CN115365646A

CN115365646A - Five laser beam machining machines

Info

Publication number: CN115365646A
Application number: CN202211109695.8A
Authority: CN
Inventors: 成学平; 韩小鹏; 李伟; 张宗毅; 王长清
Original assignee: Shenzhen JPT Optoelectronics Co Ltd
Current assignee: Shenzhen JPT Optoelectronics Co Ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2022-11-22

Abstract

The invention provides a five-axis laser processing machine tool, and relates to the technical field of laser processing machine tools. The five-axis laser processing machine tool comprises a machine body, a mechanical motion assembly, an AC shaft rotary table and a laser processing system. The mechanical motion assembly comprises an X-axis motion mechanism, a Y-axis motion mechanism and a Z-axis motion mechanism, the Y-axis motion mechanism is arranged on the bed body, the X-axis motion mechanism is arranged on the Y-axis motion mechanism, and the Z-axis motion mechanism is arranged on the X-axis motion mechanism; the AC shaft rotating table is arranged on the lathe bed and drives the workpiece to rotate around the C shaft, the AC shaft rotating table drives the workpiece to swing around the A shaft, and the axial direction of the workpiece is parallel to the C shaft; the laser processing system comprises a laser, a light path element and a focusing assembly, the laser is installed on the lathe bed, the light path element and the focusing assembly are installed on the Z-axis movement mechanism, and the light path element is connected with the laser and the focusing assembly respectively. The five-axis laser processing machine tool provided by the invention can effectively improve the running speed, the processing precision and the processing efficiency.

Description

Five laser beam machining machines

Technical Field

The invention relates to the technical field of laser processing machines, in particular to a five-axis laser processing machine tool.

Background

Typical difficult-to-machine materials such as titanium alloy, high-temperature alloy, ultrahigh-strength steel and the like are increasingly widely applied in key fields of advanced manufacturing industries such as aerospace, medical treatment and the like, and simultaneously, higher and higher requirements are put forward on the machining quality and the machining efficiency of the machined materials. In order to meet the requirements of high-efficiency and high-quality processing of the materials difficult to process, high-end cutting tool materials are developed towards the directions of super hardness, wear resistance and the like, and the profile of the tool tends to be complex. However, due to the difficult machining characteristics of the tool material, when the high-end tool is manufactured by using the conventional process technologies such as electric discharge machining and grinding, the problems of high manufacturing cost, low machining efficiency, complex machining process and the like exist. Laser processing has become a main means of processing difficult-to-process materials due to its characteristics of no contact, no material selectivity and the like.

Five coordinate axes of the five-axis machining tool can be linked, so that machining of a space curved surface and any contour is met, a large number of machining procedures can be completed after a workpiece is clamped once, and the precision requirements of various aspects of parts are met. In the key fields of advanced manufacturing industries such as aerospace, medical treatment and the like, multi-axis linkage is provided for a five-axis machining tool, and a spindle of the machine tool is required to have higher movement speed. However, in the prior art, the X, Y and Z axes of the five-axis laser processing machine tool are all driven by a rotating motor and a ball screw, and the turntable is driven by the rotating motor, so that the problems that the processing precision, the speed and the processing efficiency are influenced by reverse clearances exist.

Disclosure of Invention

In view of the above, the present invention provides a five-axis laser processing machine tool, so as to overcome the defects in the prior art, and provide a five-axis laser processing machine tool to solve the technical problems of high manufacturing cost, low processing efficiency and complex processing technology of the high-end tool manufacturing by adopting the traditional electric discharge machining and grinding machining in the prior art, and solve the technical problems that in the prior art, the X, Y and Z axes of the five-axis laser processing machine tool are all driven by adopting a rotating motor and a ball screw, and a rotary table is driven by using the rotating motor, so that the processing precision, the speed and the processing efficiency are affected by a reverse gap.

The invention provides the following technical scheme:

a five-axis laser machining tool comprising:

a bed body;

the mechanical motion assembly comprises an X-axis motion mechanism, a Y-axis motion mechanism and a Z-axis motion mechanism, the Y-axis motion mechanism is installed on the bed body, the X-axis motion mechanism is installed on the Y-axis motion mechanism, and the Z-axis motion mechanism is installed on the X-axis motion mechanism;

the AC shaft rotating table is arranged on the lathe bed and used for clamping a workpiece, the AC shaft rotating table drives the workpiece to rotate around a C shaft, the AC shaft rotating table drives the workpiece to swing around an A shaft, and the axial direction of the workpiece is parallel to the C shaft;

the laser processing system comprises a laser, a light path element and a focusing assembly, the laser is installed on the lathe bed, the light path element and the focusing assembly are installed on the Z-axis movement mechanism, and the light path element is connected with the laser and the focusing assembly respectively.

