CN110539074B

CN110539074B - High-efficient multi freedom ultrasonic vibration assists two-sided laser beam machining device

Info

Publication number: CN110539074B
Application number: CN201911002907.0A
Authority: CN
Inventors: 刘畅; 张先泽; 徐炜玮; 高磊
Original assignee: Tianjin Polytechnic University
Current assignee: Tianjin Polytechnic University
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2021-01-22
Anticipated expiration: 2039-10-18
Also published as: CN110539074A

Abstract

The invention discloses a high-efficiency multi-degree-of-freedom ultrasonic vibration auxiliary double-sided laser processing device which comprises a rack, an automatic feeding and discharging device, a double-sided laser processing device, a three-degree-of-freedom moving device, an ultrasonic vibration auxiliary device, an auxiliary blowing device, a controller and a monitoring device. The automatic loading and unloading device can automatically move the workpiece to each working position; the double-sided laser processing device can realize simultaneous processing of two sides of a workpiece, reduce the taper of the workpiece after processing and also can carry out single-sided laser processing; the three-degree-of-freedom moving device can realize the rapid movement of the workpiece; the ultrasonic vibration auxiliary device can realize three-degree-of-freedom vibration of a workpiece, and reduces the defects of a recasting layer, oxides, microcracks and the like in the laser processing process; the auxiliary blowing device adopts coaxial and paraxial blowing, and can reduce the splashing of the melt during processing. The invention has the advantages of reliable work, high automation degree, diversified functions, convenient maintenance, high working efficiency, high workpiece processing quality, strong applicability and the like.

Description

High-efficient multi freedom ultrasonic vibration assists two-sided laser beam machining device

Technical Field

The invention belongs to the field of ultrasonic vibration composite laser processing, and particularly relates to a high-efficiency multi-degree-of-freedom ultrasonic vibration auxiliary double-sided laser processing device.

Background

With the continuous development of laser processing technology, lasers have been applied to the processing of various materials, such as metals, polymers, composite materials, etc.; in the current research, it has been proved that the laser processing has good applicability to the materials with high melting point, high brittleness and high melting point which are difficult to process, for example, the processing quality is high, the processing efficiency is high, the range of the processing materials is wide, and the micropore processing can be realized; due to these excellent characteristics of laser machining, it has been applied to high-end aviation related fields.

In recent years, a lot of studies have been made on laser processing by some researchers, for example, patent (201721633214.8) proposes an ultrasonic vibration assisted laser processing apparatus, in which vibration is generated by an ultrasonic generator and transmitted to a workpiece to be processed through medium water, although processing defects can be reduced to some extent, since vibration is transmitted through a medium, the amplitude of vibration and the frequency of vibration cannot be precisely controlled, and thus the stability of processing quality cannot be ensured.

Patent (201811504646.8) proposes a radial ultrasonic vibration lens-assisted laser processing apparatus, which applies a radial vibration to the lens to improve the processing quality by changing the energy distribution at the focal point of the laser, but in this way, the discharge of slag cannot be accelerated, so that processing defects such as a molten layer, oxides, etc. are formed.

In order to solve the problems of recast layer, oxide, heat affected zone, melt splashing, taper and the like during laser processing, a high-efficiency multi-degree-of-freedom ultrasonic vibration auxiliary double-sided laser processing device is needed to be designed, and three-degree-of-freedom ultrasonic vibration auxiliary can be realized to solve the processing defects of recast layer, oxide layer, micro-crack and the like; the taper defect can be solved by adopting double-sided laser processing; the auxiliary blowing is adopted, so that the splashing of the melt in the processing process can be avoided.

Disclosure of Invention

The invention aims to overcome the processing defects of recasting layers, oxides, heat affected zones, melt splashing, conicity and the like in the conventional laser processing, and provides the efficient multi-degree-of-freedom ultrasonic vibration assisted double-sided laser processing device which is reliable in work, high in automation degree, diversified in function, convenient and fast to maintain, high in work efficiency, high in workpiece processing quality and strong in applicability.

The problems to be solved by the invention are realized by the following technical scheme: a high-efficiency multi-degree-of-freedom ultrasonic vibration auxiliary double-sided laser processing device comprises a rack, an automatic feeding and discharging device, a double-sided laser processing device, a three-degree-of-freedom moving device, an ultrasonic vibration auxiliary device, an auxiliary blowing device, a controller and a monitoring device, wherein the rack comprises a first mounting frame, a first mounting plate, a second mounting plate, a third mounting plate, a fourth mounting plate, a fifth mounting plate and a sixth mounting plate, the first mounting frame comprises square steel, first angle steel, second angle steel, third angle steel and support legs, the number of the square steel is four, the square steel is connected together through bolts, the number of the first angle steel is four, the lower end of the first angle steel is installed on the square steel through bolts, the number of the second angle steel is four, the upper end of the second angle steel is installed on the square steel through bolts, the number of the third angle steel is two, the third angle steel is installed between the two first angle, the device comprises four support legs, wherein the support legs are arranged at the lower end of a second angle steel through bolts, a first mounting plate is arranged between two third angle steels through bolts, a second mounting plate is arranged between the two first angle steels through bolts, a third mounting plate is arranged between the two first angle steels through bolts, a fourth mounting plate is arranged between the two square steels through bolts, a fifth mounting plate is arranged between the two first angle steels through bolts, a sixth mounting plate is arranged between the two first angle steels through bolts, an automatic loading and unloading device is arranged on a rack, a double-sided laser processing device is arranged on the rack, a three-degree-of-freedom moving device is arranged on the fourth mounting plate, an ultrasonic vibration auxiliary device is arranged on the three-degree-of-freedom moving device, and an auxiliary air blowing device is arranged on the ultrasonic vibration auxiliary device, the controller pass through the bolt and install on the second mounting panel, monitoring devices install in the frame, monitoring devices includes first high-speed camera, the high-speed camera of second, first high-speed camera install on the fifth mounting panel, the high-speed camera of second install on the sixth mounting panel.

The automatic loading and unloading device comprises a first workpiece conveying mechanism and a second workpiece conveying mechanism, wherein the number of the first workpiece conveying mechanisms is two, the first workpiece conveying mechanism is arranged on a second mounting plate and comprises a first hydraulic cylinder, a seventh mounting plate, a first guide rail, an eighth mounting plate, a second hydraulic cylinder, a second mounting frame and a workpiece overturning mechanism, the first hydraulic cylinder comprises a first hydraulic cylinder body and a first piston rod, the first hydraulic cylinder body is arranged on the second mounting plate through a bolt, the first piston rod is arranged on the first hydraulic cylinder body, the first piston rod and the first hydraulic cylinder body form a moving pair, the seventh mounting plate is arranged at the lower end of the first piston rod through a bolt, the number of the first guide rail is two, the first guide rail is arranged on the seventh mounting plate through a bolt, the eighth mounting plate is arranged on the seventh mounting plate through a bolt, the second hydraulic cylinder comprises a second hydraulic cylinder body and a second piston rod, the second hydraulic cylinder body is arranged on the eighth mounting plate through bolts, the second piston rod is arranged on the second hydraulic cylinder body, the second piston rod and the second hydraulic cylinder body form a moving pair, the second mounting frame is arranged on the first guide rail, the second mounting frame and the first guide rail form a moving pair, the workpiece turnover mechanism comprises a first motor, a first gear transmission mechanism and a workpiece adsorption mechanism, the first motor is arranged on the second mounting frame through bolts, the first gear transmission mechanism comprises a first driving gear, a first driven gear and a rotating shaft, the first driving gear is arranged on an output shaft of the first motor through a key, the first driven gear is arranged on the rotating shaft through a key, and the first driven gear is meshed with the first driving gear, the pivot pass through the bearing and install on the second mounting bracket, work piece adsorption mechanism include first air pump, first hose, pipe, sucking disc, first air pump pass through the bolt and install on the second mounting bracket, the one end of first hose install on first air pump, the other end of first hose is installed on the pipe, the pipe pass through the bolt and install in the pivot, the sucking disc install on the pipe, second work piece conveying mechanism include second motor, second gear drive, take conveying mechanism, baffle, work piece arrangement box, work piece, the second motor pass through the bolt and install on the third mounting panel, second gear drive include second driving gear, second driven gear, the second driving gear pass through the key and install on the output shaft of second motor, take conveying mechanism include driving roll, a driving roll, Driven cylinder, conveyer belt, first support, second support, the initiative cylinder pass through the bearing and install between two first supports, driven cylinder pass through the bearing and install between two second supports, the conveyer belt install on initiative cylinder and driven cylinder, first support have two, first support passes through the bolt and installs on the third mounting panel, the second support have two, the second support passes through the bolt and installs on the third mounting panel, second driven gear pass through the key and install on the initiative cylinder, second driven gear meshes with the second driving gear mutually, the baffle have two, the baffle passes through the bolt and installs on the third mounting panel, the work piece settle the box and have four, the work piece is settled the box and is placed on the conveyer belt, the work piece place in the work piece and settle the box.

