CN110064852B

CN110064852B - Laser cutting device

Info

Publication number: CN110064852B
Application number: CN201910488631.5A
Authority: CN
Inventors: 王军
Original assignee: Nantong Linghan Laser Technology Co ltd
Current assignee: Jiangsu Ruifeng Intelligent Laser Technology Co ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-10-20
Anticipated expiration: 2039-06-06
Also published as: CN110064852A

Abstract

The invention discloses a laser cutting device, which comprises a welding platform and a frame positioned above the welding platform, a first sliding groove with a downward opening is arranged in the frame, limiting grooves are symmetrically arranged in the left end wall and the right end wall of the first sliding groove, a limiting block fixedly connected with the first sliding block is slidably arranged in the limiting groove, a top pressure spring abutting against the lower end surface of the limiting groove is arranged at the lower end of the limiting block, a first sliding block is slidably arranged in the first sliding groove, a first rotating shaft extending up and down is rotatably arranged in the first sliding block, the lower end of the first rotating shaft is provided with a cutting assembly for cutting a metal circular plate, the frame is also provided with a cutting protection assembly, and the frame is also internally provided with a driving assembly for driving the cutting assembly to rotate and driving the cutting assembly and the cutting protection assembly to descend.

Description

Laser cutting device

Technical Field

The invention relates to the technical field of laser cutting, in particular to a laser cutting device.

Background

Laser cutting is a process in which a workpiece is heated by a high energy density laser beam to rapidly increase the temperature, and the material reaches its boiling point in a very short time, begins to vaporize, forming a vapor. These vapors are ejected at a high speed, and a slit is formed in the material at the same time as the vapor is ejected. Laser cutting equipment often cuts processing to sheet metal, and the metal plectane can be used often in modern production, consequently, often carries out circular cutting to the sheet metal, and in the cutting process, can sputter spark, can produce great injury to operating personnel, and when loading sheet metal, if produce the maloperation, very serious injury is led to the fact very easily to operating personnel, consequently, traditional laser cutting equipment still has very big potential safety hazard.

Disclosure of Invention

In order to solve the problems, the embodiment designs a laser cutting device which comprises a welding platform and a machine frame positioned above the welding platform, a first sliding groove with a downward opening is arranged in the frame, limiting grooves are symmetrically arranged in the left end wall and the right end wall of the first sliding groove, a limiting block fixedly connected with the first sliding block is slidably arranged in the limiting groove, a top pressure spring abutting against the lower end surface of the limiting groove is arranged at the lower end of the limiting block, a first sliding block is slidably arranged in the first sliding groove, a first rotating shaft extending up and down is rotatably arranged in the first sliding block, the lower end of the first rotating shaft is provided with a cutting assembly for cutting a metal circular plate, the frame is also provided with a cutting protection assembly, and the frame is also internally provided with a driving assembly for driving the cutting assembly to rotate and driving the cutting assembly and the cutting protection assembly to descend.

Further technical scheme, the cutting assembly includes fixed mounting and is in first axis of rotation lower extreme and perpendicular to the support of first axis of rotation is extended the setting about, in the support and upper and lower communicating second sliding tray, slidable mounting be in second sliding block and the laser cutter of fixed mounting at second sliding block lower extreme in the second sliding tray, all be provided with longitudinal symmetry and the guide way of extending about on the inner wall around the second sliding tray, slidable mounting have in the guide way with second sliding block fixed connection's gib block, still install in the support and be used for adjusting the adjusting part of second sliding block position.

Further technical scheme, the adjusting part include with second sliding block screw-thread fit's first threaded rod, both ends are rotationally installed respectively about the first threaded rod in the end wall about the second sliding tray, just first threaded rod right-hand member extends right support and fixed mounting have first gear.

A further technical scheme, the terminal surface right side is provided with about extending constant head tank that the under shed is down under the frame, second sliding block up end fixed be provided with constant head tank complex location strip, be provided with opening pivoted groove down in the terminal surface under the frame, fixed mounting has adjusting motor in the pivoted groove right-hand member wall, rotate in the groove install with the second gear that adjusting motor power is connected, just second gear lower extreme exposes the pivoted groove can with first gear engagement, support up end right side fixed mounting has first armature plate, under the frame in the terminal surface fixed mounting with first armature plate complex first electro-magnet.

