CN214134517U

CN214134517U - Laser cutting device

Info

Publication number: CN214134517U
Application number: CN202022621543.9U
Authority: CN
Inventors: 罗顺; 徐兆华; 王胜先; 李建平; 叶凯云; 颜广文; 杨勇; 盛辉; 张凯
Original assignee: Shenzhen Tete Laser Technology Co Ltd
Current assignee: Shenzhen Tete Laser Technology Co Ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-09-07
Anticipated expiration: 2030-11-12

Abstract

The utility model discloses a laser cutting device, this laser cutting device include organism, laser mechanism and visual positioning mechanism, the organism is equipped with the workstation, laser mechanism locates the organism, and be located the top of workstation. The vision positioning mechanism comprises a CCD assembly, a light-emitting piece and a beam combining mirror, the beam combining mirror is arranged below the laser mechanism and is positioned on a light path of the laser mechanism, the beam combining mirror is opposite to an optical axis of the laser mechanism and is obliquely arranged, the CCD assembly and the light-emitting piece are arranged on the same side of the beam combining mirror and face the same side of the beam combining mirror to the surface of the workbench. The utility model discloses technical scheme can promote the machining precision.

Description

Laser cutting device

Technical Field

The utility model relates to a laser beam machining technical field, in particular to laser cutting device.

Background

In laser beam machining application, before the welding, generally need treat the machined part and fix a position, and treat the machined part earlier through location structure and fix a position the back at present generally, the machined part or laser head are treated in the rethread removal for the machined part is treated to the laser head and is processed, treats machined part or laser head in the removal, nevertheless produces great error easily, leads to the machining precision to hang down.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a laser cutting device aims at promoting the machining precision.

In order to achieve the above object, the utility model provides a laser cutting device, include:

a machine body provided with a workbench;

the laser mechanism is arranged on the machine body and is positioned above the workbench; and the number of the first and second groups,

visual positioning mechanism, including CCD subassembly, luminous piece and beam combining mirror, beam combining mirror is located laser mechanism's below is and is located laser mechanism's light path, beam combining mirror is relative laser mechanism's optical axis slope sets up, the CCD subassembly with luminous piece is located beam combining mirror with one side, and all face toward beam combining mirror the surface setting of workstation.

Optionally, the light-emitting member is annular and is arranged around the periphery of the CCD assembly; alternatively, the first and second electrodes may be,

the light emitting piece is arranged on one side, facing the beam combining mirror, of the CCD assembly, and is provided with a yielding hole, and a light path of the CCD assembly penetrates through the yielding hole and is emitted to the beam combining mirror; alternatively, the first and second electrodes may be,

the light-emitting piece is arranged on one side, deviating from the beam combining mirror, of the CCD assembly.

Optionally, the beam combining mirror is inclined at 45 ° with respect to both the optical axis of the laser mechanism and the optical axis of the CCD assembly.

Optionally, the laser cutting device further includes a first moving mechanism, a second moving mechanism, and a placing seat, the first moving mechanism is disposed on the workbench, the second moving mechanism is slidably mounted on the first moving mechanism, the placing seat is slidably mounted on the second moving mechanism, and a sliding direction of the placing seat relative to the second moving mechanism and a sliding direction of the second moving mechanism relative to the first moving mechanism are arranged at an included angle.

Optionally, the first moving mechanism includes a first support and a first slide rail disposed on the first support, the first support is mounted on the workbench, the second moving mechanism includes a second support and a second slide rail disposed on the second support, the second support is slidably mounted on the first slide rail, the placing seat is slidably mounted on the second slide rail, and the extending direction of the first slide rail and the extending direction of the second slide rail are arranged at an included angle.

Optionally, the laser cutting device further comprises a lifting mechanism, the lifting mechanism is arranged on the machine body and connected with the workbench, and the lifting mechanism is used for driving the workbench to move in the up-and-down direction.

Optionally, the lifting mechanism comprises a fixed seat, a connecting plate, a lead screw, a transmission assembly and a rotating part, the fixed seat is connected with the machine body, the connecting plate is connected with one side, away from the laser mechanism, of the workbench, the lead screw is connected with the connecting plate, one end of the transmission assembly is connected with the lead screw, and the other end of the transmission assembly is connected with the rotating part.

