CN109262189B

CN109262189B - Multi-station full-automatic welding equipment for fan impeller machining

Info

Publication number: CN109262189B
Application number: CN201811406977.8A
Authority: CN
Inventors: 胡国强; 杨凤莲; 袁光钟; 魏考平
Original assignee: Foshan Googol Automation Technology Co ltd
Current assignee: Foshan Googol Automation Technology Co ltd
Priority date: 2018-11-23
Filing date: 2018-11-23
Publication date: 2024-05-14
Anticipated expiration: 2038-11-23
Also published as: CN109262189A

Abstract

The invention provides a multi-station full-automatic welding device for processing a fan impeller, which comprises: the fan impeller comprises a chassis positioning mechanism, a main frame mechanism, a blade and chassis assembling and positioning mechanism located at a second processing station, a first welding mechanism used for welding the blade and the chassis on the second processing station, a top cover feeding mechanism located at a third processing station, a second welding mechanism used for spot welding the top cover and the blade on the third processing station, a turnover mechanism located at a fifth processing station, a third welding mechanism used for performing full welding on the turnover top cover and the blade welding semi-finished product on the fifth processing station, and a discharging mechanism used for obtaining a fan impeller finished product. The chassis positioning mechanisms are connected with the main frame mechanism. According to the invention, full-automatic welding of the fan impeller can be realized according to production requirements, so that the traditional manual welding process is replaced, and the welding efficiency, welding quality and welding precision are improved.

Description

Multi-station full-automatic welding equipment for fan impeller machining

Technical Field

The invention relates to the technical field of industrial welding, in particular to multi-station full-automatic welding equipment for processing a fan impeller.

Background

With the acceleration of industrialization pace of the emerging economy, the town of the developing world is suddenly moved forward, and rotary mechanical equipment represented by fans is widely focused on industries such as cement, power, energy, chemical industry, aviation, metallurgy and the like. Therefore, research on fan impellers is also important in the fan industry, and the quality of the fan impellers directly influences the normal operation and safety of the fan.

The fan impeller is a bladed wheel disc comprising a chassis, blades and a top cover. The chassis and the top cover are arranged in parallel, the number of the blades is a plurality, the blades are uniformly distributed between the chassis and the top cover, and two sides of the blades are respectively and fixedly connected to the chassis and the top cover. In order to ensure the connection stability between the blades and the chassis and the top cover, the blades are usually welded on the chassis and the top cover, so that the stability of the fan impeller in use is ensured.

In the prior art, when producing fan impellers, welding is generally performed in an artificial mode: the blade is welded on the chassis, and after the welding is finished, the top cover is welded on the blade, so that the welding of the chassis and the top cover can be finished. However, in actual operation, because no positioning device exists, the positioning and the operation are only carried out by naked eyes, the fact that a plurality of blades are welded on the chassis at the same angle is difficult to ensure, and moreover, the top cover is difficult to put to an accurate position. If the top cover or the chassis cannot be guaranteed to be welded coaxially, the positioning of a plurality of blades on the chassis is inconsistent, so that the installation, the using effect and the working performance of the fan impeller in the later stage can be influenced. In addition, the manual operation mode can greatly increase labor intensity and labor difficulty, and the welding quality is completely determined by experience of operators, so that the welding efficiency and the welding quality are low.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings in the prior art, and provides a multi-station full-automatic welding device for processing.

In order to achieve the above purpose, the invention is realized by the following technical scheme: a full-automatic welding equipment of multistation of fan impeller processing, its characterized in that: six processing stations for respectively processing the fan impeller are arranged; comprising the following steps:

a chassis positioning mechanism for positioning the chassis at each processing station;

The main frame mechanism is used for driving the chassis positioning mechanism to rotate and alternate at six processing stations and providing a total power supply and signals for each station;

The positioning mechanism is used for pressing and holding the chassis on the chassis positioning mechanism, pushing and correcting the blades positioned on the chassis, and assembling the blades and the chassis on the chassis; the blade and chassis assembling and positioning mechanism is positioned at a second processing station;

