TWI666081B - Boundary-joint laser-mark machine and the method thereof - Google Patents

Abstract

A laser marking partition joining device includes a laser marking device, a laser source device, and a vision device. The laser marking device has a user interface for drawing graphics and importing request data, and a computing module according to the graphics. After requesting and outputting readable data, the galvanometer module is used to drive the laser source device, the controller module receives the readable data and the galvanometer data transmitted by the galvanometer module, and then reads the readable data and the galvanometer module. The transmitted galvanometer data is subjected to interpolation operations; the laser source device, after receiving the preset values of the image connection parameters, performs zone marking on the workpiece.

Description

Laser marking zone joining device and method

The invention relates to a laser marking device, in particular to a laser marking partition joining device for performing laser marking by using an image partition joining method.

The conventional laser marking machine is a method of forming characters, patterns and other marks on the surface of the workpiece by laser. Compared with traditional mechanical engraving or chemical etching methods, it has high accuracy, high speed, and permanent marks. Advantages, so in the industry, especially in the integrated circuit industry, the required high precision and high-volume production of IC marks, so laser marking technology and devices are really important in the industry.

The general laser marking machine includes a laser source, a control card and a galvanometer module. The laser source emits laser light. In order to match the characteristics of high speed and high accuracy, the laser marking machine The laser source is usually a pulse laser. With the use of a control card, the frequency of the pulse laser, the switch of the pulse laser, and the power of the pulse laser can be adjusted in real time to meet the needs of the user. The control card is used to Issue commands to command and control the operation of the galvanometer module and the laser source; the galvanometer module is used to adjust the imaging quality of the laser light on the surface of the object. The optical module includes the X-direction galvanometer module and the Y-direction Galvanometer module, the actual marking is by adjusting the rotation angle of the two galvanometer modules to control the position of the laser light spot, but the rotation angle of the galvanometer module has its specific range, resulting in the laser marking processing range. Limited, in order to achieve a wide range of marking applications, the stitching method will be used to divide the large range of graphics into several small areas. The actual marking is one zone and one zone for marking, and These areas are stitched, so-called zone marking, to meet the needs of fast speed and large range at the same time.

Referring to FIG. 1, FIG. 1 is a schematic diagram of a trajectory after a laser source is irradiated on a workpiece when a conventional laser marking machine performs marking. In FIG. 1, the component symbol 90 indicates the expected marking pattern, and refers to the figure that the user wants to form on the workpiece 9. The expected marking pattern 90 will be stored on the control card by electronic files (not shown in FIG. 1). ), The control card converts the electronic file with the expected marking pattern 90 into a signal that can be read by the laser source (not shown in FIG. 1) to drive the laser source for marking. During the marking, the laser source will form multiple laser points on the workpiece 9. The collection of laser points at different times constitutes the laser source trajectory 91. Figure 1 shows that during the marking process, from the beginning to the end, For the scatter diagram of the laser source trajectory 91, the marking process starts from the marking start point 91S and ends at the marking end point 91E. However, in order to ensure that the laser source trajectory 91 is actually performing the marking process, it is in accordance with the expected marking pattern 90. The position of the marking start point 91S is consistent with the marking end point 91E. The control card will have a delay parameter. After waiting for a period of time for the galvanometer module to operate, the laser point reaches the marking starting point 91S and marking of the expected marking pattern 90. At the end of 91E, the marking process is stopped or the marking process is stopped. During the marking process, the laser source keeps moving at the same speed, but the laser source is always before the marking start point 91S or after the marking end point 91E. Keep it on. In this way, from zero speed acceleration to processing speed, or from processing speed deceleration to zero speed, the slower starting and ending segments in the area where the travel speed is lower than the processing speed are easy to gather because of the unit distance. More laser energy and let The international marking pattern 92 looks like a match head, and the actual marking pattern 92 with a match head shape makes the boundary of the section particularly obvious when marking in zones, so it is easy to cause the entire picture to have defects in the connection part. .

In addition, because the control card sends a command that is not synchronized with the actual action of the galvanometer module (not shown in Figure 1), and the servo is backward and the laser switch is backward, the marking cannot reach the target position. The processed gaps result in obvious joint seams. For example, it is expected that at the starting point of the marking pattern 90, the servo backward causes the galvanometer module to arrive late, making the marking starting point 91S. It is more forward than the expected starting point of the marking pattern 90, and more often occurs that the laser light is too slow than the servo backward; while the laser source trajectory 91E is later than the expected end of the marking pattern 90, the target starting point is not processed; At the end point, the servo-off causes the actual light-off point to go forward, and the laser-off-light lags behind to cause the actual light-off point to go backward, while the laser-off light is usually faster than the servo backward, and the actual light-off point is more than the command to turn off the light. The point is more forward, and the end of the target is not processed.

