CN209969876U

CN209969876U - Three-dimensional five-axis 3D laser cutting machine

Info

Publication number: CN209969876U
Application number: CN201920466577.XU
Authority: CN
Inventors: 吴让大; 李正; 张业芝
Original assignee: Penta Laser Wenzhou Co ltd
Current assignee: Pentium Laser Zhejiang Co ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-01-21
Anticipated expiration: 2029-04-09

Abstract

The utility model discloses a three-dimensional five-axis 3D laser cutting machine, which comprises a base, a workbench, a mounting rack and a cutting head, wherein the workbench is connected with the base in a sliding way, the laser cutting head realizes the adjustment of the laser cutting head in the three-dimensional five-axis direction through a Y-axis mounting rack, a Z-axis mounting rack, a C-axis pipeline and a B-axis pipeline, the C-axis pipeline, the B-axis pipeline and a cutting head main body are connected through a right-angle joint, a reflecting mirror and a zooming lens component are arranged in the right-angle joint, the shortening of the whole optical path is realized, the laser energy loss is reduced, the moving stroke of the cutting head is limited by arranging an anti-collision block in the three-dimensional direction, a protection mechanism for protecting the Z-axis mounting rack is arranged on the Y-axis mounting rack, the moving stroke of the Z-axis is limited through a tension value, the, the control accuracy is improved, and the equipment is protected by setting multiple protections, so that the service life of the equipment is prolonged.

Description

Three-dimensional five-axis 3D laser cutting machine

Technical Field

The utility model relates to a laser cutting field, concretely relates to five three-dimensional 3D laser cutting machines.

Background

The high-power laser cutting has become the middle-flow grinding column device for processing metal plates at present, and has the advantages of high processing efficiency, high precision and the like, which are popular in the market. With the improvement of the cutting requirement of a workpiece, the cutting requirement of the three-dimensional cutting is improved from two-dimensional cutting, the robot three-dimensional cutting can meet the processing work with low precision and efficiency requirements in the field by the advanced, flexible and rapid flexible processing characteristics of the robot three-dimensional cutting, but the existing common three-dimensional laser cutting machine generally processes a three-dimensional workpiece by adopting the rotation of a laser cutting head at any angle and any position in a three-dimensional space for processing devices with higher precision and efficiency requirements, especially for the cutting processing of the three-dimensional workpiece with a complex space curved surface. But in large-scale laser cutting equipment, the cutting range of the laser cutting head is larger, the volume of the whole linkage assembly is larger, the space positioning is realized by the position change of the laser cutting head, the position adjusting path of the laser cutting head is complicated, so that the laser cutting head is easy to be unstable when the position is adjusted, and the laser cutting precision is reduced,

the position adjusting structure of the existing three-dimensional laser cutting machine is integrally complex, so that the adjusting path is complex, the fixed point adjusting angle cannot be accurately controlled in algorithm, and the safety distance between the cutting head and the workpiece is kept.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a three-dimensional five-axis 3D laser cutting machine that can accurate control to can guarantee cutting production safety.

In order to achieve the above object, the utility model provides a three-dimensional five-axis 3D laser cutting machine, which comprises a base, a workbench, a mounting rack and a cutting head, wherein the workbench is connected with the base in a sliding way, a driving device for driving the workbench to slide along a single shaft is arranged in the base, a first anti-collision block is arranged on the base, the first anti-collision block is a position proximity switch and is used for detecting the moving position of the workbench, the mounting position of the first anti-collision block limits the sliding stroke range of the workbench, the first anti-collision block is coupled with the driving device, the mounting rack comprises a portal frame, a Y-axis mounting rack and a Z-axis mounting rack, the portal frame is provided with a cross beam, the cross beam and the sliding direction of the workbench are vertically arranged in a horizontal plane, the Y-axis mounting rack is connected with the cross beam in a sliding way, the Z-axis mounting rack is connected with the Y, the gantry is provided with a first driving motor, the first driving motor drives the Y-axis mounting frame to slide on the beam, the beam is provided with a second anti-collision block, the second anti-collision block is a position proximity switch, the second anti-collision block is used for detecting the moving position of the Y-axis mounting frame, the mounting position of the second anti-collision block limits the sliding travel range of the Y-axis mounting frame, the second anti-collision block is coupled with the first driving motor, the Y-axis mounting frame is provided with a second driving motor, the second driving motor drives the Z-axis mounting frame to slide in the vertical direction of the Y-axis mounting frame, the Y-axis mounting frame is provided with a third anti-collision block, the third anti-collision block is a position proximity switch, the third anti-collision block is used for detecting the moving position of the Z-axis mounting frame, the mounting position of the third anti-collision block limits the sliding travel range of the Z-axis, and the third anti-collision block is coupled with the second driving motor, the cutting head comprises a laser generator, a focusing optical assembly, a connecting pipeline assembly and a cutting head main body, wherein the laser generator is fixedly arranged on a Y-axis mounting frame, two ends of the connecting pipeline are respectively connected with a laser channel of the laser generator and the cutting head main body to form a laser beam channel, the focusing optical assembly is arranged in the connecting pipeline, the connecting pipeline comprises a C-axis pipeline and a B-axis pipeline, the C-axis pipeline is rotatably arranged on a Z-axis mounting frame, the B-axis pipeline is connected with the other end of the C-axis pipeline, a first right-angle joint is arranged between the B-axis pipeline and the C-axis pipeline, the B-axis pipeline is perpendicular to the C-axis pipeline, a second right-angle joint is arranged between the B-axis pipeline and the cutting head main body, the B-axis pipeline and the cutting head main body are perpendicular to each other through a second right-angle joint, a zoom lens assembly is arranged in the second right-angle joint, a first hollow motor is arranged on the Z-axis mounting rack, the first hollow motor is connected with the C-axis pipeline and used for driving the C-axis pipeline, a second hollow motor is arranged in the B-axis pipeline, the second hollow motor is connected with the second right-angle joint and used for driving the second right-angle joint to rotate,

y axle mount structure is provided with Z axle protection mechanism, and this Z axle protection mechanism includes first mount pad, first force sensor and first control module, first mount pad is fixed to be set up on Y axle mount structure, first force sensor fixed connection is in first mount pad upper end, first force sensor is provided with first extension spring, and Z axle mount structure is connected to this first extension spring, first force sensor transmission model gives first control module, first control module transmission signal of telecommunication is for second driving motor, and this first control module is set for the pulling force threshold value, and when first force sensor's detected value was greater than the pulling force threshold value, first control module control second driving motor stall.