The first welding mechanism is used for welding the blade on the second processing station with the chassis;

the top cover feeding mechanism is used for adjusting the levelness of the top cover and transmitting the levelness to an assembled semi-finished product of the blade and the chassis; the top cover feeding mechanism is positioned at a third processing station;

The second welding mechanism is used for carrying out spot welding on the top cover and the blade on the third processing station;

The overturning mechanism is used for overturning the welded semi-finished product of the top cover and the blade after spot welding; the turnover mechanism is positioned at a fifth processing station;

The third welding mechanism is used for performing full welding on the overturned top cover and the blade welding semi-finished product on the fifth processing station to obtain a fan impeller finished product;

The discharging mechanism is used for discharging the finished product of the fan impeller; the discharging mechanism is arranged at a sixth processing station;

The chassis positioning mechanisms are connected with the main frame mechanism; the first welding mechanism is positioned at one side of the blade and chassis assembling and positioning mechanism; the second welding mechanism is positioned at one side of the top cover feeding mechanism; the third welding mechanism is positioned at one side of the turnover mechanism.

In the scheme, the chassis positioning mechanism is driven to rotate and alternate at six processing stations to finish positioning of the chassis, positioning and welding of the blades and the chassis, feeding of the top cover, spot welding of the top cover and the blades, full welding of the top cover and the blades and forming and discharging of the fan impeller. Therefore, the invention carries out full-automatic welding on the fan impeller, thereby replacing the traditional manual welding process, improving the welding efficiency, welding quality and welding precision, and solving the problems of low automation degree and low production efficiency in the current fan welding machinery industry. And the fourth station may be a motorized station, which may be used for manual inspection of the semifinished product turned from the third station, etc.

The main frame mechanism comprises a frame, a transmission shaft, a turntable, a rotary joint, a fixed rod and a total driving device, wherein the transmission shaft, the turntable, the rotary joint, the fixed rod and the total driving device are arranged on the frame; the turntable is connected with the transmission shaft and the chassis positioning mechanism, and the bottom end of the transmission shaft is connected with the main driving device to realize that the chassis positioning mechanism on the turntable is driven to rotate alternately at six processing stations;

the rotary joint comprises an outer rotating shaft, an inner fixed shaft and a rotary conducting ring, wherein the inner fixed shaft and the rotary conducting ring are arranged in the outer rotating shaft through bearings, and the inner fixed shaft is connected with the fixed rod; the outer rotating shaft is respectively connected with the transmission shaft and the rotating conductive ring, so that the transmission shaft drives the rotating conductive ring to rotate. The transmission shaft is provided with the rotary conducting ring, so that an electrifying mode and a signal transmission mode of six stations can be provided, and the problem of wire winding of electric wires and control wires in the station rotation process can be avoided.

The chassis positioning mechanism comprises a first supporting plate for supporting the chassis, a positioning device for positioning the chassis placed on the first supporting plate and a rotating device for driving the first supporting plate and the positioning device to rotate; the positioning device comprises a plurality of clamping jaws, a liftable clamp shaft and a clamp sleeve, wherein the clamping jaws are used for supporting an inner hole of the bottom of the chassis to clamp the chassis; the rotating device comprises a clamp shaft sleeve and a first driving part used for driving the clamp shaft sleeve to rotate;

The clamping claws are uniformly distributed on the clamping shaft and are connected with the clamping shaft; the clamp sleeve is sleeved on the clamp shaft and matched and attached with the clamping jaw, and the clamping jaw can be driven to extend outwards or retract towards the clamp shaft and move along the outer wall of the clamp sleeve when the clamp shaft is lifted, so that the chassis is supported, positioned and separated;

The clamp shaft sleeve is connected with the clamp sleeve and sleeved on the clamp shaft; the first support plate is connected with the clamp shaft sleeve, the first driving part is connected with the clamp shaft sleeve, and the clamp shaft sleeve is driven to rotate so as to drive the first support plate, the clamp sleeve and the clamp shaft to synchronously rotate.

