CN116372371A

CN116372371A - Automatic welding system and welding method for welding ring

Info

Publication number: CN116372371A
Application number: CN202310394579.3A
Authority: CN
Inventors: 胡先德; 侯世玉; 郝国华; 鲍瑞
Original assignee: Anqing Scherdel Automotive Parts Co ltd
Current assignee: Anqing Scherdel Automotive Parts Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-07-04

Abstract

The invention discloses an automatic welding system for a welding ring and a welding method thereof, comprising a workbench, wherein a turntable is rotatably arranged on the workbench, a bearing seat is arranged at the central position of the workbench, a plurality of stations are uniformly distributed on the workbench at the outer side of the circumference of the turntable, and a feeding station, a photographing positioning station, a laser welding station, a photographing checking station, an annealing station and a material taking station are sequentially arranged on the workbench, and a plurality of fixing tools which are in one-to-one correspondence with the stations and used for clamping the welding ring are arranged on the turntable. The invention has reasonable structural design, realizes continuous automatic feeding through the switching of the cyclic feeding of a plurality of storage stations, confirms the welding position by CCD photographing before welding the product, accurately determines the welding position, controls the rear welding head to move to the corresponding position by the background, simultaneously realizes high-quality welding of the welding ring end by welding laser, and realizes online annealing of the welded product; the realization equipment respectively loads the qualified welding ring and the unqualified welding ring into different material receiving boxes.

Description

Automatic welding system and welding method for welding ring

Technical Field

The invention relates to the technical field of welding ring production and processing, in particular to an automatic welding system and a welding method of a welding ring.

Background

The new energy automobile springs mainly comprise motor springs, automobile seat springs, front and rear stabilizer bars, clutch springs, gearbox springs, brake system springs, antenna springs, door lock system springs, skylight springs, automobile headlight clamp springs, electric tail gate springs, wiper springs, charging pile system springs and the like, and are widely applied; the wave spring has the unique advantage of saving space and can be used for replacing a round wire spring. By reducing the working height of the spring, the wave spring also reduces the volume of the spring cavity. It achieves cost savings with smaller component sizes and less manufacturing materials. The wave spring belongs to load bearing equipment. They occupy the gap and compensate for dimensional variations in the device. By gradually accumulating or suddenly changing the load to bring the wave spring to a predetermined working height, almost any range of force can be produced. In this way, an accurate spring rate of the load in proportion to the degree of deformation can be established. Both dynamic and static spring applications require functional requirements. Each spring has special performance characteristics to meet various precise operating conditions.

The welding ring is a metal ring piece, can be applied to structural fields such as wave spring, packing ring, connecting piece, and the like, and it forms at unloading round coil breakage, consequently need weld end department, and most in the prior art is through the manual work welding, before the corresponding detection device is placed to the manual work again after the welding, whether accords with industry standard through the machine detection, and its degree of automation is low, and along with artificial intelligence is developing fast, and machine vision is to replace the people's eye with the machine to make measurement and judgement. The machine vision system converts the shot target into an image signal through a machine vision product (namely an image shooting device, namely CMOS and CCD, respectively) and transmits the image signal to a special image processing system. The machine vision detecting system adopts CCD camera to convert the detected target into image signal, and transmits the image signal to special image processing system, and the image processing system performs various operations on the signals to extract the characteristics of the target according to the pixel distribution, brightness, color and other information.

The patent publication No. CN112872589A discloses a welding ring welding assembly visual detection device, which is provided with a CCD camera, a carrying plate, a laser welding head, a positioning lamp and an electric telescopic rod, so that the device optimizes the performance of the device; but there are still the following problems in the application:

(1) The feeding process adopts manual feeding, special personnel is required to perform the whole-process operation, and because the consistency of manual clamping to the feeding station is poor, the CCD camera generally needs to move when the laser welding head is welded after photographing and feeding back the welding seam position, and the welding process can lead to inconsistent positions of the manual welding seam, so that the time for taking the whole welding process is wasted, and the welding efficiency is reduced;

(2) The heat treatment process in the application is completed in the heat treatment process at other positions, the welded welding ring needs to be conveyed to the heat treatment process for operation, and also needs to be completed by corresponding personnel, so that the operation is complicated,

(3) The material is taken by adopting a manual work in the material discharging process, then the material is placed in a material frame, and then the material is discharged by adopting a manual clamp after the material is taken, so that the labor intensity of the manual work is high, the operation is troublesome, and the time and the labor are wasted;

therefore, the whole process of the patent does not realize continuity, and the processing operation corresponding to the next welding ring can be performed after the last welding ring finishes the processes of clamping, detecting, welding, re-detecting and blanking, so that the real automation is not realized, and the process is still to be further improved; how to realize the whole-course automatic production and processing of the welding ring, no corresponding process and production line exist in the market at present.

Disclosure of Invention

The invention aims to overcome the defects and the shortcomings in the prior art, and provides an automatic welding system and a welding method for a welding ring, which solve various problems in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

The automatic welding system for the welding ring comprises a workbench, wherein a turntable is rotatably arranged on the workbench, a bearing seat is arranged at the central position of the workbench, the turntable is fixedly arranged on the bearing seat, the turntable is driven by a motor below the turntable, a plurality of stations are uniformly distributed on the workbench at the outer side of the circumference of the turntable, a feeding station, a photographing positioning station, a laser welding station, a photographing checking station, an annealing station and a material taking station are sequentially arranged on the workbench, and a plurality of fixed tools which are in one-to-one correspondence with the stations and used for clamping the welding ring are arranged on the turntable;

a feeding mechanism for circularly and automatically feeding is arranged at the outer side of the workbench corresponding to the feeding station, and a reciprocating material taking and discharging mechanism is arranged between the feeding station and the feeding mechanism;

the stand column is arranged on the workbench corresponding to the photographing and positioning station, and a CCD component right above the station fixing tool is arranged on the stand column through a fixing support;

the workbench corresponding to the laser welding station is provided with a support frame, and the support frame is provided with welding components with adjustable spatial positions in the transverse, longitudinal and vertical directions;

the device comprises a working table, a photographing inspection station, a cleaning mechanism, a slide seat, a photographing mechanism and a cleaning mechanism, wherein the working table corresponding to the photographing inspection station is provided with a supporting vertical frame, a guide rail facing the radial direction of a turntable is erected on the supporting vertical frame, the guide rail is provided with the slide seat, and the slide seat is provided with the photographing mechanism and the cleaning mechanism which are arranged at intervals from front to back;

The annealing station comprises a fixed bracket, and an annealing mechanism with adjustable spatial positions in the transverse, longitudinal and vertical directions is arranged on the fixed bracket;

two parallel material receiving circulating conveyor belts are arranged on the outer side of the workbench corresponding to the material taking station, and a discharging mechanism is arranged between the qualified piece circulating conveyor belt and the unqualified piece circulating conveyor belt.