As a further improvement, be provided with between first extension spring and the Z axle mount frame and connect the rope, first mount pad is provided with the first reference location seat that is used for the location to connect the rope, first extension spring is connected with the connection rope, be provided with first guide rail on the first mount pad, first reference location seat and first guide rail sliding connection, connect the rope upper segment position and fix on first reference location seat, first reference location seat is connected to first extension spring one end.

As a further improvement, the cutting head main part includes the nozzle, and this nozzle is as capacitance sensor's sense pole, the nozzle is connected with capacitance sensor, and this capacitance sensor is used for adjusting the distance between nozzle and the workstation, capacitance sensor is provided with the electric capacity threshold value of setting for nozzle and workstation minimum distance, capacitance sensor is coupled with second driving motor, and when capacitance sensor reached the electric capacity threshold value, capacitance sensor controlled second driving motor stall.

As a further improvement, the nozzle is telescopic toper cover tubulose, the nozzle includes that the diameter degressive a plurality of toper sleeve pipe in proper order, and a plurality of toper sleeve pipe cup joints each other, and is adjacent be provided with the spring part between the toper sleeve pipe is intraductal.

As a further improvement of the utility model, the workstation is provided with the flexible cover of protection on the both ends on the sliding direction, and this flexible cover of protection dorsad workstation one end and the ascending both ends fixed connection of the relative workstation sliding direction of base, the up end and the part side of the flexible cover of protection cover base, the material of the flexible cover of protection is soft ripple cover, the base side is provided with the second spout, the terminal surface is provided with a plurality of gyro wheel under the flexible cover of protection, and this gyro wheel holds to in the second spout to with second spout sliding connection.

As a further improvement of the utility model, the driving device comprises a screw rod guide rail, a nut seat and a third driving motor which are arranged along the single-axis sliding direction of the workbench and drive the screw rod guide rail to rotate, the nut seat is in threaded connection with the lead screw guide rail, the nut seat is fixed on the lower bottom surface of the workbench, two sliding guide rails which are symmetrically arranged are arranged on the base, the lower end surface of the workbench is provided with a sliding seat, the side surface of the sliding guide rail is provided with a first sliding groove, the sliding seat is connected with the upper end surface of the sliding guide rail in a sliding way, and the sliding guide rail extends downwards to form a sliding block extending into the first sliding groove, positioning blocks are arranged on the front side and the rear side of the sliding seat in the sliding direction, the positioning block is provided with a positioning convex edge extending into the first sliding groove, the positioning convex edge slides in the first sliding groove, the depth of the positioning convex edge extending into the first sliding groove is larger than the depth of the sliding block extending into the first sliding groove.

As a further improvement, the C central siphon way includes seal cover and inner skleeve, the seal cover cup joints in the inner skleeve outside, this seal cover and mounting bracket fixed connection, the first hollow motor of inner skleeve fixed connection to rotate with the mounting bracket and be connected, seal cover one end fixed connection is on the mounting bracket, the seal cover other end and first right-angle joint sealing connection, the seal cover both ends are provided with first sealing washer and second sealing washer, the outer wall of seal cover is provided with connects the mount pad, be provided with circuit joint and air circuit joint on connecting the mount pad, circuit joint and air circuit joint all are provided with first interface and second interface, electrical control cabinet circuit and cutting head circuit are connected respectively to first interface and second interface.

As a further improvement of the present invention, the sealing sleeve is provided with a first protection mechanism for preventing the second right-angle joint from oversteering to cause overwinding, the first protection mechanism comprises a second tension sensor and a second control module, the second tension sensor is provided with a second tension spring, the cutting head line is provided with a hoop fixed on the outer peripheral wall thereof, the second tension spring is connected with the hoop, the second tension sensor transmits a signal to the second control module, the second control module transmits an electrical signal to the second hollow motor, the second control module is set with a tension threshold value, when a detection value of the second tension sensor is greater than the tension threshold value, the second control module controls the second hollow motor to stop rotating, the first protection mechanism further comprises a second mounting seat and a second positioning seat for fixing the cutting head line, the second mounting seat is provided with a second guide rail, the second positioning seat is connected with the second guide rail in a sliding mode, the hoop is fixed on the second positioning seat, and one end of the second tension spring is connected with the second positioning seat.

As a further improvement of the utility model, the workstation side is provided with the bracket that is used for placing the circuit, be provided with the supporting component who is used for lifting the bracket on the base, the bracket is flexible pipe including being the cladding form, and this flexible pipe is the flexible pipe that can deform and buckle, supporting component includes that a plurality of is the level and sets up the supporting seat in the base side and fix the deflector on the supporting seat, and this deflector is provided with the second groove of sliding that is used for holding flexible pipe, when flexible pipe was tractive, slide at the second inslot that slides.

As a further improvement of the utility model, a first drag chain is arranged on the Y-axis mounting rack, the first drag chain is a deformable corrugated pipe, a containing cavity for the electric control cabinet circuit to pass through is arranged in the corrugated pipe, the containing cavity comprises an inlet and an outlet, the mounting rack is provided with a guiding support piece, the guiding support piece is used for being abutted against a first drag chain, the first drag chain is arranged in a U shape, one end of the first drag chain bypasses the guiding support piece to extend downwards, the first drag chain is in an upper end arch shape, the downward extending part of the drag chain main body is the outlet, the first drag chain is provided with a line splitting frame at the inlet, the line splitting frame is in a fence shape and is divided into a plurality of inlet line channels, the line splitting frame comprises a frame and a plurality of partition plates, the plurality of partition plates are arranged in the channels of the frame side by side, the partition plates are provided with two sliding plates laterally, the frame is provided with a third chute extending along the arrangement direction of the, the sliding plate is connected with the third sliding groove in a sliding mode.

