CN114193233B - Device for installing and debugging optical probe on machining center and use method - Google Patents
Device for installing and debugging optical probe on machining center and use method Download PDFInfo
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- CN114193233B CN114193233B CN202111375439.9A CN202111375439A CN114193233B CN 114193233 B CN114193233 B CN 114193233B CN 202111375439 A CN202111375439 A CN 202111375439A CN 114193233 B CN114193233 B CN 114193233B
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- 239000000523 sample Substances 0.000 title claims abstract description 97
- 230000003287 optical effect Effects 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 47
- 238000005259 measurement Methods 0.000 claims abstract description 35
- 238000012360 testing method Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003754 machining Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013499 data model Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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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
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2452—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces
- B23Q17/2471—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces of workpieces
Abstract
The invention relates to an optical probe installation and debugging device for a machining center and a use method thereof, wherein the device comprises an installation head which is installed on a universal tool handle or a magnetic meter seat of a machine tool and is used for positioning and fastening in the machine tool; the rotary adjusting structure is connected to the lower part of the mounting head and comprises a first rotary adjusting piece and a second rotary adjusting piece, the first rotary adjusting piece is fixedly connected with the lower end part of the mounting head in a rotary adjusting mode along the Y axis, and the upper end part of the second rotary adjusting piece is fixedly connected with the lower end part of the first rotary adjusting piece in a rotary adjusting mode along the X axis; the electronic microscope comprises an optical probe fixing piece, wherein the optical probe fixing piece is connected with the lower end of a second rotary adjusting piece in a transversely adjustable mode, a mounting ring is arranged on the optical probe fixing piece at one end far away from the connection with the second rotary adjusting piece, a plurality of radial top thread holes are uniformly distributed on the side wall of the mounting ring along the circumferential direction, a fine adjustment top thread is arranged in each radial top thread hole, and the electronic microscope is fastened in the mounting ring by the fine adjustment top threads. The invention has high measurement accuracy and wide application range.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to an installation and debugging device for an optical probe on a machining center and a use method thereof.
Background
In the process of machining the stone machining center, a workpiece is affected by machining deformation errors, clamping errors, measuring errors, cutter clamping errors, cutter abrasion errors, environmental temperature and humidity and other factors, so that the precision of the machined workpiece generates corresponding deviation. In order to obtain acceptable dimensional accuracy, shape and position accuracy, position accuracy and surface quality, the machining data are continuously adjusted. The main means is to use corresponding measuring tool or measuring instrument to detect whether the workpiece meets the drawing requirement, and to provide feeding amount for processing to qualified precision according to the measured data in the subsequent processing.
In reality, three ways of measuring the machining center are available:
first, the workpiece is measured by using the traditional measuring tool such as a ruler type measuring tool, an instrument type measuring tool, a standard rod and the like. The method can measure the workpiece without disassembling the workpiece, and can provide the machining feed amount to the qualified precision according to the measured data after the measurement. However, the conventional measuring tool cannot meet the measurement of all workpieces, such as micro holes, shallow grooves, curved surfaces, surface quality and sizes with accuracy exceeding that of the measuring tool. Moreover, the use of gauges is also limited by the experience of the operator, and the measured data is not true size.
And secondly, measuring the workpiece by using a contact type 3D probe of the machining center. Touch 3D probes are now commonly used in machining centers. Besides helping the machine tool to realize automatic alignment, the touch type 3D probe can still be used for automatic measurement by using a re-carrying program, and the alignment and measurement precision is high. The measured data can be directly provided to a machine tool to guide subsequent processing. Although the touch type 3D probe has high measurement precision, a data model can be established by collecting point location data to measure the precision of a curved surface or a shape and a position. But the micro holes, shallow grooves and surface quality still cannot be measured due to the probe diameter.
Thirdly, the dimension which cannot be measured by the method is measured by special measuring equipment such as a three-coordinate measuring instrument, a altimeter, a universal tool microscope and other measuring equipment after the workpiece is disassembled. The measuring precision is accurate and reliable. However, as the workpiece is disassembled and then measured, the workpiece is required to be clamped again for subsequent processing after the measurement, and factors such as secondary clamping errors, workpiece deformation errors, environmental temperature and humidity influence and the like are introduced in the process, the measurement data of the workpiece cannot accurately guide the subsequent processing.