Furthermore, another conventional technique is the image stitching marking method, as shown in FIG. 2, which is a schematic diagram of the traditional laser marking machine using the stitching method for marking. When the user proposes the expected marking pattern 98 The control card inside the laser marking machine will split the expected marking pattern 98 into two parts, namely the first marking pattern 98A and the second marking pattern 98B. During the actual marking process, the laser source The first part of the laser source trajectory 99A and the second part of the laser source trajectory 99B will be formed on the workpiece according to the first part 98A of the expected marking pattern and the second part 98B of the expected marking pattern, where the two have an overlapping part of the laser source trajectory 99C. This laser source trajectory overlap part 99C will perform two laser markings to make the unclear places in the original marking process twice to make it clearer, and finally to form the actual marking pattern 99, this method The laser source trajectory overlap part is used to join the partition graphics to make the marking clear. However, the laser source trajectory overlap part 99C is easy to be misaligned. Therefore, the laser source trajectory overlap part 99C is easy to be connected to the wrong drawing and marking errors. When processing the acceleration and deceleration start and end points, the match head pattern indicated by the actual marking pattern 92 in FIG. 1 is prone to occur at the overlapping portion of the laser source trajectory 99C.

In view of the lack of the above-mentioned conventional technologies, the main purpose of the present invention is to use laser marking zone joining device, which can not only correct the zone marking image through repeated zone marking, but also use a visual device to determine the zone marking by a computer. The good and bad of the target image, greatly reducing the error of human judgment Poor, the data of the galvanometer module is taken into consideration during the correction, and interpolation is performed to take into account the preset value to avoid drawing errors and marking errors.

Another object of the present invention is to use the laser marking division joining device provided by the present invention, which can feedback the judgment result of the division marking image in real time, and the user can adjust the marking division marking in real time by inputting request data according to the warning signal The target image can be adjusted immediately without waiting for the entire marking image to be completed.

Another object of the present invention is to use the laser marking partition joining method proposed by the present invention, by adding a plurality of moving node extensions that do not turn on the original multiple marking nodes, not only can maintain the original partition marking The laser source device moves at the same speed and prevents the match head phenomenon caused by the original zone marking.

Therefore, according to the above object, the present invention discloses a laser marking zone joining device, which includes a laser marking device, a laser source device, and a vision device. The laser marking device has a user interface for drawing graphics and importing. After requesting data, the computing module outputs readable data according to the graphics and request data, the galvanometer module is used to drive the laser source device, the controller module receives the readable data and the galvanometer data transmitted by the galvanometer module, and then The readable data and the galvanometer data transmitted by the galvanometer module are interpolated to obtain preset image parameter values. The laser source device, after receiving the preset image parameter parameters, performs zone marking on the workpiece.

According to the above object, the present invention further provides a laser marking partition joining method, which includes: obtaining a first partition of a graph; planning a plurality of first marking nodes according to the first partition of the graph, and determining the number of first marking nodes. The starting point of the constant velocity segment and the end of the first velocity segment; assign the first marking node to the coordinate value and energy value; interpolate the coordinate value of the first marking node given the coordinate value and energy value and the galvanometer module to Obtain a preset value of the first picture-taking parameter; the laser source device marks the workpiece in the first zone according to the preset value of the first picture-taking parameter; obtain another zone of the figure, and plan multiple according to the other zone of the picture The second marking node and decides one of the second marking nodes The starting point of the constant velocity segment and the ending point of the first velocity segment, and the coordinate value and energy value are assigned to the second marking node, wherein the starting point of the constant velocity segment in the second marking node and the ending point of the constant velocity segment in the first marking node The coordinate values are the same; the second marking node with the coordinate value and the energy value is interpolated with the coordinate value of the galvanometer module to obtain the preset value of the second picture connection parameter; and the laser source device according to the second picture connection parameter The preset value is used to mark another partition.