The feeding mechanism comprises a storage platen, a storage turntable is rotatably arranged on the storage platen, radial grooves are uniformly distributed on the circumferential edge of the storage turntable, the grooves form a plurality of radially protruding storage stations with the storage turntable at intervals, sleeves for sleeving welding rings are respectively arranged on the storage stations, lifting sleeves capable of sliding up and down are sleeved on the sleeves, a material taking station is arranged on the storage platen, the material taking station is opposite to the material feeding station, lifting mechanisms capable of lifting the lifting sleeves are arranged between the material taking station and the material feeding station, each lifting mechanism comprises a lifting claw, a concave cavity matched with the outer edge of one side of the lifting sleeve is formed in one side of each lifting claw, gaps are reserved between the inner side faces of the concave cavities and the outer circle of the sleeve as well as the protruding edges of the storage turntable of the storage station, and lifting of each lifting claw is driven by a screw rod lifting assembly on one side.

The outer side wall of the sleeve is provided with a clamping groove which is vertically arranged, a core rod which is convenient for positioning two ends of the welding ring is clamped in the clamping groove, and the section of the core rod is T-shaped; the upper end face of the jacking sleeve is a step face, an annular boss for pushing the welding ring is arranged on the inner side of the jacking sleeve, a guide groove is formed in the inner side wall of the jacking sleeve, and the guide groove is in guide fit with the core rod;

the automatic feeding device is characterized in that a vertically arranged photoelectric stand column is arranged on one side of the lifting mechanism, a photoelectric sensor used for detecting whether materials exist on the sleeve or not is arranged on the photoelectric stand column, a reflector stand column is correspondingly arranged on a stock bedplate on the inner side of the sleeve respectively, a reflector fixing plate is fixedly arranged at the upper end and the lower end of the reflector stand column respectively through optical axis fixing codes, openings corresponding to the positions of the reflector fixing plates are respectively arranged at the opening part of the sleeve and the lower end part of the sleeve, and the openings are used for transmitting light rays emitted by the photoelectric sensor, sensing the position and the existence of the materials and switching automatic feeding of the storage turntable.

Get feed mechanism including the support column, erect the crossbeam of orientation material loading station on the support column, the direction of one side of crossbeam is installed the guide slide holder, the removal of guide slide holder is through lead screw subassembly drive, liftable get the blowing cylinder on the guide slide holder, get the piston rod of blowing cylinder and stretch out the end and install and get the flitch, get the bottom face of flitch install a plurality of intervals setting correspond complex stopper with the weld ring excircle position, the bottom face of stopper is the step face that is used for spacing weld ring up end and medial surface, the middle part of stopper is equipped with the cavity, the clamping is fixed with magnet in the cavity, still can install on the bottom face of getting the flitch with the circumference position of stopper staggering on install the magnet of supplementary getting the material.

The fixing tool comprises a fixing sleeve, a limiting boss for clamping a welding ring is arranged on the inner side of the upper end face of the fixing sleeve, radially arranged grooves are uniformly distributed on the limiting boss, clamping grooves corresponding to the grooves are respectively formed in the outer side of the upper end face of the fixing sleeve, supporting blocks for supporting the edge of the welding ring are clamped in the clamping grooves, and a pressing claw assembly capable of overturning synchronously is arranged on the inner side of the fixing sleeve corresponding to the grooves;

the pressing claw assembly comprises a fixed block arranged on the inner side of a fixed sleeve, the fixed block is hinged with a pressing claw, wedge-shaped blocks used for guiding and limiting the outer edge of a product are respectively arranged on the bottom end face of the front end part of the pressing claw, the bottom ends of the pressing claw are respectively hinged to a lifting block through a hinge shaft, the lifting blocks are arranged in the fixed sleeve, and lifting of the lifting blocks is driven by a cylinder at the bottom ends.

The welding assembly comprises a cross beam erected on a support frame, a transverse moving seat is arranged on the cross beam in a guiding manner, a longitudinal beam is arranged on the transverse moving seat, a longitudinal moving seat is arranged on the longitudinal beam in a guiding manner, a vertical beam is arranged on one side of the longitudinal moving seat, a vertical moving seat is arranged on the vertical beam in a guiding manner, and a laser welding head for welding is fixedly arranged on the vertical moving seat; and the movement of the transverse moving seat, the longitudinal moving seat and the vertical moving seat is respectively driven by corresponding screw rod assemblies.

The cleaning mechanism comprises a polishing head, the polishing head is rotatably mounted on a vertical plate through a rotating shaft, the vertical plate is fixedly mounted on a fixed plate on one side of the sliding seat, and the rotation of the polishing head is driven by a motor above the polishing head; the photographing mechanism is located right in front of the polishing mechanism and comprises a connecting plate fixedly connected with the fixing plate, and a CCD assembly is fixedly installed on the connecting plate.

The annealing mechanism comprises a transverse beam erected on a fixed support, a transverse guide seat is arranged on the transverse beam in a guiding manner, a longitudinal beam is arranged on the transverse guide seat, a longitudinal guide seat is arranged on the longitudinal beam in a guiding manner, a vertical beam is arranged on one side of the longitudinal guide seat, a vertical guide seat is arranged on the vertical beam in a guiding manner, and an annealing head for annealing is fixedly arranged on the vertical guide seat; and the movement of the transverse guide seat, the longitudinal guide seat and the vertical guide seat is respectively driven by corresponding screw rod assemblies.

