CN113231963A - Double-deflection light beam shaping device for concave surface forming grinding wheel and machining method - Google Patents
Double-deflection light beam shaping device for concave surface forming grinding wheel and machining method Download PDFInfo
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- CN113231963A CN113231963A CN202110638316.3A CN202110638316A CN113231963A CN 113231963 A CN113231963 A CN 113231963A CN 202110638316 A CN202110638316 A CN 202110638316A CN 113231963 A CN113231963 A CN 113231963A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/12—Dressing tools; Holders therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
- B24B53/065—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels having other than straight profiles, e.g. crowned
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/20—Tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The application discloses double deflection beam shaping device and processing method for concave surface forming grinding wheel, the device includes: the device comprises a supporting base assembly, a vertical displacement motion platform and a deflection laser trimming device; the vertical displacement motion platform is fixed on the supporting base assembly and used for mounting a concave grinding wheel to be repaired; two laser trimming devices that deflect are fixed in the left and right sides of vertical displacement motion platform respectively, are provided with the laser head on the laser trimming device that deflects to the concave surface of treating the repairment concave surface emery wheel is maintained, and wherein, the laser trimming device that deflects includes: the laser horizontal adjusting device comprises a rotating disc direct-drive motor, a rotating disc and a laser horizontal adjusting assembly. Through the technical scheme in this application, utilize two bundles of laser beams that can deflect angle to carry out the concave surface to superhard abrasive material emery wheel and take shape the repairment, improve the shaping profile precision and the repairment efficiency that the concave surface was repairment.
Description
Technical Field
The application relates to the technical field of grinding wheel shaping, in particular to a double-deflection light beam shaping device for a concave surface forming grinding wheel and a double-deflection light beam shaping processing method for the concave surface forming grinding wheel.
Background
In recent years, with the increasing requirements for machining precision and machining quality, superabrasive grinding wheels are widely used for grinding, precision grinding and ultra-precision grinding of difficult-to-machine materials due to the characteristics of high hardness and good abrasion resistance. The concave surface superhard abrasive grinding wheel is a grinding wheel with a complex profile and is difficult to machine, the concave surface needs more materials to be machined, and the traditional machining method and the electric spark machining method have the defects of low machining efficiency, large loss of finishing tools, poor applicability, environmental pollution and the like, so the popularization and the application of the concave surface superhard abrasive grinding wheel are greatly limited.
The laser trimming method is used as a non-contact trimming technology and has the advantages of higher efficiency, wider adaptability, environmental friendliness, easiness in automatic control and the like. Compared with other processing modes, the method has incomparable advantages and has great potential to widen the application market of the concave-surface super-hard abrasive grinding wheel.
The prior laser trimming device mainly adopts a single-laser non-deflection trimming method, and as the depth of a groove processed by laser is deepened, because the laser is a focusing light in the laser trimming process, the radius of the spot at the unfocused laser position is larger than the radius of the focus point, resulting in a portion of the laser being blocked by the initial trim plane, the energy falling into the focusing plane is reduced to cause less energy of the laser beam, the material removing capability of the laser beam is reduced to cause surface material accumulation, the more the materials formed on the concave groove surface are accumulated along with the increase of the trimming depth, the more the materials are accumulated, the laser processing process of the concave groove of the concave super-hard abrasive grinding wheel is caused, a tapered profile which is not in accordance with the actual designed concave profile can be formed, the defects of poor finishing quality, low profile precision and the like are caused, and the forming of the concave surface of the super-hard abrasive grinding wheel and the application of a laser finishing technology are greatly influenced.
Disclosure of Invention
The purpose of this application lies in: two beams of laser beams with deflection angles are utilized to carry out concave surface forming and finishing on the concave surface superhard abrasive grinding wheel, and the forming profile precision and the finishing efficiency of concave surface finishing are improved.
The technical scheme of the first aspect of the application is as follows: there is provided a double deflection beam shaping device for a concave shaped grinding wheel, the device comprising: the device comprises a supporting base assembly, a vertical displacement motion platform and a deflection laser trimming device; the vertical displacement motion platform is fixed on the supporting base assembly and used for mounting a concave grinding wheel to be repaired; two laser trimming devices that deflect are fixed in the left and right sides of vertical displacement motion platform respectively, are provided with the laser head on the laser trimming device that deflects to the concave surface of treating the repairment concave surface emery wheel is maintained, and wherein, the laser trimming device that deflects includes: the laser horizontal adjusting device comprises a rotating disc direct drive motor, a rotating disc and a laser horizontal adjusting assembly; the rotating disc direct drive motor is arranged at the bottom of the deflection laser trimming device, a rotating disc is arranged on a rotating shaft of the rotating disc direct drive motor, and a laser horizontal adjusting assembly is arranged on the rotating disc; the laser horizontal adjustment subassembly includes laser horizontal adjustment platform, accommodate the lead screw, locating piece and fixed block, four installation screws of accommodate the lead screw lower extreme on the rolling disc are installed through threaded connection, four mounting holes of laser horizontal adjustment platform are passed to accommodate the lead screw's upper end, the mounting hole is just to the installation screw, still be provided with locating piece and fixed block on the accommodate the lead screw, the locating piece is located the below of laser horizontal adjustment platform, the fixed block is located the top of laser horizontal adjustment platform, the locating piece is used for adjusting the level of the laser head on the laser trimming device that deflects, so that the laser head of the left and right sides is in the horizontality that the level is the same.
In any of the above technical solutions, further, the deflection laser trimming apparatus further includes: a front and back displacement independent servo motor, a front and back displacement linear guide rail and a front and back displacement mobile station; the front and rear displacement moving platform is of a sleeve structure, the lower part of the front and rear displacement moving platform is fixed at the fixed end of the front and rear displacement linear guide rail in a threaded connection mode, and the front and rear displacement moving platform is used for fixing a laser head; the moving end of the front and rear displacement linear guide rail is connected with the front and rear displacement independent servo motor, and when the front and rear displacement independent servo motor operates, the front and rear displacement linear guide rail drives the laser head to move back and forth, so that the focal length of laser emitted by the laser head is adjusted, and the focal point is located on the concave surface of the concave surface grinding wheel to be modified.
