TW201126294A - Numerical control device and production system - Google Patents

Abstract

A numerical control device includes a machining program read section (2) which reads a command (11) commanded by a machining program (1), a command path storing section (3) which stores a command path before compression (12) to a buffer (20) for command path before compression, a compression processing section (4) which creates a new compressed command path (13) by connecting the start point and the end point of plural successive command paths, a movement data forming section (5) which corrects the compressed command path (13) into a tool moving path and forms a tool movement data (15) needed for carrying out interpolation of the tool moving path, and an interpolation processing section (6) which carries out interpolation of a tool moving path of the case that command paths are not compressed by the compression processing section (4) by using both of the command path before compression (12) stored by the command path storing section (3) and the tool movement data (15) of compressed tool moving path formed by the movement data forming section (5) so as to acquire a tool position (16).

Description

201126294 VI. Description of the Invention: [Technical Field] The present invention relates to a numerical control device for numerical control of a working machine (Numerical Control: NC) and a production system, and more particularly to processing according to a plurality of instruction paths including continuous A numerical control device and a production system that control the movement of the tool relative to the machined workpiece. [Prior Art] When a three-dimensional shape is added to a machine tool equipped with a numerical controller, there is a case where machining is performed in accordance with a machining program in which a plurality of command paths are successively approached to a free-form surface. In the case of a simple shape, although a machining program is manually created, when the machining shape is a three-dimensional shape including a free-form surface, it is usually a CAM (Computer Aided Manufacturing) on an external device different from the numerical control device. : Computer-aided manufacturing), etc. to create a processing program. When using CAM to create a machining program, in order to express the free-form surface as accurately as possible, it is necessary to shorten the length of one command path (hereinafter referred to as the path length). However, the number of command paths that can be processed in a certain period of time is limited by the data processing capability of the numerical control device, so the path length becomes shorter, and the distance that the tool can move within a certain period of time, that is, the feed rate of the tool is limited. . Therefore, the conventional numerical control device performs high-speed machining by replacing (compressing) a plurality of consecutive command paths in the same straight line section into one command path, thereby increasing the path length (for example, Patent Document). [Patent Document 1] Japanese Patent Application Laid-Open No. 3459155 (Draft of the Invention) (Problems to be Solved by the Invention) However, according to the above prior art, whether or not the determination is made in the same straight line section There is a tolerance range. Therefore, if a continuous plurality of command paths are replaced by one command path, a path error due to compression occurs, and there is a problem that the machining accuracy is lowered. φ Further, in accordance with the prior art described above, The path error due to compression is reduced, and if the allowable error range used for the determination of the same straight line section is reduced, the high-speed processing effect due to compression becomes small, and it is difficult to perform high-speed machining. The invention is completed in view of the above problems, and the object of the invention is to obtain even In the case of a processing program including a plurality of command paths having a short path length, it is possible to achieve a high-speed numerical control device and a production system without reducing the machining accuracy. ® (Means for solving the problem) A numerical control device according to the present invention includes: a compression processing unit that creates a compressed command path that is connected by a plurality of consecutive pre-compression pre-command path paths; and a path correction for the compressed command path Correcting the compressed command path to the tool movement path, and creating a movement data creation unit for moving the tool to be used for interpolation of the tool movement path; and obtaining the pre-compression instruction 5 322038R01 201126294 The amount of movement of the path, and based on the tool movement data created by the movement data creation unit, the tool is corrected by moving the tool on the movement path without compressing the command path. Position interpolation processing unit. Advantageous Effects of Invention According to the present invention, even when a machining program including a plurality of command paths having a short path length is used, an effect of speeding up processing can be achieved without lowering the machining accuracy. φ [Embodiment] Hereinafter, embodiments of the numerical control device and the production system of the present invention will be described in detail with reference to the drawings, but the present invention is not limited to the embodiment. Embodiment 1 shows a numerical value of the present invention. A block diagram of a schematic configuration of the control device. In Fig. 1, the numerical control device 1 can numerically control the movement of the workpiece by a machining program including a plurality of command paths having a continuous performance. In the middle, there is a processing program reading unit 2 of the command 11 of the knot, a force: 1) The compression obtained by the instruction (4) The path 12 is read by the unit 2 (4) (4) 2) The command path storage unit 3 causes the path buffer to shrink. The start and end points of the pre-command path 12 are continued. The compressed command (four) 13 pressure/red is formed - a new correction to the tool movement # 4, the post-reduction command path 13 The tool to be used moves (f5) with the moving path for interpolation, and the interpolation processing unit 6 for calculating the tool position 16 by shifting the path to the work 322038R01 6 201126294. The command u, which is instructed by the Tianjia I program, is input to the numerical controller ’, and the command u is output to the machining program reading unit 2. : The work | presentation reading unit 2 reads the addition of the engineering instruction u = rational = pre-reduction command path 12 loss _ age road line storage unit 3 and (4) processing / 4, and the path correction cum action data 14 is output to The compression processing unit and the pure correction and motion data 14 may include information for correcting the path 12 of the processing program to the path of the tool movement, determining the feed speed of the shrinking day (2) 12, and the operation mode, etc. Information necessary for the action in motion. The storage unit 3 receives the pros and cons from the machining program reading unit 2: == : the command path is reduced to the front. The dust reduction processing unit 4 receives the other path 12 from the machining program reading unit 2, and creates The continuous plural (four) pre-reduction command road: two = the new one that is connected by the Γ 令 令 U U U U U U U U U U U U U U U U U U U U U U U U U In addition, 1^4 will also correct the path of the compressed command path 13 and the action component. The condensing processing unit 4 may not correct the path before the 14 different pre-compression commands, and the path correction for the compressed command path 413 may be the path correction of the punctured command path 13 "-action bead 14" All the pre-compression command paths 12 _1" of the action data 7 pack 3 "the material creation unit 5' is based on the path correction cum action data 322038R01 7 201126294 14 _ processing unit 4 created after the leaking finger movement path, and made in the tool movement The path is corrected to the tool movement (4) 15, and it is input (4). The tool is required to move the data 15 to indicate the path and motion of the interpolation. (4) The tool starts to move to the start and end of each axis. The path from the starting point to the end point = tool t setting (4) unit direction vector, command feed speed, permissible tool movement, and permissible speed, etc., which are necessary for determining the tool movement path and the operation of the work machine. In addition, you can use the section 5 of the 度 姑 从 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、