The discharging mechanism comprises a supporting frame II, the top end of the supporting frame II is rotatably provided with a rotating plate, the end parts of three radial extending plates of the rotating plate are respectively and fixedly provided with a vertical downward discharging cylinder, a piston rod extending end of the discharging cylinder is provided with a discharging seat, two ends of a bottom end surface of the discharging seat are respectively provided with a two-way clamping cylinder, two telescopic rod ends of the two-way clamping cylinder are respectively connected with a clamping jaw which is correspondingly arranged, and clamping end surfaces of the clamping jaws are respectively provided with clamping grooves for clamping welding rings.

Compared with the prior art, the invention has the beneficial effects that:

1. continuous automatic feeding of products

Through the rotation of the storage turnplate, the cyclic feeding of a plurality of storage stations is realized, meanwhile, before the equipment operates, welding rings are all stacked and placed on the storage stations in advance, after the welding ring on one sleeve is completely taken out, the storage turnplate rotates to take the welding ring on the sleeve of the next storage station, so that the feeding in the feeding and discharging process of a feeding and discharging mechanism is uninterrupted, the stacking and discharging of the sleeves on the storage stations after the feeding is finished are not influenced during the feeding, the automatic feeding is realized, and the feeding consistency is good;

2. before welding the product, confirming the welding position through CCD photographing, accurately determining the welding position, controlling the rear welding head to move to the corresponding position by the background, and simultaneously realizing high-quality welding of the welding ring end by welding laser;

3. realizes 100 percent inspection of the welded product weld width value,

4. realizing on-line annealing of welded products;

5. the realization equipment respectively loads the qualified welding ring and the unqualified welding ring into different material receiving boxes.

Drawings

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

FIG. 2 is a schematic view of a feed mechanism;

FIG. 3 is a schematic view of the sleeve and the jack-up sleeve;

FIG. 4 is a schematic structural view of a material taking and placing mechanism;

FIG. 5 is a schematic view of the structure of the take-off plate;

FIG. 6 is a schematic structural diagram of a fixture;

FIG. 7 is a schematic structural view of a welding assembly;

FIG. 8 is a schematic view of the structure of the cleaning mechanism;

FIG. 9 is a schematic structural view of an annealing mechanism;

FIG. 10 is a schematic view of the structure of the discharge mechanism;

fig. 11 is a schematic view of a partial structure at a in fig. 10.

Reference numerals:

1. a work table; 2. a turntable; 3. a feeding station; 4. a photographing and positioning station; 5. a laser welding station; 6. a photographing checking station; 7. an annealing station; 8. a material taking station; 9. fixing the tool; 10. a feeding mechanism; 11. a material taking and discharging mechanism; 12. a CCD assembly; 13. a support frame; 14. welding the assembly; 15. a supporting stand; 16. a guide rail; 17. a slide; 18. a cleaning mechanism; 19. a fixed bracket; 20. an annealing mechanism; 21. a qualified piece circulating conveyor belt; 22. a reject circulating conveyor belt; 23. a discharging mechanism;

10-1, a stock bedplate; 10-2, a material storage turntable; 10-3, grooves; 10-4, a sleeve; 10-5, jacking sleeve; 10-6, a material taking station; 10-7, lifting claws; 10-8, a clamping groove; 10-9, core rod; 10-10, annular boss; 10-11, a guide groove; 24. a photoelectric column; 25. a photoelectric sensor; 26. a mirror column; 27. a mirror plate; 28. an opening;

11-1, support columns; 11-2, a cross beam; 11-3, a guide sliding seat; 11-4, taking and discharging cylinders; 11-5, taking a discharging plate; 11-6, limiting blocks; 11-7, concave cavity; 11-8, magnet;

9-1, fixing the sleeve; 9-2, limiting bosses; 9-3, clamping grooves; 9-4, supporting blocks; 9-5, fixing blocks; 9-6, pressing claws; 9-7, wedge blocks; 9-8, lifting blocks;

14-1, a cross beam; 14-2, a transverse moving seat; 14-3, longitudinal beams; 14-4, longitudinally moving the seat; 14-5, vertical beams; 14-6, a vertical moving seat; 14-7, a laser welding head;

18-1, a polishing head; 18-2, a vertical plate; 18-3, a sliding seat; 18-4, fixing plates; 18-5, connecting plates;

20-1, transverse beams; 20-2, a transverse guide seat; 20-3, longitudinal beams; 20-4, a longitudinal guide seat; 20-5, vertical beams; 20-6, a vertical guide seat; 20-7, annealing head;

23-1, a second support frame; 23-2, rotating plate; 23-3, a discharging cylinder; 23-4, a discharge seat; 23-5, a bidirectional clamping cylinder; 23-6, clamping jaws; 23-7, a clamping groove.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

See fig. 1-11;

the utility model provides a welding ring automation welding system, is including workstation 1, its characterized in that: the rotary table 2 is rotatably arranged on the workbench 1, a bearing seat is arranged at the central position of the workbench 1, the rotary table 2 is fixedly arranged on the bearing seat, the rotation of the rotary table 2 is driven by a motor below, six stations are uniformly distributed on the workbench 1 outside the circumference of the rotary table 2, and a feeding station 3, a photographing positioning station 4, a laser welding station 5, a photographing checking station 6, an annealing station 7 and a material taking station 8 are sequentially arranged on the workbench 1, and six fixed tools 9 which are in one-to-one correspondence with the stations and used for clamping and releasing welding rings are arranged on the rotary table 2;

a feeding mechanism 10 for circularly and automatically feeding is arranged at the outer side of the workbench 1 corresponding to the feeding station 3, and a material taking and discharging mechanism 11 which moves back and forth is arranged between the feeding station and the feeding mechanism 10;

a stand column is arranged on the workbench 1 corresponding to the photographing and positioning station 4, and a CCD component 12 positioned right above the station fixing tool is arranged on the stand column through a fixing support;

a supporting frame 13 is arranged on a workbench corresponding to the laser welding station 5, and a welding assembly 14 with adjustable spatial positions in the transverse, longitudinal and vertical directions is arranged on the supporting frame 13;

