CN117483945A - Air chuck structure of laser cutting machine - Google Patents
Air chuck structure of laser cutting machine Download PDFInfo
- Publication number
- CN117483945A CN117483945A CN202311853423.3A CN202311853423A CN117483945A CN 117483945 A CN117483945 A CN 117483945A CN 202311853423 A CN202311853423 A CN 202311853423A CN 117483945 A CN117483945 A CN 117483945A
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- extrusion
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- 238000003698 laser cutting Methods 0.000 title claims abstract description 23
- 238000001125 extrusion Methods 0.000 claims abstract description 54
- 239000002243 precursor Substances 0.000 claims abstract description 8
- 210000000078 claw Anatomy 0.000 claims description 40
- 230000005540 biological transmission Effects 0.000 abstract description 25
- 230000033001 locomotion Effects 0.000 abstract description 15
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012423 maintenance 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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
-
- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Abstract
The invention relates to the field of laser cutting, in particular to an air chuck structure of a laser cutting machine, which comprises a precursor and a rear body; the precursor comprises an end cover, wherein a pneumatic unit is arranged in the end cover; the pneumatic unit comprises a bottom plate, a plurality of cylinders are arranged on the side wall of one side of the bottom plate in a circumferential array manner, and the rear ends of the cylinders are rotationally connected to the bottom plate; the mode of worm cooperation worm wheel has been designed in this embodiment, realizes the rectilinear motion of jack catch, utilizes the transmission characteristics between worm and the worm wheel, and the worm drives the worm wheel and rotates, belongs to laborsaving transmission, and the worm wheel drives the worm and is hard transmission, and transmission resistance is big, and utilizes the worm wheel to drive the worm and be hard driven characteristics, can guarantee the stability of jack catch, when the air feed system of cylinder appears atmospheric pressure inadequately or the pressure release, the worm cooperation worm wheel can initiatively stabilize the jack catch, guarantees the stability that the work piece was held by the extrusion of jack catch, is the protection to laser cutting machine.
Description
Technical Field
The invention relates to the field of laser cutting, in particular to an air chuck structure of a laser cutting machine.
Background
The laser cutting is the most commonly used application technology in the laser processing industry, has the advantages of high speed, high precision, no deformation of a workpiece and the like, is widely applied to various processing and manufacturing industries, and is matched with a chuck to ensure the stability of a workpiece during laser cutting operation, thereby being beneficial to high-efficiency and high-precision processing and manufacturing; the existing chuck generally comprises a manual chuck, an air chuck, a hydraulic chuck and an electric chuck, wherein the air chuck is generally applied, and can meet the high-efficiency requirement of laser cutting due to the characteristics of large clamping force, high precision and high clamping speed.
At present, the pneumatic chuck realizes the movement of the clamping jaw through the pressure of gas, namely, the linear movement of the cylinder is turned into the rotary movement of the middle part through a plurality of cylinders, the rotary movement drives the linear movement of the clamping jaw, or the linear movement of the cylinder drives the middle wedge block, the inclined surface of the middle wedge block presses the stressed wedge block on the clamping jaw, and then the linear movement of the clamping jaw is driven; the claw extrudes on the work piece, and the work piece also can the reaction extrusion claw, if pneumatic pressure is insufficient, perhaps unexpected pressure release, the work piece can have the accident that drops, and the laser cutting head can be collided in the drop of work piece, and in case the laser cutting head is impaired, later maintenance cost is huge.