The double-sided laser processing device comprises a laser, a beam splitter, a first laser processing mechanism and a second laser processing mechanism, wherein the laser is installed on a first installation plate through bolts, the beam splitter is installed on the first installation plate through bolts, the first laser processing mechanism comprises a first reflector, a first optical shutter, a second reflector, a third reflector and a first objective focusing mechanism, the first reflector is installed on the first installation plate through bolts, the first optical shutter is installed on the first installation plate through bolts, the second reflector is installed on the first installation plate through bolts, the third reflector is installed on a sixth installation plate through bolts, the first objective focusing mechanism comprises a first motor installation seat, a third motor, a first screw rod, a first screw nut, a first focusing objective and a first T-shaped frame, the first motor mounting seat is mounted on the sixth mounting plate through bolts, the third motor is mounted on the first motor mounting seat through bolts, the first screw rod is mounted on an output shaft of the third motor, the first screw nut is mounted on the first screw rod, the first screw nut and the first screw rod form a screw pair, the first focusing objective lens is mounted on the first screw nut through bolts, the first focusing objective lens and the first T-shaped frame form a moving pair, the first T-shaped frame is mounted on the sixth mounting plate through bolts, the second optical gate laser processing mechanism comprises a second optical gate, a fourth optical gate, a fifth optical gate, a sixth optical gate and a second optical gate focusing mechanism, the second optical gate is mounted on the first mounting plate through bolts, the fourth optical gate is mounted on the first mounting plate through bolts, and the fifth optical gate is mounted on the first mounting plate through bolts, the sixth speculum pass through the bolt and install on the fifth mounting panel, second objective focusing mechanism include second motor mount pad, fourth motor, second lead screw, second focusing objective, second T type frame, the second motor mount pad pass through the bolt and install on the fifth mounting panel, the fourth motor pass through the bolt and install on the second motor mount pad, the second lead screw install on the output shaft of fourth motor, the second screw install on the second lead screw, the second screw forms the screw pair with the second lead screw, second focusing objective pass through the bolt and install on the second screw, second focusing objective forms the removal pair with second T type frame, second T type frame pass through the bolt and install on the fifth mounting panel.

The three-degree-of-freedom moving device comprises a first moving mechanism, a second moving mechanism and a third moving mechanism, wherein the first moving mechanism comprises a fifth motor, a third screw rod, a second guide rail, a third support, a fourth support, a first moving platform and a third screw nut, the fifth motor is arranged on a fourth mounting plate through bolts, the third screw rod is arranged on an output shaft of the fifth motor, the number of the second guide rails is two, the second guide rail is arranged on the fourth mounting plate through bolts, the third support is arranged on the fourth mounting plate through bolts, the fourth support is arranged on the fourth mounting plate through bolts, the first moving platform is arranged on the second guide rail, the first moving platform and the second guide rail form a moving pair, the third screw nut is arranged at the bottom of the first moving platform through bolts, and the third screw nut and the third screw rod form a screw pair, the second moving mechanism comprises a ninth mounting plate, a sixth motor, a fourth screw rod, a third guide rail, a fifth support, a sixth support, a second moving platform and a fourth screw nut, the ninth mounting plate is mounted on the first moving platform through bolts, the sixth motor is mounted on the ninth mounting plate through bolts, one end of the fourth screw rod is mounted on an output shaft of the sixth motor, the other end of the fourth screw rod is mounted on the fifth support through a bearing, the number of the third guide rails is two, the third guide rail is mounted on the ninth mounting plate through bolts, the fifth support is mounted on the ninth mounting plate through bolts, the sixth support is mounted on the ninth mounting plate through bolts, the second moving platform is mounted on the third guide rail, a moving pair is formed by the second moving platform and the third guide rail, and the fourth screw nut is mounted at the bottom of the second moving platform through bolts, the fourth screw and the fourth screw form a screw pair, the third moving mechanism comprises a tenth mounting plate, a seventh motor, a fifth screw, a fourth guide rail, a seventh support, an eighth support, a third moving platform and a fifth screw, the tenth mounting plate is fixedly connected with the second moving platform, the seventh motor is mounted on the seventh support, one end of the fifth screw is mounted on an output shaft of the seventh motor, the other end of the fifth screw is mounted on the eighth support through a bearing, the number of the fourth guide rail is two, the fourth guide rail is mounted on the tenth mounting plate through a bolt, the seventh support is fixedly connected with the tenth mounting plate, the eighth support is fixedly connected with the second moving platform, the third moving platform is mounted on the fourth guide rail, the third moving platform and the fourth guide rail form a moving pair, the fifth screw is mounted at the bottom of the third moving platform through a bolt, the fifth screw nut and the fifth screw rod form a moving pair.

The ultrasonic vibration auxiliary device comprises an ultrasonic generator, a first ultrasonic vibration mechanism, a second ultrasonic vibration mechanism, a third ultrasonic vibration mechanism, a thirteenth mounting plate, a sixth guide rail, a third mounting frame, a fourth mounting frame and a workpiece clamping mechanism, wherein the ultrasonic generator is mounted on the second mounting plate through bolts, the first ultrasonic vibration mechanism comprises a first ultrasonic transducer, a first ultrasonic amplitude transformer, a ninth support, a fourth moving platform, a fifth guide rail and a tenth support, the first ultrasonic transducer is mounted on the ninth support, one end of the first ultrasonic amplitude transformer is mounted on the first ultrasonic transducer, the other end of the first ultrasonic amplitude transformer is mounted on the tenth support through bolts, the ninth support is mounted on the thirteenth mounting plate through bolts, and the number of the fifth guide rails is two, the fifth guide rail is arranged on a thirteenth mounting plate through a bolt, the fourth moving platform is arranged on the fifth guide rail, the fourth moving platform and the fifth guide rail form a moving pair, the tenth support is arranged on the fourth moving platform through a bolt, the second ultrasonic vibration mechanism comprises a second ultrasonic transducer, a second ultrasonic amplitude transformer, an eleventh mounting plate and a twelfth mounting plate, the second ultrasonic transducer is arranged on the eleventh mounting plate, one end of the second ultrasonic amplitude transformer is arranged on the second ultrasonic transducer, the other end of the second ultrasonic amplitude transformer is arranged on the twelfth mounting plate through a bolt, the third ultrasonic vibration mechanism comprises a third ultrasonic transducer, a third ultrasonic amplitude transformer, a fifth moving platform, an eleventh support and a twelfth support, the third ultrasonic transducer is arranged on the twelfth support, one end of the third ultrasonic amplitude transformer is arranged on the third ultrasonic transducer, the other end of the third ultrasonic amplitude transformer is arranged on an eleventh support, the fifth moving platform is arranged on a sixth guide rail, the fifth moving platform and the sixth guide rail form a moving pair, the eleventh support is arranged on the fifth moving platform through bolts, the twelfth support is arranged on the fourth moving platform through bolts, the thirteenth mounting plate is fixedly connected on the third moving platform, the number of the sixth guide rail is two, the sixth guide rail is arranged on the fourth moving platform through bolts, the third mounting frame comprises four first supports, fourth angle steel, fifth angle steel, a third motor mounting seat and a thirteenth support, the number of the first supports is four, the lower end of the first support is arranged on the fifth moving platform through bolts, and the number of the fourth angle steel is two, the fourth angle steel is installed between the two first supports through bolts, the fifth angle steel is two, the fifth angle steel is installed between the two first supports through bolts, the third motor installation seat is installed between the two first supports through bolts, the thirteenth support is installed between the two first supports through bolts, the fourth installation frame comprises a bottom frame, a seventh guide rail, sixth angle steel, seventh angle steel, eighth angle steel, a first sliding block and a second sliding block, the bottom frame is installed on the seventh guide rail, the bottom frame and the seventh guide rail form a moving pair, the number of the seventh guide rail is four, one end of the seventh guide rail is installed on the fifth angle steel through bolts, the other end of the seventh guide rail is installed on the fifth moving platform through bolts, the number of the sixth angle steel is four, the sixth angle steel is installed on the bottom frame through bolts, the seventh angle steel is installed between the two first sliding blocks through bolts, the eighth angle steel is installed between the two second sliding blocks through bolts, the number of the first sliding blocks is two, the first sliding blocks are installed on the seventh guide rail, the first sliding blocks and the seventh guide rail form a moving pair, the number of the second sliding blocks is two, the second sliding blocks are installed on the seventh guide rail, the second sliding blocks and the seventh guide rail form a moving pair, the workpiece clamping mechanism comprises a round rod, an eighth motor, a sixth screw rod, a clamping mechanism, a second support, a sixth screw nut, a fourth sliding block, a fifth sliding block and an eighth guide rail, the number of the round rod is four, one end of the round rod is fixedly connected to the second support, the other end of the round rod is fixedly connected to the fifth sliding block, the eighth motor is installed on a third motor installation seat through bolts, the sixth screw rod is installed on an output shaft of the eighth motor, the number of the clamping mechanism is eight, and the clamping mechanism comprises a third sliding block, A first clamping strip, a second clamping strip and a knob, wherein the third slide block is arranged on the round rod and forms a sliding pair with the round rod, the first clamping strip is arranged on the third sliding block through a bolt, the second clamping strip is arranged on the third sliding block through a bolt, the knob is arranged on the third sliding block, the number of the second brackets is four, the second brackets are fixedly connected on the sixth screw, the number of the sixth screw nuts is two, the sixth screw nuts are arranged on the sixth screw rod, the sixth screw nuts and the sixth screw rod form a screw pair, the number of the fourth sliding blocks is four, the fourth sliding blocks are fixedly connected on the second bracket, the fourth sliding blocks and the eighth guide rail form a moving pair, the number of the fifth sliding blocks is four, the fifth sliding blocks are arranged on the eighth guide rail, the fifth sliding blocks and the eighth guide rail form a moving pair, the number of the eighth guide rail is four, and the eighth guide rail is fixedly connected between the two sixth angle steels;