The clamping device can drive the clamping jaw to stretch outwards when the clamping device shaft descends, so that the chassis on which the supporting plate is placed is supported, clamped and positioned, and meanwhile, the clamping jaws can play a role in centering the chassis, so that the accuracy, quality and efficiency of welding of the follow-up blade and the chassis are greatly improved. The clamping jaw can be driven to retract towards the clamping sleeve and move along the outer wall of the clamping sleeve when the clamping shaft ascends, so that the chassis is separated. Meanwhile, the first supporting plate, the clamp sleeve and the clamp shaft synchronously rotate, so that not only can transposition welding of each blade on the chassis be realized, but also the consistency of actions can be ensured, and when the chassis rotates, the clamp shaft and the clamping jaw also rotate together, so that the chassis is always clamped and positioned.

The positioning device further comprises a second driving part for driving the clamp shaft to lift; one end of the clamp shaft is connected with the second driving part, the other end of the clamp shaft extends out of the first supporting plate and is connected with a plurality of clamping jaws, and the clamping jaws are positioned at the middle hole of the first supporting plate;

the fixture shaft comprises a shaft body and an outer shaft connected with the shaft body; one end of the shaft body penetrates through the outer shaft, and a plurality of clamping claws are arranged on the outer shaft; the other end is connected with the second driving part through a rotary joint, so that the second driving part drives the shaft body to lift so as to drive the clamping jaw to stretch outwards or retract towards the clamp shaft and move along the outer wall of the clamp sleeve, and the chassis is supported, positioned and separated. When the clamping jaws positioned at the middle hole of the supporting plate stretch outwards at the same time, the inner hole of the bottom of the chassis can be supported, and the centering effect is achieved.

The bottom of the clamp sleeve is inserted into the clamp sleeve, and track grooves with the same number as the clamping jaws are formed in the surface of the upper part of the clamp sleeve, so that the clamping jaws can be conveniently attached to the track grooves;

the clamp sleeve is of a structure with a large middle part and gradually reduced towards two ends, and two ends of the clamp sleeve are provided with conicity; the track groove is also provided with a taper;

The clamping jaw is of a structure with a large upper end and a small lower end, and the lower end is provided with a taper; the clamping jaw is matched and attached with the track groove;

The clamping claws are uniformly distributed on the clamping shaft and are connected with the clamping shaft, namely: the fixture shaft is provided with clamping grooves, and the clamping jaws are uniformly distributed on the fixture shaft and are tensioned in the clamping grooves of the fixture shaft through O-shaped springs.

The bottom of the clamp sleeve is provided with taper and is inserted into the clamp sleeve, so that the tightness and stability of connection between the clamp sleeve and the clamp sleeve can be improved. The clamping jaw and the track groove are centrally symmetrical, and the clamping jaw can be outwards stretched and move along the track groove of the clamp sleeve when the clamping jaw descends and moves, and the taper of the track groove can outwards push the clamping jaw to realize outwards stretching of the clamping jaw. The design is very ingenious and is simple to realize.

The blade and chassis assembly positioning mechanism includes:

The pressing and positioning device is used for pressing, holding and positioning the chassis and rotating the chassis, and correcting and positioning the blades on the chassis;

The pushing device is used for arranging and pushing the blades to the output station and pushing the blades of the output station to the pressing and positioning device piece by piece;

The pressing positioning device is positioned above the chassis positioning mechanism and comprises a fixed die for correcting and positioning the blade and a pressing part for pressing the fixed die onto the chassis; the fixed die is connected with the pressing part and is positioned above the chassis positioning mechanism, and the fixed die is uniformly provided with welding stations of the blades and the chassis, wherein the number of the welding stations is equal to that of the blades; the fixed die can synchronously rotate with the chassis positioning mechanism;

The blade pushing device comprises a blade feeding part for pushing the blade arrangement to the output station and a blade pushing part for pushing the blades of the output station to each welding station one by one; the output station is opposite each welding station.

