CN114161226B - Machine tool spindle thermal deformation detection device - Google Patents
Machine tool spindle thermal deformation detection device Download PDFInfo
- Publication number
- CN114161226B CN114161226B CN202111587006.XA CN202111587006A CN114161226B CN 114161226 B CN114161226 B CN 114161226B CN 202111587006 A CN202111587006 A CN 202111587006A CN 114161226 B CN114161226 B CN 114161226B
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- China
- Prior art keywords
- machine tool
- detection frame
- sensor
- tool spindle
- base
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Links
- 238000001514 detection method Methods 0.000 title claims abstract description 100
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 16
- 239000010949 copper Substances 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 16
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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
- 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
- B23Q17/0904—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 before or after machining
-
- 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Control Of Machine Tools (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Abstract
The invention provides a thermal deformation detection device of a machine tool spindle, which is used for detecting the thermal deformation of the machine tool spindle and comprises a base, a detection frame and a sensor, wherein the base is detachably arranged on a workbench of the machine tool, the detection frame is detachably arranged on the base, the sensor is arranged on the detection frame, the detection frame is of a square hollow frame body structure, the sensor is detachably arranged on the detection frame in an upper layer and a lower layer along the axial direction of the machine tool spindle, part of the sensor is arranged along the radial direction of the machine tool spindle, part of the sensor is arranged along the axial direction of the machine tool spindle, the sensor can detect the distance between the spindle and each sensor, when the machine tool spindle is inserted into the detection frame, each sensor detects the relative position of the spindle, and the position deviation of the spindle is detected in a differential mode, and because the sensor is arranged around the spindle under the limit of the detection frame, the deviation of the spindle in all directions can be detected, and the precision of the thermal deformation detection of the spindle is ensured.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a thermal deformation detection device for a machine tool spindle.
Background
In the process of cutting machining of metal, a main shaft in a machine tool is affected by temperature in the environment, so that the main shaft can slightly deform, when the machining precision reaches a high degree, the deformation of the main shaft can affect the machining precision, therefore, the degree of thermal deformation of the main shaft of the machine tool needs to be detected, machining errors caused by temperature difference are compensated into machining dimensions, and in the process of detecting the thermal deformation of the main shaft, a detection device often cannot accurately judge the dimensional change of the main shaft, and displacement deviation is generated.
Disclosure of Invention
The invention aims to solve the technical problems that: in the existing spindle detection device, the dimensional change of the spindle cannot be accurately judged, and displacement deviation is generated.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a machine tool spindle heat deformation detection device for detect the heat altered of machine tool spindle, is used for detecting the heat altered of machine tool spindle, including the base that detachably installs on the workstation of lathe, detachably install the detection frame on the base and install the sensor on the detection frame, the detection frame is general square hollow frame structure, the sensor divide upper and lower two-layer detachably to install on the detection frame along the axial of lathe spindle, wherein part the sensor sets up along the radial of lathe spindle, part the sensor sets up along the axial of lathe spindle, the sensor can detect the interval between each sensor to the main shaft; the detection frame is inserted with a copper coil, and the sensor can be inserted into the copper coil in a matching way; the detection frame is also provided with a pressing screw which is arranged along the radial direction of the copper coil, the pressing screw is inserted on the detection frame in a matched mode, and the pressing screw abuts against and presses the sensor on the detection frame.
Further, the detection frame is provided with a through hole corresponding to the copper coil, the hole wall of the through hole is convexly provided with a rotation stopping lug, and when the copper coil is inserted into the through hole, the copper coil is clamped and embedded on the rotation stopping lug.
Further, a hole to be pressed is formed in the detection frame, and the pressing screw is inserted into the hole in a matched mode.
Further, the detection frame has two layers, the detection frame is installed along the axial of lathe main shaft in proper order stack on the base, the sensor is installed on keeping away from the detection frame of base.
Further, the sensor is of the model: EX-305 eddy current displacement meter.
Further, a positioning screw is inserted in the base in a matched mode, a screw head portion of the positioning screw is inserted in the workbench in a sliding mode, and a screw portion of the positioning screw is inserted in the base in a matched mode.