1‧‧‧Laser marking zone joining device

100‧‧‧The first zone is expected to be marked

102‧‧‧Actual marking pattern for the first zone

11‧‧‧laser marking device

111‧‧‧user interface

112‧‧‧ Computing Module

1121‧‧‧Path Planning Module

1122‧‧‧ Energy Computing Module

113‧‧‧controller module

1131‧‧‧Interpolation calculation module

1132‧‧‧Command output module

114‧‧‧ Galvanometer Module

12‧‧‧ visual device

121‧‧‧Image capture module

122‧‧‧Image Comparison Module

1221‧‧‧Image Processing Module

1222‧‧‧Identification Module

1223‧‧‧Comparison Module

1223A‧‧‧Database

13‧‧‧laser source device

9, 14‧‧‧ Workpieces

14A‧‧‧Marking node, first marking node, second marking node

14B‧‧‧ Mobile Node

14C‧‧‧ The beginning of the isokinetic segment

14D‧‧‧ End of isokinetic segment

14S‧‧‧Acceleration section

14M‧‧‧ constant speed section

14E‧‧‧Deceleration section

t‧‧‧distance

90‧‧‧Expected marking pattern

98‧‧‧Expected marking pattern

98A‧‧‧Expected Marking Part I

98B‧‧‧Expected Marking Part 2

91‧‧‧Laser source trajectory

91S‧‧‧Marking starting point

91E‧‧‧Marking end point

92‧‧‧Actual marking pattern

99‧‧‧Actual marking pattern

99A‧‧‧Laser Source Trajectory Part 1

99B‧‧‧Laser Source Trajectory Part 2

99C‧‧‧Laser source trajectory overlap

F1 ~ F10‧‧‧Laser marking method

Figure 1 is a schematic diagram showing the trajectory of a laser source on the workpiece when the traditional laser marking machine is used for marking; Figure 2 is a schematic diagram showing the traditional laser marking machine using a splicing method to mark; The technology disclosed in the invention shows a schematic diagram of the laser marking zone joining device and internal components provided by the present invention; FIG. 4 is a view of the technology disclosed in the present invention, showing the laser marking zone joining device provided by the present invention Schematic diagram of zone marking; Figure 5 is a schematic diagram of another embodiment of the laser marking zone joining device provided by the present invention when zone marking is performed according to the technology disclosed in the present invention; Figures 6A to 6 6D is a schematic diagram of a marking node during the operation of the laser marking sub-area joining method provided by the present invention according to the technology disclosed in the present invention; and FIG. 7 is a view showing the technology provided by the present invention and showing the provision provided by the present invention. Flow chart of the execution steps of the laser marking partition joining method.

In order to allow your reviewers to further understand and agree on the structural purpose and effect of the present invention, the detailed description is given below in conjunction with the illustrations. The following will describe the technical means and effects used to achieve the purpose of the present invention with reference to the drawings, and the examples listed in the following drawings are only for the purpose of explanation, for the benefit of the review members, but the technical means in this case are not limited to the listed Schema.

First, please refer to FIG. 3, which is a schematic diagram of the internal components of the laser marking zone joining device 1 provided by the present invention. The laser marking zone joining device 1 is used to perform zone marking on the workpiece 14, and includes a laser marking device 11, a vision device 12, and a laser source device 13. The laser marking zone joining device 1 may be a casing (not shown) for covering the laser marking device 11, the vision device 12, and the laser source device 13, the laser marking device 11, and the vision device. Both the laser source device 12 and the laser source device 13 are arranged in a module in the housing of the laser marking sub-area device 1. These devices may be space independent, but the three devices are electrically connected. In addition, the laser source device 13 is electrically connected to the workpiece 14 wirelessly, and the vision device 12 is electrically connected to the workpiece 14. In the embodiment of the present invention, the laser marking device 11 is used to drive the laser source device 13. The laser source device 13 receives the preset parameters of the image connection parameters transmitted by the laser marking device 11 and then sets the workpiece 14 on the workpiece 14. Zone marking is performed on the camera. The vision device 12 is used to capture the zone marking image on the workpiece 14 and perform comparison, so as to return the discrimination result of the compared image to the laser marking device 11 for laser marking. The detailed operation of the device 11, the vision device 12, and the laser source device 13 on the workpiece 14 is as follows.

After the user turns on the laser marking sub-area joining device 1, the figure will be drawn first, and the laser marking sub-area joining device 1 will follow the figure and the request data from the laser marking device 11 in The first division marking is performed on the workpiece 14. In the present invention, the division marking refers to transferring a certain region of the figure to the workpiece 14 by means of laser transfer. In one embodiment of the present invention, If the graphic is an English word "Word", the laser marking partition joining device 1 will divide the graphic with Word into two partitions, the first partition is "Wor" and the second partition is "rd", This laser marking zone joining device 1 performs "Wor" on the workpiece 14 for the first zone. Marking, the time for marking the first partition is defined as the first time in this embodiment; at the next time, that is, the second time, "rd" marking is performed on the workpiece 14 for the second partition. It should be noted here that, for graphics, the number of partitions on the graphics is not within the scope of the present invention. How the graphics are partitioned can also be defined by the user. Therefore, in another embodiment, for English words The first partition of "Word" can be "Wo" and the second partition can be "ord". The principle of partitioning is that there should be repeated characters or graphics between the first partition and the second partition; as mentioned above In the embodiment, the first partition is "Wor" and the second partition is "rd", and the repeated characters or graphics between the two are "r"; in another embodiment, the first partition is "" Wo "and the second partition is" ord ", the repeated characters or graphics between the two are" o ".

