Methods, apparatus, equipment, and readable storage media for determining tool specifications

Abstract

This invention discloses a method, apparatus, device, and readable storage medium for determining tool specifications, relating to the field of threaded hole machining technology. This invention determines the thread diameter of a hard material threaded hole to be machined. Based on a preset relationship between tool specifications and thread diameter, the tool specification corresponding to the thread diameter of the hard material threaded hole is determined. Since this preset relationship is obtained by fitting the thread diameters of various experimental hard material threaded holes and the experimental tool specification that takes the shortest actual machining time for each experimental hard material threaded hole, the tool specification corresponding to the thread diameter of the hard material threaded hole determined according to this preset relationship can be considered as the tool specification with the shortest machining time for the hard material threaded hole. This results in a thread end mill with high efficiency in machining hard material threaded holes, and using a thread end mill with this tool specification can improve machining efficiency.

Description

Technical Field

[0001] This invention relates to the field of threaded hole machining technology, and in particular to a method, apparatus, equipment, and readable storage medium for determining tool specifications. Background Technology

[0002] Hard material threaded holes are mostly machined using electrical discharge machining (EDM) machines. However, EDM is slow and inefficient. For example, machining a single hard material threaded hole with a depth of 12.5 mm takes about 22 minutes.

[0003] Installing a thread milling cutter on a CNC machine tool to mill threaded holes in hard materials can improve machining efficiency, but the tool needs to be designed and manufactured before machining.

[0004] Since different specifications of cutting tools have different processing efficiencies, if the cutting tool is not designed properly, it will result in low processing efficiency. In practice, it is common for improperly designed cutting tools to lead to low processing efficiency. Summary of the Invention

[0005] This invention solves the technical problem of how to design a thread end mill that is highly efficient for machining threaded holes in hard materials by providing a method, apparatus, device, and readable storage medium for determining tool specifications.

[0006] On the one hand, the present invention provides the following technical solution:

[0007] A method for determining cutting tool specifications includes:

[0008] Determine the thread diameter of the threaded hole in the hard material to be machined;

[0009] Based on the preset relationship between tool specifications and thread diameter, determine the tool specifications corresponding to the thread diameter of the threaded hole of the hard material to be machined;

[0010] The preset relationship is obtained by fitting the thread diameter of various experimental hard material threaded holes and the corresponding experimental tool specifications. The experimental tool specifications are the thread milling cutter specifications that have historically taken the shortest actual time to process the corresponding experimental hard material threaded holes.

[0011] Optional, tool specifications include cutting diameter;

[0012] Based on the preset relationship between tool specifications and thread diameter, determine the tool specifications corresponding to the thread diameter of the threaded hole in the hard material to be machined, including:

[0013] Based on the linear relationship between the cutting edge diameter and the thread diameter, determine the cutting edge diameter corresponding to the thread diameter of the threaded hole in the hard material to be machined.

[0014] Optionally, the linear relationship is D2 = ax - b; where D2 is the cutting diameter, x is the thread diameter, a ranges from 0.80 to 0.90, and b ranges from 0.10 to 0.20.

[0015] Optional, tool specifications include shank diameter;

[0016] Based on the preset relationship between tool specifications and thread diameter, determine the tool specifications corresponding to the thread diameter of the threaded hole in the hard material to be machined, including:

[0017] Based on the exponential function relationship between the shank diameter and the thread diameter, determine the shank diameter corresponding to the thread diameter of the threaded hole in the hard material to be machined.

[0018] Optionally, the exponential function relationship is D = c × d x -e; where D is the shank diameter, x is the thread diameter, c ranges from 42.0 to 43.0, d ranges from 1.00 to 1.10, and e ranges from 41.00 to 42.00.

[0019] Optionally, the tool specifications include the effective length;

[0020] Based on the preset relationship between tool specifications and thread diameter, determine the tool specifications corresponding to the thread diameter of the threaded hole in the hard material to be machined, including:

[0021] Based on the quadratic function relationship between the effective length and the thread diameter, determine the effective length corresponding to the thread diameter of the threaded hole in the hard material to be machined.

