CN112722820B - Positioning, light treatment and processing method of light treatment workpiece - Google Patents
Positioning, light treatment and processing method of light treatment workpiece Download PDFInfo
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- CN112722820B CN112722820B CN202011506392.0A CN202011506392A CN112722820B CN 112722820 B CN112722820 B CN 112722820B CN 202011506392 A CN202011506392 A CN 202011506392A CN 112722820 B CN112722820 B CN 112722820B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/905—Control arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/20—Auxiliary treatments, e.g. aerating, heating, humidifying, deaerating, cooling, de-watering or drying, during loading or unloading; Loading or unloading in a fluid medium other than air
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Abstract
The invention discloses a positioning, optical processing and processing method of optical processing workpieces. The invention is suitable for positioning, optical treatment and processing of small-size optical treatment workpieces, and has the advantages of less flow, convenient operation, avoidance of error problem caused by transportation and the like.
Description
Technical Field
The invention relates to a workpiece optical processing technology, in particular to a positioning, optical processing and processing method for a small-size optical processing workpiece.
Background
The optical processing is that the equipment cuts, coats or optically reflects a given shape on a workpiece according to a specific shape by using a light beam, and the optical processing workpiece is the workpiece processed by the light beam. The workpiece is placed on the equipment to be positioned, the position of the workpiece relative to the equipment is determined, and the light beam is convenient to automatically align to the point position needing light processing. The common positioning includes manually observing the position of a workpiece, and positioning by using a measuring instrument, such as a two-dimensional measuring instrument.
At present, for some large-sized workpieces to be processed by light, such as cover plates, specifically, common mobile phone glass cover plates, vehicle-mounted glass cover plates, etc., the sizes are large, before the light processing device performs light processing on the cover plates, if a CCD (charge coupled device) camera on the light processing device directly captures the cover plates, the contour of the whole cover plates cannot be completely and accurately captured. The grabbing is understood as obtaining the parameters of the grabbed object by using the visual detection function of the CCD.
The positioning of the existing large-size cover plate is generally realized by adopting the following steps: 1. firstly, placing the large-size cover plates on a measuring platform (such as a two-dimensional platform), arranging mark points for being grabbed by a CCD camera on the measuring platform, and measuring by a measuring instrument (such as a measuring instrument) to obtain the relative position relation between each large-size cover plate and the mark points (mark points); 2. then moving the large-size cover plate and the measuring platform deck and placing the large-size cover plate and the measuring platform deck on a working table of the optical processing equipment, and transmitting the relative position relation data between the cover plate and the mark points measured in the step 1 to a controller of the optical processing equipment; 3. the CCD camera of the optical processing equipment grabs the positions of the mark points (the mark points can be completely grabbed by the CCD camera due to small size) and transmits the positions to the controller, and the controller calculates the positions of the large-size cover plates on the working table of the optical processing equipment (namely the positions of each large-size cover plate relative to the optical processing equipment) according to the positions of the mark points and the relative position relationship between the cover plates and the mark points measured in the step 1.
However, for some light processing workpieces with relatively small sizes, such as glass cover plates of smart watches, if the positioning method is used for positioning, the operation is not very convenient due to more processes, and the implementation process is more complicated and the precision is lower due to the carrying and multiple calculation processes, particularly, errors are easily generated during the carrying.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a positioning, optical processing and machining method for an optical processing workpiece.
In order to achieve the purpose, the invention provides the following technical scheme: a method of positioning a photo-processed workpiece, comprising: the method comprises the steps that a carrying platform carrying a plurality of light processing workpieces is placed on a working table top of light processing equipment, positioning equipment on the light processing equipment directly grabs each light processing workpiece one by one, and parameters of each light processing workpiece are obtained, wherein the parameters comprise the positions of the light processing workpieces on the working table top.
Preferably, after the positioning device finishes grabbing the current optical processing workpiece, the positioning device searches for the next optical processing workpiece according to the search rule, and moves to the grabbing position of the next optical processing workpiece to grab the next optical processing workpiece while searching.
