Method for machining a hole by archimedes helical milling with a modular macro program

Abstract

The present application relates to machine tool hole position processing, and discloses a kind of modular macro program archimedes spiral milling hole processing method, comprising the following steps: processing process analysis: the blank material of the workpiece needing to be processed hole is analyzed;Pre-processing: lower knife hole is processed in the preset position of the workpiece;Establish program module: the subroutine model of milling is established as program 2, and the program 2 established is solidified in machine tool system;The workpiece is processed: establish macro program as main program 1, input macro instruction in the main program 1, variable assignment is carried out to the program 2 and the program 2 is called, and the main program 1 is according to the program control numerical control machine tool of the program 2 called to complete the milling of hole.The method is simple, easy to operate, easy to learn, saves processing time, improves processing efficiency.

Description

Technical Field

[0001] This invention relates to machine tool hole machining, specifically to a method for machining holes using Archimedes spiral milling with a modular macro program. Background Technology

[0002] In CNC machining, manual programming offers numerous advantages, including concise programming, fast creation speed, strong adaptability, ease of learning, and ease of modification. Therefore, many non-mold processing companies still primarily use manual programming for their CNC machine tools, and most operators are also programmers. However, when parts have complex shapes or unique toolpaths, it's difficult to program quickly without specialized expertise. For example, when machining large holes with a milling cutter, manual programming typically only allows for axial helical milling. To improve milling efficiency, planar helical milling using the side edge of the milling cutter can achieve a similar high-speed dynamic milling effect to CAM (Computer-Aided Manufacturing) software. However, this requires a high level of programming skill from the operator, involving extensive calculations and other operations. This high level of programming ability makes the operation difficult and significantly reduces machining efficiency.

[0003] Therefore, a new modular macro program method for Archimedes spiral milling of holes needs to be designed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a method for machining holes by Archimedes spiral milling using a modular macro program. This method is simple, easy to operate, easy to learn, saves machining time, and improves machining efficiency.

[0005] To address the aforementioned technical problems, this invention provides a method for machining holes using Archimedean spiral milling with a modular macro program, comprising the following steps:

[0006] Machining process analysis: Analyze the blank material of the workpiece that needs to be machined;

[0007] Pre-machining: Machining a cutting hole at a preset position on the workpiece;

[0008] Establish program module: Establish a subroutine model for milling as program 2, and solidify the established program 2 into the machine tool system;

[0009] To process the workpiece: a macro program is created as the main program 1. Macro instructions are input into the main program 1. Variables are assigned to the program 2 and the program 2 is called. The main program 1 controls the CNC machine tool to complete the milling of the hole according to the program of the called program 2.

[0010] Furthermore, the process analysis includes the following steps:

[0011] The blank size and material of the workpiece that needs to be machined are analyzed, and a suitable cutting tool is selected and the machining parameters are determined based on the blank structural characteristics of the workpiece.

[0012] Furthermore, the diameter of the cutting tool is 1 to 3 mm smaller than the diameter of the lower cutting hole.

[0013] Furthermore, a coordinate system is established with the center of the lower cutting hole as the origin, which is the corresponding coordinate system required for the operation of program 2.

[0014] Furthermore, the program of program 2 can control the tool to perform hole milling along the trajectory of the Archimedean spiral curve.

[0015] Furthermore, the main program 1 assigns variable values ​​by setting the initial position of the hole to be machined, the machining depth, the helical step distance, the diameter of the tool, the diameter of the hole to be machined, the machining speed, and the machining feed rate.

[0016] Furthermore, the milling process in program 2 is as follows: First, a coordinate system is established with the center of the lower hole as the origin, tool setting is completed and the initial values ​​of various machining parameters are determined. Then, it is determined whether the selected tool matches the hole to be machined. After determining that they match, the coordinates of the next point to be cut by the tool are calculated using a calculation formula. When the tool reaches that point, the above calculation steps are repeated to calculate the coordinates of the next point and to perform machining until the total amount of the machined helical step is less than half the difference between the diameter of the hole to be machined and the diameter of the tool. Then, the calculation steps are stopped. Finally, the maximum radius value of the hole to be machined is selected for full circle interpolation machining.