[0022] Optional, the tool specifications include the cutting length of the working part;

[0023] Based on the preset relationship between tool specifications and thread diameter, determine the tool specifications corresponding to the thread diameter of the threaded hole in the hard material to be machined, including:

[0024] Based on the quadratic function relationship between the working part cutting edge length and the thread diameter, determine the working part cutting edge length corresponding to the thread diameter of the threaded hole of the hard material to be machined.

[0025] On the other hand, the present invention also provides the following technical solution:

[0026] A tool specification determining device, comprising:

[0027] The first determining module is used to determine the thread diameter of the threaded hole in the hard material to be processed;

[0028] The second determining module is used to determine the tool specification corresponding to the thread diameter of the threaded hole of the hard material to be machined, based on the preset relationship between the tool specification and the thread diameter.

[0029] The preset relationship is obtained by fitting the thread diameter of various experimental hard material threaded holes and the corresponding experimental tool specifications. The experimental tool specifications are the thread milling cutter specifications that have historically taken the shortest actual time to process the corresponding experimental hard material threaded holes.

[0030] On the other hand, the present invention also provides the following technical solution:

[0031] A computer device includes a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of any of the tool specification determination methods described above.

[0032] On the other hand, the present invention also provides the following technical solution:

[0033] A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the tool specification determination methods described above.

[0034] On the other hand, the present invention also provides the following technical solution:

[0035] A computer program product includes a computer program that, when executed by a processor, implements the steps of any of the tool specification determination methods described above.

[0036] One or more technical solutions provided by this invention have at least the following technical effects or advantages:

[0037] This invention determines the thread diameter of the threaded hole in the hard material to be machined. Based on a preset relationship between the tool specification and the thread diameter, the tool specification corresponding to the thread diameter of the threaded hole in the hard material to be machined is determined. Since this preset relationship is obtained by fitting the thread diameter of various experimental hard material threaded holes and the experimental tool specification that takes the shortest actual time to machine each experimental hard material threaded hole, the tool specification corresponding to the thread diameter of the threaded hole in the hard material to be machined determined according to this preset relationship can be considered as the tool specification that takes the shortest time to machine the threaded hole in the hard material to be machined. In other words, a thread end mill with high efficiency in machining the threaded hole in the hard material to be machined is obtained. Using a thread end mill with this tool specification to machine the threaded hole in the hard material to be machined can improve the machining efficiency. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of a thread milling cutter in an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram illustrating the relationship between the cutting diameter of the thread milling cutter and the thread diameter of the threaded hole in an embodiment of the present invention.

[0041] Figure 3 This is a schematic diagram of the relationship curve between the shank diameter of the thread milling cutter and the thread diameter of the threaded hole in an embodiment of the present invention.

[0042] Figure 4 This is a schematic diagram showing the relationship between the effective length of the thread milling cutter and the thread diameter of the threaded hole in an embodiment of the present invention.

[0043] Figure 5 This is a schematic diagram showing the relationship between the cutting length of the working part of the thread milling cutter and the thread diameter of the threaded hole in an embodiment of the present invention.

[0044] Figure 6 This is a flowchart of the tool specification determination method in an embodiment of the present invention;

[0045] Figure 7 This is a schematic diagram of the tool specification determination device in an embodiment of the present invention.

[0046] Explanation of reference numerals in the attached figures:

[0047] 10 - Handle; 20 - Blade. Detailed Implementation

[0048] The embodiments of the present invention solve the technical problem of how to design a thread end mill with high efficiency for machining threaded holes in hard materials by providing a method, apparatus, device and readable storage medium for determining tool specifications.

[0049] To better understand the technical solution of the present invention, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] like Figure 1 As shown, the thread milling cutter includes an integrally formed shank 10 and cutting edge 20. The main specifications of the cutter include the total length L, the effective length L1, and the cutting edge length L of the working part. e The shank diameter D and the cutting diameter D2, where the effective length L1 and the working part cutting length L e Both the shank diameter D and the cutting diameter D2 affect the efficiency of machining threaded holes in hard materials. The thread end mills manufactured in the embodiments of the present invention have a total length L of 50 mm, a number of flutes of 4, and are machined from Cr12MoV materials.