Among any above-mentioned technical scheme, furtherly, displacement linear guide's both sides are provided with a plurality of fine setting screw holes around, and the laser trimming device that deflects still includes: a laser center adjusting block; the four laser center adjusting blocks are arranged on the laser horizontal adjusting platform, fine adjusting screw rods are arranged at the centers of the laser center adjusting blocks and are inserted into the fine adjusting screw holes, and when the fine adjusting screw rods rotate, the front and rear displacement linear guide rails are pulled to move, so that laser emitted by the laser heads is located on the horizontal symmetrical shaft of the rotary disc.
In any one of the above technical solutions, further, a horizontal moving device is disposed below the deflection laser trimming device, and the horizontal moving device includes: installing a flange plate, a horizontal displacement motion platform and a horizontal displacement independent servo motor; the mounting flange plate is provided with a threaded hole and is fixed below the rotating disc direct drive motor in a threaded connection mode; the horizontal displacement motion platform is arranged below the mounting flange plate, a horizontal linear guide rail is arranged in the horizontal displacement motion platform, the horizontal displacement motion platform is connected to a horizontal displacement independent servo motor, and when the horizontal displacement independent servo motor operates, the horizontal displacement motion platform drives the deflection laser trimming device to move along the horizontal direction so that laser emitted by the laser head moves along the axial direction of the concave grinding wheel to be trimmed.
Among the above-mentioned any one technical scheme, further, the below of horizontal displacement motion platform is provided with first locating pin hole, supports the base subassembly and includes: a machining mechanism fixing table; the processing mechanism fixing platform is arranged above the supporting base assembly, and the central line of the processing mechanism fixing platform along the length direction is mutually vertical to the central line of the vertical displacement moving platform along the height direction; the processing mechanism fixing platform is provided with two parallel horizontal terraces along the width direction, the horizontal terraces are provided with second positioning pin holes, and the second positioning pin holes are matched with the first positioning pin holes so that the horizontal displacement motion platforms on the left side and the right side are attached to the horizontal terraces.
In any one of the above technical solutions, further, the supporting base assembly includes: the workbench is a vertical movement mechanism fixing table; the workbench is used as a bottom plate for supporting the base assembly, a groove is formed in the workbench, and the vertical displacement motion table is arranged in the groove; the vertical movement mechanism fixing platform is arranged behind the groove, the installation plane of the vertical movement mechanism fixing platform is perpendicular to the horizontal step platform, and the vertical movement mechanism fixing platform is used for fixing the vertical displacement movement platform.
Among any one of the above-mentioned technical scheme, further, be provided with perpendicular linear guide in the vertical displacement motion platform, the vertical displacement motion platform still includes: the electric spindle, the vertical displacement independent servo motor, the spindle support flange plate component and the grinding wheel component are arranged on the main shaft; the vertical displacement independent servo motor is arranged above the vertical displacement motion platform and is used for dragging the vertical linear guide rail to move; the main shaft supporting flange plate assembly comprises a main shaft supporting flange plate and a supporting and installing flange plate which are connected through screws, the supporting and installing flange plate is installed on the vertical linear guide rail and is of an L-shaped vertical structure, an electric main shaft is fixedly installed on the supporting and installing flange plate, and the main shaft supporting flange plate assembly is used for driving the electric main shaft to move in the vertical direction; the grinding wheel component is arranged at the front end of the electric spindle and used for fixing a concave grinding wheel to be repaired.
In any one of the above-mentioned technical scheme, further, the top of electricity main shaft is provided with fixed screw, and grinding wheel assembly includes: a grinding wheel flange and a fixing bolt; the grinding wheel flange is sleeved on the electric main shaft and used for fixing a concave grinding wheel to be repaired; the fixing bolt is connected to the fixing screw hole and used for fixing the grinding wheel flange on the electric spindle.
The technical scheme of the second aspect of the application is as follows: the processing method for dressing the concave grinding wheel by using the double-deflection beam shaping device for the concave forming grinding wheel in the technical scheme of the first aspect comprises the following steps: step 1, adjusting the deflection laser trimming devices on the left side and the right side to enable lasers emitted by laser heads on the deflection laser trimming devices on the two sides to be in a horizontal state with the same horizontal height; step 2, adjusting the first height of the vertical displacement motion platform to enable the edge of the concave surface grinding wheel to be modified, which is arranged on the vertical displacement motion platform, to be in contact with laser emitted by a laser head; step 3, adjusting a horizontal displacement motion platform arranged below the deflection laser trimming device, and determining the horizontal processing position of the laser emitted by the laser head on the concave grinding wheel to be trimmed; step 4, adjusting the second height of the vertical displacement motion platform, and determining the cutting depth of the laser emitted by the laser head on the concave grinding wheel to be modified; step 5, adjusting a rotating disc of the deflection laser trimming device to enable included angles between laser heads mounted on the rotating disc on the left side and the right side and an axial center line of the concave surface grinding wheel to be trimmed to be opposite; and 6, carrying out laser light-focusing operation on the laser head, and carrying out concave surface finishing on the concave surface grinding wheel to be finished according to the horizontal processing position and the cutting depth.
In any of the above technical solutions, further, the method further includes: and 7, judging whether the laser is in the focus position or not according to the intensity of the laser emitted by the laser head on the grinding wheel material, and if not, adjusting a front-back displacement moving table on the deflection laser trimming device to enable the laser to be in the focus position.