The analog processing unit, which is not shown, performs the inspection and output processing, and outputs it to the display ratio not shown. (4) The operation mode of the first operation unit 6 receives the work created by the mobile data creation unit 5, and reads the compressed two-path 12 from the pre-compression command path buffer 20. Then, based on the movement data 15 ’ created by the movement data creation unit 5, the tool path (4) corrected by the pre-compression command path 12 is interpolated to obtain the guard position 16. Then, the obtained portion 16 is output to the unaccompanied acceleration/deceleration processing unit and the servo control ’, and the movable portion of each of the axes (not shown) can be driven. In the following, the operation of the numerical controller of the first embodiment is performed, and the operation of the equation 4, the command path storage unit, and the compression processing unit is performed. 2. The reduction processing unit 4 is the canned instruction path 13 32203 8R01 8 201126294 The command processing route number i (process 2/, medium ' command path 12矣-士μ, ., θ is not the first in the sequence of the processing of the compressed rear path L 13 in the compression processing unit 4 of Fig. 1 1) before compression

(1) The heart-plant will compress the complex number (four) before the pre-short command path N and the r-path number j (6)). The compressed command path pressure ^ is an example of the relationship between the command path (4) and (1) after the pre-routing command path N(1) gold is shrunk. Figure. ()" Two diagrams: In step S1, the machining program reading unit 2 determines that the addition engineering i is compressed:: No is the first time 'If it is the first time, then proceeds to step S2, =:, the command path of the path N(1) The number i is initialized to , and the path number j after the compression of the path N (j) is initialized to not, = step (4). On the other hand, if the execution of the program ι is first, the process proceeds directly to step S3. Step % 'Accumulate command path Long L division's initial /, S 7 control length Lprg system indicates the cumulative value of the path length of the pre-reduction command path (4) (1) contained in the compressed command path N, (j) In step S4, the machining program reading unit 2 compiles the command path and then extracts the pre-compression command path N(i) from the command u indicated by the machining program in step S5. Then j is in step S6. When the compression processing unit 4 determines whether or not the cumulative command path Lprg is $ 〇 ', that is, whether or not the secondary compression processing is not performed, and the cumulative command path length Lprg is Q (the first time the pressure is processed: the case of the processing) Then, proceeding to step S7, the starting point of the command path N(1) before compression After the compression is commanded, the road feed is commanded, starting point of (1). 32203 8R01 9 201126294 Then, at step S9, the compression processing unit 4 sets the end point of the pre-compression command path N i to the end point of the command path ν, (1): :: Before the compression, the path length of the command path (4) (1) is added to the accumulation finger '= W to 1 = step S11'. The command path storage unit 3 saves the pre-compression command path N(1) before the pre-shrink instruction path buffer, and then returns. The processing of the processing program reading unit 2 in step S4. The data stored in the pre-friction command path = buffer 2G is the starting point of the command path n(1) before the closing of the table, and the path length is specified by the command path. The processing up to this point is: the creation of the command path after the compression and the storage of the command path buffer 20 before the compression of the pre-compression command path N(i), and the determination in step S6 is to proceed to the step phantom ^ In the case, the compressed instruction path Ν 'α) is the same as the instruction path of the pre-compression instruction path N(i). Next, a description will be given again for the flow back to the processing after step S4. In step S4 after returning from step S11, the command path number i is incremented by 1, and then the pre-compression command path N(i) is read from the command u indicated by the machining program 1 in step S5. Here, the reading is the previous 322038R01 10 201126294 before the dust reduction command line (four) (Η) read in step S5 (four) before the shrinking finger followed by the 'step S6 judgment, because in the previous heart sl〇: The path of the pre-compensation command path N(H) of == is the length of the eight = the length Lprg, so proceed to step 邡. Accumulation path ... Then, in step S8, the contraction processing unit 4 determines that the pressure path N (j) and the pre-compression command path 2曰 advance to step S9, and the post-service command path: two = 终点 (1). Then repeat step 2] = ::: add a number of (four) pre-command paths, and then make the surface, if you can not suppress the knotting process, then in (4)