[0051] In this embodiment of the invention, multiple cutting tools with different cutting diameters D2, effective lengths L1, and working part lengths L were first manufactured. eExperimental thread end mills with the same shank diameter D were used to machine M3 threaded holes in Cr12MoV hard material. The time taken for each experimental thread end mill to machine the M3 threaded hole was recorded.

[0052] When machining threaded holes in Cr12MoV hard material using an experimental thread milling cutter, the thread milling cutter needs to be mounted on the spindle of a CNC machine tool first. Then, the spindle speed is set using the M03S command, the feed rate is set using the G01F command (G01 is linear feed, F is feed rate), and the machining depth is set using the G01Z command (G01 is linear feed, Z is machining depth in the Z direction).

[0053] For example, when machining M3 threaded holes with various experimental thread end mills, the spindle speed n was 4800 r / min, the feed rate was 45 mm / min, the feed per revolution was 0.01 mm / r, and the machining depth was 10.5 mm. The spindle speed was set to 4800 r / min using the M03S4800 command, the feed rate was set to 45 mm / min using the G01F45 command, and the machining depth was set to 10.5 mm using the G01Z10.5 command. According to the cutting speed V = πD2n / 1000, the cutting speed is different for each experimental thread end mill due to the different cutting diameter D2.

[0054] The final statistical results of the time taken to process M3 threaded holes with thread milling cutters in each experiment showed that the processing time was shortest when the cutting diameter D2 was 2.5mm.

[0055] Similarly, multiple shank diameters D, cutting diameters D2, effective lengths L1, and working part lengths L can be manufactured. e Identical thread end mills were used for all experiments. M3 threaded holes were machined in Cr12MoV hard material using each thread end mill, and the machining time for each end mill was recorded. The rotational speed (n) for machining M3 threaded holes was 4800 r / min, the feed rate was 45 mm / min, the feed per revolution was 0.01 mm / r, the cutting speed was 38 m / min, and the depth of cut was 10.5 mm. The statistical results showed that the machining time was shortest when the shank diameter (D) was 4 mm.

[0056] Similarly, multiple blades with different effective lengths L1, cutting diameters D2, shank diameters D, and working part lengths L can be manufactured. eIdentical thread end mills were used for all experiments. M3 threaded holes were machined in Cr12MoV hard material using each thread end mill, and the machining time for each end mill was recorded. The rotational speed n was 4800 r / min, the feed rate was 45 mm / min, the feed per revolution was 0.01 mm / r, the cutting speed was 38 m / min, and the depth of cut was 10.5 mm. The statistical results showed that the shortest machining time was achieved when the effective length L1 was 11 mm.

[0057] Similarly, to create multiple working parts with a blade length L e Different experimental thread end mills with the same cutting diameter D2, shank diameter D, and effective length L1 were used to machine M3 threaded holes in Cr12MoV hard material. The time taken for each experimental thread end mill to machine the M3 threaded hole was recorded. The rotational speed n for machining the M3 threaded hole was 4800 r / min, the feed rate was 45 mm / min, the feed per revolution was 0.01 mm / r, the cutting speed was 38 m / min, and the depth of cut was 10.5 mm. The final statistical results of the time taken for machining the M3 threaded hole with each experimental thread end mill showed that, with a cutting diameter L1 of [missing information], [missing information]. e The processing time is shortest when the thickness is 2mm.

[0058] Experiments were conducted on machining M4, M5, M6, M8, M10, M12, M14, M16, M18, and M20 threaded holes, using the same methods as the M3 threaded hole machining experiment described above. The rotational speed, feed rate, feed per revolution, cutting speed, and depth of machining for each type of threaded hole are shown in Table 1.

