CN114888618A - Chip cleaning method for cutter in workpiece hole making process - Google Patents
Chip cleaning method for cutter in workpiece hole making process Download PDFInfo
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- CN114888618A CN114888618A CN202210420093.8A CN202210420093A CN114888618A CN 114888618 A CN114888618 A CN 114888618A CN 202210420093 A CN202210420093 A CN 202210420093A CN 114888618 A CN114888618 A CN 114888618A
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- hole making
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to the technical field of numerical control machine tool machining, in particular to a chip cleaning method for a cutter in a workpiece hole making process. Inserting a chip cleaning program into a hole making program of a numerical control machine tool to form a chip cleaning and hole making program; operating a chip cleaning and hole making program to make holes in a workpiece to be machined, namely: operating a hole making program in the chip cleaning hole making program; in the process of drilling, when the cutter needs to be cleaned, the cutter returns to the safety plane after completing the current drilling task; and operating a chip cleaning program in the chip cleaning and hole making program to perform chip cleaning treatment on the cutter, and circulating the hole making program and the chip cleaning program until the hole making work of the current workpiece is completed. This technical scheme accomplishes automatic clear bits at the in-process in work piece system hole, and the flexibility is high, can apply to flexible automation line, twines bits clearance procedure through inserting, realizes automatic clearance and twines the bits, adapts to multiple lathe and cutter, does not need artificial intervention, has improved machining efficiency and has traded the machining precision, has released the labour.
Description
Technical Field
The invention relates to the technical field of numerical control machine tool machining, in particular to a chip cleaning method for a cutter in a workpiece hole making process.
Background
In the numerical control machine tool machining, the hole making is a very common process, generally, technological methods such as drilling, expanding, reaming, boring, milling and the like are adopted, the cutter winding scraps are a phenomenon frequently seen in the numerical control machine tool hole making, particularly, a reamer is usually drilled, expanded and reamed or drilled and reamed, and for the high-precision hole machining, if the winding scraps of the reamer are not timely removed, the machining precision is influenced. At present, the whole machining process of a numerical control machine tool is continuous, a method for automatically cleaning winding scraps does not exist in the aspects of technology and equipment, and manual intervention is needed for cleaning the winding scraps in order to reduce the influence of the winding scraps on the machining precision. This will seriously affect the processing efficiency, improve the labor intensity, and is more unfavorable for the development of flexible automatic production line.
Based on the problems, the prior art discloses a device for automatically clearing bits wound by a drill bit and an operation control method, and designs a rapid chip-removing structure designed for solving the problem of bits wound by the drill bit during high-efficiency processing of a numerical control drilling machine. In addition, the patent application document with the publication number of CN107931671A in China discloses a device capable of cleaning the drilling winding scraps, which comprises an inner ring brush, a fixed support, a connecting rod, a slide way, a slide block and a base, so that the automatic and periodic cleaning of the scrap scraps in the numerical control continuous drilling process is realized, the continuity of drilling processing is improved, the processing efficiency is improved, and the labor intensity is reduced.
It can be seen that the above two prior art techniques have the following disadvantages:
the additional devices are needed to clean the winding scraps, the cost is high, the flexibility is poor, for example, for multi-position hole machining, the mounting device may need to be moved again for many times, and the machining efficiency is seriously affected; in particular, the first prior art is not applicable to a numerically controlled drilling machine only in the case of machining parts on a flexible automatic production line and using a plurality of tools on one machine tool.
Disclosure of Invention
The invention aims to provide the hole making method for automatically removing the scraps by the cutter aiming at the defects in the prior art, the whole process does not need manual intervention, the flexibility is high, the machining efficiency is high, and the machining precision of the hole is improved.
