CN114227377B - Photoelectric installation type tool setting gauge - Google Patents

Photoelectric installation type tool setting gauge Download PDF

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Publication number
CN114227377B
CN114227377B CN202210103969.6A CN202210103969A CN114227377B CN 114227377 B CN114227377 B CN 114227377B CN 202210103969 A CN202210103969 A CN 202210103969A CN 114227377 B CN114227377 B CN 114227377B
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China
Prior art keywords
photoelectric
numerical control
tool setting
contourgraph
setting gauge
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CN202210103969.6A
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CN114227377A (en
Inventor
李国奎
鲁士军
江伟
江孝伟
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Sichuan College of Architectural Technology
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Sichuan College of Architectural Technology
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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
    • B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
    • B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
    • B23Q15/22—Control or regulation of position of tool or workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Machine Tool Sensing Apparatuses (AREA)

Abstract

The invention provides a photoelectric installation type tool setting gauge, and relates to the technical field of numerical control machining assistance. This photoelectricity installation formula tool setting appearance, including unable adjustment base, unable adjustment base upper end one side middle part fixedly connected with installation stand, terminal surface upper portion is provided with sways the pillow before the installation stand, sway and fix on the pillow and be provided with the photoelectricity contourgraph, the fixed calculation module that is provided with in unable adjustment base upper end one side, the fixed data transmission interface that is provided with in calculation module upper end one side, the inside fixed bayonet joint that is provided with of data transmission interface, fixedly connected with data transmission line on the bayonet joint. The invention provides a photoelectric installation type tool setting gauge which can select the most appropriate photoelectric module according to production requirements, field production environment, size of a machine tool, cost requirements and the like, can select the appropriate photoelectric module according to different positions of measured objects, and ensures accurate measurement, higher measurement precision and stronger interference resistance.

Description

Photoelectric installation type tool setting gauge
Technical Field
The invention relates to the technical field of numerical control machining assistance, in particular to a photoelectric installation type tool setting gauge.
Background
The most important step in the process of numerical control machining is to determine the position relation between a workpiece and a cutter and establish a workpiece coordinate system, namely commonly called tool setting. The existing "tool setting" technology generally uses an edge finder (also called as a tool setting gauge and an aligner), which is a detection tool for accurately determining the center position of a workpiece to be processed in numerical control processing. The edge finder has the working principle that one side of the edge finder is selected to be zero on an X axis, the other side of the edge finder is selected to obtain a numerical value, one half of the numerical value is taken as the middle point of the X axis, and then the origin of the Y axis is found out by the same method, so that the machining center of a workpiece on an XY plane is determined.
At present, the commonly used edge finder comprises a photoelectric edge finder and an eccentric edge finder, the working principle of the photoelectric induction edge finder is that the electric conductivity of a workpiece is utilized, when a ball head contacts the surface of the workpiece, a current forms a loop, a sound and light alarm signal is sent out, the ball head is connected with a body by a spring, the coordinate position of the surface to be measured can be obtained by the indication of the photoelectric edge finder and the coordinate position of a machine tool, and the edge finder can be clamped on a main shaft of the numerical control machine tool to be used for aligning, aligning and measuring the workpiece by utilizing the characteristics of the edge finder; the eccentric edge finder consists of a clamping part and a measuring part, wherein the clamping part and the measuring part are tensioned by a spring, the clamping part of the edge finder is generally arranged on a tool handle and is arranged on a main shaft of a numerical control machine, the measuring part is generally a cylindrical surface with a small diameter, a measuring head of the eccentric edge finder is controlled by a machine tool hand wheel to be close to the surface of a workpiece, after the measuring head is contacted with the surface of the workpiece, the eccentric part rotates concentrically with the clamping part gradually to control the edge finder to move, the edge finder stops moving at the moment when the measuring head is eccentric again, and at the moment, the relative distance between the surface of the workpiece and the central position of the main shaft of the machine tool can be determined, so that the positioning is completed.