All the above methods have uncertain factors, which cause the workpiece to fail to reach the expected machining precision and even cause the workpiece to be scrapped. For the above reasons, the measurement of the dimensional accuracy, the shape and position accuracy, the position accuracy and the surface quality of the workpiece can be realized if the optical probe is introduced. The measuring process does not detach the workpiece and does not scratch the workpiece due to contact with the workpiece. The measured data can be used for directly guiding subsequent processing. The production efficiency is improved, and the rejection rate is reduced.
However, the optical measurement device has a complex structure, and the installation, debugging and maintenance processes are tedious, so that the replacement of a plurality of processing centers can not be realized.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an installation and debugging device for an optical probe on a machining center and a use method.
One of the above objects of the present invention is achieved by the following technical solutions:
the device for installing and debugging the optical probe on the machining center is characterized by comprising an installing head, wherein the installing head is arranged on a universal tool handle or a magnetic meter seat of a machine tool and is used for positioning and fastening in the machine tool; the rotary adjusting structure is connected to the lower part of the mounting head and comprises a first rotary adjusting piece and a second rotary adjusting piece, the first rotary adjusting piece is fixedly connected with the lower end part of the mounting head in a rotary adjusting mode along the Y axis, and the upper end part of the second rotary adjusting piece is fixedly connected with the lower end part of the first rotary adjusting piece in a rotary adjusting mode along the X axis; the electronic microscope comprises an optical probe fixing piece, wherein the optical probe fixing piece is connected with the lower end of a second rotary adjusting piece in a mode of being adjustable in the transverse direction, a mounting ring is arranged at one end, far away from the connection with the second rotary adjusting piece, of the optical probe fixing piece, a plurality of radial top thread holes are uniformly distributed on the side wall of the mounting ring in the circumferential direction, a fine adjustment top thread is arranged in each radial top thread hole, and the electronic microscope is fastened in the mounting ring by the fine adjustment top threads.
Further: the utility model discloses a magnetic meter seat, including installation head, magnetic meter seat, mounting head, screw thread post structure, the top of installation head is for the external screw thread post structure that can be with magnetic meter seat fixed connection, and the middle part of installation head is general handle of a knife erection column structure, and the lower part of installation head is for being provided with the hollow cylinder structure of side trompil, is provided with circular constant head tank along the Y axle direction at hollow cylinder, is provided with the screw hole in the outside coaxial of circular constant head tank.
Further: the first rotary adjusting piece is of a two-section structure, the upper section is of a columnar structure which can be inserted into the hollow cylinder of the mounting head, the top of the columnar structure is provided with positioning rotating shafts extending from two ends, the positioning rotating shafts are in insertion fit with circular positioning grooves on the mounting head, and the upper end of the first rotary adjusting piece and the lower end of the mounting head are fixedly connected in a rotary adjusting mode along the Y axis through screws screwed into threaded holes in the mounting head; the lower extreme is provided with the hollow cylinder structure of side trompil, is provided with circular constant head tank along X axle direction at hollow cylinder, is provided with the screw hole in the outside coaxial of circular constant head tank.
Further: the second rotary adjusting piece is of a three-section structure, the upper section is of a columnar structure which can be inserted into the hollow cylinder of the first rotary adjusting piece, the top of the columnar structure is provided with positioning rotating shafts extending from two ends, the positioning rotating shafts are inserted and assembled with a circular positioning groove on the first rotary adjusting piece, and the upper end part of the second rotary adjusting piece is fixedly connected with the lower end of the first rotary adjusting piece in a rotatable adjusting mode along the X-axis direction through a screw screwed in a threaded hole on the first rotary adjusting piece; the middle section is a transverse connecting plate structure, and one end of the transverse connecting plate is fixedly connected with the lower end of the upper section of the second rotary adjusting piece; the lower section is of a vertical connecting column structure, and the upper end of the vertical connecting column is fixedly connected with the other end of the transverse connecting plate; and a square positioning groove and a radial threaded hole communicated with the square positioning groove are formed in the vertical connecting column, which is close to the lower end.
Further: the optical probe fixing piece consists of a mounting ring and a support arm which is connected with the outer side surface of the mounting ring along the radial direction of the mounting ring, and a long slot hole is arranged on the support arm along the transverse direction; the support arm is positioned and inserted into a square positioning groove on the second rotary adjusting piece, and the optical probe fixing piece is fixed below the second rotary adjusting piece in a transversely adjustable mode through a screw penetrating through the long slotted hole and connected to the radial threaded hole in the second rotary adjusting piece.