[0017] Furthermore, the program 2 calculates the coordinates (x, y) of each point on the Archimedean spiral curve in the coordinate system using the formulas: #21=#2*(#11+n#17)*COS(#11+n#17) and #22=#2*(#11+n#17)*SIN(#11+n#17), where the coordinate x is #21, the coordinate y is #22, #2 is the spiral step size in the Archimedean spiral curve, #11 is the initial step size value, n is the number of times the machining program segment in the program 2 is cyclical, and #17 is the initial angle value.

[0018] Furthermore, the program 2 also includes judgment statements, which include error-proofing judgment statements that can verify the operation of the program 2. These error-proofing judgment statements determine whether the program should continue running by comparing #6 with #7*1.1. When #6 is less than #7*1.1, the error-proofing judgment statement determines that the program is running incorrectly and terminates the program; when #6 is not less than #7*1.1, the error-proofing judgment statement determines that the program is running correctly and continues the program. Here, #6 is the diameter of the hole to be machined, and #7 is the diameter of the cutting tool.

[0019] Furthermore, the judgment statement also includes a loop judgment statement for judging whether to continue the machining program segment loop. The loop judgment statement judges whether to continue the machining program segment loop based on the size of #15 and #18. When #15 is less than #18, the machining program segment loop continues. Here, #15 is the total amount of the machined helical step pitch, and #18 is half of the difference between the diameter of the hole to be machined and the diameter of the tool.

[0020] The beneficial effects of the present invention through the above technical solution are as follows:

[0021] This invention provides a modular macro program method for Archimedes spiral milling of holes, comprising: machining process analysis: analyzing the blank material of the workpiece to be milled; pre-machining: machining the entry hole at a preset position on the workpiece; establishing a program module: establishing a subroutine model for milling as program 2, and fixing the established program 2 into the machine tool system; and machining the workpiece: establishing a macro program as main program 1, inputting macro instructions into main program 1, assigning variable values ​​to program 2 and calling program 2, and controlling the CNC machine tool to complete the milling of the hole according to the called program 2. This method, by setting subroutines and fixing them into the machine tool, facilitates use by machine tool operators, saves programming time, and reduces the programming skill requirements for operators. Furthermore, the method of assigning values ​​to subroutines through the main program is applicable to the machining of holes of various specifications, has a wide range of applications, is easy to operate and learn, and can greatly improve work efficiency.

[0022] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1This is a flowchart of the method for machining holes using Archimedes spiral milling with a modular macro program according to the present invention;

[0025] Figure 2 This is a schematic diagram of the tool path during the specific machining process of the Archimedes spiral milling method for machining holes using modular macro programs according to the present invention.

[0026] Explanation of reference numerals in the attached figures

[0027] 100 workpieces, 200 cutting tools

[0028] 300 running trajectory Detailed Implementation

[0029] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention, and the scope of protection of the present invention is not limited to the specific embodiments described below.

[0030] In this invention, unless otherwise stated, directional terms such as "near" and "far" are defined based on the specific direction in which the tool moves. Specifically, in the accompanying drawings provided in this invention, the orientation or positional relationship used is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention; the directional terms of this invention should be understood in conjunction with the actual installation state.

[0031] See Figure 1 This invention provides a method for machining holes using Archimedean spiral milling with a modular macro program. This method can machine holes using the Archimedean spiral curve and can reliably machine larger and deeper holes. Specifically, the steps of this method include:

[0032] Machining process analysis: Analyze the blank material of the workpiece that needs to be machined;

[0033] Pre-machining: Machining the tool hole at a preset position on the workpiece;

[0034] Establish program module: Establish a subroutine model for milling as program 2, and solidify the established program 2 into the machine tool system;

[0035] To process the workpiece: Create a macro program as the main program 1, input macro instructions in the main program 1, assign values ​​to variables in program 2 and call program 2. The main program 1 controls the CNC machine tool to complete the milling of the hole according to the program of the called program 2.

[0036] By establishing Program 2 as a subroutine model to plan the tool's trajectory, and by embedding Program 2 into the machine tool, the operator's programming time is saved. Furthermore, it reduces the operator's need for programming expertise. The method is simple and easy to operate. Before machining, the operator only needs to confirm the relevant data of the hole to be machined through the main program 1 and input it into the main program 1. Then, the operator can assign values ​​to the variables in Program 2 and call Program 2 to complete the milling of the hole.

