阅读说明：本技术 一种四轴并联五头激光抛光机 (Four-axis parallel five-head laser polishing machine ) 是由 王涛 贺国阳 郭玲 于 2019-12-06 设计创作，主要内容包括：目前随着科技的进步和人民生活水平的提高,对产品的需求量不断增加,这就需要提高产品的生产速度,细化到产品抛光工艺上,就得提高抛光效率,单个或双个激光发射源已经不能满足需求,为此本专利提出一种四轴并联五头激光抛光机,本发明涉及一种激光抛光装置,尤其涉及一种四轴并联五头激光抛光装置。主要包含基于嵌入式激光功率控制系统、多头激光抛光系统、一键启动控制电路系统、四轴并联数控伸缩杆结构等,通过计算机软件连接激光脉宽功率调制卡,实现对高功率光纤激光器系统的精确控制,完成复杂工件的表面处理,并通过表面粗糙度检测仪传感器实时反馈工件表面的粗糙度值。(At present, with the improvement of science and technology and the improvement of the living standard of people, the demand of products is continuously increased, the production speed of the products needs to be improved, the polishing efficiency is improved by refining the product polishing process, and a single or double laser emission sources can not meet the demand. The system mainly comprises an embedded laser power control system, a multi-head laser polishing system, a one-key starting control circuit system, a four-axis parallel numerical control telescopic rod structure and the like, wherein a laser pulse width power modulation card is connected through computer software to realize the accurate control of a high-power optical fiber laser system, complete the surface treatment of a complex workpiece, and feed back the roughness value of the surface of the workpiece in real time through a surface roughness detector sensor.)

1. The utility model provides a parallelly connected five laser beam polishing machines of four-axis, characterized in that: the laser scanning device is provided with four horizontal four-axis parallel laser scanning heads of east, south, west and north, a vertical four-axis parallel laser scanning head is arranged above a polishing piece, the four-axis parallel laser scanning head is formed as follows, the laser scanner is connected to a laser device body through a connecting piece, the laser device body is fixed on a four-axis parallel connecting plate through a triangular supporting plate, four numerical control telescopic rods are arranged below a four-axis parallel linkage plate, a base plate is arranged below the four numerical control telescopic rods, the linkage plate and the four numerical control telescopic rods and the base plate form a four-axis parallel structure, the upper ends of the numerical control telescopic rods are connected and fixed on four corners of the parallel linkage plate through universal hinge supports, the lower ends of the numerical control telescopic rods are connected and fixed on the base plate through the universal hinge supports, the tail end of the laser device body of the vertical four-axis parallel laser scanning head is fixed on, the support steel upright posts are fixed with the parallel linkage plate through support steel upright post flange plates and are fixed by six M8 countersunk head screws to form a vertical four-axis parallel laser scanning head.

2. The four-axis parallel five-head laser polishing machine according to claim 1, wherein: the workpiece is placed on a rotatable workbench, the positions of five laser heads are adjusted, then a green button started by a key is pressed, the whole device can be powered on and enters a working state, then a computer is started to run software, parameters are adjusted, the device starts to work, in the working process, the surface roughness detector can monitor the roughness of the surface of the workpiece in real time and transmit real-time data back to the computer, after the workpiece is processed, a worker closes the computer firstly, then a red button started by a key is pressed, and at the moment, the device is completely powered off.

The technical field is as follows:

the invention relates to a laser polishing device, in particular to a four-axis parallel five-head laser polishing device.

Secondly, background art:

conventional polishing refers to a processing method in which the surface roughness of a workpiece is reduced by the action of machinery, chemical engineering or electrochemistry to obtain a bright and flat surface, and a finishing process is performed on the surface of the workpiece by using a polishing tool and abrasive particles or other polishing media. With the progress of science and technology, laser polishing is mostly adopted at present, the laser polishing is processed by utilizing the interaction between laser and the surface of a material, the action mode between the laser and the material has thermal action and photochemical action, and the laser polishing can be divided into thermal polishing and cold polishing. The laser polishing is a non-contact type polishing, can polish a plane and various curved surfaces, has small environmental pollution, can realize local polishing, and is particularly suitable for the precise processing of superhard materials and ultra-brittle materials.

However, with the improvement of science and technology and the improvement of the living standard of people, the demand of products is continuously increased, the production speed of the products needs to be increased, the polishing efficiency needs to be improved by refining the products to the product polishing process, and a single or double laser emission sources cannot meet the demand.