In any of the above technical solutions, further, the adjusting of the deflected laser trimming devices on the left and right sides in step 1 includes horizontal adjustment of a single laser head, and the process includes:
firstly, fixing a laser marking plate vertical to a horizontal symmetry axis of a rotating disc, engraving a cross on the laser marking plate, and respectively moving the laser marking plate back and forth horizontally by using a laser front and back displacement moving platform and a laser horizontal adjusting platform so that the center of a laser red light focus emitted by a laser head is positioned at the center of the cross;
and then, the laser head is moved back and forth by using a front and back displacement moving platform, the position of the positioning block is adjusted according to the change of the laser on the cross, the center of the laser spot is adjusted to be positioned at the center of the cross again, and the adjustment is repeated to level the laser.
In any one of the above technical solutions, further, the adjusting of the deflection laser trimming devices on the left and right sides in step 1 includes adjusting the laser emitted by the laser head to be located on the central axis of the rotating disk:
firstly, respectively fixing two laser marking plates which are parallel and vertical to the central axis of the rotating disc;
and then, rotating the rotating disc to a zero-degree position, marking a mark A on the laser marking plate by using laser emitted by the laser head, then rotating the rotating disc by 180 degrees, marking a mark B on the other laser marking card, measuring the verticality between the two marks A and B and the laser marking plate, adjusting the left and right positions of the laser head by adjusting a fine adjustment screw of a laser center adjusting block, and repeatedly marking until the connecting line of the two marks is vertical to the laser marking plate.
The beneficial effect of this application is:
according to the technical scheme, two laser beams with deflection angles are adopted to carry out concave surface shaping on the superhard grinding material, so that materials which cannot be removed due to laser shielding can be effectively removed, the inclination can be effectively reduced, and the shape precision is improved; meanwhile, the dressing efficiency of the grinding wheel with the concave surface to be dressed can be effectively improved. The concrete expression is as follows:
1. the two laser beams can be kept horizontal by utilizing the horizontal adjusting component and the same height of the two laser beams is ensured; the laser beam can be adjusted to the horizontal symmetry axis of the rotating disc by utilizing the center adjusting block, so that good symmetry of laser emitted by the laser head is ensured, and the grinding wheel dressing precision is improved.
2. The laser beam is deflected by utilizing the accurate rotation of the rotating disc at different angles to form a double-deflection laser system, so that the material residual accumulation caused by the fact that the laser beam is shielded by the surface of the grinding wheel is avoided, and inclined planes formed on two sides of a groove of the grinding wheel under the condition that the processing depth is deepened can be effectively reduced by using the deflection of double lasers.
3. Through the mode that uses two bundles of laser deflection processing emery wheels surfaces, avoided laser to be sheltered from by too much and lead to energy loss, can effectively improve the efficiency of repairing for the shaping of emery wheel.
Drawings
The advantages of the above and/or additional aspects of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a dual deflection beam shaping device for a concave shaped grinding wheel according to one embodiment of the present application;
FIG. 4 is a schematic diagram of a deflected laser trimming device according to one embodiment of the present application;
FIG. 2 is a schematic view of a support base assembly according to one embodiment of the present application;
FIG. 3 is a schematic view of a vertical displacement motion stage according to one embodiment of the present application;
FIG. 5 is a schematic flow diagram of a method of double deflection beam shaping machining for a concave shaped grinding wheel according to one embodiment of the present application;
FIG. 6 is a schematic view of laser head adjustment according to one embodiment of the present application;
FIG. 7 is a schematic illustration of laser head deflection according to one embodiment of the present application;
FIG. 8 is a comparative illustration of concave dressing of a concave superabrasive wheel according to an embodiment of the present application.
Wherein, 1-supporting base component, 101-workbench, 102-vertical motion mechanism fixing platform, 103-processing mechanism fixing platform, 2-vertical displacement motion platform, 3-vertical displacement independent servo motor, 4-spindle supporting flange plate component, 401-spindle supporting flange plate, 402-supporting mounting flange plate, 5-electric spindle, 6-grinding wheel component, 601-grinding wheel flange, 602-concave surface grinding wheel to be repaired, 603-fixing bolt, 7-laser head, 8-front and back displacement independent servo motor, 9-front and back displacement moving platform, 901-front and back displacement linear guide rail, 10-laser center adjusting block, 11-laser horizontal adjusting component, 1101-laser horizontal adjusting platform, 1102-adjusting screw rod, 1103-positioning block, 1104-fixed block, 12-rotating disc, 13-rotating disc direct drive motor, 14-mounting flange plate, 15-horizontal displacement motion platform, and 16-horizontal displacement independent servo motor.
Detailed Description
In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
The first embodiment is as follows:
as shown in fig. 1, the present embodiment provides a double-deflection beam shaping apparatus for a concave-shaped grinding wheel, the apparatus comprising: the device comprises a supporting base assembly 1, a vertical displacement motion platform 2 and a deflection laser trimming device; establishing an xyz three-system coordinate axis, setting the direction of an x axis as a horizontal direction, the direction of a y axis as a vertical direction, and the direction of a z axis as a front-back direction. The vertical displacement motion stage 2 is used to adjust the height of the concave grinding wheel 602 to be modified thereon to adjust the depth of cut.
The deflected laser trimming devices are respectively arranged at the left side and the right side of the vertical displacement motion platform 2, lasers are arranged on the deflected laser trimming devices, and the double deflected beams of the concave surface of the concave grinding wheel 602 to be trimmed are shaped by adjusting the deflection angle of the lasers on the deflected laser trimming devices.
The concave grinding wheel to be dressed 602 in this embodiment is a superabrasive grinding wheel.
In this embodiment, the support base assembly 1 includes: a table 101, a vertical movement mechanism fixing table 102; the workbench 101 serves as a bottom plate for supporting the base assembly 1, a groove is formed in the workbench 101, and the vertical displacement motion table 2 is arranged in the groove; the vertical movement mechanism fixing table 102 is arranged behind the groove, the installation plane of the vertical movement mechanism fixing table 102 is perpendicular to the horizontal step, and the vertical movement mechanism fixing table 102 is used for fixing the vertical displacement movement table 2.