In some embodiments of the application, the lathe bed includes base and two Y axle mounting brackets, two the Y axle mounting brackets install with looks interval on the base, AC axle revolving stage install in on the base, Y axle motion install in on the Y axle mounting bracket, the bottom of base is provided with a plurality of callus on the sole along its circumference looks interval, the lathe bed adopts mineral casting material to make.

In some embodiments of this application, be provided with the Y axle guide rail on the Y axle mounting bracket, Y axle motion includes Y axle drive assembly, crossbeam and Y axle slider, Y axle slider with crossbeam fixed connection, and with Y axle guide rail straight reciprocating motion is connected, Y axle drive assembly respectively with Y axle mounting bracket with the crossbeam is connected, is used for the drive the crossbeam removes along Y axle direction, in order to drive Y axle slider is followed the Y axle guide rail removes.

In some embodiments of the present application, the Y-axis drive assembly includes a Y-axis linear motor primary and a Y-axis linear motor secondary, the Y-axis linear motor primary being mounted on the cross beam, the Y-axis linear motor secondary being mounted on the Y-axis mounting bracket.

In some embodiments of this application, be provided with the X axle guide rail on the crossbeam, X axle motion includes X axle drive assembly, cross slip table and X axle slider, the X axle slider with cross slip table fixed connection, and with X axle guide rail straight reciprocating motion is connected, X axle drive assembly respectively with the crossbeam with the cross slip table is connected, is used for the drive the cross slip table removes along X axle direction, in order to drive X axle slider is followed the X axle guide rail removes.

In some embodiments of the application, X axle drive assembly includes that X axle linear electric motor is elementary and X axle linear electric motor is secondary, X axle linear electric motor is elementary install in on the cross slip table, X axle linear electric motor secondary install in on the crossbeam.

In some embodiments of this application, be provided with Z axle slider on the cross slip table, Z axle motion includes Z axle drive assembly, Z axle slide and Z axle guide rail, Z axle guide rail with Z axle slide fixed connection, and with Z axle slider straight reciprocating motion connects, Z axle drive assembly respectively with the cross slip table with Z axle sliding plate connects, is used for the drive Z axle slide removes along Z axle direction, in order to drive Z axle guide rail is followed Z axle slider removes.

In some embodiments of the present application, the Z-axis driving assembly includes a Z-axis linear motor primary and a Z-axis linear motor secondary, the Z-axis linear motor secondary is installed on the cross sliding table, and the Z-axis linear motor primary is installed on the Z-axis sliding plate.

In some embodiments of the present application, the focusing assembly includes a galvanometer and a field lens, the optical path element, the galvanometer and the field lens are all installed on the Z-axis sliding plate, and the optical path element is connected with the laser and the galvanometer respectively.

In some embodiments of the present application, the five-axis laser processing machine further comprises a Z-axis pneumatic balance assembly, and the Z-axis pneumatic balance assembly is installed between the cross sliding table and the Z-axis sliding plate.

The embodiment of the invention has the following advantages:

the application provides a five-axis laser processing machine tool, processes the work piece through the laser processing system, has reduced manufacturing cost, has improved machining efficiency, has simplified processing technology. The laser processing system is carried by the X-axis motion mechanism, the Y-axis motion mechanism and the Z-axis motion mechanism to respectively perform linear motion in X, Y and Z axis directions. The Y-axis movement mechanism is installed on the machine body, the X-axis movement mechanism is installed on the Y-axis movement mechanism, and the Z-axis movement mechanism is installed on the X-axis movement mechanism, so that the multi-axis linkage function of the five-axis laser processing machine tool is realized. The AC shaft turntable is arranged on the lathe body to realize the function of clamping a workpiece, drives the workpiece to rotate around the C shaft and can drive the workpiece to swing around the A shaft, so that the rotating motion of the processed workpiece in the directions of the A shaft and the C shaft is realized, and the multi-shaft linkage processing function of the five-shaft laser processing machine tool is realized. The light path element is respectively connected with the laser and the focusing assembly, and laser beams generated by the laser are focused on a target processing area through the light path element and the focusing assembly to realize the laser processing function. The X-axis motion mechanism, the Y-axis motion mechanism, the Z-axis motion mechanism and the AC-axis turntable are arranged to respectively perform linkage motion control on the laser processing system and a processed workpiece, so that laser processing molding of a tool with a complex profile and difficulty in processing is realized, and processing efficiency and processing precision are effectively improved.