The existing edge finder needs manual operation, calculation, input and other steps, has high error probability, long time and low efficiency, and cannot be expanded and memorized.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a photoelectric installation type tool setting gauge, which solves the problems that the existing edge finder needs manual operation, calculation, input and other steps, the error probability is high, the time is long, the efficiency is low, and the expansion and the memory cannot be realized.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a photoelectric installation type tool setting gauge comprises a numerical control machine tool connecting device, a photoelectric measuring device and a calculating module;
the photoelectric measuring device comprises a photoelectric contourgraph, a laser emitter and a CMOS imaging device are fixedly arranged on the photoelectric contourgraph, the CMOS imaging device receives reflected light emitted by the laser emitter and reflected by an object to be measured, and sends an optical signal reflecting the position and the shape of the object to be measured to a computing module;
and the calculation module collects the optical signals, calculates the position and the shape of the object to be measured, and converts the position and the shape of the object to be measured with the position and the shape of other objects to be measured stored in the calculation module to complete tool setting.
Preferably, the method further comprises the following steps:
the photoelectric contourgraph measuring device comprises a fixed base, wherein a mounting upright post is fixedly connected to the middle of one side of the upper end of the fixed base, a swing pillow is arranged on the upper portion of the front end face of the mounting upright post, the photoelectric contourgraph is fixedly arranged on the swing pillow, the calculating module is fixedly arranged on one side of the upper end of the fixed base, a data transmission interface is fixedly arranged on one side of the upper end of the calculating module, a plug connector is fixedly arranged in the data transmission interface, and a data transmission line is fixedly connected to the plug connector;
the numerical control machine tool connecting device comprises a connecting slide block and a guide key, wherein the connecting slide block is fixedly arranged on one side of the lower end of the fixed base, and a guide piece is fixedly arranged in the middle of one side, away from the connecting slide block, of the lower end of the fixed base.
Preferably, the calculation module automatically calculates the coordinate difference of the object to be measured twice before and after, and finds the origin of coordinates of the object to be measured behind.
Preferably, one end of the data transmission line, which is far away from the calculation module, is electrically connected with a numerical control system of the numerical control machine tool.
Preferably, the origin of coordinates is sent to a numerical control system of the numerical control machine tool so as to complete tool setting.
Preferentially, a digital display screen is fixedly arranged on one side of the installation upright post.
On the other hand, the application also protects an installation and use method of the photoelectric installation type tool setting gauge, which comprises the following steps:
s1, firstly, fixedly installing a fixed base on a workbench of a numerical control machine tool through a connecting sliding block and a guide piece at the lower end of the fixed base;
s2, after the workpiece is installed, measuring the X \ Y \ Z coordinates of the workpiece by using a photoelectric profile instrument, automatically calculating the difference value of the coordinates and the coordinates of the workpiece measured in the previous time by using a calculation module, transmitting the difference value to a G54-G59 coordinate system of the numerical control system in real time through a usb interface, finishing data refreshing, and automatically establishing a new coordinate system;
and S3, enabling the cutter to approach the photoelectric contourgraph, measuring the position of the cutter by the photoelectric contourgraph, reading the position information of the cutter by the computing module, transmitting the position information to a numerical control system of the machine tool through a usb data transmission interface, and automatically storing the position information.
Preferentially, S4, the steps are completed again after the cutter is replaced, the calculation module can automatically calculate the difference value of the two measurements, and the calculation result is transmitted to a machine tool numerical control system to complete data updating;
preferentially, if the condition that a milling power head is installed on a workbench of the numerical control machine tool, the coordinate system is changed, the swing pillow can be rotated by 90-360 degrees for measurement, and the factor of coordinate system conversion is not considered.
Preferably, in step S2, when the first setting is performed, the photoelectric profiler will measure the zero point of the coordinate system of the workpiece, form data, and transmit the data to the numerical control system through the usb interface in real time.
(III) advantageous effects
The invention provides a photoelectric installation type tool setting gauge. The method has the following beneficial effects:
1. the invention provides a photoelectric installation type tool setting gauge, which can select the most appropriate photoelectric module according to the production requirement, the field production environment, the size of a machine tool, the cost requirement and the like by arranging components such as a guide mechanism, an installation mechanism, a fine adjustment mechanism, a photoelectric module, a built-in calculation module, a data transmission module and the like, can select the appropriate photoelectric module according to the position of a measured object, and ensures accurate measurement, higher measurement precision and stronger anti-interference capability.