After the first division is marked on the workpiece 14, the vision device 12 in the laser marking division joining device 1 compares the marking image on the workpiece with a predetermined image stored in the vision device, and The image discrimination result obtained after the comparison is returned to the laser marking device 11. At this time, the laser marking device 11 will issue a warning message. This warning message includes a normal prompt, a leak prompt and a match head prompt. This warning message can be It is a kind of light signal. For example, the normal prompt is a continuous flashing green light, the missed prompt is a continuous flashing yellow light, and the match head prompts a continuous flashing red light. The user can submit the requested data to the laser marking device 11 at the next time according to the content of the warning message. In one embodiment, when the warning message received by the user is a normal prompt, it means that the image discrimination result is that the marking pattern is consistent with the actual pattern, and a request to continue to work is made to the laser marking partition joining device 1 Data; in another embodiment, when the warning message received by the user is a missed reminder, it means that there are some characters between the marking pattern and the actual pattern or the pattern is defective and cannot be connected. At this time, it will report to The laser marking zone joining device 1 proposes request data for increasing the laser energy. In another embodiment, when the warning message received by the user is a match head prompt, it indicates that the laser energy applied is excessive and the marking pattern is caused. Larger than the actual pattern, a match head pattern will appear in the marking pattern. At this time, a reduction will be proposed to the laser marking zone joining device 1. Laser energy request data, after submitting the request data to the laser marking zone joining device 1 multiple times, if the user has received a normal prompt, and after submitting the request information to the laser marking zone joining device 1 to continue working , The above-mentioned adjustment procedure can be ended, and the laser marking partition joining device 1 will then operate by itself to complete the overall marking image of the graphic "Word", that is, the first partition "Wor" and the second partition in "Word" "Rd" completes the joining, which is the so-called partition joining.

Please refer to FIG. 4. FIG. 4 shows a schematic diagram of the laser marking zone joining device 1 provided by the present invention when performing zone marking. It should be noted that, in the present invention, all the components of the laser marking sub-area joining device 1 are not shown in FIG. 4, and only the elements related to this embodiment are shown. The laser marking device 11 has a user interface 111, a computing module 112, a controller module 113, and a galvanometer module 114. The user interface 111 is used for a user to draw graphics and import request data. In the present invention, In one embodiment, the user interface 111 is composed of a touch screen and a software graphical interface (GUI). The user can directly draw the marking track that he wants to achieve on the user interface 111 to form a graphic. Alternatively, after the graphics are drawn on other terminal devices in advance, the graphics are input to the laser marking device 11 through the user interface 111. In addition, the import request data refers to the parameters that the user needs to use when marking some partitions and inputs them to the laser marking device 11 through the user interface 111. These parameters are, for example, the amount of laser energy or the marking time. Etc .; the operation module 112 outputs readable data according to the above graphics and import request data. The "readable" in this readable data refers to the readable data format of the controller module 113. .

Please continue to refer to FIG. 4. The computing module 112 has a path planning module 1121 and an energy computing module 1122. The path planning module 1121 is used to plan a plurality of marking nodes when the laser source device 13 performs zone marking (FIG. 4 (Not shown), each of the marking nodes corresponds to a coordinate. For example, when the graph is a circle, the path planning module 1121 will disassemble the circle into 20 nodes with a distance of at least 1 mm between the nodes and use the center of the circle as the origin. According to the XY coordinate system , Give these 20 nodes a specific coordinate value, and define these 20 nodes respectively, for example, the first node is A ₁ (1,0) and the second node is A ₂ (2,0 ), And so on until the 20th node is A ₂₀ (20,0), which is used by the laser source device 13 for zoning marking. The coordinate value is a graphic coordinate system, which is a card type. The XY coordinate system of the coordinate system is defined. The origin is the centroid of the figure. The energy calculation module 1122 is used to arrange the energy value array of the marking node 14A, and the coordinates and the energy value array of the marking node 14A are packed and packed. It is to form a packet into the readable data of the controller module 113 and transmit the readable data to the controller module 113. In the embodiment of the present invention, the readable data may be a numerical control code, that is, NC code, the so-called numerical control code is the control data required by the user, such as: The spindle speed, processing conditions, and workpiece size are made into a series of numerical instructions and input into the controller to form data readable by a CNC machine to control the operation of the machine. The energy value array of the marking node 14A can be a 5 * 5 matrix. In this array, each element is arranged in the order of the path planning module 1121, from left to right and from top to bottom. Each element represents a laser energy value, which represents the laser energy required by this particular node.