According to a further technical scheme, the cutting protection assembly comprises an annular cavity with a downward opening and an annular sleeve slidably mounted in the annular cavity, an annular groove with a downward opening is formed in the annular sleeve, a protection cover is slidably mounted in the annular groove, and an elastic strip fixedly connected with the protection cover is fixedly mounted in the top wall of the annular groove.

The driving assembly comprises a third sliding block which is slidably mounted in the first sliding groove and is positioned above the first sliding block, a third sliding groove is formed in the right end wall of the first sliding groove, a fourth sliding block fixedly connected with the third sliding block is slidably mounted in the third sliding groove, a transmission groove is formed above the first sliding groove, a dovetail groove is formed in the top wall of the transmission groove, a second rotating shaft is rotatably mounted on the third sliding block shaft in a matched manner, a spline groove with an upward opening is formed in the second rotating shaft, a first friction disc is fixedly mounted at the lower end of the second rotating shaft in a downward extending manner, a second friction disc matched with the first friction disc is fixedly mounted at the upper end of the first rotating shaft, and a spline shaft extending up and down is rotatably mounted between the first sliding groove and the transmission groove, the lower end of the spline shaft extends into the spline groove and is in spline fit with the spline groove, the upper end of the spline shaft extends into the transmission groove and is fixedly provided with a third gear, a second screw rod which extends up and down and is in thread fit with a fourth sliding block is rotatably arranged between the transmission groove and the third sliding groove, the lower end of the second screw rod is rotatably arranged in the bottom wall of the third sliding groove, the upper end of the second screw rod extends into the transmission groove and is fixedly provided with a fourth gear, a dovetail block is slidably arranged in the dovetail groove, a rotating motor is fixedly arranged in the dovetail block, a fifth gear which is positioned between the third gear and the fourth gear and can be meshed with the third gear and the fourth gear is dynamically arranged at the lower end of the rotating motor, through grooves which are communicated with the limiting groove and the annular cavity are symmetrically arranged in the rack, and connecting arms which are fixedly connected with the limiting blocks and the annular sleeve are slidably arranged in the through grooves, and an electromagnetic device for driving the dovetail block to slide is also arranged in the rack.

According to a further technical scheme, the electromagnetic device comprises second armature sheets fixedly mounted on the left end face and the right end face of the dovetail block and second electromagnets fixedly mounted in the left end wall and the right end wall of the dovetail groove.

The invention has the beneficial effects that: the device can freely adjust the cutting diameter of the laser cutter according to the requirement when in use, thereby being capable of processing metal circular plates with different diameters, and the protective cover is abutted against the metal plate in the processing process, thereby greatly reducing the potential safety hazard, being beneficial to preventing photo-thermal pollution and reducing the injury to processing personnel.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

Fig. 1 is a schematic overall structure diagram of a laser cutting apparatus according to the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1, for the sake of convenience, the following orientations are defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The laser cutting device comprises a welding platform 10 and a machine frame 11 positioned above the welding platform 10, a first sliding groove 48 with a downward opening is arranged in the frame 11, the left and right end walls of the first sliding groove 48 are symmetrically provided with limiting grooves 44, a limiting block 30 fixedly connected with the first sliding block 27 is slidably mounted in the limiting groove 44, the lower end of the limiting block 30 is provided with a top pressure spring 45 which is abutted against the lower end surface of the limiting groove 44, the first sliding groove 48 is slidably mounted with the first sliding block 27, the first sliding block 27 is rotatably mounted with the first rotating shaft 47 extending up and down, a cutting assembly for cutting a metal circular plate is installed at the lower end of the first rotating shaft 47, a cutting protection assembly is also installed in the frame 11, and a driving assembly for driving the cutting assembly to rotate and driving the cutting assembly and the cutting protection assembly to descend is further installed in the frame 11.

