Utility model content
The technical problems to be solved in the utility model is the defect overcoming prior art to exist, it is provided that even if the thickness of a kind of materials to be clipped changes, and also can guarantee that cutting is efficient and distortionless numerical control cutter.
This utility model is to solve above-mentioned technical problem by following technical proposals: a kind of numerical control cutter, including Cutting table, cutting head, would indicate that the projection arrangement of the image projection of the cutting information materials to be clipped to Cutting table, detection device, data processing equipment, control device and correcting unit, described detection device is connected with described data processing equipment, described data processing equipment is connected with described control device, and described control device is connected with described correcting unit;Wherein, described detection device is for measuring the one-tenth-value thickness 1/10 of materials to be clipped, and the one-tenth-value thickness 1/10 of described materials to be clipped is sent to data processing equipment;Described data processing equipment is used for comparing the one-tenth-value thickness 1/10 detecting the materials to be clipped that measurement device obtains with its preset thickness value, and comparative result is sent to control device;Described control device gives described correcting unit according to described comparative result transfer control instruction;Described correcting unit completes the dimension correction to the image being projected, so that unrelated and constant by the size of the image of projection device and the thickness of materials to be clipped.
Further, described correcting unit is a lowering or hoisting gear, for driving rising or the decline of described projection arrangement.
Further, described correcting unit is the graphics processing unit making to zoom in or out to the source images of projection arrangement supply.
Further, described correcting unit is provided at the zoom mechanism of described projection arrangement.
Further, described detection device is laser ranging system.
Further, described detection device is arranged on cutting head.
Further, described detection device is arranged on projection arrangement and faces the side of Cutting table.
Compared with prior art, this utility model one numerical control cutter is by arranging detection device, data processing equipment, control device and correcting unit, achieve the intelligent zero offset capability of numerical control cutter, such that it is able to efficiently solve during cutting owing to the thickness of materials to be clipped changes the cutting pattern of the projection device caused and the actual different cutting problem of dtmf distortion DTMF caused of cutting pattern, promote the precision of cutting, the most whole trimming process is all automatically to perform, and improves the efficiency of cutting.
Detailed description of the invention
Refer to shown in Fig. 1 and Fig. 2, this utility model numerical control cutter includes main frame 1, Cutting table 2, cutting head 3, would indicate that the projection arrangement 4 of the image projection of the cutting information materials to be clipped to Cutting table, detection device 5, data processing equipment 6, controls device 7 and correcting unit 8.Described detection device 5 is connected with described data processing equipment 6, and described data processing equipment 6 is connected with described control device 7, and described control device 7 is connected with described correcting unit 8;Wherein, described detection device 6 is for measuring the one-tenth-value thickness 1/10 of materials to be clipped, and the one-tenth-value thickness 1/10 of described materials to be clipped is sent to data processing equipment 7;Described data processing equipment 7 is used for measuring detection device 5 one-tenth-value thickness 1/10 of the materials to be clipped obtained and compares with its preset thickness value, and comparative result is sent to control device 7;Described control device 7 gives described correcting unit 8 according to described comparative result transfer control instruction;Described correcting unit 8 completes the dimension correction to the image being projected, so that the size of the image projected by projection arrangement 4 is unrelated and constant with the thickness of materials to be clipped.In the present embodiment, described detection device 5 is laser ranging system.As long as the position that described detection device 5 is arranged can conveniently detect the thickness of materials to be clipped, such as can be arranged on cutting head 3 fixing relative to Cutting table position Anywhere, the projection arrangement 4 side towards Cutting table 2 can also be arranged on, it is also possible to be arranged on the crossbeam side relative to Cutting table;Described data processing equipment 6 can be integrated in described main frame 1 with the function of described control device 7, can certainly be separately provided, the form of described correcting unit 8 also has multiple choices, it can be such as the lowering or hoisting gear directly driving projection arrangement 4 to move up and down, can also be the graphics processing unit making to zoom in or out to the source images of projection arrangement 4 supply, it is also possible to be provided at the zoom mechanism of described projection arrangement 4.
