CN109514100B - Special-shaped contour line laser automatic cutting machine - Google Patents
Special-shaped contour line laser automatic cutting machine Download PDFInfo
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- CN109514100B CN109514100B CN201811563237.5A CN201811563237A CN109514100B CN 109514100 B CN109514100 B CN 109514100B CN 201811563237 A CN201811563237 A CN 201811563237A CN 109514100 B CN109514100 B CN 109514100B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 45
- 230000006835 compression Effects 0.000 claims abstract description 29
- 238000007906 compression Methods 0.000 claims abstract description 29
- 238000003825 pressing Methods 0.000 claims description 15
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
- B23K26/38—Removing material by boring or cutting
-
- 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
- B23K26/083—Devices involving movement of the workpiece in at least one axial direction
- B23K26/0853—Devices involving movement of the workpiece in at least in two axial directions, e.g. in a plane
-
- 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
-
- 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
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a laser automatic cutting machine for a special-shaped contour line. The automatic cutting machine comprises a reference plate, wherein a laser emitter is arranged on the rear side of the reference plate, an inclined bottom plate which is inclined front and back is arranged on the upper surface of the reference plate, first sliding rails are respectively fixed on two sides of the inclined bottom plate, a limiting wheel assembly is arranged in the middle of the rear side of the inclined bottom plate, two first sliding blocks are respectively fixed on the lower surface of a cam mounting plate, a spring tensioning part is arranged on the rear side of the cam mounting plate, a spring compression part is arranged on the front side of the cam mounting plate, a first driving part is arranged on the lower side of the cam mounting plate, the profile cam profile surface is in line contact with the limiting wheel assembly, a positioning jig is fixed on the upper end surface of a main shaft, and a clamp jig is fixed on the positioning jig for clamping and positioning a product. The invention has the advantages of accurate cutting profile, high product quality and high production efficiency.
Description
Technical Field
The invention relates to a device for processing a special-shaped contour of a 3C product, in particular to a laser automatic cutting machine for a special-shaped contour line.
Background
In the processing of 3C products, the processing of special-shaped contour lines always exists, and the current products pursue high-precision, miniaturization and ultrathin development, in the current processing, profiling grinding tools are often adopted for direct die cutting and forming, the precision requirement of the grinding tools is very high, the grinding tools are easy to abrade, the product size change is large, and the current product requirements are difficult to meet.
In the present processing, laser cutting technology appears, and current device adopts laser focus fixed unchanged, and the raw and other materials are fixed on the profile modeling cam, and the profile modeling cam relies on the drive wheel to be fixed with the spacing wheel, and the structure of motor direct connection drive wheel, profile modeling cam rotate and rely on the frictional force of drive wheel and profile modeling cam inner wall to provide the power of motion, its defect lies in: firstly, production efficiency is low, secondly, under the working condition of the equipment, the swing amplitude of the profiling cam is large, so that the deviation between an actual cutting line and a theoretical cutting line is large and unstable, thirdly, the laser and the rotation of a product cannot be synchronously carried out, and the product is cut excessively or continuously.
Disclosure of Invention
In order to solve one or more of the above problems, the present invention provides a profiled contour laser automatic cutting machine.