Advantageously, the cutting assembly comprises a bracket 46 fixedly mounted at the lower end of the first rotating shaft 47 and perpendicular to the first rotating shaft 47, a second sliding groove 42 extending left and right in the bracket 46 and communicating up and down, a second sliding block 37 slidably mounted in the second sliding groove 42, and a laser cutter 38 fixedly mounted at the lower end of the second sliding block 37, wherein guide grooves 41 extending left and right are disposed on the front and rear inner walls of the second sliding groove 42, a guide bar fixedly connected with the second sliding block 37 is slidably mounted in the guide grooves 41, and an adjusting assembly for adjusting the position of the second sliding block 37 is further mounted in the bracket 46.

Advantageously, the adjusting assembly comprises a first threaded rod 40 in threaded engagement with the second sliding block 37, the left and right ends of the first threaded rod 40 are rotatably mounted in the left and right end walls of the second sliding groove 42, respectively, and the right end of the first threaded rod 40 extends to the right out of the bracket 46 and is fixedly mounted with the first gear 36.

Beneficially, frame 11 lower terminal surface right side is provided with and extends about constant head tank 43 that the under shed is down, second sliding block 37 up end fixed be provided with constant head tank 43 complex location strip 39, be provided with the rotation groove that the opening is down in the frame 11 lower terminal surface, fixed mounting has adjusting motor 33 in the rotation groove right-hand member wall, install in the rotation groove with adjusting motor 33 power connection's second gear 34, just second gear 34 lower extreme exposes the rotation groove and can with first gear 36 meshes, support 46 upper end right side fixed mounting has first armature piece 35, fixed mounting has in the frame 11 lower terminal surface with first armature piece 35 complex first electro-magnet 32.

Advantageously, the cutting protection assembly comprises an annular cavity with a downward opening and an annular sleeve 31 slidably mounted in the annular cavity, an annular groove 50 with a downward opening is arranged in the annular sleeve 31, a protection cover 52 is slidably mounted in the annular groove 50, and an elastic strip 51 fixedly connected with the protection cover 52 is fixedly mounted in the top wall of the annular groove 50.

Advantageously, the driving assembly includes a third sliding block 14 slidably mounted in the first sliding groove 48 and located above the first sliding block 27, a third sliding groove 24 is provided on a right end wall of the first sliding groove 48, a fourth sliding block 26 fixedly connected to the third sliding block 14 is slidably mounted in the third sliding groove 24, a transmission groove 55 is provided above the first sliding groove 48, a dovetail groove 56 is provided on a top wall of the transmission groove 55, a second rotating shaft 15 is axially and cooperatively mounted on the third sliding block 14, a spline groove with an upward opening is provided in the second rotating shaft 15, a first friction disc 13 is downwardly extended and fixedly mounted at a lower end of the second rotating shaft 15, a second friction disc 12 cooperatively engaged with the first friction disc 13 is fixedly mounted at an upper end of the first rotating shaft 47, and a spline shaft 16 vertically extended is rotatably mounted between the first sliding groove 48 and the transmission groove 55, the lower end of the spline shaft 16 extends into the spline groove and is in spline fit with the spline groove, the upper end of the spline shaft extends into the transmission groove 55 and is fixedly provided with a third gear 17, a second screw 25 which extends up and down and is in thread fit with a fourth sliding block 26 is rotatably arranged between the transmission groove 55 and the third sliding groove 24, the lower end of the second screw 25 is rotatably arranged in the bottom wall of the third sliding groove 24, the upper end of the second screw extends into the transmission groove 55 and is fixedly provided with a fourth gear 23, a dovetail block 21 is slidably arranged in the dovetail groove 56, a rotating motor 20 is fixedly arranged in the dovetail block 21, a fifth gear 18 which is positioned between the third gear 17 and the fourth gear 23 and can be meshed with the third gear 17 and the fourth gear 23 is dynamically arranged at the lower end of the rotating motor 20, through grooves 29 which are communicated with the limit groove 44 and the annular cavity are symmetrically arranged in the rack 11, a connecting arm 28 fixedly connected with the limiting block 30 and the annular sleeve 31 is slidably mounted in the through groove 29, and an electromagnetic device for driving the dovetail block 21 to slide is further arranged in the rack 11.