[0037] The modular macro program method for Archimedes spiral milling of holes provided by this invention does not have a fixed order of steps. During machining, the pre-built program 2 can be first fixed into the machine tool. Then, the blank material of the workpiece to be machined is analyzed to obtain the parameters required for specific machining. If there are many workpieces to be machined, they can be pre-machined beforehand, with a tool hole machined at a preset position on each workpiece. After completing these steps, the workpiece is clamped on the machine tool, and a macro program is created as the main program 1. Macro instructions are input into the main program 1 to call and assign values ​​to the pre-fixed program 2 in the machine tool. Then, the workpiece is clamped on the machine tool, and preparation work such as tool setting is performed. Finally, the program is started to control the CNC machine tool to complete the milling of the hole. This simplifies the work and allows even operators who are not highly proficient in programming to easily complete the CNC machining of the workpiece.

[0038] Specifically, the machining process analysis steps in this method mainly include the following: analyzing the blank size and material of the workpiece requiring machining, selecting appropriate cutting tools based on the blank structural characteristics of the workpiece, and determining machining parameters. Performing a preliminary machining process analysis on the workpiece before machining provides sufficient preparation for subsequent machining, ensuring its smooth progress.

[0039] Secondly, pre-machining is also to ensure the smooth progress of subsequent machining. It is understandable that in CNC machining, in order to ensure the accuracy and efficiency of milling, the speed of the tool is relatively high. Therefore, the tool is prone to breakage when it enters the lower position. Pre-setting the lower position hole can not only ensure the accuracy of the subsequent tool positioning, but also avoid tool damage.

[0040] Furthermore, the diameter of the cutting tool is 1-3 mm smaller than the diameter of the lower cutting hole. This smaller diameter allows the tool to descend easily into the lower cutting hole. In conventional milling, axial helical milling is typically used for hole machining. When the hole diameter is large, multiple helical milling operations are required to achieve the final result. However, this process cannot fully utilize the effective side cutting edge of the tool, resulting in low machining efficiency. Since the cutting edge often contacts the workpiece first during machining, the main wear occurs at the cutting edge, significantly reducing tool life. Pre-setting the lower cutting hole allows the tool to penetrate deeply into the hole, fully utilizing its effective side cutting edge without requiring repeated machining operations. This further improves machining efficiency and prevents significant tool wear, extending tool life.

[0041] When creating the program, the center of the hole can be used as the origin to establish the corresponding coordinate system required for program 2 to run. This allows the CNC machine tool to quickly locate the pre-set position during machining, saving positioning time. It should be noted that if machining multiple holes is required, program 2 can establish corresponding coordinate systems with the center of each hole as the origin to facilitate subsequent machining.

[0042] And see also Figure 2 Program 2 controls the cutting tool to perform hole milling along the trajectory of an Archimedean spiral. An Archimedean spiral is the trajectory generated by a point moving away from a fixed point at a constant velocity while simultaneously rotating around that fixed point at a fixed angular velocity. When the cutting tool performs hole milling along the trajectory of the Archimedean spiral, as... Figure 2 As shown, in a specific embodiment of the present invention, the machining trajectory 300 of the tool 200 on the workpiece 100 is a spiral curve. Under the premise that the step distance can always remain unchanged, the machining allowance and cutting force can always be uniform, so that the tool 200 is always in a stable working state, further improving the service life of the tool 200.

[0043] In addition, for the main program 1, when assigning values ​​to variables, the initial position of the hole to be machined, the machining depth, the helical step distance, the diameter of the tool, the diameter of the hole to be machined, the machining speed, and the machining feed rate can be set in all aspects to ensure the smooth machining of the hole.