The invention has the advantages that the base is arranged on the workbench of the machine tool, the installation position is provided for the detection frame, a plurality of sensors are inserted on the detection frame, the sensors detect the main shaft through various angles, when the main shaft penetrates into the detection frame at fixed points, the offset before each processing of the main shaft can be detected, namely the thermal deformation offset of the main shaft is detected before each processing, the starting position of the main shaft in the machine tool is adjusted before the processing process is carried out, namely the cutter diameter compensation for carrying out thermal deformation on the main shaft is carried out, and because the detection frame is of a square hollow frame structure, the main shaft can penetrate from the top of the detection frame after the processing is finished, the sensors can carry out multi-level detection along the axial direction of the main shaft, the inclination of the main shaft is judged, and the precision degree of each detection of the thermal deformation of the main shaft is improved.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a perspective view in cross section of a machine tool spindle thermal deformation detection device of the present invention;
FIG. 2 is a top view of the machine tool spindle thermal deformation detection device of FIG. 1;
FIG. 3 is a front view of the machine tool spindle thermal deformation detection device of FIG. 2;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
in the figure: machine tool spindle thermal deformation detection device 100, spindle 200, base 10, detection frame 20, sensor 30, set screw 110, through hole 210, press hole 220, and copper coil 230.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention. On the contrary, the embodiments of the invention include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.
As shown in fig. 1 to 3, the present invention provides a machine tool spindle thermal deformation detection apparatus 100 mounted on a table of a machine tool, the machine tool spindle thermal deformation detection apparatus 100 including a base 10 detachably mounted on the table of the machine tool, a detection frame 20 detachably mounted on the base 10, and a sensor 30 interposed on the detection frame 20.
When the spindle 200 of the machine tool runs for a certain time, the spindle 200 is switched to a measuring core rod and then is positioned and inserted into the detection frame 20, under the detection of the sensor 30, the distance between the spindle 200 of the machine tool and the end part of the sensor 30 can be recorded, the distance is output to the machine tool, and the running stroke of the spindle 200 of the machine tool is compensated in the running process.
The base 10 is in a square block structure, the base 10 is detachably inserted with a positioning screw 110, the screw head part of the positioning screw 110 is inserted into a workbench of a machine tool, the screw rod part of the positioning screw 110 is inserted into the base 10, the base 10 can be fixedly arranged on the machine tool through the positioning screw 110, and the relative position of the base 10 can be positioned through a main shaft 200 of the machine tool, so that the positions of the detection frame 20 and the sensor 30 relative to the machine tool can be determined.
The detection frame 20 is of a generally square hollow frame body structure, at least two layers of detection frames 20 are arranged, the detection frames 20 can be sequentially arranged on the base 10 in a stacked mode along the axial direction of the machine tool spindle 200, the detection frames 20 are arranged away from the positioning screw 110, the sensors 30 are detachably arranged on the detection frames 20, the plurality of sensors 30 are uniformly distributed along the circumferential direction of the detection frames 20, when measuring core rods on the machine tool spindle 200 extend into the detection frames 20, the sensors 30 are arranged around the measuring core rods in a separated mode, the distance between the measuring core rods and the detection frames 20 can be detected through the sensors 30, the distance between each measuring core rod and the detection frames 20 is recorded, and the starting position of the machine tool spindle 200 is adjusted according to the recorded distance.
The sensor 30 is preferably of the type: the eddy current displacement meter of EX-305 has a plurality of sensors 30, the sensors 30 are detachably mounted horizontally on the detection frame 20 far from the base 10, and one of the sensors 30 is detachably inserted on the top surface of the detection frame 20 near to the base 10. Specifically, the side walls of each layer of the detection frame 20 are inserted with a plurality of sensors 30, the angle between each sensor 30 can be ensured by means of the vertical shape of the detection frame 20, the sensors 30 close to the base 10 are arranged along the axial direction of the main shaft 200, and the sensors 30 arranged on the side walls of the detection frame 20 are arranged along the direction vertical to the main shaft 200. Further, the sensor 30 on the side wall of the detection frame 30 can detect displacement deviation in the X direction and the Y direction, and the sensor 30 on the top wall of the detection frame 30 can detect displacement deviation of the spindle 200 in the Z direction.
