CN113814576A

CN113814576A - Automatic laser cutting machine

Info

Publication number: CN113814576A
Application number: CN202111113647.1A
Authority: CN
Inventors: 吕时广; 金红英; 陈勇良; 王灵英; 叶建林; 郑群强; 张天伟; 王静
Original assignee: Zhejiang Jinaolan Machine Tool Co ltd
Current assignee: Zhejiang Jinaolan Machine Tool Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2021-12-21

Abstract

The invention discloses an automatic laser cutting machine which comprises a base, a three-coordinate walking part and a laser head, wherein the laser head is arranged on the three-coordinate walking part, the three-coordinate walking part is arranged on the base and is used for driving the laser head to move on an X axis, a Y axis and a Z axis, and a light pollution prevention device is further arranged on the laser head. When the laser works, the invention automatically shields the scattered strong light, prevents the strong light from entering human eyes to cause damage to the human eyes, protects the health of personnel around the machine of the operator, enables the operator to better observe the cutting condition and improves the use safety of equipment.

Description

Automatic laser cutting machine

Technical Field

The invention relates to the technical field of laser cutting machines, in particular to an automatic laser cutting machine.

Background

The laser cutting machine is very common in daily plate processing, the rapid and accurate plate cutting capability of the laser cutting machine is uniformly praised by users, the laser is used as a cutting main body, and due to certain reflection capability of the plate, when the laser is used for cutting, part of the laser is reflected outwards when acting on the plate, and the plate is melted through when being cut, so strong bright light is also generated, and when the laser equipment is normally operated, light beams scattered out are very dazzling and can cause serious injury to eyes.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an automatic laser cutting machine.

In order to solve the technical problems, the invention is solved by the following technical scheme: automatic laser cutting machine, including base, three-dimensional walking portion and laser head, the laser head sets up on three-dimensional walking portion, and three-dimensional walking portion sets up on the base, and it is used for driving the laser head at X axle, Y axle and Z axle motion, still be provided with the light pollution prevention device on the laser head, and it includes dustcoat frame, reservoir, bimetallic strip and double-deck transparent shielding piece, the frame notch has been seted up on the dustcoat frame upper side wall, and the inside cavity that is provided with of lateral wall, be provided with the clearance in the middle of the double-deck transparent shielding piece, the reservoir sets up on the frame notch, and its liquid outlet communicates with the clearance in the middle of the double-deck transparent shielding piece, the reservoir sets up for elastic material, receives extrusion ability deformation, and pressure disappearance ability automatic recovery, and its inside is provided with the solution that the luminousness is low, the bimetallic strip sets up in dustcoat frame bottom, and is located the side of reservoir, the housing frame is disposed on the laser head.

Its beneficial effect lies in, when laser begins work, can produce higher heat, thereby make bimetallic strip deformation not extrude the reservoir, make its inside low luminousness solution enter into the clearance in the middle of the transparent shielding of double-deck, thereby make the transparent shielding of double-deck become opaque, make light not diffuse out, and after work is accomplished, the laser head rises, the temperature reduces, bimetallic strip resumes initial condition, thereby the reservoir resumes initial condition, thereby in retrieving the reservoir with low luminousness solution, and it receives the control of bimetallic strip, it can not take place deformation when not having the high temperature, consequently laser can not influence operator's sight when beginning the tool setting.

In the above scheme, preferred, light pollution prevention device still includes elastic sleeve, and its one end sets up the bottom at the laser head, and the other end sets up the upper end at the dustcoat frame, and both cooperate the setting to shelter from the laser emission point on the laser head.

The laser head cutting device has the beneficial effects that the laser head of the plate material with different thicknesses and materials is different from the plate material in height, so that the laser head is set to be adaptive to cutting different plate materials.

In the above scheme, preferably, the elastic sleeve is designed to be an opaque heat-resistant rubber elastic corrugated pipe, and the bottom end of the outer cover frame is provided with rolling steel balls, so that the bottom end of the bimetallic strip is arranged on the bottom surface of the cavity, and the outer cover frame is designed to be a heat conducting material.

The double-metal-sheet-type laser device has the beneficial effects that the heat generated by the sheet material is conveniently transferred to the double metal sheets, and the outer cover frame and the sheet material are in rolling friction, so that the friction is reduced, and the laser device can stably run.

In the above scheme, preferably, the dustcoat frame is cylindrical in design, and has seted up 1 frame notch at least, all is provided with double-deck transparent shielding piece on every frame notch, and the clearance between every double-deck transparent shielding piece all communicates each other.

In the above scheme, preferably, at least one group of liquid storage bags and bimetallic strip combination is arranged below each double-layer transparent shielding piece.

