阅读说明：本技术 一种数控刀具磨损的监测方法 (Method for monitoring abrasion of numerical control cutter ) 是由 杨永修 陆俊松 杨冬旭 胡正乙 王航 杨鹤童 于 2021-08-30 设计创作，主要内容包括：本发明公开了一种数控刀具磨损的监测方法,其施工流程有设备搭建→水平校准→通电测试→装配刀具→启动设备→光学监测→振动监测→完成监测,包括以下八个步骤。本发明有益效果在于,通过使用点阵激光投影检测,能够有效的对数控刀具的磨损程度、磨损位置以及转动时的振动幅度进行精确测量,并且装置在对数控刀具进行检测时,装置与数控刀具之间不存在夹持固定关系,可以对数控刀具进行多角度全方位的无伤检测,从而可以提升装置的检测精确度,保证数控加工过程中的精度和加工效果,提升数控加工的安全性,还可以减少数控刀具的检测成本,装置在检测过程中简单易操作,检测时装置处于全自动检测状态,可以防止人为操作引起的误差。(The invention discloses a method for monitoring wear of a numerical control cutter, which comprises the following eight steps of equipment construction → horizontal calibration → power-on test → assembly cutter → starting equipment → optical monitoring → vibration monitoring → completion monitoring. The invention has the advantages that the abrasion degree, the abrasion position and the vibration amplitude during rotation of the numerical control cutter can be effectively and accurately measured by using the dot matrix laser projection detection, and when the device is used for detecting the numerical control cutter, the device and the numerical control cutter do not have a clamping and fixing relationship, so that the multi-angle and all-dimensional non-damage detection can be carried out on the numerical control cutter, the detection accuracy of the device can be improved, the precision and the processing effect in the numerical control processing process are ensured, the safety of the numerical control processing is improved, the detection cost of the numerical control cutter can be reduced, the device is simple and easy to operate in the detection process, the device is in a full-automatic detection state during the detection, and errors caused by manual operation can be prevented.)

1. The utility model provides a monitoring method of numerical control cutter wearing and tearing, its construction flow has equipment to build → horizontal calibration → circular telegram test → assembly cutter → starting equipment → optical monitoring → vibration monitoring → completion monitoring, its characterized in that: comprises the following eight steps:

the method comprises the following steps: the device comprises a dot matrix laser transmitter, a dot matrix laser receiver and a vibration frequency sensor, wherein the electronic elements for monitoring are sequentially fixedly arranged on a specific mounting rack by bolts until the electronic elements are stable;

step two: the method comprises the following steps of monitoring a horizontal inclination angle of a dot matrix laser transmitter and a dot matrix laser receiver by using an electronic level gauge, and adjusting the horizontal positions and the heights of the dot matrix laser transmitter and the dot matrix laser receiver until the dot matrix laser transmitter and the dot matrix laser receiver are kept horizontal and the central points of the dot matrix laser transmitter and the dot matrix laser receiver are superposed under the same horizontal line;

step three: the electronic element is electrified to carry out an electrifying test, whether the lattice laser transmitter can normally transmit the lattice laser beam is checked, and whether the lattice laser receiver reacts to the laser beam is checked;

step four: the numerical control cutter is fixedly arranged at the bottom of the cutter rest, and the vibration frequency sensor is fixedly arranged at the central axis position of the top of the numerical control cutter;

step five: the numerical control cutter is driven by a driving device to rotate at a high speed, and simultaneously drives a vibration frequency sensor to synchronously rotate;

step six: the dot matrix laser emitter horizontally emits a plurality of dot matrix laser beams which are regularly arranged, the laser beams are reflected on the outer surface of the numerical control cutter, so that the laser beams form shadows on the surface of the dot matrix laser receiver, and the numerical control chip calculates the shadow areas acquired for multiple times, so that whether the numerical control cutter is abraded or not is monitored, and the abrasion degree is detected;

step seven: the vibration frequency sensor is driven by the numerical control cutter to rotate at a high speed, and the vibration frequency sensor is used for detecting the centrifugal vibration frequency of the numerical control cutter, so that the gravity center offset of the numerical control cutter is detected;

step eight: when the lattice laser receiver and the vibration frequency sensor detect that the cutter is abraded to a certain degree, the alarm is sent out an electric signal through a wire, after the alarm is electrified, an acousto-optic alarm is sent out, the driving device is controlled to be powered off, the device is stopped to operate, and data recording is carried out after the cutter is detached, so that detection is completed.