Specifically, the X-axis movement mechanism, the Y-axis movement mechanism and the Z-axis movement mechanism are driven by direct-drive linear motors, and the AC-axis turntable is driven by direct-drive rotating motors, so that high-speed operation is realized, and the processing precision and the processing efficiency are effectively improved. The technical problems that in the prior art, the X axis, the Y axis and the Z axis of a five-axis laser processing machine tool are driven by adopting a mode of a rotating motor and a ball screw, and a rotary table is driven by using the rotating motor, so that the machining precision, the machining speed and the machining efficiency are influenced by the existence of a reverse clearance are solved.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible and comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 illustrates a perspective view of a five-axis laser machining tool in accordance with certain embodiments of the present application;

FIG. 2 illustrates another perspective view of a five-axis laser machining tool in some embodiments of the present application;

FIG. 3 illustrates a schematic front view of a five-axis laser machining tool in some embodiments of the present application;

FIG. 4 illustrates a top view schematic of a five-axis laser machining tool in some embodiments of the present application.

Description of the main element symbols:

100-five-axis laser processing machine tool; 10-a lathe bed; 101-a base; 1011-foot pad; 102-Y axis mount; 1021-Y-axis rail; 20-a mechanical motion assembly; 201-X axis motion mechanism; 2011-X axis drive assembly; 20111-X axis linear motor primary; 20112-X axis linear motor secondary; 2012-cross slide; 20121-Z axis slider; 2013-X axis slide block; 202-Y axis motion; 2021-Y axis drive assembly; 20211-Y axis linear motor primary; 20212-Y axis linear motor secondary; 2022-cross beam; 20221-X axis guideway; 2023-Y axis slide; 203-Z axis motion mechanism; 2031-Z axis drive assembly; 20311-Z axis linear motor primary; 20312-Z axis linear motor secondary; 2032-Z axis slide; 2033-Z axis guide rails; a 30-AC axis turret; 40-a laser processing system; 401-a laser; 402-optical path elements; 403-a focusing assembly; 4031-galvanometer; 4032-field lens; a 50-Z axis pneumatic balance assembly.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, the present embodiment provides a five-axis laser machining tool 100 mainly used for high-precision laser cutting, drilling, and surface texturing. The five-axis laser machining tool 100 includes a bed 10, a mechanical motion assembly 20, an AC axis turret 30, and a laser machining system 40.

The mechanical motion assembly 20 includes an X-axis motion mechanism 201, a Y-axis motion mechanism 202, and a Z-axis motion mechanism 203, the Y-axis motion mechanism 202 is installed on the bed 10, the X-axis motion mechanism 201 is installed on the Y-axis motion mechanism 202, and the Z-axis motion mechanism 203 is installed on the X-axis motion mechanism 201. The AC shaft rotating table 30 is mounted on the lathe bed 10 and used for clamping a workpiece, the AC shaft rotating table 30 drives the workpiece to rotate around a C shaft, the AC shaft rotating table 30 drives the workpiece to swing around an A shaft, and the axis direction of the workpiece is parallel to the C shaft. The laser processing system 40 comprises a laser 401, a light path element 402 and a focusing assembly 403, the laser 401 is mounted on the bed 10, the light path element 402 and the focusing assembly 403 are mounted on the Z-axis movement mechanism 203, and the light path element 402 is respectively connected with the laser 401 and the focusing assembly 403.

The five-axis laser processing machine tool 100 provided by the embodiment of the application carries the laser processing system 40 through the X-axis movement mechanism 201, the Y-axis movement mechanism 202 and the Z-axis movement mechanism 203 to respectively perform linear movement in the X, Y and Z-axis directions. The Y-axis movement mechanism 202 is mounted on the lathe bed 10, the X-axis movement mechanism 201 is mounted on the Y-axis movement mechanism 202, and the Z-axis movement mechanism 203 is mounted on the X-axis movement mechanism 201, so that the multi-axis linkage function of the five-axis laser processing machine 100 is realized. The AC shaft turntable 30 is mounted on the lathe bed 10 to realize the function of clamping a workpiece, the axis direction of the workpiece is parallel to the C axis, the AC shaft turntable 30 drives the workpiece to rotate around the C axis and can drive the workpiece to swing around the A axis, the rotating motion of the processed workpiece in the directions of the A axis and the C axis is realized, and therefore the multi-axis linkage processing function of the five-axis laser processing machine tool 100 is realized. Illustratively, the workpiece is a raw material of a cutter, and the adopted material can be ultrafine cemented carbide, advanced coating cemented carbide, ceramic, polycrystalline diamond (PCD) or Polycrystalline Cubic Boron Nitride (PCBN).