According to one aspect of the invention, the special-shaped contour line laser automatic cutting machine comprises a frame, wherein the frame comprises a datum plate, a main beam is vertically fixed in the middle of the rear side of the upper surface of the datum plate, a lifting part is fixed on the side surface of the main beam, a laser emitter is arranged on the lifting part,
a bracket with a U-shaped structure is vertically fixed in the middle of the front side of the upper surface of the reference plate, an inclined bottom plate which inclines forwards and backwards is arranged in the bracket, a central through hole is arranged in the middle of the inclined bottom plate, a first sliding rail is respectively fixed at the left side and the right side of the central through hole, a limit wheel component is arranged in the middle of the rear side of the central through hole, lugs are respectively vertically fixed at the two sides of the central through hole, a compacting plate is connected at the front side of the central through hole,
the lower surface of the cam mounting plate is respectively fixed with two first sliding blocks, the first sliding blocks are matched with the first sliding rail, the center of the cam mounting plate is provided with a bearing hole,
the spring tensioning part comprises a thread tensioning shaft and a rear positioning shaft, the thread tensioning shaft is fixed on each ear seat, the two rear positioning shafts are respectively fixed on two sides of the rear end of the cam mounting plate, a tension spring is arranged between the thread tensioning shaft and the rear positioning shaft,
the spring compression part comprises a compression shaft and a front positioning shaft, the two compression shafts are respectively sleeved at two ends of the compression plate, the two front positioning shafts are respectively fixed at two sides of the rear end of the cam mounting plate, a pressure spring is arranged between the compression shaft and the front positioning shaft,
the first driving part comprises a servo motor, the servo motor is fixed on the lower surface of the cam mounting plate through a motor bracket, the servo motor is connected with the lower end of the main shaft through a coupler, the middle of the main shaft is connected with a bearing hole through a first bearing, a sealing bearing retainer ring is arranged on the lower surface of the bearing hole, a profiling cam is fixed on the front end of the main shaft, a shaft collar is arranged between the profiling cam and the first bearing, the profile surface of the profiling cam is in line contact with a limiting wheel assembly, a positioning jig is fixed on the upper end surface of the main shaft, a clamp jig is fixed on the positioning jig, a product is clamped and positioned on the clamp jig,
the PLC controller is all connected to laser emitter and servo electricity, and servo motor drives the profile modeling cam and rotates, under the effect of spacing round subassembly, spring tensioning portion and spring compression portion centre gripping, first slide rail and first slider straight line direction produce accurate cutting profile, laser emitter cutting process product. The beneficial effects are as follows: firstly, the device adopts the profiling cam to drive the clamp jig to perform circumferential rotation, and simultaneously the profiling cam is contacted with the limiting wheel assembly, so that the profiling cam linearly moves back and forth through the first sliding block and the first sliding rail, and a special-shaped contour line is simulated, the mode is high in precision and good in stability, the clamp jig cannot unnecessarily swing in the working state of equipment, the actual cutting line has no deviation from the theoretical cutting line, the phenomenon of over-cutting or continuous cutting caused by slipping of a friction mode and sudden stress is avoided, and the phenomenon of over-cutting or continuous cutting caused by too fast or too slow cutting at a certain place is avoided; secondly, the laser transmitter and the servo motor are electrically connected with the PLC controller, so that the matching heights of the laser transmitter and the servo motor are consistent, the running speed can be increased, the operation efficiency is improved, the cutting quality is ensured, and the product yield is high; thirdly, the spring tensioning part and the spring compression part ensure that the limiting wheel assembly and the profiling cam are in close contact all the time, the operation flexibility is high, the cutting precision is improved, and the product quality is improved.
In some embodiments, the limiting wheel assembly comprises a limiting shaft and a second bearing, the lower end of the limiting shaft is arranged in the middle of the rear side of the central through hole, the two second bearings are fixed at the upper end of the limiting shaft, the second bearing is in line contact with the profiling cam,
the middle of the limiting shaft is provided with a blocking shoulder, the second bearing at the lower side is attached to the blocking shoulder, and the threaded piece is used for fixing the second bearing at the upper side through the end face of the cover plate.
In some embodiments, the lifting part comprises a fixed plate, the fixed plate is fixed on the side surface of the main beam, the upper surface of the fixed plate is fixed with an end plate, a screw rod is sleeved in the end plate, the upper end of the screw rod is provided with a second driving part, the lower surface of the screw rod is provided with nuts, the two nuts are fixed on the rear side surface of the movable plate,
one end face of the right-angle folded plate is fixed on the moving plate, the other end face of the right-angle folded plate is fixed with the laser transmitter, and the laser transmitter is located above the clamping fixture.
In some embodiments, the two sides of the fixed plate are respectively fixed with a second sliding rail, the rear side surface of the moving plate is provided with a second sliding block, the second sliding rail is matched with the second sliding block,
the upper end of the end plate is provided with a locking bearing, a shaft sleeve screw rod of the locking bearing,
the second driving part is a hand wheel or a servo motor.