A supporting vertical frame 15 is arranged on a workbench corresponding to the photographing checking station 6, a guide rail 16 facing the radial direction of the turntable 2 is erected on the supporting vertical frame 15, a sliding seat 17 is arranged on the guide rail 16, and a photographing mechanism and a cleaning mechanism 18 which are arranged at intervals in the front-back direction are arranged on the sliding seat 17;

the annealing station 7 comprises a fixed bracket 19, and an annealing mechanism 20 with adjustable spatial positions in the transverse, longitudinal and vertical directions is arranged on the fixed bracket 19;

two parallel material receiving circulating conveyor belts are arranged on the outer side of the workbench corresponding to the material taking station 8, namely a qualified piece circulating conveyor belt 21 and a unqualified piece circulating conveyor belt 22, and a discharging mechanism 23 is arranged between the qualified piece circulating conveyor belt 21 and the unqualified piece circulating conveyor belt 22.

Further, the feeding mechanism 10 comprises a storage platen 10-1, a storage turntable 10-2 is rotatably mounted on the storage platen 10-1, radially arranged grooves 10-3 are uniformly distributed at the circumferential edge of the storage turntable 10-2, the grooves 10-3 form a plurality of radially protruding storage stations at intervals on the storage turntable 10-2, sleeves 10-4 for sleeving welding rings are respectively arranged on the storage stations, lifting sleeves 10-5 capable of sliding up and down are sleeved on the sleeves 10-4, a material taking station 10-6 is arranged on the storage platen 10-1, the material taking station 10-6 is opposite to the material feeding station 3, a lifting mechanism capable of lifting the lifting sleeves 10-5 is arranged between the material taking station 10-6 and the material feeding station 3, the lifting mechanism comprises lifting claws 10-7, a concave cavity matched with the outer edge of one side of the lifting sleeve 10-5 is formed in one side of each lifting claw 10-7, gaps are reserved between the inner side surfaces of the concave cavities and the outer circle of the sleeves and the protruding edges of the storage turntable of the storage stations, and the lifting claws of the lifting sleeves are reserved, and a lifting assembly of one side of the lifting claws 10-7 is driven by a screw rod driving assembly.

In the above structure: a motor for driving the storage turntable to rotate is arranged on a storage platen at the bottom end of the storage turntable, the motor rotates to drive the storage turntable to rotate, the cyclic feeding of a plurality of storage stations is switched, welding rings are all overlapped and placed on the storage stations in advance before the equipment operates, a lifting mechanism drives a lifting sleeve of a material taking station to lift, so that the lifting of a product is driven, the uppermost welding ring is ensured to be positioned at the same material taking station, and the material taking and discharging mechanism is convenient to take and discharge materials from the same position; through the structure of the cavity of lifting claw, through the setting of cavity specification, can guarantee to lift the claw when reciprocating, cavity and sleeve contactless, lift the laminating of the lower terminal surface of board and jacking cover, it will progressively lift the cover to drive the lifting claw from the bottom surface through the lead screw lifting assembly, after the product on the jacking cover is whole taken out, the lead screw lifting assembly drives the lifting claw and descends, thereby make the jacking cover reset, can carry out the nest of materials next time, the lifting claw that lifts this moment continues to descend, descend to the below of storage carousel, the rotatable next storage station of storage carousel this moment, carry out the feed.

Further, a clamping groove 10-8 which is vertically arranged is arranged on the outer side wall of the sleeve 10-4, a core rod 10-9 which is convenient for positioning two ends of the welding ring is clamped in the clamping groove 10-8, and the section of the core rod 10-9 is T-shaped; the upper end surface of the jacking sleeve 10-5 is a step surface, an annular boss 10-10 for pushing the welding ring is arranged on the inner side of the jacking sleeve, a guide groove 10-11 is formed in the inner side wall of the jacking sleeve 10-5, and the guide groove 10-11 is in guide fit with the core rod 10-9; the structure is as follows: through the structure of the core rod, when the welding rings are clamped and placed in a superposition manner, two ends of the welding rings are respectively positioned at two sides of the core rod, and limiting and guiding are carried out through the core rod; the annular boss is used for supporting the welding ring on one hand, and on the other hand, the size of the bottom end face of the jacking sleeve is guaranteed, so that the lifting claw can smoothly lift up and down and can fall below the storage turntable, and the switching of the storage stations is not affected; and the guide groove and the core rod structure realize the guiding performance of the jacking sleeve and the sleeve.

A side frame of the lifting mechanism is provided with a vertically arranged photoelectric stand column 24, a photoelectric sensor 25 for detecting whether materials exist on the sleeve 10-4 or not is arranged on the photoelectric stand column 24, a reflector stand column 26 is correspondingly arranged on a stock bedplate at the inner side of the sleeve 10-4 respectively, a reflector fixing plate 27 is fixedly arranged at the upper end and the lower end of the reflector stand column 26 respectively through optical axis fixing codes, openings 28 corresponding to the positions of the reflector fixing plates 27 are respectively arranged at the mouth part of the sleeve 10-4 and the lower end part of the sleeve 10-4, and the openings 28 are used for sensing the positions and the existence of the materials through light rays emitted by the photoelectric sensor and switching automatic feeding of the storage turntable. The photoelectric sensor senses the position of the upper end and the lower end of the sleeve on the material storage station, the real-time detection is carried out on the product on the sleeve of the material taking station, the position and the existence of the sensing material are guaranteed, the timely switching of the material storage station is ensured, and after the switching is carried out, the photoelectric sensor sends a signal to the material taking and discharging mechanism, so that the material taking and discharging operation is carried out, and the action of the lifting mechanism in the whole continuous feeding process is carried out.