Accordingly, an air chuck structure of a laser cutter is proposed for the above-mentioned problems.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to an air chuck structure of a laser cutting machine, which comprises a precursor and a rear body; the precursor comprises an end cover, wherein a pneumatic unit is arranged in the end cover; the pneumatic unit comprises a bottom plate, a plurality of cylinders are arranged on the side wall of one side of the bottom plate in a circumferential array manner, the rear ends of cylinder bodies of the cylinders are rotationally connected to the bottom plate, push rods are fixedly connected to the output ends of the cylinders, the axes of the push rods are perpendicular to the bottom plate, the outer end parts of the push rods are rotationally connected with ring bodies, annular teeth are arranged on the outer surfaces of the ring bodies, rod bodies are arranged on the outer sides of the ring bodies, one half of the outer rings of the rod bodies are provided with tooth parts meshed with the annular teeth, the other half of the rod bodies is in worm arrangement, the other half of the rod bodies is meshed with a worm wheel, an outer end surface outer ring of the worm wheel is provided with a driving tooth, a claw is arranged on one side of the driving tooth and is connected to the bottom plate through a sliding rail, racks are arranged on the side walls of the claw, and the racks are meshed with the driving teeth;
each claw comprises a base plate and a clamping part; the upper surface of the substrate is provided with a strip-shaped groove, the bottom surface in the strip-shaped groove is provided with a strip-shaped sliding hole, and the bottom of the sliding hole is provided with a rectangular groove; the clamping part comprises a sliding rod and a stepped extrusion block, and the sliding rod can be connected in the strip-shaped groove in a sliding way;
the lower layer extrusion part of extrusion piece sets up the telescopic hole, and the telescopic hole sets up towards extrusion piece rear side, sliding connection kicking block in the telescopic hole, and the outer terminal surface rigid coupling of kicking block has the roof, and the inner of kicking block is connected with the lead screw, and the lead screw rotates and runs through to the preceding terminal surface of extrusion piece.
Preferably, the rear body comprises a rear shell, a belt pulley is arranged between the rear shell and the bottom plate, a cylinder body is arranged on the rear end face of the rear shell, a plurality of annular grooves are formed in the outer ring surface of the cylinder body, vent holes are formed in the annular grooves, and the vent holes are communicated with the air cylinder.
Preferably, racks are arranged on two side walls of each jaw, and each rack is meshed with a driving tooth.
Preferably, the surface of slide bar is offered the through-hole, and adjusting bolt is connected in the through-hole, and adjusting bolt runs through the through-hole to in extending to the slide hole, and adjusting bolt's tip threaded connection has rectangular cardboard, cardboard sliding connection in the rectangle inslot.
Preferably, a row of clamping teeth are arranged on two sides of the outer notch of the strip-shaped groove; the lower surface of the sliding rod is provided with a clamping groove which is matched with the clamping tooth.
Preferably, the upper layer extrusion part of the extrusion block is provided with a through hole, an extension body is connected in the through hole in a sliding way, and the front end surface of the extension body is fixedly connected with an extrusion plate; the upper end face of the extrusion block is in threaded connection with a fastening bolt, and the end part of the fastening bolt extends into the through hole and is extruded on the surface of the extension body.
Preferably, the upper surface of the extension body is provided with a strip-shaped abdication groove, the rear end part of the extension body is provided with a rectangular hole, the rectangular hole is arranged in the abdication groove and vertically penetrates through the extension body, the rectangular hole and the abdication groove are internally provided with L-shaped fixing rods, the horizontal part of each fixing rod is positioned in the corresponding abdication groove and is arranged on the lower end surface of the corresponding fastening bolt, and the vertical part of each fixing rod is slidably connected in each rectangular hole; the vertical end part of the fixed rod is arranged in a wedge shape; a row of fixed slots are formed in the upper surface of the lower layer extrusion part of the extrusion block, and the vertical end parts of the fixed rods can be embedded into the fixed slots.
Preferably, the end of the extrusion plate is provided with a rotary groove, the rotary groove is rotationally connected with the rotary body, and each side wall of the rotary body is provided with an arc-shaped surface.
Preferably, the upper surface of the rear end of the sliding rod is provided with a pointer; the notch of the strip-shaped groove is provided with a graduated scale.
Preferably, the bottom plate is provided with a plurality of arc grooves, the axes of the arc grooves are coaxial with the axes of the ring body, and the push rod is slidably connected in the arc grooves.
The invention has the advantages that:
1. the mode of worm cooperation worm wheel has been designed in this embodiment, realizes the rectilinear motion of jack catch, utilizes worm cooperation worm wheel transmission characteristics, and the worm drives the worm wheel and rotates, belongs to laborsaving transmission, and the worm wheel drives the worm and is hard transmission, and transmission resistance is big, and utilizes the worm wheel to drive the worm and be hard driven characteristics, can guarantee the stability of jack catch, when the air feed system of cylinder appears atmospheric pressure inadequately or the pressure release, the worm cooperation worm wheel can initiatively stabilize the jack catch, guarantees the stability that the work piece was held by the extrusion of jack catch, is the protection to laser cutting machine.