the auxiliary air blowing device comprises a second air pump, a second hose, a three-way valve, a first coaxial air blowing mechanism, a first side shaft air blowing mechanism, a second coaxial air blowing mechanism, a second side shaft air blowing mechanism, a seventh hose and a four-way valve, wherein the second air pump is arranged on a thirteenth mounting plate through bolts, one end of the second hose is connected to the second air pump, the other end of the second hose is connected to the four-way valve, the first coaxial air blowing mechanism comprises a third hose, a first base, a first telescopic rod, a second base, a second telescopic rod and a first air nozzle, one end of the third hose is connected to the four-way valve, the other end of the third hose is connected to the first base, the first base is arranged on the thirteenth mounting plate through bolts, the first telescopic rod is arranged on the first base, and the first telescopic rod and the first base form a moving pair, the second base is arranged on the first telescopic rod through a bolt, the second telescopic rod is arranged on the second base, the second telescopic rod and the second base form a moving pair, the first air nozzle is arranged on the second telescopic rod, the first air nozzle and the second telescopic rod form a ball pair, the first side shaft air blowing mechanism comprises a fourth hose, a third base, a third telescopic rod, a fourth base, a fourth telescopic rod and a second air nozzle, one end of the fourth hose is connected to the four-way valve, the other end of the fourth hose is connected to the third base, the third base is arranged on a thirteenth mounting plate through a bolt, the third telescopic rod is arranged on the third base, the third telescopic rod and the third base form a moving pair, the fourth base is arranged on the third telescopic rod through a bolt, and the fourth telescopic rod is arranged on the fourth base, the fourth telescopic rod and the fourth base form a sliding pair, the second air nozzle is arranged on the fourth telescopic rod, the second air nozzle and the fourth telescopic rod form a ball pair, the second coaxial blowing mechanism comprises a fifth hose, a fifth base, a fifth telescopic rod, a sixth base, a sixth telescopic rod and a third air nozzle, one end of the fifth hose is connected with the three-way valve, the other end of the fifth hose is connected with the fifth base, the fifth base is arranged on the thirteenth mounting plate through a bolt, the fifth telescopic rod is arranged on the fifth base, the fifth telescopic rod and the fifth base form a sliding pair, the sixth base is arranged on the fifth telescopic rod through a bolt, the sixth telescopic rod is arranged on the sixth base, the sixth telescopic rod and the sixth base form a sliding pair, the third air nozzle is arranged on the sixth telescopic rod, and the third air nozzle and the sixth telescopic rod form a ball pair, the second paraxial air blowing mechanism comprises a sixth hose, a seventh base, a seventh telescopic rod, an eighth base, an eighth telescopic rod and a fourth air nozzle, one end of the sixth hose is connected with the three-way valve, the other end of the sixth hose is connected with the seventh base, the seventh base is arranged on the thirteenth mounting plate through a bolt, the seventh telescopic rod is arranged on the seventh base, the seventh telescopic rod and the seventh base form a moving pair, the eighth base is arranged on the seventh telescopic rod through a bolt, the eighth telescopic rod is arranged on the eighth base, the eighth telescopic rod and the eighth base form a moving pair, the fourth air nozzle is arranged on the eighth telescopic rod, the fourth air nozzle and the eighth telescopic rod form a ball pair, one end of the seventh hose is connected to the four-way valve, the other end of the seventh hose is connected to the three-way valve, and the four-way valve is mounted on the thirteenth mounting plate through a bolt.

Before machining, the support legs are rotated to adjust the device to be horizontal, and the knob is rotated according to the size of a workpiece, so that the clamping mechanism moves to a proper position along the round rod, and workpieces with different sizes can be clamped; the controller is started, the controller controls the third motor, the fourth motor is started, the third motor is started, the first lead screw installed on the output shaft of the third motor is driven to rotate, the first focusing objective lens is driven to move to a proper focusing position through the first screw, the fourth motor is started, the second lead screw installed on the output shaft of the fourth motor is driven to rotate, the second focusing objective lens is driven to move to a proper focusing position through the second screw, the controller controls the third motor and the fourth motor to be closed, the laser focusing process is achieved through the steps, the laser spot size can be accurately controlled, the diameter of a machining hole is controlled, and the laser machining efficiency is improved.

When processing, the controller controls the second motor to start, drives the second driving gear installed on the output shaft of the second motor to rotate, and then drives the second driven gear to rotate, so that the driving roller and the driven roller drive the conveying belt to rotate, the workpiece placing box is moved to a specified position, the controller controls the second motor to be closed, automatic conveying of the workpiece placing box can be achieved through the steps, and the workpiece is taken to an adsorption position.

The controller controls the fifth motor, the sixth motor and the seventh motor to be started simultaneously, the fifth motor is started to drive a third screw rod installed on an output shaft of the fifth motor to rotate, and further drives the first movable platform to move to a specified position along the second guide rail through a third screw nut, the sixth motor is started to drive a fourth screw rod installed on an output shaft of the sixth motor to rotate, and further drives the second movable platform to move to the specified position along the third guide rail through the fourth screw nut, the seventh motor is started to drive a fifth screw rod installed on an output shaft of the seventh motor to rotate, and further drives the third movable platform to move to the specified position along the fourth guide rail through the fifth screw nut, the controller controls the fifth motor, the sixth motor and the seventh motor to be closed, and the workpiece clamping mechanism is moved to a clamping position through the steps.

The controller controls the first hydraulic cylinder to start to drive a seventh mounting plate arranged on the first hydraulic cylinder to move to a specified position, and the controller controls the first hydraulic cylinder to close; the controller controls the first air pump to start, the first air pump transmits the adsorption force to the sucker through the first hose and the circular tube, and the sucker adsorbs a workpiece; the controller controls the first motor to start, drives a first driving gear arranged on an output shaft of the first motor to rotate so as to drive a first driven gear to rotate, thereby driving the workpiece to rotate to a vertical angle through a rotating shaft and a circular tube, and controls the first motor to be turned off; the controller controls the first hydraulic cylinder and the second hydraulic cylinder to be started simultaneously, the first hydraulic cylinder is started to drive a seventh mounting plate arranged on the first hydraulic cylinder to move to a specified position, the second hydraulic cylinder is started to drive a second mounting frame arranged on the second hydraulic cylinder to move to the specified position along the first guide rail, and the controller controls the first hydraulic cylinder and the second hydraulic cylinder to be closed; the controller controls the eighth motor to start to drive a sixth screw rod arranged on an output shaft of the eighth motor to rotate, so that the clamping mechanism is driven to move towards the middle through a sixth screw nut, a second support, a fourth sliding block and a round rod to clamp a workpiece, and after clamping is completed, the controller controls the first air pump to be closed and controls the first workpiece conveying mechanism to reset; through installing two first work piece conveying mechanism, can realize the unloading of alternation, greatly accelerated the machining efficiency of work piece.

The controller controls the fifth motor, the sixth motor and the seventh motor to be started simultaneously, the fifth motor is started to drive a third screw rod installed on an output shaft of the fifth motor to rotate, and further drives the first movable platform to move to a specified position along the second guide rail through a third screw nut, the sixth motor is started to drive a fourth screw rod installed on an output shaft of the sixth motor to rotate, and further drives the second movable platform to move to the specified position along the third guide rail through the fourth screw nut, the seventh motor is started to drive a fifth screw rod installed on an output shaft of the seventh motor to rotate, and further drives the third movable platform to move to the specified position along the fourth guide rail through the fifth screw nut, the controller controls the fifth motor, the sixth motor and the seventh motor to be closed, and the workpiece is moved to a laser processing position through the steps.

The controller controls the ultrasonic generator to start, the ultrasonic generator outputs a given amplitude and frequency according to the processing requirement, and the workpiece clamping mechanism generates vibration along the X-axis direction through the first ultrasonic transducer, the first ultrasonic amplitude transformer and the fourth moving platform; the workpiece clamping mechanism generates vibration along the Z-axis direction through a second ultrasonic transducer and a second ultrasonic amplitude transformer; through the third ultrasonic transducer, the third ultrasonic amplitude transformer and the fifth moving platform, the workpiece generates vibration along the Y-axis direction, three-degree-of-freedom ultrasonic high-frequency vibration of the workpiece is finally realized through the steps, the phenomenon that melts are attached to the side wall of the hole can be greatly reduced, slag generated by machining is easier to discharge, and the number of degrees of freedom of vibration can be adjusted according to different machining requirements.

The controller controls the second air pump to start, the generated air reaches the four-way valve through the second hose and is divided into three parts, the first part of air passes through the third hose, the first base, the first telescopic rod, the second base and the second telescopic rod and is blown out from the first air nozzle, the second part of air passes through the fourth hose, the third base, the third telescopic rod, the fourth base and the fourth telescopic rod and is blown out from the second air nozzle, the third part of air is transmitted to the three-way valve through the seventh hose, the air transmitted to the three-way valve is divided into two parts, one part of air is blown out from the third air nozzle through the fifth hose, the fifth base, the fifth telescopic rod, the sixth base and the sixth telescopic rod, and the other part of air is blown out from the fourth air nozzle through the sixth hose, the seventh base, the seventh telescopic rod, the eighth base and the eighth telescopic rod, and double-sided coaxial and paraxial blowing of the workpiece during laser processing is realized through the steps, the slag in processing can be removed to the maximum extent, and the laser processing quality is improved.