The second object of the present invention is achieved by the following technical scheme:
the application method of the optical probe installation and debugging device for the machining center is characterized by comprising the following steps of: the installation and debugging device comprises the following steps:
step 1, the mounting head is fixedly connected with a magnetic meter seat through a top external thread column in a threaded manner;
step 2, opening a safety door of a machining center, and adsorbing a magnetic gauge stand and an installation device of an optical probe to a proper safety position of a main shaft box of a machine tool;
step 3, mounting the electron microscope on the optical probe fixing piece, clamping and fixing;
and 4, electrifying the electron microscope and connecting the electron microscope with the WIFI equipment, and outputting image data to a computer or a mobile phone through WIFI connection. Selecting a proper fixed focus head for installation; adjusting the definition of the image by lifting a Z axis of a machine tool; loosening the fine-tuning jackscrew to manually rotate the electron microscope, adjusting the fine-tuning jackscrew until the output image is consistent with the direction of the workpiece, and tightly fixing the fine-tuning jackscrew to the electron microscope after the fine-tuning jackscrew is adjusted;
step 5, adjusting the measuring angle, namely finding a circular graph on the plane of the measured element or placing a standard circular test piece, marking points in an image displayed by a computer or a mobile phone, moving a machine tool, collecting the maximum length of the X direction and the Y direction on the circle through the marked points, and adjusting the angles of the first rotary adjusting piece and the second rotary adjusting piece to ensure that the maximum lengths of the circles in the X direction and the Y direction are consistent; the measuring angle at this time is the normal direction of the measured element plane; recording the coordinate value of the current optical probe position X-Y-Z, inputting into a machine tool and establishing a current measurement coordinate system;
step 6, using the marking points to move the machine tool to enable the marking points to be sequentially on the measured elements and reading the moving numerical value of the machine tool, namely measuring data;
and 7, after the measurement is finished, the magnetic gauge stand, the optical probe installation and debugging device on the processing center and the electron microscope are taken down together, and the lens cover is covered by the wiping lens and then placed in a safe and clean environment.
The third object of the present invention is achieved by the following technical scheme:
the application method of the optical probe installation and debugging device for the machining center is characterized by comprising the following steps of: the installation and debugging device comprises the following steps:
step 1, mounting a mounting head into a universal cutter handle by using a spring clamping core, and locking and fixing the mounting head;
step 2, mounting the electron microscope on an optical probe fixing piece, clamping and fixing;
step 3, installing and debugging the optical probe of the machining center and an electron microscope which are installed on the universal tool handle into a tool magazine of a machine tool, executing a program, and calling out the program to a main shaft of the machine tool;
step 4, electrifying the electron microscope and connecting the electron microscope with the WIFI equipment, and outputting image data to a computer or a mobile phone through the WIFI connection; selecting a proper fixed focus head for installation; adjusting the definition of the image by lifting a Z axis of a machine tool; after the adjustment, the fine adjustment jackscrew is fastened until the jackscrew is relatively fixed and does not fall off;
step 5, adjusting the measuring angle and the coincidence ratio of the optical probe and the center of the main shaft: finding a circular graph on the plane of the measured element or placing a standard circular test piece, marking points in an image displayed by a computer or a mobile phone, moving a machine tool, collecting the maximum length of the X direction and the Y direction on the circle through marked points, and adjusting the angles of the first rotary adjusting piece and the second rotary adjusting piece to ensure that the maximum lengths of the circle in the X direction and the Y direction are consistent, wherein the measuring angle is the normal direction of the plane of the measured element; then a fixed point such as intersection points of two sides or one point on the edge is found out as a target point on the measured workpiece, the main shaft is manually rotated, the condition that the marked point and the target point are not coincident in the rotating process is caused, at the moment, the lower part of the second rotary adjusting piece is in threaded connection with the position of the groove and the lower part of the optical probe fixing piece is in fine adjustment, the marked point and the target point are in constant coincidence in the rotating process, and the second rotary adjusting piece is locked to be in threaded connection with the lower part of the fixed rod and the fine adjustment jackscrew is used for fixing the electron microscope; manually rotating the main shaft again until the output image is consistent with the direction of the workpiece, and recording the current angle value of the main shaft of the machine tool; recording coordinate values of the X-Y-Z positions of the optical probe under the condition that the mark point and the origin of the measured workpiece coincide, inputting the coordinate values into a machine tool, and establishing a current measurement coordinate system;
step 6, using the marking points to move the machine tool to enable the marking points to be sequentially on the measured elements and reading the moving numerical value of the machine tool, namely measuring data;
step 7, after the measurement is finished, the tool handle and the optical probe on the processing center are installed and debugged, and the electron microscope is taken into the tool magazine together, so that the next measurement is convenient; or the tool handle is taken down, the optical probe on the machining center is provided with a debugging device and an electron microscope, and the tool is placed in an external tool cabinet for later use.