2. The clamping teeth are matched with the clamping grooves, so that stability between the sliding rod and the base plate is improved, the clamping jaws can resist larger external reaction force, and the clamping jaws are also a measure for guaranteeing the stability of a workpiece; the cooperation of kicking block and roof, rotatory lead screw, lead screw promote roof withdrawal, and the roof moves backward, and the diameter of circle that the increase jack catch encloses can extrude to expand the bigger work piece of diameter, further enlarges the application scope of this jack catch.
Drawings
FIG. 1 is a perspective view of a pneumatic chuck structure in accordance with the present invention;
FIG. 2 is a side view of the air chuck structure of the present invention;
FIG. 3 is a perspective view of the pneumatic unit and base plate of the present invention;
FIG. 4 is a perspective view of a pneumatic unit according to the present invention;
FIG. 5 is a top view of the pneumatic unit of the present invention;
FIG. 6 is a schematic view of the engagement of the driving teeth with the pawl according to the present invention;
FIG. 7 is a perspective view of the pawl of the present invention;
FIG. 8 is an exploded view of the pawl of the present invention;
FIG. 9 is a perspective view of a clip portion of the present invention;
FIG. 10 is a cross-sectional view of the pawl of the present invention;
FIG. 11 is a top view of a substrate according to the present invention;
FIG. 12 is a cross-sectional view of an extrusion block of the present invention.
In the figure: 1. an end cap; 2. a bottom plate; 3. a cylinder; 4. a push rod; 5. a ring body; 6. annular teeth; 7. a rod body; 8. a worm wheel; 9. a driving tooth; 10. a claw; 11. a slide rail; 12. a rack; 13. a rear case; 14. a belt pulley; 15. a column; 16. an annular groove; 17. a vent hole; 18. a support frame; 19. a guide groove; 20. a guide rod; 21. a substrate; 22. a bar-shaped groove; 23. a slide hole; 24. rectangular grooves; 25. a slide bar; 26. extruding a block; 27. a through hole; 28. an adjusting bolt; 29. a clamping plate; 30. latch teeth; 31. a telescopic hole; 32. a top block; 33. a top plate; 34. a screw rod; 35. a through hole; 36. an extension body; 37. an extrusion plate; 38. a fastening bolt; 39. a relief groove; 40. a rectangular hole; 41. a fixed rod; 42. a fixing groove; 43. a rotating body; 44. a pointer; 45. a graduated scale; 46. an arc-shaped groove.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1-7, an air chuck structure of a laser cutter includes a precursor and a rear body; the precursor comprises an end cover 1, wherein a pneumatic unit is arranged inside the end cover 1; the pneumatic unit comprises a bottom plate 2, a plurality of cylinders 3 are circumferentially arranged on the side wall of one side of the bottom plate 2 in an array manner, the rear ends of cylinder bodies of the cylinders 3 are rotationally connected to the bottom plate 2, the output ends of the cylinders 3 are fixedly connected with push rods 4, the axes of the push rods 4 are perpendicular to the bottom plate 2, the outer end parts of the push rods 4 are rotationally connected with ring bodies 5, annular teeth 6 are arranged on the outer surfaces of the ring bodies 5, rod bodies 7 are arranged on the outer sides of the ring bodies 5, tooth parts meshed with the annular teeth 6 are arranged on half outer rings of the rod bodies 7, the other half of the rod bodies 7 are arranged in a worm, worm wheels 8 are meshed with the other half of the rod bodies 7, driving teeth 9 are arranged on the outer rings of the outer end faces of the worm wheels 8, clamping claws 10 are arranged on one sides of the driving teeth 9 and are connected to the bottom plate 2 through sliding rails 11, racks 12 are arranged on the side walls of the clamping claws 10, and the racks 12 are meshed with the driving teeth 9;
the rear body comprises a rear shell 13, a belt pulley 14 is arranged between the rear shell 13 and the bottom plate 2, a column 15 is arranged on the rear end surface of the rear shell 13, a plurality of annular grooves 16 are formed in the outer ring surface of the column 15, vent holes 17 are formed in the annular grooves 16, and the vent holes 17 are communicated with the air cylinder 3;
two ends of the rod body 7 are erected on the bottom plate 2 through a supporting frame 18, and the rod body 7 can rotate on the supporting frame 18; the two ends of the shaft body of the worm wheel 8 are respectively and rotatably connected with the bottom plate 2 and the end cover 1; the back of the ring body 5 is provided with a ring-shaped guide groove 19, a T-shaped guide rod 20 is arranged in the guide groove 19, the guide rod 20 is fixed on the bottom plate 2, and the guide rod 20 and the rod body 7 clamp the ring body 5; the cylinder 3 pushes the push rod 4, the push rod 4 pushes the ring body 5 to rotate, the annular teeth 6 on the ring body 5 are meshed with the teeth part on the transmission rod body 7, the worm part of the rod body 7 drives the worm wheel 8 to rotate, the driving teeth 9 on the worm wheel 8 are meshed with the transmission rack 12 to move, and the claw 10 is driven to do linear motion along the slide rail 11, so that the claw 10 can squeeze, clamp and fix a workpiece;
the mode of worm cooperation worm wheel 8 has been designed in this embodiment, realize the rectilinear motion of jack catch 10, utilize the transmission characteristics between worm and the worm wheel 8, the worm drives worm wheel 8 and rotates, belong to laborsaving transmission, and worm wheel 8 drives the worm and is hard transmission, and transmission resistance is big, and utilize worm wheel 8 to drive the worm for hard driven characteristics, can guarantee the stability of jack catch 10, when the air feed system of cylinder 3 appears atmospheric pressure inadequately or the pressure release, worm cooperation worm wheel 8 can initiatively stabilize jack catch 10, guarantee the stability that the work piece was held by jack catch 10 extrusion, be the protection to the laser cutting machine.