The penalty number i is reduced, and the compressed command path is incremented by 1 ° J. Then, in step S13, the prepared compressed command path N, (1) path length Lcmp and unit direction vector u ( Here, the unit direction vector u is a unit vector from the start point of the compressed command path N, (1) toward the end point) and is set together with the cumulative command path length Lprg to the path correction and action (4) 14, and then enters The data creation unit 5 is moved. In the first embodiment, the command path number is decremented by 1 ' in step S12, and the pre-compression command path N(1) determined to be incompressible is not used thereafter, but the read command path can also be saved. Then, in the processing of the next step S5, the slave program reader is not used, and the saved command path is used. Here, the determination processing of the compressibility of step S8 will be described. 322038R01 11 201126294 Step S8 may be performed after the compressed command path N, (j) is different from the path correction and action data 14 of the pre-compression command path N(i), or the compressed command path N (]·) or the contraction The pre-command path N(i) is the command path that must be decelerated to stop at the end point, or the command path Ν'(j) or the compressed command path N(i) is at the end of each command path after compression. The situation in the action mode of the decrease and stop is judged to be incompressible. The command path that must be decelerated and stopped at the end point includes the positioning command (G00 command) and the complete stop (exact st〇p) command (g〇9 command, G61 command), and the spring stops at the end of each command path. The mode includes a single block operation mode in which one command path is executed each time, and an error detection mode (error detect m〇(je)) that performs a deceleration check at the end of each command path by inputting an external signal. In addition, whether the number of compression paths (the number of pre-compression instruction paths included in the command path after compression) exceeds a predetermined maximum value or whether the path error due to compression exceeds a predetermined tolerance may be employed. The method of judging whether or not the path length of the command path exceeds a predetermined allowable length and determining whether it is compressible or not is used as a method of judging whether or not the compression is possible. <Operation of the mobile data creation unit> _ Next, the mobile data creation unit 5 Path correction is performed on the compressed command path ι3 created by the compression processing unit 4 based on the path correction and action-bean material 14. To the tool movement path. This path correction includes parallel movement of tool length offset and workpiece offset (w〇rk 〇ffset), zooming and reduction of the entire command path, and coordinate conversion such as coordinate rotation. 4 is a diagram showing an example of the relationship between the compressed command path 13 and the tool movement path 322038R01 12 201126294. Then, the movement data creation unit 5 creates a tool movement data 15 necessary for interpolation on the tool movement path obtained by the path correction. In the first embodiment, the path length Lt formed by connecting the start point and the end point of the tool movement path is not the cumulative command path length Lprg of the path correction/operation data 14 (included in the command path 13 after compression) The path length obtained by the cumulative value of the path length of the pre-compression command path 12 is set to the tool movement data 15 as the path length L' of the tool movement path. Specifically, φ is the path of the tool movement path. The length L' is expressed as follows: if the cumulative command path length is set to Lprg, the path length of the command path 13 after compression is set to Lcmp, and the link tool is moved. When the path length from the start point and the end point of the path is set to Lt, the path length multiplication ratio (the start point and the end point of the link tool movement path) are generated along with the coordinate conversion of the command path 13 after the compression as shown in the equation (1). The ratio of the path length Lt of the path to the path length Lcmp of the compressed command path 13 is multiplied by the cumulative command path length Lprg. [Expression 1] # L-LprgxS5 (1) The tool obtained here The path length L' of the moving path is the cumulative path length of the tool moving path when the compression processing unit 4 does not compress the pre-compression command path 12 (before compression). Fig. 5 shows the first embodiment. A diagram of an example of the relationship of each path length. By using the compressed command path 13 to create the tool movement data 15, the processing time of the moving data creation unit 5 can be shortened. Specifically, if the number of paths of the compressed 13 322038R01 201126294 (the number of pre-compression command paths 12 included in the compressed command path 13) is k, the processing time of Ι/k in the case where compression is not performed can be performed. Path correction and tool movement data 15 are produced. <Operation of Interpolation Processing Unit> Next, the interpolation processing unit 6 uses the pre-compression command path 12 and the movement data creation unit 5 in the pre-compression command path buffer 20 stored in the command path storage unit 3. The tool movement data 15 is interpolated on the tool movement path of the case where the compression processing unit 4 does not compress the command path (before compression) φ, and the tool position 16 is created. Fig. 6 is a flow chart showing an example of the processing procedure of the interpolation processing unit 6 in the first embodiment. In Fig. 6, step S61 calculates the movement amount FAT for each interpolation period from the command feed speed. Then, in step S62, the movement amount FAT of each interpolation period is normalized based on the path length L' of the tool movement path, and the normalized movement amount FAT' is obtained. The normalized movement amount FAT' is expressed as the ratio of the movement amount FAT of each interpolation period to the path of the tool movement path ® length L as shown in the formula (2). [Expression 2] ΡΔΓ=£ΔΤ (2) Then, the path length of the pre-compression command path 12 stored in the pre-compression command path buffer 20 is normalized based on the cumulative command path length Lprg to obtain a standardized path length, and reused. This standardized path is long to find the instruction path number. Fig. 7 is a view showing a calculation example of the command path number 14 32203 8R01 201126294 in the first embodiment. Among them, the work type 1 fresh clothing and the order number i (the i-th addition) before the compression of the command path, h, (1) represents the standardized path length of the path N (1), n, (1) table pre-compression instructions The path N(i) is compressed to obtain the first and the order path. Moreover, in Fig. 7, the pre-constriction command is pure N, +, and, in addition, in Fig. 7, the cumulative private path length Lprg is as shown in equation (3), indicating the point. N, (j) contains the compression i buckle '. The sum of the soil shrink h (1) ^ command path ^ (1) the path length [Expression 3] (3) LP ^ glm (1 + k) · Shi also 'will compress the pre-command path The path length of N(1) is expressed as (1) = the normalization path length is 1 m, and (1) is expressed as the ratio of the path length lm(1) of the compression path (4) (1) to the cumulative command path length Lprg as shown in the equation (4). [Expression 4] lm(i) (4)