Be can be directly to illustrate as a example by the driving lowering or hoisting gear that moves up and down of projection arrangement 4 by correction unit 8 below.Described main frame 1 generates the source image data of cutting information, and the source image data of cutting information includes the data such as the initial point of configuration based on the pattern wanting cutting, beginning cutting.The source image data of cutting information is transmitted to projection arrangement 4 by main frame 1, projection arrangement 4 is provided with lowering or hoisting gear, this lowering or hoisting gear includes support bar 41 and driver 42, described projection arrangement 4 is arranged along described support bar 41, driven by driver 42 and move up and down along support bar 41, the kind of driver 42 is arbitrary, such as, use ball-screw.Projection arrangement 4 can be that colour can also be set to the projection arrangement employing tight shot of colour but it also may be set to employ the projection arrangement of zoom lens for monochrome in the present embodiment.The image of cutting information is projected on Cutting table 2 by projection arrangement 4.12 is guidance panel, displays that the image of the cutting information projected from projection arrangement 4 on guidance panel 12, when on guidance panel 12, operator drags this image, moves similarly from the image of projection arrangement 4 projection on Cutting table 2.Generally employing color video monitor etc. are as guidance panel 12.In addition image can also be made while observing the image being projected on materials to be clipped to move by hand-held control device.The image of so-called cutting information, refers to represent the shape of each cut-parts of cutting and the image of configuration or represent the image of the position relative to materials to be clipped of datum mark, the line segment of length direction of materials to be clipped, the points etc. such as cutting starting point.And operator operates the image of cutting information on guidance panel 12, and confirm on Cutting table 2, the position of each garment piece of the most easy to operate inspection cutting, the datum mark etc. of beginning cutting.Additionally can also replace projection arrangement 4 that laser projection device etc. is set, should in the case of by by laser beam projection in materials to be clipped, and show the image of cutting information.The source image data of the cutting information in main frame 1 is also the data of the operation of the path of cutting head 3 and cutter simultaneously.Cutting head 3 XY two direction along Fig. 2 on Cutting table 2 is moved, and 31 is crossbeam, makes cutting head 3 move along Y-direction.Cutting head 3 is moved in X direction by not shown endless belt etc..
Fig. 3 is the workflow diagram from dynamic(al) correction of this utility model numerical control cutter, and job step is specific as follows:
Step 401, detection device detects the one-tenth-value thickness 1/10 of materials to be clipped automatically.
Specifically, materials to be clipped is layered on Cutting table 2 by present embodiment, the source images of the cutting information completed is transmitted to projection arrangement by the main frame of numerical control cutter, start numerical control cutter Scissoring device, detection device detects the one-tenth-value thickness 1/10 of materials to be clipped automatically, is converted into data signal transmission to data processing equipment.
In the present embodiment, described detection device 5 uses laser ranging system, described detection device 5 to launch laser by laser beam emitting device, receive time difference during laser according to receptor and determine the thickness of materials to be clipped.During detection device 5 initial measurement, materials to be clipped is not placed on Cutting table, detection device launches beam of laser to Cutting table 2 direction, timing is started while launching, laser is propagated in atmosphere, return immediately when encountering cutting table top in Tu, laser pickoff receives transmitting light and stops timing immediately, the time of counter records is t, the aerial spread speed of laser is v, detection device 5 arrives the initial distance S=v* (t/2) of cutting table top, this initial distance is the distance value that projection arrangement 4 initial position is corresponding, when placing materials to be clipped on Cutting table 2, detection device 5 utilizes same principle to calculate the detection device 5 distance apart from materials to be clipped, the one-tenth-value thickness 1/10 of materials to be clipped is that detection device 5 deducts initial distance to the distance of materials to be clipped.
Step 402, calculates the difference of one-tenth-value thickness 1/10 and preset value.
Specifically, utilizing data processing equipment 6 to calculate the one-tenth-value thickness 1/10 of the materials to be clipped that step 401 obtains and the difference of preset value, this preset value is the standard thickness value set.
Step 403, data processing equipment 6 judges that whether the absolute value of difference is more than pre-set threshold value;The most then perform step 404;If it is not, then perform step 407;Wherein, described predetermined threshold value is the error range value of described preset value.
Step 404, it is judged that whether difference is positive number;The most then perform step 406;If it is not, then perform step 405.
Step 405, projection arrangement 4 declines the distance identical with difference
Specifically, the difference that the result judged according to step 404, i.e. step 402 obtain is negative, and driver 42 drives projection arrangement 4 to move down the distance identical with described difference.
It should be noted that driver 42 drives projection arrangement 4 to move in Z-direction, Z-direction is perpendicular to the table top of Cutting table.