Further, the material taking and placing mechanism 11 comprises a supporting column 11-1, a cross beam 11-2 which faces the material loading station is erected on the supporting column 11-1, a guide sliding seat 11-3 is installed on one side of the cross beam 11-2 in a guiding manner, the guide sliding seat 11-3 is driven by a screw rod assembly, a lifting material taking and placing cylinder 11-4 is arranged on the guide sliding seat 11-3, a material taking and placing plate 11-5 is installed at the extending end of a piston rod of the material taking and placing cylinder 11-4, a plurality of limiting blocks 11-6 which are arranged at intervals and are correspondingly matched with the outer circle position of a welding ring are installed on the bottom surface of the material taking and placing plate 11-5, step surfaces which are used for limiting the upper end surface and the inner side surface of the welding ring are arranged on the bottom end surface of the limiting block 11-6, a concave cavity 11-7 is formed in the middle of the limiting block 11-6, a magnet 11-8 is fixedly clamped in the concave cavity 11-7, and a magnet 11-8 which is used for assisting in taking and placing is installed on the circumference position staggered with the limiting block 11-6.

The screw rod assembly comprises a screw rod which is arranged in parallel with the cross beam, a guide rail which slides in a guiding way with the guiding sliding seat is arranged on the cross beam, and the motor drives the screw rod to rotate so as to drive the guiding sliding seat to move along the guide rail in a guiding way, thereby realizing the reciprocating movement of the guiding sliding seat on the cross beam; when the material is taken, the material taking and discharging cylinder is driven to move to descend, the material taking and discharging of the product is completed through the adsorption force of the magnet of the material taking and discharging plate after the material taking and discharging cylinder is lowered to the material taking position, the guide limiting of the inner side of the product is realized through the structure of the limiting block in the process, the adsorption position of the product and the stability in the adsorption process are ensured, the material taking and discharging cylinder is driven to move to reset, and at the moment, the screw rod assembly drives the guide sliding seat to move to the material feeding station; during discharging, the feeding cylinder acts to drive the feeding cylinder to drop down to the position of the feeding station.

Further, the fixing tool 9 comprises a fixing sleeve 9-1, a limiting boss 9-2 for clamping and placing a welding ring is arranged on the inner side of the upper end face of the fixing sleeve 9-1, radially arranged grooves are uniformly distributed on the limiting boss 9-2, clamping grooves 9-3 corresponding to the grooves are respectively arranged on the outer side of the upper end face of the fixing sleeve 9-1, supporting blocks 9-4 for supporting the edge of the welding ring are clamped in the clamping grooves 9-3, and a pressing claw assembly capable of synchronously overturning is arranged on the inner side of the fixing sleeve 9-1 corresponding to the grooves;

The pressing claw assembly comprises a fixed block 9-5 arranged on the inner side of a fixed sleeve 9-1, the fixed block 9-5 is hinged with a pressing claw 9-6, wedge-shaped blocks 9-7 used for guiding and limiting the outer edge of a product are respectively arranged on the bottom end face of the front end part of the pressing claw 9-6, the bottom ends of the pressing claws 9-6 are respectively hinged on a lifting block 9-8 through a hinge shaft, the lifting blocks 9-8 are arranged in the fixed sleeve 9-1, and lifting of the lifting blocks 9-8 is driven by a cylinder at the bottom ends.

In the above structure: through the up end of fixed cover formation product place the terminal surface, through the structural design of draw-in groove and supporting shoe, can change the supporting shoe according to the specification requirement of product, make it satisfy the interval support of product circumferencial direction's camber to the product, realize spacing to the interior round surface of product through spacing boss, get the blowing mechanism and get the product and put the fixed position of the fixed frock top of material loading station through magnet, act through pressing claw subassembly, press the product to fixed sheathe in, can accomplish the pressure equipment of fixed frock to the product.

In the process, the outer edge of the ring link can be tightened inwards through the wedge-shaped block structure at the front end part of the pressing claw, the two ends of the welding ring are tightly attached together, the gap value of the welding seam at the port of the welding ring is reduced, and then the welding ring is pressed and fixed through the pressing claw component; when the pressing claw assembly specifically acts, a piston rod of the air cylinder contracts to drive the lifting block to move downwards, so that each pressing claw is driven to overturn, and the products are pressed and positioned; when the fixed tool rotates to the blanking station, a piston rod of the cylinder extends out to drive the lifting block to move downwards, so that each pressing claw is driven to overturn, release of a product is realized, and the requirement of discharging is met.

Further, the welding assembly 14 comprises a cross beam 14-1 erected on the support frame 13, a transverse moving seat 14-2 is arranged on the cross beam 14-1 in a guiding manner, a longitudinal beam 14-3 is arranged on the transverse moving seat 14-2, a longitudinal moving seat 14-4 is arranged on the longitudinal beam 14-3 in a guiding manner, a vertical beam 14-5 is arranged on one side of the longitudinal moving seat 14-4, a vertical moving seat 14-6 is arranged on the vertical beam 14-5 in a guiding manner, and a laser welding head 14-7 for welding is fixedly arranged on the vertical moving seat 14-6; the movement of the lateral movement seat 14-2, the longitudinal movement seat 14-4 and the vertical movement seat 14-6 are driven by corresponding screw assemblies, respectively. The screw rod assembly is used for respectively and independently driving the transverse moving seat, the longitudinal moving seat and the vertical moving seat to move on the cross beam, the longitudinal beam and the vertical beam, so that the space position of the laser welding head is adjusted, and the requirements of moving and corresponding positions during welding are met.

Further, the cleaning mechanism 18 includes a polishing head 18-1, the polishing head 18-1 is rotatably mounted on a vertical plate 18-2 through a rotating shaft, the vertical plate 18-2 is fixedly mounted on a fixed plate 18-4 on one side of the slide 18-3, and the rotation of the polishing head 18-1 is driven by a motor above; the photographing mechanism is positioned right in front of the cleaning mechanism 18 and comprises a connecting plate 18-5 connected and fixed with the fixing plate 18-4, and a CCD assembly is fixedly arranged on the connecting plate 18-5. Through the structure setting of cleaning mechanism, when the carousel rotates to the detection station of shooing, at first move on the fixed plate through motor drive slide to drive the polishing head and reach the position of welding seam, polish the welding seam position, carry out polishing treatment to the welding seam department after the welding, thereby more be favorable to the effect of annealing, detect the welding seam position after polishing through CCD subassembly shooting, feedback the relevant information of the welding seam after shooing to the backstage and remain, through backstage analysis processing, carry out analysis contrast to the backstage data of welding seam, detect whether the welding seam is qualified.

