CN114623780A - Detection device and online detection method for three-dimensional reconstruction of tool nose - Google Patents
Detection device and online detection method for three-dimensional reconstruction of tool nose Download PDFInfo
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- CN114623780A CN114623780A CN202210096531.XA CN202210096531A CN114623780A CN 114623780 A CN114623780 A CN 114623780A CN 202210096531 A CN202210096531 A CN 202210096531A CN 114623780 A CN114623780 A CN 114623780A
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- dimensional reconstruction
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- clamping piece
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
Abstract
The invention discloses a detection device and an online detection method for three-dimensional reconstruction of a tool nose, wherein the detection device comprises a clamping piece and a bracket for supporting the clamping piece; the clamping part is provided with a clamping part for fixing the shooting device; the clamping piece is provided with a rotating fulcrum, and the clamping piece can rotate around the rotating fulcrum to adjust the inclination angle of the clamping piece; the clamping piece is also provided with a linear motion mechanism which controls the clamping part to move linearly along the axis of the shooting device fixed on the clamping part; and a driving device for driving the linear motion mechanism is also arranged. The inclination angle of the clamping piece is adjusted by arranging the rotating fulcrum, and the shooting device can linearly move along the inclination angle to shoot the sequence images of the cutter point by arranging the linear motion mechanism and the driving device, so that the sequence images of the cutter point can be shot on line, and the three-dimensional reconstruction of the cutter point can be realized on line.
Description
Technical Field
The invention relates to the technical field of cutter detection, in particular to a detection device and an online detection method for three-dimensional reconstruction of a cutter tip.
Background
With the rapid development of the manufacturing industry, the dependence on the machine tool is stronger and stronger, the accuracy of the machine tool is higher and higher, and the requirement on machining the required cutter is higher and higher. When a machine tool is used for machining, the surface quality and precision of a product are not up to standard due to the fact that a milling cutter is broken edge, secondary reworking or even direct abandonment is needed, and unnecessary loss and expenditure are brought.
The tool tip is a main grinding and damage part in the machining process of the milling cutter, and grinding and damage detection of three-dimensional reconstruction of the tool tip is the most direct and effective method for detecting the service life of the tool. Because the sequence images of the tool nose shot at an oblique angle with the cutter shaft need to be acquired when the tool nose is reconstructed three-dimensionally, the tool on the machine tool cannot be inclined, the existing image shooting device cannot shoot directly, and the tool needs to be taken down and installed on the shooting device for shooting. Therefore, the cutter tip image cannot be shot on line, the online rapid detection cannot be realized, and the processing efficiency is influenced.
Thus, there is still a need for improvement and development of the prior art.
Disclosure of Invention
The invention mainly aims to provide a detection device and an online detection method for three-dimensional reconstruction of a tool nose, and aims to solve the problems that in the prior art, sequential images of the tool nose cannot be shot online, and three-dimensional reconstruction of the tool nose cannot be realized online.
In order to achieve the above object, the present invention provides a detection apparatus for three-dimensional reconstruction of a cutting edge, wherein the detection apparatus comprises:
the clamping device comprises a clamping piece and a bracket for supporting the clamping piece;
the clamping part is used for fixing the shooting device;
the clamping piece is provided with a rotating fulcrum, and the clamping piece can rotate around the rotating fulcrum to adjust the inclination angle of the clamping piece;
the clamping piece is also provided with a linear motion mechanism which controls the clamping part to move linearly along the axis of the shooting device fixed on the clamping part;
and the clamping piece is also provided with a driving device for driving the linear motion mechanism.
Optionally, a fixing seat for fixing the auxiliary light source in front of the shooting device is further arranged on the clamping piece.
Optionally, the fixing seat includes a base and a top seat for fixing the auxiliary light source, the top seat is connected to the base, the top seat is disposed in front of the base, and the base is connected to the clamping portion.
Optionally, a manual screw and a first knob are arranged between the top seat and the base, the top seat is mounted on the manual screw, and the first knob controls the manual screw to rotate so that the top seat moves linearly.
Optionally, a gear and a linear rack which are coupled to each other are arranged on the top seat, and a second knob which controls the gear is further arranged, and the second knob controls the gear to be in rotating engagement with the linear rack so that the top seat can move linearly.
Optionally, the bracket is provided with two flanges which are opposite to each other, a rotating shaft is arranged between the flanges, the clamping piece is fixed on the rotating shaft, a connecting point of the clamping piece and the rotating shaft forms a rotating fulcrum, and the rotating shaft is further provided with a rotating knob for controlling the rotating of the rotating shaft.