After the chassis is pressed and held, the output station can be opposite to the welding stations in a rotating mode, so that the blades on the output station can be quickly pushed into each welding station one by one for positioning welding. The assembly positioning mechanism not only can improve the assembly welding efficiency of the blades and the chassis, but also can ensure the positioning consistency between each blade and the chassis, thereby improving the welding precision and quality of the blades and the chassis.

The pressing part comprises a die pressing cylinder, a cylinder frame body and a die connecting plate used for being connected with a fixed die; the die pressing cylinder is arranged on the cylinder frame body, extends out of the cylinder frame body and is connected with the die connecting plate, so that the die connecting plate is driven to descend to press a chassis on the chassis positioning mechanism through a fixed die;

The fixed die is rotatably connected with the die connecting plate through a bearing and a rotating shaft; the fixed die is uniformly provided with a plurality of unidirectional inclined fixed parts along the side edges of the fixed die; each fixing part is provided with a positioning template;

Each positioning template is provided with a first shaping strip and a second shaping strip which are matched with the upper edge of the blade; the first shaping strip is arranged at the upper part of the side wall of the positioning template; the shaping strip is located at one side of the positioning template and is connected with the positioning template to form an insertion space of the blade, and the insertion space of the blade is a welding station. The positioning template can ensure the positioning consistency of each blade on the chassis, and the shaping strip can not only shape the blade, but also realize the effect of pressing down the blade, so that the blade is positioned and connected with the chassis.

The sheet feeding part comprises a base body, a side plate arranged on the base body, a tensioning material plate I, a tensioning material plate II and a sheet feeding cylinder; the base body and the side plates enclose a space for blade arrangement; the sheet feeding cylinder is connected with the seat body and connected with the tensioning material plate; one side of the tensioning material plate II is connected with the tensioning material plate through an elastic piece, and the other side of the tensioning material plate II is connected with the arranged blades;

The end face of the base is provided with a bar for reducing friction force between the blade and the end face of the base when the blade is fed, and the bar is arranged on the end face of the base. The invention is provided with two bars, and the friction force in the pushing process of the blade is greatly reduced by changing the surface friction between the blade and the end surface of the seat body into two-point friction.

The top cap feeding mechanism includes:

The first discharging frame is used for superposing and placing the top cover and lifting the top cover to the material grabbing station;

a second discharging frame used for placing the top cover and serving as a feeding station;

the grabbing device is used for carrying out levelness adjustment on each top cover at the grabbing station and transmitting the levelness adjustment to the feeding station;

and the feeding device is used for conveying the top cover adjusted on the feeding station to an assembled semi-finished product of the blade and the chassis;

the first discharging frame and the second discharging frame are respectively positioned below the conveying direction of the grabbing device; the material grabbing station is positioned on the first material discharging frame; the feeding device is positioned above the second discharging frame and the assembled semi-finished product of the blade and the chassis;

the material grabbing device comprises a material pressing component for flattening a top cover through hole on a material grabbing station, a sucking unit for sucking the circular arc curved surface of the top cover and a material grabbing conveying cylinder for driving the material pressing component and the sucking unit to move to the material feeding station; the sucking units are connected with the material pressing component, and sucking points of the sucking units and the top cover are circumferentially distributed by taking the center of the top cover as a round point; the grabbing and conveying cylinder is connected with the pressing part;

The sucking unit comprises a rod body, a spring, a sleeve, a universal head and a magnetic sucking piece which are connected with the pressing part; one end of the sleeve is sleeved on the rod body, and the other end of the sleeve is connected with the magnetic attraction piece through the universal head; the spring is coated on the rod body, one end of the spring abuts against the nut at the end of the rod body, and the other end of the spring abuts against the sleeve.