In some embodiments, the bracket comprises a lower bottom plate, side wall plates are vertically fixed on two sides of the lower bottom plate, the side wall plates are provided with circular arc holes which are distributed up and down, a screw thread piece is connected with one end of the inclined bottom plate in an adjustable way through the circular arc holes, the other end of the inclined bottom plate is fixed at the other end of the inclined bottom plate in a screw thread way,
in some embodiments, the threaded tensioning shaft is a cylindrical screw, a first optical shaft end is machined at the front end of the threaded tensioning shaft, a first radial hole is formed on the first optical shaft end,
the rear end of the rear positioning shaft is in threaded connection with two sides of the rear end of the cam mounting plate, two side surfaces of the front end of the rear positioning shaft are processing planes to form a positioning end, a second radial hole is arranged on the positioning end, two ends of the tension spring are respectively connected with the first radial hole and the second radial hole,
the rear end of the front positioning shaft is connected with two sides of the front end of the cam mounting plate in a threaded manner, the front end of the pressing shaft is connected with two ends of the pressing plate in a threaded manner, the pressing plate is adjustably fixed on a slotted hole at the front end of the inclined bottom plate,
the diameter of the front end of the front positioning shaft and the diameter of the rear end of the pressing shaft are the same as the inner diameter of the pressure spring.
In some embodiments, rectangular first grooves are respectively formed on the left side and the right side of the central through hole on the inclined bottom plate, the first sliding rails are respectively fixed in the first grooves,
the two ends of the first groove are also respectively fixed with a limiting baffle column, and the limiting baffle column limits the moving position of the first sliding block.
In some embodiments, a stepped through hole is arranged in the middle of the positioning jig, a cylindrical head screw is screwed into a threaded hole on the upper surface of the main shaft through the stepped through hole, a plurality of magnets are arranged on the edge of the upper surface of the positioning jig, positioning pins are respectively arranged on two sides of the center of the positioning jig,
the clamp jig comprises an upper clamp and a lower clamp, the lower clamp adopts a locating pin and is attracted and fixed by a magnet,
the lower clamp is matched with the upper clamp, and the product is clamped and positioned between the lower clamp and the upper clamp.
In some embodiments, an auxiliary light source is further arranged on one side of the reference plate, the auxiliary light source comprises a lamp body, a lamp shade is arranged outside the lamp body, an electric wire is connected to the tail end of the lamp body, a flexible hose is wrapped at the outer end of the electric wire, and the lamp body can be located above the rear side of the clamp.
Drawings
FIG. 1 is a three-dimensional schematic view of a special-shaped profile line laser automatic cutter device according to an embodiment of the present invention;
FIG. 2 is a three-dimensional schematic view of the elimination frame of the profiled contour laser automatic cutter shown in FIG. 1;
FIG. 3 is a three-dimensional schematic view of the lifting portion shown in FIG. 2;
FIG. 4 is a schematic top view of the lifting portion shown in FIG. 3;
FIG. 5 is a schematic sectional view of the lifting portion A-A shown in FIG. 4;
FIG. 6 is a three-dimensional schematic view of the first drive section, spring tensioning section and spring compression section of FIG. 2;
FIG. 7 is a schematic front view of the first drive section, spring tensioning section and spring compression section of FIG. 6;
FIG. 8 is a schematic top view of the first drive section, spring tensioning section and spring compression section of FIG. 6;
FIG. 9 is a left side schematic view of the first drive section, spring tensioning section and spring compression section of FIG. 6;
FIG. 10 is a schematic B-B cross-sectional view of the first drive section, spring tension section and spring compression section of FIG. 9;
FIG. 11 is a schematic three-dimensional exploded view of the first drive section, spring tension section and spring compression section of FIG. 6;
FIG. 12 is a three-dimensional schematic view of the spring tension and compression portions of FIG. 6;
positioning jig 01, stepped through hole 011, magnet 012, positioning pin 013, clamping jig 02, upper clamp 021, lower clamp 022,
frame 1, reference plate 10, lower frame 101, slide plate 102, keyboard 103, upper frame 104, sliding door 105, viewing window 106, display screen 107, main beam 11, bracket 12, inclined bottom plate 121, central through hole 1211, first groove 1212, ear mount 122, pressing plate 123, lower bottom plate 124, side wall plate 125, circular arc hole 1251, first slide rail 13, first slider 14, limit stopper 15,
lifting part 2, locking bearing 20, fixing plate 21, end plate 22, screw 23, second driving part 24, nut 25, moving plate 26, right angle flap 27, second slide rail 28, second slider 29, laser emitter 3,
the limiting wheel assembly 4, the limiting shaft 41, the stop shoulder 411, the second bearing 42, the cover plate 43,
the first driving part 5, the servo motor 50, the motor bracket 51, the vertical plate 511, the flange plate 512, the coupler 52, the main shaft 53, the first bearing 54, the sealing bearing retainer 55, the profiling cam 56, the collar 57,