[0059] Table 1

[0060]

[0061] The statistical results of the machining time of various threaded holes using thread end mills in various experiments show that the cutting diameter D2, shank diameter D, effective length L1, and working part cutting length L are the factors that result in the shortest machining time for various threaded holes. e As shown in Table 2.

[0062] Table 2

[0063]

[0064]

[0065] The cutting diameter D2 with the shortest machining time for various threaded holes is fitted to the thread diameter of each threaded hole to obtain the following result: Figure 2The curve showing the relationship between the cutting diameter D2 and the thread diameter x has the analytical expression D2 = ax - b, where the value of a ranges from 0.80 to 0.90, and the value of b ranges from 0.10 to 0.20. a can be 0.82, and b can be 0.12, that is, D2 = 0.82x - 0.12.

[0066] By fitting the shank diameter D with the shortest machining time for various threaded holes to the thread diameter of each threaded hole, the following results are obtained: Figure 3 The curve showing the relationship between the shank diameter D and the thread diameter x has the analytical expression D = c × d. x -e, where c ranges from 42.0 to 43.0, d ranges from 1.00 to 1.10, and e ranges from 41.00 to 42.00. c can be 42.6, d can be 1.02, and e can be 41.42, meaning D = 42.6 × 1.02. x -41.42.

[0067] The effective length L1, which minimizes the machining time for various threaded holes, is fitted to the thread diameter of each hole to obtain the following result: Figure 4 The curve showing the relationship between the effective length L1 and the thread diameter x has the analytical expression L1 = -fx. 2 +g x+h, where f ranges from 0.01 to 0.02, g ranges from 1.40 to 1.50, and h ranges from 6.0 to 7.0. f can be 0.01, g can be 1.45, and h can be 6.5, meaning L1 = -0.01x 2 +1.45x+6.5.

[0068] The shortest cutting length L for machining various threaded holes e By fitting the thread diameter to various threaded holes, the following results are obtained: Figure 5 The working part shown has a cutting length L. e The relationship curve between Le and the thread diameter x is expressed by the equation Le = -ix. 2 +j xk, where i ranges from 0.01 to 0.02, j ranges from 0.60 to 0.70, and k ranges from 0.20 to 0.30. i can be 0.01, j can be 0.63, and k can be 0.2, i.e., Le = -0.01x 2 +0.63x-0.2.

[0069] It can be seen that the cutting diameter D2, shank diameter D, effective length L1, and working part cutting length L have the shortest machining time. e All of these are strongly correlated with the thread diameter of the threaded hole. Based on the obtained relationship, the cutting diameter D2, shank diameter D, effective length L1, and working part cutting length L of the tool for machining the threaded hole of the hard material to be machined can be designed. eThis ensures a shorter processing time.

[0070] If the threaded hole to be machined is an M20 threaded hole, then x = 20mm. Based on the above relationship, the tool specifications are: cutting diameter D2 = 0.82x - 0.12 = 16.3mm, shank diameter D = 42.6 × 1.02 mm. x -41.42 = 22mm, effective length L1 = -0.01x 2 +1.45x + 6.5 = 31.5mm, Working part cutting length Le = -0.01x 2 +0.63x-0.2=8.4mm.

[0071] Experiments were conducted to verify the design of a tool for machining M20 threaded holes based on the relational formula. During the experiment, the rotational speed, feed rate, feed per revolution, cutting speed, and depth of cut for machining M20 threaded holes were set to 1800 r / min, 180 mm / min, 0.01 mm / r, 99 m / min, and 80 m / min, respectively. The experimental results show that the machining time for M20 threaded holes using the designed tool can be guaranteed to be minimal across all parameters.

[0072] Based on the experimental results above, we obtain the following: Figure 6 The tool specification determination method of the present invention shown in this embodiment includes:

[0073] Step S1: Determine the thread diameter of the threaded hole in the hard material to be machined;

[0074] The threaded hole of the hard material to be processed can be one of a series of threaded holes such as M1, M2, M3, M22, etc., and the thread diameter can be 1mm, 2mm, 3mm or 22mm.