2. A method of monitoring wear of a numerically controlled tool as in claim 1, wherein: the lattice laser transmitter and the lattice laser receiver are kept relatively stable in the working process, and the mounting positions of the lattice laser transmitter and the lattice laser receiver are finely adjusted by using bolts and mounting threaded rods, so that laser beams can be accurately projected onto the surface of the lattice laser receiver.

3. A method of monitoring wear of a numerically controlled tool as in claim 1, wherein: the dot matrix laser transmitter is powered on and powered off for two to three times before monitoring, so that a laser source in the dot matrix laser transmitter can work completely and normally, the quantity of laser beams emitted by the dot matrix laser transmitter is complete, and the shadow shape formed by laser mapping is not lost.

4. A method of monitoring wear of a numerically controlled tool as in claim 1, wherein: the lattice laser receiver and the vibration frequency sensor are electrically connected with the same numerical control chip through wires, and the lattice laser receiver and the vibration frequency sensor can respectively transmit data and signals to the numerical control chip.

5. A method of monitoring wear of a numerically controlled tool as in claim 1, wherein: the numerical control cutter and the inner central axis of the vibration frequency sensor must be overlapped, so that the center of gravity of the whole device is positioned at the center, and the vibration frequency monitoring when the numerical control cutter rotates is prevented from being influenced by the deviation during the assembly of the device.

6. A method of monitoring wear of a numerically controlled tool as in claim 1, wherein: the photosensitive resistors are arranged in the dot matrix laser receiver in an array mode, and the photosensitive resistors are irradiated by laser to adjust current transmitted in an internal circuit, so that the numerical control chip receives current signals.

7. A method of monitoring wear of a numerically controlled tool as in claim 1, wherein: the numerical control chip is electrically connected with an internal circuit of the electric drive equipment, and the dot matrix laser receiver and the vibration frequency sensor can respectively transmit electric signals to the numerical control chip, so that the numerical control chip controls the electric drive equipment to be turned on and turned off.

8. A method of monitoring wear of a numerically controlled tool as in claim 1, wherein: the utility model discloses a dot matrix laser emitter, including dot matrix laser emitter, light filter, laser beam, the inside equidistance of dot matrix laser emitter installs the array laser lamp, and the light filter is installed to one side of dot matrix laser emitter, filters the laser beam that each group laser lamp sent through the light filter, makes the laser beam be the horizontal direction and jets out.

Technical Field

The invention relates to the technical field of cutter monitoring, in particular to a method for monitoring abrasion of a numerical control cutter.

Background

Numerical control processing is one of the highest processing methods of fineness and controllability in the modern manufacturing industry, numerical control processing controls the cutter through program coding, the fineness of numerical control processing can be promoted, and the specification of the processed workpiece can be kept uniform, the difficulty of workpiece processing can be increased, the application range of mechanical processing is enlarged, in the numerical control processing, the numerical control cutter is an important guarantee for guaranteeing the effect of numerical control processing, the numerical control cutter is easy to abrade with workers when being polished and cut, the loss of a cutter head can occur, the precision and the processing effect of numerical control processing are influenced, potential safety hazards such as cutter collision can exist, therefore, the numerical control cutter needs to be regularly and finely monitored, and the use performance of the numerical control cutter is guaranteed.

Disclosure of Invention

The present invention is directed to a method for monitoring wear of a numerical control tool, so as to solve the problems set forth in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a monitoring method of numerical control cutter wearing and tearing, its construction flow has equipment to build → horizontal calibration → circular telegram test → assembly cutter → starting equipment → optical monitoring → vibration monitoring → completion monitoring, its characterized in that: comprises the following eight steps:

the method comprises the following steps: the device comprises a dot matrix laser transmitter, a dot matrix laser receiver and a vibration frequency sensor, wherein the electronic elements for monitoring are sequentially fixedly arranged on a specific mounting rack by bolts until the electronic elements are stable;