Preferably, the search rules comprise a difference factor between the light-processed workpiece and the stage and/or an attribute of the light-processed workpiece, the difference factor comprising a color difference, the attribute comprising an edge of the light-processed workpiece.
Preferably, the distance between two adjacent light treatment workpieces is greater than or equal to 2.5mm.
Preferably, the light treatment workpiece is located within a gripping range of the positioning apparatus.
Preferably, the size of the light-treated workpiece is within 40mm x 40 mm.
Preferably, the positioning apparatus is a CCD camera or an assembly of a CCD camera and a light processing lens assembled on the CCD camera.
The invention also provides another technical scheme: a photo-processing method of photo-processing a workpiece, the photo-processing method comprising: and placing a plurality of light processing workpieces on a working table of light processing equipment, wherein the light processing equipment gradually positions part of the light processing workpieces and then performs light processing until all the light processing workpieces are subjected to light processing.
Preferably, the light treatment equipment positions each light treatment workpiece step by step and then performs light treatment.
Preferably, after the positioning device of the optical processing device positions a part of the optical processing workpieces, the optical processing lens of the optical processing device performs optical processing on the part of the optical processing workpieces, and while performing the optical processing, the positioning device of the optical processing device positions at least a part of the remaining optical processing workpieces, and the process is repeated until all the optical processing workpieces are subjected to the optical processing.
Preferably, the positioning device and the light processing lens of the light processing device are driven by two independent driving members respectively.
Preferably, the light treatment process comprises:
s10, positioning each light processing workpiece along a light processing direction, and then performing light processing until a row of light processing workpieces in the light processing direction are subjected to light processing;
s20, moving the workpiece to the next row of optical processing workpieces along the stepping direction perpendicular to the optical processing direction, returning the workpiece to the home position along the direction opposite to the optical processing direction, and performing optical processing on the next row of optical processing workpieces in the step S10;
and S30, repeating the steps S10 and S20 until all the light processing workpieces are subjected to light processing.
Preferably, in S10, the positioning device is used to position the light processing workpiece, and the light processing lens is used to perform light processing on the light processing workpiece, and the positioning device is located in front of the light processing lens in the light processing direction.
The invention also discloses another technical scheme: a method of processing a light treated workpiece, comprising: firstly, coating a photoreaction material on a light treatment workpiece, then placing the light treatment workpiece into light treatment equipment, and positioning and carrying out light treatment on the light treatment workpiece in the light treatment equipment.
Preferably, the light processing workpiece is carried on a carrier, and the light reaction material is coated on the light processing workpiece and the carrier simultaneously.
The invention has the beneficial effects that:
1. the invention is suitable for positioning and optical processing of small-size optical processing workpieces, can position the optical processing workpieces by directly grabbing the optical processing workpieces, and can adjust optical processing parameters according to other parameters (such as size and the like) of the grabbed optical processing workpieces.
2. The invention adopts a mode of positioning each light processing workpiece first and then performing light processing, and because the positioning data of each light processing workpiece is independent, accumulated errors can be avoided, the positioning and light processing precision of each object is improved, and the positioned light processing workpieces to be processed are subjected to light processing while being positioned, so that the positioning and light processing efficiency can be improved.
3. According to the invention, the distance between two adjacent light processing workpieces is reasonably set, so that the problem of mistaken grabbing caused by confusion of a plurality of objects by a CCD camera is avoided.
4. The invention directly puts the workpiece into the light processing equipment after coating the polishing reaction material, and carries out positioning and light processing in the light processing equipment, thereby saving additional positioning equipment, reducing the production cost and reducing the size error caused by transportation between equipment.