Optionally, the linear motion mechanism is a ball screw, the clamping portion is connected to a nut of the ball screw, and a stepping motor connected to the ball screw is further provided, and the stepping motor is the driving device.
Optionally, the support is provided with a vertical rod and a horizontal rod, the clamping piece is connected with the horizontal rod, the horizontal rod can vertically move on the vertical rod, and the horizontal rod is further provided with a locking bolt capable of preventing the horizontal rod from vertically moving.
Optionally, a control part is arranged on the clamping piece, the control part is provided with the linear motion mechanism and the rotating fulcrum, and a connecting rod is arranged between the clamping part and the control part.
The detection device for three-dimensional reconstruction of the tool nose comprises a clamping piece and a bracket for supporting the clamping piece; the clamping part is provided with a clamping part for fixing the shooting device; the clamping piece is provided with a rotating fulcrum, and the clamping piece can rotate around the rotating fulcrum to adjust the inclination angle of the clamping piece; the clamping piece is also provided with a linear motion mechanism which controls the clamping part to move linearly along the axis of the shooting device fixed on the clamping part; and a driving device for driving the linear motion mechanism is also arranged. Compared with the prior art, the scheme of the invention adjusts the inclination angle of the clamping piece by arranging the rotating fulcrum, and enables the shooting device to move linearly along the inclination angle to shoot the sequence images of the cutter tip by arranging the linear motion mechanism and the driving device, thereby realizing the on-line shooting of the sequence images of the cutter tip and the on-line three-dimensional reconstruction of the cutter tip.
In order to achieve the above object, a second aspect of the present invention further provides an online detection method for three-dimensional reconstruction of a tool tip, the online detection method comprising:
based on a machine tool coordinate system, obtaining coordinate data of the tool nose according to the tool size data;
acquiring coordinate data and an inclination angle of the shooting device based on the coordinate data of the tool nose;
obtaining the moving step length of the shooting device according to the precision of the shooting device based on the coordinate data of the shooting device and the tool nose coordinate data;
based on the moving step length, controlling the shooting device to move along the inclination angle to obtain a tool nose sequence image;
and obtaining a three-dimensional reconstruction result of the tool nose according to a focusing method based on the tool nose sequence image.
Therefore, the online detection method for three-dimensional reconstruction of the tool nose in the scheme of the invention controls the shooting device to move along the inclination angle for shooting by determining the coordinate, the inclination angle and the moving step length of the shooting device, thereby realizing online shooting of the sequence image of the tool nose and online three-dimensional reconstruction of the tool nose.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a first schematic view of a detection device for three-dimensional reconstruction of a tool tip according to an embodiment of the present invention;
FIG. 2 is a second schematic view of a detection device for three-dimensional reconstruction of a tool tip according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of an online detection method for three-dimensional reconstruction of a tool tip provided by an embodiment of the invention;
fig. 4 is a schematic block diagram of an internal structure of an intelligent terminal according to an embodiment of the present invention.
The reference numbers illustrate:
10. the microscope comprises a support, 11, flanges, 13, a rotating knob, 15, a cross rod, 16, a vertical rod, 17, a locking bolt, 18, a bottom plate, 20, a clamping piece, 21, a clamping part, 23, a linear motion mechanism, 24, a stepping motor, 25, a ball screw, 26, a control part, 27, a connecting rod, 28, the flanges, 30, an auxiliary light source, 31, a top seat, 32, a base, 33, a manual screw rod, 34, a rough adjusting knob, 35, a linear rack, 36, a fine adjusting knob, 40, a microscope, 50 and a machine tool guide rail.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when …" or "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted depending on the context to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings of 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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
With the rapid development of the manufacturing industry, the dependence on the machine tool is stronger and stronger, the accuracy of the machine tool is higher and higher, and the requirement on machining the required cutter is higher and higher. When a machine tool is used for machining, the surface quality and precision of a product are not up to standard due to the fact that a milling cutter is broken edge, secondary reworking or even direct abandonment is needed, and unnecessary loss and expenditure are brought.