step two: the method comprises the following steps of monitoring a horizontal inclination angle of a dot matrix laser transmitter and a dot matrix laser receiver by using an electronic level gauge, and adjusting the horizontal positions and the heights of the dot matrix laser transmitter and the dot matrix laser receiver until the dot matrix laser transmitter and the dot matrix laser receiver are kept horizontal and the central points of the dot matrix laser transmitter and the dot matrix laser receiver are superposed under the same horizontal line;

step three: the electronic element is electrified to carry out an electrifying test, whether the lattice laser transmitter can normally transmit the lattice laser beam is checked, and whether the lattice laser receiver reacts to the laser beam is checked;

step four: the numerical control cutter is fixedly arranged at the bottom of the cutter rest, and the vibration frequency sensor is fixedly arranged at the central axis position of the top of the numerical control cutter;

step five: the numerical control cutter is driven by a driving device to rotate at a high speed, and simultaneously drives a vibration frequency sensor to synchronously rotate;

step six: the dot matrix laser emitter horizontally emits a plurality of dot matrix laser beams which are regularly arranged, the laser beams are reflected on the outer surface of the numerical control cutter, so that the laser beams form shadows on the surface of the dot matrix laser receiver, and the numerical control chip calculates the shadow areas acquired for multiple times, so that whether the numerical control cutter is abraded or not is monitored, and the abrasion degree is detected;

step seven: the vibration frequency sensor is driven by the numerical control cutter to rotate at a high speed, and the vibration frequency sensor is used for detecting the centrifugal vibration frequency of the numerical control cutter, so that the gravity center offset of the numerical control cutter is detected;

step eight: when the lattice laser receiver and the vibration frequency sensor detect that the cutter is abraded to a certain degree, the alarm is sent out an electric signal through a wire, after the alarm is electrified, an acousto-optic alarm is sent out, the driving device is controlled to be powered off, the device is stopped to operate, and data recording is carried out after the cutter is detached, so that detection is completed.

Furthermore, the dot matrix laser emitter and the dot matrix laser receiver keep relatively stable in the working process, and the mounting positions of the dot matrix laser emitter and the dot matrix laser receiver are finely adjusted by using bolts and mounting threaded rods, so that laser beams can be accurately projected onto the surface of the dot matrix laser receiver.

Furthermore, the dot matrix laser transmitter is powered on and powered off for two to three times before monitoring, so that a laser source in the dot matrix laser transmitter can work completely and normally, the quantity of laser beams emitted by the dot matrix laser transmitter is complete, and the shadow shape formed by laser mapping is not lost.

Furthermore, the lattice laser receiver and the vibration frequency sensor are electrically connected with the same numerical control chip through wires, and the lattice laser receiver and the vibration frequency sensor can respectively transmit data and signals to the numerical control chip.

Furthermore, the inner central axes of the numerical control cutter and the vibration frequency sensor must be overlapped, so that the center of gravity of the whole device is positioned at the center, and the vibration frequency monitoring when the numerical control cutter rotates is prevented from being influenced by the deviation during the assembly of the device.

Furthermore, the photosensitive resistors are arranged in the dot matrix laser receiver in an array mode, and the photosensitive resistors are irradiated by laser to adjust the current transmitted in the internal circuit, so that the numerical control chip receives the current signals.

Furthermore, the numerical control chip is electrically connected with an internal circuit of the electric drive equipment, and the dot matrix laser receiver and the vibration frequency sensor can respectively transmit electric signals to the numerical control chip, so that the numerical control chip controls the electric drive equipment to be turned on and turned off.

Furthermore, several groups of laser lamps are installed in the dot matrix laser transmitter at equal intervals, a light filter is installed on one side of the dot matrix laser transmitter, and laser beams emitted by each group of laser lamps are filtered through the light filter, so that the laser beams are emitted in the horizontal direction.

Compared with the prior art, the invention has the beneficial effects that: the monitoring method for the abrasion of the numerical control cutter can effectively measure the abrasion degree of the numerical control cutter, the abrasion position and the vibration amplitude during rotation accurately, the device can carry out multi-angle omnibearing non-damage detection on the numerical control cutter when detecting the numerical control cutter, no clamping fixed relation exists between the device and the numerical control cutter, and therefore the detection accuracy of the device can be improved, the use performance of the numerical control cutter can be conveniently evaluated by using detected data, the numerical control cutter with larger aging abrasion degree can be conveniently replaced, the precision and the processing effect in the numerical control processing process can be ensured, the safety of numerical control processing is improved, the detection cost of the numerical control cutter can be reduced, the device is simple and easy to operate in the detection process, the device is in a full-automatic detection state during detection, and errors caused by manual operation can be prevented.