Drawings
FIG. 1 is a schematic diagram of an optical processing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a configuration of a light processing workpiece on a stage;
FIG. 3 is a schematic view of a CCD camera capturing light to process a workpiece;
FIG. 4 is a schematic view of a CCD camera and a light processing lens for capturing light to process a workpiece;
FIG. 5 is a schematic flow chart of a light treatment method of the present invention;
FIG. 6 is a schematic flow chart of one embodiment of the optical processing of the present invention;
FIG. 7 is a schematic diagram of the light processing process of FIG. 6;
FIG. 8 is a schematic structural diagram of an optical processing apparatus according to another embodiment of the present invention;
FIG. 9 is a schematic flow chart of another embodiment of the optical processing of the present invention;
FIG. 10 is a schematic diagram of the light processing process of FIG. 9;
FIG. 11 is a schematic diagram of another embodiment of a light processing method of the present invention;
FIG. 12 is a schematic view of the structure of a light processing device according to still another embodiment of the present invention;
fig. 13 is a schematic diagram of an image acquired by the CCD camera 31.
Reference numerals:
1. table top, 2, light processing lens, 3, positioning device, 31, CCD camera, 311, center of CCD camera, 32, light processing lens, 4, stage, 5, light processing workpiece, 51, center of light processing workpiece, 6, beam mount, x, stepping direction, y, light processing direction.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the present invention.
Referring to fig. 1 to 4, a positioning method for optically processing workpieces according to the present invention includes placing a stage 4 carrying a plurality of optically processed workpieces 5 on a table top 1 of an optical processing apparatus, and directly grabbing each optically processed workpiece 5 by a positioning apparatus 3 on the optical processing apparatus to obtain parameters of each optically processed workpiece 5.
In this embodiment, as shown in fig. 2 to fig. 3, the light processing workpiece 5 may be implemented as a small-sized cover plate, such as a glass cover plate of a common smart watch, the size of the cover plate is small, for example, within 40mm × 40mm, and the outline is generally square or circular, and the cover plates are located within a graspable range of the positioning device 3 of the light processing device, so that the cover plates can be completely and accurately grasped by the positioning device 3 of the light processing device. Of course, in other embodiments, the light treatment workpiece 5 is not limited to a cover plate and the dimensions and profile shapes are not limited to those described herein, as long as objects having dimensions within the graspable range of the positioning apparatus 3 of the light treatment apparatus are applicable to the present invention.
The positioning device 3 on the optical processing device may be implemented by a CCD camera 31 or an assembly of the CCD camera 31 and an optical processing lens 32 assembled on the CCD camera 31, the CCD camera 31 has a field of view, which is a range that the CCD camera 31 can capture, the captured optical processing workpiece 5 of the present invention can be fully covered by the field of view of the CCD camera 31, so that the object can be directly and completely captured by the CCD camera 31 to obtain corresponding parameters of the object, the parameters including the position of the optical processing workpiece 5 on the work table 1, the contour of the optical processing workpiece 5, the size (such as side length, round angle, etc.), and the like. The present invention mainly acquires the position of the light processing workpiece 5 on the work table 1, thereby performing precise light processing on the light processing workpiece 5 according to the position. Of course, since the size of each of the light processing workpieces 5 has an error, the light processing parameters may be adjusted in accordance with the size of each of the light processing workpieces 5. The light processing lens 32 can enlarge the field of view of the CCD camera 31, so that the range of the size of the light processing workpiece 5 that can be positioned according to the present invention can be enlarged, and the application range of the positioning method according to the present invention can be enlarged.
Taking the center position coordinates of the light processing workpiece 5 as an example, as shown in fig. 13, for the image obtained by the CCD camera 31, after obtaining the image, a processor (not shown) connected to the CCD camera 31 can obtain the relative positions of the center 51 of the light processing workpiece 5 (such as a glass cover plate) and the center 311 of the CCD camera by a corresponding image processing method, because the center 311 of the CCD camera can obtain the center position of the CCD camera in real time during the movement of the positioning device 3, the center position coordinates of the light processing workpiece 5 are calculated according to the center position coordinates of the CCD camera and the relative position relationship between the center 51 of the light processing workpiece 5 and the center 311 of the CCD camera. The rotation angle, profile, etc. of the light-processing workpiece 5 can also be obtained by a similar principle.