The controller controls the laser to start, the laser emits a laser beam, and the laser beam is divided into two laser beams after passing through the beam splitter; a beam of laser irradiates one surface of a workpiece through a first reflector, a first optical gate, a second reflector, a third reflector and a first focusing object mirror, and the workpiece is processed; another laser beam irradiates the other side of the workpiece through a second optical gate, a fourth reflector, a fifth reflector, a sixth reflector and a second focusing objective lens to process the workpiece, double-sided laser processing is realized through the steps, and a single-sided laser beam can be adopted for processing according to different processing requirements; the first and second shutters are arranged to control the frequency of laser pulses and the switching between the double-sided laser and the single-sided laser.

After the machining is finished, the controller controls the fifth motor, the sixth motor and the seventh motor to be started, the fifth motor is started to drive a third screw rod arranged on an output shaft of the fifth motor to rotate, the first movable platform is driven to move to a specified position along the second guide rail through a third screw nut, the sixth motor is started to drive a fourth screw rod arranged on an output shaft of the sixth motor to rotate, the second movable platform is driven to move to the specified position along the third guide rail through the fourth screw nut, the seventh motor is started to drive a fifth screw rod arranged on an output shaft of the seventh motor to rotate, the third movable platform is driven to move to the specified position along the fourth guide rail through the fifth screw nut, the controller controls the fifth motor, the sixth motor and the seventh motor to be closed, and the machined workpiece is moved to an adsorption position through the steps.

At the moment, the controller controls the first hydraulic cylinder to start to drive the seventh mounting plate mounted on the first hydraulic cylinder to move to a specified position, and the controller controls the first hydraulic cylinder to close; the controller controls the first air pump to start, the first air pump transmits the adsorption force to the sucker through the first hose and the circular tube, and the sucker adsorbs a workpiece; the controller controls the eighth motor to start, drives a sixth screw rod arranged on an output shaft of the eighth motor to rotate, further drives the clamping mechanism to move towards two sides through a sixth screw nut, a second bracket, a fourth sliding block and a round rod, and releases the workpiece; the controller controls the first motor to start, drives a first driving gear arranged on an output shaft of the first motor to rotate so as to drive a first driven gear to rotate, so that the workpiece is driven to rotate to a horizontal angle through a rotating shaft and a circular tube, and the controller controls the first motor to be turned off; the controller controls the first hydraulic cylinder and the second hydraulic cylinder to start, drives the seventh mounting plate arranged on the first hydraulic cylinder to move, drives the second mounting plate arranged on the second hydraulic cylinder to move to the workpiece boxing position along the first guide rail, and controls the first hydraulic cylinder and the second hydraulic cylinder to close; the controller controls the first air pump to be closed, and the workpiece is placed on the workpiece placing box; the laser processing operation of the workpiece is realized through the steps, and the controller controls the mechanisms to reset.

In the actual processing process, the device can adjust the processing in real time according to the data collected by the first high-speed camera and the second high-speed camera, such as the amplitude of workpiece vibration, the respective processing time of two-side laser and the like.

The invention has the beneficial effects that: the invention can overcome the technical defects of the existing laser processing device, has the functions of three-degree-of-freedom vibration of a workpiece, automatic clamping of the workpiece, single-side processing of the workpiece, double-side processing of the workpiece and the like, and also has the advantages of reliable work, high automation degree, diversified functions, convenience and rapidness in maintenance, high working efficiency, high workpiece processing quality, strong applicability and the like.

Drawings

FIG. 1 is a schematic diagram of the general structure of the present invention;

FIG. 2 is a schematic view of a first workpiece transport mechanism of the present invention;

FIG. 3 is a schematic structural diagram of a three-degree-of-freedom mobile device according to the present invention;

FIG. 4 is a schematic view of the ultrasonic vibration assisting device and the auxiliary blowing device according to the present invention;

FIG. 5 is a schematic structural view of a workpiece clamping mechanism of the present invention.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific embodiments and the drawings.

As shown in fig. 1, 2, 3, 4, and 5, a high-efficiency multi-degree-of-freedom ultrasonic vibration-assisted double-sided laser processing device includes a frame 1, an automatic loading and unloading device 2, a double-sided laser processing device 3, a three-degree-of-freedom moving device 4, an ultrasonic vibration-assisted device 5, an auxiliary blowing device 6, a controller 7, and a monitoring device 8, wherein the frame 1 includes a first mounting frame 11, a first mounting plate 12, a second mounting plate 13, a third mounting plate 14, a fourth mounting plate 15, a fifth mounting plate 16, and a sixth mounting plate 17, the first mounting frame 11 includes four square steels 111, first angle steels 112, second angle steels 113, third angle steels 114, and support legs 115, the number of the square steels 111 is four, the square steels 111 are connected together by bolts, the number of the first angle steels 112 is four, the lower ends of the first angle steels 112 are mounted on the square steels 111 by bolts, the second angle steels 113 are four, the upper end of second angle steel 113 is passed through the bolt and is installed on square steel 111, third angle steel 114 have two, third angle steel 114 passes through the bolt and installs between two first angle steels 112, stabilizer blade 115 have four, stabilizer blade 115 passes through the bolt and installs the lower extreme at second angle steel 113, first mounting panel 12 pass through the bolt and install between two third angle steels 114, second mounting panel 13 pass through the bolt and install between two first angle steels 112, third mounting panel 14 pass through the bolt and install between two first angle steels 112, fourth mounting panel 15 pass through the bolt and install between two square steels 111, fifth mounting panel 16 pass through the bolt and install between two first angle steels 112, sixth mounting panel 17 pass through the bolt and install between two first angle steels 112, automatic unloading device 2 install on frame 1, two-sided laser beam machining device 3 install in frame 1, three degree of freedom mobile device 4 install on fourth mounting panel 15, ultrasonic vibration auxiliary device 5 install on three degree of freedom mobile device 4, supplementary gas blowing device 6 install on ultrasonic vibration auxiliary device 5, controller 7 pass through the bolt and install on second mounting panel 13, monitoring devices 8 install in frame 1, monitoring devices 8 include first high-speed camera 81, the high-speed camera 82 of second, first high-speed camera 81 install on fifth mounting panel 16, the high-speed camera 82 of second install on sixth mounting panel 17.

As shown in fig. 1 and 2, the automatic loading and unloading device 2 includes two first workpiece conveying mechanisms 21 and two second workpiece conveying mechanisms 22, the first workpiece conveying mechanism 21 is mounted on the second mounting plate 13, the first workpiece conveying mechanism 21 includes a first hydraulic cylinder 211, a seventh mounting plate 212, a first guide rail 213, an eighth mounting plate 214, a second hydraulic cylinder 215, a second mounting frame 216, and a workpiece overturning mechanism 217, the first hydraulic cylinder 211 includes a first hydraulic cylinder 2111 and a first piston 2112, the first hydraulic cylinder 2111 is mounted on the second mounting plate 13 by bolts, the first piston 2112 is mounted on the first hydraulic cylinder 2111, the first piston 2112 and the first hydraulic cylinder 2111 form a moving pair, the seventh mounting plate 212 is mounted at the lower end of the first piston 2112 by bolts, the first guide rail 213 is two, the first guide 213 is mounted on the seventh mounting plate 212 by bolts, the eighth mounting plate 214 is mounted on the seventh mounting plate 212 by bolts, the second hydraulic cylinder 215 includes a second hydraulic cylinder 2151 and a second piston rod 2152, the second hydraulic cylinder 2151 is mounted on the eighth mounting plate 214 by bolts, the second piston rod 2152 is mounted on the second hydraulic cylinder 2151, the second piston rod 2152 and the second hydraulic cylinder 2151 form a moving pair, the second mounting frame 216 is mounted on the first guide 213, the second mounting frame 216 and the first guide 213 form a moving pair, the workpiece turnover mechanism 217217 includes a first motor 2171, a first gear transmission 2172 and a workpiece adsorption mechanism 2173, the first motor 2171 is mounted on the second mounting frame 216 by bolts, the first gear transmission 2172 includes a first driving gear 21721, a first driven gear 21722, a second driven gear 2172, A rotating shaft 21723, said first driving gear 21721 is keyed to an output shaft of the first motor 2171, said first driven gear 21722 is keyed to a rotating shaft 21723, said first driven gear 21722 is engaged with said first driving gear 21721, said rotating shaft 21723 is mounted to the second mounting frame 216 by bearings, said work piece sucking mechanism 2173 comprises a first air pump 21731, a first flexible tube 21732, a circular tube 21733, and a suction cup 21734, said first air pump 21731 is mounted to the second mounting frame 216 by bolts, one end of said first flexible tube 21732 is mounted to the first air pump 21731, the other end of the first flexible tube 21732 is mounted to the circular tube 21733, said circular tube 21733 is mounted to the rotating shaft 21723 by bolts, said suction cup 21734 is mounted to the circular tube 21733, said second work piece transporting mechanism 22 comprises a second motor 221, a second gear transmission mechanism 222, a belt transporting mechanism 223, a baffle 224, a second motor 21731, a second gear transmission mechanism 222, a belt transporting mechanism, A workpiece mounting box 225 and a workpiece 226, wherein the second motor 221 is mounted on the third mounting plate 14 by bolts, the second gear transmission mechanism 222 includes a second driving gear 2221 and a second driven gear 2222, the second driving gear 2221 is mounted on an output shaft of the second motor 221 by a key, the belt conveying mechanism 223 includes a driving roller 2231, a driven roller 2232, a conveyor belt 2233, a first support 2234 and a second support 2235, the driving roller 2231 is mounted between two first supports 2234 by a bearing, the driven roller 2232 is mounted between two second supports 2235 by a bearing, the conveyor belt 2233 is mounted on the driving roller 2231 and the driven roller 2232, there are two first supports 2234, the first support 2234 is mounted on the third mounting plate 14 by bolts, there are two second supports 2235, and the second support 2235 is mounted on the third mounting plate 14 by bolts, the second driven gear 2222 is mounted on the driving roller 2231 by a key, the second driven gear 2222 is engaged with the second driving gear 2221, two baffles 224 are provided, the baffles 224 are mounted on the third mounting plate 14 by bolts, four workpiece setting boxes 225 are provided, the workpiece setting boxes 225 are placed on the conveyor 2233, and the workpieces 226 are placed in the workpiece setting boxes 225.