Referring to fig. 4, the laser 401 is mounted on the bed 10, the optical path element 402 and the focusing assembly 403 are mounted on the Z-axis moving mechanism 203, the optical path element 402 is connected to the laser 401 and the focusing assembly 403, respectively, and the laser beam generated by the laser 401 is focused on the target processing area through the optical path element 402 and the focusing assembly 403 to realize the laser processing function. The X-axis motion mechanism 201, the Y-axis motion mechanism 202, the Z-axis motion mechanism 203 and the AC-axis turntable 30 are arranged to respectively perform linkage motion control on the laser processing system 40 and a processed workpiece, so that laser processing forming of a complex-profile tool difficult to process is realized, and processing efficiency and processing precision are effectively improved.

Specifically, the X-axis movement mechanism 201, the Y-axis movement mechanism 202, and the Z-axis movement mechanism 203 are all driven by direct-drive linear motors, and the AC-axis turntable 30 is driven by direct-drive rotating motors, so that high-speed operation is realized, and the processing precision and the processing efficiency are effectively improved. The technical problems that in the prior art, the X axis, the Y axis and the Z axis of a five-axis laser processing machine tool are driven by adopting a mode of a rotating motor and a ball screw, and a rotary table is driven by using the rotating motor, so that the machining precision, the machining speed and the machining efficiency are influenced by the existence of a reverse clearance are solved.

It should be noted that, compared with the conventional transmission mode of a rotating electric machine and a ball screw, the direct-drive linear motor and the direct-drive rotating electric machine have the following advantages: the speed is high, and the maximum feeding speed can reach 100-200 m/min at present; high acceleration up to 20-100 m/s ² (ii) a High positioning accuracy, its theoretical positioning accuracy can be zero due to closed-loop control, but its actual positioning accuracy can not be zero due to the installation and measurement error of detection element, and its highest positioning accuracyThe precision can reach 0.1 mu m; the length of the feeding stroke is not limited; the structure is simple, the electromagnetic thrust is used for driving, the movement is safe, the noise is low, and the working environment is improved; the motor has good protection performance and can work under severe conditions; the linear motor servo mechanism has the greatest advantages of no abrasion problem of intermediate links, simple system maintenance and good reliability.

As shown in fig. 1, 2 and 3, in an embodiment of the present application, optionally, the bed 10 includes a base 101 and two Y-axis mounting frames 102, the two Y-axis mounting frames 102 are mounted on the base 101 at intervals, the AC-axis turntable 30 is mounted on the base 101, the Y-axis moving mechanism 202 is mounted on the Y-axis mounting frame 102, a plurality of foot pads 1011 are disposed at intervals along a circumferential direction of the base 101, and the bed 10 is made of a mineral casting material.

In the present embodiment, the bed 10 includes a base 101 and two Y-axis mounts 102. The two Y-axis mounts 102 are mounted on the base 101 at intervals, and the two Y-axis mounts 102 may also be integrally formed with the base 101 for supporting the mechanical movement assembly 20, the AC axis turntable 30 and the laser processing system 40. The AC shaft turntable 30 is arranged on the base 101, and the Y-axis movement mechanism 202 is arranged on the Y-axis mounting frame 102, so that stable connection is realized, and the transmission stability is improved.

Specifically, the Y-axis motion mechanism 202 is movable on the Y-axis mount 102 in the direction of the Y-axis. Through set up a plurality of callus on the sole 1011 at the bottom of base 101 along its circumference looks interval ground, a plurality of callus on the sole 1011 contacts with base 101 and ground respectively, plays and adjusts five laser process machine 100 levels or reduces the effect that the vibrational force is spread outward and is guaranteed processing size precision and quality. The foot pad 1011 can be placed on the ground without fixation, and the base 101 can be fixed relative to the ground through the foot pad 1011 by anchor bolts.

It should be noted that, in the prior art, a bed body of a five-axis laser processing machine tool is usually made of cast iron, and the bed body made of cast iron contains residual stress, and the residual stress is gradually released in the using process of the machine tool, so that the processing precision of the machine tool gradually deteriorates. Therefore, the bed 10 of the five-axis laser processing machine tool 100 provided by the embodiment of the present application is made of a mineral casting material, the mineral casting material has good vibration damping performance, and the damping characteristic of the mineral casting material is about ten times that of a cast iron material, so that the influence of the machine tool vibration on the machine tool processing precision during the machine tool processing can be greatly reduced. The mineral casting material has excellent thermal stability, small residual stress concentration inside the mineral casting material and high forming precision.