Specifically, as shown in fig. 2, the supporting base assembly 1 is composed of a workbench 101, a vertical movement mechanism fixing table 102 and a processing mechanism fixing table 103, all the mechanisms are arranged on the workbench 101, the vertical displacement movement table 2 is embedded into a groove on the workbench 101 and is mounted against the vertical movement mechanism fixing table 102, and a positioning pin is arranged on the vertical movement mechanism fixing table 102 to ensure the verticality of the whole structure and the stability of the mechanism.
In this embodiment, as shown in fig. 3, the vertical displacement motion table 2 is fixed on the support base assembly 1, and the vertical displacement motion table 2 is used for installing the concave grinding wheel 602 to be modified;
further, be provided with perpendicular linear guide in the vertical displacement motion platform 2, vertical displacement motion platform 2 still includes: an electric spindle 5, a vertical displacement independent servo motor 3, a spindle support flange plate component 4 and a grinding wheel component 6; the vertical displacement independent servo motor 3 is arranged above the vertical displacement motion platform 2, and the vertical displacement independent servo motor 3 is used for dragging the vertical linear guide rail to move; the main shaft supporting flange plate assembly 4 comprises a main shaft supporting flange plate 401 and a supporting flange plate 402 which are connected through screws, the supporting flange plate 402 is mounted on a vertical linear guide rail, the supporting flange plate 402 is of an L-shaped vertical structure, an electric main shaft 5 is fixedly mounted on the supporting flange plate 402, and the main shaft supporting flange plate assembly 4 is used for driving the electric main shaft 5 to move in the vertical direction; the grinding wheel assembly 6 is arranged at the front end of the electric spindle 5, and the grinding wheel assembly 6 is used for fixing a concave grinding wheel 602 to be trimmed.
Specifically, the main shaft supporting flange plate assembly 4 is composed of a main shaft supporting flange plate 401 and a supporting flange plate 402, the whole assembly is connected with a vertical displacement motion platform 2 driven by a vertical displacement independent servo motor 3 through bolts, the vertical displacement independent servo motor 3 drives a concave grinding wheel 602 to be trimmed on an electric main shaft 5 to move in the vertical direction, wherein the vertical displacement motion platform 2 is fixed on a vertical motion mechanism fixing platform 102, the electric main shaft 5 can rotate under the driving of a rotating motor, and the concave surface of the concave grinding wheel 602 to be trimmed is trimmed by utilizing two double-deflection laser heads 7.
Further, the top of electricity main shaft 5 is provided with fixed screw, and grinding wheel assembly 6 includes: a grinding wheel flange 601, a fixing bolt 603; the grinding wheel flange 601 is sleeved on the electric spindle 5, and the grinding wheel flange 601 is used for fixing the concave grinding wheel 602 to be repaired; fixing bolts 603 are connected to the fixing screw holes, and the fixing bolts 603 are used for fixing the grinding wheel flange 601 on the electric spindle 5.
Specifically, the grinding wheel assembly 6 comprises a grinding wheel flange 601 and a fixing bolt 603, the concave grinding wheel 602 to be modified is fixed by the grinding wheel flange 601 and then fixed on the electric spindle 5 by the fixing bolt 603, and the electric spindle 5 is fixed on the spindle support flange plate assembly 4 by the bolt.
In this embodiment, two laser trimming devices that deflect are fixed in the left and right sides of vertical displacement motion platform 2 respectively, are provided with laser head 7 on the laser trimming device that deflects to treat the concave surface of repairing concave grinding wheel 602 and repair, wherein, the laser trimming device that deflects includes: the laser horizontal adjusting device comprises a rotary disc direct drive motor 13, a rotary disc 12 and a laser horizontal adjusting assembly 11; the rotating disc direct drive motor 13 is arranged at the bottom of the deflection laser trimming device, a rotating disc 12 is arranged on a rotating shaft of the rotating disc direct drive motor 13, and a laser horizontal adjusting assembly 11 is arranged on the rotating disc 12.
In this embodiment, the deflected laser trimming apparatus further includes: a front-rear displacement independent servo motor 8, a front-rear displacement linear guide 901 and a front-rear displacement moving platform 9; the front and rear displacement moving table 9 is of a sleeve structure, the lower part of the front and rear displacement moving table 9 is fixed at the fixed end of the front and rear displacement linear guide 901 in a threaded connection mode, and the front and rear displacement moving table 9 is used for fixing the laser head 7; the moving end of the front-back displacement linear guide 901 is connected to the front-back displacement independent servo motor 8, and when the front-back displacement independent servo motor 8 operates, the front-back displacement linear guide 901 drives the laser head 7 to move back and forth, so that the focal length of laser emitted by the laser head 7 is adjusted, and the focal point is located on the concave surface of the concave grinding wheel 602 to be modified.
Specifically, the laser head 7 is used for gathering laser beams to scan and ablate the superhard abrasive grinding wheel in rotation layer by layer, and the laser head 7 is fixed on a front and back displacement moving platform 9 driven by a front and back displacement independent servo motor 8 through bolts so as to drive the laser head 7 to realize horizontal motion.
The front and back displacement mobile station 9 is fixed on the laser horizontal adjustment assembly 11 through a bolt, and then is fixed on a rotating disc 12 through a bolt, the rotating disc 12 is driven by a rotating disc direct drive motor 13, the rotation of the rotating disc is realized, and the upper part structure is driven to rotate together.
As shown in fig. 4, this embodiment shows an implementation manner of a laser leveling assembly 11, the laser leveling assembly 11 includes a laser leveling platform 1101, an adjusting screw 1102, a positioning block 1103 and a fixing block 1104, a lower end of the adjusting screw 1102 is installed on four installation screw holes of the rotary disc 12 by a threaded connection manner, an upper end of the adjusting screw 1102 passes through four installation holes of the laser leveling platform 1101, the installation holes are aligned with the installation screw holes, the adjusting screw 1102 is further provided with the positioning block 1103 and the fixing block 1104, the positioning block 1103 is located below the laser leveling platform 1101, the fixing block 1104 is located above the laser leveling platform 1101, the positioning block 1103 is used for adjusting the horizontal height of a laser head 7 on the deflection laser trimming apparatus, so that the laser heads 7 on the left and right sides are in a horizontal state with the same horizontal height, wherein the positioning block 1103 and the fixing block 1104 can be nuts.