As shown in fig. 1, the double-sided laser processing apparatus 3 includes a laser 31, a beam splitter 32, a first laser processing mechanism 33, and a second laser processing mechanism 34, the laser 31 is mounted on a first mounting plate 12 by bolts, the beam splitter 32 is mounted on the first mounting plate 12 by bolts, the first laser processing mechanism 33 includes a first mirror 331, a first shutter 332, a second mirror 333, a third mirror 334, and a first objective focusing mechanism 335, the first mirror 331 is mounted on the first mounting plate 12 by bolts, the first mirror 332 is mounted on the first mounting plate 12 by bolts, the second mirror 333 is mounted on the first mounting plate 12 by bolts, the third mirror 334 is mounted on a sixth mounting plate 17 by bolts, and the first objective focusing mechanism 335 includes a first motor mounting seat 3351, a second motor mounting seat 3351, and a third motor mounting seat 3351, A third motor 3352, a first lead screw 3353, a first screw 3354, a first focusing objective 3355, a first T-shaped frame 3356, wherein the first motor mounting block 3351 is mounted on the sixth mounting plate 17 by bolts, the third motor 3352 is mounted on the first motor mounting block 3351 by bolts, the first lead screw 3353 is mounted on the output shaft of the third motor 3352, the first screw 3354 is mounted on the first lead screw 3353, the first screw 3354 and the first lead screw 3353 form a screw pair, the first focusing objective 3355 is mounted on the first screw 3354 by bolts, the first focusing objective 3355 and the first T-shaped frame 3356 form a moving pair, the first T-shaped frame 3356 is mounted on the sixth mounting plate 17 by bolts, the second focusing laser processing mechanism 34 comprises a second shutter 341, a fourth mirror 342, a fifth mirror 343, a sixth mirror 344, and a second mirror 345, the second optical shutter 341 is mounted on the first mounting plate 12 by bolts, the fourth reflecting mirror 342 is mounted on the first mounting plate 12 by bolts, the fifth reflecting mirror 343 is mounted on the first mounting plate 12 by bolts, the sixth reflecting mirror 344 is mounted on the fifth mounting plate 16 by bolts, the second objective focusing mechanism 345 includes a second motor mount 3451, a fourth motor 3452, a second lead screw 3453, a second nut 3454, a second focusing objective 3455, and a second T-shaped frame 3456, the second motor mount 3451 is mounted on the fifth mounting plate 16 by bolts, the fourth motor 3452 is mounted on the second motor mount 3451 by bolts, the second lead screw 3453 is mounted on an output shaft of the fourth motor 3452, the second nut 3454 is mounted on the second lead screw 3453, the second nut 3454 and the second lead screw 3453 form a screw pair, the second focusing objective 3455 is mounted on the second nut 3454 by bolts, the second focusing objective 3455 and the second T-shaped mount 3456 form a moving pair, and the second T-shaped mount 3456 is mounted on the fifth mounting plate 16 by bolts.

As shown in fig. 1 and 3, the three-degree-of-freedom moving device 4 includes a first moving mechanism 41, a second moving mechanism 42, and a third moving mechanism 43, where the first moving mechanism 41 includes a fifth motor 411, a third lead screw 412, a second guide rail 413, a third support 414, a fourth support 415, two first moving platforms 416, and a third screw 417, the fifth motor 411 is mounted on the fourth mounting plate 15 by bolts, the third lead screw 412 is mounted on an output shaft of the fifth motor 411, the second guide rail 413 is mounted on the fourth mounting plate 15 by bolts, the third support 414 is mounted on the fourth mounting plate 15 by bolts, the fourth support 415 is mounted on the fourth mounting plate 15 by bolts, the first moving platform 416 is mounted on the second guide rail 413, and the first moving platform 416 and the second guide rail 413 form a moving pair, the third screw 417 is mounted at the bottom of the first moving platform 416 by bolts, the third screw 417 and the third screw 412 form a screw pair, the second moving mechanism 42 includes a ninth mounting plate 421, a sixth motor 422, a fourth screw 423, a third guide rail 424, a fifth support 425, a sixth support 426, a second moving platform 427 and a fourth screw 428, the ninth mounting plate 421 is mounted on the first moving platform 416 by bolts, the sixth motor 422 is mounted on the ninth mounting plate 421 by bolts, one end of the fourth screw 423 is mounted on an output shaft of the sixth motor 422, the other end of the fourth screw 423 is mounted on the fifth support 425 by bearings, the third guide rail 424 is provided in two, the third guide rail 424 is mounted on the ninth mounting plate 421 by bolts, the fifth support 425 is mounted on the ninth mounting plate 421 by bolts, the sixth support 426 is mounted on the ninth mounting plate 421 by bolts, the second moving platform 427 is mounted on the third guide rail 424, the second moving platform 427 and the third guide rail 424 form a moving pair, the fourth screw 428 is mounted on the bottom of the second moving platform 427 by bolts, the fourth screw 428 and the fourth screw 423 form a screw pair, the third moving mechanism 43 comprises a tenth mounting plate 431, a seventh motor 432, a fifth screw 433, a fourth guide rail 434, a seventh support 435, an eighth support 436, a third moving platform 437 and a fifth screw 438, the tenth mounting plate 431 is fixedly connected to the second moving platform 427, the seventh motor 432 is mounted on the seventh support 435, one end of the fifth screw 433 is mounted on an output shaft of the seventh motor 432, the other end of the fifth screw 433 is mounted on the eighth support 436 by bearings, the fourth guide rails 434 are two, the fourth guide rail 434 is mounted on the tenth mounting plate 431 by bolts, the seventh support 435 is fixedly connected to the tenth mounting plate 431, the eighth support 436 is fixedly connected to the second moving platform 427, the third moving platform 437 is mounted on the fourth guide rail 434, the third moving platform 437 and the fourth guide rail 434 form a moving pair, the fifth screw 438 is mounted at the bottom of the third moving platform 437 by bolts, and the fifth screw 438 and the fifth screw 433 form a moving pair.