As shown in fig. 1, 2 and 4, in the above embodiment of the present application, optionally, a Y-axis guide 1021 is disposed on the Y-axis mounting bracket 102, the Y-axis moving mechanism 202 includes a Y-axis driving assembly 2021, a cross beam 2022 and a Y-axis slider 2023, the Y-axis slider 2023 is fixedly connected to the cross beam 2022 and is linearly and reciprocally connected to the Y-axis guide 1021, and the Y-axis driving assembly 2021 is respectively connected to the Y-axis mounting bracket 102 and the cross beam 2022 and is configured to drive the cross beam 2022 to move along the Y-axis direction, so as to drive the Y-axis slider 2023 to move along the Y-axis guide 1021.

In this embodiment, the Y-axis mount 102 is provided with a Y-axis guide 1021, and the Y-axis moving mechanism 202 includes a Y-axis driving assembly 2021, a cross beam 2022 and a Y-axis slider 2023. The Y-axis slider 2023 is fixedly connected to the cross beam 2022 and is linearly connected to the Y-axis guide rail 1021 in a reciprocating manner, and the Y-axis slider 2023 and the Y-axis guide rail 1021 may also be connected by a roller, so that the cross beam 2022 can move along the Y-axis guide rail 1021 through the Y-axis slider 2023, thereby realizing the movement of the Y-axis movement mechanism 202 along the Y-axis direction.

Specifically, the Y-axis driving assembly 2021 is connected to the Y-axis mounting frame 102 and the cross beam 2022, respectively, and is configured to drive the cross beam 2022 to move along the Y-axis direction, so as to drive the Y-axis slider 2023 to move along the Y-axis guide rail 1021, thereby implementing the movement of the Y-axis movement mechanism 202 along the Y-axis direction as a whole. By arranging the Y-axis driving assembly 2021, the Y-axis motion mechanism 202 can automatically and controllably move along the Y-axis direction, and the processing precision and the processing efficiency are improved.

As shown in fig. 1, 2 and 4, in the above embodiment of the present application, optionally, the Y-axis driving assembly 2021 includes a Y-axis linear motor primary 20211 and a Y-axis linear motor secondary 20212, the Y-axis linear motor primary 20211 is mounted on the cross beam 2022, and the Y-axis linear motor secondary 20212 is mounted on the Y-axis mounting bracket 102.

In this embodiment, the Y-axis drive assembly 2021 includes a Y-axis linear motor primary 20211 and a Y-axis linear motor secondary 20212. The Y-axis linear motor primary 20211 is mounted to the cross beam 2022, and the Y-axis linear motor secondary 20212 is mounted to the Y-axis mount 102. Specifically, the Y-axis linear motor primary 20211 corresponds to a rotor portion of the rotating electrical machine, the Y-axis linear motor secondary 20212 corresponds to a stator portion of the rotating electrical machine, the Y-axis linear motor secondary 20212 is fixed to the Y-axis mounting bracket 102, and the Y-axis linear motor primary 20211 can perform linear motion along the direction of the traveling magnetic field motion, so that the Y-axis linear motor primary 20211 moves along the Y-axis direction, and the cross beam 2022 is driven to move along the Y-axis direction. The linear motor can directly convert electric energy into linear motion mechanical energy without any intermediate conversion transmission device, and can realize high-precision and high-speed linear motion.

As shown in fig. 1, 2 and 3, in the above embodiment of the present application, optionally, an X-axis guide rail 20221 is disposed on the cross beam 2022, the X-axis movement mechanism 201 includes an X-axis driving assembly 2011, a cross sliding table 2012 and an X-axis slider 2013, the X-axis slider 2013 is fixedly connected to the cross sliding table 2012 and is connected to the X-axis guide rail 20221 in a linear reciprocating manner, and the X-axis driving assembly 2011 is respectively connected to the cross beam 2022 and the cross sliding table 2012 and is configured to drive the cross sliding table 2012 to move along the X-axis direction, so as to drive the X-axis slider 2013 to move along the X-axis guide rail 20221.