In order to achieve the purpose, the invention adopts the following specific scheme:
a chip cleaning method for a cutter in a workpiece hole making process is characterized by comprising the following steps:
s1, performing a chip winding test based on a hole making program in the numerical control machine tool to obtain the chip winding condition of the cutter;
s2, inserting a chip cleaning program into a hole making program of the numerical control machine tool according to the chip winding condition of the cutter to form a chip cleaning and hole making program;
s3, operating the chip cleaning and hole making program to make holes on the workpiece to be processed, namely:
s31, operating a hole making program in the chip cleaning and hole making program;
s32, in the hole making process, when the cutter needs to be cleaned, the cutter returns to the safety plane after completing the current hole making task;
s33, operating a chip cleaning program in the chip cleaning and hole making program; based on a chip cleaning program, stopping the cutter on a safe plane for 2-5S, and then reversely rotating the cutter at the speed of S for T time under the control action of a numerical control machine tool, wherein S is more than or equal to 3000r/min and less than or equal to 5000r/min, and T is more than or equal to 5S and less than or equal to 10S, so as to complete chip cleaning treatment of the cutter;
s34, after the chip cleaning treatment of the cutter is finished, the cutter stops rotating on the safety plane for 3-5S and then returns to the step S31;
and S35, circularly running the step S31-step S34 until the hole making work of the current workpiece is finished, and finishing the chip cleaning and hole making program.
Preferably, the tangling test comprises the following steps:
s11, selecting a cutter with a corresponding model according to the size of the hole made by the workpiece to be processed, and installing the cutter on a main shaft of a numerical control machine tool;
s12, starting a hole making program in the numerical control machine tool, and continuously making holes on the workpiece to be processed or the sample workpiece; the material of the sample workpiece and the size of the prepared hole are the same as the size of the workpiece to be processed;
and S13, observing the situation of the winding scraps on the cutter in the continuous hole making process, and manually analyzing the scrap cleaning requirement according to the situation of the winding scraps, namely determining the number n of continuous hole making before the scrap cleaning.
Preferably, in step S2, a chip cleaning program is inserted into the hole making program according to the number n of consecutive holes before chip cleaning determined in step S13, so that in step S3, the numerical control machine performs automatic chip cleaning of the tool every n consecutive holes making during operation of the chip cleaning hole making program.
Preferably, the step S33 further includes determining the time for the tool to stop rotating in the safety plane according to the hole making manner; namely, when the drilling mode is adopted, the tool stalling time is 4-5 s; when the reaming mode is adopted, the stopping time of the cutter is 2 s-3 s.
Preferably, the step 33 further includes determining the reverse rotation time of the tool according to the depth of the hole to be machined of the workpiece to be machined; namely, when the depth of the hole to be manufactured is more than or equal to 10mm, the reverse rotation time T takes a value of 8 s-10 s; and when the depth of the hole to be manufactured is less than 10mm, the reverse rotation time T takes 5 s-7 s.
Preferably, the safety plane is a plane position which is 100mm away from the surface of the workpiece to be processed for drilling.
The invention has the beneficial effects that:
according to the technical scheme, an extra device is not needed for cleaning the winding scraps, and the problem of cleaning the winding scraps of the hole making cutter is solved on the premise of not increasing the investment cost; the automatic chip cleaning is completed in the process of workpiece hole making, the flexibility is high, the automatic chip cleaning machine can be applied to a flexible automatic production line, the chip cleaning program is wound through insertion, the automatic chip cleaning and winding are realized, the automatic chip cleaning machine is suitable for various machine tools and cutters, manual intervention is not needed, the machining efficiency and the machining precision are improved, and the labor force is released.
Drawings
FIG. 1 is a flow chart of the overall implementation of the present solution;
fig. 2 is a schematic diagram of the chip cleaning flow in the technical scheme.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention.