Preferably, in order to avoid the CCD camera 31 from confusing a plurality of light processing workpieces 5 and causing the problem of erroneous grasping, the present invention sets the distance between two adjacent light processing workpieces 5 to be 2.5mm or more.
After the positioning device 3 of the optical processing device finishes grabbing one optical processing workpiece 5, the positioning device 3 starts to search for the next optical processing workpiece 5, and determines the grabbing position of the next optical processing workpiece 5, during the search, the optical processing device searches according to a corresponding search rule, wherein the search rule comprises a difference factor between the optical processing workpiece 5 and the carrier 4 and/or an attribute of the optical processing workpiece 5, the difference factor comprises a color difference between the optical processing workpiece 5 and the carrier 4, generally, the color difference between the optical processing workpiece 5 and the carrier 4 is large, for example, the optical processing workpiece 5 is black, and the carrier 4 is transparent; the properties of the light-treated workpiece 5 include the edges of the light-treated workpiece. Specifically, the light processing apparatus searches for a captured black color, and if it is found, captures the edge of the black light processing workpiece to determine the grasping position of the light processing workpiece 5, for example, between two adjacent light processing workpieces 5. The optical processing apparatus searches for and determines the gripping position of the optical processing workpiece 5 while moving to the gripping position so that the next optical processing workpiece 5 to be gripped is located within the gripping range of the positioning apparatus 3, thereby performing accurate gripping of the next optical processing workpiece 5. In practice, the search rule and the grasping position of the present invention are not limited to those defined above, and the present invention is applicable as long as the search rule enables the optical processing apparatus to determine the grasping position of the next optical processing workpiece 5, and as long as the grasping position enables the next optical processing workpiece 5 to be within the grasping range of the positioning apparatus 3.
The invention grabs the light processing workpieces 5 one by one, thereby enabling the positioning data of each light processing workpiece 5 to be independent and avoiding accumulative errors.
In this embodiment, as shown in fig. 6 and 9, the plurality of light processing workpieces 5 are preferably distributed on the stage 4 in a matrix form, that is, arranged in M rows and N columns, where M and N are both natural numbers greater than or equal to 1. Of course, the arrangement of the light processing workpiece 5 on the carrier 4 in the present invention is not limited.
Compared with the positioning process of the large-size optical processing workpiece, the positioning method has the advantages of less flow, convenience in operation, avoidance of error problem caused by transportation and the like because the transportation and calculation processes are omitted, and further improves the positioning accuracy.
Referring to fig. 1 and 5, a method for photo-processing a workpiece according to the present invention includes: a plurality of light processing workpieces 5 are placed on a worktable surface 1 of light processing equipment, and the light processing equipment gradually positions the light processing workpieces 5 and then carries out light processing until all the light processing workpieces 5 are subjected to light processing.
Wherein, a plurality of light processing workpieces 5 can be preferably loaded on a carrier 4, and then the carrier 4 is placed on the working table surface 1 of the light processing equipment; of course, the light source can be directly placed on the working table 1 of the light processing equipment according to a certain sequence. The placing sequence can be distributed according to the matrix form, namely M rows and N columns are arranged, and M and N are natural numbers which are more than or equal to 1.
In one embodiment, after the positioning device 3 of the optical processing device has first positioned a part of the optical processing workpiece 5 on the stage 4, the optical processing lens 2 of the optical processing device performs optical processing on the part of the optical processing workpiece 5, and while performing the optical processing, the positioning device 3 of the optical processing device positions at least a part of the remaining optical processing workpiece 5, and so on, until all the optical processing workpieces 5 are subjected to optical processing.
