to the central processing unit 16. The rotation amount controller 1 4 Control the standard line image to rotate to this step: • Generate a photographic image of the workpiece. • The selected measurement position is shown in the picture. • Adjust the actual amount 3 to make 1 1 shift the comparison and include the following steps. Step 1 with 1 6 Step 1 7 Step 2 with the same number of lines will also work with Step 3 by 2 and 1. Table image, when using the Ming workpiece measurement method to measure the side length of the workpiece, compare the images: Set 15 to obtain the image of the workpiece, and digitize the central processing unit image to form a comparison image, which is displayed on the display Standard line: If required, a set of standard line images is selected from a plurality of standard images built in the central processing unit 16 on this standard line image display 17. X, Y-axis movement amount controller: Adjust the X, Y-axis movement amount controller respectively as needed for measurement. 1 The table 1 1 moves in the X-axis or Y-axis direction. When moving, the camera 15 will still capture at any time. The image of the workpiece is moved relative to the image of the standard line.

Page 8 542901 V. Description of the invention (6) Step 4 · Standard line overlaps with the side line of the comparison image: During the movement of the table 11, when the standard line image overlaps with one side line of the comparison image, the central processing unit 16 will detect this situation, and for easy identification, the central processing unit 16 will change the color of the overlapping edge and the standard line, so that the user can clearly identify on the display 17 • Output X of the workpiece Reading while working, Y-axis base • Coordinate value is overlapped with the aforementioned line. The value of the optical ruler is compared. • The output is from the center. This measurement is performed in the comparison of the present invention without any problems. Therefore, when step 5 is 16, the coordinate of step X inside the other side of step X is read. Step 7 is measured by the digitized bit. Therefore, the error, Y axis, and scale 1 1 Reconciliation comparison: Step four, the central X, Y pairs. The measured unit value will be entered. The measured value is also entered in the same image and the same pair, and the know-how can reach the coordinate value guidelines. [^ 光 zero ° and steps to process the single-axis coordinate 1 6 will be displayed in the display. The boundary and the standard are the values of the X and Y axes of the central processing unit when the number is overlapped from the central operation to the precise one time. When the standard line and the workpiece 16 are read again, the value of the table 1 will be read again. By comparing this one coordinate value with the previous two coordinate values, the display panel 171 can be obtained for the user in the central processing unit 16. The determination of the alignment of the guideline is based on the standardized standard line, which is interpreted by the central processing unit processing unit 16 and the measurement results that cannot be avoided when judged by visual inspection.

Page 9 542901 V. Description of the invention When the method and steps are described, the steps, steps, steps, steps, steps, steps, and guidelines are at the center of the line. The steps include four or five and seven. When the union turns the 6th in the front controller, it is necessary to cast (7). This is the same as the above: Generates the output value than the standard adjustment, the standard line output, the coordinate value output, and only the step adjustment. The standard line of the corner of the piece, when the scalar is compared with the angle 14, the device and the length of the edge of the screen are measured. The image is aligned: the guideline: the momentum controller and the compared image momentum: comparison: measured value three Step 5: The momentum controller moves the standard line on the machine 1. Momentum: The measurement method of the standard line can be output after the alignment of the edge and the standard line image and the workpiece. Therefore, the method is very similar when generating and adding the angle to measure the angle. The edges shown in the figure overlap: Unlike the previous method for measuring the length of a side, the rotation amount controller 1 4 rotates from the middle image so that when the comparison image overlaps with the target for the first time, the amount of the central processing unit returns to zero first. When the other corner of the central processing sheet is aligned again, a rotation amount will be used. In the method of the present invention, the image is rotated by rotating, rather than whether the upper corner edge and the standard line do not overlap when measured by the method of the present invention as in the prior art.

Page 10 542901 V. Description of the invention (8) The judgment is made by the central processing unit 16; therefore, the angle can be accurately measured with the present invention. In summary, the present invention moves or rotates the digitalized workpiece image relative to the standard line, and outputs a standard value or rotation amount when the standard line overlaps with each side line of the comparison image. The central processing unit 16 calculates the measurement value to achieve the effect of accurate measurement. The disclosure of the embodiments described above is intended to illustrate the present invention, and is not intended to limit the present invention. Therefore, any change in numerical values or replacement of equivalent components should still belong to the scope of the present invention. From the above detailed description, those skilled in the art can understand that the present invention can indeed achieve the aforementioned purpose, and it has already complied with the provisions of the Patent Law, and filed a patent application.

Page 11 542901 Brief description of the diagram. Figure 1 is the configuration diagram of the measuring device of the present invention. Figure 2 is a schematic diagram of the three-dimensional appearance of the measuring device of the present invention. Figure 3 is the measuring method of the present invention when measuring the side length. Flow chart 4 is a flowchart when measuring angle by the measuring method of the present invention. FIG. 5 is an external view of a conventional precision optical projector. FIG. 6 is a conventional precision optical projector. Schematic diagram of the overlapping or not of the workpiece edges [Illustration of the drawing number] (conventional part) Machine 8 1 Projection box 8 3 Clip holder 8 4 1 Left and right adjustment wheels 8 6 Standard line 8 8 (Part of the invention) Machine 1 X axis Movement amount controller 1 2 Turn amount controller 1 4 Central processing unit 16 Display panel 1 7 1 Table 8 2 Projection screen 8 4 Knob 8 5 Front and rear adjustment wheels 8 7 Workpiece projection 9 Table 1 1 Y-axis movement amount Controller 1 3 Camera 1 5 Display 1 7

Claims (1)

542901 VI. Scope of patent application1. A method for measuring workpieces, including the following steps: a. Obtaining the image of the workpiece with a photographing device, and digitizing the workpiece image by a central processing unit to form a comparison image; b · Set a standard line; c · Control with a controller to make the comparison image and standard line move or rotate relative; d · When the standard line and each edge of the comparison image overlap, a standard value or rotation amount is output; e · The central processing unit compares two or more coordinate values or rotation amounts to obtain measured values. 2. The workpiece measurement method according to item 1 of the scope of the patent application, wherein the central processing unit is a measurement device that outputs a comparison image to a display to present a workpiece, which includes: a workbench, For workpiece setting, the table is provided with an X-axis movement amount controller that adjusts the displacement of the table in the X-axis direction, and a Y-axis movement amount control state that adjusts the displacement of the table in the Y-axis direction, a photographing device, The system is set up above the workbench to capture the image of the workpiece; a central processing unit is connected to the photographing device to digitally process the workpiece image to generate a comparison image, and the central processing unit has a set of built-in Digital image of the above standard line; a display connected to the central processing unit for display Page 13 542901 6. The scope of the patent application is to compare the image with the standard line image and measurement data. A rotation amount controller is connected to the central processing unit. The standard line image is controlled by the rotation amount controller. Spin. Page 14