Thus, the following detailed description of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
The embodiment discloses a chip cleaning method for a cutter in a workpiece hole making process, which is used for a numerical control machine tool on a flexible automatic production line as a preferred embodiment of the invention, and firstly, the working flow of the flexible automatic production line comprises the following steps:
A. setting a processing flow based on a numerical control program, downloading the numerical control program to a main control computer, and then allocating a task by a management and control system of a production line so as to transmit the numerical control program to a numerical control machine tool with the task;
B. preparing probes and tools (including a drill bit and a reamer) required by hole making in a tool library of the numerical control machine tool, clamping a part blank on a tray in a loading and unloading area of a flexible automatic production line, and then moving the tray to a workbench of the numerical control machine tool with a corresponding task based on the flexible automatic production line;
C. starting an operation program of a flexible automatic production line (the operation program comprises a control program of a mechanical arm, a recognition program of a cutter number and the like), moving a tray with a blank to a workbench of a designated numerical control machine tool on the production line, operating the mechanical arm (the mechanical arm is also a part of the composition structure of the flexible automatic production line), taking a prepared probe out of a cutter library, mounting the probe on a main shaft of the machine tool, measuring the current part blank and the surface of a blank clamp by using the probe, sending a scanning result to a numerical control system to analyze the planeness and the straightness of the part blank and the blank clamp, compensating a rotating coordinate system (different machine tool forms and different compensation modes; for XYZAB five-axis machine tools, firstly detecting the straightness by using the probe, finding the straightness by using a B axis, respectively measuring points in the directions by using the probe, calculating an error amount and compensating, for XYZAC, firstly, detecting the straightness by using a probe, aligning the straightness by using a rotating coordinate system, then respectively measuring points in XYZ directions by using the probe, calculating error amount and compensating the error amount to establish a processing coordinate system;
D. the manipulator is operated to take down the probe from the main shaft and place the probe into a tool magazine, and then the previously prepared tool is taken out from the tool magazine and is arranged on the main shaft of the numerical control machine;
E. and starting a numerical control program to perform hole machining on the part blank.
Based on the work flow of the flexible automatic production line, the cutter chip cleaning method in the workpiece hole making process comprises the following steps:
s1, performing a chip winding test based on a hole making program in the numerical control machine tool to obtain the chip winding condition of the cutter; wherein, the hole making program is a part of the numerical control program in the step A.
And S2, inserting a chip cleaning program into the hole making program of the numerical control machine tool according to the chip winding condition of the cutter to form a chip cleaning hole making program, and finally, the chip cleaning hole making program is also in the numerical control program in the step A. This step can be performed in the set process flow of step a.
And S3, operating a chip cleaning and hole making program (namely, the step E is started to carry out hole making on the part blank) to-be-machined workpiece, namely:
s31, operating a hole making program in the chip cleaning and hole making program, and enabling the cutter to rotate forwards in the hole making process;
s32, in the hole making process, when the cutter needs to be cleaned, the cutter returns to a safety plane after completing the current hole making task, wherein the safety plane is a plane where a height position can be returned after the cutter completes hole making every time, and preferably, the plane is at a height 100mm away from the hole making surface of the workpiece to be processed;
s33, operating a chip cleaning program in the chip cleaning and hole making program; based on a chip cleaning program, stopping the cutter for 2-5S on a safe plane (the stopping of the cutter is based on the stopping of a main shaft of a numerical control machine tool), and then reversely rotating the cutter for T time at the speed of S under the control action of the numerical control machine tool, wherein S is more than or equal to 3000r/min and less than or equal to 5000r/min, and T is more than or equal to 5S and less than or equal to 10S, so as to finish the chip cleaning treatment of the cutter. The chip cleaning program can be packaged into a numerical control function command, and the input parameters are the main shaft stalling maintenance time, the main shaft reversal maintenance time and the main shaft reversal rotating speed;
s34, after the chip cleaning treatment of the cutter is finished, the cutter stops rotating on the safety plane for 3-5S and then returns to the step S31;
and S35, circularly running the step S31-step S34 until the hole making work of the current workpiece is finished, and finishing the chip cleaning and hole making program.