Referring to fig. 1 to 7, racks 12 are provided on both side walls of each of the jaws 10, and each of the racks 12 is engaged with the driving teeth 9; the worm is arranged on two sides of one claw 10 to be matched with the worm wheel 8 for transmission, double-layer protection is provided, the stress of the claw 10 is guaranteed to be uniform, the claw 10 can be clamped on a workpiece in a centralized extrusion mode along the sliding rail 11, and the method is a measure for improving the stability of the workpiece.
Referring to fig. 7 to 11, each of the claws 10 includes a base plate 21 and a clamping portion; the upper surface of the base plate 21 is provided with a strip-shaped groove 22, the inner bottom surface of the strip-shaped groove 22 is provided with a strip-shaped slide hole 23, and the bottom of the slide hole 23 is provided with a rectangular groove 24; the clamping part comprises a slide bar 25 and a stepped extrusion block 26, the slide bar 25 can be connected in the bar-shaped groove 22 in a sliding way, a through hole 27 is formed in the surface of the slide bar 25, an adjusting bolt 28 is connected in the through hole 27, the adjusting bolt 28 penetrates through the through hole 27 and extends into the slide hole 23, a rectangular clamping plate 29 is connected to the end part of the adjusting bolt 28 in a threaded way, and the clamping plate 29 is connected in the rectangular groove 24 in a sliding way; the worm is matched with the worm wheel 8, so that the transmission efficiency is low, and the linear motion stroke of the claw 10 is low, so that the pneumatic chuck in the design of the embodiment has limitation in use, the claw 10 is optimized for the purpose, and the effective stroke of the claw 10 is increased; the base plate 21 can be linearly adjusted along the strip-shaped groove 22, and the diameter of the circle surrounded by the clamping jaw 10 is adjusted; the slide bar 25 is fixed in the bar-shaped groove 22 through the adjusting bolt 28, the adjusting bolt 28 is tightened, the clamping plate 29 is tensioned by the adjusting bolt 28, and the slide bar 25 is extruded in the bar-shaped groove 22, so that the effective extrusion stroke of the clamping jaw 10 is fixed.
Referring to fig. 9-10, a row of latches 30 are disposed on both sides of the outer notch of the strip-shaped groove 22; the lower surface of the sliding rod 25 is provided with a clamping groove which is matched with the clamping tooth 30; the latch 30 is matched with the clamping groove, so that stability between the slide rod 25 and the base plate 21 is improved, the claw 10 can resist larger external reaction force, and the method is also a measure for ensuring the stability of a workpiece.
Referring to fig. 7-10, the lower layer extrusion part of the extrusion block 26 is provided with a telescopic hole 31, the telescopic hole 31 is arranged towards the rear side of the extrusion block 26, the telescopic hole 31 is connected with a top block 32 in a sliding manner, the outer end surface of the top block 32 is fixedly connected with a top plate 33, the inner end of the top block 32 is connected with a screw rod 34, and the screw rod 34 rotates and penetrates through the front end surface of the extrusion block 26; the cooperation of kicking block 32 and roof 33, rotatory lead screw 34, lead screw 34 promote roof 33 back and remove, roof 33 back removes, increases the diameter that jack catch 10 encloses into the circle, can extrude and expand the work piece that the diameter is bigger, further enlarges the application scope of this jack catch 10.