Further, the annealing mechanism 20 comprises a transverse beam 20-1 erected on the fixed support 19, a transverse guide seat 20-2 is arranged on the transverse beam 20-1 in a guiding way, a longitudinal beam 20-3 is arranged on the transverse guide seat 20-2, a longitudinal guide seat 20-4 is arranged on the longitudinal beam 20-3 in a guiding way, a vertical beam 20-5 is arranged on one side of the longitudinal guide seat 20-4, a vertical guide seat 20-6 is arranged on the vertical beam 20-5 in a guiding way, and an annealing head 20-7 for annealing is fixedly arranged on the vertical guide seat 20-6; the movement of the horizontal guide holder 20-2, the vertical guide holder 20-4 and the vertical guide holder 20-6 are driven by corresponding screw rod assemblies, respectively. The screw rod assembly is used for respectively and independently driving the transverse guide seat, the longitudinal guide seat and the vertical guide seat to move on the transverse beam, the longitudinal beam and the vertical beam, so that the space position of the annealing head is adjusted, and the requirements of movement and position correspondence during welding are met.

Further, the unloading mechanism 23 comprises a second supporting frame 23-1, a rotating plate 23-2 is rotatably arranged at the top end of the second supporting frame 23-1, vertical downward unloading air cylinders 23-3 are fixedly arranged at the end parts of three radial extending plates of the rotating plate 23-2 respectively, an unloading seat 23-4 is arranged at the extending end of a piston rod of each unloading air cylinder 23-3, two ends of the bottom end surface of each unloading seat 23-4 are respectively provided with a two-way clamping air cylinder 23-5, two telescopic rod ends of each two-way clamping air cylinder 23-5 are respectively connected with a clamping jaw 23-6 which is correspondingly arranged, and clamping grooves 23-7 for clamping welding rings are respectively arranged on the clamping end surfaces of the clamping jaws 23-6. The motor drives the rotating plate to rotate, thereby rotating a certain angle, the clamping jaw is enabled to take materials and discharge materials continuously, production and processing are accelerated, when the discharging mechanism takes materials, the discharging cylinder piston rod stretches out, the clamping jaw is driven by the discharging seat to move to the discharging station fixing tool, then the clamping jaw is driven by the bidirectional clamping cylinder to move relatively to clamp the welding ring, the discharging cylinder is reset, the motor drives the rotating plate to rotate above the corresponding circulating conveyor belt according to whether the clamped welding ring is a qualified piece or a disqualified piece, then the discharging cylinder piston rod stretches out, the product is moved downwards, and the bidirectional clamping cylinder drives the clamping jaw to move in opposite directions to loosen the welding ring, so that the discharging can be completed.

Further, the welding direction of the automatic welding system for the welding ring comprises the following specific welding steps:

s1 preparation procedure

Before the equipment operates, sleeving the welding ring to be welded on a sleeve of the feeding mechanism according to a certain rule, and sequentially superposing and placing;

setting welding power and welding speed of a welding head on a laser welding station;

setting the width range of a welding line on a photographing checking station;

setting the annealing temperature and the annealing time in an annealing station;

s2 taking and discharging materials

The welding ring at the uppermost part of the sleeve is taken through the taking and placing mechanism, the taking and placing mechanism moves to the position right above a taking and placing station of the feeding mechanism, a taking and placing plate is driven to move through a taking and placing cylinder to perform taking operation, the welding ring is limited in the taking process through a limiting block, the welding ring is matched with the suction force of a magnet to take the material, the welding ring moves to the position right above a feeding station after taking the material, then the welding ring is moved to a fixed fixture corresponding to the feeding station through the taking and placing cylinder to descend, and then the welding ring is clamped and fixed on a fixed sleeve on the fixed fixture through a synchronous overturning pressing claw assembly on the fixed fixture;

the welding ring on the material taking station is driven by the screw rod lifting assembly to lift the lifting sleeve, and the welding ring is moved to the uppermost side, so that the material taking and placing mechanism takes the welding ring from the same position;

S3 photographing and positioning

The clamped fixed tool is driven to rotate to a photographing positioning station through rotation of the turntable, the position of the welding girth weld is photographed through a CCD assembly on the photographing positioning station, and the position information is transmitted to the background and is reserved;

the shooting detection is carried out, and meanwhile, the taking and placing mechanism above the feeding mechanism repeats the process of the step S2 to take and place the second welding ring;

s4 laser welding

Rotating the welding ring which is detected in the step S3 to a laser welding station through rotation of a turntable, analyzing and processing specific data of the position of a welding line through a background, adjusting the position of a laser welding head transversely, longitudinally and vertically, ensuring that the position of the laser welding head corresponds to the position of the welding line, welding the welding line through the laser welding head, and protecting welding by argon in the welding process;

s3 and S2 are synchronously operated while laser welding, photographing and positioning are carried out on a second welding ring, and a third welding ring is subjected to material taking and discharging processes;

s5, photographing to check welding degree

Rotating the welded welding ring in the step S4 to a photographing checking station through rotation of a turntable, cleaning each welding line through a photographing mechanism and a cleaning mechanism, performing photographing checking after cleaning, feeding back the related information of the photographed welding line to a background and keeping the related information, analyzing and comparing the background data of the welding line through background analysis, and detecting whether the welding line is qualified or not;