Lprg and the following, the method of calculating the command path number will be specifically described based on Fig. 7. Here, for the sake of simplicity (10), the current station position is set at the starting point. In γ, in Fig. 7, it is judged whether or not the normalized movement amount FAT is larger than the normalized path length lm'(1). In the case of a standardized movement amount FAT, the command path number of the desired 32203 8R01 15 201126294 is the initial pre-compression command path after the current tool position in i (compressed command path N, 〇): Path number). In addition, in the case of a large-scale normalized movement amount FAT, the normalized (four) quantity ΡΔΓ is subtracted from lm, (1).

T'' is compared with the size of lni'mD. (4) I FA ❿ Then, in subtracting the obtained movement amount FAT, the smaller command path number is (9)). Repeat the above steps, and === In the first example, the calculated command path: edit, and the instruction path number of the different output is expressed as m. Let Lulu's current tool position be calculated after compression, but in the current position is not two: two = "the starting point of ν (1)", as long as the current /, position is facing (four) The instruction path Ν(1) command makes the remaining path length of the path Ν(1) (from the current work order, the end of the path Ν(1) along the length of the path), and counts in the H secret (four) county (four) . If the port is to use the end point of the command path N, (1), the I-reduced command path W+DT ' to use the remaining normalized movement amount of the k point is entered into the remaining FAT, and becomes 〇 Just fine. In the same embodiment, in the present embodiment, the command of the pre-command road is rotated and displayed on the display line number 322038R01 16 201126294 p. In step S63, first, from the ratio of the display path length lm'(m) of the pre-compression command path N(m) and the amount of movement from the Wei-Jing order path, the ratio of the pre-contraction command path is obtained. ; Coordinate value Pt. Specifically, if the value of the starting point of the command path is reduced by ρ0ιΜ), and p(m) represents the value of the end point coordinate, then the coordinate value 扒:: (5): the pin indicates the path of the pre-shrinking command N(4) is the ratio of the movement 罝F, τ' ' from the starting point to the end of the day, the movement amount multiplied by the starting point of the command path _), and the ratio of the normalized path of the I pre-command command path N(4) (4) From the (fourth) of the pre-compensation command path N(m) = 里 β and then shift the movement from the start of the pre-contracted instruction path N(m) to the >1 pre-contracted instruction path The starting point coordinate value of N(m) is calculated. [Expression 5] P(4)(4)+_-P(m.^g ...(5) Discuss, the coordinate value pt is subtracted from the coordinate value Pt' on the current command path, and the road feed is commanded after compression, and the amount of movement of each axis of (1) The quantity Δ=, S64, the movement of the command path r(1) after the compression is the movement amount Δρ in the tool movement path, and the current position is calculated, and the tool before the coordinate rotation of the acceptance path correction is calculated. In other words, as shown in the equation (8), the moving amount center of the r=1) is multiplied by the coordinate of the path length generated by the coordinate conversion of _y (the path connecting the start point and the end point of the road) Long Lt phase 斟#多动路仫