[0044] Specifically, the milling process using Program 2 involves the following steps: First, establish a coordinate system with the center of the hole as the origin to set the tool and determine the initial values ​​of various machining parameters. Then, determine if the selected tool matches the hole to be machined. After determining a match, calculate the coordinates of the next point the tool needs to reach using the following formula. When the tool reaches that point, repeat the above calculation steps, calculating the coordinates of the next point and machining until the total helical step distance is less than half the difference between the diameter of the hole to be machined and the diameter of the tool. Finally, select the maximum radius value of the hole to be machined for interpolation machining. Program 2 completes the hole machining. The reason for selecting the maximum radius value of the hole to be machined for interpolation machining is that machining using the Archimedean spiral curve as the trajectory cannot complete a full circle. Therefore, further full-circle interpolation machining is needed at the end of the machining process to ensure the accuracy of the final machined hole.

[0045] Specifically, the calculation formulas used in Program 2 are: #21=#2*(#11+n#17)*COS(#11+n#17) and #22=#2*(#11+n#17)*SIN(#11+n#17). These two formulas can be used to calculate the coordinates (x, y) of each point on the Archimedean spiral curve in the coordinate system, where the coordinate x is #21, the coordinate y is #22, #2 is the spiral step in the Archimedean spiral curve, #11 is the initial step value, n is the number of times the machining program segment in Program 2 is looped, and #17 is the initial angle value.

[0046] Because Archimedes is the trajectory of a point moving uniformly away from a fixed point while simultaneously rotating around that fixed point at a fixed angular velocity, the tool's path must be calculated during setup to determine the position of each fixed point in the corresponding coordinate system, ensuring smooth tool movement.

[0047] Furthermore, program 2 includes judgment statements, including an error-proofing judgment statement to verify the operation of program 2, and a loop judgment statement to determine whether to continue the machining program segment loop. The error-proofing judgment statement determines whether the program should continue running by comparing #6 with #7*1.1. When #6 is less than #7*1.1, the error-proofing judgment statement determines that the program is running incorrectly and terminates the program; when #6 is not less than #7*1.1, the error-proofing judgment statement determines that the program is running correctly and continues the program. Here, #6 is the diameter of the hole to be machined, and #7 is the diameter of the cutting tool. The loop judgment statement determines whether to continue the machining program segment loop by comparing the values ​​of #15 and #18. When #15 is less than #18, the machining program segment loop continues, where #15 is the total amount of helical step distance already machined, and #18 is half the difference between the diameter of the hole to be machined and the diameter of the cutting tool.

[0048] It should be noted that the error-proof judgment statement can add protection to the processing of Program 2. When it is determined that the current processing conditions are insufficient to meet the subsequent processing, the CNC machine tool will stop working in time and issue an alarm to the staff as a reminder. This not only ensures the smooth progress of processing, but also saves the staff's inspection time. The loop judgment statement can make the machine tool more intelligent and can autonomously determine whether to continue processing, replacing manual judgment. This not only improves work efficiency, but also enhances the accuracy of processing.

[0049] Furthermore, in order to better understand the method for machining holes using Archimedean spiral milling with modular macro programs provided by this invention, the following description is provided in conjunction with specific embodiments. See [link to relevant documentation]. Figure 2 First, a hole with a diameter of 28mm and a depth of 20mm needs to be machined. After preliminary analysis of the machining process, a 10mm diameter end mill is selected as the cutting tool. After initial judgment, the rotation speed is 2500r / min and the feed rate is 800mm / min.

[0050] First, create program 2 that needs to be embedded into the machine tool:

[0051]

[0052]