Specifically, the laser horizontal adjustment assembly 11 comprises a laser horizontal adjustment platform 1101 and four adjustment screw rods 1102, wherein the four adjustment screw rods are located at four corners of the adjustment platform, the horizontal height of the front and rear displacement mobile station 9 is adjusted, so that the left and right displacement platforms can be kept horizontal, and the left and right beams of laser are ensured to be at the same horizontal height, so that the left and right beams of laser can be ensured to have the same depth of cut when cutting into the grinding wheel.
Further, the both sides of displacement linear guide 901 around are provided with a plurality of fine setting screw holes, and the laser trimming device that deflects still includes: a laser center adjusting block 10; the four laser center adjusting blocks 10 are arranged on the laser horizontal adjusting platform 1101, the fine adjusting screw rods are arranged at the centers of the laser center adjusting blocks 10 and are inserted into the fine adjusting screw holes, and when the fine adjusting screw rods rotate, the front and rear displacement linear guide rails 901 are pulled to move, so that laser emitted by the laser head 7 is located on a horizontal symmetry axis of the rotary disc 12.
Specifically, the four laser center adjusting blocks 10 perform fine adjustment on the front and rear displacement motion tables 9 through fine adjustment screws, and then fix the front and rear displacement linear guide rails (901) in square holes of the horizontal adjusting platform (1101) to ensure that the laser positions are located on the central axis of the rotating disc 12.
In addition, in order to adjust the laser beam to be positioned in the central axis of the rotating disc 12, two laser marking plates which are parallel to and perpendicular to the central axis of the rotating disc 12 are respectively fixed, firstly, the rotating disc 12 is rotated to the zero-degree position, a mark A is marked on the laser marking plate by utilizing the laser emitted by the laser head 7, then, the rotating disc 12 is rotated by 180 degrees, a mark B is marked on the other laser marking card, the verticality between the two marks A and B and the laser marking plate is measured, the left and right positions of the laser beam (the laser head 7) are adjusted by adjusting a fine adjustment screw of the laser center adjusting block 10, and then, marking measurement is repeatedly carried out until the connecting line of the two marks is perpendicular to the laser marking plate.
Further, a horizontal moving device is arranged below the deflection laser trimming device, and the horizontal moving device comprises: a flange mounting plate 14, a horizontal displacement motion platform 15 and a horizontal displacement independent servo motor 16; the mounting flange plate 14 is provided with a threaded hole, and the mounting flange plate 14 is fixed below the rotating disc direct drive motor 13 in a threaded connection mode; the horizontal displacement motion platform 15 is arranged below the mounting flange plate 14, a horizontal linear guide rail is arranged in the horizontal displacement motion platform 15, the horizontal displacement motion platform 15 is connected to the horizontal displacement independent servo motor 16, and when the horizontal displacement independent servo motor 16 runs, the horizontal displacement motion platform 15 drives the deflection laser trimming device to move along the horizontal direction so that laser emitted by the laser head 7 moves along the axial direction of the concave grinding wheel 602 to be trimmed.
Specifically, the rotating disc 12 is driven by a rotating disc direct drive motor 13, so that the rotating disc is rotated to drive the upper part structure to rotate together. The rotating disc 12 is fixed on an installation flange plate 14, the installation flange plate 14 is fixed on a horizontal displacement motion platform 15 driven by a horizontal displacement independent servo motor 16 through bolts, and the horizontal displacement independent servo motor 16 drives partial structures on the horizontal displacement motion platform 15 to move in the horizontal direction together.
Further, the below of horizontal displacement motion platform 15 is provided with first locating pin hole, supports base subassembly 1 and includes: a processing mechanism fixing table 103; the processing mechanism fixing platform 103 is arranged above the supporting base component 1, and the central line of the processing mechanism fixing platform 103 along the length direction is mutually vertical to the central line of the vertical displacement motion platform 2 along the height direction; the fixed platform 103 of the processing mechanism is provided with two parallel horizontal terraces along the width direction, and the horizontal terraces are provided with second positioning pin holes which are matched with the first positioning pin holes so as to enable the horizontal displacement motion platforms 15 at the left side and the right side to be attached to the horizontal terraces.
Specifically, as shown in fig. 2, the horizontal displacement motion stage 15 is fixed on the processing mechanism fixing stage 103, positioning pin holes are drilled on the horizontal displacement motion stage 15 and the processing mechanism fixing stage 103, the processing mechanism fixing stage 103 is provided with two parallel terraces, and the horizontal displacement motion stages 15 on the left and right sides are mounted by being abutted against the parallel terraces, so that the parallel relation of the mechanisms on the two sides is ensured, and the horizontal displacement motion stages are fixed on the processing mechanism fixing stage to ensure the stability of the upper structure and the laser.
Example two:
as shown in fig. 5, on the basis of the above embodiment, the present embodiment provides a method for dressing a concave grinding wheel by using the double-deflection beam truing apparatus for a concave-shaped grinding wheel described in the above embodiment, the method comprising:
specifically, the shaping method in this embodiment may be implemented by matching a numerical control system with the apparatus in the first embodiment, and the numerical control system is used to control each motor.
The laser head 7 in this embodiment is a nanosecond laser pulse laser head. The deflection laser trimming device can comprise a laser center adjusting block 10 and a laser horizontal adjusting component 11, the deflection laser trimming devices on the left side and the right side are adjusted to ensure that laser beams on two sides are located on the central axis and the same horizontal height of the rotating disc 12, and numerical control coordinates are determined at the moment, and the coordinates are matched position coordinates of the two lasers at the moment.