The tool tip is a main grinding and damage part in the machining process of the milling cutter, and grinding and damage detection of three-dimensional reconstruction of the tool tip is the most direct and effective method for detecting the service life of the tool. When the cutter point is reconstructed three-dimensionally, a cutter point sequence image shot at an oblique angle with a cutter shaft needs to be obtained, however, a cutter on a machine tool cannot be inclined, the existing image shooting device cannot shoot directly, and the cutter needs to be taken down and installed on the shooting device for shooting. Therefore, the cutter tip image cannot be shot on line, the online rapid detection cannot be realized, and the processing efficiency is influenced.
According to the scheme of the invention, the inclination angle of the clamping piece is adjusted by arranging the rotating fulcrum, and the shooting device can linearly move along the inclination angle to shoot the sequence images of the cutter tip by arranging the linear motion mechanism and the driving device, so that the sequence images of the cutter tip are shot on line, and the three-dimensional reconstruction of the cutter tip is realized on line.
Exemplary device
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a detection apparatus for three-dimensional reconstruction of a tool tip, where the detection apparatus mainly includes two parts: a clamping member 20 and a bracket 10 supporting the clamping member 20.
The support 10 may be fixed to a machine tool guide 50, and the support 10 may be moved on the machine tool guide 50 to a position obliquely below the tool to be detected. It should be noted that the specific shape of the bracket 10 is not limited, and the bracket 10 may also be fixed on an external workbench beside the machine tool, and the movement of the external workbench drives the bracket 10 to move to the oblique lower side of the tool to be detected.
Specifically, the support 10 in this embodiment is fixed on the machine tool guide rail 50 through the bottom plate 18, the support 10 is provided with a vertical rod 16 and a cross rod 15, the vertical rod 16 is fixed on the bottom plate 18, one end of the cross rod 15 is provided with a through hole, and the cross rod 15 is sleeved on the vertical rod 16 through the through hole and can move up and down along the vertical rod 16 to change the height of the cross rod 15. As the height of the cross bar 15 is changed, the height of the clamping member 20 fixed to the cross bar 15 is changed. The cross bar 15 is further provided with a locking bolt 17, and after the height of the cross bar 15 is adjusted to a proper position, the locking bolt 17 is tightly pressed on the vertical bar 16, so that the position of the cross bar 15 is locked, and the up-and-down sliding of the cross bar 15 is prevented.
Wherein, a clamping part 21 for fixing the shooting device is arranged on the clamping piece 20. In the three-dimensional blade edge reconstruction, since the imaging device is generally the microscope 40, the clamping portion 21 is preferably in a circular hoop shape, and the microscope 40 is fixed to the clamping portion 21 by clamping the clamping portion 21 to the outer periphery of the microscope 40. Of course, the holding portion 21 may have other shapes such as a rectangular shape, and a through hole for passing the microscope is provided at the center thereof so as to clamp the microscope 40.
In the three-dimensional reconstruction of the blade edge, the image of the blade edge needs to be obliquely captured, and therefore, the imaging device needs to be set at a certain inclination angle. The specific value of the tilt angle varies depending on the type of tool and the dimensional data of the tool. In order to incline the shooting device, the invention provides a rotating fulcrum on the clamping piece 20, and the rotating fulcrum is connected on the bracket 10, so that the clamping piece 20 can rotate around the rotating fulcrum to adjust the inclination angle of the clamping piece 20, and the shooting device fixed on the clamping part 21 can adjust the inclination angle when the clamping piece 20 rotates.
Specifically, in this embodiment, the clamp 20 is attached to the crossbar 15 of the stand 10. Two opposite flanges 11 are arranged at the end part of a cross rod 15 of the bracket 10, a through hole is arranged at the center of each flange 11, a rotating shaft capable of rotating is arranged between the two through holes, a rotating knob 13 is fixedly connected to one end of the rotating shaft, and the rotating knob 13 can control the rotating shaft to rotate. The holding member 20 is correspondingly provided with a flange 28, the flange 28 is fixed on the rotating shaft, when the rotating shaft rotates, the holding member 20 is driven to rotate by taking the fixed point fixed on the rotating shaft as a rotating fulcrum, and the inclination angle of the holding member 20 is adjusted.
In order to shoot the sequence images of the knife tip to reconstruct the knife tip in three dimensions, the invention also arranges a linear motion mechanism 23 on the clamping piece 20, controls the clamping part 21 to move linearly through the linear motion mechanism 23, specifically, because the axis of the shooting device is at a certain inclination angle, the shooting device is fixed on the clamping part 21, and the clamping part 21 moves linearly along the axis of the shooting device. In order to drive the linear motion mechanism 23 to move automatically in a certain movement step, a drive device connected to the linear motion mechanism 23 is provided. The common linear motion mechanisms include: a crank block mechanism, a cam mechanism, a gear rack mechanism, a ball screw mechanism and the like.