Advantageously, the electromagnetic means comprise second armature plates 19 fixedly mounted on the left and right end faces of the dovetail block 21 and second electromagnets 22 fixedly mounted in the left and right end walls of the dovetail groove 56.

In an initial state, the third sliding block 14 abuts against the top wall of the first sliding groove 48, the limiting block 30 is pressed upward under the action of the pressing spring 45, the positioning bar 39 is located in the positioning groove 43, the first gear 36 is engaged with the second gear 34, the second friction disc 12 is separated from the first friction disc 13, and the connecting arm 28 abuts against the top wall of the through groove 29;

when the laser cutting device is used, a metal plate is loaded on the cutting platform, the cutting diameter of the laser cutter 38 is adjusted according to needs, the first electromagnet 32 is started firstly, the first electromagnet 32 adsorbs the first armature sheet 35, then the adjusting motor 33 is started, the adjusting motor 33 drives the second gear 34 to rotate, the second gear 34 drives the first screw 40 to rotate through the first gear 36, therefore, the first screw 40 can drive the second sliding block to slide, the cutting diameter of the laser cutter 38 can be adjusted according to needs, and after the adjustment is finished, the first electromagnet and the adjusting motor are closed;

then the second electromagnet 22 on the right side is started again, the second electromagnet 22 adsorbs the second armature plate 19 on the right side, so that the fifth gear 18 is meshed with the fourth gear 23, at this time, the rotating motor 20 is started, the rotating motor 20 drives the second screw rod 25 to rotate through the fifth gear 18 and the fourth gear 23, so that the third slide block 14 is driven to slide downwards through the fourth slide block 26, during the downward sliding process of the third slide block 14, the first friction disc 13 is firstly abutted against the second friction disc 12, then the first slide block 27 and the first rotating shaft 47 are driven to slide downwards, the first slide block 27 drives the annular sleeve 31 to slide downwards through the limiting block 30 and the connecting arm, when the bottom of the protective cover 52 is abutted against the metal plate material, and the laser cutter is close to the metal plate material, the second electromagnet 22 on the left side and the laser cutter are started, so that the second electromagnet on the left side adsorbs the second armature sheet on the left side, thereby the fifth gear 18 is meshed with the third gear 17, when the rotating motor 18 is started, the spline shaft 16 can be driven to rotate by the fifth gear 18 and the third gear 17, the spline shaft 16 drives the second rotating shaft 15 to rotate, the second rotating shaft 15 drives the first rotating shaft 47 to rotate by the first friction disc 13 and the second friction disc 12, the first rotating shaft drives the bracket to rotate, the bracket drives the laser cutter to rotate, the laser cutter stops after rotating around the first rotating shaft 47 for one circle, and simultaneously stops the second electromagnet 22 on the left side and starts the second electromagnet 22 on the right side again, so that the second electromagnet 22 adsorbs the second armature sheet 19 on the right side, the fifth gear 18 is engaged with the fourth gear 23, and the rotating motor 20 is activated to drive the second slide block 14 to slide upward, and the bracket 46 and the protective cover slide upward under the action of the pressing spring, so that the cut circular metal plate and the waste can be removed from the cutting platform for the next cutting task.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.

