KR101521387B1 - Method For Pre-heating Of Main Shaft In Machining Tools - Google Patents
Method For Pre-heating Of Main Shaft In Machining Tools Download PDFInfo
- Publication number
- KR101521387B1 KR101521387B1 KR1020140051819A KR20140051819A KR101521387B1 KR 101521387 B1 KR101521387 B1 KR 101521387B1 KR 1020140051819 A KR1020140051819 A KR 1020140051819A KR 20140051819 A KR20140051819 A KR 20140051819A KR 101521387 B1 KR101521387 B1 KR 101521387B1
- Authority
- KR
- South Korea
- Prior art keywords
- motor
- temperature
- preheating
- time
- current
- Prior art date
Links
Images
Classifications
-
- 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
- B23Q11/14—Methods or arrangements for maintaining a constant temperature in parts of machine tools
-
- 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
- B23Q11/14—Methods or arrangements for maintaining a constant temperature in parts of machine tools
- B23Q11/143—Methods or arrangements for maintaining a constant temperature in parts of machine tools comprising heating means
-
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Control Of Machine Tools (AREA)
Abstract
One embodiment of the present invention provides a preheating method of a machine tool main spindle capable of judging whether or not an accurate preheating has been completed by advancing and receiving a motor temperature instead of a time after stoppage of a main spindle.
To this end, a method for preheating a machine tool spindle according to an embodiment of the present invention includes a step (A) of detecting a current temperature of a motor connected to a main shaft, a step (B) of detecting a maximum temperature of the motor, (C) calculating a preheating time (Time) by substituting the temperature difference (DELTA T) of the current motor into the following equation and inputting the calculated preheating time to the preheating device A method of preheating a machine spindle is disclosed.
[Mathematical Expression]
Here, a, b, c to z means the coefficient of the machine tool.
Description
One embodiment of the invention relates to a method of preheating a machine tool spindle.
Generally, machining using a machine tool is performed by various cutting tools such as a grinding, a side machining, a hole machining, a screw machining, etc. In the NC (numerical control) machine tool for this purpose, a plurality of tool magazines And the main spindle is machined by exchanging the tool with the necessary machining using this tool. This allows the machine tool to be operated faster and faster with multiple tool holders.
In general, the machine tool preheats the main spindle by a predetermined time to increase the efficiency of the work. However, in the conventional preheating method, since the preheating is carried out by dividing the steps based on the stopping time of the main shaft and the user must directly input the preheating condition, the preheating required for the operation due to the wrong input .
In addition, the conventional preheating method is not based on the temperature of the motor of the machine tool but is based on the preheating time determined in each step, thereby leading to an incorrect step depending on the size and environment of the main shaft.
One embodiment of the present invention provides a preheating method of a machine tool main spindle capable of judging whether or not an accurate preheating has been completed by advancing and receiving a motor temperature instead of a time after stoppage of a main spindle.
A method for preheating a machine tool spindle according to an embodiment of the present invention includes the steps of: detecting a current temperature of a motor connected to a main shaft; detecting a maximum temperature of the motor; A step (C) of calculating a preheating time (Time) by substituting the temperature difference (DELTA T) of the motor into the following equation and a step (D) of inputting the calculated preheating time into the preheating device.
[Mathematical Expression]
Here, a, b, c to z means the coefficient of the machine tool.
The step (B) may include a step (B-1) of determining whether the main axis of the machine tool is the first machining.
The step (B) may further include the step (B-2) of setting the reference maximum temperature of the motor to the maximum temperature of the motor when the main shaft of the machine tool is judged to be the first machining in the step (B-1) .
Determining whether the maximum temperature of the motor is equal to the temperature of the current motor after the step (D); if the maximum temperature of the motor is not equal to the temperature of the current motor in the step (E) (F) determining whether the time limit is equal to the current preheating time, comparing whether the difference between the maximum temperature of the motor and the current temperature of the motor is less than a reference error, and comparing whether the current preheating time is equal to the reference temperature holding time G).
In the step (G), if the difference between the maximum temperature of the motor and the current temperature of the motor is greater than the reference error, or if the current preheating time is not equal to the reference temperature holding time, the operation may return to step (C).
The preheating method of the machine tool main spindle according to an embodiment of the present invention can determine whether the precise preheating has been completed by feeding back the motor temperature instead of the time after stopping the main spindle.
1 is a flowchart of a method of preheating a machine tool spindle according to an embodiment of the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The embodiments of the present invention are described in order to more fully explain the present invention to those skilled in the art, and the following embodiments may be modified into various other forms, The present invention is not limited to the embodiment. Rather, these embodiments are provided so that this disclosure will be more faithful and complete, and will fully convey the scope of the invention to those skilled in the art.
In the following drawings, thickness and size of each layer are exaggerated for convenience and clarity of description, and the same reference numerals denote the same elements in the drawings. As used herein, the term "and / or" includes any and all combinations of one or more of the listed items.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a," "an," and "the" include singular forms unless the context clearly dictates otherwise. Also, " comprise "and / or" comprising "when used herein should be interpreted as specifying the presence of stated shapes, numbers, steps, operations, elements, elements, and / And does not preclude the presence or addition of one or more other features, integers, operations, elements, elements, and / or groups.
Although the terms first, second, etc. are used herein to describe various elements, components, regions, layers and / or portions, these members, components, regions, layers and / It is obvious that no. These terms are only used to distinguish one member, component, region, layer or section from another region, layer or section. Thus, a first member, component, region, layer or section described below may refer to a second member, component, region, layer or section without departing from the teachings of the present invention.
1 is a flowchart of a method of preheating a machine tool spindle according to an embodiment of the present invention.
As shown in FIG. 1, a method for preheating a machine tool spindle according to an embodiment of the present invention includes a step S10 of checking a motor temperature, a step S20 of detecting a maximum temperature of the motor, (S30) and correcting the preheating time (S40).
The step S10 of checking the motor temperature measures the temperature of a motor (not shown) connected to the main shaft (not shown) of a machine tool (not shown) through a temperature sensor (not shown) in real time.
Here, if the temperature sensor can be formed of a glass temperature sensor, a resistance temperature sensor, a thermistor or a thermocouple, the type of the temperature sensor is not limited in the present invention.
The step S20 of detecting the maximum temperature of the motor may include determining whether the main axis of the machine tool is the first machining step S21 and setting the latest maximum temperature of the motor to the maximum temperature of the motor S22 .
That is, the step S20 of detecting the maximum temperature of the motor determines whether the main axis of the machine tool is the first machining operation (S21). If it is determined that the main machining operation is not the first machining operation, The maximum temperature is judged.
If it is determined that the main shaft of the machine tool is the first machining operation (S21), it is determined that the main machining operation is the first machining operation. Then, the reference maximum temperature of the motor is determined as the maximum temperature of the recently measured motor, .
Thereafter, in the step of calculating the preheating time (S30), the maximum temperature of the motor measured in the step (S20) of detecting the maximum temperature of the motor and the temperature of the motor measured in the step (S10) The preheating time (Time) is calculated using the temperature difference (DELTA T).
More specifically, the preheating time (Time) is calculated by substituting the above temperature difference (DELTA T) into the following equation.
[Mathematical Expression]
Here, a, b, c to z mean the coefficients of the machine tool, and have different coefficients for each type of machine tool.
The above equation selects an order of 95% or more of the explanatory power.
An example of a typical machine tool is described as follows. In this case, a fifth-order equation was used.
≪ Molding machine: a = 0.006, b = -0.411, c = 10.910, d = -138.000, e = 863.700,
<Tapper: a = 86.77, b = -560, c = 1515, d = -2692, e = 4691, f = 10000>
Here, for the sake of convenience of description, the above-described apparatuses are examples only, and the present invention is not limited to the above-described apparatuses.
That is, as described above, an embodiment of the present invention can perform a reliable preheating operation by detecting the temperature of the motor in real time and calculating the preheating time through the detection.
In addition, the embodiment of the present invention further includes a step of correcting the preheating time (S40) to check whether there is no error in the calculated preheating time.
More specifically, the step of correcting the preheating time S40 may include determining whether the maximum temperature of the motor is the same as the temperature of the current motor S41, determining whether the preheating time limit is equal to the current preheating time S42 And a step (S43) of comparing the difference between the maximum temperature of the motor and the temperature difference of the current motor less than the reference error, and comparing whether the current preheating time is equal to the reference temperature holding time.
That is, in step S41 of determining whether the maximum temperature of the motor is equal to the temperature of the current motor, the temperature of the main shaft and the motor preheated during the preheating time (Time) is measured in real time with the maximum temperature of the target motor It is to compare whether the current motor temperature is the same.
If it is determined in step S41 that the maximum temperature of the motor and the current temperature of the motor are the same, the preheating operation is completed when it is determined that the maximum temperature of the motor is equal to the temperature of the current motor. However, if the current temperature of the motor does not reach the maximum temperature of the target motor even if the preheating is performed during the preheating time (Time), the preheating time (Time) is corrected.
As described above, if the temperature of the motor does not reach the maximum temperature of the target motor even if the preheating is performed for the preheating time (Time), the preheating time is compared with the predetermined preheating time, (Time) is equal to the preset preheating time limit, it is judged that the preheating has been performed sufficiently and the preheating operation is completed. However, if the preheating time (Time) and the predetermined preheating time limit are not the same, it is judged that further preheating is necessary.
To this end, it is further determined whether the difference between the maximum temperature of the motor and the current temperature of the motor is smaller than the reference error, and the step S43 is performed to compare whether the current preheating time is equal to the reference temperature holding time.
That is, in step S43, the difference between the maximum temperature of the target motor and the temperature difference of the current motor that has performed the preheating is smaller than the preset reference error range, and the current preheating time is compared with the preset reference temperature holding time If it is judged to be the same, it is judged that the preheating is sufficiently performed as described above, and the preheating operation is completed.
However, if the target temperature difference between the maximum temperature of the motor and the current motor is larger than the reference error range or the current preheating time (Time) is not equal to the preset reference temperature holding time, , And returns to the step S30 of calculating the preheating time to perform an additional preheating operation.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. It is.
S10: Checking the motor temperature
S20: Step of detecting the maximum temperature of the motor
S30: Step of calculating the preheating time
S40: Step of correcting the preheating time
Claims (5)
(B) detecting a maximum temperature of the motor;
(C) calculating a preheating time (Time) by substituting the maximum temperature of the motor and the temperature difference (DELTA T) of the current motor into the following equation; And
And (D) inputting the calculated preheating time to the preheating device.
[Mathematical Expression]
Here, a, b, c to z means the coefficient of the machine tool.
The step (B)
And a step (B-1) of determining whether the main axis of the machine tool is the first machining operation.
In the step (B)
If it is determined in step (B-1) that the major axis of the machine tool is the first machining,
Further comprising a step (B-2) of setting a reference maximum temperature of the motor to a maximum temperature of the motor.
After the step (D)
(E) determining whether the maximum temperature of the motor is the same as the temperature of the current motor;
(F) determining whether the preheating time limit and the current preheating time are the same if the maximum temperature of the motor and the current temperature of the motor are not equal in step (E); And
Further comprising a step (G) of comparing whether the difference between the maximum temperature of the motor and the temperature difference of the current motor is smaller than a reference error, and comparing whether the current preheating time is equal to the reference temperature holding time .
In the step (G)
The difference between the maximum temperature of the motor and the current motor temperature is greater than the reference error,
Or if the current preheating time is not the same as the reference temperature holding time, the process returns to step (C).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140051819A KR101521387B1 (en) | 2014-04-29 | 2014-04-29 | Method For Pre-heating Of Main Shaft In Machining Tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140051819A KR101521387B1 (en) | 2014-04-29 | 2014-04-29 | Method For Pre-heating Of Main Shaft In Machining Tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR101521387B1 true KR101521387B1 (en) | 2015-05-18 |
Family
ID=53395011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020140051819A KR101521387B1 (en) | 2014-04-29 | 2014-04-29 | Method For Pre-heating Of Main Shaft In Machining Tools |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101521387B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490883A (en) * | 2018-03-19 | 2018-09-04 | 成都飞机工业（集团）有限责任公司 | A kind of numerically-controlled machine tool pre-heating mean |
| KR20230150504A (en) | 2022-04-22 | 2023-10-31 | 주식회사 디엔솔루션즈 | Machine tool warm-up control apparatus and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0385193U (en) * | 1989-12-21 | 1991-08-28 | ||
| JPH06277979A (en) * | 1993-03-30 | 1994-10-04 | Enshu Ltd | Spindle warming-up device for machine tool |
| JP2000271836A (en) * | 1999-03-24 | 2000-10-03 | Makino Milling Mach Co Ltd | Control method and device for machine tool under numerical control |
| JP2007125648A (en) * | 2005-11-04 | 2007-05-24 | Mori Seiki Co Ltd | Thermal displacement correcting device |
-
2014
- 2014-04-29 KR KR1020140051819A patent/KR101521387B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0385193U (en) * | 1989-12-21 | 1991-08-28 | ||
| JPH06277979A (en) * | 1993-03-30 | 1994-10-04 | Enshu Ltd | Spindle warming-up device for machine tool |
| JP2000271836A (en) * | 1999-03-24 | 2000-10-03 | Makino Milling Mach Co Ltd | Control method and device for machine tool under numerical control |
| JP2007125648A (en) * | 2005-11-04 | 2007-05-24 | Mori Seiki Co Ltd | Thermal displacement correcting device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490883A (en) * | 2018-03-19 | 2018-09-04 | 成都飞机工业（集团）有限责任公司 | A kind of numerically-controlled machine tool pre-heating mean |
| CN108490883B (en) * | 2018-03-19 | 2020-12-01 | 成都飞机工业（集团）有限责任公司 | Preheating method of numerical control machine tool |
| KR20230150504A (en) | 2022-04-22 | 2023-10-31 | 주식회사 디엔솔루션즈 | Machine tool warm-up control apparatus and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10105808B2 (en) | Processing system having function for maintaining processing accuracy | |
| JP6694643B2 (en) | Workpiece processing method | |
| EP2857831B1 (en) | Built-in type vision based inspection tool for autonomous setting of initial origin | |
| US20180307200A1 (en) | Method for compensating milling cutter deflection | |
| WO2014076996A1 (en) | Interface system of industrial machine | |
| US10184774B2 (en) | Correcting apparatus and correcting method | |
| KR101521387B1 (en) | Method For Pre-heating Of Main Shaft In Machining Tools | |
| US20160274576A1 (en) | Numerical control device inspecting screw holes | |
| KR101314498B1 (en) | Tool abrasion automatic correction device for machine tool and method thereof | |
| KR101960171B1 (en) | Method for correcting of pivot of 5 axis equipment | |
| EP2646187A1 (en) | Centering method for optical elements | |
| US20190236472A1 (en) | Manufacturing assistance apparatus | |
| JP2017193043A (en) | Position measurement method and position measurement system for object in machine tool | |
| EP3072620B1 (en) | Wire electric discharge machine including unit for adjusting position of workpiece before calibrating | |
| CN108088363B (en) | Method and device for automated machining and testing of gear components | |
| KR20180024093A (en) | Tool breakage and wear monitoring method | |
| US11340139B2 (en) | Method and apparatus for wear analysis on a machine tool | |
| CN105511850A (en) | Screwing and/or riveting system and method for monitoring screwing and/or riveting system | |
| US10073437B2 (en) | Method and apparatus for compensating thermal displacement of machine tool | |
| Vashist et al. | Productivity improvement by fixture modification | |
| KR102107857B1 (en) | Apparatus and method for detecting a workpiece | |
| CN111660142A (en) | Machine tool with automatic correction function for tool replacement | |
| KR102075801B1 (en) | Device for detecting cutting position of material and method therefor | |
| KR20190102371A (en) | Method for compensating thickness of processing material | |
| JP2018079525A5 (en) | Machine tool and method of operating machine tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20180412 Year of fee payment: 4 |
|
| FPAY | Annual fee payment |
Payment date: 20190415 Year of fee payment: 5 |