The above-mentioned method for detecting displacement deviation is that after the measuring core rod is inserted into the detection frame 20 for the first time, the data detected by each sensor 30 is recorded, when the spindle 200 is inserted into the detection frame 20 again after running in the machine tool, the detection data of each sensor 30 is recorded again, the difference between the subsequent detection data and the first detection data is made, and the initial position of the spindle 200 in the machine tool is adjusted according to the data obtained by the difference, so as to ensure the machining precision of the spindle 200 of the machine tool.
More specifically, the sensor 30 is set on the detection frame 20 in two layers along the axial direction of the spindle 200 of the machine tool, and according to the data obtained by the difference between the two layers of sensors 30, the inclination angles of the spindle 200 in the X direction and the Y direction can be further calculated, and according to the inclination angle of the spindle 200, further dimension adjustment is performed in the machining process of the machine tool.
Preferably, a plurality of through holes 210 corresponding to the sensors 30 are formed on the side wall of the cross beam of the detection frame 20, the cross beam is a cross beam of the detection frame 20 perpendicular to the machine tool spindle 200, rotation stopping protrusions (not shown) are convexly arranged on the wall of the through hole 210, a pressing hole 220 vertically penetrating through the through hole 210 is further formed on the cross beam, copper rolls 230 for accommodating the sensors 30 are movably inserted into the through hole 210, the copper rolls 230 are matched with the through hole 210 with the rotation stopping protrusions, and the pressing hole 220 and the rotation stopping protrusions are respectively arranged on the wall of the through hole 210. After the sensor 30 is inserted into the through hole 210, a pressing screw is inserted into the pressing hole 220 in a threaded fit manner, and the positions of the copper coil 230 and the sensor 30 can be stabilized in the through hole 210 under the pressing action of the pressing screw.
Preferably, the two layers of the detection frame 20 are spliced through by extension screws, and the detection frame 20 is fixedly mounted on the base 10 through extension screws, so far, the detection frame 20 can be mounted on the base 10 after being assembled.
When the thermal deformation detection device 100 for a machine tool spindle is used, the base 10 is firstly mounted on a workbench of the machine tool by using the positioning screw 110, the position of the base 10 relative to the machine tool can be fixed under the stable positioning action of the positioning screw 110, then the relative coordinates of the base 10 can be determined by the machine tool spindle 200, the machine tool spindle 200 is ensured to be inserted into the detection frame 20 after the machining is completed, the measuring core rod can be switched, when the measuring core rod is inserted into the detection frame 20, the sensor 30 can measure the surface of the measuring core rod, and the distance between each stage of the measuring core rod in the axial direction and the sensor 30 is determined, so that the position of the measuring core rod when the measuring core rod is inserted into the detection frame 20 each time can be judged, and the machine tool spindle 200 is subjected to displacement debugging by counting the displacement deviation amount, so that the machining precision of the machine tool is improved.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (6)
1. A machine tool spindle thermal deformation detection device for detecting thermal deformation of a machine tool spindle, characterized in that: the device comprises a base, a detection frame and sensors, wherein the base is detachably arranged on a workbench of a machine tool, the detection frame is detachably arranged on the base, the sensors are inserted on the detection frame, the detection frame is of a square hollow frame structure, the sensors are detachably arranged on the detection frame along the axial direction of a main shaft of the machine tool in an upper layer and a lower layer, nine sensors are arranged, one sensor is detachably inserted on the top surface of the detection frame close to the base, four sensors are arranged on each layer, and each layer of sensor is uniformly distributed along the circumferential direction of the detection frame; wherein a part of the sensors are arranged along the radial direction of the machine tool spindle, a part of the sensors are arranged along the axial direction of the machine tool spindle, and the sensors can detect the distance between the machine tool spindle and each sensor; copper coils are inserted into the detection frame, and the sensors are inserted into the copper coils in a matched mode; the detection frame is also provided with a pressing screw which is arranged along the radial direction of the copper coil, the pressing screw is inserted on the detection frame in a matched mode, and the pressing screw abuts against and presses the sensor on the detection frame.
2. The machine tool spindle thermal deformation detection device according to claim 1, wherein: the detection frame is provided with a through hole corresponding to the copper coil, the wall of the through hole is convexly provided with a rotation stopping lug, and when the copper coil is inserted into the through hole, the copper coil is clamped and embedded on the rotation stopping lug.