As shown in fig. 6, the specific implementation process in step 1 is as follows:
leveling for a single laser head 7:
firstly, fixing a laser marking plate vertical to the horizontal symmetry axis of the rotating disc 12, as shown in fig. 6(a), engraving a cross on the laser marking plate, and respectively moving the laser marking plate back and forth horizontally by using a laser front and back displacement moving platform 9 and a laser horizontal adjusting platform 1101 to enable the center of a laser red light focus circle emitted by a laser head 7 to be positioned at the center of the cross;
then, the laser head 7 is moved back and forth by the front and rear displacement moving table 9, the change of the laser in the cross is observed, the position of the positioning block 1103 is adjusted, the center of the laser spot is adjusted to be positioned at the center of the cross again, and the adjustment is repeated to level the laser on one side.
For the horizontal adjustment of the two laser heads 7:
as shown in fig. 6(b), after the laser levels on the two sides are adjusted, the laser marking plate is used to make the laser emitted by the laser head 7 respectively make a hole on the laser marking plate, and determine whether the centers of the two laser marked holes are equal in height, if not, the four positioning blocks 1103 of one side laser are adjusted at the same time, so that the laser head 7 moves upwards or downwards to ensure the equal heights of the two laser beams.
As shown in fig. 6(c), in order to adjust the laser beam to be located at the central axis of the rotating disk 12:
firstly, fixing two laser marking plates which are parallel and vertical to the central axis of the rotating disc 12 respectively;
then, the rotating disc 12 is rotated to the zero-degree position, a mark A is marked on the laser marking plate by utilizing the laser emitted by the laser head 7, then the rotating disc 12 is rotated by 180 degrees, a mark B is marked on the other laser marking card, the verticality between the two marks A and B and the laser marking plate is measured, the left and right positions of the laser beam (the laser head 7) are adjusted by adjusting a fine adjustment screw rod of the laser center adjusting block 10, then marking measurement is repeatedly carried out until the connecting line of the two marks is vertical to the laser marking plate, so that the laser emitted by the laser head 7 on the laser trimming devices deflected at two sides is in a horizontal state with the same horizontal height.
specifically, the grinding wheel set 6 is installed on the electric spindle 5, an external numerical control system is started, and the vertical displacement independent servo motor 3 is controlled to drive the vertical displacement motion table 2 to vertically move along the y-axis direction.
specifically, as shown in fig. 7(a), the horizontal displacement independent servo motor 16 drives the horizontal displacement motion stage 15 to determine the horizontal processing position of the laser on the grinding wheel, and then the vertical displacement motion stage 2 is adjusted to perform vertical motion to determine the depth of cut of the laser on the grinding wheel, at this time, the cut amounts api of the two sides to the light are the same.
and 6, carrying out laser light-focusing operation on the laser head 7, and carrying out concave surface finishing on the concave surface grinding wheel to be finished according to the horizontal processing position and the cutting depth.
Specifically, as shown in fig. 7(b), the rotating disc direct drive motors 13 on the left and right sides drive the rotating discs 12 on the two sides to rotate by the same angle phi, respectively, wherein the left rotating disc rotates counterclockwise, and the right rotating disc also rotates counterclockwise.
The laser head is subjected to laser focusing operation, the concave surface of the concave surface grinding wheel to be repaired is equally divided into two parts, the horizontal displacement independent servo motor 16 drives the horizontal displacement motion platform 15 to horizontally move the two nanosecond laser pulse laser heads 7, so that the focusing red light respectively starts to focus from the leftmost side and the middle, wherein the left side laser is positioned at the most edge of the left side motion, and the right side laser is positioned at the middle position.
And then, two nanosecond laser pulse laser heads are simultaneously opened, one laser head is processed from the leftmost side of the grinding wheel to the middle, the other laser head is processed from the middle to the rightmost side of the grinding wheel and moves back and forth, and the moving directions are consistent.
Further, the method further comprises:
and 7, judging whether the laser is in the focus position or not according to the intensity of the laser emitted by the laser head 7 on the grinding wheel material, and if not, adjusting a front-back displacement moving table 9 on the deflection laser trimming device to enable the laser to be in the focus position.
Specifically, in the processing process, whether the laser is in the focus position or not is judged according to the strength of the laser, the laser is adjusted to be in the focus position by utilizing the distance between the laser head and the surface of the grinding wheel at the initial processing position, the energy of the laser beam of the laser processing is strongest at the moment, the spark of the laser processing is largest, the laser intensity is gradually weakened along with the removal of materials, the laser is gradually in the out-of-focus position at the moment, the front and back displacement moving platform 9 driven by the front and back displacement independent servo motors 8 needs to be controlled to move to adjust the front and back distance (focusing) of the laser head, so that the laser processing point is in the focus position, the laser processing efficiency is ensured, wherein the focal length f of the laser head 7 is a certain value, and the distance from the laser head 7 to the surface of the concave grinding wheel 602 to be modified can be set as the focal length f.
And (4) until the focal length f is adjusted, the intensity of the laser cannot be adjusted, which indicates that one-time dressing is finished at the moment, the laser is closed, the grinding wheel is detected to be qualified, the dressing is finished, otherwise, the dressing is continued until the grinding wheel is qualified, and the system is closed.
As shown in fig. 8, compared with the conventional machining method in which the single laser beam is not deflected, in the machining method in which the single laser beam is not deflected, the laser beam is blocked by the starting plane to form a material accumulation, and then the material accumulation is blocked by the accumulation material to finally form a trim material accumulation slope.
In the processing method in the embodiment, the deflected laser can avoid the shielding of the starting plane on the laser, so that the effect of reducing the accumulated materials is achieved, the inclination of the grinding wheel for trimming the concave surface can be effectively reduced, the angles of two sides can be effectively reduced by using a double-beam deflection angle mode, and meanwhile, the efficiency is greatly improved.