The invention has the advantages and positive effects that:
(1) The mounting and debugging device is stable and reliable in clamping, the lens is moved in the measuring process, position drift cannot occur, and measuring accuracy is improved.
(2) The installation and debugging device has various installation means, and can be installed on a universal knife handle or a magnetic meter seat; the device has wide application range, namely, after the light incidence angle is adjusted once, the device can be used in different machine tools and different stations.
(3) The invention has large measuring working angle range, and for the multi-axis machining center, only the optical probe needs to be adjusted to be parallel to the Z axis of the machine tool, the multi-axis machine tool can swing the workpiece to the normal direction of the measured element for measurement, and the X-Y-Z coordinate value of the probe during measurement can be input into the machine tool, so that the fixed focus value of the optical probe is fixed, and the workpiece can be conveniently and continuously measured. For the triaxial machining center, if the measuring element is in the X-Y plane of the machine tool, the optical probe is only required to be adjusted to be parallel to the Z axis of the machine tool, and the X-Y-Z coordinate value of the probe during measurement can be input into the machine tool, so that the fixed focus value of the optical probe is fixed, and the measured element in the X-Y plane can be conveniently and continuously measured. If the measuring element is not in the X-Y plane, such as a side surface or an angle surface, only two rotation adjusting parts are required to be rotated, the optical probe is adjusted to the normal direction of the measured element for measurement, and the debugging process is simple and quick.
(4) The optical probe can be used for multiple times or multiple machines after one-time debugging. If the optical probe is arranged on the universal tool handle, the center point of the optical probe can be adjusted to the rotation center of the main shaft by roughly adjusting the position of the bolt at the lower part of the second rotary adjusting rod on the groove and finely adjusting the jackscrew at the lower part of the fixed rod, and the adjusted optical probe can be retracted into the tool magazine for repeated use. Or directly detaching the tool handle, recording the X-Y-Z coordinate value of the current optical probe, and inputting the X-Y-Z coordinate value of the optical probe on a machine tool with the same specification of other tool handles for direct use. The use interchangeability and the repeated positioning precision are high.
(5) The invention has various measuring methods, can be used as a point taking tool for measuring the length and the dimension, and can also be directly measured in software by means of imaging equipment.
(6) The invention has high measurement precision, and the amplification ratio of the optical probe is 10 to 2000 times of the error between the workpiece value measured by the microscopic measurement and the value measured by the special measurement equipment is 0.005MM. The measurement target has no other condition restrictions.
(7) By adopting the invention, the workpiece is not damaged during measurement.
(8) The clamping device is safe and reliable, and the safety standard of a tool magazine can be met if the clamping device is arranged on a universal tool handle. The device is arranged on the magnetic meter seat, and is only measured when the safety door of the machine tool is opened, and the device is convenient to take out after measurement. The machining precision and the service life of the machine tool are not affected, and the safety standard is met.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an installation and debugging device of the present invention;
FIG. 2 is a schematic view of the structure of the mounting head of the present invention;
FIG. 3 is a schematic view of a first rotary adjusting member according to the present invention;
FIG. 4 is a schematic view of a second rotary adjusting member according to the present invention;
FIG. 5 is a schematic view of the structure of the optical probe holder of the present invention;
Detailed Description
The structure of the present invention will be further described by way of examples with reference to the accompanying drawings. It should be noted that the present embodiments are illustrative and not restrictive.
An optical probe installation and debugging device for a machining center, please refer to fig. 1-5, comprises an installation head 1, a first rotation adjusting piece 2, a second rotation adjusting piece 3 and an optical probe fixing piece 4.
The installation head is of a three-section structure, the top 1.1 of the installation head is of an external thread column structure which can be fixedly connected with a magnetic meter base, the middle 1.2 of the installation head is of a universal tool shank installation column structure, the lower 1.3 of the installation head is of a hollow cylinder structure provided with side holes, a circular positioning groove 1.3.1 is formed in the hollow cylinder along the Y-axis direction, and a threaded hole 1.3.2 is coaxially formed in the outer side of the circular positioning groove.
The installation head can be assembled and fixed with the magnetic meter seat through the external thread column at the top, so that the installation and debugging device can be directly connected with the magnetic meter seat, and the installation device is directly installed on the machine tool through the magnetic meter seat, so that the installation type I is provided. The mounting column can be mounted on a universal cutter handle, then the cutter handle can be directly mounted on a main shaft of a machining center, and the cutter handle is a universal part of the machining center, so that the mounting device can be rapidly mounted and used among other machining center machine tools, and is convenient to interchange, and the mounting device is in a second mounting mode.