In the present embodiment, the cross beam 2022 is provided with an X-axis guide 20221, and the X-axis moving mechanism 201 includes an X-axis driving assembly 2011, a cross slide 2012 and an X-axis slider 2013. The X-axis slider 2013 is fixedly connected with the cross sliding table 2012 and is connected with the X-axis guide rail 20221 in a linear reciprocating motion manner, and the X-axis slider 2013 is connected with the X-axis guide rail 20221 in a rolling manner through a roller, so that the cross sliding table 2012 can move along the X-axis guide rail 20221 through the X-axis slider 2013, and the X-axis movement mechanism 201 can move along the X-axis direction.

Specifically, the X-axis driving assembly 2011 is respectively connected to the cross beam 2022 and the cross slide table 2012 and is configured to drive the cross slide table 2012 to move along the X-axis direction, so as to drive the X-axis slider 2013 to move along the X-axis guide rail 20221, thereby realizing that the X-axis movement mechanism 201 integrally moves along the X-axis direction. By arranging the X-axis driving assembly 2011, the X-axis movement mechanism 201 automatically and controllably moves along the X-axis direction, the linkage of the X-axis movement mechanism 201 and the Y-axis movement mechanism 202 is realized, and the processing precision and the processing efficiency are improved.

As shown in fig. 1, 2 and 4, in the above-mentioned embodiment of the present application, optionally, the X-axis driving assembly 2011 includes an X-axis linear motor primary 20111 and an X-axis linear motor secondary 20112, the X-axis linear motor primary 20111 is installed on the cross slide 2012, and the X-axis linear motor secondary 20112 is installed on the cross beam 2022.

In the present embodiment, the X-axis drive assembly 2011 includes an X-axis linear motor primary 20111 and an X-axis linear motor secondary 20112. The X-axis linear motor primary 20111 is mounted on the cross sliding table 2012, and the X-axis linear motor secondary 20112 is mounted on the cross beam 2022. Specifically, the elementary 20111 of X axle linear electric motor is equivalent to the rotor part of rotating electrical machines, and X axle linear electric motor secondary 20112 is equivalent to rotating electrical machines's stator part, and the elementary 20111 of X axle linear electric motor fixes motionless on crossbeam 2022, and the elementary 20111 of X axle linear electric motor can be linear motion along the direction of travelling wave magnetic field motion for the elementary 20111 of X axle linear electric motor moves along X axle direction, thereby drives cross slip table 2012 and removes along X axle direction. The linear motor can directly convert electric energy into linear motion mechanical energy without any intermediate conversion transmission device, and can realize high-precision and high-speed linear motion.

As shown in fig. 1, fig. 2 and fig. 4, in the above embodiment of the present application, optionally, a Z-axis slider 20121 is disposed on the cross sliding table 2012, the Z-axis movement mechanism 203 includes a Z-axis driving component 2031, a Z-axis sliding plate 2032 and a Z-axis guiding rail 2033, the Z-axis guiding rail 2033 is fixedly connected to the Z-axis sliding plate 2032 and is connected to the Z-axis slider 20121 in a linear reciprocating manner, and the Z-axis driving component 2031 is respectively connected to the cross sliding table 2012 and the Z-axis sliding plate 2032 and is configured to drive the Z-axis sliding plate 2032 to move along the Z-axis direction, so as to drive the Z-axis guiding rail 2033 to move along the Z-axis slider 20121.

In this embodiment, a Z-axis slider 20121 is disposed on the cross saddle 2012, and the Z-axis moving mechanism 203 includes a Z-axis driving unit 2031, a Z-axis sliding plate 2032, and a Z-axis guide rail 2033. The Z-axis guide rail 2033 is fixedly connected to the Z-axis sliding plate 2032 and is connected to the Z-axis slider 20121 for linear reciprocating motion, and the Z-axis slider 20121 is connected to the Z-axis guide rail 2033 by rolling a roller, so that the Z-axis sliding plate 2032 can move along the Z-axis slider 20121 through the Z-axis guide rail 2033, and the Z-axis movement mechanism 203 can move along the Z-axis direction.

Specifically, the Z-axis driving assembly 2031 is connected to the cross slip table 2012 and the Z-axis sliding plate 2032 respectively, and is configured to drive the Z-axis sliding plate 2032 to move along the Z-axis direction, so as to drive the Z-axis guide rail 2033 to move along the Z-axis slider 20121, thereby realizing that the Z-axis moving mechanism 203 moves along the Z-axis direction as a whole. By arranging the Z-axis driving assembly 2031, the Z-axis movement mechanism 203 automatically and controllably moves along the Z-axis direction, so that the X-axis movement mechanism 201, the Y-axis movement mechanism 202 and the Z-axis movement mechanism 203 realize multi-axis linkage, and the processing precision and the processing efficiency are improved.