The double-metal-sheet light shading device has the beneficial effects that only one double metal sheet is deformed by heating, and the light shading effect can be achieved.

In the above scheme, preferably, at least 4 groups of liquid storage bag and bimetallic strip combinations are uniformly distributed on the outer cover frame.

The double-metal-sheet-type heat sensing device has the beneficial effects that the heat can be better sensed, so that the double metal sheets are deformed.

In the above aspect, preferably, the lowest point of the cover frame is lower than the lowest point of the laser head in the initial state.

The shading device has the beneficial effects that the bottom end of the outer cover frame is in contact with the surface of a plate, so that shading operation is better carried out.

The invention has the beneficial effects that: when the laser works, the invention automatically shields the scattered strong light, prevents the strong light from entering human eyes to cause damage to the human eyes, protects the health of personnel around the machine of the operator, enables the operator to better observe the cutting condition and improves the use safety of equipment.

Drawings

FIG. 1 is a schematic view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

FIG. 3 is a partial schematic view of the present invention.

FIG. 4 is a schematic view of a cleaning device according to the present invention.

Fig. 5 is a schematic view of the combination of the spraying device and the tightening and resetting device of the invention.

FIG. 6 is a schematic view of the spray coating device of the present invention.

FIG. 7 is a schematic view of the internal components of the spray coating device of the present invention.

Fig. 8 is a partial cross-sectional view of a spray coating device of the present invention.

Fig. 9 is a partial cross-sectional view of the applicator of the present invention.

FIG. 10 is a schematic view of the tightening and resetting device of the present invention.

FIG. 11 is a schematic view of the reverse internal components of the spray coating device of the present invention.

FIG. 12 is a schematic view of the device for preventing light pollution according to the present invention.

FIG. 13 is a cross-sectional view of the light pollution preventing device of the present invention.

FIG. 14 is a partial enlarged view of the light pollution preventing device of the present invention.

Detailed Description

Example 1:

the invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to figures 1-2 and 12-14,

an automatic laser cutting machine comprises a base 1, a three-coordinate walking part 2, a laser head 3 and a light pollution prevention device 6, wherein the laser head 3 is arranged on the three-coordinate walking part 2, the three-coordinate walking part 2 is arranged on the base 1 and is used for driving the laser head 3 to move on an X axis, a Y axis and a Z axis, the light pollution prevention device 6 is arranged on the laser head 3 and is used for shielding strong light generated during laser work, the light pollution prevention device comprises an outer cover frame 61, a liquid storage bag 62, a bimetallic strip 63, a double-layer transparent shielding piece 64, a rolling steel ball 66 and an elastic sleeve 65, the elastic sleeve 65 is designed to be an opaque rubber elastic corrugated pipe and can be compressed under pressure, when the pressure disappears, the elastic sleeve 65 automatically resets, one end of the elastic sleeve is arranged on the plane at the bottom end of the laser head 3, the other end of the elastic sleeve is provided with an outer cover frame 61, the outer cover frame 61 is designed to be a cylindrical sleeve, and the side surface of the outer cover frame is provided with at least one frame notch 611, and the side wall is internally provided with a plurality of cavities 612, each frame notch 611 is provided with a double-layer transparent shielding piece 64, a gap is arranged in the middle of each double-layer transparent shielding piece 64, the bottoms of the gaps between the double-layer transparent shielding pieces 64 are communicated with each other, the liquid storage bag 62 is arranged in the cavity 612 and is communicated with the gap in the middle of each double-layer transparent shielding piece 64, the liquid storage bag 62 is internally provided with a solution with low light transmittance, the liquid storage bag 62 is made of an elastic material and is deformed by pressure, so that the inner space is reduced, the solution with low light transmittance enters the gap in the middle of each double-layer transparent shielding piece 64, when the pressure disappears, the liquid storage bag 62 can automatically recover, the solution with low light transmittance returns to the liquid storage bag 62, the bottom surface of the cavity 612 is provided with a bimetallic strip 63 which is positioned on the side surface of the liquid storage bag 62, and when the temperature reaches a fixed value, the bimetallic strip 63 can be bent and deformed, thereby extrude the liquid storage bag 62, when the temperature is lower than the certain value, can automatic re-setting again, the bottom of the outer cover frame 61 rolls and is provided with the rolling steel ball 66, and the outer cover frame 61 is the heat conduction material design, and the minimum point of rolling steel ball 66 is lower than the minimum point of laser head 3 under the initial condition.

When the laser starts to set the tool, no heat is generated because the laser does not work, and the bimetallic strip 63 deforms, so that the double-layer transparent shielding piece 64 is transparent, and the sight of an operator can well see through the double-layer transparent shielding piece 64 to observe the position of the laser head.