The technical scheme of the application is described in detail in the above with reference to the accompanying drawings, and the application provides a double-deflection beam shaping device for a concave surface forming grinding wheel and a processing method, wherein the device comprises: the device comprises a supporting base assembly, a vertical displacement motion platform and a deflection laser trimming device; the vertical displacement motion platform is fixed on the supporting base assembly and used for mounting a concave grinding wheel to be repaired; two laser trimming devices that deflect are fixed in the left and right sides of vertical displacement motion platform respectively, are provided with the laser head on the laser trimming device that deflects to the concave surface of treating the repairment concave surface emery wheel is maintained, and wherein, the laser trimming device that deflects includes: the laser horizontal adjusting device comprises a rotating disc direct drive motor, a rotating disc and a laser horizontal adjusting assembly; the rotating disc direct drive motor is arranged at the bottom of the deflection laser trimming device, a rotating disc is arranged on a rotating shaft of the rotating disc direct drive motor, and a laser horizontal adjusting assembly is arranged on the rotating disc; the laser horizontal adjustment subassembly includes laser horizontal adjustment platform, accommodate the lead screw, locating piece and fixed block, four installation screws of accommodate the lead screw lower extreme on the rolling disc are installed through threaded connection, four mounting holes of laser horizontal adjustment platform are passed to accommodate the lead screw's upper end, the mounting hole is just to the installation screw, still be provided with locating piece and fixed block on the accommodate the lead screw, the locating piece is located the below of laser horizontal adjustment platform, the fixed block is located the top of laser horizontal adjustment platform, the locating piece is used for adjusting the level of the laser head on the laser trimming device that deflects, so that the laser head of the left and right sides is in the horizontality that the level is the same. Through the technical scheme in this application, utilize two bundles of laser beams that can deflect angle to carry out the concave surface to superhard abrasive material emery wheel and take shape the repairment, improve the shaping profile precision and the repairment efficiency that the concave surface was repairment.
In the present application, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The shapes of the various elements in the drawings are illustrative and do not preclude the existence of certain differences from the actual shapes, and the drawings are used for the purpose of illustrating the principles of the present application and are not intended to limit the present application.
Although the present application has been disclosed in detail with reference to the accompanying drawings, it is to be understood that such description is merely illustrative and not restrictive of the application of the present application. The scope of the present application is defined by the appended claims and may include various modifications, adaptations, and equivalents of the invention without departing from the scope and spirit of the application.
Claims (10)
1. A dual deflection beam shaping device for a concave shaped grinding wheel, the device comprising: the device comprises a supporting base assembly (1), a vertical displacement motion platform (2) and a deflection laser trimming device;
the vertical displacement motion platform (2) is fixed on the supporting base assembly (1), and the vertical displacement motion platform (2) is used for mounting a concave grinding wheel (602) to be modified;
the two deflection laser trimming devices are respectively fixed at the left side and the right side of the vertical displacement motion table (2), a laser head (7) is arranged on the deflection laser trimming devices to trim the concave surface of the concave surface grinding wheel (602) to be trimmed, wherein,
the deflection laser trimming apparatus includes: the laser horizontal adjusting device comprises a rotary disc direct drive motor (13), a rotary disc (12) and a laser horizontal adjusting assembly (11);
the rotating disc direct drive motor (13) is arranged at the bottom of the deflection laser trimming device, the rotating disc (12) is arranged on a rotating shaft of the rotating disc direct drive motor (13), and the laser horizontal adjusting assembly (11) is installed on the rotating disc (12);
the laser horizontal adjustment assembly (11) comprises a laser horizontal adjustment platform (1101), an adjusting screw rod (1102), a positioning block (1103) and a fixing block (1104), the lower end of the adjusting screw rod (1102) is installed on four mounting screw holes in the rotating disc (12) in a threaded connection mode, the upper end of the adjusting screw rod (1102) penetrates through four mounting holes of the laser horizontal adjustment platform (1101), the mounting holes are right opposite to the mounting screw holes, the adjusting screw rod (1102) is further provided with the positioning block (1103) and the fixing block (1104), the positioning block (1103) is located below the laser horizontal adjustment platform (1101), the fixing block (1104) is located above the laser horizontal adjustment platform (1101), and the positioning block (1103) is used for adjusting the horizontal height of the laser head (7) on the deflection laser trimming device, so that the laser heads (7) on the left and right sides are in a horizontal state with the same horizontal height.
2. The double-deflection beam shaping device for a concave shaped grinding wheel according to claim 1, wherein the deflection laser truing device further comprises: a front and rear displacement independent servo motor (8), a front and rear displacement linear guide rail (901) and a front and rear displacement moving platform (9);
the front and rear displacement moving platform (9) is of a sleeve structure, the lower part of the front and rear displacement moving platform (9) is fixed at the fixed end of the front and rear displacement linear guide rail (901) in a threaded connection mode, and the front and rear displacement moving platform (9) is used for fixing the laser head (7);
the moving end of the front and rear displacement linear guide rail (901) is connected to the front and rear displacement independent servo motor (8), when the front and rear displacement independent servo motor (8) operates, the front and rear displacement linear guide rail (901) drives the laser head (7) to move back and forth, and the focal length of laser emitted by the laser head (7) is adjusted, so that the focal point is located on the concave surface of the concave surface grinding wheel (602) to be modified.
3. The double-deflection beam shaping device for a concave-forming grinding wheel according to claim 2, wherein a plurality of fine-tuning screw holes are provided on both sides of the front-rear displacement linear guide (901), and the deflection laser truing device further comprises: a laser center adjustment block (10);
four laser center adjusting blocks (10) set up in on the laser horizontal adjustment platform (1101), the center department of laser center adjusting block (10) is provided with the fine setting screw rod, the fine setting screw rod inserts the fine setting screw hole, when the fine setting screw rod is rotatory, the pulling front and back displacement linear guide (901) remove, so that the laser that laser head (7) launched is located the horizontal symmetry axis of rolling disc (12).