S4, S3 and S2 are synchronously operated while photographing and detecting, welding is carried out on the welding seam of the second welding ring, photographing and positioning are carried out on the third welding ring, and the fourth welding ring carries out the processes of taking and discharging;

s6 annealing

Rotating the welding ring after the welding line detection in the step S5 to an annealing station through rotating the turntable, and adjusting the position of the laser welding head through the transverse direction, the longitudinal direction and the vertical direction after the welding ring reaches the annealing station if the welding line detected in the step S5 is qualified, so as to ensure that the position of the annealing head corresponds to the position of the welding line, annealing the welding line, and protecting argon in the annealing process;

if the welding line in the step S5 is unqualified, the annealing mechanism does not work after the welding ring reaches the annealing station;

and (3) synchronously operating the steps S5, S4, S3 and S2 while annealing, photographing the second welding ring to check the welding degree, welding the welding seam of the third welding ring, photographing and positioning the fourth welding ring, and taking and discharging the fifth welding ring;

s7 discharging

Rotating the welding ring in the step S6 to a material taking station through rotation of a turntable, placing the qualified product annealed in the step S6 on a qualified piece circulating conveyor belt through a material discharging mechanism, and conveying the qualified piece to a qualified piece product box through conveying of the qualified piece circulating conveyor belt; placing the unqualified annealed product detected in the step S5 on a disqualified piece circulating conveyor belt; conveying unqualified products to a unqualified product box through a unqualified product circulating conveying belt;

Simultaneously unloading, synchronously operating the steps S6, S5, S4, S3 and S2, carrying out annealing operation on the second welding ring, carrying out photographing and welding degree checking on the three welding rings, welding the welding seam of the fourth welding ring, carrying out photographing and positioning on the fifth welding ring, and carrying out the processes of taking and discharging on the sixth welding ring; and continuing continuous operation until the welding ring sleeved on the sleeve on the feeding station is completely taken out, rotating the welding ring to the next storage station through the storage turntable, sequentially taking the stacked welding ring, clamping the feeding station to a fixed tool, sequentially passing through a photographing positioning station, a laser welding station, a photographing checking station, an annealing station and a taking station, conveying the welded product to a qualified product box or a unqualified product box, and performing cyclic operation.

Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.

Therefore, the above description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. An automatic welding system for a welding ring comprises a workbench (1), and is characterized in that: the rotary table is characterized in that a rotary table (2) is rotatably arranged on the workbench (1), a bearing seat is arranged at the central position of the workbench (1), the rotary table (2) is fixedly arranged on the bearing seat, the rotary table (2) is driven by a motor below, a plurality of stations are uniformly distributed on the workbench (1) on the outer side of the circumference of the rotary table (2), a feeding station (3), a photographing positioning station (4), a laser welding station (5), a photographing checking station (6), an annealing station (7) and a material taking station (8) are sequentially arranged, and a plurality of fixed tools (9) which are in one-to-one correspondence with the stations and used for clamping welding rings are arranged on the rotary table (2);

a feeding mechanism (10) for circularly and automatically feeding is arranged at the outer side of the workbench (1) corresponding to the feeding station (3), and a reciprocating material taking and discharging mechanism (11) is arranged between the feeding station and the feeding mechanism (10);

the photographing and positioning device is characterized in that a stand column is arranged on a workbench (1) corresponding to the photographing and positioning station (4), and a CCD assembly (12) positioned right above the station fixing tool is arranged on the stand column through a fixing support;

A supporting frame (13) is arranged on a workbench corresponding to the laser welding station (5), and a welding assembly (14) with adjustable spatial positions in the transverse, longitudinal and vertical directions is arranged on the supporting frame (13);

a supporting vertical frame (15) is arranged on a workbench corresponding to the photographing inspection station (6), a guide rail (16) facing the radial direction of the turntable (2) is erected on the supporting vertical frame (15), a sliding seat (17) is arranged on the guide rail (16), and a photographing mechanism and a cleaning mechanism (18) which are arranged at intervals are arranged on the sliding seat (17);

the annealing station (7) comprises a fixed bracket (19), and an annealing mechanism (20) with adjustable spatial positions in the transverse, longitudinal and vertical directions is arranged on the fixed bracket (19);

two material receiving circulating conveyor belts which are arranged in parallel are arranged on the outer side of a workbench corresponding to the material taking station (8), the material receiving circulating conveyor belts are respectively a qualified piece circulating conveyor belt (21) and a unqualified piece circulating conveyor belt (22), and a discharging mechanism (23) is arranged between the qualified piece circulating conveyor belt (21) and the unqualified piece circulating conveyor belt (22).

2. The weld ring automated welding system of claim 1, wherein: the feeding mechanism (10) comprises a storage platen (10-1), a storage turntable (10-2) is rotatably arranged on the storage platen (10-1), radial grooves (10-3) are uniformly distributed at the circumferential edge of the storage turntable (10-2), the grooves (10-3) form a plurality of radially protruding storage stations at intervals with the storage turntable (10-2), sleeves (10-4) for sleeving welding rings are respectively arranged on the storage stations, lifting sleeves (10-5) capable of sliding up and down are sleeved on the sleeves (10-4), a material taking station (10-6) is arranged on the storage platen (10-1), lifting mechanisms for lifting the lifting sleeves (10-5) are arranged between the material taking station (10-6) and the feeding station (3), lifting claws (10-7) are arranged on one side of each lifting claw (10-7) and provided with a lifting assembly with a clearance between the lifting sleeve and the lifting edge of the lifting sleeve (10-5), and the lifting assembly is arranged on one side of each lifting claw (10-7) and the outer side of the lifting sleeve.

3. The weld ring automated welding system of claim 2, wherein: a clamping groove (10-8) which is vertically arranged is formed in the outer side wall of the sleeve (10-4), a core rod (10-9) which is convenient for positioning two ends of the welding ring is clamped in the clamping groove (10-8), and the cross section of the core rod (10-9) is T-shaped; the upper end face of the jacking sleeve (10-5) is a step face, an annular boss (10-10) for pushing the welding ring is arranged on the inner side of the jacking sleeve, a guide groove (10-11) is formed in the inner side wall of the jacking sleeve (10-5), and the guide groove (10-11) is in guide fit with the core rod (10-9);

the automatic feeding device is characterized in that a vertically arranged photoelectric stand column (24) is erected on one side of the lifting mechanism, a photoelectric sensor (25) used for detecting whether materials exist on the sleeve (10-4) or not is installed on the photoelectric stand column (24), a reflective mirror stand column (26) is correspondingly arranged on a stock bedplate on the inner side of the sleeve (10-4) respectively, reflective mirror fixing plates (27) are fixedly installed at the upper end and the lower end of the reflective mirror stand column (26) through optical axis fixing codes respectively, openings (28) corresponding to the positions of the reflective mirror fixing plates (27) are formed in the opening of the sleeve (10-4) and the lower end of the sleeve (10-4) respectively, and the openings (28) are used for transmitting light rays sent by the photoelectric sensor to sense the positions and the existence of the materials and switch the automatic feeding of the storage turntable.