When the laser equipment starts to work, the laser head 3 descends by a certain height, at the moment, the rolling steel balls 66 on the outer cover frame 61 at the bottom of the laser head are abutted against the plate, no gap exists between the plate and the plate, the laser cutting plate is actually focused on a light spot, and then the plate on the spot is melted, so a large amount of heat can be generated, at the moment, the rolling steel balls 66 are abutted against the periphery of the melted plate, so that the heat on the plate can be well collected and transferred to the outer cover frame 61, the bimetallic strip 63 in the plate is deformed, the liquid storage bag 62 is pressed and contacted, the liquid storage bag 62 is deformed, the space in the liquid storage bag is reduced, the solution with low light transmittance in the liquid storage bag is extruded into a gap in the middle of the double-layer transparent shielding piece 64, the double-layer transparent shielding piece 64 becomes opaque, and strong light generated by internal laser is shielded and cannot penetrate through the double-layer transparent shielding piece 64.

After the laser operation is completed, the laser head is lifted upwards, the rolling steel balls 66 are separated from the surface of the plate, the heat on the plate is not conducted to the rolling steel balls 66, so that the temperature of the outer cover frame 61 is rapidly reduced, the bimetallic strip 63 is restored to the initial state, the pressure contact between the bimetallic strip 63 and the liquid storage bag 62 is eliminated, the liquid storage bag 62 is restored to the initial state, the internal space is also restored to the initial state, the solution with low light transmittance in the gap between the double-layer transparent shielding piece 64 returns to the liquid storage bag 62, and the double-layer transparent shielding piece 64 is restored to the transparent state again.

The working principle or the using method is as follows:

Example 2:

the invention is described in further detail below with reference to the following detailed description and accompanying drawings: with reference to figures 1-14 of the drawings,

automatic change laser cutting machine, including base 1, three-dimensional walking portion 2, laser head 3, bearing part 4, closing device 5, light pollution prevention device 6, spraying device 7, school tight resetting means 8, dustcoat frame 61, laser head 3 sets up on three-dimensional walking portion 2, three-dimensional walking portion 2 sets up on base 1, and it is used for driving laser head 3 at X axle, Y axle and Z axle motion, and light pollution prevention device 6 sets up on laser head 3 for shelter from the highlight that the laser during operation produced, spraying device 7 sets up on laser head 3, and school tight resetting means 8 sets up on base 1, and spraying device 7 sets up with the cooperation of school tight resetting means 8.

The light pollution prevention device 6 comprises an outer cover frame 61, a liquid storage bag 62, a bimetallic strip 63, a double-layer transparent shielding piece 64, a rolling steel ball 66 and an elastic sleeve 65, wherein the elastic sleeve 65 is an opaque rubber elastic corrugated pipe design and can be compressed under pressure, the elastic sleeve can automatically reset when the pressure disappears, one end of the elastic sleeve is arranged on the plane of the bottom end of the laser head 3, the outer cover frame 61 is arranged at the other end of the elastic sleeve, the outer cover frame 61 is a cylindrical sleeve design, the side surface of the outer cover frame is provided with at least one frame notch 611, the side wall of the outer cover frame is internally provided with a plurality of cavities 612, each frame notch 611 is provided with the double-layer transparent shielding piece 64, a gap is arranged in the middle of each double-layer transparent shielding piece 64, the bottoms of the gaps between the double-layer transparent shielding pieces 64 are mutually communicated, the liquid storage bag 62 is arranged in the cavities 612 and is communicated with the gap in the middle of the double-layer transparent shielding pieces 64, the inner part of the outer cover frame 61 is provided with a solution with low light transmittance, the liquid storage bag 62 is designed by an elastic material and is deformed by pressure, so that the inner space is reduced, the solution with low light transmittance enters a gap in the middle of the double-layer transparent shielding piece 64, the liquid storage bag 62 can automatically recover when the pressure disappears, the solution with low light transmittance returns to the liquid storage bag 62, the bottom surface of the cavity 612 is provided with a bimetallic strip 63 which is positioned on the side surface of the liquid storage bag 62, when the temperature reaches a fixed value, the bimetallic strip 63 can be bent and deformed to extrude the liquid storage bag 62, and can automatically reset when the temperature is lower than the fixed value, the bottom end of the outer cover frame 61 is provided with rolling steel balls 66 in a rolling manner, the outer cover frame 61 is designed by a heat conduction material, and the lowest point of the rolling steel balls 66 in an initial state is lower than the lowest point of the laser head 3.