[0053] In this document, “O9119” is the name of program 2 embedded in the machine tool. In the program segment “G52 X#24Y#25”, “G52” represents that program 2 can be called as a subroutine, and “X#24Y#25” represents the starting point for rapid tool positioning. In a specific embodiment of this invention, the center of the tool hole is used as the origin of the corresponding coordinate system. The program segment “#11=0” refers to the initial value, and “#11” is a variable that increases sequentially as machining progresses. The program segment “#17=1” represents the initial machining angle. The program segment “#18=[#6-#7] / 2” represents the radius of the maximum interpolation arc, and “#6” represents… The radius of the hole to be machined, "#7" is the radius of the tool used; "#15" is the radius of the circle formed after the current tool movement; the program segment "IF[#6LT[#7*1.1]]GOTO88" is a conditional statement that determines whether the selected tool is suitable for machining the hole. "LT" means less than. When the diameter of the hole to be machined is less than 1.1 times the diameter of the tool, it means that the tool is incorrectly selected and machining cannot continue. The program will jump directly to the end and an alarm will be triggered to prompt the operator to change the tool; the program segment "S#19" is the rotational speed; the program segment "G01" is the rotational speed. In Z[#26]F300”, “#26” represents the depth of cut; “N10” is the starting segment number of the program segment to be looped; the program segments “#21=#2*#11*COS[#11]” to “IF[#15LT#18]GOTO10” are the program segments to be looped, where “#21” is the x-coordinate of each fixed point the tool passes through during the machining process along the Archimedean spiral curve, and is a variable; “#22” is the y-coordinate of each fixed point the tool passes through during the machining process along the Archimedean spiral curve, and is a variable. The variables "#11=#11+#17" are angle variables that increase with the number of iterations, and "#15=#15+#2" are the maximum radius of the circle after the current iteration. "#21" and "#22" can be calculated using the formulas: #21=#2*(#11+n#17)*COS(#11+n#17) and #22=#2*(#11+n#17)*SIN(#11+n#17), where #2 is the spiral step size in the Archimedean spiral curve and n is the number of iterations.Therefore, it is understandable that even without CNC machine tool calculations, the positions of each fixed point can be determined through the above two calculation formulas to complete the machining. The program segment "IF[#15LT#18]GOTO10" is a loop judgment statement. #18 is half the difference between the diameter of the hole to be machined and the diameter of the tool. Therefore, when #15 is less than #18, the machining program segment will continue to loop at "N10". When #15 is not less than #18, it means that the diameter of the hole being machined is already very close to the diameter of the hole to be machined, and there is no need to loop anymore, so it continues to run downwards. The program segment "G03I[-#21]J[-#22]F#9*0.5" is a full circle interpolation machining program segment. When the above machining program segment is not looping, the maximum radius of the hole to be machined is used as a parameter to perform interpolation machining in order to improve and refine the hole machined based on the Archimedes spiral curve.

[0054] Furthermore, the variable assignment in the main program 1 includes setting the initial position of the machined hole, machining depth, helical step distance, tool diameter, diameter of the hole to be machined, machining speed, and machining feed rate. As a specific embodiment of the present invention, the specific program of the main program is as follows:

[0055] Because the machine tool may perform other machining on the workpiece before hole machining, program segment "T1M6" is a tool change instruction; program segment "G00 G90 G54 X0 Y0" refers to rapid positioning; "G65 P9119 X0 Y0Z-20B1 D10 K28 S2500F800" calls the subroutine named "P9119" as program 2, and then assigns values ​​to the variables in program 2. In program 2 in the above specific embodiment, "X" is "#24", "Y" is "Y#25", "Z" is "#26", "B" is "#2", "D" is "#7", "K" is "#6", and "S" is "#19". The numbers after the code are the specific values ​​of each variable.

[0056] In practice, taking the machining of a ∮55mm deep 40mm blind hole, with a pre-machined ∮21mm hole as the entry hole, as an example, using a ∮20mm end mill for axial helical milling at a speed of 2500 rpm, an axial step size of 1mm, and a feed rate F of 1000mm / min, the final machining time was 235 seconds. Using the same ∮20mm end mill but modified to the same method, with a speed S of 2500 rpm, a radial step size of 1mm, and a feed rate F of 1000mm / min, the final machining time was only 106 seconds, representing a 120% increase in efficiency.

[0057] This invention provides a method for machining holes using a modular macro program in Archimedean spiral milling. The method utilizes a subroutine model that can be embedded in the machine tool system for easy operation. During use, only the macro instruction program (main program 1) needs to be edited, and then the machining is completed by calling the subroutine (program 2). This method is simple to operate, easy to modify, and highly applicable. It does not require operators to have comprehensive programming skills, resulting in low learning costs, improved production efficiency, reduced hardware and software investment, and greatly facilitates use and adjustment by frontline operators. Furthermore, the machining method provided by this invention is based on the Archimedean spiral curve, ensuring a constant step distance and thus guaranteeing uniform machining allowance and cutting force, thereby extending tool life.