The ratio of the length of the Ic shirt) and the length of the path of the command path after the contract is shortened, and the movement amount Δ〆 in the tool movement path is obtained, and then the current tool position pn on 32203SR01 17 201126294 is added and calculated. Thus, the enlargement or reduction caused by the path correction of the moving material creating portion 5 can be absorbed. [Expression 6] ρ'=ρη+Δρχ (6)

Lt

Lcmp Next, in step S65, it is determined whether or not the path of the unit direction vector u of the tool movement path and the unit direction vector u' of the tool movement path are the same according to whether or not all the components of the unit direction vector u' of the tool movement path are the same. The correction causes the coordinates to be rotated, and when the coordinates are not rotated (the unit direction vectors u, u' are the same), the tool position P' before the rotation of the coordinates subjected to the path correction is output as the tool position 16. On the other hand, when the coordinates are rotated (the unit direction vector u, u' is different), the process proceeds to step S66. Then, in step S66, a conversion matrix T for converting the unit direction vector U of the compressed instruction path Ν'(j) to the unit direction vector u' of the tool movement path is obtained. The transformation matrix T can be found from the angle between the two vectors. For example, if the unit direction vector u' is a vector obtained by rotating the unit direction vector u around the Y axis by the angle ,, the conversion matrix T can be expressed by the equation (7). Here, although the example is rotated in two dimensions, even in the case of three-dimensional rotation, the conversion matrix T can be set in the same manner by changing the product of the rows and columns rotating around the respective axes. [Expression 7] cos0 0 sin0 T= 0 1 0 (7) -sin Θ 〇cos 0 _ 18 322038R01 201126294 Then, in step S67, as shown in equation (8), the coordinates of the tool before rotation are used to coordinate Conversion:: The position of the tool after the rotation of the coordinates of the seat of the party is corrected, and is output as the tool position 16. , [[Equation 8] p&quot;=Tn' Ρ Ρ · · · (8) State "' is the command of the front of the butterfly to circumnavigate ~" + 4 Where the performance is (four) sign. - Generally speaking, shift ^ = create The county uses the age road (4) to enlarge, feed, rotate, etc. to end the second way, but by making the pre-reduction command path phase = shrink the command path Ν, (she is long (tired (10) diameter ==: and enlarged The instruction road of reduction, rotation, etc. directly uses the original information to reach the ugly "make the road control, which can make the path correct, and the heart of the path is relative to the corresponding reference of the 1 _ _ After the compression, the path length of the command path is different) to the corresponding relationship between the command path (3 path length from the start) (or I, the starting point is efficient and purely processed. And (4) the amount of calculation is small' In the present embodiment, the amount of movement of each axis may be converted to the axis of each of the paths of the final order of the tool movement path (the tool path 2 = diameter, as described elsewhere). The display is not shown in the figure 322038R01 19 201126294. Further, in the first embodiment, the next one in execution can be performed. The end point coordinate value and the starting coordinate value of the pre-contracted command path N(m+1) are converted to the end point coordinate value and the starting coordinate value on the tool moving path, and then the end point coordinate value on the tool moving path is subtracted from the tool movement. The amount of movement obtained by the starting point coordinate value on the path is outputted and displayed on a display device (not shown) in the form of the moving distance of the next tool moving path that is currently being executed. # &lt;Effect> As described above, according to In the first embodiment, the path correction to the tool movement path and the tool movement data can be performed on the compressed command path obtained by compressing the plurality of pre-compression command paths. Therefore, even in the path to the tool movement path In the case where the load of the correction, the movement of the tool movement data, and the processing of the interpolation processing is high, the amount of data processing can be reduced, and the processing speed can be made high, so that high-speed machining can be realized. Further, according to the first embodiment, And using the tool before the compression command path and the tool of the compressed tool to move the path to move the data, The tool movement path in the case where the path is compressed is interpolated to obtain the tool position. Therefore, the tool movement of the compressed tool movement path can be moved while moving the tool on the tool movement path without compressing the command path. Data generation can suppress the occurrence of path errors due to compression, and prevent the processing accuracy from being reduced due to compression. Further, according to the first embodiment, the command path is a command path that must be decelerated and stopped at the end point. In the middle, the compressed command path 20 322038R01 201126294 == the previous command path may be compressed, and the single-compressed pre-t path becomes the compressed instruction path. Therefore, a plurality of links can be executed: ;::::: ::!::::::::::::£ -point==According to this implementation mode, it is in the action mode that is to be stopped at the speed of the • and the second occupation speed of each command path. The _ instruction path and the