The first rotary adjusting piece is of a two-section structure, the upper section 2.2 is of a columnar structure which can be inserted into a hollow cylinder of the mounting head, a positioning rotating shaft part 2.1 extending out of two ends is arranged at the top of the columnar structure, the positioning rotating shaft part is assembled with a circular positioning groove on the mounting head in an inserting way, and the upper end part of the first rotary adjusting piece and the lower end of the mounting head are fixedly connected in a rotary adjusting mode along a Y axis through screws screwed into threaded holes in the mounting head. I.e. to achieve rotational adjustment in the X-Z plane (adjustment of the rotational angle about the Y axis, ranging from 0 degrees to 180 degrees). The lower section 2.3 of the first rotary adjusting piece is of a hollow cylinder structure provided with a side opening, a circular positioning groove 2.3.1 is formed in the hollow cylinder along the X-axis direction, and a threaded hole 2.3.2 is coaxially formed in the outer side of the circular positioning groove.
The second rotary adjusting piece is of a three-section structure, the upper section 3.2 is of a columnar structure which can be inserted into the hollow cylinder of the first rotary adjusting piece, the top of the columnar structure is provided with positioning rotating shafts 3.1 extending from two ends, the positioning rotating shafts are assembled with a circular positioning groove on the first rotary adjusting piece in an inserting way, and the upper end of the second rotary adjusting piece and the lower end of the first rotary adjusting piece are fixedly connected in a rotary adjusting mode along the X-axis direction through screws screwed into threaded holes in the first rotary adjusting piece. The rotation adjustment in the Y-Z plane (the adjustment of the rotation angle around the X axis, the range of which is 0 to 180 degrees) can be realized. The middle section 3.3 is a transverse connecting plate structure, and one end of the transverse connecting plate is fixedly connected with the lower end of the upper section of the second rotary adjusting piece. The lower section 3.4 is of a vertical connecting column structure, and the upper end of the vertical connecting column is fixedly connected with the other end of the transverse connecting plate; a square positioning groove 3.4.1 and a radial threaded hole 3.4.2 communicated with the square positioning groove are arranged on the vertical connecting column near the lower end.
The optical probe fixing piece consists of a mounting ring 4.1 and a support arm 4.2 which is connected with the outer side surface of the mounting ring along the radial direction of the mounting ring, and a long slot hole 4.2.1 is arranged on the support arm along the transverse direction; the support arm is positioned and inserted into a square positioning groove on the second rotary adjusting piece, and the optical probe fixing piece is fixed below the second rotary adjusting piece in a transversely adjustable mode through a screw penetrating through the long slotted hole and connected to the radial threaded hole in the second rotary adjusting piece. The second rotation adjusting piece is connected with the optical probe fixing piece through a groove positioning screw, and the optical probe position can be roughly positioned to the main shaft rotation center position through the stroke of the groove. The screw top is connected and fastened stably.
A plurality of radial top thread holes 4.1.1 are uniformly distributed on the side wall of the mounting ring along the circumferential direction, a fine adjustment top thread 5 is arranged in each radial top thread hole, and the electron microscope is fastened in the mounting ring by the fine adjustment top threads. In the invention, the number of the fine adjustment jackscrews is preferably 4, the optical probe fixing piece is used for adjusting and fixing the electron microscope through the four fine adjustment jackscrews, and the center of the electron microscope can be overlapped with the center of the spindle through the low-speed rotation of the spindle of the machine tool.