The spraying device 7 comprises a syringe device 71, a dye tube 74, a pressurizing device 72 and a locking device 73, wherein an injection port 75 and a control device 76 are arranged on the outer cover frame 61, the syringe device 71 comprises a piston block 711, a syringe 712, a syringe elastic member 714, a sliding pressure contact block 715 and a syringe derivative plate 718, dye is filled in the syringe 712, the syringe device 71 is arranged on the side surface of the laser head 3 through the syringe 712 and is provided with a plurality of groups of syringe devices 71, a piston hole 717 and a pressure contact block hole 716 are formed in the syringe 712, the diameter of the piston hole 717 is larger than that of the pressure contact block hole 716, the piston block 711 is arranged in the piston hole 717 in a sliding manner, a discharge hole 713 is formed at the bottom of the piston hole 717, dye is filled between the piston block 711 and the discharge hole 713, the syringe elastic member 714 is pressed on the back of the piston block 711, and the sliding pressure contact block 715 is pressed on the other end of the syringe elastic member 714, and its limit is slidably disposed in the press-contact block hole 716.

Wherein in an initial state, i.e., when barrel 712 is filled with dye, piston block 711 is in compression contact with the interface of piston bore 717 and compression contact block bore 716, and barrel resilient member 714 is in a relaxed state and is not in compression contact.

The injection port 75 is arranged at the bottom of the housing frame 61, an injection channel 751 is arranged in the injection port 75, the lowest point of the injection channel 751 is higher than the lowest point of the rolling steel ball 66, so that the injection channel 751 cannot directly touch the plate, the injection channel 751 is communicated with the discharge port 713 through the dye tube 74, a control device 76 is arranged on the injection channel 751, the control device 76 comprises a blocking slide 761, a blocking elastic member 762 and a blocking slide 763, the blocking slide 761 is slidably arranged in the blocking slide 763, the blocking slide 763 passes through the injection channel 751 of the injection port 75, a through hole 765 is arranged in the middle of the blocking slide 761, a press rod 764 is outwards derived, and due to the fact that the bimetallic strip 63 is arranged in the housing frame 61, when the temperature exceeds a set value, the bimetallic strip 63 deforms to press the reservoir 62 and simultaneously press the press rod 764,

the blocking slider 761 is slid inward to communicate with the spray channel 751 through the through hole 765, and the dye may act on the panel through the spray channel 751.

When the laser starts working, the temperature rises, the bimetallic strip 63 deforms and is in press contact with the press contact rod 764, so that the blocking slide block 761 slides inwards, the through hole 765 is communicated with the injection channel 751, at the moment, the sliding press contact block 715 slides forwards, the needle cylinder elastic piece 714 is compressed, the elastic force is acted on the piston block 711, the piston block 711 pushes forwards, the dye in the needle cylinder 712 enters the injection port 75 through the dye pipe 74, and at the moment, the injection channel 751 in the injection port 75 is unblocked, so that the dye can act on the plate through the injection channel 751.

The pressurizing device 72 comprises a first guide wheel 721, a second guide wheel 722, a wire-rewinding wheel 723, a wire guide plate 725 and a pull wire 726, wherein a wire-rewinding hole 719 is formed in the needle cylinder 712, the first guide wheel 721 is arranged in the wire-rewinding hole 719 and is positioned beside the interface of the piston hole 717 and the press-contact block hole 716, the second guide wheel 722, the wire guide plate 725 and the wire-rewinding wheel 723 are arranged on the needle cylinder derivative plate 718, one end of the pull wire 726 is connected to the inner surface of the sliding press-contact block 715, the other end of the pull wire bypasses the first guide wheel 721 and the second guide wheel 722, the pull wire passes through the wire guide plate 725 and is arranged on the wire-rewinding wheel 723, and a set of the first guide wheel 721, the second guide wheel 722 and the pull wire 726 are arranged on the left and the right.

Wherein, the wire-rewinding wheel 723 is rotated to tighten the pull wire 726, so as to drive the sliding pressure contact block 715 to slide towards the piston block 711, thereby compressing the syringe elastic element 714, so that the elastic force acts on the piston block 711, and the pull wires 726 are arranged on the left and right, so that the sliding pressure contact block 715 can slide forwards stably.

A plurality of locking teeth 727 are uniformly arranged on the lower bottom surface of the take-up pulley 723 around the circle center, a take-up gear 724 is arranged above the locking teeth, the locking device 73 comprises a sliding pin 731, a locking elastic part 732 and a sliding pin track 733, the sliding pin track 733 is arranged on the needle cylinder derived plate 715 and is positioned right below the take-up pulley 723,

the sliding pin 731 is slidably disposed in the sliding pin track 733, the locking elastic member 732 is slidably disposed in the sliding pin track 733, and both ends thereof are pressed against the sliding pin 731 and the inner wall of the sliding pin track 733,

the top end of the sliding pin 731 is higher than the lower plane of the locking tooth 727, the top end of the sliding pin 731 is pressed against the side wall of the locking tooth 727, the gap between the two locking teeth 727 is larger than the diameter of the sliding pin 731, the outer edge of the locking tooth 727 is flush with the outer edge of the take-up pulley 723, and the length of the locking tooth 727 is smaller than the difference between the radius of the take-up pulley 723 and the diameter of the sliding pin 731.