Optionally, the lifting mechanism further includes a guide pillar, an extending direction of the guide pillar is the same as an extending direction of the screw rod, one end of the guide pillar is connected to the connecting plate, the fixing seat is provided with a guide hole, and the guide pillar and the guide hole are slidably mounted in the guide hole.

Optionally, the organism has the working chamber and communicates the opening of working chamber, the workstation laser mechanism with the workstation is all located the working chamber, laser cutting device still includes the guard gate, connects the driving piece and the electricity of guard gate are connected two operating button of driving piece, two operating button divides to locate two offsides of guard gate, the driving piece configuration is pressed two simultaneously by the start-up during the operating button.

Optionally, the laser cutting device further includes a detection sensor, and the detection sensor is disposed at an edge of the opening and located at an outer side of the protection door.

The utility model discloses technical scheme sets up the beam combining mirror through the below at laser mechanism, and one side of beam combining mirror again sets up CCD subassembly and illuminating part, thereby can make the optical axis of laser mechanism and the coaxial setting of optical axis of CCD subassembly, so treat the machined part through the CCD subassembly and fix a position the back, need not remove and treat machined part or laser assembly, thereby can avoid removing the error of treating machined part or laser assembly in-process production, can promote the machining precision, and through locating the same one side of beam combining mirror with CCD subassembly and illuminating part, compare in the mode of locating beam combining mirror below with the illuminating part, so can avoid reducing the occupation space on the workstation direction of height, and can make full use of the space of organism transverse direction, can promote laser cutting device's compact structure nature.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the laser cutting apparatus of the present invention;

FIG. 2 is a schematic view of the interior of the laser cutting apparatus of FIG. 1, wherein the visual alignment assembly is not shown;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a schematic view of the laser mechanism and the vision positioning mechanism of FIG. 2;

FIG. 5 is a schematic structural view of the laser cutting apparatus of FIG. 1 with a lifting mechanism disposed therein;

fig. 6 is a schematic structural diagram of the lifting mechanism in fig. 5.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Machine body	32	Beam combining mirror
11	Opening of the container	33	Luminous element
				12	Working table	40	Lifting mechanism
13	First moving mechanism	41	Fixed seat
				14	Second moving mechanism	42	Connecting plate
15	Placing seat	43	Transmission assembly
				16	Protective door	44	Rotating member
17	Operating button	441	Connecting rod
				20	Laser mechanism	442	Hand wheel
30	Visual positioning mechanism	45	Guide post
				31	CCD assembly	46	Screw mandrel

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a laser cutting device.

In the embodiment of the present invention, please refer to fig. 1 to 4 in combination, the laser cutting device includes a machine body 10, a laser mechanism 20 and a visual positioning mechanism 30, the machine body 10 is provided with a worktable 12, and the laser mechanism 20 is disposed on the machine body 10 and located above the worktable 12. The visual positioning mechanism 30 includes a CCD assembly 31, a light emitting member 33 and a beam combining mirror 32, the beam combining mirror 32 is disposed below the laser mechanism 20 and is located on the light path of the laser mechanism 20, the beam combining mirror 32 is disposed obliquely with respect to the optical axis of the laser mechanism 20, and the CCD assembly 31 and the light emitting member 33 are disposed on the same side of the beam combining mirror 32 and both face the surface of the beam combining mirror 32 facing the worktable 12.

In this embodiment, the beam combining mirror 32 can project laser light emitted by the laser structure, so that the laser light emitted by the laser structure can reach the worktable 12, and a workpiece to be machined on the worktable 12 can be cut. And the surface of the beam combining mirror 32 facing the worktable 12 can reflect visible light, for example, the light emitted by the luminous element 33 can be reflected to the worktable 12 through the beam combining mirror 32, so as to illuminate the workpiece. And the visible light at the workpiece is reflected to the CCD assembly 31 by the beam combining mirror 32, so that the workpiece can be observed through the CCD assembly 31 to facilitate positioning of the workpiece.

The utility model discloses technical scheme is through setting up beam combining mirror 32 in the below of laser mechanism 20, and one side of beam combining mirror 32 sets up CCD subassembly 31 and illuminating part 33 again, thereby can make the optical axis of laser mechanism 20 and the coaxial setting of optical axis of CCD subassembly 31, so treat the machined part through CCD subassembly 31 and fix a position the back, do not need to remove and treat machined part or laser assembly, thereby can avoid removing the error of treating machined part or laser assembly in-process production, can promote the machining precision, and through locating the same one side of beam combining mirror 32 with CCD subassembly 31 and illuminating part 33, compare in locating the mode of beam combining mirror 32 below with illuminating part 33, so can avoid reducing the occupation space on the 12 direction of height of workstation, and can make full use of the space of 10 transverse directions of organism, can promote laser cutting device's compact structure nature.