2. The invention provides a photoelectric installation type tool setting gauge, wherein a fixed base is positioned and assembled on a workbench of a numerical control machine tool through a connecting slide block and a guide key, the quick setting can be carried out without replacing a main shaft cutter, the zero point of an X \ Y \ Z machine tool coordinate system is quickly measured and data is formed when the setting is carried out for the first time, the data is transmitted to a numerical control system through a usb interface in real time, when a workpiece is used again after being installed, three-party measurement of the X \ Y \ Z workpiece coordinate system is only needed to be carried out once, a built-in processor automatically calculates the difference value of two times of measurement and transmits the difference value to the numerical control system through the usb interface in real time, the system refreshes the data, and the coordinate system is automatically established, so that the steps of manual operation, calculation, recording and the like of the existing edge finder are reduced, the error probability is zero, the speed is high, the efficiency is high, hundreds of coordinate systems can be simultaneously memorized, the data can be exported in real time, and the use effect is better.
3. The invention provides a photoelectric installation type tool setting gauge, which is characterized in that an edge searching and positioning are carried out through a photoelectric contourgraph arranged at the upper end, laser is diffused into line laser through a cylindrical objective lens at the upper end and then is projected on the surface of a target object to form diffuse reflection, then reflected light is imaged on a CMOS, and displacement and shape are measured through detecting the change of position and shape, so that the detection mode is more convenient, the positioning is more accurate, and more accurate measurement can be ensured.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a side view of the present invention;
fig. 3 is a front view of the present invention.
Wherein, 1, fixing the base; 2. mounting the upright post; 3. a swing pillow; 4. a photoelectric contourgraph; 401. a laser emitting head; 402. a high-precision CMOS imaging device; 5. a digital display screen; 6. connecting the sliding block; 7. a guide member; 8. a calculation module; 9. a data transmission interface; 10. a plug-in connector; 11. and a data transmission line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a photoelectric mounting tool setting gauge comprises a numerical control machine connecting device 6, a photoelectric measuring device 7 and a calculating module 8;
the photoelectric measuring device comprises a photoelectric contourgraph 4, the photoelectric contourgraph 4 is fixedly provided with a laser emitter 401 and a CMOS imaging device 402, the CMOS imaging device 402 receives reflected light emitted by the laser emitter 401 and reflected by an object to be measured, and sends an optical signal reflecting the position and the shape of the object to be measured to a computing module 8; the working principle of the photoelectric contourgraph 4 is as follows: laser is diffused into linear laser through a cylindrical objective lens and then is projected on the surface of an object to form diffuse reflection. The displacement and shape are measured by detecting the change in position and shape after the reflected light is imaged on the CMOS.
The calculation module 8 collects the optical signal and calculates the position and shape of the object to be measured, and converts the position and shape of the object to be measured with the position and shape of other objects to be measured stored in the calculation module 8 to complete tool setting.
Example (b):
as shown in fig. 1-3, an embodiment of the present invention provides a photoelectric installation type tool setting gauge, which includes a fixed base 1, wherein an installation column 2 is fixedly connected to a middle portion of one side of an upper end of the fixed base 1, a swing pillow 3 is disposed on an upper portion of a front end surface of the installation column 2, a photoelectric profiler 4 is fixedly disposed on the swing pillow 3, a computing module 8 is fixedly disposed on one side of an upper end of the fixed base 1, a data transmission interface 9 is fixedly disposed on one side of an upper end of the computing module 8, a plug 10 is fixedly disposed inside the data transmission interface 9, a data transmission line 11 is fixedly connected to the plug 10, and a connection slider 6 is fixedly disposed on one side of a lower end of the fixed base 1.
Numerical control machine tool connecting device includes link block 6 and guide key 7, the fixed digital display screen 5 that is provided with in installation stand 2 one side, the fixed guide key 7 that is provided with in one side middle part that link block 6 was kept away from to the 1 lower extreme of unable adjustment base, the fixed laser emitter 401 that is provided with in 4 front ends upper portions of photoelectric contourgraph, the fixed high accuracy CMOS image device 402 that is provided with in 4 front ends lower parts of photoelectric contourgraph, the numerical control system electric connection of calculation module 8's one end and numerical control machine tool is kept away from to data transmission line 11, calculation module 8 internal fixation is provided with built-in treater.