The utility model provides a three-dimensional five-axis 3D laser cutting machine, through setting up the workstation as the drive structure of lead screw guide rail and nut seat, it controls the displacement of workstation through the rotation of control driving motor, can accurate control displacement distance of workstation, and through set up first anticollision piece below the workstation, this first anticollision piece plays the effect of restriction workstation stroke, in order to prevent that the workstation from removing to the position that surpasss the laser cutting head, in order to protect the effect of laser cutting equipment base or other subassemblies, the laser cutting head passes through Y axle mounting bracket, Z axle mounting bracket, C axle pipeline and B axle pipeline, realize that the laser cutting head moves about in portal frame crossbeam direction, the lift of portal frame upper and lower direction, and pass through the axial rotation of C axle pipeline along perpendicular ground, and pass through the axial rotation of B axle pipeline along level and ground, the C-axis pipeline, the B-axis pipeline and the cutting head main body are connected through a right-angle joint, a reflector and a zoom lens component are arranged in the right-angle joint, the whole light path of the cutting head is shortened, the laser energy loss is reduced, the structure is compact on the whole, the C-axis pipeline and the B-axis pipeline are driven to rotate through connecting a hollow motor, the C-axis pipeline and the B-axis pipeline form a closed light beam channel, the whole sealing performance is good, a second anti-collision block is arranged on a cross beam and used for controlling the sliding stroke range of a Y-axis mounting frame, a third anti-collision block is arranged on the Y-axis mounting frame and used for controlling the sliding stroke range of the Z-axis mounting frame, a first tension sensor is arranged on the Y-axis mounting frame and used for limiting the moving distance of the Z-axis mounting frame provided with the cutting head main body in the vertical direction, and a first tension, first force sensor detects the pulling force that first extension spring received, and when the pulling force value exceeded the pulling force threshold value, first control module control second driving motor stall played the protection effect on a plurality of position adjustment directions, reduced the damage probability of laser cutting head, on the whole the utility model discloses a three-dimensional five-axis 3D laser cutting machine structure is compacter, and its multidimension angle control method algorithm is succinct more, has improved the control accuracy to protect the life of equipment extension equipment through setting up multiple protection.

Drawings

Fig. 1 is a schematic structural view of a first viewing angle of the present invention;

fig. 2 is a schematic structural view of a second viewing angle of the present invention;

FIG. 3 is a schematic view of the cutting head of the present invention;

FIG. 4 is a schematic view of another perspective of the cutting head of the present invention;

FIG. 5 is a schematic structural view of a nozzle;

FIG. 6 is a schematic view of the internal structure of the shaft tube C of the present invention;

FIG. 7 is a schematic view of the installation structure of the partition plate;

FIG. 8 is a schematic view of the mounting structure of the second right-angle joint and the B-axis pipeline;

FIG. 9 is a schematic structural view of the base and the worktable of the present invention;

FIG. 10 is a side view of the base and the worktable;

FIG. 11 is a schematic view of the internal structure of the base;

FIG. 12 is an enlarged view of the sliding seat shown in FIG. 11B;

FIG. 13 is an enlarged view of the table structure of FIG. 9A;

fig. 14 is a partial sectional view at fig. 9C.

Description of reference numerals:

a1, base; a2, a workbench; a3, a first crash block; a4, protecting the telescopic sleeve; a5, a second chute; a6, a roller; a7, lead screw guide rail; a8, nut seat; a9, a third driving motor; a10, a sliding guide rail; a11, a sliding seat; a12, a first sliding groove; a13, a slider; a14, a positioning block; a15, positioning convex edges; a16, telescopic pipe; a17, a supporting seat; a18, a guide plate; a19, a second sliding groove; a20, a tooling bar; a21, mounting gap; a22, a groove; b1, a portal frame; b2, Y-axis mounting rack; b3, a Z-axis mounting rack; b4, a beam; b5, a first driving motor; b6, a second crash block; b7, a second driving motor; b8, a third collision prevention block; b11, a laser generator; b13, cutting head body; b14, C-axis pipeline; b15, B-axis pipeline; b16, a first right-angle joint; b17, a second right-angle joint; b20, a first hollow motor; b21, a second hollow motor; b201, sealing sleeves; b211, an inner sleeve; b22, a first sealing ring; b23, a second sealing ring; b24, a joint mounting seat; b25, a circuit connector; b26, an air passage joint; b27, a first interface; b28, a second interface; b29, an electric control cabinet circuit; b30, cutting head line; b31, positioning arm; b32, annular positioning groove; b33, balls; b34, a second tension sensor; b35, a second control module; b36, a second tension spring; b37, a hoop; b38, a second positioning seat; b39, a second guide rail; b101, a first drag chain; b102, a guide support; b103, an inlet; b104, an outlet; b105, a branching frame; b106, a frame; b107, a partition plate; b108, a sliding plate; b109, a third chute; c11, a first mounting seat; c12, a first tension sensor; c13, a first control module; c14, a first tension spring; c15, connecting ropes; c16, a first positioning seat; c17, a first guide rail; c18, nozzle; c19, taper sleeve; c20, a spring element.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings, examples and effect examples, without limiting the present invention.