the cam mounting plate 6, the bearing hole 61,
the spring tensioning part 7, the screw tensioning shaft 71, the first optical shaft end 711, the first radial hole 712, the rear positioning shaft 72, the positioning end 721, the second radial hole 722, the tension spring 73,
the spring compressing part 8, the compressing shaft 81, the front positioning shaft 82, the compression spring 83,
auxiliary light source 9, lamp body 91, lamp shade 92, flexible hose 93.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
Fig. 1 to 12 schematically show a profiled contour laser automatic cutter according to an embodiment of the present invention. As shown in the figure, the device comprises a frame 1, wherein the frame 1 comprises a reference plate 10, a main beam 11 is vertically fixed in the middle of the rear side of the upper surface of the reference plate 10, a lifting part 2 is fixed on the side surface of the main beam 11, a laser emitter 3 is arranged on the lifting part 2,
a bracket 12 with a U-shaped structure is vertically fixed in the middle of the front side of the upper surface of the reference plate 10, an inclined bottom plate 121 which inclines forwards and backwards is arranged in the bracket 12, a central through hole 1211 is arranged in the middle of the inclined bottom plate 121, first sliding rails 13 are respectively fixed on the left side and the right side of the central through hole 1211, a limit wheel assembly 4 is arranged in the middle of the rear side of the central through hole 1211, lugs 122 are respectively vertically fixed on the two sides of the central through hole 1211, a pressing plate 123 is connected on the front side of the central through hole 1211,
the lower surface of the cam mounting plate 6 is respectively fixed with two first sliding blocks 14, the first sliding blocks 14 are matched with the first sliding rails 13, the center of the cam mounting plate 6 is provided with a bearing hole 61,
the spring tensioning part 7 comprises a thread tensioning shaft 71 and a rear positioning shaft 72, the thread tensioning shaft 71 is fixed on each ear seat 122, the two rear positioning shafts 72 are respectively fixed on two sides of the rear end of the cam mounting plate 6, a tension spring 73 is arranged between the thread tensioning shaft 71 and the rear positioning shafts 72,
the spring compression part 8 comprises a compression shaft 81 and a front positioning shaft 82, the two compression shafts 81 are respectively sleeved at two ends of the compression plate 123, the two front positioning shafts 82 are respectively fixed at two sides of the rear end of the cam mounting plate 6, a pressure spring 83 is arranged between the compression shaft 81 and the front positioning shafts 82,
the first driving part 5 comprises a servo motor 50, the servo motor 50 is fixed on the lower surface of a cam mounting plate 6 through a motor bracket 51, the servo motor 50 is connected with the lower end of a main shaft 53 through a coupler 52, the middle of the main shaft 53 is connected with a bearing hole 61 through a first bearing 54, a sealing bearing retainer ring 55 is arranged on the lower surface of the bearing hole 61, a profiling cam 56 is fixed on the front end of the main shaft 53, a collar 57 is arranged between the profiling cam 56 and the first bearing 54, the outer contour surface of the profiling cam 56 is in line contact with a limiting wheel assembly 4, a positioning jig 01 is fixed on the upper end surface of the main shaft 53, a clamping jig 02 is fixed on the positioning jig 01, a product is clamped and positioned on the clamping jig 02,
the PLC controller is all connected to laser emitter 3 and servo motor 50 electricity, and servo motor 50 drives profile modeling cam 56 rotation, under the effect of spacing round subassembly 4, spring tensioning portion 7 and spring compression portion 8 centre gripping, and first slide rail 13 and first slider 14 straight line direction produce accurate cutting profile, and laser emitter 3 cuts the processing product. The beneficial effects are as follows: firstly, the device adopts the profiling cam 56 to drive the clamp jig 02 to perform circumferential rotation, and simultaneously the profiling cam 56 is contacted with the limiting wheel assembly 4, so that the profiling cam 56 linearly moves back and forth through the first sliding block 14 and the first sliding rail 13, and a special-shaped contour line is simulated, the mode is high in precision and good in stability, the clamp jig 02 cannot unnecessarily swing under the working state of equipment, the actual cutting line has no deviation from the theoretical cutting line, slipping of a friction mode and contour error abnormality caused by sudden stress are avoided, and the phenomenon of over-cutting or continuous cutting caused by too fast or too slow cutting at a certain place is avoided; secondly, the laser transmitter 3 and the servo motor 50 are electrically connected with the PLC controller, so that the matching heights of the laser transmitter 3 and the servo motor 50 are consistent, the running speed can be increased, the operation efficiency is improved, the cutting quality is ensured, and the product yield is high; thirdly, the spring tensioning part 7 and the spring compression part 8 ensure that the limiting wheel assembly 4 and the profiling cam 56 are always in close contact, the operation flexibility is high, the cutting precision is improved, and the product quality is improved.