Referring to fig. 11, the positioning apparatus 3 of the optical processing apparatus first starts to position the optical processing workpieces 5, and the optical processing lens 2 is at a standby position, and after the positioning apparatus 3 positions a predetermined number of optical processing workpieces 5, three rows of optical processing workpieces 5 on the carrier 4 are positioned, and the optical processing workpieces are stepped in the row direction after being positioned one row each time. In the third row, the optical processing lens 2 is still in the standby position, after the device 3 to be positioned is positioned to the fourth row of optical processing workpieces 5, and after a running space is reserved for the optical processing lens 2, the optical processing lens 2 starts optical processing work, and the positioned three rows of optical processing workpieces 5 are subjected to optical processing one by one. While the light processing lens 2 is performing light processing, the positioning apparatus 3 of the light processing apparatus may continue to perform light processing on the next rows (i.e., the next rows from the fourth row) of light processing workpieces 5. The light processing method of the invention can improve the light processing efficiency of the light processing equipment by positioning the light processing workpiece 5 at the same time of light processing.
In this embodiment, as shown in fig. 12, the positioning device 3 and the optical processing lens 2 of the optical processing device are driven by two independent driving members, respectively, and it is possible to realize independent or simultaneous positioning and optical processing of the optical processing workpiece 5.
In another alternative embodiment, the light treatment apparatus positions each light treatment workpiece 5 step by step before performing light treatment. That is, the optical processing apparatus positions each optical processing workpiece 5 and then performs optical processing on the optical processing workpiece 5, and then positions and then performs optical processing on the next optical processing workpiece 5 after the optical processing is finished, and the process is repeated.
In the above two embodiments, the process of positioning each photo-processing workpiece 5 by the photo-processing apparatus may adopt the process described in the above positioning method, and the description of the process is omitted here, and reference may be made to the above description. Of course, other positioning methods that can obtain the positioning data of each of the light-processed workpieces 5 are also applicable to the present invention.
In another alternative embodiment, as shown in fig. 1, 6 and 7, one of the implementations of the light processing process of the light processing device includes the following steps:
and S10, positioning each light processing workpiece along the light processing direction and then carrying out light processing until a row of light processing workpieces in the light processing direction are subjected to light processing.
Specifically, in this embodiment, the optical processing apparatus includes a table top 1, an optical processing lens 2, and a positioning apparatus 3, where the table top 1 is used to carry a stage 4, and the stage 4 is used to carry a plurality of optical processing workpieces 5 to be optically processed, and in this embodiment, the stage 4 is a general stage, that is, any stage capable of carrying the optical processing workpieces 5 is suitable for the present invention, and the optical processing workpieces 5 are arranged on the stage 4 in M rows and N columns, where the column direction is the optical processing direction or the opposite direction to the optical processing direction, and the row direction is a step direction, where the optical processing direction is the y direction shown in the figure, and the step direction is the x direction shown in the figure.
The positioning device 3 and the optical processing lens 2 are arranged above the carrier 4 through a beam frame 6 and are respectively used for positioning and optically processing the optical processing workpiece 5 on the carrier 4, and the beam frame 6 can move back and forth along the optical processing direction and the direction opposite to the optical processing direction, so that the positioning device 3 and the optical processing lens 2 on the beam frame are driven to move back and forth along the optical processing direction and the direction opposite to the optical processing direction. In practice, the positioning device 3 may be disposed on one side of the light processing lens 2 in the light processing direction, specifically, in front of the light processing lens 2, or two positioning devices 3 may be disposed on both sides of the light processing lens 2 in the light processing direction, that is, one positioning device 3 is disposed in front of and behind the light processing lens 2 in the light processing direction. The positioning device 3 may be implemented by a CCD camera 31 or an assembly of the CCD camera 31 and a light processing lens 32 assembled on the CCD camera 31, in this embodiment, the positioning device 3 is implemented by a CCD camera 31 or an assembly of the CCD camera 31 and a light processing lens 32 assembled on the CCD camera 31, and the positioning device 3 is disposed in front of the light processing lens 2 in the light processing direction.