As shown in fig. 1, fig. 2 and fig. 4, in the above embodiment of the present application, optionally, the Z-axis driving assembly 2031 includes a Z-axis linear motor primary 20311 and a Z-axis linear motor secondary 20312, the Z-axis linear motor secondary 20312 is mounted on the cross slide 2012, and the Z-axis linear motor primary 20311 is mounted on the Z-axis sled 2032.

In this embodiment, the Z-axis drive assembly 2031 includes a Z-axis linear motor primary 20311 and a Z-axis linear motor secondary 20312. The Z-axis linear motor secondary 20312 is mounted on the cross slide 2012, and the Z-axis linear motor primary 20311 is mounted on the Z-axis sled 2032. Specifically, the primary Z-axis linear motor 20311 is equivalent to a rotor portion of the rotating electrical machine, the secondary Z-axis linear motor 20312 is equivalent to a stator portion of the rotating electrical machine, the secondary Z-axis linear motor 20312 is fixed on the cross sliding table 2012 without movement, and the primary Z-axis linear motor 20311 can move linearly along the direction of the traveling wave magnetic field movement, so that the primary Z-axis linear motor 20311 moves along the Z-axis direction, and the Z-axis sliding plate 2032 is driven to move along the Z-axis direction. The linear motor can directly convert electric energy into linear motion mechanical energy without any intermediate conversion transmission device, and can realize high-precision and high-speed linear motion.

As shown in fig. 1 and fig. 2, in the above embodiment of the present application, optionally, the focusing assembly 403 includes a galvanometer 4031 and a field mirror 4032, the optical path element 402, the galvanometer 4031 and the field mirror 4032 are all mounted on the Z-axis sliding plate 2032, and the optical path element 402 is connected to the laser 401 and the galvanometer 4031, respectively.

In the present embodiment, the focusing assembly 403 includes a galvanometer 4031 and a field mirror 4032. The optical path element 402, the galvanometer 4031 and the field mirror 4032 are all mounted on the Z-axis sled 2032 and can move synchronously with the Z-axis sled 2032, and the optical path element 402 is connected to the laser 401 and the galvanometer 4031, respectively. Specifically, the laser beam generated by the laser 401 is focused on the target processing area through the optical path element 402, the galvanometer 4031 and the field mirror 4032, so as to realize the laser processing function. The X-axis motion mechanism 201, the Y-axis motion mechanism 202, the Z-axis motion mechanism 203 and the AC-axis turntable 30 are arranged to respectively perform linkage motion control on the laser processing system 40 and a processed workpiece, so that laser processing forming of a complex-profile tool difficult to process is realized, processing efficiency and processing precision are effectively improved, and processing quality is improved.

As shown in fig. 1, 2 and 4, in the above embodiment of the present application, optionally, the five-axis laser processing machine 100 further includes a Z-axis pneumatic balance assembly 50, and the Z-axis pneumatic balance assembly 50 is installed between the cross slide 2012 and the Z-axis sliding plate 2032.

In this embodiment, five-axis laser machining tool 100 also includes a Z-axis pneumatic balancing assembly 50. Wherein, the pneumatic balanced subassembly 50 of Z axle is installed between cross slip table 2012 and Z axle slide 2032, plays the effect of balanced Z axle motion 203 weight for the motion of Z axle motion 203 is more steady, has further improved machining precision and processingquality, has prolonged life.

To sum up, the five-axis laser processing machine tool provided by the application processes the workpiece through the laser processing system, reduces the manufacturing cost, improves the processing efficiency and simplifies the processing technology. The laser processing system is carried by the X-axis motion mechanism, the Y-axis motion mechanism and the Z-axis motion mechanism to respectively perform linear motion in X, Y and Z axis directions. The Y-axis movement mechanism is arranged on the machine body, the X-axis movement mechanism is arranged on the Y-axis movement mechanism, and the Z-axis movement mechanism is arranged on the X-axis movement mechanism, so that the multi-axis linkage function of the five-axis laser processing machine tool is realized. The AC shaft turntable is arranged on the lathe body to realize the function of clamping a workpiece, drives the workpiece to rotate around the C shaft and can drive the workpiece to swing around the A shaft, so that the rotating motion of the processed workpiece in the directions of the A shaft and the C shaft is realized, and the multi-shaft linkage processing function of the five-shaft laser processing machine tool is realized. The light path element is respectively connected with the laser and the focusing assembly, and laser beams generated by the laser are focused on a target processing area through the light path element and the focusing assembly to realize the laser processing function. The X-axis motion mechanism, the Y-axis motion mechanism, the Z-axis motion mechanism and the AC-axis turntable are arranged to respectively perform linkage motion control on the laser processing system and a processed workpiece, so that laser processing molding of a tool with a complex profile and difficulty in processing is realized, and processing efficiency and processing precision are effectively improved.