As shown in fig. 1, 3, 4 and 5, the ultrasonic vibration assisting apparatus 5 includes an ultrasonic generator 51, a first ultrasonic vibration mechanism 52, a second ultrasonic vibration mechanism 53, a third ultrasonic vibration mechanism 54, a thirteenth mounting plate 55, a sixth guide rail 56, a third mounting frame 57, a fourth mounting frame 58 and a workpiece clamping mechanism 59, the ultrasonic generator 51 is mounted on the second mounting plate 13 by bolts, the first ultrasonic vibration mechanism 52 includes a first ultrasonic transducer 521, a first ultrasonic horn 522, a ninth mounting frame 523, a fourth moving platform 524, a fifth guide rail 525 and a tenth mounting frame 526, the first ultrasonic transducer 521 is mounted on the ninth mounting frame 523, one end of the first ultrasonic horn 522 is mounted on the first ultrasonic transducer 521, the other end of the first ultrasonic horn 522 is mounted on the tenth mounting frame 526 by bolts, the ninth support 523 is mounted on the thirteenth mounting plate 55 by bolts, there are two fifth guide rails 525, the fifth guide rail 525 is mounted on the thirteenth mounting plate 55 by bolts, the fourth moving platform 524 is mounted on the fifth guide rail 525, the fourth moving platform 524 and the fifth guide rail 525 form a moving pair, the tenth support 526 is mounted on the fourth moving platform 524 by bolts, the second ultrasonic vibration mechanism 53 includes a second ultrasonic transducer 531, a second ultrasonic horn 532, an eleventh mounting plate 533 and a twelfth mounting plate 534, the second ultrasonic transducer 531 is mounted on the eleventh mounting plate 533, one end of the second ultrasonic horn 532 is mounted on the second ultrasonic transducer 531, the other end of the second ultrasonic horn 532 is mounted on the twelfth mounting plate 534 by bolts, and the third ultrasonic vibration mechanism 54 includes a third ultrasonic transducer 541, a fourth ultrasonic horn 541, a fifth ultrasonic horn and a sixth ultrasonic horn 54, A third ultrasonic horn 542, a fifth moving platform 543, an eleventh supporting seat 544 and a twelfth supporting seat 545, wherein the third ultrasonic transducer 541 is mounted on the twelfth supporting seat 545, one end of the third ultrasonic horn 542 is mounted on the third ultrasonic transducer 541, the other end of the third ultrasonic horn 542 is mounted on the eleventh supporting seat 544, the fifth moving platform 543 is mounted on the sixth guide rail 56, the fifth moving platform 543 and the sixth guide rail 56 form a moving pair, the eleventh supporting seat 544 is mounted on the fifth moving platform 543 by bolts, the twelfth supporting seat 545 is mounted on the fourth moving platform 524 by bolts, the thirteenth mounting plate 55 is fixedly connected to the third moving platform 437, two sixth guide rails 56 are provided, the sixth guide rail 56 is mounted on the fourth moving platform 524 by bolts, and the third mounting seat 57 comprises a first bracket 571, A fourth angle steel 572, a fifth angle steel 573, a third motor mounting seat 574, a thirteenth support 575, four first supports 571, two first supports 571 are mounted on the fifth moving platform 543 by bolts at the lower end thereof, two fourth angle steels 572 are mounted between two first supports 571 by bolts, two fifth angle steels 573 are mounted between two first supports 571 by bolts, the third motor mounting seat 574 is mounted between two first supports 571 by bolts, the thirteenth support 575 is mounted between two first supports 571 by bolts, the fourth mounting seat 58 comprises a bottom frame 581, a seventh guide rail 582, a sixth angle steel 583, a seventh angle steel 584, an eighth angle steel 585, a first slider 586, a second slider 587, the bottom frame 581 is mounted on the seventh guide rail 582, the bottom frame 581 forms a moving pair with the seventh guide rail 582, the number of the seventh guide rails 582 is four, one end of each seventh guide rail 582 is mounted on a fifth angle steel 573 by bolts, the other end of each seventh guide rail 582 is mounted on a fifth moving platform 543 by bolts, the number of the sixth steels 583 is four, the sixth steels 583 are mounted on the chassis 581 by bolts, the seventh angle steels 584 are mounted between two first sliders 586 by bolts, the eighth angle steels 585 are mounted between two second sliders 587 by bolts, the first sliders 586 are mounted on the seventh guide rails 582, the first sliders 586 and the seventh guide rails 582 form moving pairs, the second sliders 587 are mounted on the seventh guide rails 582, the second sliders 587 and the seventh guide rails 582 form moving pairs, and the workpiece clamping mechanism 59 comprises a round rod 591, an eighth motor 592, a sixth screw 593, a clamping mechanism 594, a first screw, a second screw 592, a second screw, a third screw, a fourth, A second frame 595, a sixth screw 596, a fourth slider 597, a fifth slider 598, and an eighth guide rail 599, wherein four round rods 591 are provided, one end of each round rod 591 is fixed on the second frame 595, the other end of each round rod 591 is fixed on the fifth slider 598, the eighth motor 592 is mounted on a third motor mounting seat 574 by bolts, the sixth screw 593 is mounted on an output shaft of the eighth motor 592, eight clamping mechanisms 594 are provided, each clamping mechanism 594 comprises a third slider 5941, a first clamping bar 5942, a second clamping bar 5943 and a knob 5944, the third slider 5941 is mounted on the round rod 591, the third slider 5941 and the round rods 591 form a moving pair, the first clamping bar 5942 is mounted on the third slider 5941 by bolts, the second clamping bar 5943 is mounted on the third slider 5941 by bolts, the knob 5944 is mounted on the third slider 5941, the fourth slider 5941 is provided with the fourth guide rail 599, the second bracket 595 is fixedly connected to a sixth screw 596, there are two sixth screws 596, the sixth screw 596 is mounted on a sixth screw 593, the sixth screw 596 and the sixth screw 593 form a screw pair, there are four fourth sliding blocks 597, the fourth sliding blocks 597 are fixedly connected to the second bracket 595, the fourth sliding blocks 597 and an eighth guide rail 599 form a moving pair, there are four fifth sliding blocks 598, the fifth sliding blocks 598 are mounted on the eighth guide rail 599, the fifth sliding blocks 598 and the eighth guide rail 599 form a moving pair, there are four eighth guide rails 599, and the eighth guide rail 599 is fixedly connected between two sixth steel bars 583.

As shown in fig. 1 and 4, the auxiliary blowing device 6 includes a second air pump 61, a second hose 62, a three-way valve 63, a first coaxial blowing mechanism 64, a first bypass blowing mechanism 65, a second coaxial blowing mechanism 66, a second bypass blowing mechanism 67, a seventh hose 68, and a four-way valve 69, the second air pump 61 is mounted on the thirteenth mounting plate 55 by bolts, one end of the second hose 62 is connected to the second air pump 61, the other end of the second hose 62 is connected to the four-way valve 69, the first coaxial blowing mechanism 64 includes a third hose 641, a first base 642, a first telescopic rod 643, a second base 644, a second telescopic rod 645, and a first air nozzle 646, one end of the third hose 641 is connected to the four-way valve 69, the other end of the third hose 641 is connected to the first base, the first base 642 is mounted on the thirteenth mounting plate 55 by bolts, the first extension bar 643 is installed on the first base 642, the first extension bar 643 forms a moving pair with the first base 642, the second base 644 is installed on the first extension bar 643 through a bolt, the second extension bar 645 is installed on the second base 644, the second extension bar 645 forms a moving pair with the second base 644, the first air nozzle 646 is installed on the second extension bar 645, the first air nozzle 646 forms a ball pair with the second extension bar 645, the first bypass blowing mechanism 65 includes a fourth hose 651, a third base 652, a third extension bar 653, a fourth base 654, a fourth extension bar 655, and a second air nozzle 656, one end of the fourth hose 651 is connected to the four-way valve 69, the other end of the fourth hose 651 is connected to the third base 652, the third base 652 is installed on the thirteenth base 55 through a bolt, the third extension bar 653 is installed on the third base 652, the third extension rod 653 and the third base 652 form a moving pair, the fourth base 654 is installed on the third extension rod 653 through a bolt, the fourth extension rod 655 is installed on the fourth base 654, the fourth extension rod 655 and the fourth base 654 form a moving pair, the second air nozzle 656 is installed on the fourth extension rod 655, the second air nozzle 656 and the fourth extension rod 655 form a ball pair, the second coaxial blowing mechanism 66 comprises a fifth hose 661, a fifth base 662, a fifth extension rod 663, a sixth base 664, a sixth extension rod 665 and a third air nozzle 666, one end of the fifth hose 661 is connected to the three-way valve 63, the other end of the fifth hose 661 is connected to the fifth base 662, the fifth base 662 is installed on the thirteenth mounting plate 55 through a bolt, the fifth extension rod 663 is installed on the fifth base 662, the fifth extension rod 663 and the fifth base 662 form a moving pair, the sixth base 664 is mounted on a fifth telescopic rod 663 through bolts, the sixth telescopic rod 665 is mounted on the sixth base 664, the sixth telescopic rod 665 and the sixth base 664 form a moving pair, the third air nozzle 666 is mounted on the sixth telescopic rod 665, the third air nozzle 666 and the sixth telescopic rod 665 form a ball pair, the second paraxial air blowing mechanism 67 comprises a sixth hose 671, a seventh base 672, a seventh telescopic rod 673, an eighth base 674, an eighth telescopic rod 675 and a fourth air nozzle 676, one end of the sixth hose 671 is connected to a three-way valve 63, the other end of the sixth hose 671 is connected to the seventh base 672, the seventh base 672 is mounted on a thirteenth mounting plate 55 through bolts, the seventh telescopic rod 673 is mounted on the seventh base 672, the seventh telescopic rod 673 and the seventh base form a moving pair, the eighth base 674 is mounted on the seventh telescopic rod 673 through bolts, the eighth expansion link 675 is mounted on the eighth base 674, the eighth expansion link 675 and the eighth base 674 form a sliding pair, the fourth air nozzle 676 is mounted on the eighth expansion link 675, the fourth air nozzle 676 and the eighth expansion link 675 form a ball pair, one end of the seventh hose 68 is connected to the four-way valve 69, the other end of the seventh hose 68 is connected to the three-way valve 63, and the four-way valve 69 is mounted on the thirteenth mounting plate 55 through bolts.

Before processing, the device is adjusted to be horizontal by the rotating support legs 115, and the knob 5944 is rotated according to the size of the workpiece 226, so that the clamping mechanism 594 moves to a proper position along the round rod 591, and workpieces 226 with different sizes can be clamped; the controller 7 is started, the controller 7 controls the third motor 3352 and the fourth motor 3452 to be started, the third motor 3352 is started to drive the first screw rod 3353 installed on the output shaft of the third motor 3352 to rotate, and further, the first screw nut 3354 drives the first focusing objective lens 3355 to move to a proper focusing position, the fourth motor 3452 is started to drive the second screw rod 3453 installed on the output shaft of the fourth motor 3452 to rotate, and further, the second screw nut 3454 drives the second focusing objective lens 3455 to move to a proper focusing position, the controller 7 controls the third motor 3352 and the fourth motor 3452 to be closed, the laser focusing process is realized through the steps, the laser spot size can be accurately controlled, and therefore, the diameter of a processing hole is controlled, and the laser processing efficiency is improved.

During processing, the controller 7 controls the second motor 221 to start, drives the second driving gear 2221 installed on the output shaft of the second motor 221 to rotate, and further drives the second driven gear 2222 to rotate, so that the driving roller 2231 and the driven roller 2232 drive the conveyor belt 2233 to rotate, the workpiece placement box 225 is moved to a specified position, the controller 7 controls the second motor 221 to close, automatic transportation of the workpiece placement box 225 can be realized through the steps, and the workpiece 226 is brought to an adsorption position.