Thirdly, the invention content:

the invention relates to a laser polishing device, in particular to a four-axis parallel five-head laser polishing machine. The system mainly comprises an embedded laser power control system, a multi-head laser polishing system, a one-key starting control circuit system, a four-axis parallel numerical control telescopic rod structure and the like.

The structure I is as follows: setting based on embedded laser power control system

Aiming at the defects of large hardware design volume, high cost and the like of the traditional laser power stabilizing system, the laser power stabilizing system adopts a laser power automatic control system based on an embedded technology, the system hardware comprises an A/D converter, an embedded FPGA serving as a controller, a PD back photodetector, a low-pass filter and the like, after the acquisition and conversion of laser power signals and the automatic control of laser power are completed, software adopts a PWM algorithm to complete the operational control of system software, and a singlechip power control method is adopted to enhance the stability of laser power control and realize the automatic control of the laser power.

The structure II is as follows: four-axis parallel numerical control telescopic rod structure

Four numerical control telescopic links constitute four-axis parallel structure, the telescopic link upper end is fixed with the parallel linkage board through universal hinge support, the telescopic link bottom is connected to parallelly connected base plate through universal hinge support, the laser instrument organism passes through the triangle extension board and fixes on the four-axis parallel linkage board, and thus the four-axis parallel structure is constituteed according to telescopic link and base plate to linkage board and four numbers, embedded singlechip is with regard to operating speed and the working stroke of motor in the every telescopic link of accessible PWM pulse width modulation algorithm control real-time pulse, and then the scanning range of control regulation laser head, thereby increase the work scanning efficiency of each laser instrument, the work efficiency of whole equipment has been improved greatly.

The structure is three: setting a multi-head laser polishing system

The multi-head laser polishing system comprises five independent laser units, wherein each laser unit comprises a laser scanner, a field lens, red light, a high-power continuous optical fiber laser, a laser power supply, a laser scanner power supply, a red light power supply, a laser head connecting piece and other hardware, wherein the four horizontal four-axis parallel laser scanning heads and one vertical four-axis parallel laser scanning head are formed. Laser polishing is mainly divided into hot polishing and cold polishing, and is divided into hot melting polishing and hot evaporation polishing according to different main effects of hot polishing on metals. The high-power continuous laser is adopted in the patent, a thermal evaporation polishing mechanism is adopted, and the laser continuously emits laser with extremely high peak power, so that the surface temperature of a processed material is higher than the boiling point of the material.

The structure is four: one-key start control circuit system and related components

Set up a key start control circuit system and mainly by ac contactor, two (one is the red light) of contact switch of tape light, one is the green light, binding post, the mirror power that shakes (taking 5 way output), hardware such as laser power supply constitutes, the end of power cord must pass through binding post and connect ac contactor and electric shock switch, adopt a key start control circuit can not only make things convenient for operating personnel to operate, but also can avoid the emergence of incident, after operating personnel stop work, only need press red button can all powers of disconnect-type equipment, the security performance of equipment has been improved greatly.

The four-axis parallel five-head laser polishing machine is formed by combining the above structures.

The core content of the invention is as follows: the laser scanning device is provided with four horizontal four-axis parallel laser scanning heads of east, south, west and north, a vertical four-axis parallel laser scanning head is arranged above a polishing piece, the four-axis parallel laser scanning head is formed as follows, the laser scanner is connected to a laser device body through a connecting piece, the laser device body is fixed on a four-axis parallel connecting plate through a triangular supporting plate, four numerical control telescopic rods are arranged below a four-axis parallel linkage plate, a base plate is arranged below the four numerical control telescopic rods, the linkage plate and the four numerical control telescopic rods and the base plate form a four-axis parallel structure, the upper ends of the numerical control telescopic rods are connected and fixed on four corners of the parallel linkage plate through universal hinge supports, the lower ends of the numerical control telescopic rods are connected and fixed on the base plate through the universal hinge supports, the tail end of the laser device body of the vertical four-axis parallel laser scanning head is fixed on, the support steel upright posts are fixed with the parallel linkage plate through support steel upright post flange plates and are fixed by six M8 countersunk head screws to form a vertical four-axis parallel laser scanning head.

The method comprises the steps of placing a workpiece on a rotatable workbench, controlling the spatial positions of five laser heads in parallel, then pressing a green button started by a key, starting equipment, operating software of a computer, adjusting the spatial position parameters of the five laser heads in parallel control, starting the operation of four horizontal four-axis parallel laser scanning heads and four vertical four-axis parallel laser scanning heads, monitoring the roughness of the surface of the workpiece in real time by a surface roughness detector in the working process, transmitting the real-time data back to the computer, and feeding back to be qualified.