Wherein in the initial state, the sliding pin 731 is located in the rotation range of the locking tooth 727 under the action of the locking elastic member 732, and thus contacts against the side wall of the locking tooth 727, thereby locking the wire take-up pulley 723 against rotation, and when the sliding pin 731 is subjected to an inward press-contact force, it slides inward, so that it leaves the rotation range of the locking tooth 727, and it is out of contact with the locking tooth 727, at which time the wire take-up pulley 723 is in the unlocked state, and the wire take-up pulley 723 can rotate.

The tightening reset device 8 is arranged on the base 1, the number of the tightening reset device 8 is the same as that of the syringe devices 71, the tightening reset device is located at the initial position of the laser equipment, the tightening reset device comprises an electric push rod 81 and a combination plate 82, the combination plate 82 is arranged on an extension rod of the electric push rod 81, the combination plate 82 comprises a wire take-up rack 821 and an unlocking plate 822, the electric push rod 81 can extend and retract according to requirements, when the electric push rod 81 is pushed forwards, the laser head 3 restores and leaves the initial position, the unlocking plate 822 can push against and contact a sliding pin 731 to slide inwards, and the wire take-up rack 821 can be meshed with a wire take-up gear 724.

The spraying devices 7 and the tightening and resetting devices 8 are provided with a plurality of groups, at least 4 groups of injection ports 75 and control devices 76 are uniformly arranged on the outer cover frame 61, and the dye pipes 74 in each group of spraying devices 7 are communicated with all the injection ports 75. The plurality of sets of syringe devices 71 are filled with dyes of different colors.

Wherein after the laser head 3 returns to the initial state, the operator inputs the attribute of the plate into the laser device, the laser device controls the electric push rod 81 to push out forwards according to the attribute of the plate, at the moment, the laser device starts to work, the three-coordinate walking part 2 controls the laser head 3 to slide forwards, at the moment, the unlocking plate 822 pushes against the sliding pin 731 on the locking device 73 to slide inwards, the wire-rewinding wheel 723 is unlocked, when the laser head is unlocked, the wire take-up rack 821 is meshed with the wire take-up gear 724, at the moment, the laser head 3 slides forwards and continues to slide forwards, thereby driving the wire take-up gear 724 to rotate, the wire take-up gear 724 rotates to drive the wire take-up wheel 723 to rotate, thereby tightening the wire 726, and driving the sliding press contact block 715 to slide toward the piston block 711, thereby compressing the syringe resilient member 714 so that it exerts a resilient force on the piston block 711, causing pressure on the piston block 711.

After the laser head 3 finishes working and returns to the initial position, the three-coordinate traveling part 2 controls the laser head 3 to slide backwards, at this time, the unlocking plate 822 abuts against the sliding pin 731 on the locking device 73 to slide inwards, the take-up wheel 723 is unlocked, the take-up rack 821 is meshed with the take-up gear 724 while unlocking is carried out, at this time, the laser head 3 slides forwards and continues to slide backwards, so that the take-up gear 724 is driven to rotate reversely, the pull wire 726 is loosened, forward pressure and tension of the sliding pressure contact block 715 disappears, the sliding pressure contact block 715 returns to the initial state under the action of the needle cylinder elastic piece 714, and accordingly pressure on the piston block 711 disappears.

The three-coordinate walking part 2 comprises a walking frame 21, a moving rack 22, a walking gear 23 and a driving motor 24, wherein the moving rack 22 is arranged on the walking frame 21, the driving motor 24 is arranged on the walking frame 21, the walking gear 23 is arranged on the driving motor 24, the base 1 comprises a fixed rack 11, a guide rail 12 and a frame 14, the fixed rack 11 is arranged on the left side and the right side of the frame 13, a dustproof plate 13 is arranged on the inner side of the fixed rack 11, a long slotted hole 131 is formed in the dustproof plate 13, the guide rail 12 is arranged on the outer side of the fixed rack 11 on one side, the walking frame 21 is arranged on the guide rail 12 in a sliding mode, and the walking gear 23 is meshed with the fixed rack 11.

Wherein after the driving motor 24 is started, the traveling gear 23 is rotated, and since it is engaged with the fixed rack 11, the traveling gear 23 is rotated to drive the entire three-coordinate traveling part 2 to slide on the guide rail 12.