Example 2
The embodiment discloses a chip cleaning method for a cutter in a workpiece hole making process, which is a preferred embodiment of the invention and comprises the following steps:
s1, for the parts with multiple holes, a chip and slag removing procedure needs to be inserted at a proper time, so that the machining efficiency and the machining quality can be guaranteed (chip winding can affect the machining quality). Different chip winding conditions (specifically, the chip winding speed) may exist for workpieces to be machined of different materials, holes to be machined of different sizes and cutters of different models, so that a chip winding test is performed based on a hole machining program in a numerical control machine tool to obtain the chip winding conditions of the cutters; specifically, the method comprises the following steps:
s11, selecting a cutter with a corresponding model according to the size of the hole made by the workpiece to be processed, and installing the cutter on a main shaft of a numerical control machine tool;
s12, starting a hole making program in the numerical control machine tool, and continuously making holes on the workpiece to be processed or the sample workpiece; the material of the sample workpiece and the size of the prepared hole are the same as the size of the workpiece to be processed;
and S13, observing the situation of the winding scraps on the cutter in the continuous hole making process, and manually analyzing the scrap cleaning requirement according to the situation of the winding scraps, namely determining the number n of continuous hole making before the scrap cleaning. Experiments are carried out according to various conditions of workpieces to be machined of different materials, holes to be machined of different sizes and cutters of different models, the value range of n is 2-4, and in order to ensure the quality of the holes, the preferable value of n is 2.
And S2, inserting a chip cleaning program into the hole making program of the numerical control machine tool according to the chip winding condition of the cutter, namely inserting the chip cleaning program into the hole making program according to the continuous hole making number n before the chip cleaning determined in the step S13 to form the chip cleaning and hole making program.
S3, operating the chip cleaning and hole making program to make holes on the workpiece to be processed, namely:
s31, operating a hole making program in the chip cleaning and hole making program;
s32, in the process of drilling, the numerical control system of the numerical control machine can automatically record the current accumulated continuous drilling number m, and when the tool needs to be cleared (i.e. m = n after n continuous drilling holes are drilled), the tool returns to the safety plane after completing the current drilling task;
s33, operating a chip cleaning program in the chip cleaning and hole making program; in order to protect a machine tool spindle, before the spindle cleans the winding scraps, the spindle is stopped and maintained for a period of time, so that the tool is stopped on a safe plane for 2-5 s based on a scrap cleaning program, and specifically, the time for stopping the tool on the safe plane is determined according to a hole making mode; namely, when the drilling mode is adopted, the tool stalling time is 4-5 s; when the reaming mode is adopted, the stopping time of the cutter is 2 s-3 s. The main shaft drives the cutter to rotate reversely to throw winding scraps away from the cutter, the principle of centrifugal force is mainly utilized, the rotating speed of the main shaft reverse rotation has great influence on the winding scraps throwing away cutter, the centrifugal force is larger when the rotating speed is larger, the winding scraps are easier to throw away from a reamer, but the length-diameter ratio of a hole-making cutter is generally larger, the cutter is easy to throw away at an overhigh rotating speed to influence subsequent processing, so the rotating speed of the main shaft is controlled within a certain range, the cutter is determined to rotate reversely for T time at the speed of S under the control action of a numerical control machine according to a certain scrap cleaning experiment, the T time is less than or equal to 3000r/min and less than or equal to 5000r/min, the T time is less than or equal to 5S and less than or equal to 10S, and the scrap cleaning treatment of the cutter is completed; the reverse rotation time of the cutter is determined according to the depth of a hole to be machined of a workpiece to be machined; namely, when the depth of the hole to be manufactured is more than or equal to 10mm, the reverse rotation time T takes a value of 8 s-10 s; when the depth of the hole to be drilled is less than 10mm, the reverse rotation time T takes a value of 5 s-7 s;
s34, after the chip cleaning treatment of the cutter is finished, the cutter stops rotating on the safety plane for 3-5S and then returns to the step S31;
and S35, circularly running the step S31-step S34 until the hole making work of the current workpiece is finished, and finishing the chip cleaning and hole making program.