next-pre-compression instruction path are compressed, so that the single=compressed pre-command becomes the (four) post-command path. Therefore, even if the operation mode is changed in accordance with the state of the external signal operated by the operator, it is possible to determine whether or not the compression is possible in real time, and to perform the operation desired by the (four) member. Further, according to the first embodiment, the normalized movement amount obtained by standardizing the tool movement amount for each interpolation period with the cumulative path length reference of the tool movement road scale, and the cumulative instruction path length (after compression) can be used. The cumulative value of the path length of the I pre-contracted command path included in the path.) Reference: Before the refinement, the path of the path (four) is normalized to the normalized path length to calculate the command path number of the tool position. Therefore, it is possible to perform the movement of the tool on the path of the different path and the command path before the compression: the size comparison, and the command path number of the tool position can be calculated, and the tool movement can be performed without compressing the command path before compression. Interpolation on the path. Further, according to the first embodiment, the simulation of the operation of the machining program 322038R01 21 201126294 can be performed by using the compressed tool movement path after the compressed command path is corrected. Therefore, the number of paths to be processed in the simulation processing is reduced, and the simulation drawing update speed can be made faster. Further, according to the first embodiment, the command path indicated by the machining program can be used to obtain the number of execution line numbers to be displayed on the display device, the remaining distance display of each axis of the execution path, and the current execution. The moving distance of each axis of the next path is displayed. Therefore, by displaying the original information of the original processing program on the display device, the operator can perform the operation without perceiving the sense of discomfort caused by the compression. (Embodiment 2) Fig. 8 is a block diagram showing a schematic configuration of a production system according to a second embodiment of the present invention. As shown in FIG. 8, the mobile material calculation device 101 includes a movement data storage unit 7 that stores the tool movement data 15 output from the movement data creation unit 5 in the tool movement data buffer 21, and a machining program reading unit 2 The command path storage unit 3, the compression processing unit 4, and the mobile data creation unit 5. The numerical controller 102 is provided with an interpolation processing unit 6. In the eighth embodiment, the same components as those in the block diagram of the schematic configuration diagram of the first embodiment shown in Fig. 1 are denoted by the same reference numerals, and the description thereof will not be repeated. Next, the operation of the second embodiment will be described. With respect to the first embodiment, as shown in FIG. 1, all of the machining program reading unit 2, the command path storage unit 3, the compression processing unit 4, the movement data creation unit 5, and the interpolation processing unit 6 are performed by the numerical controller 100. In the second embodiment, as shown in FIG. 8, the processing program reading unit 2, 22 32203 8R01 201126294 command path storage unit 3, compression processing unit 4, mobile data creation unit 5, and mobile data storage unit 7 are provided. The moving material calculation device 101 of the tool movement data buffer 21 stores the pre-compression command path 12 and the tool movement data 15 in advance to the pre-compression command path buffer 20 and the tool movement data buffer 21 before processing. Then, the numerical controller 102 interpolates the tool movement path corrected by the pre-compression command path 12 in the interpolation processing unit 6 based on the tool movement data 15 stored in the tool movement data buffer 21, and obtains the tool position 16 . In the second embodiment, the pre-compression command path 12 and the tool movement data 15 are stored in different buffers. However, as in the example shown in FIG. 9, the pre-compression command path 12 and the tool movement data 15 may be used. The merged form preserves both. <Effects> The processing of the machining program reading unit 2, the command path storage unit 3, the compression processing unit 4, and the movement data creation unit 5 is performed in the mobile material calculation device 101, and in addition to the effects of the first embodiment, The load of the immediate processing of the numerical controller 102 can be reduced, and the high-speed machining can be further realized without lowering the machining accuracy. (Embodiment 3) Fig. 10 is a block diagram showing a schematic configuration of a production system according to Embodiment 3 of the present invention. As shown in FIG. 10, the compressed shape calculation device 103 includes the compressed command path 13 outputted by the compression processing unit 4 and stored in the compressed command path storage unit 8 after compression, and the compression processing is performed. The path correction and action data 14 outputted by the unit 4 is stored in the path 23 32203 8R01 201126294 Correction and action data buffer 23: and the program read unit 2 and the command path 2; The numerical controller 104 is provided with a movement data creation unit = a treatment unit 6. In the first diagram, the same components as those of the block diagram of the schematic configuration diagram of the P