As shown in fig. 1 to 14, a three-dimensional five-axis 3D laser cutting machine comprises a base a1, a workbench a2, a mounting frame and a cutting head, wherein the workbench a2 is connected with the base a1 in a sliding manner, a driving device for driving the workbench a2 to slide in a single axis is arranged in the base a1, a first anti-collision block a3 is arranged on the base a1, the first anti-collision block a3 is a position proximity switch, the first anti-collision block a3 is used for detecting the moving position of the workbench a2, the installation position of the first anti-collision block a3 defines the sliding travel range of the workbench a2, the first anti-collision block a3 is coupled with the driving device, the driving device comprises a lead screw guide rail 7 arranged in the single axis sliding direction of the workbench a2, a nut seat a8 and a third driving motor a9 for driving the lead screw guide rail a7 to rotate, the nut seat a8 is in a7 threaded connection with the bottom surface of the lead screw guide rail a7, the nut seat 8 a2, the base a1 is provided with two symmetrically arranged sliding guide rails a10, the lower end surface of the workbench a2 is provided with a sliding seat a11, the sliding guide rail a10 is provided with a first sliding groove a12 on the side surface, the first anti-collision block a3 is used for checking the distance from the sliding seat a11, when the first anti-collision block a3 detects that the sliding seat a11 moves to the sensing distance, an electric signal is transmitted to the driving motor, and the driving motor is controlled to stop working, the mounting rack comprises a portal frame b1, a Y-axis mounting rack b2 and a Z-axis mounting rack b3, the portal frame b1 is provided with a cross beam b4, the cross beam b4 is vertically arranged in the horizontal plane with the sliding direction of the workbench a2, the Y-axis mounting rack b2 is slidably connected with the cross beam b4, the Z-axis mounting rack b7 is slidably connected with the Y-axis mounting rack b2, the first driving motor b1 is arranged on the portal frame b36 32, a second anti-collision block b6 is arranged on the cross beam b4, the second anti-collision block b6 is a position proximity switch, the second anti-collision block b6 is used for detecting the moving position of the Y-axis mounting frame b2, the mounting position of the second anti-collision block b6 defines the sliding travel range of the Y-axis mounting frame b2, the second anti-collision block b6 is coupled with the first driving motor b5, the Y-axis mounting frame b2 is provided with a second driving motor b7, the second driving motor b7 drives the Z-axis mounting frame b3 to slide in the vertical direction of the Y-axis mounting frame b2, the Y-axis mounting frame b2 is provided with a third anti-collision block b8, the third anti-collision block b8 is a position proximity switch, the third anti-collision block b8 is used for detecting the moving position of the Z-axis mounting frame b3, the mounting position of the third anti-collision block b8 defines the sliding travel range of the Z-axis 3, the third anti-collision block b8 is coupled with the second driving motor b7, the cutting head comprises a laser generator B11, a focusing optical assembly, a connecting pipeline assembly and a cutting head body B13, wherein the laser generator B11 is fixedly arranged on a Y-axis mounting frame B2, two ends of the connecting pipeline are respectively connected with a laser channel of the laser generator B11 and a cutting head body B13 to form a laser beam channel, the focusing optical assembly is arranged in the connecting pipeline, the connecting pipeline comprises a C-axis pipeline B14 rotatably arranged on a Z-axis mounting frame B3 and a B-axis pipeline B15 connected to the other end of the C-axis pipeline B14, a first right-angle joint B16 is arranged between the B-axis pipeline B15 and the C-axis pipeline B14, a B-axis pipeline B15 and the C-axis pipeline B14 are vertically arranged, a second right-angle joint B17 is arranged between the B-axis pipeline 15 and the cutting head body B13, the B-axis pipeline B15 and the cutting head body B13 are vertically arranged through a second right-angle joint B17, the second right-angle joint B17 is rotatably connected with a B-axis pipe B15, the laser cutting head moves left and right in the direction of a cross beam B4 of a portal frame B1 through a Y-axis mounting rack B2, a Z-axis mounting rack B3, a C-axis pipe B14 and a B-axis pipe B15, the portal frame B1 ascends and descends in the vertical direction, the portal frame B14 rotates along the axial direction vertical to the ground, the B-axis pipe B15 rotates along the axial direction horizontal to the ground, a reflector is arranged in the first right-angle joint B16, a zoom lens assembly is arranged in the second right-angle joint B17, a first hollow motor B20 is arranged on the Z-axis mounting rack B3, the first hollow motor B20 is connected with the C-axis pipe B14 and used for driving the C-axis pipe B14, the other end of the first hollow motor B20 is connected with a laser generator of a laser path B11, the first hollow motor B20 is hermetically connected with a C-axis pipe B14 and a laser generator, c central siphon way B14 includes sealing boot B201 and inner skleeve B211, sealing boot B201 cup joints in the inner skleeve B211 outside, this sealing boot B201 and mounting bracket fixed connection, inner skleeve B211 fixed connection first hollow motor B20 to rotate with the mounting bracket and be connected, sealing boot B201 one end fixed connection is on the mounting bracket, the sealing boot B201 other end and first right angle connector B16 sealing connection, sealing boot B201 both ends are provided with first sealing washer B22 and second sealing washer B23, be provided with second hollow motor B21 in B axle way B15, this second hollow motor B21 one end and B way B15 sealing connection, one end and second sealing connector B17 sealing connection in addition for driving second right angle connector B17 to rotate, laser generator B11 passageway, first hollow motor B20, inner skleeve B211, first right angle connector B16, C axle way 14, second hollow motor B21, The second right-angle joints b17 are sequentially connected in a sealing way to form a sealing channel,

the Y-axis mounting frame b2 is provided with a Z-axis protection mechanism, the Z-axis protection mechanism includes a first mounting seat c11, a first tension sensor c12 and a first control module c13, the first mounting seat c11 is fixedly arranged on the Y-axis mounting frame b2, the first tension sensor c12 is fixedly connected to the upper end of the first mounting seat c11, the first tension sensor c12 is provided with a first tension spring c14, the first tension spring c14 is connected with the Z-axis mounting frame b3, the first tension sensor c12 transmits a model number to the first control module c13, the first control module c13 transmits an electric signal to the second driving motor b7, a tension threshold value is set in the first control module c13, and when a detection value of the first tension sensor c12 is greater than the tension threshold value, the first control module c13 controls the second driving motor b7 to stop rotating.

As an improved specific embodiment, a connection rope c15 is provided between the first tension spring c14 and the Z-axis mounting bracket b3, the first mounting bracket c11 is provided with a first positioning seat c16 for positioning the connection rope c15, the connection rope c15 passes through the first positioning seat c16, the first tension spring c14 is connected with the connection rope c15, the first tension spring c14 is protected by providing a connection rope c15 to prevent the tension spring from being deformed due to overload and reduce the tension detection accuracy due to a long movement stroke of the Z-axis mounting bracket b3, the first mounting bracket c11 is provided with a first guide rail c17, the first positioning seat c16 is slidably connected with the first guide rail c17, the upper section of the connection rope c15 is fixed on the first positioning seat c16, one end of the first tension spring c14 is connected with the first positioning seat c16, and when the first positioning seat c16 slides to the first guide rail c17, the tension spring c14 exceeds the tension threshold value of the first tension spring 14, the first positioning seat c16 of the automatic control device plays a role of buffering and controls the second driving motor b7 to stop working before the distance between the nozzle c18 and the workbench a2 reaches a safety limit.