Laser is diffused into linear laser through a cylindrical objective lens and then is projected on the surface of an object to form diffuse reflection. The displacement and shape are measured by detecting the change in position and shape after the reflected light is imaged on the CMOS.
The mounting and using method of the photoelectric mounting type tool setting gauge comprises the following steps:
s1, firstly, a fixed base 1 is fixedly arranged on a workbench of a numerical control machine tool through a connecting slide block 6 and a guide piece 7 at the lower end of the fixed base 1;
s2, when the first setting is carried out, the photoelectric contourgraph 4 quickly measures the zero point of the X \ Y \ Z machine tool coordinate system, forms data, and transmits the data to the numerical control system in real time through a usb interface, wherein the numerical control system is required to open the authority;
s3, when the photoelectric contourgraph 4 is used again after the workpiece is installed, three-way measurement of an X \ Y \ Z workpiece coordinate system is only needed to be carried out once, a built-in processor automatically calculates the difference value of the two-way measurement and transmits the difference value to a numerical control system through a usb interface in real time, the system finishes data refreshing, and the coordinate system is automatically established;
s4, enabling the cutter to approach the photoelectric contourgraph 4, measuring the position of the cutter by the photoelectric contourgraph 4, reading the position information of the cutter by the computing module 8, transmitting the position information of the cutter to a numerical control system of the machine tool through a usb data transmission interface 9, and automatically storing the position information;
s5, the steps are completed again after the cutter is replaced, the calculation module can automatically calculate the difference value of the two measurements, and the calculation result is transmitted to a machine tool numerical control system to complete data updating;
and S6, directly reading data through the digital display screen 5, and monitoring the working condition of the photoelectric contour instrument.
If the condition of installing a milling power head and the like exists on a workbench of the numerical control machine tool, the coordinate system is changed, the swing pillow can be rotated by 90-360 degrees for measurement, and the factor of coordinate system conversion is not considered.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A mounting and using method of a photoelectric mounting type tool setting gauge is characterized in that: the device comprises numerical control machine tool connecting devices (6, 7), a photoelectric measuring device and a calculating module (8);
the photoelectric measuring device comprises a photoelectric contourgraph (4), wherein a laser emitter (401) and a CMOS imaging device (402) are fixedly arranged on the photoelectric contourgraph (4), the CMOS imaging device (402) receives reflected light reflected by an object to be measured and emitted by the laser emitter (401), and sends an optical signal reflecting the position and the shape of the object to be measured to a calculating module (8);
the calculation module (8) collects the optical signals, calculates the position and the shape of the object to be measured, and compares the position and the shape of the object to be measured with the positions and the shapes of other objects to be measured stored in the calculation module (8) to complete tool setting;
further comprising:
the photoelectric contourgraph measuring instrument comprises a fixed base (1), wherein a mounting upright post (2) is fixedly connected to the middle of one side of the upper end of the fixed base (1), a swing pillow (3) is arranged on the upper portion of the front end face of the mounting upright post (2), the photoelectric contourgraph (4) is fixedly arranged on the swing pillow (3), a computing module (8) is fixedly arranged on one side of the upper end of the fixed base (1), a data transmission interface (9) is fixedly arranged on one side of the upper end of the computing module (8), a plug-in connector (10) is fixedly arranged in the data transmission interface (9), and a data transmission line (11) is fixedly connected to the plug-in connector (10);
the numerical control machine tool connecting devices (6 and 7) comprise connecting sliding blocks (6) and guide keys (7), the connecting sliding blocks (6) are fixedly arranged on one side of the lower end of the fixed base (1), and the guide keys (7) are fixedly arranged in the middle of one side, far away from the connecting sliding blocks (6), of the lower end of the fixed base (1);
the method comprises the following steps:
s1, firstly, a fixed base (1) is fixedly installed on a workbench of a numerical control machine tool through a connecting sliding block (6) and a guide key (7) at the lower end of the fixed base (1);
s2, after the workpiece is installed, measuring the X \ Y \ Z coordinates of the datum point of the main shaft relative to the workpiece by using a photoelectric profile instrument (4), automatically calculating the difference value of the coordinates and the coordinates of the workpiece measured in the previous time by using a calculation module (8), transmitting the difference value to a numerical control system in real time through a usb interface, finishing data refreshing, and automatically establishing a new coordinate system;
s3, enabling the cutter to be close to the photoelectric contourgraph (4), measuring the position of the cutter by the photoelectric contourgraph (4), reading the position information of the cutter by the computing module (8), transmitting the position information to a G54-G59 coordinate system of a numerical control system of the machine tool through a usb data transmission interface (9), and automatically storing the position information.