Step 406, projection arrangement 4 rises the distance identical with difference
Specifically, the difference that the result judged according to step 404, i.e. step 402 obtain is positive number, and driver 42 drives projection arrangement 4 to move up the distance identical with described difference.
Step 407, cropped image is projected in materials to be clipped by projection arrangement 4.
Specifically, after projection arrangement 4 position determines, cropped image is directly projected in materials to be clipped by projection arrangement 4.
It should be noted that during each numerical control complete materials to be clipped of cutter cutting, projection arrangement 4 automatically returns to initial position, this initial position is to detect the initial position set in device in step 401, is automatically adjusted ready for numerical control cutter next time.
Also, it should be noted the projection arrangement in present embodiment is colored, tight shot.Additionally, in actual applications, projection arrangement can be monochromatic, zoom lens.
Below in conjunction with Fig. 4 for illustrating:
In Fig. 4,21 is the materials to be clipped of standard thickness, and standard thickness value is L, and bidding quasi-one-tenth-value thickness 1/10 L is the preset value in data processing equipment, and K1 is the normal width that projection arrangement projects the image in materials to be clipped 21.22 is the materials to be clipped that thickness is bigger, and one-tenth-value thickness 1/10 is L1.When not spreading materials to be clipped on Cutting table 2, detection device 5 calculates the detection device 5 initial distance S (not shown) to cutting table top, this distance is the distance value that the initial position of projection arrangement 4 is corresponding, materials to be clipped 21 is layered on Cutting table 2, detection device 4 calculate materials to be clipped 21 to detection device distance for S1 (not shown), the one-tenth-value thickness 1/10 L=S1-S of materials to be clipped 21, set one-tenth-value thickness 1/10 L as preset value, data processing equipment 6 calculates the one-tenth-value thickness 1/10 of materials to be clipped 21 and the difference △ L of preset value automatically, △ L=L-L=0, projection arrangement 4 is directly by cutting information projection to materials to be clipped 21, now, it is K1 that projection arrangement 4 projects the width of the image in materials to be clipped 21.nullMaterials to be clipped 22 is layered on Cutting table 2,Detection device 5 calculate materials to be clipped 22 to detection device 5 distance for S2 (not shown),The one-tenth-value thickness 1/10 L=S2-S of materials to be clipped 2,The one-tenth-value thickness 1/10 detecting materials to be clipped 22 is L1,Data processing equipment 6 calculates the one-tenth-value thickness 1/10 of materials to be clipped 22 and the difference △ L of preset value automatically,△ L=L1-L,The absolute value predetermined threshold value more than data processing equipment 6 of △ L judged by data processing equipment 6,This predetermined threshold value is the error range value of preset value,And △ L is positive number,Control device 7 sends correction instruction and is corrected to correcting unit 8,The present embodiment drive projection arrangement 4 automatically to rise the distance of △ L for driver 42,Then cutting image is projected in materials to be clipped 22 by projection arrangement 4,Now to project the width K2 of the image in materials to be clipped 22 equal with normal width K1 for projection arrangement 4.If the one-tenth-value thickness 1/10 of materials to be clipped is more than predetermined threshold value with the absolute value of the difference △ L1 (not shown) of preset value, and △ L1 is negative, control device 7 sends correction instruction and is corrected to correcting unit 8, the present embodiment drive projection arrangement 4 automatically to decline the distance of △ L1 for driver 42, after projection arrangement 4 position determines, cutting image is projected in materials to be clipped by projection arrangement 4.When each numerical control complete materials to be clipped of cutter cutting, projection arrangement 4 all can automatically return to initial position, and this initial position is the position that the initial distance set in described detection device 5 is corresponding.
Present embodiment can also be improved further, materials to be clipped 22 is layered on Cutting table 2, projection arrangement 4 is fixed, main frame 1 amplifies the size of the source images before materials to be clipped 22 projection automatically, or setting projection arrangement 4 is zoom lens, projection arrangement 4 automatic focus adjustable so that the picture size that projection arrangement 4 projects in materials to be clipped 22 is equal sized with real image.
Although the foregoing describing detailed description of the invention of the present utility model, it will be appreciated by those of skill in the art that this is merely illustrative of, protection domain of the present utility model is defined by the appended claims.These embodiments, on the premise of without departing substantially from principle of the present utility model and essence, can be made various changes or modifications, but these changes and amendment each fall within protection domain of the present utility model by those skilled in the art.