The light emitting element 33 can be disposed at various positions, for example, in one embodiment, the light emitting element 33 is annular and is disposed around the periphery of the CCD assembly 31. So make CCD subassembly 31's circumference all have the light source, can promote the illuminating effect who treats the machined part to can promote CCD subassembly 31's the positioning accuracy degree, and then promote the machining precision.

In another embodiment, the light emitting element 33 is disposed on a side of the CCD element 31 facing the beam combining mirror 32, the light emitting element 33 has a hole, and the light path of the CCD element 31 passes through the hole and faces the beam combining mirror 32. So also can promote the illuminating effect who treats the machined part to can promote CCD subassembly 31's the positioning accuracy degree, and then promote the machining precision. In addition, in another embodiment, the light emitting element 33 may be disposed on a side of the CCD assembly 31 facing away from the beam combining mirror 32.

In one embodiment, the beam combining mirror 32 is disposed at an angle of 45 ° with respect to both the optical axis of the laser mechanism 20 and the optical axis of the CCD assembly 31. That is, the beam combiner 32 is inclined at 45 ° toward the optical axis of the CCD assembly 31 of the mirror surface of the worktable 12, and the beam combiner 32 is inclined at 45 ° away from the optical axis of the laser mechanism 20 of the mirror surface of the worktable 12, so as to better ensure the penetrating effect of the laser mechanism 20 and the reflection effect of the visible light. Of course, in other embodiments, the included angle between the optical axis of the CCD assembly 31 and the beam combiner 32 may also be any value between 0 ° and 90 °, for example, the included angle may be 30 °, 40 °, or 60 °, and so on.

In one embodiment, the machine body 10 has a working cavity and an opening 11 communicating with the working cavity, the working table 12, the laser mechanism 20 and the working table 12 are all disposed in the working cavity, and the opening 11 is used for placing and taking out a workpiece to be processed, that is, before processing, the workpiece to be processed can be placed into the working cavity from the opening 11 and above the working table 12. And when the machining is finished, this can take out the machined workpiece from the opening 11.

In one embodiment, the laser cutting device further includes a first moving mechanism 13, a second moving mechanism 14, and a placing base 15, the first moving mechanism 13 is disposed on the working table 12, the second moving mechanism 14 is slidably mounted on the first moving mechanism 13, the placing base 15 is slidably mounted on the second moving mechanism 14, and a sliding direction of the placing base 15 relative to the second moving mechanism 14 and a sliding direction of the second moving mechanism 14 relative to the first moving mechanism 13 form an included angle. Specifically, the sliding direction of the placement base 15 with respect to the second moving mechanism 14 is substantially perpendicular to the sliding direction of the second moving mechanism 14 with respect to the first moving mechanism 13, and the second moving mechanism 14 is movable in a direction to approach or separate from the opening 11. Thus, before the machining, the placing base 15 can be moved to the opening 11 by the sliding of the second moving mechanism 14 and the placing base 15, so as to place the workpiece on the placing base 15, and the workpiece can be moved to the lower side of the beam combiner 32 by the sliding of the second moving mechanism 14 and the placing base 15. Namely, when the placing base 15 is made to slide relative to the second moving mechanism 14 and the second moving mechanism 14 is made to slide relative to the first moving mechanism 13, the position of the workpiece to be processed on the workbench 12 can be adjusted, the positioning of the workpiece to be processed can be facilitated, and the placing or taking of the workpiece to be processed can also be facilitated. Of course, in other embodiments, the placing seat 15 may be slidably mounted on the first moving mechanism 13. Or the placing seat 15 is fixedly installed on the work table 12.