The controller 7 controls the fifth motor 411, the sixth motor 422 and the seventh motor 432 to start simultaneously, the fifth motor 411 is started to drive the third screw 412 arranged on the output shaft of the fifth motor 411 to rotate, and then the third screw 417 drives the first moving platform 416 to move to a designated position along the second guide rail 413, the sixth motor 422 is started to drive the fourth screw 423 mounted on the output shaft of the sixth motor 422 to rotate, and then the fourth screw 428 drives the second moving platform 427 to move to a designated position along the third guiding rail 424, the seventh motor 432 is started, the fifth screw 433 arranged on the output shaft of the seventh motor 432 is driven to rotate, and then the fifth screw 438 drives the third moving platform 437 to move to a designated position along the fourth guide rail 434, and the controller 7 controls the fifth motor 411, the sixth motor 422 and the seventh motor 432 to be turned off, so that the workpiece clamping mechanism 59 is moved to the clamping position through the above steps.

The controller 7 controls the first hydraulic cylinder 211 to start, drives the seventh mounting plate 212 mounted on the first hydraulic cylinder 211 to move to a specified position, and the controller 7 controls the first hydraulic cylinder 211 to close; the controller 7 controls the first air pump 21731 to be started, the first air pump 21731 transmits the adsorption force to the suction cup 21734 through the first hose 21732 and the circular tube 21733, and the suction cup 21734 adsorbs the workpiece 226; the controller 7 controls the first motor 2171 to be started, so as to drive the first driving gear 21721 arranged on the output shaft of the first motor 2171 to rotate, so as to drive the first driven gear 21722 to rotate, so as to drive the workpiece 226 to rotate to a vertical angle through the rotating shaft 21723 and the circular tube 21733, and the controller 7 controls the first motor 2171 to be turned off; the controller 7 controls the first hydraulic cylinder 211 and the second hydraulic cylinder 215 to be started simultaneously, the first hydraulic cylinder 211 is started to drive the seventh mounting plate 212 mounted on the first hydraulic cylinder 211 to move to a specified position, the second hydraulic cylinder 215 is started to drive the second mounting frame 216 mounted on the second hydraulic cylinder 215 to move to a specified position along the first guide rail 213, and the controller 7 controls the first hydraulic cylinder 211 and the second hydraulic cylinder 215 to be closed; the controller 7 controls the eighth motor 592 to be started, drives the sixth screw 593 mounted on the output shaft of the eighth motor 592 to rotate, further drives the clamping mechanism 594 to move towards the middle through the sixth screw 596, the second bracket 595, the fourth slider 597 and the round rod 591, and clamps the workpiece 226, and after clamping is completed, the controller 7 controls the first air pump 21731 to be closed and controls the first workpiece conveying mechanism 21 to reset; by installing the two first workpiece conveying mechanisms 21, the alternate feeding and discharging can be realized, and the processing efficiency of the workpiece 226 is greatly accelerated.

The controller 7 controls the fifth motor 411, the sixth motor 422 and the seventh motor 432 to start simultaneously, the fifth motor 411 is started to drive the third screw 412 arranged on the output shaft of the fifth motor 411 to rotate, and then the third screw 417 drives the first moving platform 416 to move to a designated position along the second guide rail 413, the sixth motor 422 is started to drive the fourth screw 423 mounted on the output shaft of the sixth motor 422 to rotate, and then the fourth screw 428 drives the second moving platform 427 to move to a designated position along the third guiding rail 424, the seventh motor 432 is started, the fifth screw 433 arranged on the output shaft of the seventh motor 432 is driven to rotate, and then the fifth screw 438 drives the third moving platform 437 to move to a designated position along the fourth guide rail 434, and the controller 7 controls the fifth motor 411, the sixth motor 422 and the seventh motor 432 to be turned off, so that the workpiece 226 is moved to the laser processing position through the above steps.

The controller 7 controls the ultrasonic generator 51 to start, the ultrasonic generator 51 outputs a given amplitude and frequency according to the processing requirement, and the workpiece clamping mechanism 59 generates vibration along the X-axis direction through the first ultrasonic transducer 521, the first ultrasonic amplitude transformer 522 and the fourth moving platform 524; the workpiece clamping mechanism 59 generates vibration along the Z-axis direction through the second ultrasonic transducer 531 and the second ultrasonic amplitude transformer 532; through the third ultrasonic transducer 541, the third ultrasonic amplitude transformer 542 and the fifth moving platform 543, the workpiece generates vibration along the Y-axis direction, three-degree-of-freedom ultrasonic high-frequency vibration of the workpiece 226 is finally realized through the steps, the adhesion of a melt to the side wall of the hole can be greatly reduced, slag generated by machining is easier to discharge, and the number of degrees of freedom of vibration can be adjusted according to different machining requirements.

The controller 7 controls the second air pump 61 to be activated, the generated air reaches the four-way valve 69 through the second hose 62 and is divided into three parts, the first part of air is blown out from the first air nozzle 646 through the third hose 641, the first base 642, the first telescopic rod 643, the second base 644 and the second telescopic rod 645, the second part of air is blown out from the second air nozzle 656 after passing through the fourth hose 651, the third base 652, the third telescopic rod 653, the fourth base 654 and the fourth telescopic rod 655, the third part of air is transmitted to the three-way valve 63 through the seventh hose 68, the air transmitted to the three-way valve 63 is divided into two parts, one part of air is blown out from the third air nozzle 666 through the fifth hose 661, the fifth base 662, the fifth telescopic rod 663, the sixth base 664 and the sixth telescopic rod 665, and the other part of air is blown out from the sixth hose 672, the seventh base 673, the eighth base 674, the seventh base 674, The eighth telescopic rod 675 blows out from the fourth air nozzle 676, so that double-sided coaxial and paraxial blowing of the workpiece 226 during laser processing is realized through the steps, slag during processing can be removed to the maximum extent, and the laser processing quality is improved.

The controller 7 controls the laser 31 to start, the laser 31 emits a laser beam, and the laser beam is divided into two laser beams after passing through the beam splitter 32; one beam of laser passes through a first reflector 331, a first shutter 332, a second reflector 333, a third reflector 334 and a first focusing objective 3355 and then irradiates one surface of the workpiece 226, so as to process the workpiece 226; another laser beam passes through the second optical shutter 341, the fourth reflecting mirror 342, the fifth reflecting mirror 343, the sixth reflecting mirror 344 and the second focusing objective 3455 and then irradiates the other surface of the workpiece 226 to process the workpiece 226, so that double-sided laser processing is realized through the steps, and a single-sided laser beam can be used for processing according to different processing requirements; the first shutter 332 and the second shutter 341 are attached to control the frequency of laser pulses and the switching between the double-sided laser and the single-sided laser.

After the processing is finished, the controller 7 controls the fifth motor 411, the sixth motor 422 and the seventh motor 432 to start, the fifth motor 411 starts to drive the third screw 412 arranged on the output shaft of the fifth motor 411 to rotate, and then the third screw 417 drives the first moving platform 416 to move to a designated position along the second guide rail 413, the sixth motor 422 is started to drive the fourth screw 423 mounted on the output shaft of the sixth motor 422 to rotate, and then the fourth screw 428 drives the second moving platform 427 to move to a designated position along the third guiding rail 424, the seventh motor 432 is started, the fifth screw 433 arranged on the output shaft of the seventh motor 432 is driven to rotate, and the third moving platform 437 is driven by the fifth nut 438 to move to a designated position along the fourth guide rail 434, and the controller 7 controls the fifth motor 411, the sixth motor 422 and the seventh motor 432 to be turned off, so that the processed workpiece 226 is moved to the adsorption position through the above steps.

At this time, the controller 7 controls the first hydraulic cylinder 211 to start, drives the seventh mounting plate 212 mounted on the first hydraulic cylinder 211 to move to a designated position, and the controller 7 controls the first hydraulic cylinder 211 to close; the controller 7 controls the first air pump 21731 to be started, the first air pump 21731 transmits the adsorption force to the suction cup 21734 through the first hose 21732 and the circular tube 21733, and the suction cup 21734 adsorbs the workpiece 226; the controller 7 controls the eighth motor 592 to start, drives the sixth screw 593 mounted on the output shaft of the eighth motor 592 to rotate, and further drives the clamping mechanism 594 to move towards two sides through the sixth screw 596, the second bracket 595, the fourth slider 597 and the round rod 591, so as to loosen the workpiece 226; the controller 7 controls the first motor 2171 to start, and drives the first driving gear 21721 installed on the output shaft of the first motor 2171 to rotate, and then drives the first driven gear 21722 to rotate, so as to drive the workpiece 226 to rotate to a horizontal angle through the rotating shaft 21723 and the circular tube 21733, and the controller 7 controls the first motor 2171 to close; the controller 7 controls the first hydraulic cylinder 211 and the second hydraulic cylinder 215 to start, drives the seventh mounting plate 212 mounted on the first hydraulic cylinder 211 to move, drives the second mounting frame 216 mounted on the second hydraulic cylinder 215 to move to the workpiece boxing position along the first guide rail 213, and the controller 7 controls the first hydraulic cylinder 211 and the second hydraulic cylinder 215 to close; the controller 7 controls the first air pump 21731 to be turned off, and places the workpiece 226 on the workpiece setting cassette 225; the laser processing operation of the workpiece 226 is performed once through the above steps, and the controller 7 controls the resetting of each mechanism.