Specifically, the X-axis movement mechanism, the Y-axis movement mechanism and the Z-axis movement mechanism are driven by direct-drive linear motors, and the AC-axis turntable is driven by direct-drive rotating motors, so that high-speed operation is realized, and the processing precision and the processing efficiency are effectively improved. The technical problems that in the prior art, the X axis, the Y axis and the Z axis of a five-axis laser processing machine tool are driven by adopting a rotating motor and a ball screw, and a rotary table is driven by using the rotating motor, so that the machining precision, the machining speed and the machining efficiency are influenced by the existence of reverse gaps are solved.

In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. A five-axis laser processing machine tool, comprising:

a bed body;

2. The five-axis laser processing machine tool according to claim 1, wherein the machine body comprises a base and two Y-axis mounting frames, the two Y-axis mounting frames are mounted on the base at intervals, the AC-axis turntable is mounted on the base, the Y-axis motion mechanism is mounted on the Y-axis mounting frames, a plurality of foot pads are arranged at the bottom of the base at intervals along the circumferential direction of the base, and the machine body is made of a mineral casting material.

3. The five-axis laser processing machine tool according to claim 2, wherein a Y-axis guide rail is arranged on the Y-axis mounting frame, the Y-axis movement mechanism comprises a Y-axis driving assembly, a cross beam and a Y-axis slider, the Y-axis slider is fixedly connected with the cross beam and is connected with the Y-axis guide rail in a linear reciprocating motion, and the Y-axis driving assembly is respectively connected with the Y-axis mounting frame and the cross beam and is used for driving the cross beam to move along the Y-axis direction so as to drive the Y-axis slider to move along the Y-axis guide rail.

4. The five-axis laser machining tool of claim 3, wherein the Y-axis drive assembly includes a Y-axis linear motor primary and a Y-axis linear motor secondary, the Y-axis linear motor primary mounted on the cross beam, the Y-axis linear motor secondary mounted on the Y-axis mount.

5. The five-axis laser processing machine tool according to claim 3, wherein an X-axis guide rail is arranged on the cross beam, the X-axis movement mechanism comprises an X-axis driving assembly, a cross sliding table and an X-axis slider, the X-axis slider is fixedly connected with the cross sliding table and is connected with the X-axis guide rail in a linear reciprocating motion manner, and the X-axis driving assembly is respectively connected with the cross beam and the cross sliding table and is used for driving the cross sliding table to move along the X-axis direction so as to drive the X-axis slider to move along the X-axis guide rail.

6. The five-axis laser processing machine tool according to claim 5, wherein the X-axis drive assembly comprises an X-axis linear motor primary and an X-axis linear motor secondary, the X-axis linear motor primary is mounted on the cross slide, and the X-axis linear motor secondary is mounted on the cross beam.

7. The five-axis laser processing machine tool according to claim 5, wherein a Z-axis slider is arranged on the cross sliding table, the Z-axis movement mechanism comprises a Z-axis driving assembly, a Z-axis sliding plate and a Z-axis guide rail, the Z-axis guide rail is fixedly connected with the Z-axis sliding plate and is connected with the Z-axis slider in a linear reciprocating motion manner, and the Z-axis driving assembly is respectively connected with the cross sliding table and the Z-axis sliding plate and is used for driving the Z-axis sliding plate to move along the Z-axis direction so as to drive the Z-axis guide rail to move along the Z-axis slider.

8. The five-axis laser processing machine tool according to claim 7, wherein the Z-axis drive assembly comprises a Z-axis linear motor primary and a Z-axis linear motor secondary, the Z-axis linear motor secondary is mounted on the cross slide, and the Z-axis linear motor primary is mounted on the Z-axis slide.

9. The five-axis laser processing machine tool according to claim 7, wherein the focusing assembly comprises a galvanometer and a field lens, the optical path element, the galvanometer and the field lens are all mounted on the Z-axis sliding plate, and the optical path element is respectively connected with the laser and the galvanometer.

10. The five-axis laser processing machine of claim 7, further comprising a Z-axis pneumatic balancing assembly mounted between the cross slide and the Z-axis slide.