As a modified specific embodiment, the cutting head includes a nozzle c18, the nozzle c18 is used as a sensing electrode of a capacitance sensor, the nozzle c18 is made of metal material, preferably red copper, the nozzle c18 is connected with a capacitance sensor, the capacitance sensor is used for adjusting the distance between the nozzle c18 and a worktable a2, the worktable a2 arranged at the lower end is grounded, and the workpiece is in conductive contact with the worktable a2, the capacitance sensor is provided with a capacitance threshold value for setting the minimum distance between the nozzle c18 and the worktable a2, the capacitance sensor is coupled with a second driving motor b7, and when the capacitance sensor reaches the capacitance threshold value, the capacitance sensor controls the second driving motor b7 to stop rotating.

As an improved specific embodiment, the nozzle c18 is in the shape of a telescopic tapered sleeve c19, the nozzle c18 includes a plurality of tapered sleeves c19 with successively decreasing diameters, the tapered sleeves c19 are sleeved with each other, a spring element c20 is arranged between adjacent tapered sleeves c19, and when a third collision prevention block b8 or a first tension sensor c12 fails in a circuit feedback system, the nozzle c18 collides with the workbench a2 and then contracts, so that a buffering effect is achieved.

As an improved specific embodiment, protective telescopic sleeves a4 are arranged at two ends of the workbench a2 in the sliding direction, one end of each protective telescopic sleeve a4, which faces away from the workbench a2, is fixedly connected with two ends of the base a1 in the sliding direction relative to the workbench a2, the protective telescopic sleeves a4 cover the upper end face and part of the side face of the base a1, the protective telescopic sleeves a4 are made of soft corrugated sleeves, the side edge of the base a1 is provided with a second sliding chute a5, the lower end face of the protective telescopic sleeves a4 is provided with a plurality of rollers a6, the rollers a6 are accommodated in the second sliding chute a5 and are in sliding connection with the second sliding chute a5, and by arranging the protective telescopic sleeves a4, the base a1 is protected relative to the exposed place of the workbench a2, so that when a workpiece is machined, the crushed powder of the workpiece drops into the inside of the base a1 to affect the driving operation of the driving device, and meanwhile, the dust entering into the inner cavity of the base a1 is reduced, when the workbench a2 moves, the protective telescopic sleeve a4 extends and compresses, a relatively sealed working cavity is formed between the protective telescopic sleeve a4 and the base a1, the roller a6 is arranged on the protective telescopic sleeve a4, the protective telescopic sleeve a4 moves along with the protective telescopic sleeve a4 pulled by the workbench a2, the pulling of the protective telescopic sleeve a4 is reduced while the sealing performance of the working cavity is ensured, and the protective telescopic sleeve a4 is protected.

As an improved specific embodiment, the sliding seat a11 is slidably connected to the upper end surface of the sliding rail a10, and the sliding rail a10 extends downwards to form a sliding block a13 extending into the first sliding groove a12, the sliding seat a11 is provided with a positioning block a14 at the front and rear sides of the sliding direction, the positioning block a14 is provided with a positioning convex edge a15 extending into the first sliding groove a12, the positioning convex edge a15 slides in the first sliding groove a12, the depth of the positioning convex edge a15 extending into the first sliding groove a12 is greater than the depth of the sliding block a13 extending into the first sliding groove a12, and the first anti-collision block a3 is mounted at the side of the sliding rail a10, so that the sliding block is more convenient to assemble, and when the working platform a2 is moved by the positioning block a14, the sliding block is less prone to sway and has a positioning effect.

As an improved specific embodiment, the C shaft pipe B14 includes a sealing sleeve B201 and an inner sleeve B211, the sealing sleeve B201 is sleeved outside the inner sleeve B211, the sealing sleeve B201 is fixedly connected with a mounting bracket, the inner sleeve B211 is fixedly connected with a first hollow motor B20 and is rotatably connected with the mounting bracket, one end of the sealing sleeve B201 is fixedly connected with the mounting bracket, the other end of the sealing sleeve B201 is hermetically connected with a first right-angle joint B16, two ends of the sealing sleeve B201 are provided with a first sealing ring B22 and a second sealing ring B23, a second hollow motor B21 is arranged in the B shaft pipe B15, the second hollow motor B21 is connected with a second right-angle joint B17 and is used for driving a second right-angle joint B17 to rotate, through the arrangement of the sealing sleeve B201, the air leakage of the laser cutting head is prevented, a joint mounting seat B24 is arranged on the outer wall surface of the sealing sleeve B201, a circuit joint B25 and a gas circuit joint B685, the circuit connector B25 and the circuit connector B26 are both provided with a first connector B27 and a second connector B28, the first connector B27 and the second connector B28 are respectively connected with an electric control cabinet circuit B29 and a cutting head circuit B30, the electric control cabinet circuit B29 is connected with an electric control cabinet and a first connector B27, the cutting head circuit B30 is connected with a second connector B28 and a cutting head body B13, and a connector mounting seat B24 is arranged on the outer side wall of the sealing sleeve B201 to prevent the electric control cabinet circuit B29 from winding when the shaft C rotates and the shaft B rotates.

As an improved specific embodiment, the sealing sleeve b201 is provided with a first protection mechanism for preventing the second right-angle joint b17 from being oversteered to cause overwinding, the first protection mechanism comprises a second tension sensor b34 and a second control module b35, the second tension sensor b34 is provided with a second tension spring b36, the second tension sensor b34 detects the tension of a second tension spring b36, the cutting head line b30 is provided with a hoop b37 fixed on the outer circumferential wall thereof, the hoop b37 fixedly surrounds the cutting head line b30, the second tension spring b36 is connected with the hoop b37, the second tension sensor b34 transmits a signal to the second control module b35, the second control module b35 transmits an electric signal to a second hollow motor b21, the second control module b35 is provided with a tension threshold value, and when the detection value of the second tension sensor b34 is greater than the threshold value, the second control module b35 controls the second tension motor b21 to stop the rotation, by arranging a protection mechanism, when a control program or a worker makes an error, the second right-angle joint b17 is prevented from over-steering to cause poor contact or air leakage of the line, after the second right-angle joint b17 rotates, the cutting line rotates along with the rotation, the cutting line pulls the second tension spring b36 of the second tension sensor b34 during rotation, after the second tension sensor b34 senses a certain value of tension, a signal is transmitted to the second control module b35, the second control module b35 judges the tension value and the set tension threshold value, and then the second hollow motor b21 is controlled to play a protection role, the first protection mechanism further comprises a second mounting seat and a second positioning seat b38 for fixing the cutting head line b30, the second mounting seat is provided with a second guide rail b39, the second positioning seat b38 is in sliding connection with the second guide rail b39, the hoop b37 is fixed on the second positioning seat b38, the hoop b37 is preferably arranged at a section of the cutting head line b30 close to the second port b28, one end of the second tension spring b36 is connected with a second positioning seat b38, through the arrangement of the second positioning seat b38, when the second right-angle joint b17 rotates to drive the cutting head line b30 to wind, the second positioning seat b38 winds, displaces and slides along with the cutting head line b30, when the second positioning seat b38 slides to the middle section of the second guide rail b39, the tension applied to the second tension spring b36 exceeds a threshold value, the second positioning seat b38 plays a role in buffering, and the second hollow motor b21 is controlled to stop working before the cutting head line b30 is subjected to the maximum bearable tension.

As an improved specific embodiment, the second right-angle joint B17 includes a positioning arm B31, the positioning arm B31 is disposed on the outer peripheral wall of the B-axis pipe B15 and is rotatably connected with the outer peripheral wall of the B-axis pipe B15, the positioning arm B31 is disposed opposite to the side of the second right-angle joint B17 facing away from the cutting head body, the outer peripheral wall of the B-axis pipe B15 is provided with a plurality of annular positioning grooves B32, a plurality of annular positioning grooves B32 are arranged in parallel, the positioning arm B31 is provided with a plurality of balls B33 matching with the plurality of annular positioning grooves B32, a plurality of balls B33 are abutted against and rolled against the groove wall of the annular positioning groove B32, by disposing a positioning arm B31, when the second right-angle joint B17 is rotated, the positioning arm B31 is constantly supported against the outer wall of the B15, when the second right-angle joint B17 is rotated, the weight of the cutting head body B13 itself can counteract the force of the second right-angle joint B17, so that the second right-angle connector B17 can be kept stable when rotating, and simultaneously, the sealing connection between the second hollow motor B21 and the second right-angle connector B17 in the B-axle pipeline B15 is ensured.

As an improved specific embodiment, a bracket for placing a line is arranged at the side of the workbench a2, a support assembly for lifting the bracket is arranged on the base a1, the bracket comprises an extension tube a16 in a covering shape, the extension tube a16 is an extension tube a16 capable of being deformed and bent, the support assembly comprises a plurality of supporting seats a17 horizontally arranged at the side of the base a1 and a guide plate a18 fixed on the supporting seats a17, the guide plate a18 is provided with a second sliding groove a19 for accommodating the extension tube a16, when the extension tube a16 is pulled, the extension tube a16 slides in the second sliding groove a19, the bracket is arranged to arrange and store the optical cables and the electric wires arranged on the workbench a2, the bracket is arranged in the form of the extension tube a16, so that the bracket can drive the optical cables and the electric wires to move when the workbench a2 translates, and the support assembly is arranged, the flexible pipe a16 that is soft and deformable is lifted, plays the supporting effect to avoid optical cable and electric wire to hang down on ground when overweight, take place the friction with ground, in addition through being provided with deflector a18 with the supporting component, its deflector a18 is preferred to be smooth-shaped in the surface, makes the bracket can smooth and easy the slip on deflector a 18.

As a modified specific embodiment, a first towline b101 is arranged on the Y-axis mounting frame b2, the first towline b101 is a deformable bellows, a containing cavity is arranged in the bellows for passing through an electric control cabinet circuit b29, the containing cavity comprises an inlet b103 and an outlet b104, the mounting frame is provided with a guide support b102, the guide support b102 is used for abutting against the first towline b101, the first towline b101 is arranged in a U shape, one end of the first towline b101 extends downwards by bypassing the guide support b102, the first towline b101 is in an upper-end arch shape, the downward extension part of the main body of the first towline is the outlet b104, the inlet b103 of the first towline b101 is provided with a branching frame b105, the branching frame b105 is divided into a plurality of inlet passages in a fence shape, the branching frame b105 comprises a frame 106 b and a plurality of dividing plates b107, a plurality of dividing plates b107 are arranged side by side in the passages of the frame b106, division board b107 side is provided with two slide blocks b108, frame b106 is provided with along the third spout b109 that division board b107 array orientation extends, slide block b108 and third spout b109 sliding connection, its first tow chain b101 protects electrical control cabinet circuit b29 when Y axle mount frame b2 and Z axle mount frame b3 remove, play the effect of arrangement protection circuit, through setting up branch frame b105, can classify the circuit, it is more convenient when the staff maintains, further through setting up branch board with branch frame b105 into adjustable structure, behind the categorised different circuit, according to the volume of different circuits, adjust the width of inlet wire passageway.