The four-axis parallel numerical control telescopic rod system is arranged, every four numerical control telescopic rods are a unit, the direction of a laser is jointly borne and adjusted, the working stroke and the speed of a motor in each telescopic rod are controlled through a PWM (pulse width modulation) algorithm and a motor driver, the service life of the motor can be prolonged, the telescopic rods can be stably driven, and the direction of a linkage plate can be modulated, so that the aim of adjusting the scanning range of a laser head is fulfilled.

Description of the drawings:

the attached drawings are a structural diagram and a control schematic diagram of the invention, and respectively comprise: fig. 1 is a general structure diagram of the patent, fig. 2 is a four-axis parallel laser head structure, fig. 3 is a right side view of a partial structure, fig. 4 is a circuit diagram of a one-key start control, wherein: 1. the laser scanning device comprises a laser device body, 2 a control computer, 3 a control cabinet, 4 a computer and laser device connecting cable, 5 a parallel base plate, 6 a workbench supporting block, 7 a rotatable workbench, 8 a workpiece, 9 a surface roughness and super-height measuring instrument, 10 a laser scanner, 11 a laser field lens, 12 a connecting cylinder, 13 a parallel linkage plate, 14 a laser device data cable, 15 a universal hinge support, 16 a numerical control telescopic rod, 17 a telescopic rod power line, 18 a supporting steel beam, 19 a supporting steel upright post, 20 a supporting steel upright post flange plate, 21 a south horizontal four-axis parallel laser scanning head, 22 a west horizontal four-axis parallel laser scanning head, 23 a vertical four-axis parallel laser scanning head, 24 an east horizontal four-axis parallel laser scanning head, 25 a north horizontal four-axis parallel laser scanning head and 26 an angle-adjustable fixed chain.

Fourthly, the specific implementation mode:

the specific implementation mode of the invention is as follows: four horizontal four-axis parallel laser scanning heads of east, south, west and north are arranged, a vertical four-axis parallel laser scanning head 24 is arranged above a polishing piece, the four-axis parallel laser scanning head is formed as follows, a laser scanner 10 is connected to a laser machine body 1 through a connecting piece 12, the laser machine body is fixed on a four-axis parallel connecting plate 13 through a triangular supporting plate, four numerical control telescopic rods 16 are arranged below a four-axis parallel linkage plate 13, a base plate 5 is arranged below the four numerical control telescopic rods 16, the four parallel linkage plate 13 and four numerical control telescopic rods 16 form a four-axis parallel structure with the base plate 5 according to the telescopic rods 16, the upper end of the numerical control telescopic rod 16 is fixedly connected on four corners of the parallel linkage plate 13 through universal hinge supports 15, the lower end of the numerical control telescopic rod 16 is fixedly connected on the base plate 5 through the universal hinge supports 15, the tail end of the laser machine, the other end of the steel beam is hinged to a supporting steel upright post 19 through a fixed angle-adjustable hinge 26, the supporting steel upright post 19 is fixed with the parallel linkage plate 13 through a supporting steel upright post flange plate 20, and six M8 countersunk head screws are adopted for fixing to form a vertical four-axis parallel laser scanning head 24. A laser data cable 14 extends from the rear end of the laser body and is extendedly connected to the laser power pulse modulation card in the control cabinet 3.

The working process is as follows: the workpiece is placed on a rotatable workbench, the positions of five laser heads are adjusted, then a green button started by one key is pressed, the whole device can be powered on and enters a working state, then a computer is started to run software, parameters are adjusted, the device starts to work, in the working process, the surface roughness detector can monitor the roughness of the surface of the workpiece in real time and transmit real-time data back to the computer, after the workpiece is machined, the computer is firstly closed, then a red button started by one key is pressed, and at the moment, the device is completely powered off.

The one-key starting circuit is arranged, so that the requirement that a main power line is connected with 220V voltage, the red light is indicated to be turned on, when the starting device is prepared to work, after the green button is pressed down, the green light is turned on, the red light is turned off, the main contact of the alternating current contactor is attracted, the whole device is powered on, after the device stops working, the red button is pressed down again, the red light is turned on, the green light is turned off, the main contact of the alternating current contactor is separated, the whole device is powered off, and a specific connecting circuit diagram is shown in figure 4 at the end of the specification.