One of the using methods of the optical probe installation and debugging device used in the machining center comprises the following steps:
step 1, the mounting head is fixedly connected with a magnetic meter seat through a top external thread column in a threaded manner;
step 2, opening a safety door of a machining center, and adsorbing a magnetic gauge stand and an installation device of an optical probe to a proper safety position of a main shaft box of a machine tool;
step 3, mounting the electron microscope on the optical probe fixing piece, clamping and fixing;
and 4, electrifying the electron microscope and connecting the electron microscope with the WIFI equipment, and outputting image data to a computer or a mobile phone through WIFI connection. Selecting a proper fixed focus head for installation; adjusting the definition of the image by lifting a Z axis of a machine tool; loosening the fine-tuning jackscrew to manually rotate the electron microscope, adjusting the fine-tuning jackscrew until the output image is consistent with the direction of the workpiece, and tightly fixing the fine-tuning jackscrew to the electron microscope after the fine-tuning jackscrew is adjusted;
step 5, adjusting the measuring angle, namely finding a circular graph on the plane of the measured element or placing a standard circular test piece, marking points in an image displayed by a computer or a mobile phone, moving a machine tool, collecting the maximum length of the X direction and the Y direction on the circle through the marked points, and adjusting the angles of the first rotary adjusting piece and the second rotary adjusting piece to ensure that the maximum lengths of the circles in the X direction and the Y direction are consistent; the measuring angle at this time is the normal direction of the measured element plane; recording the coordinate value of the current optical probe position X-Y-Z, inputting into a machine tool and establishing a current measurement coordinate system;
step 6, using the marking points to move the machine tool to enable the marking points to be sequentially on the measured elements and reading the moving numerical value of the machine tool, namely measuring data; the amplifying function of the optical probe can observe the surface tissue of the workpiece and detect the surface quality of microscopic cracks, mechanical scratches and the like. The optical probe can also calculate the current amplified scale by using the standard scale, and the measurement software at the computer or mobile phone end is directly used for inputting the accurate scale to measure the size.
And 7, after the measurement is finished, the magnetic gauge stand, the optical probe installation and debugging device on the processing center and the electron microscope are taken down together, and the lens cover is covered by the wiping lens and then placed in a safe and clean environment.
The second application method of the optical probe installation and debugging device for the machining center is as follows: the method comprises the following steps:
step 1, mounting a mounting head into a universal cutter handle by using a spring clamping core, and locking and fixing the mounting head;
step 2, mounting the electron microscope on an optical probe fixing piece, clamping and fixing;
step 3, installing and debugging the optical probe of the machining center and an electron microscope which are installed on the universal tool handle into a tool magazine of a machine tool, executing a program, and calling out the program to a main shaft of the machine tool;
step 4, electrifying the electron microscope and connecting the electron microscope with the WIFI equipment, and outputting image data to a computer or a mobile phone through the WIFI connection; selecting a proper fixed focus head for installation; adjusting the definition of the image by lifting a Z axis of a machine tool; after the adjustment, the fine adjustment jackscrew is fastened until the jackscrew is relatively fixed and does not fall off;
step 5, adjusting the measuring angle and the coincidence ratio of the optical probe and the center of the main shaft: finding a circular graph on the plane of the measured element or placing a standard circular test piece, marking points in an image displayed by a computer or a mobile phone, moving a machine tool, collecting the maximum length of the X direction and the Y direction on the circle through marked points, and adjusting the angles of the first rotary adjusting piece and the second rotary adjusting piece to ensure that the maximum lengths of the circle in the X direction and the Y direction are consistent, wherein the measuring angle is the normal direction of the plane of the measured element; then a fixed point such as intersection points of two sides or one point on the edge is found out as a target point on the measured workpiece, the main shaft is manually rotated, the condition that the marked point and the target point are not coincident in the rotating process is caused, at the moment, the lower part of the second rotary adjusting piece is in threaded connection with the position of the groove and the lower part of the optical probe fixing piece is in fine adjustment, the marked point and the target point are in constant coincidence in the rotating process, and the second rotary adjusting piece is locked to be in threaded connection with the lower part of the fixed rod and the fine adjustment jackscrew is used for fixing the electron microscope; manually rotating the main shaft again until the output image is consistent with the direction of the workpiece, and recording the current angle value of the main shaft of the machine tool; recording coordinate values of the X-Y-Z positions of the optical probe under the condition that the mark point and the origin of the measured workpiece coincide, inputting the coordinate values into a machine tool, and establishing a current measurement coordinate system;
step 6, using the marking points to move the machine tool to enable the marking points to be sequentially on the measured elements and reading the moving numerical value of the machine tool, namely measuring data; the amplifying function of the optical probe can observe the surface tissue of the workpiece and detect the surface quality of microscopic cracks, mechanical scratches and the like. The optical probe can also calculate the current amplified scale by using the standard scale, and the measurement software at the computer or mobile phone end is directly used for inputting the accurate scale to measure the size.
Step 7, after the measurement is finished, the tool handle and the optical probe on the processing center are installed and debugged, and the electron microscope is taken into the tool magazine together, so that the next measurement is convenient; or the tool handle, the processing center optical probe mounting and debugging device and the electron microscope are taken down and placed in an external tool cabinet for later use.
Although the embodiments of the present invention and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit of the invention and the appended claims, and therefore the scope of the invention is not limited to the embodiments and the disclosure of the drawings.