2. The mounting and using method of the photoelectric mounting type tool setting gauge according to claim 1, characterized in that: and the calculation module (8) automatically calculates the coordinate difference value of the object to be measured twice before and after, and finds the origin of coordinates of the object to be measured behind.
3. The mounting and using method of the photoelectric mounting type tool setting gauge according to claim 1, characterized in that: and one end of the data transmission line (11) far away from the calculation module (8) is electrically connected with a numerical control system of the numerical control machine tool.
4. The method for installing and using the photoelectric installation type tool setting gauge according to claim 2, characterized in that: and the origin of coordinates is sent to a numerical control system of the numerical control machine tool so as to finish tool setting.
5. The method for installing and using the photoelectric installation type tool setting gauge according to claim 1 or 2, characterized in that: and a digital display screen (5) is fixedly arranged on one side of the mounting upright post (2).
6. The mounting and using method of the photoelectric mounting type tool setting gauge according to claim 1, characterized in that:
and S4, after the cutter is replaced, the steps are completed again, the calculation module can automatically calculate the difference value of the two measurements, and the calculation result is transmitted to a machine tool numerical control system to complete data updating.
7. The method for installing and using the photoelectric installation type tool setting gauge according to claim 1 or 6, characterized in that: if a milling power head is arranged on a workbench of the numerical control machine tool, the coordinate system is changed, the swing pillow can be rotated by 90-360 degrees for measurement, and the factor of coordinate system conversion is not considered.
8. The mounting and using method of the photoelectric mounting type tool setting gauge according to claim 1, characterized in that: in the step S2, when the first setting is carried out, the photoelectric contourgraph (4) measures the zero point of the coordinate system of the workpiece, forms data and transmits the data to the numerical control system in real time through a usb interface.
CN202210103969.6A 2022-01-28 2022-01-28 Photoelectric installation type tool setting gauge Active CN114227377B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201109050Y (en) * 2007-11-16 2008-09-03 李志斌 Laser tool setting gauge of numerical control machine
WO2014132845A1 (en) * 2013-02-26 2014-09-04 三菱重工業株式会社 Tool shape measurement method and tool shape measurement device
CN106112701A (en) * 2016-07-22 2016-11-16 扬州恒德工业科技有限公司 A kind of combination type tool setting gauge
CN111051000A (en) * 2017-09-13 2020-04-21 瑞尼斯豪公司 Non-contact tool setting equipment and method
CN111774930A (en) * 2020-07-27 2020-10-16 上海威研精密科技有限公司 Vision on-machine tool setting gauge and tool setting method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3450909A1 (en) * 2017-09-05 2019-03-06 Renishaw PLC Non-contact optical tool setting apparatus and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201109050Y (en) * 2007-11-16 2008-09-03 李志斌 Laser tool setting gauge of numerical control machine
WO2014132845A1 (en) * 2013-02-26 2014-09-04 三菱重工業株式会社 Tool shape measurement method and tool shape measurement device
CN106112701A (en) * 2016-07-22 2016-11-16 扬州恒德工业科技有限公司 A kind of combination type tool setting gauge
CN111051000A (en) * 2017-09-13 2020-04-21 瑞尼斯豪公司 Non-contact tool setting equipment and method
CN111774930A (en) * 2020-07-27 2020-10-16 上海威研精密科技有限公司 Vision on-machine tool setting gauge and tool setting method thereof

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