The top covers stacked on the discharging frame are lifted to the grabbing station, the grabbing device carries out levelness adjustment on each top cover and transmits the levelness adjustment to the feeding station, and finally the top covers on the feeding station are quickly fixed on the assembled semi-finished product of the blades and the chassis by the feeding device. Because the top cover is provided with the arc curved surface, the telescopic and rotating magnetic attraction pieces can be realized by the spring and the universal head, so that the adsorption area of the magnetic attraction pieces and the arc curved surface of the top cover is ensured to be maximized, the suction force of the mechanism is enhanced, and the suction unit can firmly grasp the top cover with the arc curved surface in the conveying process of the top cover. Therefore, the suction unit can effectively solve the problem that the existing suction type gripper can only firmly grip a workpiece with a plane, and can also effectively solve the problem that the outer surface of the workpiece is easy to damage due to the fact that the clamping type rigid gripper clamps the workpiece with the arc-shaped curved surface, so that the balance stability and the production efficiency when gripping the workpiece with the arc-shaped curved surface are improved.

The feeding device comprises a clamping part for clamping the top cover on the feeding station, a pressing part which is used for pressing the top cover on the assembled semi-finished product of the blade and the chassis in a pressing way and can rotate, and a feeding conveying cylinder which is used for driving the clamping part and the pressing part to move to the assembled semi-finished product of the blade and the chassis;

the pressing component comprises a fixed seat connected with the feeding and conveying cylinder, a pressing plate, a connecting disc group connected with the pressing plate, a deep groove ball bearing, a main shaft and a pressing cylinder connected with the fixed seat; the pressing cylinder is connected with the connecting disc group through a main shaft, so that the pressing disc is driven to press down the top cover on the assembled semi-finished product of the blade and the chassis; the pressing plate is connected with the main shaft through a deep groove ball bearing, so that the top cover is pressed and driven to rotate when the assembled semi-finished product of the blade and the chassis rotates;

The clamping part comprises a plurality of sliding blocks, guide rails, connecting rods, clamping rods and idler wheels, wherein the sliding blocks are arranged on the connecting disc group, and the guide rails and the connecting rods are equal to the sliding blocks in number; the guide rail is connected with the sliding block in a sliding manner and is fixedly connected with the clamping rod; one end of the connecting rod is hinged with the main shaft, and the other end of the connecting rod is hinged with the guide rail, so that the guide rail is driven to slide in the sliding block by the connecting rod when the main shaft is lifted, and the rollers on the clamping rods extend outwards or retract towards the main shaft to clamp the top cover;

The bottom of the clamping rod is provided with an extension block for supporting the bottom of the top cover edge and pressing the top cover edge; the extension block is in a right angle shape. The arc curved surface of the top cover can be clamped through the rollers, and the rollers arranged on the clamping rods can clamp the top cover at the same time, so that the centering effect can be achieved. The extension block can also clamp and fix the edge of the top cover, so that the conveying stability is improved.

The fan impeller chassis positioning mechanism of the invention works as follows: the clamping jaw is uniformly distributed on the clamp shaft and is tensioned in a clamping groove of the clamp shaft through an O-shaped spring, and a tapered surface of the clamping jaw is attached to the clamp sleeve and is in sliding fit with a track groove sleeve of the clamp sleeve. When the second driving part pulls the screw rod to descend, the second driving part can drive the plurality of clamping claws to stretch outwards simultaneously to support, clamp and position the chassis placed on the first supporting plate, and the centering function is achieved. When the blade is welded with the chassis, the first driving part drives the first clamp shaft sleeve to rotate, so that the first supporting plate, the clamp sleeve and the clamp shaft can be driven to synchronously rotate, and the chassis is always clamped and positioned during rotation welding. At this time, the second driving part fixedly arranged below the bearing seat is connected with the screw rod through the rotary joint, so that the second driving part can be effectively prevented from rotating.

The top cover feeding mechanism of the invention works as follows:

1. the discharging frame is lifted to the grabbing station by a pair of top covers stacked on the material supporting plate.

2. Pressing down a pressing plate of a grabbing device above the grabbing station, and flattening the stacked top covers to adjust the levelness of the top covers; at this time, the magnetic attraction pieces of the plurality of attraction units adsorb the arc curved surface of the top cover in a telescopic and rotating mode, and the adsorption area is maximized to enhance the attraction force. And finally, conveying the adsorbed top cover to the upper part of the feeding station through a grabbing conveying cylinder.