Drawings

FIG. 1 is a schematic flow diagram of the present invention;

FIG. 2 is a schematic diagram of the monitoring principle of the dot matrix projection of the present invention.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1-2, the present invention provides an embodiment: the utility model provides a monitoring method of numerical control cutter wearing and tearing, its construction flow has equipment to build → horizontal calibration → circular telegram test → assembly cutter → starting equipment → optical monitoring → vibration monitoring → completion monitoring, its characterized in that: comprises the following eight steps:

the method comprises the following steps: the equipment comprises a dot matrix laser transmitter, a dot matrix laser receiver and a vibration frequency sensor, wherein an electronic element for monitoring is fixedly installed on a specific installation frame sequentially through bolts until the electronic element is kept stable, the electronic element is assembled by utilizing parts such as bolts, gaskets and the like and is reinforced, the installation stability of the electronic element is improved, the accuracy of the electronic element in detecting the numerical control cutter is ensured, the influence of vibration generated by the numerical control cutter in rotation on the stability of the dot matrix laser transmitter and the dot matrix laser receiver is prevented, and the device can stably detect the abrasion of the numerical control cutter through emitted dot matrix laser;

step two: the method comprises the steps that an electronic level gauge is used for monitoring horizontal inclination angles of a dot matrix laser transmitter and a dot matrix laser receiver, the horizontal positions and the heights of the dot matrix laser transmitter and the dot matrix laser receiver are adjusted until the dot matrix laser transmitter and the dot matrix laser receiver are kept horizontal, the central points of the dot matrix laser transmitter and the dot matrix laser receiver are overlapped under the same horizontal line, the dot matrix laser transmitter and the dot matrix laser receiver are calibrated, dot matrix laser beams emitted by the dot matrix laser transmitter can irradiate the dot matrix laser receiver at an angle vertical to the outer surface of the dot matrix laser receiver, shadows consistent with the appearance of a numerical control cutter are formed on the dot matrix laser receiver through laser shielded by the numerical control cutter, and the abrasion degree of the numerical control cutter can be detected through the shape and the area size of the shadows and the parameter comparison of the numerical control cutter;

step three: the method comprises the steps that an electronic element is electrified to be tested, whether a dot matrix laser transmitter can normally emit dot matrix laser beams is checked, whether a dot matrix laser receiver reacts to the laser beams is checked, the dot matrix laser transmitter needs to emit a plurality of groups of laser beams in an array mode to the dot matrix laser receiver, in order to guarantee the laser detection effect, multiple times of electrification testing needs to be conducted on luminous points in the dot matrix laser transmitter, and the device is guaranteed to be accurate when a numerical control cutter is detected;

step four: the numerical control cutter is fixedly arranged at the bottom of the cutter frame, the vibration frequency sensor is fixedly arranged at the central axis position of the top of the numerical control cutter, the vibration frequency sensor and the cutter are assembled and fixed in a superposed mode, the gravity center of the vibration frequency sensor and the gravity center of the numerical control cutter are positioned on the same vertical line, the numerical control cutter is used for driving the vibration frequency sensor to synchronously rotate, the vibration frequency and amplitude of the vibration frequency sensor can be detected, and further the vibration frequency sensor can precisely measure the gravity center offset and the shaking amplitude generated when the numerical control cutter rotates, so that the weight distribution condition of the numerical control cutter can be detected, and the abrasion condition of the numerical control cutter can be detected;