In S10, the positioning device 3 and the optical processing lens 2 are driven by the beam mount 6 to first position and then perform optical processing on each optical processing workpiece 5 in a row of optical processing workpieces along the optical processing direction until the row of optical processing workpieces in the optical processing direction is optically processed. In the embodiment, the positioning device 3 is located in front of the optical processing lens 2 in the optical processing direction, so that when moving along the optical processing direction, the positioning device 3 and the optical processing lens 2 can position and optically process one optical processing workpiece 5 in sequence. The positioning method is a flow of the positioning method for optically processing the workpiece 5, and is not described herein again.
S20, moving the workpiece to the next row of optical processing workpieces along the stepping direction perpendicular to the optical processing direction, and returning the workpiece to the home position along the direction opposite to the optical processing direction, and proceeding to the step S10 for optical processing the next row of optical processing workpieces.
Specifically, after one row of the light processing workpieces is optically processed, the next row of the light processing workpieces is continuously optically processed, that is, the positioning device 3 and the light processing lens 2 are moved in a direction approaching the next row of the light processing workpieces along a stepping direction perpendicular to the light processing direction. Since the positioning device 3 is provided only on one side of the optical processing lens 2 in the present embodiment, in the opposite direction to the optical processing direction, since the positioning device 3 is located behind the optical processing lens 2 in the opposite direction to the optical processing direction due to the relative position provided between the positioning device 3 and the optical processing lens 2, that is, in the opposite direction to the optical processing direction, the optical processing workpieces in the row cannot be positioned first and then subjected to the optical processing, and therefore, in the present embodiment, after the positioning device 3 and the optical processing lens 2 move to the next row, they are returned in the opposite direction to the optical processing direction, and after returning, the positioning and the optical processing are continued for each optical processing workpiece 5 in the row in the optical processing direction in accordance with step S10.
And S30, repeating the steps S10 and S20 until all the light processing workpieces are subjected to light processing.
In another alternative embodiment, as shown in fig. 8 to 10, another implementation of the light processing process of the light processing device includes the following steps:
s100, positioning each light processing workpiece along the light processing direction and then carrying out light processing until finishing the light processing of a row of light processing workpieces in the light processing direction.
Specifically, in this embodiment, the optical processing apparatus includes a table top 1, an optical processing lens 2, and a positioning apparatus 3, where the table top 1 is used to carry a stage 4, and the stage 4 is used to carry a plurality of optical processing workpieces 5 to be optically processed, and in this embodiment, the stage 4 is a general stage, that is, any stage capable of carrying the optical processing workpieces 5 is suitable for the present invention, and the optical processing workpieces 5 are arranged on the stage 4 in M rows and N columns, where the column direction is the optical processing direction or the opposite direction to the optical processing direction, and the row direction is a step direction, where the optical processing direction is the y direction shown in the figure, and the step direction is the x direction shown in the figure.
The positioning device 3 and the optical processing lens 2 are arranged above the carrier 4 through a beam frame 6 and are respectively used for positioning and optically processing the optical processing workpiece 5 on the carrier 4, and the beam frame 6 can move back and forth along the optical processing direction and the direction opposite to the optical processing direction, so that the positioning device 3 and the optical processing lens 2 on the beam frame are driven to move back and forth along the optical processing direction and the direction opposite to the optical processing direction. In practice, a positioning device 3 is arranged on each side of the light processing lens 2 in the light processing direction, i.e. a positioning device 3 is arranged in front of and behind the light processing lens 2 in the light processing direction. The positioning device 3 may be implemented by a CCD camera 31 or an assembly of the CCD camera 31 and a light processing lens 32 assembled on the CCD camera 31, in this embodiment, the positioning device 3 is implemented by a CCD camera 31 or an assembly of the CCD camera 31 and a light processing lens 32 assembled on the CCD camera 31, and a positioning device 3 is respectively disposed in front of and behind the light processing lens 2 in the light processing direction.