3. The grabbing device descends the top cover to be placed on the discharging plate of the second frame body, when the pressing component presses the top cover to the feeding station, the pressing plate of the grabbing device ascends, meanwhile, the absorbing unit is separated from the top cover, and the grabbing device resets to the grabbing station through the grabbing conveying cylinder to grab the next top cover. At this time, the levelness of the top cover placed on the feeding station can be guaranteed.

4. The roller of the feeding device clamps the arc curved surface of the top cover, and the extension block can clamp and fix the edge position of the top cover, so that the centering effect is achieved. And conveying the clamped top cover to the upper part of the assembled semi-finished product of the blade and the chassis through a feeding conveying cylinder.

5. The pressing plate of the feeding device presses down to hold the top cover on the assembled semi-finished product of the blade and the chassis, and meanwhile, the roller and the extension block are loosened. In the welding process, when the assembled semi-finished product of the blade and the chassis rotates, the pressure plate presses the top cover and rotates together with the top cover to weld.

Compared with the prior art, the invention has the following advantages and beneficial effects: the multi-station full-automatic welding equipment processed by the invention can realize full-automatic welding of the fan impeller according to production requirements, thereby replacing the traditional manual welding process, improving welding efficiency, welding quality and welding precision, and solving the problems of low automation degree and low production efficiency in the current fan welding machinery industry.

Drawings

FIG. 1 is a schematic diagram of a main frame mechanism of a multi-station full-automatic welding device processed by the invention;

FIG. 2 is an internal schematic view of the main frame mechanism of the present invention;

FIG. 3 is a schematic view of a fan wheel of the present invention;

FIG. 4 is a schematic side view of a fan wheel of the present invention;

FIG. 5 is a schematic view of the chassis positioning mechanism of the present invention;

FIG. 6 is an internal schematic view of the chassis positioning mechanism of the present invention;

FIG. 7 is a schematic view of a medium pressure positioning device of the blade and chassis assembly positioning mechanism of the present invention;

FIG. 8 is a schematic view of the inside of a medium pressure positioning device of the blade and chassis assembly positioning mechanism of the present invention;

FIG. 9 is a schematic view of a blade pushing device in the blade and chassis assembly positioning mechanism of the present invention;

FIG. 10 is a schematic view of a blade on a base in a blade and chassis assembly positioning mechanism of the present invention;

FIG. 11 is a schematic view of a blanking frame of the top cover feeding mechanism of the present invention;

FIG. 12 is a schematic view of a second gripper and a second discharge rack in the cap feed mechanism of the present invention;

FIG. 13 is an enlarged view of FIG. 12 at A;

FIG. 14 is a schematic view of a feed device in the cap feed mechanism of the present invention;

FIG. 15 is an enlarged view of FIG. 14 at B;

FIG. 16 is a schematic view of the interior of the feeder of the cap feeder of the present invention;

FIG. 17 is a schematic view of the tilting mechanism of the present invention;

FIG. 18 is a schematic view of a discharge mechanism of the present invention;

FIG. 19 is a schematic view of a slide calibrating mechanism of the present invention;