step five: the numerical control cutter is driven by a driving device to rotate at a high speed, and simultaneously drives a vibration frequency sensor to synchronously rotate, the numerical control cutter is driven to rotate at high speed by fixedly connecting electric driving equipment such as a motor and the like with the numerical control cutter, further driving the vibration frequency sensor at the top to synchronously rotate, so that the vibration frequency sensor detects the vibration frequency of the numerical control cutter during rotation, and the data is transmitted to the numerical control chip through a wire for analysis and comparison, the numerical control chip is used for comparison with the data in the database, when the deviation range of the data detected by the device and the original factory parameters recorded in the database exceeds the set value, the driving device is controlled to power off and shut down, therefore, the abrasion detection of the numerical control cutter is completed, no manual operation is needed in the detection process, the error in the manual intervention detection process is prevented, and the detection effect and the accuracy of the device are improved;

step six: the lattice laser transmitter horizontally transmits a plurality of regularly arranged lattice laser beams, the laser beams are reflected on the outer surface of the numerical control cutter to form shadows on the surface of the lattice laser receiver, the numerical control chip calculates the shadow area acquired for many times, so that whether the numerical control cutter is abraded or not is detected, the abrasion degree is detected, the lattice laser receiver irradiates the surface of the numerical control cutter and the lattice laser receiver, the shadows of the numerical control cutter are projected on the surface of the lattice laser receiver, the positions of each group of laser beams and the shadows are detected through a photoresistor in the lattice laser receiver, the abrasion degree and the abrasion position of the cutter are detected by the lattice laser receiver, and the detection data are transmitted to the numerical control chip through a wire to be analyzed and compared;

step seven: the vibration frequency sensor is driven by the numerical control cutter to rotate at a high speed, the vibration frequency sensor is used for detecting the centrifugal vibration frequency of the numerical control cutter, so that the gravity center offset of the numerical control cutter is detected, when the numerical control cutter is abraded, the numerical control cutter is easy to shake in a small range due to unstable gravity center during rotation, and the vibration frequency of the numerical control cutter is accurately measured by the vibration frequency sensor, so that the abrasion condition of the numerical control cutter can be obtained;

step eight: when the lattice laser receiver and the vibration frequency sensor detect that the cutter has certain abrasion, the alarm is given an electric signal through a wire, the alarm gives an acousto-optic alarm after being electrified and controls the driving equipment to power off and shut down so as to stop the device, the cutter is disassembled and then data is recorded to finish detection, the numerical control chip is controlled by the electric signal transmitted by the dot matrix laser receiver or the vibration frequency sensor so as to stop the numerical control machine, and the detected wear data is recorded, so that the later-period workers can conveniently compare and screen the detected data, thereby judging whether the numerical control cutter is worn or not and evaluating the use performance of the numerical control cutter so as to be convenient for workers to judge whether the numerical control cutter is usable or not according to actual detection data, therefore, the numerical control cutter which is excessively worn can be properly replaced, and the machining effect of the numerical control machining cutter is ensured.

Further, dot matrix laser emitter and dot matrix laser receiver keep relatively stable in the course of the work, the mode that uses bolt and installation threaded rod finely tunes dot matrix laser emitter and dot matrix laser receiver's mounted position, the surface of projecting to dot matrix laser receiver that makes the laser beam can be accurate, the projection direction of laser beam need keep perpendicular with dot matrix laser receiver's surface, thereby the size and the shape that make the shadow part of dot matrix laser receiver surface formation are unanimous with numerical control cutter, and then the accuracy of optical detection part has been promoted.

Furthermore, the dot matrix laser transmitter is powered on and powered off two to three times before detection, so that a laser source inside the dot matrix laser transmitter can work normally completely, the quantity of laser beams emitted by the dot matrix laser transmitter is complete, the shadow shape formed by laser mapping is free from loss, before the dot matrix laser transmitter is used for optical detection, the optical detection part needs to be tested for many times in order to ensure the accuracy of detection work, the electronic element is ensured to be kept intact, and the numerical control cutter can be precisely detected.

Further, dot matrix laser receiver and vibration frequency sensor pass through wire and same numerical control chip electric connection, dot matrix laser receiver and vibration frequency sensor can transmit data and signal to the numerical control chip respectively, the numerical control chip pass through the wire respectively with dot matrix laser receiver and vibration frequency sensor electric connection, through taking notes dot matrix laser receiver and vibration frequency sensor transmission's data, and compare with the former factory parameter of numerical control cutter in the database, when the data that detect surpassed the error range of settlement, shut down through numerical control chip controlling means, and then draw the conclusion whether numerical control cutter wore and torn.