Example 3
The present embodiment discloses a method for removing chips from a tool during a hole-making process of a workpiece, which is a preferred embodiment of the present invention, that is, in embodiment 2, the chip-removing implementation includes the following steps:
1) after the initial hole drilling is finished, the spindle retracts to a safe plane, the manipulator takes the drill bit from the spindle and places the drill bit into a tool magazine, then the reamer is taken out of the tool magazine and is installed on a machine tool spindle, the spindle rotating speed is set to be 225r/min, the feeding speed is set to be 22.5mm/min, the cutting linear speed is set to be 8.5m/min, the feeding amount per revolution is set to be 0.1mm, and n through holes with the depth of 5mm and phi 12DH8 are continuously reamed;
2) and after the continuous reaming is finished, the main shaft returns to the safety plane, and then scrap removal treatment is carried out.
Based on the above condition, carry out the clear experiment of considering to cut bits at different rotational speeds, it is specific:
continuously reaming 20 holes with the depth of 5mm and phi 12H8mm, reversing the main shaft for 5S according to S =5000r/min, observing the cleaning condition of the wrapping chips of the reamer, wherein the cleaning rate of the wrapping chips is 100%;
continuously reaming 20 holes with the depth of 5mm and phi 12H8mm, reversing the main shaft for 5S according to S =4000r/min, observing the reamer chip winding cleaning condition, wherein the chip winding cleaning rate is 100%;
20 holes with the depth of 5mm and phi 12H8mm are continuously reamed, the main shaft is reversed for 5S according to S =3000r/min, and then the reamer is observed to be cleaned by winding scraps, wherein the winding scraps cleaning rate is 80%.
Wherein, the winding scrap cleaning rate = (the weight of all winding scrap under the working condition-the weight of the remaining winding scrap on the cutter) ÷ is the weight of all winding scrap under the working condition multiplied by 100%.
Claims (6)
1. A chip cleaning method for a cutter in a workpiece hole making process is characterized by comprising the following steps:
s1, performing a chip winding test based on a hole making program in the numerical control machine tool to obtain the chip winding condition of the cutter;
s2, inserting a chip cleaning program into a hole making program of the numerical control machine tool according to the chip winding condition of the cutter to form a chip cleaning and hole making program;
s3, operating the chip cleaning and hole making program to make holes on the workpiece to be processed, namely:
s31, operating a hole making program in the chip cleaning and hole making program;
s32, in the hole making process, when the cutter needs to be cleaned, the cutter returns to the safety plane after completing the current hole making task;
s33, operating a chip cleaning program in the chip cleaning and hole making program; based on a chip cleaning program, stopping the cutter on a safe plane for 2-5S, and then reversely rotating the cutter at the speed of S for T time under the control action of a numerical control machine tool, wherein S is more than or equal to 3000r/min and less than or equal to 5000r/min, and T is more than or equal to 5S and less than or equal to 10S, so as to complete chip cleaning treatment of the cutter;
s34, after the chip cleaning treatment of the cutter is finished, the cutter stops rotating on the safety plane for 3-5S and then returns to the step S31;
and S35, circularly running the step S31-step S34 until the hole making work of the current workpiece is finished, and finishing the chip cleaning and hole making program.
2. A method of removing swarf from a tool during hole making in a workpiece according to claim 1, wherein said swarf wrapping test comprises the steps of:
s11, selecting a cutter with a corresponding model according to the size of the hole made by the workpiece to be processed, and installing the cutter on a main shaft of a numerical control machine tool;
s12, starting a hole making program in the numerical control machine tool, and continuously making holes on the workpiece to be processed or the sample workpiece; the material of the sample workpiece and the size of the prepared hole are the same as the size of the workpiece to be processed;
and S13, observing the situation of the winding scraps on the cutter in the continuous hole making process, and manually analyzing the scrap cleaning requirement according to the situation of the winding scraps, namely determining the number n of continuous hole making before the scrap cleaning.