diagram and the interpolation diagram are shown:::: The same elements are denoted by the same reference numerals, and the description of _ is omitted. The configuration of the third embodiment will be described below. In the second embodiment, as shown in the δth diagram, the processing program reading unit 2, the command path storage unit 3: the strict processing unit 4 and the mobile data creation unit 5, I3 compression 10, By providing an e/L 3 system such as a Α Λ 读取 reading unit 2, a 牧 卜 压缩 压缩 压缩 压缩 压缩 压缩 压缩 、 、 、 、 、 、 保存 保存 保存 保存 保存 保存 保存 保存 保存 保存 保存 保存 保存 保存 保存 保存 保存After compression, the correct action ring (4) is used as the data storage unit 9 and the path repair:: for the shell (four) benefit 23 after the compression, the shape of the second compression before the command path 12, the compressed command path 13 =: after the shrink (four) order ^ buffer buckle two twenty three. ^Road (four) punch 22 and path correction and motion data buffer money 'numerical control device (10) in the mobile data creation unit 5 according to the path correction and action in the path correction and motion data buffer ϋ 23, 'Save in an instant manner After the compression, the compressed command path 13 of the command path buffer 修正 is corrected to the tool movement path and the tool movement data to be used for interpolation of the tool=movement and path is created, and the interpolation unit 15 is based on the movement data creation unit 5. The created tool moves the data in an immediate manner by interpolating the modified tool path 24 322038R01 201126294 moving path to obtain the tool position 16. In the third embodiment, the pre-compression command path 12, the compressed command path 13, and the path correction/operation data 14 are stored in different buffers. However, as in the example shown in Fig. 11, the pre-compression command path may be used. 12. The compressed command path 13 and the path correction and action data 14 are combined and saved. <Effects> The processing of the machining program reading unit 2, the command path storage unit 3, and the compression processing unit 4 by the compressed shape calculation device 103 can reduce the numerical control device in addition to the effects of the first embodiment. The immediate processing load of 104 can further realize high-speed machining without reducing the machining accuracy. Further, by performing the processing of the moving data creating unit 5 in an instant manner, even if the tool is broken and replaced with a preliminary tool for processing during processing, the tool moving data 15 is calculated based on the replaced tool data. The pre-compression command path 12, the post-compression command path 13, and the path correction and motion data 14 which are calculated in advance before processing can be directly used. (Industrial Applicability) The numerical control device of the present invention as described above can perform path correction to the tool movement path and tool movement data on the compressed command path obtained by compressing a plurality of command paths. Moreover, the tool position can be obtained on the tool movement path when the command path is not compressed, and it is suitable for the case where the machining program including a plurality of command paths having a short path length is used, and the machining accuracy is not lowered. A method of achieving high speed processing. [Brief Description of the Drawings] Fig. 1 is a block diagram showing a schematic configuration of a numerical controller according to a first embodiment of the present invention. Fig. 2 is a flow chart showing the procedure for creating a compressed command path in the numerical controller according to the first embodiment of the present invention. Fig. 3 is an explanatory diagram of a post-compression command path in the first embodiment of the present invention. Fig. 4 is a view showing the movement path of the tool in the first embodiment of the present invention. Fig. 5 is an explanatory diagram of each path length in the first embodiment of the present invention. Fig. 6 is a flow chart showing the procedure of interpolation processing of the numerical controller according to the first embodiment of the present invention. Fig. 7 is an explanatory diagram showing the calculation of the command path number in the first embodiment of the present invention. Fig. 8 is a block diagram showing a schematic configuration of a production system according to a second embodiment of the present invention. Fig. 9 is a view showing an example of the storage format of the command path and the tool movement data before the compression according to the second embodiment of the present invention. Fig. 10 is a block diagram showing the schematic configuration of a production system according to a third embodiment of the present invention. Fig. 11 is a view showing an example of the storage mode of the pre-compression command path, the compressed command path, and the path correction and motion data stored in one of the third embodiments of the present invention. [Description of main component symbols] 26 32203 8R01 201126294 1 Machining program 2 Machining program reading unit 3 Command path storage unit 4 Compression processing unit 5 Moving data creation unit 6 Interpolation processing unit 7 Moving data storage unit 8 Compressed command path storage unit 9 Path correction and motion data storage unit 11 Command 12 Pre-compression command path 13 Post-compression command path 14 Path correction and motion data 15 Tool movement data 16 Tool position 20 Pre-compression command path buffer 21 Tool movement data buffer 22 Compressed command path Buffer 23 path correction and motion data buffers 100, 102, 104 numerical control device 101 mobile data calculation device 103 compressed shape calculation device