Claims

1. A laser cutting device comprises a welding platform and a machine frame positioned above the welding platform, a first sliding groove with a downward opening is arranged in the frame, limiting grooves are symmetrically arranged in the left end wall and the right end wall of the first sliding block, a limiting block fixedly connected with the first sliding block is slidably arranged in the limiting groove, a top pressure spring abutting against the lower end surface of the limiting groove is arranged at the lower end of the limiting block, a first sliding block is slidably arranged in the first sliding groove, a first rotating shaft extending up and down is rotatably arranged in the first sliding block, the lower end of the first rotating shaft is provided with a cutting assembly for cutting a metal circular plate, the frame is also provided with a cutting protection assembly, the rack is also internally provided with a driving assembly which is used for driving the cutting assembly to rotate and driving the cutting assembly and the cutting protection assembly to descend; the cutting protection assembly comprises an annular cavity with a downward opening and an annular sleeve slidably mounted in the annular cavity, an annular groove with a downward opening is formed in the annular sleeve, a protection cover is slidably mounted in the annular groove, and an elastic strip fixedly connected with the protection cover is fixedly mounted in the top wall of the annular groove; the method is characterized in that: the driving assembly comprises a third sliding block which is slidably installed in the first sliding groove and is positioned above the first sliding block, a third sliding groove is formed in the right end wall of the first sliding groove, a fourth sliding block fixedly connected with the third sliding block is slidably installed in the third sliding groove, a transmission groove is formed above the first sliding groove, a dovetail groove is formed in the top wall of the transmission groove, a second rotating shaft is installed on the third sliding block in a rotating fit mode, a spline groove with an upward opening is formed in the second rotating shaft, a first friction disc is fixedly installed at the lower end of the second rotating shaft in a downward extending mode, a second friction disc matched with the first friction disc is fixedly installed at the upper end of the first rotating shaft, a spline shaft extending up and down is rotatably installed between the first sliding groove and the transmission groove, and the lower end of the spline shaft extends into the spline groove and is in spline fit with the spline groove, the upper end of the transmission groove extends into the transmission groove and is fixedly provided with a third gear, a second screw rod which extends up and down and is in threaded fit with the fourth sliding block is rotatably arranged between the transmission groove and the third sliding groove, the lower end of the second screw rod is rotatably arranged in the bottom wall of the third sliding groove, the upper end of the second screw rod extends into the transmission groove and is fixedly provided with a fourth gear, a dovetail block is slidably arranged in the dovetail groove, a rotating motor is fixedly arranged in the dovetail block, a fifth gear which is positioned between the third gear and the fourth gear and can be meshed with the third gear and the fourth gear is dynamically installed at the lower end of the rotating motor, through grooves for communicating the limiting groove with the annular cavity are symmetrically arranged in the rack left and right, connecting arms fixedly connected with the limiting block and the annular sleeve are slidably mounted in the through grooves, and an electromagnetic device for driving the dovetail block to slide is further arranged in the rack; the electromagnetic device comprises second armature sheets fixedly arranged on the left end face and the right end face of the dovetail block and second electromagnets fixedly arranged in the left end wall and the right end wall of the dovetail groove.

2. A laser cutting apparatus as claimed in claim 1, wherein: the cutting assembly comprises a fixed mounting, a first rotating shaft, a second rotating shaft, a first sliding block, a second sliding block, a laser cutter, a guide strip, a second sliding block, a laser cutter and a second sliding block, wherein the first rotating shaft is arranged at the lower end of the first rotating shaft, the second rotating shaft is arranged at the left end and the right end of the first rotating shaft in a stretching mode, the first sliding block is arranged in the second sliding groove in a stretching mode, the second sliding block is arranged in the guide groove in a stretching mode, the second sliding block is arranged in the.

3. A laser cutting apparatus as claimed in claim 2, wherein: the adjusting part include with second sliding block screw-thread fit's first threaded rod, both ends are rotationally installed respectively about the first threaded rod in the end wall about the second sliding tray, just first threaded rod right-hand member extends right support and fixed mounting have first gear.

4. A laser cutting apparatus as claimed in claim 3, wherein: the frame lower extreme right side is provided with about extending constant head tank that the under shed is down, second sliding block up end fixed be provided with constant head tank complex location strip, be provided with opening pivoted groove down in the frame lower extreme terminal surface, fixed mounting has adjusting motor in the pivoted groove right-hand member wall, rotate in the groove install with the second gear that adjusting motor power is connected, just second gear lower extreme exposes the pivoted groove can with first gear engagement, support up end right side fixed mounting has first armature plate, under the frame in the terminal surface fixed mounting with first armature plate complex first electro-magnet.