Claims (7)
1. The device for installing and debugging the optical probe on the machining center is characterized by comprising an installing head, wherein the installing head is arranged on a universal tool handle or a magnetic meter seat of a machine tool and is used for positioning and fastening in the machine tool; the rotary adjusting structure is connected to the lower part of the mounting head and comprises a first rotary adjusting piece and a second rotary adjusting piece, the first rotary adjusting piece is fixedly connected with the lower end part of the mounting head in a rotary adjusting mode along the Y axis, and the upper end part of the second rotary adjusting piece is fixedly connected with the lower end part of the first rotary adjusting piece in a rotary adjusting mode along the X axis; the electronic microscope comprises an optical probe fixing piece, wherein the optical probe fixing piece is connected with the lower end of a second rotary adjusting piece in a mode of being adjustable in the transverse direction, a mounting ring is arranged at one end, far away from the connection with the second rotary adjusting piece, of the optical probe fixing piece, a plurality of radial top thread holes are uniformly distributed on the side wall of the mounting ring in the circumferential direction, a fine adjustment top thread is arranged in each radial top thread hole, and the electronic microscope is fastened in the mounting ring by the fine adjustment top threads.
2. The apparatus for installing and adjusting an optical probe in a machining center according to claim 1, wherein: the utility model discloses a magnetic meter seat, including installation head, magnetic meter seat, mounting head, screw thread post structure, the top of installation head is for the external screw thread post structure that can be with magnetic meter seat fixed connection, and the middle part of installation head is general handle of a knife erection column structure, and the lower part of installation head is for being provided with the hollow cylinder structure of side trompil, is provided with circular constant head tank along the Y axle direction at hollow cylinder, is provided with the screw hole in the outside coaxial of circular constant head tank.
3. The apparatus for installing and adjusting an optical probe in a machining center according to claim 2, wherein: the first rotary adjusting piece is of a two-section structure, the upper section is of a columnar structure which can be inserted into the hollow cylinder of the mounting head, the top of the columnar structure is provided with positioning rotating shafts extending from two ends, the positioning rotating shafts are in insertion fit with circular positioning grooves on the mounting head, and the upper end of the first rotary adjusting piece and the lower end of the mounting head are fixedly connected in a rotary adjusting mode along the Y axis through screws screwed into threaded holes in the mounting head; the lower extreme is provided with the hollow cylinder structure of side trompil, is provided with circular constant head tank along X axle direction at hollow cylinder, is provided with the screw hole in the outside coaxial of circular constant head tank.
4. The apparatus for installing and adjusting an optical probe in a machining center according to claim 3, wherein: the second rotary adjusting piece is of a three-section structure, the upper section is of a columnar structure which can be inserted into the hollow cylinder of the first rotary adjusting piece, the top of the columnar structure is provided with positioning rotating shafts extending from two ends, the positioning rotating shafts are inserted and assembled with a circular positioning groove on the first rotary adjusting piece, and the upper end part of the second rotary adjusting piece is fixedly connected with the lower end of the first rotary adjusting piece in a rotatable adjusting mode along the X-axis direction through a screw screwed in a threaded hole on the first rotary adjusting piece; the middle section is a transverse connecting plate structure, and one end of the transverse connecting plate is fixedly connected with the lower end of the upper section of the second rotary adjusting piece; the lower section is of a vertical connecting column structure, and the upper end of the vertical connecting column is fixedly connected with the other end of the transverse connecting plate; and a square positioning groove and a radial threaded hole communicated with the square positioning groove are formed in the vertical connecting column, which is close to the lower end.
5. The apparatus for mounting and adjusting an optical probe in a machining center according to claim 4, wherein: the optical probe fixing piece consists of a mounting ring and a support arm which is connected with the outer side surface of the mounting ring along the radial direction of the mounting ring, and a long slot hole is arranged on the support arm along the transverse direction; the support arm is positioned and inserted into a square positioning groove on the second rotary adjusting piece, and the optical probe fixing piece is fixed below the second rotary adjusting piece in a transversely adjustable mode through a screw penetrating through the long slotted hole and connected to the radial threaded hole in the second rotary adjusting piece.