The bearing part 4 comprises a roller 41, a roller gear 42, a guide seat 43, a first elastic member 44, a guide rod 47, a limiting seat 45 and a cleaning device 46, wherein a plurality of limiting seats 45 are arranged on two sides of a frame 14 of the base 1 and are positioned between the fixed rack 11 and the dust-proof plate 13, the limiting seats 45 on the two sides are connected through the guide rod 47, the guide seat 43 is arranged between every two limiting seats 45, the sliding seat 43 is arranged on the guide rod 47 in a sliding manner, the first elastic member 44 is arranged on the left side and the right side of the guide seat 43, two ends of the first elastic member respectively abut against the guide seat 43 and the limiting seats 45 and are arranged on the guide rod 47 in a sliding manner, a roller shaft 411 is rotatably arranged on the central line of the roller 41 and is rotatably arranged on the front and back direction of the guide seat 43 through the roller shaft 411 so as to be perpendicular to the guide rod 47, the roller gear 42 is arranged at two ends of the roller shaft 411, the laser head is meshed with the fixed rack 11, when the three-coordinate traveling part 2 slides back and forth, the movable rack 22 on the three-coordinate traveling part can be meshed with the rolling gear 42, the width of the fixed rack 11 is larger than the thickness of the roller gear 42 and the traveling gear, so that the two can be meshed on the fixed rack at the same time, the two do not interfere with each other, the distance that the guide seat 43 can move forwards or backwards is larger than the diameter of the roller 41, the length of the movable rack 22 is smaller than the distance that the guide seat 43 can move forwards or backwards and is larger than the diameter of the roller 41, the movable rack and the guide seat are symmetrically arranged on the traveling frame 21 in front and back, and the laser head 3 is also symmetrically arranged on the traveling frame 21 in front and back.

When the laser starts to work, the driving motor 24 drives the whole three-coordinate walking part 2 to slide on the guide rail 12, before the laser head 3 is about to be located above the roller 41, the moving rack 22 on the three-coordinate walking part 2 is meshed with the rolling gear 42 in advance, at the moment, the three-coordinate walking part 2 continues to slide backwards, so that the moving rack 22 drives the rolling gear 42 to rotate, and the rolling gear 42 rotates due to the fact that the lower portion of the rolling gear 42 is meshed with the fixed rack 11, the rolling gear 42 drives the roller 41 to slide backwards, the roller 41 is separated from the position under the laser head 11, and when the laser cuts a plate, generated slag cannot be sputtered on the roller, and therefore the slag cannot be adhered.

Since the roller 41 is rotatably disposed on the roller shaft 411 and the rolling gear 42 is disposed on the rolling shaft 411, when the moving rack 22 drives the rolling gear 42 on one side to rotate, the whole roller shaft 411 is driven to rotate, so that the rolling gear 42 on the other side also rotates, and thus both ends of the roller 41 move simultaneously, and the roller 41 can move smoothly.

When the three-coordinate traveling unit 2 leaves the area where the roller 41 is located, the guide base 43 is restored to the initial position by the first elastic member 44.

The cleaning device 46 comprises a phoenix string airbag 461, a sliding plug 462, an air nozzle 463 and a fixing plate 464, wherein one end of the phoenix string airbag 461 is arranged on the guide seat 43, the other end of the phoenix string airbag 461 is arranged on the fixing plate 464, the fixing plate 464 is arranged on the base 1, the fixing plate 464 is provided with an air inlet 465 and is communicated with the inside of the phoenix string airbag 461, the sliding plug 462 is arranged on the air inlet 465 in a sliding manner, the air nozzle 463 is arranged on the guide seat 43 and is communicated with the inside of the phoenix string airbag 461, the air nozzle 463 is aligned to the fixed rack 11 through the slotted hole 131, the sliding plug 462 comprises a sliding rod 4621, a conical plug 4622 and a limiting block 4623, the sliding plug is arranged on the air inlet 465 through the sliding rod 4621, the diameter of the bottom surface of the conical plug 4622 is larger than that of the air inlet 465, the sliding plug 462 is arranged at one end of the sliding rod 4621 and is positioned inside the phoenix string airbag 461, the limiting block 4623 is arranged at the other end of the sliding rod 4621 and cannot completely block the air inlet 465, and two sides of the sliding rod 4621 are milled flat, so that external air can enter the inside of the phoenix string airbag 461 conveniently.