Preferably, the limiting wheel assembly 4 comprises a limiting shaft 41 and a second bearing 42, the lower end of the limiting shaft 41 is arranged in the middle of the rear side of the central through hole 1211, the two second bearings 42 are fixed at the upper end of the limiting shaft 41, the second bearings 42 are in line contact with the profiling cam 56,
the middle of the limiting shaft 41 is provided with a blocking shoulder 411, the second bearing 42 at the lower side is attached to the blocking shoulder 411, and the threaded piece is used for fixing the second bearing 42 at the upper side through the end face of the cover plate 43. The beneficial effects are as follows: the device is simple in structure, the second bearing 42 is good in guiding performance, small in friction resistance and rotation resistance and convenient to replace.
Preferably, the lifting part 2 comprises a fixed plate 21, the fixed plate 21 is fixed on the side surface of the main beam 11, an end plate 22 is fixed on the upper surface of the fixed plate 21, a screw rod 23 is sleeved in the end plate 22 in a penetrating way, a second driving part 24 is arranged at the upper end of the screw rod 23, nuts 25 are arranged on the lower surface of the screw rod 23, two nuts 25 are fixed on the rear side surface of the moving plate 26,
one end face of the right-angle folded plate 27 is fixed on the moving plate 26, the other end face of the right-angle folded plate 27 is fixed with the laser transmitter 3, and the laser transmitter 3 is located above the clamping fixture 02. The beneficial effects are as follows: the lifting part 2 is convenient to install and adjust, high in adjustment precision, small in up-down running resistance, high in running straight line precision, free of left-right deviation, and capable of guaranteeing good cutting effect and cutting precision.
Preferably, the main beam 11 is an aluminum profile.
Preferably, the two sides of the fixed plate 21 are respectively fixed with a second sliding rail 28, the rear side surface of the moving plate 26 is provided with a second sliding block 29, the second sliding rail 28 is matched with the second sliding block 29,
the upper end of the end plate 22 is provided with a locking bearing 20, a shaft sleeve screw 23 of the locking bearing 20,
the second driving part 24 is a hand wheel or a servo motor. The beneficial effects are as follows: the second driving part 24 of the servo motor has high control precision, can automatically lift and lower, and the locking bearing 20 ensures self-locking force and prevents the phenomenon of over-cutting or cutting weakness caused by up-and-down movement.
Preferably, the bracket 12 includes a lower bottom plate 124, side wall plates 125 are vertically fixed on two sides of the lower bottom plate 124, arc holes 1251 distributed up and down are provided on the side wall plates 125, a screw member is adjustably connected with one end of the inclined bottom plate 121 through the arc holes 1251, and the other end of the inclined bottom plate 121 is screwed on the other end of the inclined bottom plate 121, which has the advantages that: the circular arc hole 1251 can effectively obtain a preferred adjustment range of the inclination angle of the inclined bottom plate 121, and cutting of various products is used.