3. The machine tool spindle thermal deformation detection device according to claim 1, wherein: and the detection frame is also provided with a pressing hole, and the pressing screw is inserted into the pressing hole in a matching manner.
4. The machine tool spindle thermal deformation detection device according to claim 1, wherein: the detection frame has two layers, the detection frame is installed along the axial of lathe main shaft in proper order superposes on the base, the sensor is installed on keeping away from the detection frame of base.
5. The machine tool spindle thermal deformation detection device according to claim 1, wherein: the sensor is of the type: EX-305 eddy current displacement meter.
6. The machine tool spindle thermal deformation detection device according to claim 1, wherein: the base is provided with a positioning screw in a matched and penetrating mode, the screw head part of the positioning screw is inserted into the workbench in a sliding mode, and the screw rod part of the positioning screw is inserted into the base in a matched and penetrating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111587006.XA CN114161226B (en) | 2021-12-23 | 2021-12-23 | Machine tool spindle thermal deformation detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111587006.XA CN114161226B (en) | 2021-12-23 | 2021-12-23 | Machine tool spindle thermal deformation detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114161226A CN114161226A (en) | 2022-03-11 |
| CN114161226B true CN114161226B (en) | 2024-02-23 |
Family
ID=80487990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111587006.XA Active CN114161226B (en) | 2021-12-23 | 2021-12-23 | Machine tool spindle thermal deformation detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114161226B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2437807A (en) * | 1943-11-08 | 1948-03-16 | Herbert Ltd A | Optical projection dividing head |
| CN102141391A (en) * | 2010-12-20 | 2011-08-03 | 哈尔滨海太精密量仪有限公司 | Cylinder hole comprehensive detector with function of detecting bulging quantity of cylinder sleeve end face |
| DE102011011415A1 (en) * | 2010-12-09 | 2012-06-14 | Indat Datensysteme + Industrieautomaten Gmbh | Method for checking cutting process of deburring tool used for drilling holes in workpiece e.g. spindle, involves applying electric voltage to produce error message, when there is no contact between cutting edges and contact plates |
| CN205021307U (en) * | 2015-06-09 | 2016-02-10 | 上海理工大学 | Main shaft gyration precision testing arrangement |
| CN106826394A (en) * | 2017-02-26 | 2017-06-13 | 邵阳学院 | Lathe main shaft diameter is to glitch detection method and device under machining state |
| CN110773807A (en) * | 2018-07-26 | 2020-02-11 | 株式会社迪思科 | Cutting device |
| CN113770807A (en) * | 2021-09-03 | 2021-12-10 | 西安交通大学 | A sensor fixing device for thermal error measurement of CNC machine tools |
-
2021
- 2021-12-23 CN CN202111587006.XA patent/CN114161226B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2437807A (en) * | 1943-11-08 | 1948-03-16 | Herbert Ltd A | Optical projection dividing head |
| DE102011011415A1 (en) * | 2010-12-09 | 2012-06-14 | Indat Datensysteme + Industrieautomaten Gmbh | Method for checking cutting process of deburring tool used for drilling holes in workpiece e.g. spindle, involves applying electric voltage to produce error message, when there is no contact between cutting edges and contact plates |
| CN102141391A (en) * | 2010-12-20 | 2011-08-03 | 哈尔滨海太精密量仪有限公司 | Cylinder hole comprehensive detector with function of detecting bulging quantity of cylinder sleeve end face |
| CN205021307U (en) * | 2015-06-09 | 2016-02-10 | 上海理工大学 | Main shaft gyration precision testing arrangement |
| CN106826394A (en) * | 2017-02-26 | 2017-06-13 | 邵阳学院 | Lathe main shaft diameter is to glitch detection method and device under machining state |
| CN110773807A (en) * | 2018-07-26 | 2020-02-11 | 株式会社迪思科 | Cutting device |
| CN113770807A (en) * | 2021-09-03 | 2021-12-10 | 西安交通大学 | A sensor fixing device for thermal error measurement of CNC machine tools |
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| Publication number | Publication date |
|---|---|
| CN114161226A (en) | 2022-03-11 |
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