Wherein, 1 is a chassis, 1.1 is a bottom inner hole, 1.2 is a bottom concave position, 2 is a blade, 3 is a top cover, 3.1 is a circular arc curved surface, 3.2 is a top cover edge, 4 is a chassis positioning mechanism, 4.2 is a supporting plate one, 4.3 is a clamping jaw, 4.4 is a clamp sleeve, 4.4.1 is a track groove, 4.4.2 is a supporting convex position, 4.5 is a clamp shaft sleeve, 4.6 is a driving part one, 4.7 is a driving part two, 4.8 is a bearing seat, 4.9 is a deep groove ball bearing, 4.10 is a screw, 4.11 is an outer shaft, 4.12 is a nut, 4.13 is a supporting plate two, 4.14 is a reinforcing rod, 4.15 is a rotary joint, 4.16 is an outer shell, 5 is a main frame mechanism, 5.1 is a frame, 5.2 is a transmission shaft, 5.3 is a rotary disc, 5.4 is a rotary joint one, 5.5.5 is a total driving device, 5.6 is a rotary conducting ring, 6 is a pressing positioning device, 6.1 is a fixed die, 6.2 is a die, 6.6.3 is a die, 6.6 is a cylinder, 6.6 is a guide cylinder, and a guide plate is a die. 6.7 is a guide shaft support, 6.8 is a flange type linear bearing, 6.9 is a bearing, 6.10 is a rotating shaft, 6.11 is a positioning template, 6.12 is a shaping strip I, 6.13 is a shaping strip II, 6.14 is a blocking cylinder, 6.15 is a blocking piece, 7 is a sheet pushing device, 7.1 is a base body, 7.2 is a side plate, 7.3 is a tensioning material plate I, 7.4 is a tensioning material plate II, 7.5 is a sheet feeding cylinder, 7.6 is an elastic piece, 7.7 is a strip rod, 7.8 is a slide block connecting plate I, 7.9 is a slide block connecting plate II, 7.10 is a sheet pushing cylinder, 7.11 is a base plate, 7.12 is a side plate with a guide rail, 8 is a material discharging frame I, 8.1 is a frame I, 8.2 is a lifter, 8.3 is a lifting rod, 8.4 is a fixed plate I, 8.5 is a material supporting plate, 8.6 is a guide rod, 9 is a material discharging frame II, 9.1 is a frame II, 9.2 is a fixed plate II, 9.9.9 is a fixed plate II, 9.10 is a material clamping plate, 10 is a pressing plate, 10.10 is a pressing unit is a pressing device, and 10 is a pressing device 10.4 is a connecting rod, 10.5 is an adjusting plate, 10.1.1 is a rod body, 10.1.2 is a spring, 10.1.3 is a sleeve, 10.1.4 is a magnetic attraction piece, 10.1.5 is a nut, 11 is a feeding device, 11.1 is a fixed seat, 11.2 is a pressure plate, 11.3 is a connecting disc group, 11.4 is a deep groove ball bearing, 11.5 is a main shaft, 11.6 is a pressing cylinder, 11.7 is a sliding block, 11.8 is a guide rail, 11.9 is a connecting rod, 11.10 is a clamping rod, 11.11 is a roller, 11.12 is an extension block, 12 is a turnover mechanism, 12.1 is a turnover frame, 12.3 is a cylinder, 12.4 is a portal frame body, 12.5 is a pressing cylinder, 12.6 is a rotary motor, 13 is a discharging mechanism, 13.1 is a longitudinal cylinder, 13.2 is a transverse cylinder, 13.3 is a pressing plate, 13.4 is a suction disc, 13.5 is an adjusting block, 14 is a sheet correcting mechanism, 14.1 is a clamping sheet and 14.2 is a clamping sheet device.

Detailed Description

The invention is described in further detail below with reference to the drawings and the detailed description.

Examples

As shown in fig. 1 to 19, the multi-station full-automatic welding equipment for processing the fan impeller is provided with six processing stations for respectively processing the fan impeller; comprising the following steps:

A chassis positioning mechanism 4 for positioning each chassis 1 at each processing station;

The main frame mechanism 5 is used for driving the chassis positioning mechanism 4 to rotate and alternate at six processing stations and providing a total power supply and signals for each station;

The positioning mechanism is used for pressing the chassis 1 on the chassis positioning mechanism 4, pushing and correcting the blade 2 to be positioned on the chassis 1, and is positioned at a second processing station;

The top cover feeding mechanism is used for adjusting the levelness of the top cover 3 and transmitting the top cover to the assembled semi-finished product of the blade and the chassis, and is positioned at a third processing station;

a second welding mechanism for spot welding the top cover 3 and the blade 2 at the third processing station;

the turnover mechanism is used for turning over the welded semi-finished products of the top cover and the blade after spot welding and is positioned at a fifth processing station;

The discharging mechanism is used for discharging the finished fan impeller product and is arranged at a sixth processing station;

Wherein, chassis positioning mechanism 4 all is connected with main frame mechanism 5, and first welding mechanism is located blade and chassis equipment positioning mechanism one side, and second welding mechanism is located top cap feeding mechanism one side, and third welding mechanism is located tilting mechanism one side. The first welding mechanism, the second welding mechanism and the third welding mechanism can adopt the existing mechanical arm type welding device in the market.