As an improved specific embodiment, a plurality of tool bars a20 arranged in parallel are arranged on the upper end surface of the workbench a2, a plurality of tool bars a20 are hollow tube bars, a mounting gap a21 is formed between the plurality of tool bars a20, a groove a22 is arranged on the side surface of the tool bar a20 corresponding to the mounting gap a21, a mounting guide groove is formed by the groove a22 of two adjacent tool bars a20 and the mounting gap a21 penetrating through the groove a22, the mounting guide groove is used for fixing a workpiece, the plurality of tool bars a20 are arranged on the upper end surface of the workbench a2 for placing the workpiece, and the workpieces with different shapes and sizes can be fixedly mounted on the workbench a2 through the mounting guide grooves arranged in parallel, and the mounting position can be adjusted according to the specification of the workpiece.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a three-dimensional five 3D laser cutting machine which characterized in that: the device comprises a base (a1), a workbench (a2), a mounting frame and a cutting head, wherein the workbench (a2) is connected with the base (a1) in a sliding manner, a driving device for driving the workbench (a2) to slide along a single shaft is arranged in the base (a1), a first anti-collision block (a3) is arranged on the base (a1), the first anti-collision block (a3) is a position proximity switch, the first anti-collision block (a3) is used for detecting the moving position of the workbench (a2), the mounting position of the first anti-collision block (a3) defines the sliding travel range of the workbench (a2), the first anti-collision block (a3) is coupled with the driving device, the mounting frame comprises a portal frame (b1), a Y-axis mounting frame (b2) and a Z-axis mounting frame (b3), the portal frame (b1) is provided with a cross beam (b4), and the cross beam (b4) and the work table (a) are arranged in a2) in a horizontal sliding plane in a horizontal direction, the Y-axis mounting rack (b2) is connected with the cross beam (b4) in a sliding mode, the Z-axis mounting rack (b3) is connected with the cross beam (b2) in a sliding mode in the vertical direction, the portal frame (b1) is provided with a first driving motor (b5), the first driving motor (b5) drives the Y-axis mounting rack (b2) to slide on the cross beam (b4), the cross beam (b4) is provided with a second anti-collision block (b6), the second anti-collision block (b6) is a position proximity switch, the second anti-collision block (b6) is used for detecting the moving position of the Y-axis mounting rack (b2), the mounting position of the second anti-collision block (b6) limits the sliding travel range of the Y-axis mounting rack (b2), the second anti-collision block (b6) is coupled with the first driving motor (b5), the Y-axis (b2) is provided with a second driving motor (b24), the second driving motor (b7) is coupled with the mounting rack (b 599) in the vertical direction of the Y-axis mounting rack (b7), the Y-axis mounting rack (b2) is provided with a third collision block (b8), the third collision block (b8) is a position proximity switch, the third collision block (b8) is used for detecting the moving position of the Z-axis mounting rack (b3), the mounting position of the third collision block (b8) limits the sliding travel range of the Z-axis mounting rack (b3), the third collision block (b8) is coupled with a second driving motor (b7), the cutting head comprises a laser generator (b11), a focusing optical assembly (b12), a connecting pipeline assembly and a cutting head body (b13), the laser generator (b11) is fixedly arranged on the Y-axis mounting rack (b2), two ends of the connecting pipeline are respectively connected with a laser channel of the laser generator (b11) and the cutting head body (b13) to form a laser beam channel, the focusing optical assembly (b12) is arranged in the connecting pipeline, the connecting pipeline comprises a C-axis pipeline (B14) rotatably arranged on a Z-axis mounting rack (B3) and a B-axis pipeline (B15) connected to the other end of the C-axis pipeline (B14), a first right-angle joint (B16) is arranged between the B-axis pipeline (B15) and the C-axis pipeline (B14), the B-axis pipeline (B15) and the C-axis pipeline (B14) are vertically arranged, a second right-angle joint (B17) is arranged between the B-axis pipeline (B15) and a cutting head main body (B13), the B-axis pipeline (B15) and the cutting head main body (B13) are vertically arranged through a second right-angle joint (B17), the second right-angle joint (B17) is rotatably connected with the B-axis pipeline (B15), a reflecting mirror is arranged in the first right-angle joint (B16), a zoom mirror assembly is arranged in the second hollow right-angle joint (B17), and a first motor (B20) is arranged on a Z-axis (B3), the first hollow motor (b20) is connected with the C-axis pipeline (b14) and is used for driving the C-axis pipeline (b14),

the Y-axis mounting rack (b2) is provided with a Z-axis protection mechanism which comprises a first mounting seat (c11), a first tension sensor (c12) and a first control module (c13), the first mounting seat (c11) is fixedly arranged on the Y-axis mounting frame (b2), the first tension sensor (c12) is fixedly connected to the upper end of the first mounting seat (c11), the first tension sensor (c12) is provided with a first tension spring (c14), the first tension spring (c14) is connected with the Z-axis mounting rack (b3), the first tension sensor (c12) transmits the model number to the first control module (c13), the first control module (c13) transmits an electric signal to the second driving motor (b7), the first control module (c13) sets a tension threshold value, and when the detection value of the first tension sensor (c12) is larger than the tension threshold value, the first control module (c13) controls the second driving motor (b7) to stop rotating.

2. The three-dimensional five-axis 3D laser cutting machine according to claim 1, characterized in that a connecting rope (c15) is arranged between the first tension spring (c14) and the Z-axis mounting rack (b3), the first mounting rack (c11) is provided with a first positioning seat (c16) for positioning the connecting rope (c15), the first tension spring (c14) is connected with the connecting rope (c15), the first mounting rack (c11) is provided with a first guide rail (c17), the first positioning seat (c16) is connected with the first guide rail (c17) in a sliding manner, the upper section of the connecting rope (c15) is fixed on the first positioning seat (c16), and one end of the first tension spring (c14) is connected with the first positioning seat (c 16).

3. The three-dimensional five-axis 3D laser cutting machine according to claim 1, characterized in that the cutting head body (b13) comprises a nozzle (c18), the nozzle (c18) is used as a sensing pole of a capacitance sensor, a capacitance sensor is connected with the nozzle (c18) and used for adjusting the distance between the nozzle (c18) and the worktable (a2), the capacitance sensor is provided with a capacitance threshold value for setting the minimum distance between the nozzle (c18) and the worktable (a2), the capacitance sensor is coupled with a second driving motor (b7), and when the capacitance sensor reaches the capacitance threshold value, the capacitance sensor controls the second driving motor (b7) to stop rotating.

4. The three-dimensional five-axis 3D laser cutting machine according to claim 3, characterized in that the nozzle (c18) is in the shape of a telescopic tapered sleeve (c19), the nozzle (c18) comprises a plurality of tapered sleeves (c19) with successively decreasing diameters, the tapered sleeves (c19) are sleeved with each other, and a spring member (c20) is arranged between the adjacent tapered sleeves (c 19).