4. The weld ring automated welding system of claim 1, wherein: get blowing mechanism (11) including support column (11-1), erect crossbeam (11-2) towards the material loading station on support column (11-1), guide slide holder (11-3) are installed in one side direction of crossbeam (11-2), the removal of guide slide holder (11-3) is through lead screw subassembly drive, get blowing cylinder (11-4) of liftable on guide slide holder (11-3), get the piston rod of blowing cylinder (11-4) and stretch out the end and install get blowing board (11-5), get the bottom face of blowing board (11-5) install a plurality of intervals setting and weld ring excircle position corresponding complex stopper (11-6), the bottom face of stopper (11-6) is the step face that is used for spacing weld ring up end and medial surface, the middle part of stopper (11-6) is equipped with cavity (11-7), the inside callipers of cavity (11-7) are fixed with magnet (11-8), get and install on the circumference that can stagger with on the bottom face (11-5) of blowing board (11-8) and the supplementary position of getting on can also installing on the circumference (11-8).

5. The weld ring automated welding system of claim 1, wherein: the fixing tool (9) comprises a fixing sleeve (9-1), a limiting boss (9-2) for clamping a welding ring is arranged on the inner side of the upper end face of the fixing sleeve (9-1), radial grooves are uniformly distributed on the limiting boss (9-2), clamping grooves (9-3) corresponding to the grooves are respectively formed in the outer side of the upper end face of the fixing sleeve (9-1) corresponding to the grooves, supporting blocks (9-4) for supporting the edge of the welding ring are clamped in the clamping grooves (9-3), and a pressing claw assembly capable of synchronously overturning is arranged on the inner side of the fixing sleeve (9-1) corresponding to the grooves;

The pressing claw assembly comprises a fixed block (9-5) arranged on the inner side of a fixed sleeve (9-1), the fixed block (9-5) is hinged with a pressing claw (9-6), wedge-shaped blocks (9-7) used for guiding and limiting the outer edge of a product are respectively arranged on the bottom end face of the front end part of the pressing claw (9-6), the bottom ends of the pressing claws (9-6) are respectively hinged to a lifting block (9-8) through a hinge shaft, the lifting blocks (9-8) are arranged in the fixed sleeve (9-1), and lifting of the lifting blocks (9-8) is driven by a cylinder at the bottom ends.

6. The weld ring automated welding system of claim 1, wherein: the welding assembly (14) comprises a cross beam (14-1) erected on a supporting frame (13), a transverse moving seat (14-2) is arranged on the cross beam (14-1) in a guiding manner, a longitudinal beam (14-3) is arranged on the transverse moving seat (14-2), a longitudinal moving seat (14-4) is arranged on the longitudinal beam (14-3) in a guiding manner, a vertical beam (14-5) is arranged on one side of the longitudinal moving seat (14-4), a vertical moving seat (14-6) is arranged on the vertical beam (14-5) in a guiding manner, and a laser welding head (14-7) for welding is fixedly arranged on the vertical moving seat (14-6); the movement of the transverse moving seat (14-2), the longitudinal moving seat (14-4) and the vertical moving seat (14-6) is respectively driven by corresponding screw rod assemblies.

7. The weld ring automated welding system of claim 1, wherein: the cleaning mechanism (18) comprises a polishing head (18-1), the polishing head (18-1) is rotatably arranged on a vertical plate (18-2) through a rotating shaft, the vertical plate (18-2) is fixedly arranged on a fixed plate (18-4) on one side of a sliding seat (18-3), and the rotation of the polishing head (18-1) is driven by a motor above; the photographing mechanism is located right in front of the cleaning mechanism (18), and comprises a connecting plate (18-5) fixedly connected with the fixing plate (18-4), and a CCD assembly is fixedly installed on the connecting plate (18-5).

8. The weld ring automated welding system of claim 1, wherein: the annealing mechanism (20) comprises a transverse beam (20-1) erected on a fixed support (19), a transverse guide seat (20-2) is arranged on the transverse beam (20-1) in a guiding manner, a longitudinal beam (20-3) is arranged on the transverse guide seat (20-2), a longitudinal guide seat (20-4) is arranged on the longitudinal beam (20-3) in a guiding manner, a vertical beam (20-5) is arranged on one side of the longitudinal guide seat (20-4), a vertical guide seat (20-6) is arranged on the vertical beam (20-5) in a guiding manner, and an annealing head (20-7) for annealing is fixedly arranged on the vertical guide seat (20-6); the movement of the horizontal guide seat (20-2), the longitudinal guide seat (20-4) and the vertical guide seat (20-6) is driven by corresponding screw rod assemblies respectively.

9. The weld ring automated welding system of claim 1, wherein: the unloading mechanism (23) comprises a second supporting frame (23-1), a rotating plate (23-2) is rotatably arranged at the top end of the second supporting frame (23-1), vertical downward unloading air cylinders (23-3) are fixedly arranged at the end parts of three radial extending plates of the rotating plate (23-2), an unloading seat (23-4) is arranged at the extending end of a piston rod of each unloading air cylinder (23-3), two ends of the bottom end surface of each unloading seat (23-4) are respectively provided with a two-way clamping air cylinder (23-5), two telescopic rod ends of each two-way clamping air cylinder (23-5) are respectively connected with a clamping jaw (23-6) which is correspondingly arranged, and clamping grooves (23-7) for clamping welding rings are respectively arranged on clamping end surfaces of the clamping jaws (23-6).

10. Welding direction based on the welding ring automated welding system according to any of the claims 1-9, characterized by the specific welding steps as follows: