CN108972150B - Titanium alloy milling non-contact type cutter temperature measuring method and device - Google Patents
Titanium alloy milling non-contact type cutter temperature measuring method and device Download PDFInfo
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- CN108972150B CN108972150B CN201810894576.5A CN201810894576A CN108972150B CN 108972150 B CN108972150 B CN 108972150B CN 201810894576 A CN201810894576 A CN 201810894576A CN 108972150 B CN108972150 B CN 108972150B
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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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
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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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
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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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
- B23Q17/0985—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining by measuring temperature
Abstract
The invention discloses a titanium alloy milling non-contact type measuring method and device for measuring the temperature of a cutter, which comprises an infrared point thermometer and a contact type tool setting gauge, wherein the infrared point thermometer and the contact type tool setting gauge are respectively arranged on an adjusting box, the adjusting box is arranged on a main spindle box of a milling machine, the infrared point thermometer is connected with a computer through a lead, a micro groove is arranged in the feeding direction of a region to be processed of a workpiece, the infrared point thermometer focuses a light beam onto a milling cutter through the micro groove, and a photoelectric signal is generated and is acquired and input into the computer through the infrared point thermometer for real-time display and recording. The invention leads the light beam emitted by the infrared point thermometer to pass through the micro-groove prefabricated by the workpiece and focus on the region to be measured of the cutter, thereby realizing the high-precision non-contact on-line measurement of the instantaneous cutting temperature of the cutter in the milling process of titanium alloy, effectively avoiding the situation of larger measurement temperature deviation caused by the heat dissipation of the cutter, and ensuring the authenticity of the instantaneous cutting temperature of the cutter to the maximum extent.
Description
The technical field is as follows:
the invention relates to temperature measurement of a titanium alloy milling cutter, in particular to a method and a device for measuring the temperature of the titanium alloy milling cutter in a non-contact mode.
Background art:
the titanium alloy has the characteristics of high strength, good corrosion resistance, high heat resistance and the like, and becomes an indispensable structural material in the modern aerospace industry. However, the temperature of the workpiece and the cutter in the cutting area is high due to the low thermal conductivity of the cutter, and the high temperature of the cutter can greatly influence the processing process and the result, even influence the service life of the cutter, so the cutter temperature has important significance in the milling processing of titanium alloy. The commonly used methods for measuring the temperature of the cutter in the milling process at the present stage are as follows: contact measurement and non-contact measurement.
The contact measurement method mainly comprises a natural thermocouple method, an artificial thermocouple method and a semi-artificial thermocouple method. The method of the natural thermocouple method is simple and reliable, and the method can only be used for measuring the average temperature of the cutting part of the milling cutter, but cannot be used for measuring the temperature of a specific point. The artificial thermocouple method can measure the temperature distribution field and the position of the highest temperature point, but the application of the artificial thermocouple is greatly limited because the difficulty of embedding the artificial thermocouple into the superhard cutter material is high and calibration is needed for different materials. The semi-artificial thermocouple method is a combination of a natural thermocouple method and an artificial thermocouple method, but the measurement precision of the semi-artificial thermocouple method cannot be continuously stable in the milling process, so that the precision is reduced. The non-contact measurement method is mainly realized by a thermal infrared imager or an infrared point thermometer, wherein the thermal infrared imager can display the temperature of the area to be measured through color comparison, but cannot measure the internal temperature, and the precision is low due to the fact that different materials need to be calibrated. The traditional infrared point thermometer measuring method is generally used for measuring the temperature of the exposed part of the milling cutter, but the measuring precision is low due to the fact that the cutting temperature has a strong instant effect. Therefore, the improvement of the measuring method has important significance for improving the temperature measuring precision of the cutter in the milling process of the titanium alloy.
The invention content is as follows:
the technical problem to be solved by the invention is as follows: the method and the device for measuring the temperature of the titanium alloy milling non-contact type measuring tool overcome the defects of the prior art, are reasonable in design, reduce the measuring cost and improve the temperature measuring precision and accuracy.
The technical scheme of the invention is as follows:
a titanium alloy milling non-contact type cutter temperature measuring method comprises the following steps:
a. fixing a workpiece on a milling machine workbench through a fixture, forming a micro groove in the feeding direction of a region to be processed, fixing an adjusting box on a spindle box, arranging an infrared point thermometer and a contact type tool setting gauge on the adjusting box, and connecting the infrared point thermometer with a computer through a lead;
b. adjusting the distance between the infrared point thermometer and the milling cutter, positioning the tool setting gauge by contact, enabling the light beam focusing point of the infrared point thermometer and the surface of a workpiece to be in the same horizontal plane, and focusing the light beam collected by the infrared point thermometer on a region to be measured of the tool through a micro-groove;
c. the milling cutter is positioned at the edge of the micro-groove and mills the titanium alloy workpiece along the direction parallel to the micro-groove, the infrared point thermometer focuses the emitted light beam on the milling cutter through the micro-groove, generates a photoelectric signal, collects and inputs the photoelectric signal into a computer through the infrared point thermometer, and displays and records the photoelectric signal in real time, so that the instantaneous temperature of the milling cutter in the milling process is obtained;
d. the temperature of different positions of the milling cutter can be measured by adjusting the vertical height of the infrared point thermometer.
The adjusting box is respectively provided with a transverse hole, a longitudinal hole and a vertical hole, the transverse hole, the longitudinal hole and the vertical hole are respectively provided with a transverse connecting rod, a longitudinal connecting rod and a vertical connecting rod, and the hole walls penetrating through the transverse hole, the longitudinal hole and the vertical hole are respectively provided with a locking bolt.
One end of the transverse connecting rod is provided with a strong magnetic suction base, the strong magnetic suction base is fixedly adsorbed on the spindle box, the lower end of the vertical connecting rod is provided with an infrared point thermometer, the outer end of the longitudinal connecting rod is provided with a downward bending section, and the lower end of the bending section is provided with a contact type tool setting gauge.
Set up a tangent plane respectively along the axial of horizontal connecting rod, longitudinal tie rod and perpendicular connecting rod, be convenient for the locking bolt location to set up the scale mark on the tangent plane. And polishing the surface of the workpiece to be attached to the upper surface, so as to improve the flatness of the upper surface, and transmitting signals received by the computer to a monitor or a personal information terminal through a wireless network or a wired network.
The utility model provides a titanium alloy mills non-contact measurement cutter temperature measuring device, includes infrared point thermometer and contact tool setting appearance, infrared point thermometer and contact tool setting appearance set up respectively on adjusting the box, adjust the box setting on the headstock of milling machine, infrared point thermometer passes through the lead wire and is connected with the computer, sets up miniature groove at the regional direction of feed of treating the processing of work piece, infrared point thermometer passes through miniature groove with the transmission beam focus on milling cutter, produces photoelectric signal and passes through infrared point thermometer gathers the input the computer carries out real-time display and record to obtain the instantaneous temperature of milling cutter in the milling process.
The adjusting box is provided with a transverse hole, a longitudinal hole and a vertical hole respectively, the transverse hole, the longitudinal hole and the vertical hole are provided with a transverse connecting rod, a longitudinal connecting rod and a vertical connecting rod respectively, and the hole wall penetrating through the transverse hole, the longitudinal hole and the vertical hole is provided with a locking bolt respectively.
One end of the transverse connecting rod is provided with a strong magnetic suction base, the strong magnetic suction base is fixedly adsorbed on the spindle box, the lower end of the vertical connecting rod is provided with an infrared point thermometer, the outer end of the longitudinal connecting rod is provided with a downward bending section, and the lower end of the bending section is provided with a contact type tool setting gauge.
And a tangent plane is respectively arranged along the axial direction of the transverse connecting rod, the longitudinal connecting rod and the vertical connecting rod, so that the locking bolt is convenient to position, and scale marks are arranged on the tangent plane. Polishing and grinding the surface of the workpiece to improve the flatness of the upper surface, and transmitting signals received by the computer to a monitor or a personal information terminal through a wireless network or a wired network; the infrared thermometer is a high-precision thermometer; the width of the micro-groove is less than 1mm, so that only measuring light beams can pass through the micro-groove.
The invention has the beneficial effects that:
1. when the milling cutter mills a workpiece, the milling cutter is positioned at the edge of the micro-groove, the infrared point thermometer focuses a light beam emitted by the micro-groove on the milling cutter, generates a photoelectric signal, collects and inputs the photoelectric signal into a computer through the infrared point thermometer, and displays and records the photoelectric signal in real time, so that the instantaneous temperature of the milling cutter in the milling process is obtained, and the accuracy is high.
2. According to the invention, by adjusting the relative position, the infrared point thermometer light beam focus point is adjusted to the area to be measured of the milling cutter, and the infrared point thermometer is connected to the central computer, so that the device for measuring the temperature of the cutter in a non-contact manner in the milling titanium alloy processing process is formed, and the device is convenient and rapid.
3. The milling direction of the milling cutter is consistent with the slotting direction of the micro-groove, when the milling cutter mills, a light beam emitted by the infrared point thermometer is focused on a part to be measured of the cutter through the micro-groove, the temperature of the cutting part is recorded in real time, and the temperature of the milling cutter in the high-precision milling process is obtained.
4. The invention improves the precision and accuracy of temperature measurement, reduces the measurement cost, generates continuous temperature measurement effect in the process of milling the workpiece, has important significance for the whole titanium alloy milling processing research and application, is easy to popularize and implement, and has good economic benefit.
Description of the drawings:
FIG. 1 is a schematic structural diagram of a titanium alloy milling non-contact type measuring device for measuring the temperature of a cutter;
FIG. 2 is a temperature measurement schematic diagram of a titanium alloy milling non-contact type cutter temperature measurement device;
FIG. 3 is a schematic structural diagram of a fixing rod of the titanium alloy milling non-contact type measuring device for measuring the temperature of the cutter;
FIG. 4 is a left side view of the connecting rod of FIG. 3;
fig. 5 is a top view of the conditioning cartridge of fig. 1.
The specific implementation mode is as follows:
example (b): referring to fig. 1-5, therein, 1-headstock; 2-a knife handle; 3-milling cutter; 4-a workpiece; 5-area to be measured; 6-longitudinal connecting rods; 7-contact tool setting gauge; 8-a region to be processed; 9-measuring the light beam; 10-micro-groove; 11-infrared point thermometer; 12-a computer; 13-vertical connecting rods; 14-a locking bolt; 15-locking bolts; 16-a locking bolt; 17-an adjustment box; 18-a transverse tie bar; 19-strong magnetic attraction base.
The technical scheme is that the method and the device for measuring the temperature of the titanium alloy milling non-contact type measuring tool comprises the following steps:
a. fixing a workpiece 4 on a milling machine workbench through a fixture, forming a micro groove 10 in the feeding direction of a region to be processed 8, fixing an adjusting box 17 on a spindle box 1, arranging an infrared point thermometer 11 and a contact type tool setting gauge 7 on the adjusting box 17, and connecting the infrared point thermometer 11 with a computer 12 through a lead;
b. adjusting the distance between the infrared point thermometer 11 and the milling cutter 3, positioning the cutter gauge 7 in a contact manner, enabling the light beam focusing point of the infrared point thermometer 11 and the surface of the workpiece 4 to be in the same horizontal plane, and focusing the light beam collected by the infrared point thermometer 11 on the area 5 to be measured of the cutter through the micro-groove 10;
c. the milling cutter 3 is positioned at the edge of the micro-groove 10 and mills the titanium alloy workpiece 4 along the direction parallel to the micro-groove 10, the infrared point thermometer 11 focuses the emitted light beam on the milling cutter 3 through the micro-groove 10, generates a photoelectric signal, collects the photoelectric signal through the infrared point thermometer 11 and inputs the photoelectric signal into the computer 12, and displays and records the photoelectric signal in real time, so that the instantaneous temperature of the milling cutter in the milling process is obtained;
d. by adjusting the vertical height of the infrared spot thermometer 11, the temperature of the milling cutter 3 can be measured at different positions.
The adjusting box 17 is provided with a transverse hole, a longitudinal hole and a vertical hole, the transverse connecting rod 18, the longitudinal connecting rod 6 and the vertical connecting rod 13 are respectively arranged in the transverse hole, the longitudinal hole and the vertical hole, and the hole wall penetrating through the transverse hole, the longitudinal hole and the vertical hole is respectively provided with a locking bolt 15, a locking bolt 14 and a locking bolt 16.
One end of the transverse connecting rod 18 is provided with a strong magnetic suction base 19, the strong magnetic suction base 19 is fixedly adsorbed on the spindle box 1, the lower end of the vertical connecting rod 13 is provided with an infrared point thermometer 11, the outer end of the longitudinal connecting rod 6 is provided with a downward bending section, and the lower end of the bending section is provided with a contact type tool setting gauge 7. A tangent plane is respectively arranged along the axial direction of the transverse connecting rod 17, the longitudinal connecting rod 6 and the vertical connecting rod 13, so that the locking bolt is convenient to position, and scale marks are arranged on the tangent plane.
The upper surface of the workpiece 4 is polished to improve the flatness of the upper surface, and the signal received by the computer 12 is transmitted to a monitor or a personal information terminal through a wireless network or a wired network. The infrared point thermometer 11 is a high-precision point thermometer; the width of the micro-groove 10 is less than 1mm, preferably only the measuring beam is passed through.
All tie bars should be of moderate length to maintain sufficient rigidity and the vertical tie bar 13 length L1 is 1.2-1.8 times the mill length. The length of the transverse connecting rod 18 is 1-1.5 times of the length of the workpiece.
Milling a workpiece according to processing technological parameters and processing requirements, fixing the workpiece 4 on a milling machine workbench through a clamp, polishing the upper surface fitting surface of the workpiece to improve the flatness of the upper surface, and adjusting the distance between an infrared point thermometer 11 and a milling cutter 3 by adjusting a transverse connecting rod 18; the focusing point of the light beam of the infrared point thermometer 11 and the surface of the workpiece 4 are positioned on the same horizontal plane through the contact tool setting gauge 7; the vertical height of the infrared point thermometer 9 is adjusted by adjusting the vertical connecting rod 13, so that the temperature measurement of different positions of the milling cutter 3 is realized; the infrared point thermometer 9 is connected with a computer 10 through a lead.
When milling, the milling cutter 3 is positioned at the edge of the micro-groove, the infrared point thermometer 11 focuses the emitted light beam on the milling cutter 3 through the micro-groove 10, generates photoelectric signals, collects the photoelectric signals through the infrared point thermometer 11, inputs the photoelectric signals into the computer 12, and displays and records the photoelectric signals in real time. So that the instantaneous temperature of the milling cutter 3 during milling is obtained.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiment according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. A titanium alloy milling non-contact type cutter temperature measuring method comprises the following steps:
a. fixing a workpiece on a milling machine workbench through a fixture, forming a micro groove in the feeding direction of a region to be processed, fixing an adjusting box on a spindle box, arranging an infrared point thermometer and a contact type tool setting gauge on the adjusting box, and connecting the infrared point thermometer with a computer through a lead;
b. adjusting the distance between the infrared point thermometer and the milling cutter, positioning the tool setting gauge by contact, enabling the light beam focusing point of the infrared point thermometer and the surface of a workpiece to be in the same horizontal plane, and focusing the light beam collected by the infrared point thermometer on a region to be measured of the tool through a micro-groove;
c. the milling cutter is positioned at the edge of the micro-groove and mills the titanium alloy workpiece along the direction parallel to the micro-groove, the infrared point thermometer focuses the emitted light beam on the milling cutter through the micro-groove, generates a photoelectric signal, collects and inputs the photoelectric signal into a computer through the infrared point thermometer, and displays and records the photoelectric signal in real time, so that the instantaneous temperature of the milling cutter in the milling process is obtained;
d. the temperature of different positions of the milling cutter can be measured by adjusting the vertical height of the infrared point thermometer.
2. The titanium alloy milling non-contact measurement tool temperature measurement method according to claim 1, characterized in that: the adjusting box is respectively provided with a transverse hole, a longitudinal hole and a vertical hole, the transverse hole, the longitudinal hole and the vertical hole are respectively provided with a transverse connecting rod, a longitudinal connecting rod and a vertical connecting rod, and the hole walls penetrating through the transverse hole, the longitudinal hole and the vertical hole are respectively provided with a locking bolt.
3. The titanium alloy milling non-contact measurement tool temperature measurement method according to claim 2, characterized in that: one end of the transverse connecting rod is provided with a strong magnetic suction base, the strong magnetic suction base is fixedly adsorbed on the spindle box, the lower end of the vertical connecting rod is provided with an infrared point thermometer, the outer end of the longitudinal connecting rod is provided with a downward bending section, and the lower end of the bending section is provided with a contact type tool setting gauge.
4. The titanium alloy milling non-contact measurement tool temperature measurement method according to claim 3, characterized in that: set up a tangent plane respectively along the axial of horizontal connecting rod, longitudinal tie rod and perpendicular connecting rod, be convenient for the locking bolt location to set up the scale mark on the tangent plane.
5. The titanium alloy milling non-contact measurement tool temperature measurement method according to claim 1, characterized in that: and polishing the surface of the workpiece to be attached to the upper surface, so as to improve the flatness of the upper surface, and transmitting signals received by the computer to a monitor or a personal information terminal through a wireless network or a wired network.
6. The utility model provides a titanium alloy mills non-contact measurement cutter temperature measuring device, includes infrared point thermometer and contact tool setting appearance, characterized by: the infrared point thermometer and the contact type tool setting gauge are respectively arranged on an adjusting box, the adjusting box is arranged on a main shaft box of a milling machine, the infrared point thermometer is connected with a computer through a lead, a micro groove is formed in the feeding direction of a region to be machined of a workpiece, the infrared point thermometer focuses an emitted light beam on the milling cutter through the micro groove, a photoelectric signal is generated and is collected and input into the computer through the infrared point thermometer, and real-time display and recording are carried out, so that the instantaneous temperature of the milling cutter in the milling process is obtained.
7. The titanium alloy milling non-contact measurement tool temperature measurement device of claim 6, wherein: the adjusting box is provided with a transverse hole, a longitudinal hole and a vertical hole respectively, the transverse hole, the longitudinal hole and the vertical hole are provided with a transverse connecting rod, a longitudinal connecting rod and a vertical connecting rod respectively, and the hole wall penetrating through the transverse hole, the longitudinal hole and the vertical hole is provided with a locking bolt respectively.
8. The titanium alloy milling non-contact measurement tool temperature measurement device of claim 7, wherein: one end of the transverse connecting rod is provided with a strong magnetic suction base, the strong magnetic suction base is fixedly adsorbed on the spindle box, the lower end of the vertical connecting rod is provided with an infrared point thermometer, the outer end of the longitudinal connecting rod is provided with a downward bending section, and the lower end of the bending section is provided with a contact type tool setting gauge.
9. The titanium alloy milling non-contact measurement tool temperature measurement device of claim 8, wherein: and a tangent plane is respectively arranged along the axial direction of the transverse connecting rod, the longitudinal connecting rod and the vertical connecting rod, so that the locking bolt is convenient to position, and scale marks are arranged on the tangent plane.
10. The titanium alloy milling non-contact measurement tool temperature measurement device of claim 6, wherein: polishing and grinding the surface of the workpiece to improve the flatness of the upper surface, and transmitting signals received by the computer to a monitor or a personal information terminal through a wireless network or a wired network; the infrared thermometer is a high-precision thermometer; the width of the micro-groove is less than 1mm, so that only measuring light beams can pass through the micro-groove.
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| DE359477C (en) * | 1922-09-23 | Heinrich Verbeek Dipl Ing | Tool | |
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| CN101244523B (en) * | 2008-02-27 | 2011-05-25 | 浙江工业大学 | Laser process testing method and special instrument |
| CN103028771B (en) * | 2012-12-24 | 2015-06-24 | 黄山学院 | Milling cutter capable of preventing deformation in milling process |
| CN104678897B (en) * | 2015-01-27 | 2017-10-27 | 合肥京东方光电科技有限公司 | Supervising device and method, display base plate cutting and edging device |
| CN206029464U (en) * | 2016-09-20 | 2017-03-22 | 天津大学 | Measurement device for simultaneous measurement milling process milling cutter and workpiece temperature |
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| DE4103166A1 (en) * | 1990-07-09 | 1992-01-23 | Schulz Rudolf | Real=time quality control for workpiece manufacturing process - uses sensor mechanisms to monitor each stage of process simultaneously to enable maintenance of tolerances |
| CN103737436A (en) * | 2014-01-13 | 2014-04-23 | 南京工程学院 | Cutting temperature measurement system based on optical fiber sensing |
| CN106001613A (en) * | 2016-07-28 | 2016-10-12 | 哈尔滨工业大学 | Laser heating assisted turning device and method |
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