In S100, the positioning device 3 and the optical processing lens 2 are driven by the beam mount 6 to first position and then perform optical processing on each optical processing workpiece 5 in a row of optical processing workpieces along the optical processing direction until the row of optical processing workpieces in the optical processing direction is optically processed. In this embodiment, since the positioning devices 3 are respectively disposed in front of and behind the light processing lens 2 in the light processing direction, when moving in the light processing direction, the positioning devices 3 and the light processing lens 2 can sequentially position and light-process one light processing workpiece 5. The positioning method is a positioning method flow for processing the workpiece by using the light, and is not described herein again. And in this step, the positioning device 3 located in front of the light processing lens 2 in the light processing direction operates, and the positioning device 3 on the other side does not operate.
And S200, moving to the next row of light processing workpieces along the stepping direction vertical to the light processing direction, positioning each light processing workpiece in the next row along the direction opposite to the light processing direction, and then performing light processing until the next row of light processing workpieces are subjected to light processing.
Specifically, after one row of the light processing workpieces is light-processed, the next row of the light processing workpieces continues to be light-processed, that is, the positioning device 3 and the light processing lens 2 move in a direction approaching the next row of the light processing workpieces in a stepping direction perpendicular to the light processing direction. Since the positioning device 3 is disposed in front of and behind the optical processing lens 2 in the optical processing direction in this embodiment, the positioning device 3 is disposed in front of the optical processing lens 2 in the opposite direction to the optical processing direction, and thus the optical processing workpieces 5 in the row can be positioned first and then optically processed, so that in this embodiment, after the positioning device 3 and the optical processing lens 2 are moved to the next row, each optical processing workpiece 5 in the row is positioned first and then optically processed in the optical processing direction in step S100 directly in the direction opposite to the optical processing direction. In this step, the positioning device 3 located behind the optical processing lens 2 in the optical processing direction is operated, and the positioning device 3 on the other side is not operated.
And S300, continuously moving to the next row of light processing workpieces along the stepping direction, and repeating the steps S100-S300 until all the light processing workpieces are subjected to light processing.
The invention discloses a processing method of a light processing workpiece, which comprises the following steps: firstly, coating a photoreaction material on a light treatment workpiece, then placing the light treatment workpiece into light treatment equipment, and positioning and carrying out light treatment on the light treatment workpiece in the light treatment equipment.
The light processing workpiece can be carried on a carrying table, and the light processing workpiece and the carrying table are coated with a light reaction material at the same time. The positioning method of the workpiece to be optically processed in the optical processing apparatus, i.e. the position of the workpiece to be optically processed relative to the optical processing apparatus, can be, but is not limited to, the positioning method described above. The processing method of the invention directly puts the workpiece into the light processing equipment after coating the glazing reaction material, and carries out positioning and light processing in the light processing equipment, thereby saving additional positioning equipment, reducing the production cost and reducing the size error caused by transportation among equipment. Where the additional positioning device comprises a two-dimensional measuring device or the like, the additional may be understood to be two or more tables different for the table on which the positioning is performed and the table on which the optical processing device is performed.
The positioning, light processing and machining method of the light processing workpiece disclosed by the invention is suitable for positioning, light processing and machining of small-size light processing workpieces, and has the advantages of less flow, convenience in operation, avoidance of error problems caused by carrying and the like.
Therefore, the scope of the invention should not be limited to the disclosure of the embodiments, but includes various alternatives and modifications that do not depart from the spirit of the invention and are intended to be covered by the claims of this patent application.
Claims (14)
1. A positioning method for optically processing a workpiece, the positioning method comprising: placing a carrier bearing a plurality of optical processing workpieces on a workbench top of optical processing equipment, moving a positioning device on the optical processing equipment to directly grab each optical processing workpiece one by one to obtain parameters of each optical processing workpiece, wherein the parameters comprise the position of the optical processing workpiece on the workbench top, the optical processing workpieces and the carrier in the carrier bearing the plurality of optical processing workpieces are simultaneously coated with optical reaction materials, the positioning device determines the next grabbed optical processing workpiece based on a search rule, after the positioning device grabs the current optical processing workpiece, the positioning device searches the next optical processing workpiece according to the search rule, and moves to the grab position of the next optical processing workpiece to grab the next optical processing workpiece during searching, the search rule comprises a difference factor between the optical processing workpiece and the carrier and/or the attribute of the optical processing workpiece, and the position of the optical processing workpiece on the workbench top is determined by the following method:
acquiring an image of a photo-processing workpiece captured by a positioning device;
performing image processing on the image to obtain the relative position of the center of the light processing workpiece and the center of the positioning equipment;
and determining the central position coordinates of the light processing workpiece according to the central position coordinates of the positioning equipment and the relative position relationship between the center of the light processing workpiece and the center of the positioning equipment.