Referring to fig. 7-12, the upper layer extrusion portion of the extrusion block 26 is provided with a through hole 35, an extension body 36 is slidably connected in the through hole 35, and an extrusion plate 37 is fixedly connected to the front end surface of the extension body 36; the upper end surface of the extrusion block 26 is in threaded connection with a fastening bolt 38, and the end part of the fastening bolt 38 extends into the through hole 35 and is extruded on the surface of the extension body 36; the extension body 36 is matched with the extrusion plate 37, so that the effective clamping range of the clamping jaw 10 can be enlarged, and compared with the clamping jaw 10, the extrusion plate 37 can enlarge the extrusion contact surface of a workpiece and improve the stability between the workpiece and the chuck; the extension 36 and the jaw 10 are designed to be detachable, without affecting the structural application of the jaw 10 itself.
Referring to fig. 12, the upper surface of the extension body 36 is provided with a strip-shaped relief groove 39, the rear end portion of the extension body 36 is provided with a rectangular hole 40, the rectangular hole 40 is arranged in the relief groove 39, the rectangular hole 40 vertically penetrates into the extension body 36, the rectangular hole 40 and the relief groove 39 are internally provided with an L-shaped fixing rod 41, the horizontal portion of the fixing rod 41 is positioned in the relief groove 39 and is arranged on the lower end surface of the fastening bolt 38, and the vertical portion of the fixing rod 41 is slidably connected in the rectangular hole 40; the vertical end of the fixing rod 41 is arranged in a wedge shape; a row of fixing grooves 42 are formed in the upper surface of the lower layer extrusion part of the extrusion block 26, and the vertical end parts of the fixing rods 41 can be embedded into the fixing grooves 42; the fixing bolt 38 is tightened, the fixing bolt 38 presses the fixing rod 41, the vertical end of the fixing rod 41 is embedded in the fixing groove 42, at this time, the extension body 36 is pressed in the through hole 35 by the fixing bolt 38, and meanwhile, the stability of the extension body 36 is further enhanced through the fixing rod 41, so that the claw 10 can act on a workpiece with larger pressing force, and the stability between the workpiece and the chuck is improved.
Referring to fig. 7, 8 and 12, the end of the extrusion plate 37 is provided with a rotary groove, the rotary groove is rotationally connected with the rotary body 43, and each side wall of the rotary body 43 is provided with an arc surface; the rotating body 43 is arranged on the extrusion plate 37, arc-shaped surfaces are arranged on each side surface of the rotating body 43, the diameters of the circles where the arc-shaped surfaces are located are different, the rotating body 43 is rotated to find the arc-shaped surface which is more attached to the surface of the workpiece, and stability between the workpiece and the extrusion plate 37 is improved.
Referring to fig. 7, the upper surface of the rear end of the slide bar 25 is provided with a pointer 44; the notch of the strip-shaped groove 22 is provided with a graduated scale 45; the cooperation of the pointer 44 and the graduated scale 45 can observe the corresponding positions of the pointer 44 and the graduated scale 45 when the effective clamping range of the clamping jaws 10 is adjusted, and all the clamping jaws 10 can be quickly adjusted in place.
Referring to fig. 3, the bottom plate 2 is provided with a plurality of arc grooves 46, the axes of the arc grooves 46 are coaxial with the axes of the ring body 5, and the push rod 4 is slidably connected in the arc grooves 46; the arc-shaped groove 46 restrains the moving route of the push rod 4, and improves the stability of the push rod 4 driving the ring body 5 to rotate.
Working principle: the cylinder 3 pushes the push rod 4, the push rod 4 pushes the ring body 5 to rotate, the annular teeth 6 on the ring body 5 are meshed with the teeth part on the transmission rod body 7, the worm part of the rod body 7 drives the worm wheel 8 to rotate, the driving teeth 9 on the worm wheel 8 are meshed with the transmission rack 12 to move, and the claw 10 is driven to do linear motion along the slide rail 11, so that the claw 10 can squeeze, clamp and fix a workpiece;
in the embodiment, a mode of matching the worm with the worm wheel 8 is designed, so that the linear motion of the claw 10 is realized, the worm drives the worm wheel 8 to rotate by utilizing the transmission characteristic between the worm and the worm wheel 8, the labor-saving transmission is realized, the worm wheel 8 drives the worm to realize the labor-saving transmission, the transmission resistance is large, the worm wheel 8 drives the worm to realize the labor-saving transmission, the stability of the claw 10 can be ensured, and when the air pressure of an air supply system of the air cylinder 3 is insufficient or pressure is released, the worm can actively stabilize the claw 10 by matching with the worm wheel 8, so that the stability of the workpiece clamped by the claw 10 in an extrusion mode is ensured, and the laser cutting machine is protected;
the two sides of one claw 10 are provided with worms matched with the worm wheel 8 for transmission, so that double-layer protection is provided, the uniform stress on the claw 10 is ensured, the claw 10 can be extruded and clamped on a workpiece in a concentrated manner along the sliding rail 11, and the method is a measure for improving the stability of the workpiece; the worm is matched with the worm wheel 8, so that the transmission efficiency is low, and the linear motion stroke of the claw 10 is low, so that the pneumatic chuck in the design of the embodiment has limitation in use, the claw 10 is optimized for the purpose, and the effective stroke of the claw 10 is increased; the base plate 21 can be linearly adjusted along the strip-shaped groove 22, and the diameter of the circle surrounded by the clamping jaw 10 is adjusted; the slide bar 25 is fixed in the bar-shaped groove 22 through the adjusting bolt 28, the adjusting bolt 28 is tightened, the clamping plate 29 is tensioned by the adjusting bolt 28, and the slide bar 25 is extruded in the bar-shaped groove 22, so that the effective extrusion stroke of the clamping jaw 10 is fixed;
the latch 30 is matched with the clamping groove, so that stability between the slide bar 25 and the base plate 21 is improved, the claw 10 can resist larger external reaction force, and the method is also a measure for ensuring the stability of a workpiece; the top block 32 is matched with the top plate 33, the screw rod 34 is rotated, the screw rod 34 pushes the top plate 33 to retract, the top plate 33 moves backwards, the diameter of a circle surrounded by the claw 10 is increased, a workpiece with larger diameter can be extruded and expanded, and the application range of the claw 10 is further enlarged;
the extension body 36 is matched with the extrusion plate 37, so that the effective clamping range of the clamping jaw 10 can be enlarged, and compared with the clamping jaw 10, the extrusion plate 37 can enlarge the extrusion contact surface of a workpiece and improve the stability between the workpiece and the chuck; the extension body 36 and the claw 10 are designed to be detachable, so that the structural application of the claw 10 is not affected;
the fixing bolt 38 is tightened, the fixing bolt 38 presses the fixing rod 41, the vertical end of the fixing rod 41 is embedded in the fixing groove 42, at this time, the extension body 36 is pressed in the through hole 35 by the fixing bolt 38, and meanwhile, the stability of the extension body 36 is further enhanced through the fixing rod 41, so that the claw 10 can act on a workpiece with larger pressing force, and the stability between the workpiece and the chuck is improved.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An air chuck structure of laser cutting machine, its characterized in that: comprising a precursor and a rear body; the precursor comprises an end cover (1), wherein a pneumatic unit is arranged inside the end cover (1); the pneumatic unit comprises a bottom plate (2), a plurality of cylinders (3) are arranged on the side wall of one side of the bottom plate (2) in a circumferential array manner, the rear ends of the cylinders (3) are rotationally connected to the bottom plate (2), the output ends of the cylinders (3) are fixedly connected with push rods (4), the axes of the push rods (4) are perpendicular to the bottom plate (2), the outer end parts of the push rods (4) are rotationally connected with ring bodies (5), annular teeth (6) are arranged on the outer surfaces of the ring bodies (5), rod bodies (7) are arranged on the outer sides of the ring bodies (5), tooth parts meshed with the annular teeth (6) are arranged on half outer rings of the rod bodies (7), the other half of the rod bodies (7) are arranged in a worm mode, worm wheels (8) are meshed with the other half of the rod bodies (7), driving teeth (9) are arranged on the outer rings of the outer end faces of the worm wheels (8), clamping claws (10) are arranged on one sides of the driving teeth (9), the clamping claws (10) are connected to the bottom plate (2) through sliding rails (11), racks (12) are arranged on the side walls of the clamping claws (10), and the racks (12) are meshed with the driving teeth (9).