[0075] The threaded hole to be processed can be selected by the user on the terminal. For example, the drop-down menu includes all sizes of threaded holes, so a certain size of threaded hole can be selected as the threaded hole to be processed.

[0076] Step S2: Determine the tool specification corresponding to the thread diameter of the threaded hole of the hard material to be machined based on the preset relationship between the tool specification and the thread diameter.

[0077] The preset relationship is obtained by fitting the thread diameter of various experimental hard material threaded holes and the corresponding experimental tool specifications. The experimental tool specifications are the thread milling cutter specifications that have historically taken the shortest actual time to process the corresponding experimental hard material threaded holes.

[0078] Wherein, if the tool specification includes the cutting diameter, the preset relationship between the tool specification and the thread diameter includes the preset relationship between the cutting diameter and the thread diameter; if the tool specification includes the shank diameter, the preset relationship between the tool specification and the thread diameter includes the preset relationship between the shank diameter and the thread diameter; if the tool specification includes the effective length, the preset relationship between the tool specification and the thread diameter includes the preset relationship between the effective length and the thread diameter; if the tool specification includes the working part cutting length, the preset relationship between the tool specification and the thread diameter includes the preset relationship between the working part cutting length and the thread diameter.

[0079] Among them, the experimental hard material threaded hole is the hard material threaded hole in the experiment conducted above to obtain the relationship curve between the tool specification and the thread diameter. For example, when the experimental hard material threaded hole is an M3 threaded hole, the corresponding experimental specifications are a cutting diameter of 2.5 mm, a shank diameter of 4 mm, an effective length of 11 mm, and a working part cutting length of 2 mm.

[0080] Understandably, the preset relationship is obtained by fitting the thread diameter of various experimental hard material threaded holes and the experimental tool specification that takes the shortest actual time to process each experimental hard material threaded hole. Therefore, the tool specification corresponding to the thread diameter of the hard material threaded hole to be processed determined according to the preset relationship can be considered as the tool specification that takes the shortest time to process the hard material threaded hole to be processed. In other words, a thread end mill with high efficiency in processing the hard material threaded hole to be processed is obtained. Using the thread end mill with this tool specification to process the hard material thread can improve the processing efficiency.

[0081] In some implementations, the tool specification may include the cutting diameter, then step S2 may include:

[0082] Based on the linear relationship between the cutting edge diameter and the thread diameter, determine the cutting edge diameter corresponding to the thread diameter of the threaded hole in the hard material to be machined.

[0083] In some implementations, the linear relationship can be D2 = ax - b; where D2 is the cutting diameter, x is the thread diameter, a ranges from 0.80 to 0.90, and b ranges from 0.10 to 0.20. In some implementations, a can be 0.82, and b can be 0.12, i.e., D2 = 0.82x - 0.12; for example, when x = 1, we get D2 = 0.7; for example, when x = 2, we get D2 ≈ 1.5.

[0084] In some implementations, the tool specification may include the shank diameter, then step S2 may include:

[0085] Based on the exponential function relationship between the shank diameter and the thread diameter, determine the shank diameter corresponding to the thread diameter of the threaded hole in the hard material to be machined.

[0086] In some implementations, the exponential function relationship can be D = c × dx -e; where D is the shank diameter, x is the thread diameter, c ranges from 42.0 to 43.0, d ranges from 1.00 to 1.10, and e ranges from 41.00 to 42.00. In some embodiments, c can be 42.6, d can be 1.02, and e can be 41.42, i.e., D = 42.6 × 1.02 x -41.42; For example, when x = 1, we get D ≈ 2; For example, when x = 2, we get D ≈ 3.

[0087] In some implementations, the tool specification may include the effective length, then step S2 may include:

[0088] Based on the quadratic function relationship between the effective length and the thread diameter, determine the effective length corresponding to the thread diameter of the threaded hole in the hard material to be machined.