2. A method as claimed in claim 1, wherein the differential factor comprises a colour differential and the attribute comprises an edge of the optically processed workpiece.
3. The method of claim 1, wherein the distance between two adjacent optically processed workpieces is greater than or equal to 2.5mm.
4. A positioning method for a light processing workpiece as recited in claim 1, wherein said light processing workpiece is positioned within a grip range of said positioning apparatus.
5. A method according to claim 1 or 4, wherein the size of the workpiece is within 40mm x 40 mm.
6. A method according to claim 1, wherein the positioning device is a CCD camera or a combination of a CCD camera and a light processing lens assembled to the CCD camera.
7. A light processing method for light processing a workpiece, the light processing method comprising: placing a plurality of light processing workpieces on a worktable of light processing equipment, wherein the light processing equipment positions part of the light processing workpieces step by step and then performs light processing until all the light processing workpieces are subjected to light processing, and the positioning comprises the positioning method of any one of the claims 1 to 6.
8. A method as claimed in claim 7, wherein the photo-processing apparatus positions each photo-processed workpiece step by step before photo-processing the workpiece.
9. The method of claim 7, wherein after the positioning device of the optical processing apparatus positions a portion of the optical processing workpiece, the optical processing lens of the optical processing apparatus performs optical processing on the portion of the optical processing workpiece, and while performing the optical processing, the positioning device of the optical processing apparatus positions at least a portion of the remaining optical processing workpiece, and so on until all the optical processing workpieces are optically processed.
10. A method as claimed in claim 9, wherein the positioning device and the light processing lens of the light processing device are driven by two separate drives.
11. A method as claimed in claim 8, wherein said optical treatment process comprises:
s10, positioning each light processing workpiece along a light processing direction and then performing light processing until a row of light processing workpieces in the light processing direction are processed;
s20, moving the workpiece to the next row of optical processing workpieces along the stepping direction perpendicular to the optical processing direction, returning the workpiece to the home position along the direction opposite to the optical processing direction, and performing optical processing on the next row of optical processing workpieces in the step S10;
and S30, repeating the steps S10 and S20 until all the light processing workpieces are subjected to light processing.
12. The method of claim 11, wherein in S10, the positioning device is used to position the workpiece to be processed, and the light processing lens is used to perform the light processing on the workpiece to be processed, and the positioning device is located in front of the light processing lens in the light processing direction.
13. A machining method for optically treating a workpiece, comprising: coating a photoreactive material on a workpiece to be optically treated, and then placing the workpiece to be optically treated in an optical treatment apparatus in which the workpiece to be optically treated is positioned and optically treated, wherein the positioning comprises the positioning method according to any one of claims 1 to 6.
14. The machining method of claim 13, wherein the workpiece is carried on a stage, and the workpiece and the stage are coated with the photo-reactive material simultaneously.
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| JP2006136923A (en) * | 2004-11-12 | 2006-06-01 | Hitachi Via Mechanics Ltd | Laser beam machine and laser beam machining method |
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| JP2011237348A (en) * | 2010-05-12 | 2011-11-24 | Disco Abrasive Syst Ltd | Height position measuring device for workpiece held by chuck table and laser processing apparatus |
| WO2017127573A1 (en) * | 2016-01-19 | 2017-07-27 | Nlight, Inc. | Method of processing calibration data in 3d laser scanner systems |
| CN210533283U (en) * | 2019-08-30 | 2020-05-15 | 钧迪智能装备科技(苏州)有限公司 | Positioning detection device |
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