27 322038R01

Claims (1)

201126294 VII 1. Patent application scope: - A kind of numerical control device, which has: a starting part of the 'manufacturing part of a compressed number of compressed pre-compression command paths and points to be connected; a private data preparation part' According to the above-mentioned pressure path correction 翏 咨 咨 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Then, the value processing unit obtains the situation in which the pre-dusting command path is 'compressed according to the path created by the fourth (4) data creation unit. "Moving the method to correct the amount of movement, and obtaining the tool position 2: The numerical control device of the i-th patent application scope, wherein 'there is also a machining program reading unit, which includes a plurality of consecutive instruction path workers (four) And (4) command to read the pre-compression path correction and motion data; and the bit command path storage unit, wherein the pre-compression command path read by the addition/cutting unit is saved to the pre-compression instruction path buffer. 3. For example, the numerical control (4) of the second application of the patent scope, wherein the dust reduction processing section is required to command the end of the road before the compression, or to command the speed of the road before the compression. In the case of the reduced and stopped action mode, a single compressed front finger 322038R01 28 201126294 makes the path a compressed command path. 4. The numerical control device according to claim 2, wherein the interpolation processing unit normalizes the amount of tool movement for each interpolation period based on an accumulated path length reference of the tool movement path without compression. The normalized movement amount and the standardized path length standardized by the path length of the pre-compression command path stored in the pre-compression pre-compression path buffer based on the cumulative command path length reference to perform the aforementioned tool movement path and pre-compression instruction The correspondence of the paths is established. 5. The numerical control device according to claim 2, wherein the operation check of the machining program is performed based on a tool movement path corrected by the movement data creation unit from the compressed command path. 6. The numerical control device according to the second or third aspect of the invention, wherein the execution of the program line number display and the remaining of each axis of the execution path are performed based on the pre-compression command path held by the command path storage unit. The distance between the display and the next path of the next path of the currently executing path is displayed. 7. A numerical control device comprising: an interpolation processing unit that performs interpolation based on a corrected tool movement path for a compressed command path that is connected by a plurality of consecutive pre-compression pre-command path paths; The tool used moves the data, and the tool path that has been corrected by the pre-compression command path is interpolated to find the tool position. 8. A kind of numerical control device, which is equipped with: 29 322038R01 201126294 Α Γ ^ ^ ^ , , , , , , , , , , , ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ 29 29 Lu Huan path correction _ made #料, and the above-mentioned compressed money to make the road miscellaneous path, and to make the tool movement data to be used for the identification of the moving path of the protective gear; and the work made by the mobile data creation department For the attack, the interpolation is performed from the "corrected command path" and the 9. axis path is interpolated to obtain the tool position. , = type = system, with mobile data calculation device and numerical control loading and closing movement data calculation device It has: a tool moving path, and making a moving data for the tool to be used in the above-mentioned μ; the money "moving path interpolation tool tool moving data storage department, the former tool (four) capital storage tool The numerical control device is provided with: 'Μmoving data' for the aforementioned compression front finger 15 based on "moving with a moving path, in order to obtain the corrected work of the second industry" £15 tool position, the aforementioned mobile data calculation device &amp; with mobile data stored in the above-mentioned work and the above-mentioned work-moving-beech buffer, the aforementioned value 32203 8R01 30 201126294 control device is stored in the aforementioned tool The tool moving data of the data buffer is used to interpolate the corrected tool movement path of the pre-compression command path to obtain the tool position. 10. A production system having a compressed shape calculation device and a numerical control device The compressed shape calculation device includes: a compression processing unit that creates a compressed command path obtained by connecting a plurality of consecutive pre-compression pre-compression path start points and end points; and a compressed command path storage unit The compressed command path is saved to the compressed command path buffer; and the path correction and action data storage unit saves the path correction and motion data of the compressed command path created by the compression processing unit to the path correction and motion data buffer. , the aforementioned value The apparatus includes: a movement data creation unit that corrects the compressed command path to the tool movement path based on the path correction and motion data, and creates tool movement data to be used for interpolation of the tool movement path; and interpolation The processing unit calculates the tool position by interpolating the tool movement path corrected by the movement data creation unit based on the tool movement data created by the movement data creation unit, and the compressed shape calculation device is pre-processed before processing. The compressed command path and the path correction and motion data are respectively stored in the compressed command path buffer and the path correction and operation 31 322038R01 201126294 data buffer, and the numerical control device is buffered according to the path correction data stored in the path. The path correction and action data and storage of the device are as follows: the aforementioned compressed post-command path slowing down the lungs, the compressed instruction road making tool moves the data, and the modified tool path is corrected according to the tool moving data. Moving path interpolation, the tool position is determined. The production system of the ninth or tenth aspect of the patent, wherein the step of the step of shrinking is to stop at the end of the command path before the compression, or at the end of the command path before each compression. In the case of the operation mode in which the speed is reduced and stopped, a single pre-compression command path is regarded as a compressed command path. The production system of claim 9 or claim 1, wherein the interpolation processing unit is a tool for each interpolation period based on a cumulative path length reference of a tool movement = diameter without compression. The amount of movement is: a standardized movement amount standardized by standardization, and a standardized path K' obtained by standardizing the path length before compression of the pre-compression command path buffer stored in the pre-compression command path buffer. The establishment of the correspondence between the tool movement path and the pre-compression command path. &quot;', 13' $ applies for the production system of the first or second item of the patent range, wherein the mobile data creation unit is corrected from the compressed command path according to the description The tool moves the path and performs the operation check of the aforementioned processing program. 14· The production system of claim 10 or 11, wherein the pre-compression command path saved by the instruction path storage unit according to 322038R01 32 201126294 is Performing the execution of the program line number display, the remaining distance display of each axis of the execution path, and now Each axis moving distance to the next row in the path display. 33 32203 8R01