5. The three-dimensional five-axis 3D laser cutting machine according to claim 2, characterized in that protective telescopic sleeves (a4) are arranged at two ends of the workbench (a2) in the sliding direction, one end of each protective telescopic sleeve (a4) back to the workbench (a2) is fixedly connected with two ends of the base (a1) in the sliding direction relative to the workbench (a2), the protective telescopic sleeves (a4) cover the upper end face and part of the side face of the base (a1), the protective telescopic sleeves (a4) are made of soft corrugated sleeves, the side edges of the base (a1) are provided with the second sliding groove (a5), the lower end face of each protective telescopic sleeve (a4) is provided with a plurality of rollers (a6), and the rollers (a6) are accommodated in the second sliding groove (a5) and are connected with the second sliding groove (a5) in a sliding manner.

6. The three-dimensional five-axis 3D laser cutting machine according to claim 1, characterized in that the driving device comprises a screw rod guide rail (a7) arranged along a single-axis sliding direction of the workbench (a2), a nut seat (a8) and a third driving motor (a9) for driving the screw rod guide rail (a7) to rotate, the nut seat (a8) is in threaded connection with the screw rod guide rail (a7), the nut seat (a8) is fixed on a lower bottom surface of the workbench (a2), two sliding guide rails (a10) are symmetrically arranged on the base (a1), the lower end surface of the workbench (a2) is provided with the sliding seat (a11), the sliding guide rail (a10) is provided with a first sliding groove (a12) on a side surface, the sliding seat (a11) is slidably connected on an upper end surface of the sliding guide rail (a10), and the sliding guide rail (a10) extends downwards to form a sliding block (13) extending into the first sliding groove (a12), the front side and the rear side of the sliding seat (a11) in the sliding direction are provided with positioning blocks (a14), the positioning blocks (a14) are provided with positioning convex edges (a15) extending into the first sliding grooves (a12), the positioning convex edges (a15) slide in the first sliding grooves (a12), and the depth of the positioning convex edges (a15) extending into the first sliding grooves (a12) is larger than the depth of the sliding blocks (a13) extending into the first sliding grooves (a 12).

7. The three-dimensional five-axis 3D laser cutting machine according to claim 1, wherein the C-axis pipeline (B14) comprises a sealing sleeve (B201) and an inner sleeve (B211), the sealing sleeve (B201) is sleeved outside the inner sleeve (B211), the sealing sleeve (B201) is fixedly connected with a mounting frame, the inner sleeve (B211) is fixedly connected with a first hollow motor (B20) and is rotatably connected with the mounting frame, one end of the sealing sleeve (B201) is fixedly connected with the mounting frame, the other end of the sealing sleeve (B201) is hermetically connected with a first right-angle joint (B16), a first sealing ring (B22) and a second sealing ring (B23) are arranged at two ends of the sealing sleeve (B201), a second hollow motor (B21) is arranged in the B-axis pipeline (B15), the second hollow motor (B21) is connected with a second right-angle joint (B17) and is used for driving the second right-angle joint (B17) to rotate, the outer wall surface of the sealing sleeve (b201) is provided with a joint mounting seat (b24), a circuit joint (b25) and a circuit joint (b26) are arranged on the joint mounting seat (b24), the circuit joint (b25) and the circuit joint (b26) are provided with a first interface (b27) and a second interface (b28), and the first interface (b27) and the second interface (b28) are respectively connected with an electric control cabinet circuit (b29) and a cutting head circuit (b 30).

8. The three-dimensional five-axis 3D laser cutting machine according to claim 7, characterized in that the sealing sleeve (b201) is provided with a first protection mechanism for preventing the second right-angle joint (b17) from being oversteered to cause overwinding, the first protection mechanism comprises a second tension sensor (b34) and a second control module (b35), the second tension sensor (b34) is provided with a second tension spring (b36), the cutting head line (b30) is provided with a hoop (b37) fixed on the outer peripheral wall of the cutting head line, the second tension spring (b36) is connected with the hoop (b37), the second tension sensor (b34) transmits a signal to the second control module (b35), the second control module (b35) transmits an electric signal to the second hollow motor (b21), the second control module (b35) is set with a tension threshold value, and when the detection value of the second tension sensor (b34) is greater than the tension threshold value, second control module (b35) control second hollow motor (b21) stop rotation, first protection mechanism is still including second mount pad and second positioning seat (b38) that are used for fixed cutting head circuit (b30), be provided with second guide rail (b39) on the second mount pad, second positioning seat (b38) and second guide rail (b39) sliding connection, hoop (b37) are fixed on second positioning seat (b38), second positioning seat (b38) is connected to second extension spring (b36) one end.

9. The three-dimensional five-axis 3D laser cutting machine according to claim 1, characterized in that a bracket for placing a line is arranged on the side of the workbench (a2), a support assembly for lifting the bracket is arranged on the base (a1), the bracket comprises an extension tube (a16) in a covering shape, the extension tube (a16) is a deformable and bendable extension tube (a16), the support assembly comprises a plurality of support seats (a17) horizontally arranged on the side of the base (a1) and a guide plate (a18) fixed on the support seats (a17), the guide plate (a18) is provided with a second sliding groove (a19) for accommodating the extension tube (a16), and the extension tube (a16) slides in the second sliding groove (a19) when being pulled.

10. The three-dimensional five-axis 3D laser cutting machine according to claim 1, characterized in that a first drag chain (b101) is arranged on the Y-axis mounting rack (b2), the first drag chain (b101) is a deformable corrugated pipe, a containing cavity is arranged in the corrugated pipe, the containing cavity is used for an electric control cabinet circuit (b29) to pass through, the containing cavity comprises an inlet (b103) and an outlet (b104), the mounting rack is provided with a guide support (b102), the guide support (b102) is used for interfering with the first drag chain (b101), the first drag chain (b101) is U-shaped, one end of the first drag chain (b101) extends downwards around the guide support (b102), the first drag chain (b101) is arched, the downward extension part of the first drag chain (b101) is the outlet (b104), the first drag chain (b101) is provided with a wire splitting frame (b105) at the inlet (b103), the wire splitting frame (b105) is divided into a plurality of wire inlet channels, the wire separating frame (b105) comprises a frame (b106) and a plurality of separating plates (b107), the separating plates (b107) are arranged in a channel of the frame (b106) side by side, two sliding plates (b108) are arranged on the side of each separating plate (b107), the frame (b106) is provided with a third sliding groove (b109) extending along the arrangement direction of the separating plates (b107), and the sliding plates (b108) are connected with the third sliding grooves (b109) in a sliding mode.