Furthermore, the inner central axes of the numerical control cutter and the vibration frequency sensor must be overlapped, so that the center of gravity of the whole device is located at the center, the vibration frequency monitoring when the numerical control cutter rotates is prevented from being influenced by the deviation when the device is assembled, the vibration frequency sensor needs to be matched with the numerical control cutter to synchronously rotate at a high speed when detecting the numerical control cutter, in order to prevent the vibration frequency sensor from being influenced by the deviation when being installed, the accuracy of vibration detection is improved, the vibration frequency sensor and the numerical control cutter need to be fixedly installed on the same central axis, and therefore the influence of the vibration frequency sensor on the vibration frequency is eliminated.

Further, the photoresistor is installed to the inside array of dot matrix laser receiver, and the photoresistor receives laser irradiation to adjust the electric current of transmission in the internal circuit to make the numerical control chip receive the current signal, the photoresistor adjusts the resistance size after laser irradiation, thereby the electric current size of transmission in the control internal circuit utilizes the change of electric current to transmit the signal of telecommunication, thereby to numerical control chip transmission instruction.

Furthermore, numerical control chip and electric drive equipment inner circuit electric connection, dot matrix laser receiver and vibration frequency sensor can transmit the signal of telecommunication to the numerical control chip respectively, make numerical control chip control electric drive equipment carry out the switching on and shutting down, and the numerical control chip receives the signal of telecommunication instruction of dot matrix laser receiver and vibration frequency sensor transmission, can cut off drive equipment's power supply to make the numerical control cutter stall, and then accomplish and detect.

Furthermore, array laser lamp is installed to dot matrix laser emitter's inside equidistance, and the light filter is installed to dot matrix laser emitter's one side, filters the laser beam that each group laser lamp sent through the light filter, makes the laser beam be the horizontal direction and jets out, utilizes the light filter to make the laser beam can array and jet out with same direction, and then makes dot matrix laser receiver's receiving terminal form with the complete unanimous shadow in numerical control cutter entity's cross-section, and then can carry out the precision detection to the wearing and tearing of numerical control cutter.

Example 2

Firstly, a principle of lattice laser detection:

the lattice laser is used as a kind of optical detection mode which is widely applied at present, and the working process mainly comprises lattice laser emission, lattice projection, photoelectric signal conversion, information processing and the like.

1. Principle of lattice laser detection

1.1 Generation of lattice lasers

Because light propagates with the form of straight line in same kind of medium, therefore when light receives the object to shelter from in the route of propagation, can form the shady and dark face at the opposite side of object to produce the shadow, in order to promote the measuring accuracy of laser to numerical control cutter, need use the pointolite to launch the less multiunit laser beam of light diameter after circular telegram, thereby produce array laser, make every group laser beam shine numerical control cutter with the same direction, thereby carry out wearing and tearing detection to numerical control cutter.

1.2 dot matrix laser detection effect

Because each group of laser beams in the lattice laser irradiates the numerical control cutter in a relatively parallel direction, the area and the shape of a shadow formed after the lattice laser irradiates the numerical control cutter are completely consistent with the longitudinal section of a numerical control cutter body, and the laser beams irradiating the lattice laser receiver generate variable resistance reaction with a photoresistor inside the lattice laser receiver, so that the current of a circuit connected with each group of photoresistors is changed, the lattice laser receiver performs data recording on the area and the shape of the shadow, and the recorded data is transmitted to a numerical control chip through a lead for processing.

2. Calibration of dot matrix laser detection

2.1, when utilizing dot matrix laser to carry out accurate measurement to numerical control cutter, in order to prevent that the deviation from appearing in the position and the direction of shining of laser beam, need when the installation to calibrate dot matrix laser transmitter and dot matrix laser receiver, its main objective is: the emergent angle of the lattice laser is kept vertical to the photoresistor, so that the generated shadow is kept consistent with the size and the cross section shape of the numerical control cutter entity, the detection effect of the laser is further improved, and the evaluation precision of the numerical control cutter is increased.

2.2, the detection process of the lattice laser can be divided into the following four types.

1, calibrating equipment; 2, dot matrix projection; 3, photoelectric conversion; and 4, information processing.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.