Please continue to refer to FIG. 4, the controller module 113 in the laser marking device 11 further includes an interpolation calculation module 1131 and a command output module 1132. The controller module 113 receives the readable data transmitted by the energy calculation module 1122 and the galvanometer data transmitted by the galvanometer module 114, and then uses the interpolation calculation module 1131 to transmit the readable data and the galvanometer module 114 transmitted. After performing the interpolation operation on the galvanometer data, a preset value of the picture connection parameter is obtained, and then the command output module 1132 is used to transmit the preset value of the picture connection parameter to the laser source device 13. After the laser source device 13 receives the preset value of the drawing parameter, it emits laser light according to the preset value of the drawing parameter, and performs zone marking on the workpiece 14. It should be noted that the preset values of the drawing parameters are formed by referring to the data set by the original user and the galvanometer data of the galvanometer module 114 and the laser source device 13, so the accuracy of zone marking is improved.

The galvanometer module 114 in the laser marking device 11 is used to drive the laser source device 13. The galvanometer module 114 has the same structure as the conventional laser marking machine and has a galvanometer motor (not shown) And galvanometer lens (not shown). The galvanometer module 114 still has some initial values (preset value / default) when zone marking is not performed, such as the original position of the galvanometer motor and the galvanometer lens; there will be processing after the marking or after the marking Process values, such as galvanometer motors and galvanometer lenses at different positions at different times during marking. These initial values and processed values constitute so-called galvanometer data. In different times of marking, adding the galvanometer data can dynamically adjust the marking so that the marking points can better meet the needs of the user.

Please refer to FIG. 5. FIG. 5 is a schematic diagram of another embodiment of the laser marking zone joining device 1 provided by the present invention when performing zone marking. Similarly, FIG. 5 only shows some components of the laser marking device 11. In this embodiment, the vision device 12 includes an image capturing module 121 and an image comparison module 122. The image capturing module 121 captures the partitioned marking image formed by the laser source device 13 after marking on the workpiece 14, and compares it through the image comparison module 122, and returns the image discrimination result to the user Interface 111, in which the time when the vision device 12 captures the zone marking image formed by the laser source device 13 on the workpiece 14 may be the real-time capture of the zone marking image when the first zone marking is performed, or It is only after the first zone marking is completed that the zone marking image is captured. The time for capturing the zone marking image is not within the scope of the present invention. The zone marking image can be performed as long as the zone marking is performed. Capture. In this embodiment, the image capturing module 121 may be an image sensor, such as a CCD array, an MMOS array, or a photodiode array, such as a machine or device that can capture images. In addition, the partition marking image can be a graphic file, for example, a graphic file with a file extension of jpg, tif, png, or bmp.

Please continue to refer to FIG. 5. The image comparison module 122 further includes an image processing module 1221, an identification module 1222, and a comparison module 1223. The comparison module 1223 further includes a database 1223A. The image processing module 1221 in FIG. 5 processes the area marking image into a readable by the identification module 1222. (readable) data format, which is called identifiable data. For example, the image processing module 1221 converts a graphic file (* .jpg) with the extension jpg into a set of binary number arrays with coordinates to facilitate the image. The comparison module 122 performs comparison. The image processing module 1221 sends the converted identifiable data to the identification module 1222. The identification module 1222 is used to determine the judgment area in the identifiable data, and the judgment is performed. The area is sent to the comparison module 1223 for comparison. As described in the conventional technology, the match head image and the part to be joined in the marking image almost appear at the edge of the marking image, occupying only a part of the marking image. Therefore, in the present invention, the identification mode The determination method of group 1222 extracts the judgment area that needs to be processed from the identifiable data (the content of the zone marking image is still retained, compared to the zone marking image, but the data format is changed), so as to effectively use the laser marking. The marking zone joins the resources in the device 1 and saves the time of laser marking. After the identification module 1222 sends the determination area to the comparison module 1223, the comparison module 1223 compares the determination area with a predetermined image in the database 1223A in the comparison module 1223. The comparison method is that the database 1223A will call the relevant data in a specific coordinate in the judgment area, for example, the radius of the marking point is called first, and then the relevant data on the predetermined image of the specific coordinate is called, for example, yes Marking point coordinates. Subsequently, the radius of the marking point in the judgment area under the same coordinate is subtracted from the radius of the marking point on the predetermined image. If the subtracted value is greater than or equal to 1, it means that the judgment area is equal to the predetermined image. Match; if the value after subtraction is less than 1, it means that the judgment area is smaller than the predetermined image, and the output is distorted. Here, the predetermined image is a standard image. Generally, the user will store the standard image of the graphic to be provided in the database 1223A through the laser marking partition joining device 1 in advance to provide the comparison module 1223. It is determined whether the determination area coincides with a predetermined image. The database 1223A can be a memory for storing a plurality of predetermined images.