The motor bracket 51 comprises a vertical plate 511 and a flange plate 512, the lower end of the vertical plate 511 is vertically fixed on two sides of the upper surface of the flange plate 512, the servo motor 50 is fixed on two sides of the lower surface of the flange plate 512, the upper end of the vertical plate 511 is fixed on two transverse sides of the cam mounting plate 6, the vertical plate 511 is vertical to the first sliding rail 13, and the coupler 52 is positioned between the two vertical plates 511. The beneficial effects are as follows: the motor bracket 51 is simple in structure, small in vibration, good in rotation precision and high in product quality.
Preferably, the screw tightening shaft 71 is a cylindrical screw, the front end of the screw tightening shaft 71 is provided with a first optical shaft end 711, the first optical shaft end 711 is provided with a first radial hole 712,
the rear end of the rear positioning shaft 72 is connected with the two sides of the rear end of the cam mounting plate 6 by screw threads, the two sides of the front end of the rear positioning shaft 72 are processing planes to form a positioning end 721, a second radial hole 722 is arranged on the positioning end 721, the two ends of the tension spring 73 are respectively connected with the first radial hole 712 and the second radial hole 722,
the rear end of the front positioning shaft 82 is connected with both sides of the front end of the cam mounting plate 6 in a threaded manner, the front end of the pressing shaft 81 is connected with both ends of the pressing plate 123 in a threaded manner, the pressing plate 123 is adjustably fixed on a slotted hole at the front end of the inclined bottom plate 121,
the diameter of the front end of the front positioning shaft 82 and the diameter of the rear end of the pressing shaft 81 are the same as the inner diameter of the compression spring 83. The beneficial effects are as follows: the spring force adjusting device is simple in structure, convenient to install and maintain and convenient to adjust spring force.
Preferably, on the inclined bottom plate 121, first grooves 1212 having a rectangular shape are formed at left and right sides of the central through hole 1211, respectively, the first slide rails 13 are fixed in the first grooves 1212,
the two ends of the first groove 1212 are also respectively fixed with a limit stop post 15, and the limit stop posts 15 limit the moving position of the first slide block 14. The beneficial effects are as follows: the machined first groove 1212 has better flatness, so that the straightness of the first sliding rail 13 is better, and the running accuracy of the profiling cam 56 driven by the first sliding block 14 is higher.
Preferably, a stepped through hole 011 is arranged in the middle of the positioning jig 01, a cylindrical head screw is screwed into a threaded hole on the upper surface of the main shaft 53 through the stepped through hole 011, a plurality of magnets 012 are arranged on the edge of the upper surface of the positioning jig 01, positioning pins 013 are respectively arranged on two sides of the center of the positioning jig 01,
the clamp 02 comprises an upper clamp 021 and a lower clamp 022, the lower clamp 022 locates the locating pin 013 and is provided with a magnet 012 for attracting and fixing,
the lower clamp 022 is matched with the upper clamp 021, and the product clamp is positioned between the lower clamp 022 and the upper clamp 021.
Preferably, the frame 1 comprises a lower frame 101 with a frame structure, a sealing plate is arranged on the outer side surface of the lower frame 101 for sealing, a reference plate 10 is arranged on the upper surface of the lower frame 101, electronic components are arranged in the lower frame 101, a sliding plate 102 is arranged on one side of the lower frame 101, a keyboard 103 is arranged on the sliding plate 102,
the four sides of the reference plate 10 are fixedly provided with an upper frame 104, sealing plates are respectively sealed at the rear side, the left side, the right side and the upper end of the upper frame 104, a sliding door 105 is sealed at the lower end of the front side of the upper frame 104, an observation window 106 made of an acrylic plate is arranged in the sliding door 105, and a display screen 107 is arranged at one end of the front side of the upper frame 104.