In the actual processing process, the device can adjust the processing in real time according to the data collected by the first high-speed camera 81 and the second high-speed camera 82, such as the amplitude of vibration of the workpiece 226, the time of respective processing of the two sides by laser, and the like.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a supplementary two-sided laser beam machining device of high-efficient multi freedom ultrasonic vibration which characterized in that: the device comprises a rack, an automatic feeding and discharging device, a double-sided laser processing device, a three-degree-of-freedom moving device, an ultrasonic vibration auxiliary device, an auxiliary blowing device, a controller and a monitoring device, wherein the rack comprises a first mounting frame, a first mounting plate, a second mounting plate, a third mounting plate, a fourth mounting plate, a fifth mounting plate and a sixth mounting plate, the first mounting frame comprises four square steels, first angle steels, second angle steels, third angle steels and supporting legs, the number of the square steels is four, the square steels are connected together through bolts, the number of the first angle steels is four, the lower ends of the first angle steels are arranged on the square steels through bolts, the number of the second angle steels is four, the upper ends of the second angle steels are arranged on the square steels through bolts, the number of the third angle steels is two, the third angle steels are arranged between the two first angle steels through bolts, the number of the supporting legs is four, and the supporting legs are arranged at the, the first mounting plate is mounted between the two third angle steels through bolts, the second mounting plate is mounted between the two first angle steels through bolts, the third mounting plate is mounted between the two first angle steels through bolts, the fourth mounting plate is mounted between the two square steels through bolts, the fifth mounting plate is mounted between the two first angle steels through bolts, the sixth mounting plate is mounted between the two first angle steels through bolts, the automatic loading and unloading device is mounted on the frame, the double-sided laser processing device is mounted on the frame, the three-degree-of-freedom moving device is mounted on the fourth mounting plate, the ultrasonic vibration auxiliary device is mounted on the three-degree-of-freedom moving device, the auxiliary blowing device is mounted on the ultrasonic vibration auxiliary device, and the controller is mounted on the second mounting plate through bolts, the monitoring device is arranged on the rack and comprises a first high-speed camera and a second high-speed camera, the first high-speed camera is arranged on the fifth mounting plate, and the second high-speed camera is arranged on the sixth mounting plate;

the automatic loading and unloading device comprises a first workpiece conveying mechanism and a second workpiece conveying mechanism, wherein the number of the first workpiece conveying mechanisms is two, the first workpiece conveying mechanism is arranged on a second mounting plate and comprises a first hydraulic cylinder, a seventh mounting plate, a first guide rail, an eighth mounting plate, a second hydraulic cylinder, a second mounting frame and a workpiece overturning mechanism, the first hydraulic cylinder comprises a first hydraulic cylinder body and a first piston rod, the first hydraulic cylinder body is arranged on the second mounting plate through a bolt, the first piston rod is arranged on the first hydraulic cylinder body, the first piston rod and the first hydraulic cylinder body form a moving pair, the seventh mounting plate is arranged at the lower end of the first piston rod through a bolt, the number of the first guide rail is two, the first guide rail is arranged on the seventh mounting plate through a bolt, the eighth mounting plate is arranged on the seventh mounting plate through a bolt, the second hydraulic cylinder comprises a second hydraulic cylinder body and a second piston rod, the second hydraulic cylinder body is arranged on the eighth mounting plate through bolts, the second piston rod is arranged on the second hydraulic cylinder body, the second piston rod and the second hydraulic cylinder body form a moving pair, the second mounting frame is arranged on the first guide rail, the second mounting frame and the first guide rail form a moving pair, the workpiece turnover mechanism comprises a first motor, a first gear transmission mechanism and a workpiece adsorption mechanism, the first motor is arranged on the second mounting frame through bolts, the first gear transmission mechanism comprises a first driving gear, a first driven gear and a rotating shaft, the first driving gear is arranged on an output shaft of the first motor through a key, the first driven gear is arranged on the rotating shaft through a key, and the first driven gear is meshed with the first driving gear, the pivot pass through the bearing and install on the second mounting bracket, work piece adsorption mechanism include first air pump, first hose, pipe, sucking disc, first air pump pass through the bolt and install on the second mounting bracket, the one end of first hose install on first air pump, the other end of first hose is installed on the pipe, the pipe pass through the bolt and install in the pivot, the sucking disc install on the pipe, second work piece conveying mechanism include second motor, second gear drive, take conveying mechanism, baffle, work piece arrangement box, work piece, the second motor pass through the bolt and install on the third mounting panel, second gear drive include second driving gear, second driven gear, the second driving gear pass through the key and install on the output shaft of second motor, take conveying mechanism include driving roll, a driving roll, The automatic feeding device comprises a driven roller, a conveying belt, first supports and second supports, wherein the driving roller is arranged between the two first supports through bearings, the driven roller is arranged between the two second supports through bearings, the conveying belt is arranged on the driving roller and the driven roller, the number of the first supports is two, the first supports are arranged on a third mounting plate through bolts, the number of the second supports is two, the second supports are arranged on the third mounting plate through bolts, the second driven gear is arranged on the driving roller through keys, the second driven gear is meshed with a second driving gear, the number of baffles is two, the baffles are arranged on the third mounting plate through bolts, the number of workpiece arranging boxes is four, the workpiece arranging boxes are arranged on the conveying belt, and workpieces are arranged in the workpiece arranging boxes;

the double-sided laser processing device comprises a laser, a beam splitter, a first laser processing mechanism and a second laser processing mechanism, wherein the laser is installed on a first installation plate through bolts, the beam splitter is installed on the first installation plate through bolts, the first laser processing mechanism comprises a first reflector, a first optical shutter, a second reflector, a third reflector and a first objective focusing mechanism, the first reflector is installed on the first installation plate through bolts, the first optical shutter is installed on the first installation plate through bolts, the second reflector is installed on the first installation plate through bolts, the third reflector is installed on a sixth installation plate through bolts, the first objective focusing mechanism comprises a first motor installation seat, a third motor, a first screw rod, a first screw nut, a first focusing objective and a first T-shaped frame, the first motor mounting seat is mounted on the sixth mounting plate through bolts, the third motor is mounted on the first motor mounting seat through bolts, the first screw rod is mounted on an output shaft of the third motor, the first screw nut is mounted on the first screw rod, the first screw nut and the first screw rod form a screw pair, the first focusing objective lens is mounted on the first screw nut through bolts, the first focusing objective lens and the first T-shaped frame form a moving pair, the first T-shaped frame is mounted on the sixth mounting plate through bolts, the second optical gate laser processing mechanism comprises a second optical gate, a fourth optical gate, a fifth optical gate, a sixth optical gate and a second optical gate focusing mechanism, the second optical gate is mounted on the first mounting plate through bolts, the fourth optical gate is mounted on the first mounting plate through bolts, and the fifth optical gate is mounted on the first mounting plate through bolts, the sixth reflector is mounted on a fifth mounting plate through a bolt, the second objective focusing mechanism comprises a second motor mounting seat, a fourth motor, a second lead screw, a second nut, a second focusing objective and a second T-shaped frame, the second motor mounting seat is mounted on the fifth mounting plate through a bolt, the fourth motor is mounted on the second motor mounting seat through a bolt, the second lead screw is mounted on an output shaft of the fourth motor, the second nut is mounted on the second lead screw, the second nut and the second lead screw form a screw pair, the second focusing objective is mounted on the second lead screw through a bolt, the second focusing objective and the second T-shaped frame form a moving pair, and the second T-shaped frame is mounted on the fifth mounting plate through a bolt;

the three-degree-of-freedom moving device comprises a first moving mechanism, a second moving mechanism and a third moving mechanism, wherein the first moving mechanism comprises a fifth motor, a third screw rod, a second guide rail, a third support, a fourth support, a first moving platform and a third screw nut, the fifth motor is arranged on a fourth mounting plate through bolts, the third screw rod is arranged on an output shaft of the fifth motor, the number of the second guide rails is two, the second guide rail is arranged on the fourth mounting plate through bolts, the third support is arranged on the fourth mounting plate through bolts, the fourth support is arranged on the fourth mounting plate through bolts, the first moving platform is arranged on the second guide rail, the first moving platform and the second guide rail form a moving pair, the third screw nut is arranged at the bottom of the first moving platform through bolts, and the third screw nut and the third screw rod form a screw pair, the second moving mechanism comprises a ninth mounting plate, a sixth motor, a fourth screw rod, a third guide rail, a fifth support, a sixth support, a second moving platform and a fourth screw nut, the ninth mounting plate is mounted on the first moving platform through bolts, the sixth motor is mounted on the ninth mounting plate through bolts, one end of the fourth screw rod is mounted on an output shaft of the sixth motor, the other end of the fourth screw rod is mounted on the fifth support through a bearing, the number of the third guide rails is two, the third guide rail is mounted on the ninth mounting plate through bolts, the fifth support is mounted on the ninth mounting plate through bolts, the sixth support is mounted on the ninth mounting plate through bolts, the second moving platform is mounted on the third guide rail, a moving pair is formed by the second moving platform and the third guide rail, and the fourth screw nut is mounted at the bottom of the second moving platform through bolts, the fourth screw and the fourth screw form a screw pair, the third moving mechanism comprises a tenth mounting plate, a seventh motor, a fifth screw, a fourth guide rail, a seventh support, an eighth support, a third moving platform and a fifth screw, the tenth mounting plate is fixedly connected with the second moving platform, the seventh motor is mounted on the seventh support, one end of the fifth screw is mounted on an output shaft of the seventh motor, the other end of the fifth screw is mounted on the eighth support through a bearing, the number of the fourth guide rail is two, the fourth guide rail is mounted on the tenth mounting plate through a bolt, the seventh support is fixedly connected with the tenth mounting plate, the eighth support is fixedly connected with the second moving platform, the third moving platform is mounted on the fourth guide rail, the third moving platform and the fourth guide rail form a moving pair, the fifth screw is mounted at the bottom of the third moving platform through a bolt, the fifth screw nut and the fifth screw rod form a moving pair;