Please continue to refer to FIG. 5, after the comparison module 1223 compares the relevant data of each coordinate in the judgment area with the relevant data of the predetermined image one by one, the visual device 12 returns the image discrimination result to the user interface 111. After the user interface 111 receives the image discrimination result, it will issue a warning Message to remind the user to judge the result. This warning message includes normal prompt, missed prompt and match head prompt. In this embodiment, if the image discrimination result has 50 or more matches, the warning message is a normal prompt; if the image discrimination result has no more than 50 matches, the warning message is a matchhead prompt; If there is any distortion in the image discrimination result, the warning message is a missed reminder, but the number of image discrimination results is not limited to 50, and a critical value can be set by oneself. When the user receives the warning message, the content of the requested data will be adjusted according to the content of the warning message; when the normal prompt is not received, the user will repeatedly adjust the request data until a normal prompt is obtained; when the user receives the normal prompt When prompted, an automatic prompt will be entered in the request data, and the laser marking zone joining device 1 will automatically start running at this time to transfer all the graphics to the workpiece 14.

The laser marking zone joining device 1 proposed by the present invention can not only correct the zone marking image through repeated zone marking, but also judge the quality of the zone marking image by the computer through the visual device 12, thereby greatly reducing human judgment. For the error, the data of the galvanometer module 114 is taken into consideration during the correction, and the interpolation operation is performed to take into account the preset value to avoid connection errors. More importantly, this device can feedback the judgment result of the zone marking image in real time, and the user can adjust the marking zone marking image according to the input signal of the warning signal in real time, without waiting for the entire marking image to be completed. It can be adjusted instantly, so it has deep industrial applicability.

Subsequently, the present invention provides a laser marking partition joining method. Please refer to FIG. 4, FIG. 5, and FIGS. 6A to 6D. FIGS. 6A to 6D show schematic diagrams of the marking nodes during the laser marking partition joining method provided by the present invention. Among them, FIG. 6A is a subdivision of the graphic input by the user interface 111, that is, the first subdivision is expected to be marked with a pattern 100, and FIG. 6B is a coordinate diagram of a plurality of marking nodes 14A planned by the path planning module 1121. FIG. 6C is a coordinate diagram of a plurality of marking nodes 14A after interpolation calculation by the interpolation calculation module 1131, and FIG. 6D is a partition marking image captured by the image capturing module 121. First, the path planning module 1121 plans a partition of the graph input by the user interface 111 according to the user of FIG. 6A, for example, the first partition to generate a plurality of marking nodes 14A. Each marking node 14A generated at this time is equidistant. The distance is t, and generally t is 3mm. The purpose of equidistance is to allow the laser source device 13 to move at the same speed during the marking movement. The multiple nodes generated in the path planning module 1121 are in the constant velocity segment 14M, and the path planning module 1121 determines the constant velocity segment starting point 14C and the constant velocity segment end 14D in the same velocity segment 14M to facilitate subsequent connection. Figure with. After the subsequent marking nodes 14A are arranged by the energy calculation module 1122, each of the marking nodes 14A has an energy value to remind the laser source device 13 that a specific marking node 14A needs to generate a specific energy value of output power . After the interpolation calculation module 1131 in the subsequent controller module 113 receives the relevant data of each marking node 14A with an energy value, according to the current coordinate value of the galvanometer module 114 and the constant velocity segment 14M where multiple nodes are located The starting point and ending point are interpolated. The so-called interpolation refers to inserting a value that is not in the data generated by the path planning module 1121. The interpolation calculation module 1131 will first capture the current coordinate value of the galvanometer module 114, and then insert multiple moving nodes 14B before the current coordinate value of the galvanometer module and the constant velocity segment start 14C and after the constant velocity segment end 14D. The laser source device 13 and the galvanometer module 114 are aligned. At this time, each moving node 14B is not equidistant, because when the galvanometer module 114 accelerates from stationary to the constant velocity section 14M, that is, acceleration occurs during the acceleration section 14S, and the galvanometer module 114 decelerates to stationary. At that time, acceleration will also occur during the deceleration section 14E, so in the acceleration section 14S and the deceleration section 14E, two adjacent moving nodes 14B are not equidistant. In a specific embodiment of the present invention, the galvanometer module 114 performs equal acceleration motion in the acceleration section 14S and the deceleration section 14E. Furthermore, the galvanometer module 114 performs 2km / s ² in the acceleration section 14S. For constant acceleration, a constant acceleration of -2 km / s ² is performed in the deceleration section 14E. During marking, the laser source device 13 in the acceleration section 14S and the deceleration section 14E is in a light-off state. This light-off state means that the laser source device 13 does not emit laser light. At this time, the acceleration section 14S and The deceleration section 14E is only used for the alignment of the galvanometer module 114 and the laser source device 13, so the moving node 14B is indicated by a white circle. Finally, after the interpolation operation module 112 obtains the preset value of the picture connection parameter, the command output module 1132 transmits the preset value of the picture connection parameter to the laser source device 13 for the laser source device 13 to perform partition printing on the workpiece 14. Mark.