In one embodiment, the first moving mechanism 13 includes a first support and a first slide rail disposed on the first support, the first support is mounted on the working table 12, the second moving mechanism 14 includes a second support and a second slide rail disposed on the second support, the second support is slidably mounted on the first slide rail, the placing seat 15 is slidably mounted on the second slide rail, and the extending directions of the first slide rail and the second slide rail form an included angle. Specifically, the first slide rail extends in a direction approaching or separating from the opening 11, so that the second carriage and the placing seat 15 can move in a direction approaching or separating from the opening 11 when the second carriage is mounted on the first slide rail. By mounting the first slide rail on the first support and the second slide rail on the second support, the first moving mechanism 13 and the second moving mechanism 14 are respectively formed into one member, so that the first moving mechanism 13 can be conveniently mounted on the workbench 12, the first moving mechanism 13 and the second moving mechanism 14 can be conveniently mounted, and the first moving mechanism 13 and the second moving mechanism 14 can be flexibly mounted. Wherein, can adopt electric jar module drive between first support and the second support, also can adopt the cylinder module drive. Similarly, the first placing seat 15 and the second support can be driven by an electric cylinder module or by an air cylinder module. In other embodiments, the first slide rail may be provided on the table 12. The first slide rail may be provided on the second support, and the second slide rail may be provided on the placement base 15.

In one embodiment, the laser cutting apparatus further includes a lifting mechanism 40, the lifting mechanism 40 is disposed on the body 10 and connected to the worktable 12, and the lifting mechanism 40 is configured to drive the worktable 12 to move in an up-and-down direction. Namely, the distance between the workbench 12 and the beam combiner 32 can be adjusted through the lifting mechanism 40, so that the workpiece to be processed can be focused and adjusted, and the processing precision is improved.

In one embodiment, the lifting mechanism 40 includes a fixed seat 41, a connecting plate 42, a screw rod 46, a transmission assembly 43 and a rotation element 44, the fixed seat 41 is connected to the machine body 10, the connecting plate 42 is connected to a side of the worktable 12 away from the laser mechanism 20, the screw rod 46 is connected to the connecting plate 42, one end of the transmission assembly 43 is connected to the screw rod 46, and the other end is connected to the rotation element 44. Specifically, the fixed base 41 is fixed to the machine body 10 and positioned below the table 12, and the screw rod 46 extends in the vertical direction. The transmission assembly 43 comprises a mounting seat and a turbine-worm pair arranged on the mounting seat, the turbine is provided with a threaded hole extending along the axial direction, the axis of the threaded hole is coaxial with the axis of the turbine, and the screw rod 46 is arranged in the threaded hole. The rotation member 44 includes a connecting rod 441 and a hand wheel 442 connected to one end of the connecting rod 441, and one end of the connecting rod 441 remote from the hand wheel 442 is connected to a worm. By rotating the hand wheel 442, the worm can be driven to rotate through the connecting rod 441, so as to drive the worm wheel to rotate, and further drive the screw rod 46 to move up and down. That is, when the focusing is required to be adjusted, the rotating member 44 is manually operated, and the transmission assembly 43 drives the screw rod 46 and the connecting plate 42 to move up and down, so as to drive the worktable 12 to move up and down. Therefore, the structure of the laser cutting equipment can be simplified and the cost can be reduced by adopting a manual focusing mode. Of course, in other embodiments, the lifting mechanism 40 may be driven by a motor or an air cylinder to facilitate automatic focusing adjustment.

The structures of the transmission assembly 43 and the rotation member 44 are not limited to this, for example, in other embodiments, the transmission assembly 43 may also be a gear transmission structure. The rotation member 44 may include a connecting rod 441 and an operating rod connected to one end of the connecting rod 441, the operating rod being perpendicular to the connecting rod 441, or the hand wheel 442 may be connected to the worm without providing the connecting rod 441. In addition, the structure of the turbine is not limited to the above structure, for example, in some embodiments, a nut may be provided in the shaft hole of the turbine, and the nut may be sleeved on the lead screw 46. Alternatively, the screw 46 may be connected to the table 12 without providing the connecting plate 42.

In one embodiment, the lifting mechanism 40 further includes a guide post 45, an extending direction of the guide post 45 is the same as an extending direction of the screw 46, one end of the guide post 45 is connected to the connecting plate 42, the machine body 10 is provided with a guide hole, and the guide post 45 is slidably mounted in the guide hole. That is, when the connecting plate 42 and the workbench 12 move up and down, the guide post 45 can slide up and down along the guide hole, and by arranging the guide post and the guide hole, the stability of the connecting plate 42 and the workbench 12 during the up and down movement can be improved. The number of the guide posts 45 may be one or more, for example, the number of the guide posts 45 is two, three, four or more, and so on. The number of the guide posts 45 is multiple, and the guide posts 45 are distributed at intervals along the circumferential direction of the screw rod 46, so that the stability of the connecting plate 42 and the workbench 12 during up-and-down movement is further improved. Of course, in other embodiments, the guide posts 45 may not be provided.