Preferably, reference plate 10 one side still is provided with auxiliary light source 9, and auxiliary light source 9 includes lamp body 91, installs lamp shade 92 outside the lamp body 91, and lamp body 91 terminal wiring electric wire, electric wire outer end parcel have flexible hose 93, and lamp body 91 can be located clamp 02 rear side top. The beneficial effects are as follows: this setting has guaranteed that inside has good light in the cutting process, makes the convenient observation processing state of outsider.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (8)
1. The utility model provides a special-shaped contour line laser automatic cutting machine which is characterized by comprising a frame (1), wherein the frame (1) comprises a reference plate (10), a main beam (11) is vertically fixed in the middle of the rear side of the upper surface of the reference plate (10), a lifting part (2) is fixed on the side surface of the main beam (11), a laser emitter (3) is arranged on the lifting part (2),
a bracket (12) with a U-shaped structure is vertically fixed in the middle of the front side of the upper surface of the reference plate (10), an inclined bottom plate (121) which inclines forwards and backwards is arranged in the bracket (12), a central through hole (1211) is arranged in the middle of the inclined bottom plate (121), first sliding rails (13) are respectively fixed at the left side and the right side of the central through hole (1211), a limiting wheel assembly (4) is arranged in the middle of the rear side of the central through hole (1211) and lugs (122) are respectively vertically fixed at the two sides, a pressing plate (123) is connected to the front side of the central through hole (1211),
two first sliding blocks (14) are respectively fixed on the lower surface of the cam mounting plate (6), the first sliding blocks (14) are matched with the first sliding rail (13), a bearing hole (61) is arranged in the center of the cam mounting plate (6),
the spring tensioning part (7) comprises a thread tensioning shaft (71) and a rear positioning shaft (72), the thread tensioning shaft (71) is fixed on each lug seat (122), the two rear positioning shafts (72) are respectively fixed on two sides of the rear end of the cam mounting plate (6), a tension spring (73) is arranged between the thread tensioning shaft (71) and the rear positioning shaft (72),
the spring compression part (8) comprises a compression shaft (81) and a front positioning shaft (82), the two compression shafts (81) are respectively sleeved at two ends of the compression plate (123), the two front positioning shafts (82) are respectively fixed at two sides of the rear end of the cam mounting plate (6), a pressure spring (83) is arranged between the compression shaft (81) and the front positioning shaft (82),
the first driving part (5) comprises a servo motor (50), the servo motor (50) is fixed on the lower surface of the cam mounting plate (6) through a motor bracket (51), the servo motor (50) is connected with the lower end of a main shaft (53) through a coupler (52), the middle of the main shaft (53) is connected with a bearing hole (61) through a first bearing (54), a sealing bearing retainer ring (55) is arranged on the lower surface of the bearing hole (61), a profiling cam (56) is fixed on the front end of the main shaft (53), a collar (57) is arranged between the profiling cam (56) and the first bearing (54), the outer contour surface of the profiling cam (56) is in line contact with a limiting wheel assembly (4), the upper end surface of the main shaft (53) is fixedly provided with a positioning jig (01), a clamp jig (02) is fixed on the positioning jig (01), a product is clamped and positioned on the clamp jig (02),
the laser transmitter (3) and the servo motor (50) are electrically connected with a PLC controller, the servo motor (50) drives the profiling cam (56) to rotate, the spring tensioning part (7) and the spring compressing part (8) are clamped under the action of the limiting wheel assembly (4), the first sliding rail (13) and the first sliding block (14) are linearly guided to generate an accurate cutting profile, and the laser transmitter (3) cuts a processed product;
the limiting wheel assembly (4) comprises a limiting shaft (41) and a second bearing (42), wherein the lower end of the limiting shaft (41) is arranged in the middle of the rear side of the central through hole (1211), the two second bearings (42) are fixed at the upper end of the limiting shaft (41), the second bearings (42) are in line contact with the profiling cam (56),
a stop shoulder (411) is arranged in the middle of the limiting shaft (41), the second bearing (42) at the lower side is attached to the stop shoulder (411), and the threaded piece is used for fixing the second bearing (42) at the upper side through the end face of the cover plate (43);
the lifting part (2) comprises a fixed plate (21), the fixed plate (21) is fixed on the side surface of the main beam (11), an end plate (22) is fixed on the upper surface of the fixed plate (21), a screw rod (23) is sleeved in the end plate (22) in a penetrating way, a second driving part (24) is arranged at the upper end of the screw rod (23), nuts (25) are arranged on the lower surface of the screw rod (23), two nuts (25) are fixed on the rear side surface of the movable plate (26),
one end face of a right-angle folded plate (27) is fixed on the moving plate (26), the other end face of the right-angle folded plate (27) is fixed with the laser transmitter (3), and the laser transmitter (3) is located above the clamp jig (02).