FIG. 6D shows the partition marking image captured by the image capturing module 121. It can be seen from FIG. 6D that the actual marking pattern 102 of the first partition on the workpiece 14 is the same as the expected marking pattern 100 of the first partition, and there is no match head at the two ends of the actual marking pattern 102 of the first partition. image. In addition, FIG. 6A only shows the first partition of the graphic. When other partitions of the graphic are to be completed in the future, such as the second partition or the third partition, the drawing process can be performed, or the above process can be followed. In the process of the drawing, the starting point 14C of the constant velocity segment in the second partition in FIG. 6C must be aligned with the end point 14D of the constant velocity segment in the first partition to facilitate the completion of the drawing step.

Finally, please refer to FIG. 7. FIG. 7 shows a flowchart of a method for performing a laser marking partition joining device 1 provided by the present invention. The steps are detailed below, and please refer to FIG. 3 to FIG. 6D together: Step F1: Obtain the graphic First partition. Generally speaking, after a user inputs a graphic through the user interface 111 in the laser marking partition joining device 1 shown in FIG. 4 described above, the computing module 112 in the laser marking partition joining device 1 inputs the graphics. The image is image-processed, and this graphic is divided into six equal areas. In the present invention, the number and area of the partitions are not limited, and may be two partitions, three partitions, or nine partitions, as long as the number of partitions is an integer. The six partitions are respectively numbered into the first to sixth partitions. The order of the numbers is not a limitation of the present invention. Followed by step F2.

Step F2: According to the first partition of the graph, plan a plurality of first marking nodes 14A, and determine the constant velocity segment starting point 14C and the constant velocity segment end 14D among the plurality of first marking nodes 14A. The planning result is as shown in FIG. 6C, and the planning is performed via the path planning module 1121 in the laser marking zone joining device 1 shown in FIG. 4 described above. Followed by step F3.

Step F3: Assign a plurality of first marking nodes 14A to the corresponding coordinate values and energy values. Endowment means to add a data format that does not exist to the original data to become a new data format. In this specific implementation manner, the plurality of first marking nodes 14A are only gray-scale data. For example, if a certain first marking node 14A is black, the point data is presented (255,0), and then the above is passed through the above. The energy calculation module 1122 in the laser marking zone joining device 1 shown in FIG. 4 adds a plurality of first marking nodes 14A with coordinate values and energy values, for example, changes the point data to (255, 0, 1,2,100) to change the data format at this point. The coordinate value is a graphic coordinate system. This coordinate system is defined by the X-Y coordinate system of the card-type coordinate system, and the origin is at the center of the figure. Followed by step F4.

Step F4: Interpolate the coordinate values of the plurality of first marking nodes 14A with the coordinate value and the energy value with the galvanometer module 114 to obtain a preset value of the first picture connection parameter. The interpolation operation is performed by the path planning module 1121 in the laser marking partition joining device 1 shown in FIG. 4, and the definition of the interpolation operation is as described in the foregoing description of FIG. 6C. The results after interpolation are shown in Figure 6C. Steps F2 to F4 are completely processed for the first partition. Followed by step F5.

Step F5: The laser source device 13 performs the first division marking on the workpiece 14 according to the preset value of the first picture-taking parameter. Followed by step F6.

Step F6: Obtain another partition of the graph, and plan a plurality of second marking nodes 14A according to the other partition of the graph, and determine the constant velocity segment starting point 14C and the constant velocity segment ending point in the plurality of second marking nodes 14A. 14D, and assign a plurality of second marking nodes 14A to the corresponding coordinate values and energy values, among which the constant velocity segment starting point 14C in the plurality of second marking nodes 14A and the constant velocity segment end point in the first marking node 14A The 14D coordinates must be the same. The so-called other partition refers to another partition except the first partition in the drawing. The computing module 112 in the laser-marking partition joining device 1 shown in FIG. 4 can select which partition is another partition. In this embodiment, it is specified that the second partition in this figure is another partition. In addition, in step F6, planning is performed by the path planning module 1121 in the laser marking partition joining device 1 shown in FIG. 4. It should be noted that a plurality of In the coordinates of the second marking node 14A, the coordinates of the starting point 14C of the constant velocity segment in the plurality of second marking nodes 14A and the ending point 14D of the constant velocity segment in the plurality of first marking nodes 14A are the same, so that the laser Only the source device 13 can stitch the multiple partitions to complete the overall marking. Followed by step F7.

Step F7: Interpolate the coordinate values of the plurality of second marking nodes 14A having the coordinate value and the energy value with the galvanometer module 114 to obtain the preset value of the second connection parameter, the definition of the interpolation operation and the device used As described in step F4. Followed by step F8.

Step F8: The laser source device 13 performs another zone marking according to the preset value of the second image connection parameter. Followed by step F9.