[0089] In some implementations, the quadratic function relationship between the effective length and the thread diameter can be L1 = -fx 2 L1 = -0.01x + h; where L1 is the effective length, x is the thread diameter, f ranges from 0.01 to 0.02, g ranges from 1.40 to 1.50, and h ranges from 6.0 to 7.0. f can be 0.01, g can be 1.45, and h can be 6.5, i.e., L1 = -0.01x 2 +1.45x+6.5; For example, when x=1, we get L1≈8; for example, when x=2, we get L1≈9.

[0090] In some implementations, the tool specifications may include the cutting length of the working portion, then step S2 may include:

[0091] Based on the quadratic function relationship between the working part cutting edge length and the thread diameter, determine the working part cutting edge length corresponding to the thread diameter of the threaded hole of the hard material to be machined.

[0092] In some implementations, the quadratic function relationship between the cutting length of the working part and the thread diameter can be Le = -ix. 2 +j xk; where Le is the cutting length of the working part, x is the thread diameter, i ranges from 0.01 to 0.02, j ranges from 0.60 to 0.70, and k ranges from 0.20 to 0.30. i can be 0.01, j can be 0.63, and k can be 0.2, i.e., Le = -0.01x 2 +0.63x-0.2; For example, when x=1, we get Le≈0.4; for example, when x=2, we get Le≈1.

[0093] like Figure 7 As shown, embodiments of the present invention also provide a tool specification determination device, including:

[0094] The first determining module is used to determine the thread diameter of the threaded hole in the hard material to be processed;

[0095] The second determining module is used to determine the tool specification corresponding to the thread diameter of the threaded hole of the hard material to be machined, based on the preset relationship between the tool specification and the thread diameter.

[0096] The preset relationship is obtained by fitting the thread diameter of various experimental hard material threaded holes and the corresponding experimental tool specifications. The experimental tool specifications are the thread milling cutter specifications that have historically taken the shortest actual time to process the corresponding experimental hard material threaded holes.

[0097] In some implementations, the tool specification may include the cutting diameter;

[0098] The second determining module can be specifically used for:

[0099] Based on the linear relationship between the cutting edge diameter and the thread diameter, determine the cutting edge diameter corresponding to the thread diameter of the threaded hole in the hard material to be machined.

[0100] In some implementations, the linear relationship can be D2 = ax - b; where D2 is the cutting diameter, x is the thread diameter, a ranges from 0.80 to 0.90, and b ranges from 0.10 to 0.20.

[0101] In some implementations, the tool specification may include the shank diameter;

[0102] The second determining module can be specifically used for:

[0103] Based on the exponential function relationship between the shank diameter and the thread diameter, determine the shank diameter corresponding to the thread diameter of the threaded hole in the hard material to be machined.

[0104] In some implementations, the exponential function relationship can be D = c × d x -e; where D is the shank diameter, x is the thread diameter, c ranges from 42.0 to 43.0, d ranges from 1.00 to 1.10, and e ranges from 41.00 to 42.00.

[0105] In some implementations, the tool specifications may include the effective length;

[0106] The second determining module can be specifically used for:

[0107] Based on the quadratic function relationship between the effective length and the thread diameter, determine the effective length corresponding to the thread diameter of the threaded hole in the hard material to be machined.

[0108] In some implementations, the tool specifications may include the cutting length of the working portion;

[0109] The second determining module can be specifically used for:

[0110] Based on the quadratic function relationship between the working part cutting edge length and the thread diameter, determine the working part cutting edge length corresponding to the thread diameter of the threaded hole of the hard material to be machined.

[0111] Based on the same inventive concept as the tool specification determination method described above, this embodiment of the invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of any of the tool specification determination methods described above.

[0112] Since the computer device described in this embodiment of the invention is the computer device used to implement the tool specification determination method in this embodiment of the invention, those skilled in the art can understand the specific implementation methods and various variations of the computer device in this embodiment of the invention based on the tool specification determination method described in this embodiment of the invention. Therefore, how the computer device implements the method in this embodiment of the invention will not be described in detail here. Any computer device used by those skilled in the art to implement the tool specification determination method in this embodiment of the invention falls within the scope of protection of this invention.