In one embodiment, the laser cutting apparatus further includes a protective door 16, a driving member connected to the protective door 16, and two operation buttons 17 electrically connected to the driving member, wherein the two operation buttons 17 are respectively disposed on two opposite sides of the protective door 16, and the driving member is configured to be activated when the two operation buttons 17 are simultaneously pressed. That is, after the workpiece is placed on the table 12, two buttons need to be pressed simultaneously to close the protective door 16, and two operation buttons 17 are provided on two opposite sides of the protective door 16. Therefore, the operator needs to press the two operation buttons 17 with two hands respectively, so that the situation that when the operator presses the operation button 17 with one hand to close the protective door 16, the other hand is positioned in the opening 11 and is pinched and injured can be avoided, and the safety of the laser cutting device is improved. Of course, in other embodiments, only one operation button 17 may be provided.

In one embodiment, the laser cutting apparatus further includes a detection sensor disposed at an edge of the opening 11 and located outside the protection door 16. Specifically, the detection sensor is safety grating (photoelectric safety protection device), and the both sides contralateral of opening 11 is located to safety grating's transmitting terminal and receiving terminal branch, through set up safety grating in opening 11 department, can detect whether there is foreign matter such as work piece or operating personnel's hand in opening 11 department to can remind operating personnel through the siren, perhaps prevent through the controller that guard gate 16 is closed, with the security that improves. Of course, in other embodiments, the detection sensor may be an infrared sensor or the like.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A laser cutting apparatus, comprising:

a machine body provided with a workbench;

2. The laser cutting device according to claim 1, wherein the light emitting member is annular and is disposed around the periphery of the CCD assembly; alternatively, the first and second electrodes may be,

3. The laser cutting device according to claim 1, wherein the beam combining mirror is disposed at an inclination of 45 ° with respect to both the optical axis of the laser mechanism and the optical axis of the CCD assembly.

4. The laser cutting device according to claim 1, further comprising a first moving mechanism disposed on the table, a second moving mechanism slidably mounted on the first moving mechanism, and a placing base slidably mounted on the second moving mechanism, wherein a sliding direction of the placing base with respect to the second moving mechanism and a sliding direction of the second moving mechanism with respect to the first moving mechanism are arranged at an angle.

5. The laser cutting device according to claim 4, wherein the first moving mechanism includes a first support and a first slide rail disposed on the first support, the first support is mounted on the working table, the second moving mechanism includes a second support and a second slide rail disposed on the second support, the second support is slidably mounted on the first slide rail, the placing base is slidably mounted on the second slide rail, and the extending directions of the first slide rail and the second slide rail are arranged at an included angle.

6. The laser cutting device according to claim 1, further comprising a lifting mechanism disposed on the body and connected to the worktable, wherein the lifting mechanism is configured to drive the worktable to move in an up-and-down direction.

7. The laser cutting device according to claim 6, wherein the lifting mechanism comprises a fixed seat, a connecting plate, a screw rod, a transmission assembly and a rotating member, the fixed seat is connected with the machine body, the connecting plate is connected with one side of the worktable, which is away from the laser mechanism, the screw rod is connected with the connecting plate, one end of the transmission assembly is connected with the screw rod, and the other end of the transmission assembly is connected with the rotating member.

8. The laser cutting device as claimed in claim 7, wherein the lifting mechanism further includes a guide post, the guide post extends in a direction corresponding to the direction of the lead screw, one end of the guide post is connected to the connecting plate, the fixing base is provided with a guide hole, and the guide post is slidably mounted in the guide hole.

9. The laser cutting device according to any one of claims 1 to 8, wherein the body has a working chamber and an opening communicating with the working chamber, the working table, the laser mechanism and the working table are disposed in the working chamber, the laser cutting device further comprises a guard door, a driving member connected to the guard door, and two operation buttons electrically connected to the driving member, the two operation buttons are disposed on two opposite sides of the guard door, and the driving member is configured to be activated when the two operation buttons are simultaneously pressed.

10. The laser cutting apparatus of claim 9, further comprising a detection sensor disposed at an edge of the opening and outside the guard door.