Specifically, the present embodiment adopts the ball screw 25 as the linear motion mechanism 23, the clamping portion 21 is fixedly connected to the nut of the ball screw 25, the ball screw 25 is connected to the stepping motor 24, and the ball screw 25 is driven by the stepping motor 24, so as to drive the clamping portion 21 to move linearly. The clamping member 21 in this embodiment is provided with a control portion 26, and the linear motion mechanism 23 and the mechanism for adjusting the inclination angle are both provided on the control portion 26. A connecting rod 27 is provided between the clamping portion 21 and the control portion 26.
Further, in order to obtain a better shooting effect, the fixing seat for installing the auxiliary light source 30 is arranged on the clamping piece 20, the auxiliary light source 30 is fixed in front of the shooting device through the fixing seat, preferably, the axis of the auxiliary light source 30 is overlapped with the axis of the shooting device, and the detection device looks more beautiful.
Specifically, the fixing base in this embodiment includes a base 32 and a top base 31 for fixing the auxiliary light source, the top base 31 is located in front of the base 32 and connected to the base 32, and the base 32 is connected to the clamping portion 21. Through the auxiliary light source 30 in the place ahead, carry out the light filling to the tool bit region for the image of shooing is more clear.
Furthermore, in the present embodiment, in order to adjust the intensity of light emitted to the blade edge region, a manual screw 33 and a rough adjustment knob 34 are further provided between the top base 31 and the bottom base 32, the top base 31 is mounted on the manual screw 33, and when the manual screw 33 rotates, the top base 31 linearly reciprocates. The inching knob 34 is connected to the manual screw 33, and when the inching knob 34 is rotated, the manual screw 33 is rotated to drive the top base 31 to move linearly.
In addition to the coarse adjustment of the movement of the auxiliary light source 30, the present embodiment further provides a fine adjustment function of the movement of the auxiliary light source 30. Specifically, a gear and a linear rack 35 are coupled to the top seat 31, and a fine adjustment knob 36 is further provided to control the rotation of the gear, so that the top seat 31 moves linearly through the rotational engagement of the gear and the linear rack 35.
In summary, the detection device for three-dimensional reconstruction of the tool tip in the embodiment includes a clamping member and a support for supporting the clamping member; the clamping part is provided with a clamping part for fixing the shooting device; the clamping piece is provided with a rotating fulcrum, and the clamping piece can rotate around the rotating fulcrum to adjust the inclination angle of the clamping piece; the clamping piece is also provided with a linear motion mechanism which controls the clamping part to move linearly along the axis of the shooting device fixed on the clamping part; and the driving device is used for driving the linear motion mechanism. The device is used for shooting sequence images of the tool nose of the tool in a machine tool, then corresponding three-dimensional reconstruction is carried out on a tool nose abrasion area by using a focusing method, and finally a three-dimensional topography map of the tool abrasion area can be obtained, so that not only can the abrasion area of the tool be reproduced, but also the abrasion volume can be measured accurately. The method realizes the on-line shooting of the sequence images of the tool nose, the on-line three-dimensional reconstruction of the tool nose and the detection of the abrasion damage degree.
Exemplary method
The abrasion of the tool nose is the abrasion on the rear tool face of the arc of the tool nose and the adjacent auxiliary rear tool face, and is the continuation of the abrasion of the rear tool face on the tool. The wear rate is faster than that of the flank face due to poor heat dissipation conditions and stress concentration, and a series of small grooves with a pitch equal to the feed amount are sometimes formed in the minor flank face, which is called as groove wear. They are mainly due to the hardened layer and the cutting lines of the machined surface. In the case of a difficult-to-cut material having a large tendency to be hardened by cutting work, groove wear is most likely to occur. The abrasion of the tool nose has the greatest influence on the surface roughness and the processing precision of the workpiece.