When the moving rack 22 drives the rolling gear 42 to rotate forwards, the roller shaft 411 drives the guide seat 43 to move forwards, so as to drive the phoenix string airbag 461 to elongate and enlarge the internal space thereof, at the moment, the internal air pressure is reduced, so that the sliding plug 462 slides inwards under the action of the air pressure, the external part is communicated with the internal part of the phoenix string airbag 461, the external air enters the internal part of the phoenix string airbag 461, after the moving rack 22 is disengaged from the rolling gear 42, the guide seat 43 loses the forward acting force, so that the initial position is returned under the action of the first elastic element 44, the guide seat 43 moves backwards, so as to drive the phoenix string airbag 461 to compress, the internal space thereof is reduced, the internal air pressure is increased, the sliding plug 462 is pushed outwards to slide to block the air inlet, the internal air pressure is continuously increased when the space is continuously reduced, and the internal air pressure is sprayed out from the air nozzle 463, acting on the fixed rack 11 to clean dust and fine particles on the fixed rack 11.

When the moving rack 22 drives the rolling gear 42 to rotate backwards, the roller shaft 411 drives the guide seat 43 to move backwards, so as to drive the phoenix string airbag 461 to compress, so that the internal space thereof is reduced, therefore, the internal air pressure is increased, the sliding plug 462 is pushed to slide outwards to block the air inlet, the internal air pressure is continuously increased when the space is continuously reduced, so that the internal air pressure is sprayed out from the air spraying port 463 to act on the fixed rack 11 to clean dust and tiny particles on the fixed rack 11, after the moving rack 22 is disengaged from the rolling gear 42, the backward acting force of the guide seat 43 is lost, so that the guide seat returns to the initial position under the action of the first elastic element 44, the guide seat 43 is driven to move forwards to drive the phoenix string airbag 461 to elongate, so that the internal space thereof is increased, at the moment, the internal air pressure is reduced, so that the sliding plug 462 slides inwards under the action of the air pressure to communicate the outside with the interior of the phoenix string airbag 461, the outside air enters the inside of the phoenix balloon 461.

The working principle or the using method is as follows:

when the laser starts to work, after an operator inputs the attribute of the plate material into the laser device, the laser device controls the corresponding electric push rod 81 to push out forwards according to the attribute of the plate material, at this time, the laser device starts to work, the three-coordinate walking part 2 controls the laser head 3 to slide forwards, the unlocking plate 822 abuts against the sliding pin 731 on the locking device 73 to slide inwards, so that the wire take-up wheel 723 is unlocked, the wire take-up rack 821 is meshed with the wire take-up gear 724 while the wire take-up wheel 723 is unlocked, at this time, the laser head 3 slides forwards continuously to slide forwards, so that the wire take-up gear 724 is driven to rotate, so that the wire draw 726 is tightened, the sliding pressure contact block 715 is driven to slide towards the piston block 711, so that the syringe elastic piece 714 is compressed, so that the elastic force acts on the piston block 711, and the piston block 711 has pressure.

When the laser starts to work, the driving motor 24 drives the whole three-coordinate walking part 2 to slide on the guide rail 12, before the laser head 3 is located above the roller 41, the moving rack 22 on the three-coordinate walking part 2 is meshed with the rolling gear 42 in advance, at the moment, the three-coordinate walking part 2 continues to slide backwards, so that the moving rack 22 drives the rolling gear 42 to rotate, and the rolling gear 42 rotates due to the fact that the lower portion of the rolling gear 42 is meshed with the fixed rack 11, the roller 41 is driven to slide backwards, the roller 41 is separated from the position under the laser head 11, and therefore when the laser cuts a plate, generated slag cannot be sputtered on the roller, and further slag cannot be adhered.

When the moving rack 22 drives the rolling gear 42 to rotate forward, the roller shaft 411 drives the guide seat 43 to move forward, so as to drive the phoenix string airbag 461 to elongate and increase the internal space thereof, at the moment, the internal air pressure is reduced, so that the sliding plug 462 slides inward under the action of the air pressure, so as to communicate the outside with the inside of the phoenix string airbag 461, the external air enters the inside of the phoenix string airbag 461, after the moving rack 22 is disengaged from the rolling gear 42, the guide seat 43 loses the forward acting force, so as to return to the initial position under the action of the first elastic member 44, so that the guide seat 43 moves backward, so as to drive the phoenix string airbag 461 to compress, so as to reduce the internal space thereof, so that the internal air pressure is increased, the sliding plug 462 is pushed to slide outward, so as to block the air inlet, the internal air pressure is continuously increased when the space is continuously reduced, so that the internal air pressure is ejected from the air ejecting port 463 to act on the fixed rack 11, and cleaning dust and tiny particles on the fixed rack 11.

When the laser starts to set the tool, because the laser does not work, no heat is generated, and the bimetallic strip 63 deforms, so that the double-layer transparent shielding piece 64 is transparent, and the sight of an operator can well see through the double-layer transparent shielding piece 64 to observe the position of the laser head.