Step F9: Determine whether partition marking has been completed. This step is to determine whether the overall pattern has completed the overall laser marking. This step is determined by the image comparison module 122 in the laser marking joining device shown in FIG. 5. If yes, go to step F10; if no, go back to step F6.

Step F10: End this process.

By using the laser marking partition joining method proposed by the present invention, the original multiple marking nodes 14A are added with a plurality of moving nodes 14B extensions that are not turned on, so that the original laser source device 13 can be maintained during the original partition marking. Constant speed movement, and prevent the match head graphics caused by the original zone marking. In the subsequent marking of multiple zones, that is, when performing the drawing step, the end point 14D of the constant velocity section of the first section can be completely connected with the starting point 14C of the constant velocity section of the second section, so that the result of the drawing completely matches the original user. The provided graphics reduce the time for repeatedly trimming the partition marking graphics and reduce the waste of light from the laser source device 13, and reduce the phenomenon of incorrect graphic sizes caused by the laser command lagging behind the servo command, so it has both convenience and practicability.

Although the above-mentioned preferred embodiment is disclosed as above, it is not intended to limit the creation. Any person skilled in the art can make some changes and decorations without departing from the spirit and scope of the creation. The scope of patent protection of this creation shall be determined by the scope of the patent application attached to this specification.

Claims (10)

A laser marking division bonding device is used for performing a zone marking on a workpiece, and includes a laser marking device, a laser source device and a vision device, wherein the laser marking device is used to drive the laser marking device. The laser source device is characterized in that: the laser marking device has a user interface for drawing a graphic and importing a request data; an operation module outputs a readable data according to the graphic and the request data, And the computing module also has a path planning module, which is used to plan multiple coordinates of multiple marking nodes when the laser source device performs the zone marking; a galvanometer module is used to Drive the laser source device; after a controller module receives the readable data and a galvanometer data transmitted by the galvanometer module, the controller module receives the readable data and the galvanometer data transmitted by the galvanometer module Performing an interpolation operation to obtain a preset value of the picture-taking parameter; the laser source device, after receiving the picture-setting parameter preset value, performs the zone marking on the workpiece; and the vision device has an image capture Taking a module and an image comparison module, The image capture module for capturing a partition on the workpiece marking image, and comparison module to compare the image transmission, an image to return to the user interface determination result. The laser marking partition joining device according to claim 1, wherein the computing module further has an energy computing module, the energy computing module is used to arrange an energy value array of the marking nodes, and The coordinates of the marking nodes and the energy value array are packaged into the readable data and transmitted to the controller module. The laser marking partition joining device according to claim 1 or 2, wherein the controller module further has an interpolation calculation module and a command output module, and the interpolation calculation module performs the interpolation operation to obtain The picture connection parameter preset value, and the command output module is used to transmit the picture connection parameter preset value. The laser marking area joining device according to claim 2, wherein the readable data includes a numerical control code. The laser marking partition joining device according to claim 1, wherein the image comparison module further includes an image processing module, an identification module, and a comparison module, wherein the image processing module divides the partition The marking image is processed into identifiable data; the identification module is used to determine a determination area in the identifiable data, and the determination area is transmitted to the comparison module for comparison. The laser marking partition joining device according to claim 5, wherein the interpolation calculation module is used to insert a plurality of values not included in the data generated by the path planning module. The laser marking partition joining device according to claim 6, wherein the values include a current coordinate value of a galvanometer module, an acceleration segment, a deceleration segment, and a plurality of the acceleration segment and the deceleration segment. Mobile nodes. The laser marking zone joining device according to claim 1, wherein when the zone marking is performed, the laser source device is in a light-off state at an acceleration stage and a deceleration stage. The laser marking partition joining device according to claim 1, wherein the image capture module compares the determination area with a predetermined image in a database in the comparison module. A laser marking partition joining method, the steps include: obtaining a first partition of a graph; planning a plurality of first marking nodes according to the first partition of the graph, and determining among the first marking nodes Start of the first-speed segment and end of the first-speed segment; assign the first marking nodes to a target value and an energy value; assign the coordinate values and the energy value to the first marking nodes and the vibration One target value of the mirror module is subjected to an interpolation operation to obtain a preset value of the first picture connection parameter; a laser source device performs a first partition marking on a workpiece according to the first picture connection parameter preset value; Obtain another partition of the graph, and according to the other partition of the graph, plan a plurality of second marking nodes, and determine the start point and the end point of the first velocity segment in the second marking nodes And assign the second marking nodes a marking value and an energy value, wherein the starting points of the speed segments in the second marking nodes and the ending points of the speed segments in the first marking nodes The coordinate value is the same; it will have the coordinate value and the energy The second marking nodes of the value and the coordinate value of the galvanometer module to perform the interpolation operation to obtain a preset value of the second picture connection parameter; and Set the value to mark another zone.