[0058] It should be noted that, in addition to using a FANUC system machining center, other CNC systems (such as Siemens, Okuma, Mitsubishi, and HNC) can also be used for machining, as long as they follow the machining steps of this invention, and they also fall within the protection scope of this invention.

[0059] In the description of this invention, references to terms such as "one embodiment," "some embodiments," and "a specific implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this invention, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0061] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0062] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A method for machining holes using Archimedean spiral milling with a modular macro program, characterized in that, Includes the following steps: Processing technology analysis: The blank material of the workpiece (1) that needs to be machined is analyzed; Pre-machining: Machining a cutting hole at a preset position on the workpiece (1); Establish program module: Establish a subroutine model for milling as program 2, and solidify the established program 2 into the machine tool system; The workpiece (1) is processed as follows: a macro program is established as the main program 1, macro instructions are input into the main program 1, variables are assigned to the program 2 and the program 2 is called, and the main program 1 controls the CNC machine tool to complete the milling of the hole according to the program of the called program 2; wherein, The program 2 can control the tool (2) to perform milling of the hole along the trajectory of the Archimedean spiral curve. The milling steps in the program 2 are: First, establish a coordinate system with the center of the lower hole as the origin, complete the tool setting and determine the initial values ​​of various machining parameters, then determine whether the selected tool (2) matches the hole to be machined, and calculate the coordinates of the next point to be cut by the tool (2) after determining the match. When the tool (2) runs to the point, repeat the above calculation steps, calculate the coordinates of the next point, and perform machining until the total amount of the machined spiral step is less than half the difference between the diameter of the hole to be machined and the diameter of the tool (2). Then stop the repeat calculation steps, and select the maximum radius value of the hole to be machined for full circle interpolation machining. The calculation formula is: #21=#2 (#11+n#17) COS(#11+n#17) and #22=#2 (#11+n#17) SIN(#11+n#17) is used to calculate the coordinates (x, y) of each point on the Archimedean spiral curve in the coordinate system, where the coordinate x is #21, the coordinate y is #22, #2 is the spiral step size in the Archimedean spiral curve, #11 is the initial step size, n is the number of times the machining program segment in program 2 is iterated, and #17 is the initial angle value.

2. The method for machining holes using Archimedean spiral milling with a modular macro program according to claim 1, characterized in that, The process analysis includes the following steps: The blank size and material of the workpiece (1) that needs to be machined are analyzed, and a suitable cutting tool (2) is selected according to the blank structure characteristics of the workpiece (1) to determine the machining parameters.

3. The method for machining holes using Archimedean spiral milling with a modular macro program according to claim 1, characterized in that, The diameter of the cutting tool (2) is 1-3 mm smaller than the diameter of the lower cutting hole.

4. As described in claim 3, characterized in that, Establish the corresponding coordinate system required for the operation of program 2 with the center of the lower cutting hole as the origin.

5. The method for machining holes using Archimedean spiral milling with a modular macro program according to claim 1, characterized in that, The main program 1 assigns variable values ​​to the initial position of the hole to be processed, the processing depth, the helical step distance, the diameter of the tool (2), the diameter of the hole to be processed, the processing speed, and the processing feed rate.

6. The method for machining holes by Archimedean spiral milling using a modular macro program according to any one of claims 1 to 5, characterized in that, The program 2 also includes conditional statements, which include error-proofing statements that can verify the execution of the program 2. These error-proofing statements compare #6 and #7. 1.1 To determine whether program 2 should continue running, when #6 is less than #7. When 1.1, the error prevention judgment statement determines that program 2 is running incorrectly and terminates the execution of program 2; when #6 is not less than #7 When 1.1, the error prevention judgment sentence determines that the program 2 is running correctly and continues to run the program 2; wherein, #6 is the diameter of the hole to be processed and #7 is the diameter of the tool (2).

7. The method for machining holes using Archimedean spiral milling with a modular macro program according to claim 6, characterized in that, The judgment statement also includes a loop judgment statement to determine whether to continue the machining program segment loop. The loop judgment statement determines whether to continue the machining program segment loop based on the size of #15 and #18. When #15 is less than #18, the machining program segment loop continues. Here, #15 is the total amount of the machined helical step, and #18 is half the difference between the diameter of the hole to be machined and the diameter of the tool (2).

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