6. The application method of the optical probe installation and debugging device for the machining center is characterized by comprising the following steps of: the device for installing and debugging the optical probe on the machining center based on the method of claim 5 comprises the following steps:
step 1, the mounting head is fixedly connected with a magnetic meter seat through a top external thread column in a threaded manner;
step 2, opening a safety door of a machining center, and adsorbing a magnetic gauge stand and an installation device of an optical probe to a proper safety position of a main shaft box of a machine tool;
step 3, mounting the electron microscope on the optical probe fixing piece, clamping and fixing;
step 4, electrifying the electron microscope and connecting the electron microscope with the WIFI equipment, outputting image data to a computer or a mobile phone through WIFI connection, and selecting a proper fixed focus for installation; adjusting the definition of the image by lifting a Z axis of a machine tool; loosening the fine-tuning jackscrew to manually rotate the electron microscope, adjusting the fine-tuning jackscrew until the output image is consistent with the direction of the workpiece, and tightly fixing the fine-tuning jackscrew to the electron microscope after the fine-tuning jackscrew is adjusted;
step 5, adjusting the measuring angle, namely finding a circular graph on the plane of the measured element or placing a standard circular test piece, marking points in an image displayed by a computer or a mobile phone, moving a machine tool, collecting the maximum length of the X direction and the Y direction on the circle through the marked points, and adjusting the angles of the first rotary adjusting piece and the second rotary adjusting piece to ensure that the maximum lengths of the circles in the X direction and the Y direction are consistent; the measuring angle at this time is the normal direction of the measured element plane; recording the coordinate value of the current optical probe position X-Y-Z, inputting into a machine tool and establishing a current measurement coordinate system;
step 6, using the marking points to move the machine tool to enable the marking points to be sequentially on the measured elements and reading the moving numerical value of the machine tool, namely measuring data;
and 7, after the measurement is finished, the magnetic gauge stand, the optical probe installation and debugging device on the processing center and the electron microscope are taken down together, and the lens cover is covered by the wiping lens and then placed in a safe and clean environment.
7. The application method of the optical probe installation and debugging device for the machining center is characterized by comprising the following steps of: the device for installing and debugging the optical probe on the machining center based on the method of claim 5 comprises the following steps:
step 1, mounting a mounting head into a universal cutter handle by using a spring clamping core, and locking and fixing the mounting head;
step 2, mounting the electron microscope on an optical probe fixing piece, clamping and fixing;
step 3, installing and debugging the optical probe of the machining center and an electron microscope which are installed on the universal tool handle into a tool magazine of a machine tool, executing a program, and calling out the program to a main shaft of the machine tool;
step 4, electrifying the electron microscope and connecting the electron microscope with the WIFI equipment, and outputting image data to a computer or a mobile phone through the WIFI connection; selecting a proper fixed focus head for installation; adjusting the definition of the image by lifting a Z axis of a machine tool; after the adjustment, the fine adjustment jackscrew is fastened until the jackscrew is relatively fixed and does not fall off;
step 5, adjusting the measuring angle and the coincidence ratio of the optical probe and the center of the main shaft: finding a circular graph on the plane of the measured element or placing a standard circular test piece, marking points in an image displayed by a computer or a mobile phone, moving a machine tool, collecting the maximum length of the X direction and the Y direction on the circle through marked points, and adjusting the angles of the first rotary adjusting piece and the second rotary adjusting piece to ensure that the maximum lengths of the circle in the X direction and the Y direction are consistent, wherein the measuring angle is the normal direction of the plane of the measured element; then a fixed point such as intersection points of two sides or one point on the edge is found out as a target point on the measured workpiece, the main shaft is manually rotated, the condition that the marked point and the target point are not coincident in the rotating process is caused, at the moment, the lower part of the second rotary adjusting piece is in threaded connection with the position of the groove and the lower part of the optical probe fixing piece is in fine adjustment, the marked point and the target point are in constant coincidence in the rotating process, and the second rotary adjusting piece is locked to be in threaded connection with the lower part of the fixed rod and the fine adjustment jackscrew is used for fixing the electron microscope; manually rotating the main shaft again until the output image is consistent with the direction of the workpiece, and recording the current angle value of the main shaft of the machine tool; recording coordinate values of the X-Y-Z positions of the optical probe under the condition that the mark point and the origin of the measured workpiece coincide, inputting the coordinate values into a machine tool, and establishing a current measurement coordinate system;
step 6, using the marking points to move the machine tool to enable the marking points to be sequentially on the measured elements and reading the moving numerical value of the machine tool, namely measuring data;
step 7, after the measurement is finished, the tool handle and the optical probe on the processing center are installed and debugged, and the electron microscope is taken into the tool magazine together, so that the next measurement is convenient; or the tool handle, the processing center optical probe mounting and debugging device and the electron microscope are taken down and placed in an external tool cabinet for later use.
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| CN114193233A (en) | 2022-03-18 |
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