Each jaw (10) comprises a base plate (21) and a clamping part; the upper surface of the base plate (21) is provided with a strip-shaped groove (22), the inner bottom surface of the strip-shaped groove (22) is provided with a strip-shaped sliding hole (23), and the bottom of the sliding hole (23) is provided with a rectangular groove (24); the clamping part comprises a slide bar (25) and a stepped extrusion block (26), and the slide bar (25) can be connected in the strip-shaped groove (22) in a sliding way;
the lower layer extrusion part of the extrusion block (26) is provided with a telescopic hole (31), the telescopic hole (31) is arranged towards the rear side of the extrusion block (26), the top block (32) is connected in a sliding manner in the telescopic hole (31), the outer end face of the top block (32) is fixedly connected with a top plate (33), the inner end of the top block (32) is connected with a screw rod (34), and the screw rod (34) rotates and penetrates through the front end face of the extrusion block (26).
2. The air chuck structure of a laser cutting machine as set forth in claim 1, wherein: the rear body comprises a rear shell (13), a belt pulley (14) is arranged between the rear shell (13) and the bottom plate (2), a column body (15) is arranged on the rear end face of the rear shell (13), a plurality of annular grooves (16) are formed in the outer ring surface of the column body (15), vent holes (17) are formed in the annular grooves (16), and the vent holes (17) are communicated with the air cylinder (3).
3. The air chuck structure of a laser cutting machine as set forth in claim 1, wherein: racks (12) are arranged on two side walls of each jaw (10), and each rack (12) is meshed with a driving tooth (9).
4. The air chuck structure of a laser cutting machine as set forth in claim 1, wherein: the surface of the sliding rod (25) is provided with a through hole (27), an adjusting bolt (28) is connected in the through hole (27), the adjusting bolt (28) penetrates through the through hole (27) and extends into the sliding hole (23), the end part of the adjusting bolt (28) is connected with a rectangular clamping plate (29) in a threaded manner, and the clamping plate (29) is slidably connected in the rectangular groove (24).
5. The air chuck structure of a laser cutting machine as set forth in claim 1, wherein: a row of latch teeth (30) are arranged on two sides of the outer notch of the strip-shaped groove (22); the lower surface of the sliding rod (25) is provided with a clamping groove which is matched with the clamping tooth (30).
6. The air chuck structure of a laser cutting machine as set forth in claim 1, wherein: a through hole (35) is formed in the upper extrusion part of the extrusion block (26), an extension body (36) is connected in a sliding manner in the through hole (35), and an extrusion plate (37) is fixedly connected to the front end surface of the extension body (36); the upper end face of the extrusion block (26) is in threaded connection with a fastening bolt (38), and the end part of the fastening bolt (38) extends into the through hole (35) and is extruded on the surface of the extension body (36).
7. The air chuck structure of a laser cutter according to claim 6, wherein: the upper surface of the extension body (36) is provided with a strip-shaped abdication groove (39), the rear end part of the extension body (36) is provided with a rectangular hole (40), the rectangular hole (40) is arranged in the abdication groove (39), the rectangular hole (40) vertically penetrates through the extension body (36), the rectangular hole (40) and the abdication groove (39) are internally provided with L-shaped fixing rods (41), the horizontal part of each fixing rod (41) is positioned in the corresponding abdication groove (39) and is arranged on the lower end surface of the corresponding fastening bolt (38), and the vertical part of each fixing rod (41) is slidably connected in the corresponding rectangular hole (40); the vertical end part of the fixed rod (41) is arranged in a wedge shape; a row of fixing grooves (42) are formed in the upper surface of the lower layer extrusion part of the extrusion block (26), and the vertical end parts of the fixing rods (41) can be embedded into the fixing grooves (42).
8. The air chuck structure of a laser cutter according to claim 6, wherein: the end of the extrusion plate (37) is provided with a rotary groove, the rotary groove is rotationally connected with the rotary body (43), and each side wall of the rotary body (43) is provided with an arc-shaped surface.
9. The air chuck structure of a laser cutter according to claim 5, wherein: the upper surface of the rear end of the sliding rod (25) is provided with a pointer (44); the notch of the strip-shaped groove (22) is provided with a graduated scale (45).
10. The air chuck structure of a laser cutting machine according to claim 2, wherein: the base plate (2) is provided with a plurality of arc grooves (46), the axes of the arc grooves (46) are coaxial with the axes of the ring body (5), and the push rod (4) is slidably connected in the arc grooves (46).
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