As shown in fig. 3, an embodiment of the present invention further provides an online detection method for three-dimensional reconstruction of a tool tip, corresponding to a detection apparatus for three-dimensional reconstruction of a tool tip, specifically, the method includes the following steps:
step S100: based on a machine tool coordinate system, obtaining coordinate data of the tool nose according to the tool size data;
step S200: acquiring coordinate data and an inclination angle of the shooting device based on the coordinate data of the tool nose;
specifically, the coordinate data of the tool nose refers to the coordinate data of the tool nose in a machine tool coordinate system, the coordinate data of the tool shaft is obtained according to a PLC (programmable logic controller) of the machine tool, and then the coordinate data of the tool nose is obtained through calculation according to the size data of the tool. After obtaining the coordinate data of the cutting edge, the imaging device needs to be arranged obliquely below the cutting edge, and the coordinate data and the inclination angle of the imaging device are calculated according to the dimension data of the detection device on which the imaging device is mounted, such as the data of length, width and the like. Of course, the precision of the imaging device is different, and the external dimensions of the imaging device are also different, so that the external dimension data of the imaging device needs to be included in the calculation.
Step S300: obtaining the moving step length of the shooting device according to the precision of the shooting device based on the coordinate data of the shooting device and the tool nose coordinate data;
specifically, the initial distance between the shooting device and the knife edge is calculated according to the coordinate data of the shooting device and the knife edge coordinate data, the ending distance between the shooting device and the knife edge is calculated according to the precision of the shooting device, and the moving ending position of the shooting device is determined. And calculating the moving step length of the shooting device according to the initial distance, the ending distance and the number of the shot images of the sequence images.
Step S400: controlling the shooting device to move along the inclination angle based on the moving step length to obtain a tool nose sequence image;
specifically, according to the moving step length, the working parameters of the stepping motor are set to drive the ball screw to rotate so as to control the microscope to move along the set inclination angle, and the knife tip is shot while moving, so that the sequence image of the knife tip is obtained.
Step S500: and obtaining a three-dimensional reconstruction result of the tool nose according to a focusing method based on the tool nose sequence image.
Specifically, after a sequence image of the tool nose is obtained, the three-dimensional reconstruction of the tool nose is completed by adopting the existing focusing method, the volume of a reconstructed three-dimensional model is calculated, and the difference of the calculated volumes of the two models is analyzed according to the pre-calculated volume of the three-dimensional model when the tool nose is intact, so that the wear degree of the tool nose is analyzed.
In this embodiment, specific functions of the online detection method for three-dimensional reconstruction of the tool tip may refer to corresponding descriptions in the detection device for three-dimensional reconstruction of the tool tip, and are not described herein again.
Based on the above embodiment, the present invention further provides an intelligent terminal, and a schematic block diagram thereof may be as shown in fig. 4. The intelligent terminal comprises a processor, a memory, a network interface and a display screen which are connected through a system bus. Wherein, the processor of the intelligent terminal is used for providing calculation and control capability. The memory of the intelligent terminal comprises a nonvolatile storage medium and an internal memory. The nonvolatile storage medium stores an operating system and an online detection program for three-dimensional reconstruction of the blade edge. The internal storage provides an environment for the operation of an operating system in the nonvolatile storage medium and the operation of an online detection program for three-dimensional reconstruction of the cutter tip. The network interface of the intelligent terminal is used for being connected and communicated with an external terminal through a network. When being executed by a processor, the online detection program for three-dimensional reconstruction of the tool nose realizes the steps of the online detection method for three-dimensional reconstruction of the tool nose. The display screen of the intelligent terminal can be a liquid crystal display screen or an electronic ink display screen.
It will be understood by those skilled in the art that the block diagram shown in fig. 4 is only a block diagram of a part of the structure related to the solution of the present invention, and does not constitute a limitation to the intelligent terminal to which the solution of the present invention is applied, and a specific intelligent terminal may include more or less components than those shown in the figure, or combine some components, or have a different arrangement of components.
In one embodiment, a smart terminal is provided, where the smart terminal includes a memory, a processor, and an online detection program for three-dimensional reconstruction of a tool tip stored in the memory and executable on the processor, and the online detection program for three-dimensional reconstruction of a tool tip performs the following operations when executed by the processor:
based on a machine tool coordinate system, obtaining coordinate data of the tool nose according to the tool size data;
acquiring coordinate data and an inclination angle of the shooting device based on the coordinate data of the tool nose;
obtaining the moving step length of the shooting device according to the precision of the shooting device based on the coordinate data of the shooting device and the tool nose coordinate data;
based on the moving step length, controlling the shooting device to move along the inclination angle to obtain a tool nose sequence image;
and obtaining a three-dimensional reconstruction result of the tool nose according to a focusing method based on the tool nose sequence image.