Since the bimetal 63 deforms and presses and contacts the liquid storage bag 62 and the pressure contact rod 764, the blocking slider 761 slides inwards, the through hole 765 is communicated with the injection channel 751, at the moment, since the piston block 711 is pressed, after the injection channel 751 is communicated, the dye in the needle cylinder 712 enters the injection port 75 through the dye pipe 74, the dye acts on the plate material through the injection channel 751, and since the injection port 75 is provided with a plurality of groups, the dye can be sprayed on the cut plate and the retained plate no matter how the laser head 3 travels, and the corresponding colors of different plate materials are different, so that the plate material of the same material can be sprayed with the same color no matter the plate is a waste plate or a required plate, and the material property of the plate material can be identified according to the color.

At this time, the bimetal 63 is restored to the initial state, the press contact on the press contact rod 764 disappears, the blocking slider 761 is pushed forward under the action of the blocking elastic member 762, and therefore, the spraying channel 751 is misaligned with the through hole 765, so that the spraying channel 751 is no longer through, the dye is no longer sprayed, and the color spraying of the plate is realized only when the laser is used for cutting.

After the laser cutting is finished and the laser cutting is returned to the initial position, the three-coordinate traveling part 2 controls the laser head 3 to slide backwards, at this time, the unlocking plate 822 abuts against the sliding pin 731 on the locking device 73 to slide inwards, the wire take-up wheel 723 is unlocked, the wire take-up rack 821 is meshed with the wire take-up gear 724 while unlocking is carried out, at this time, the laser head 3 slides forwards and continues to slide backwards, so that the wire take-up gear 724 is driven to rotate reversely, the wire pull 726 is loosened, the forward pressure and tension of the sliding pressure and contact block 715 disappears, the sliding pressure and contact block 715 returns to the initial state under the action of the needle cylinder elastic piece 714, and the pressure on the piston block 711 disappears.

After the laser head is completely stationary, the motorized push rod 81 is retracted backwards.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. Automatic change laser cutting machine, including base (1), three-dimensional walking portion (2) and laser head (3), laser head (3) set up on three-dimensional walking portion (2), and three-dimensional walking portion (2) set up on base (1), and it is used for driving laser head (3) at X axle, Y axle and Z axle motion, its characterized in that: the laser head (3) is also provided with a light pollution prevention device (6) which comprises an outer cover frame (61), a liquid storage bag (62), a bimetallic strip (63) and a double-layer transparent shielding piece (64), the upper side wall of the outer cover frame (61) is provided with a frame notch (611), a cavity (612) is arranged in the side wall, a gap is arranged in the middle of the double-layer transparent shielding piece (64), the liquid storage bag (62) is arranged on the frame notch (611), and the liquid outlet (621) is communicated with the gap between the double-layer transparent shielding pieces (64), the liquid storage bag (62) is made of elastic material and can deform under extrusion and automatically recover after pressure disappears, and the interior of the frame is provided with a solution with low light transmittance, the bimetallic strip (63) is arranged at the bottom end of the outer cover frame (61), and is located on the side of the reservoir (62), the outer cover frame (61) is arranged on the laser head (3).

2. The automated laser cutting machine according to claim 1, wherein: the light pollution prevention device (6) further comprises an elastic sleeve (65), one end of the elastic sleeve is arranged at the bottom end of the laser head (3), the other end of the elastic sleeve is arranged at the upper end of the outer cover frame (61), and the elastic sleeve and the outer cover frame are matched to shield a laser emission point on the laser head (3).

3. The automated laser cutting machine according to claim 2, wherein: the elastic sleeve (65) is designed to be an opaque heat-resistant rubber elastic corrugated pipe, the bottom end of the outer cover frame (61) is provided with a rolling steel ball (66), so that the bottom end of the bimetallic strip (63) is arranged on the bottom surface of the cavity (612), and the outer cover frame (61) is designed to be a heat conduction material.

4. The automated laser cutting machine according to claim 3, wherein: the outer cover frame (61) is designed in a cylindrical shape, at least 1 frame notch (611) is formed in the outer cover frame, double-layer transparent shielding pieces (64) are arranged on each frame notch (611), and gaps between every two layers of transparent shielding pieces (64) are communicated with each other.

5. The automated laser cutting machine according to claim 4, wherein: at least one group of liquid storage bag (62) and bimetallic strip (63) combination is arranged below each double-layer transparent shielding piece (64).

6. The automated laser cutting machine according to claim 5, wherein: at least 4 groups of liquid storage bags (62) and bimetallic strip (63) combinations are uniformly distributed on the outer cover frame (61).

7. The automated laser cutting machine according to claim 5, wherein: the lowest point of the outer cover frame (61) is lower than the lowest point of the laser head (3) in the initial state.