2. The special-shaped contour line laser automatic cutting machine according to claim 1, wherein the two sides of the fixed plate (21) are respectively fixed with a second sliding rail (28), the rear side surface of the movable plate (26) is provided with a second sliding block (29), the second sliding rail (28) is matched with the second sliding block (29),
a locking bearing (20) is arranged at the upper end of the end plate (22), the locking bearing (20) is sleeved with the screw rod (23),
the second driving part (24) is a hand wheel or a servo motor.
3. The special-shaped profile line laser automatic cutting machine according to claim 1, wherein the bracket (12) comprises a lower bottom plate (124), side wall plates (125) are vertically fixed on two sides of the lower bottom plate (124), arc holes (1251) distributed up and down are formed in the side wall plates (125), a threaded piece is adjustably connected with one end of the inclined bottom plate (121) through the arc holes (1251), and the other end of the inclined bottom plate (121) is fixed at the other end of the inclined bottom plate (121) through threads.
4. The special-shaped contour line laser automatic cutting machine according to claim 1, wherein the thread tensioning shaft (71) adopts a cylindrical head screw, a first optical shaft end (711) is processed at the front end of the thread tensioning shaft (71), a first radial hole (712) is formed on the first optical shaft end (711),
the rear end of the rear positioning shaft (72) is in threaded connection with two sides of the rear end of the cam mounting plate (6), two sides of the front end of the rear positioning shaft (72) form positioning ends (721) for a processing plane, the positioning ends (721) are provided with second radial holes (722), and two ends of the tension spring (73) are respectively connected with the two ends of the tension spring
-a first radial hole (712) and-said second radial hole (722).
5. The special-shaped contour line laser automatic cutting machine according to claim 4, wherein the rear end of the front positioning shaft (82) is in threaded connection with both sides of the front end of the cam mounting plate (6), the front end of the pressing shaft (81) is in threaded connection with both ends of the pressing plate (123), the pressing plate (123) is adjustably fixed on a slotted hole at the front end of the inclined bottom plate (121),
the diameter of the front end of the front positioning shaft (82) is the same as the diameter of the rear end of the pressing shaft (81) and the inner diameter of the pressure spring (83).
6. The special-shaped contour line laser automatic cutting machine according to claim 1, wherein rectangular first grooves (1212) are respectively formed on the left and right sides of the central through hole (1211) on the inclined bottom plate (121), the first slide rails (13) are respectively fixed in the first grooves (1212),
limiting stop posts (15) are further fixed at two ends of the first groove (1212) respectively, and the limiting stop posts (15) limit the moving position of the first sliding block (14).
7. The special-shaped contour line laser automatic cutting machine according to claim 1, wherein a stepped through hole (011) is arranged in the middle of the positioning jig (01), a cylindrical head screw is screwed into a threaded hole on the upper surface of the main shaft (53) through the stepped through hole (011), a plurality of magnets (012) are arranged on the edge of the upper surface of the positioning jig (01), positioning pins (013) are respectively arranged on two sides of the center of the positioning jig (01),
the clamp jig (02) comprises an upper clamp (021) and a lower clamp (022), the lower clamp (022) is positioned by the positioning pin (013) and is attracted and fixed by the magnet (012),
the lower clamp (022) is matched with the upper clamp (021), and a product is clamped and positioned between the lower clamp (022) and the upper clamp (021).
8. The special-shaped contour line laser automatic cutting machine according to claim 1, wherein an auxiliary light source (9) is further arranged on one side of the reference plate (10), the auxiliary light source (9) comprises a lamp body (91), a lampshade (92) is arranged outside the lamp body (91), an electric wire is connected to the tail end of the lamp body (91), a flexible hose (93) is wrapped at the outer end of the electric wire, and the lamp body (91) can be located above the rear side of the clamp tool (02).
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| CN201811563237.5A CN109514100B (en) | 2018-12-20 | 2018-12-20 | Special-shaped contour line laser automatic cutting machine |
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| CN201811563237.5A CN109514100B (en) | 2018-12-20 | 2018-12-20 | Special-shaped contour line laser automatic cutting machine |
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