[0113] Based on the same inventive concept as the tool specification determination method described above, the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the tool specification determination methods described above.

[0114] Based on the same inventive concept as the tool specification determination method described above, the present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of any of the tool specification determination methods described above.

[0115] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0116] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 The computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0117] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0118] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0119] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method for determining the specifications of a cutting tool, characterized in that, include: Determine the thread diameter of the threaded hole in the hard material to be machined; Based on the preset relationship between the tool specification and the thread diameter, the tool specification corresponding to the thread diameter of the threaded hole of the hard material to be machined is determined; The preset relationship is obtained by fitting the thread diameter of various experimental hard material threaded holes and the corresponding various experimental tool specifications. The experimental tool specifications are the thread milling cutter specifications that have historically taken the shortest actual time to process the corresponding experimental hard material threaded holes. The tool specification includes the shank diameter; determining the tool specification corresponding to the thread diameter of the threaded hole of the hard material to be machined based on the preset relationship between the tool specification and the thread diameter includes: The shank diameter corresponding to the thread diameter of the threaded hole to be machined is determined based on the exponential function relationship between the shank diameter and the thread diameter. Wherein, the exponential function relationship is: ;in, Let x be the shank diameter, x be the thread diameter, c be in the range of 42.0~43.0, d be in the range of 1.00~1.10, and e be in the range of 41.00~42.

00.

2. The tool specification determination method as described in claim 1, characterized in that, The tool specification includes the cutting diameter; determining the tool specification corresponding to the thread diameter of the threaded hole of the hard material to be machined, based on a preset relationship between the tool specification and the thread diameter, includes: Based on the linear relationship between the cutting edge diameter and the thread diameter, the cutting edge diameter corresponding to the thread diameter of the threaded hole of the hard material to be machined is determined.

3. The method for determining tool specifications as described in claim 2, characterized in that, The linear relationship is as follows: ;in, Let x be the cutting edge diameter, x be the thread diameter, a be in the range of 0.80~0.90, and b be in the range of 0.10~0.

20.

4. The method for determining tool specifications as described in claim 1, characterized in that, The tool specifications include the effective length; The step of determining the tool specification corresponding to the thread diameter of the threaded hole of the hard material to be machined based on the preset relationship between the tool specification and the thread diameter includes: The effective length corresponding to the thread diameter of the threaded hole in the hard material to be processed is determined based on the quadratic function relationship between the effective length and the thread diameter.

5. The method for determining tool specifications as described in claim 1, characterized in that, The tool specifications include the cutting length of the working part; The step of determining the tool specification corresponding to the thread diameter of the threaded hole of the hard material to be machined based on the preset relationship between the tool specification and the thread diameter includes: Based on the quadratic function relationship between the working part cutting edge length and the thread diameter, the working part cutting edge length corresponding to the thread diameter of the threaded hole of the hard material to be processed is determined.

6. A tool specification determining device, characterized in that, include: The first determining module is used to determine the thread diameter of the threaded hole in the hard material to be processed; The second determining module is used to determine the tool specification corresponding to the thread diameter of the threaded hole of the hard material to be processed, based on a preset relationship between the tool specification and the thread diameter. The preset relationship is obtained by fitting the thread diameter of various experimental hard material threaded holes and the corresponding various experimental tool specifications. The experimental tool specifications are the thread milling cutter specifications that have historically taken the shortest actual time to process the corresponding experimental hard material threaded holes. The tool specification includes the shank diameter; determining the tool specification corresponding to the thread diameter of the threaded hole of the hard material to be machined based on the preset relationship between the tool specification and the thread diameter includes: The shank diameter corresponding to the thread diameter of the threaded hole to be machined is determined based on the exponential function relationship between the shank diameter and the thread diameter. Wherein, the exponential function relationship is: ;in, Let x be the shank diameter, x be the thread diameter, c be in the range of 42.0~43.0, d be in the range of 1.00~1.10, and e be in the range of 41.00~42.

00.

7. A computer device, characterized in that, The method includes a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method according to any one of claims 1-5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method described in any one of claims 1-5.

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