The embodiment of the invention also provides a computer-readable storage medium, wherein the computer-readable storage medium is stored with an online detection program for three-dimensional reconstruction of the tool nose, and the online detection program for three-dimensional reconstruction of the tool nose is executed by a processor to realize the steps of any online detection method for three-dimensional reconstruction of the tool nose provided by the embodiment of the invention.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned functions may be distributed as different functional units and modules according to needs, that is, the internal structure of the apparatus may be divided into different functional units or modules to implement all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art would appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the above modules or units is only one logical division, and the actual implementation may be implemented by another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
The integrated modules/units described above, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments described above may be implemented. The computer program includes computer program code, and the computer program code may be in a source code form, an object code form, an executable file or some intermediate form. The computer readable medium may include: any entity or device capable of carrying the above-described computer program code, recording medium, U disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier signal, telecommunications signal, software distribution medium, and the like. It should be noted that the contents contained in the computer-readable storage medium can be increased or decreased as required by legislation and patent practice in the jurisdiction.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.
Claims (10)
1. Detection device that knife tip three-dimensional was rebuild, its characterized in that includes:
the clamping device comprises a clamping piece and a bracket for supporting the clamping piece;
the clamping part is provided with a clamping part for fixing the shooting device;
the clamping piece is provided with a rotating fulcrum, and the clamping piece can rotate around the rotating fulcrum to adjust the inclination angle of the clamping piece;
the clamping piece is also provided with a linear motion mechanism which controls the clamping part to move linearly along the axis of the shooting device fixed on the clamping part;
and the clamping piece is also provided with a driving device for driving the linear motion mechanism.
2. The detection apparatus for three-dimensional reconstruction of a nose according to claim 1, wherein the holder is further provided with a fixing seat for fixing the auxiliary light source in front of the camera.
3. The device for detecting the three-dimensional reconstruction of the nose according to claim 2, wherein the fixing base comprises a base and a top base for fixing the auxiliary light source, the top base is connected with the base, the top base is arranged in front of the base, and the base is connected with the clamping portion.
4. The detection device for three-dimensional reconstruction of the tool nose according to claim 3, wherein a manual screw and a first knob are arranged between the top seat and the base, the top seat is mounted on the manual screw, and the first knob controls the manual screw to rotate so as to enable the top seat to move linearly.
5. The detection device for three-dimensional reconstruction of the tool nose according to claim 4, wherein the top seat is provided with a gear and a linear rack which are coupled with each other, and a second knob for controlling the gear is further provided, and the second knob controls the gear to be in rotational engagement with the linear rack so as to enable the top seat to move linearly.
6. The device for detecting the three-dimensional reconstruction of the tool nose as claimed in claim 1, wherein the holder is provided with two opposite flanges, a rotating shaft is arranged between the flanges, the clamping member is fixed on the rotating shaft, the connecting point of the clamping member and the rotating shaft forms the rotating fulcrum, and a rotating knob for controlling the rotating shaft to rotate is further provided.
7. The device for detecting the three-dimensional reconstruction of the nose according to claim 1, wherein the linear motion mechanism is a ball screw, the holder is connected to a nut of the ball screw, and a stepping motor connected to the ball screw is provided, and the stepping motor is the driving device.
8. The detection device for three-dimensional reconstruction of the tool nose according to claim 1, wherein a vertical rod and a cross rod are arranged on the support, the clamping member is connected with the cross rod, the cross rod can vertically move on the vertical rod, and a locking bolt capable of preventing the cross rod from vertically moving is further arranged on the cross rod.
9. The device for detecting the three-dimensional reconstruction of the nose according to claim 1, wherein a control part is provided on the holder, the control part is provided with the linear motion mechanism and the rotation fulcrum, and a connecting rod is provided between the holder and the control part.
10. The online detection method for three-dimensional reconstruction of the tool nose is characterized by comprising the following steps:
based on a machine tool coordinate system, obtaining coordinate data of the tool nose according to the tool size data;
obtaining coordinate data and an inclination angle of the shooting device based on the coordinate data of the tool nose;
obtaining the moving step length of the shooting device according to the precision of the shooting device based on the coordinate data of the shooting device and the tool nose coordinate data;
based on the moving step length, controlling the shooting device to move along the inclination angle to obtain a tool nose sequence image;
and obtaining a three-dimensional reconstruction result of the tool nose according to a focusing method based on the tool nose sequence image.
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