4. The double-deflection beam shaping device for a concave-shaped grinding wheel according to claim 1, wherein a horizontal moving device is provided below the deflection laser truing device, the horizontal moving device comprising: the system comprises an installation flange plate (14), a horizontal displacement motion platform (15) and a horizontal displacement independent servo motor (16);
the mounting flange plate (14) is provided with a threaded hole, and the mounting flange plate (14) is fixed below the rotating disc direct drive motor (13) in a threaded connection mode;
horizontal displacement motion platform (15) set up in the below of mounting flange board (14), be provided with horizontal linear guide in horizontal displacement motion platform (15), horizontal displacement motion platform (15) connect in horizontal displacement independent servo motor (16), when horizontal displacement independent servo motor (16) were operated, through horizontal displacement motion platform (15) drive the laser trimming device that deflects removes along the horizontal direction, so that the laser that laser head (7) launches is followed the axial displacement of treating to rectify concave surface emery wheel (602).
5. The double-deflection beam-shaping device for a concave-shaped grinding wheel according to claim 1, wherein a vertical linear guide is provided in the vertical displacement motion stage (2), and the vertical displacement motion stage (2) further comprises: the grinding machine comprises an electric spindle (5), a vertical displacement independent servo motor (3), a spindle supporting flange plate component (4) and a grinding wheel component (6);
the vertical displacement independent servo motor (3) is arranged above the vertical displacement motion platform (2), and the vertical displacement independent servo motor (3) is used for dragging the vertical linear guide rail to move;
the main shaft support flange plate assembly (4) comprises a main shaft support flange plate (401) and a support mounting flange plate (402) which are connected through screws, the support mounting flange plate (402) is mounted on the vertical linear guide rail, the support mounting flange plate (402) is of an L-shaped vertical structure, the electric main shaft (5) is fixedly mounted on the support mounting flange plate (402), and the main shaft support flange plate assembly (4) is used for driving the electric main shaft (5) to move along the vertical direction;
the grinding wheel assembly (6) is arranged at the front end of the electric spindle (5), and the grinding wheel assembly (6) is used for fixing the concave grinding wheel (602) to be modified.
6. Double deflection beam shaping device for concave-forming grinding wheels according to claim 5, characterized in that the top end of the motorized spindle (5) is provided with a fixing screw, the grinding wheel assembly (6) comprising: a grinding wheel flange (601) and a fixing bolt (603);
the grinding wheel flange (601) is sleeved on the electric spindle (5), and the grinding wheel flange (601) is used for fixing the concave grinding wheel (602) to be repaired;
the fixing bolt (603) is connected to the fixing screw hole, and the fixing bolt (603) is used for fixing the grinding wheel flange (601) on the electric spindle (5).
7. A method of dressing a concave grinding wheel using the dual deflection beam-shaping device for a concave-forming grinding wheel of claim 1, the method comprising:
step 1, adjusting the deflection laser trimming devices on the left side and the right side to enable lasers emitted by the laser heads (7) on the deflection laser trimming devices on the two sides to be in a horizontal state with the same horizontal height;
step 2, adjusting the first height of a vertical displacement motion table (2) to enable the edge of the grinding wheel (602) with the concave surface to be modified, which is arranged on the vertical displacement motion table (2), to be in contact with the laser emitted by the laser head (7);
step 3, adjusting the horizontal displacement motion table (15) arranged below the deflection laser trimming device, and determining the horizontal processing position of the laser emitted by the laser head (7) on the concave grinding wheel (602) to be trimmed;
step 4, adjusting a second height of the vertical displacement motion table (2), and determining the cutting depth of the laser emitted by the laser head (7) on the concave surface grinding wheel (602) to be modified;
step 5, adjusting a rotating disc (12) of the deflection laser trimming device to enable included angles between the laser heads (7) arranged on the rotating disc (12) on the left side and the right side and the axial center line of the concave grinding wheel (602) to be trimmed to be opposite;
and 6, carrying out laser light-focusing operation on the laser head (7), and carrying out concave surface finishing on the concave surface grinding wheel (602) to be finished according to the horizontal machining position and the cutting depth.
8. The method of claim 7 for dressing a concave grinding wheel with a dual deflection beam shaper apparatus for concave shaping grinding wheels, said method further comprising:
and 7, judging whether the laser is in the focus position or not according to the intensity of the laser emitted by the laser head (7) irradiating on the grinding wheel material, and if not, adjusting the front and back displacement moving table (9) on the deflection laser trimming device to enable the laser to be in the focus position.
9. The machining method for dressing a concave grinding wheel with a double deflection beam-shaping device for a concave-forming grinding wheel according to claim 7, characterized in that said step 1 of adjusting the left and right deflection laser-dressing devices comprises a horizontal adjustment of a single said laser head (7), which comprises:
firstly, fixing a laser marking plate vertical to the horizontal symmetry axis of the rotating disc (12), carving a cross on the laser marking plate, and respectively moving the front and back displacement moving platform (9) and the laser horizontal adjusting platform (1101) horizontally in the front and back direction to enable the center of a laser red light focus emitted by the laser head (7) to be positioned at the center of the cross;
then, the laser head (7) is moved back and forth by the front and back displacement moving platform (9), the position of the positioning block (1103) is adjusted according to the change of the laser on the cross, the center of a laser spot is adjusted to be positioned at the center of the cross again, and the adjustment is repeated to enable the laser to be horizontal.
10. The machining method for dressing a concave grinding wheel with the double deflection beam-shaping device for a concave-forming grinding wheel according to claim 9, characterized in that said adjusting the deflection laser-dressing devices on the left and right sides in step 1 comprises adjusting the laser emitted by said laser head (7) to be located at the central axis of said rotating disc (12):
firstly, fixing two laser marking plates which are parallel and vertical to the central axis of the rotating disc (12) respectively;
then, rotating the rotating disc (12) to zero degree position, utilizing the laser emitted by the laser head (7) to mark a mark A on the laser marking plate, then rotating the rotating disc (12) 180 degrees, marking a mark B on the other laser marking card, measuring the verticality of the two marks A and B and the laser marking plate, adjusting the left and right positions of the laser head (7) through the fine adjustment screw of the laser center adjusting block (10), and repeatedly marking and measuring until two mark connecting lines are perpendicular to the laser marking plate.
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