3. A method of removing chips from a tool used in the process of drilling a hole in a workpiece as defined in claim 2, wherein: in step S2, a chip cleaning program is inserted into the hole making program according to the number n of continuous holes made before the chip cleaning determined in step S13, so that in step S3, the numerical control machine performs automatic chip cleaning of the tool once every n continuous holes made during the operation of the chip cleaning hole making program.
4. A method of removing chips from a tool used in the process of drilling a hole in a workpiece as defined in claim 1, wherein: in the step S33, determining the time for the tool to stop on the safety plane according to the hole making mode; namely, when the drilling mode is adopted, the tool stalling time is 4-5 s; when the reaming mode is adopted, the stopping time of the cutter is 2 s-3 s.
5. A method of removing chips from a tool used in the process of drilling a hole in a workpiece as defined in claim 1, wherein: in the step 33, determining the reverse rotation time of the tool according to the depth of the hole to be machined of the workpiece to be machined; namely, when the depth of the hole to be manufactured is more than or equal to 10mm, the reverse rotation time T takes a value of 8 s-10 s; and when the depth of the hole to be manufactured is less than 10mm, the reverse rotation time T takes 5 s-7 s.
6. A method of removing chips from a tool used in the process of drilling a hole in a workpiece as defined in claim 1, wherein: the safety plane is a plane position which is 100mm away from the surface of the workpiece to be processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210420093.8A CN114888618A (en) | 2022-04-21 | 2022-04-21 | Chip cleaning method for cutter in workpiece hole making process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210420093.8A CN114888618A (en) | 2022-04-21 | 2022-04-21 | Chip cleaning method for cutter in workpiece hole making process |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS591132A (en) * | 1982-06-23 | 1984-01-06 | Hitachi Ltd | Removing device for cuttings |
| JPH045343U (en) * | 1990-04-27 | 1992-01-17 | ||
| JPH0691414A (en) * | 1992-09-16 | 1994-04-05 | Enshu Ltd | Removing device for wound chip and removing method therefor |
| JP2006305704A (en) * | 2005-05-02 | 2006-11-09 | Mitsubishi Electric Corp | Chip removing method |
| CN102672513A (en) * | 2012-05-16 | 2012-09-19 | 神龙汽车有限公司 | Scrap removing method of cutter of machine tool |
| CN104950820A (en) * | 2014-03-27 | 2015-09-30 | 兄弟工业株式会社 | Numerical control device and control method |
| CN109352416A (en) * | 2018-12-05 | 2019-02-19 | 上海交通大学 | A kind of machine tool chief axis folder bits and/or cutter twine the alarm method and device of bits |
| WO2021141016A1 (en) * | 2020-01-07 | 2021-07-15 | ファナック株式会社 | Numerical control device, chip removal system, chip removal method |
-
2022
- 2022-04-21 CN CN202210420093.8A patent/CN114888618A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS591132A (en) * | 1982-06-23 | 1984-01-06 | Hitachi Ltd | Removing device for cuttings |
| JPH045343U (en) * | 1990-04-27 | 1992-01-17 | ||
| JPH0691414A (en) * | 1992-09-16 | 1994-04-05 | Enshu Ltd | Removing device for wound chip and removing method therefor |
| JP2006305704A (en) * | 2005-05-02 | 2006-11-09 | Mitsubishi Electric Corp | Chip removing method |
| CN102672513A (en) * | 2012-05-16 | 2012-09-19 | 神龙汽车有限公司 | Scrap removing method of cutter of machine tool |
| CN104950820A (en) * | 2014-03-27 | 2015-09-30 | 兄弟工业株式会社 | Numerical control device and control method |
| CN109352416A (en) * | 2018-12-05 | 2019-02-19 | 上海交通大学 | A kind of machine tool chief axis folder bits and/or cutter twine the alarm method and device of bits |
| WO2021141016A1 (en) * | 2020-01-07 | 2021-07-15 | ファナック株式会社 | Numerical control device, chip removal system, chip removal method |
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