The main frame mechanism 5 of the invention comprises a frame 5.1, a transmission shaft 5.2, a turntable 5.3, a rotary joint I5.4, a fixed rod (not shown) connected with the top of the frame 5.1 and a total driving device 5.5, wherein the total driving device 5.5 consists of a motor and a divider, and the output power of the total driving device adopts a mode of driving the divider to output by the motor. The turntable 5.3 is connected with the transmission shaft 5.2 and the chassis positioning mechanism 4, and the bottom end of the transmission shaft 5.2 is connected with the total driving device 5.5, so that the chassis positioning mechanism 4 on the turntable 5.3 is driven to rotate and alternate at six processing stations. The first rotary joint 5.4 comprises an outer rotary shaft, an inner rotary shaft and a rotary conducting ring 5.6, wherein the inner rotary shaft and the rotary conducting ring 5.6 are arranged in the outer rotary shaft through bearings, the inner rotary shaft is connected with a fixed rod, the outer rotary shaft is respectively connected with the transmission shaft 5.2 and the rotary conducting ring 5.6, and the transmission shaft 5.2 is used for driving the rotary conducting ring 5.6 to rotate. According to the invention, the rotary conducting ring 5.6 is arranged on the transmission shaft 5.2, so that an electrifying mode and a signal transmission mode of six stations can be provided, and the problem of wire winding of electric wires and control wires in the station rotation process can be avoided.

The chassis positioning mechanism 4 comprises an outer shell 4.16 connected with a turntable 5.3, a first supporting plate 4.2 used for supporting the chassis 1, a positioning device used for positioning the chassis 1 placed on the first supporting plate 4.2 and a rotating device used for driving the first supporting plate 4.2 and the positioning device to rotate, wherein the positioning device comprises a plurality of clamping jaws 4.3 used for supporting an inner hole 1.1 at the bottom of the chassis 1 to clamp the chassis 1, a liftable clamp shaft and a clamp sleeve 4.4, and the rotating device comprises a clamp shaft sleeve 4.5 and a first driving part 4.6 used for driving the clamp shaft sleeve 4.5 to rotate, and the clamp shaft sleeve 4.5 is arranged in the outer shell 4.16 through a bearing.

The clamping jaws 4.3 are uniformly distributed on the clamp shaft and connected with the clamp shaft, the clamp sleeve 4.4 is sleeved on the clamp shaft and matched and attached with the clamping jaws 4.3, and the clamping jaws 4.3 can be driven to stretch outwards or retract towards the clamp shaft and move along the outer wall of the clamp sleeve when the clamp shaft is lifted, so that the chassis is supported, positioned and separated. The clamp shaft sleeve 4.5 is connected with the clamp sleeve 4.4 and sleeved on the clamp shaft, the first support plate 4.2 is connected with the clamp shaft sleeve 4.5, the first driving part 4.6 is connected with the clamp shaft sleeve 4.5, and the clamp shaft sleeve 4.5 is driven to rotate so as to drive the first support plate 4.2, the clamp sleeve 4.4 and the clamp shaft to synchronously rotate.

The positioning device also comprises a second driving part 4.7 for driving the clamp shaft to lift, one end of the clamp shaft is connected with the second driving part 4.7, the other end of the clamp shaft extends out of the first supporting plate 4.2 and is connected with a plurality of clamping jaws 4.3, and the clamping jaws 4.3 are positioned at the middle hole of the first supporting plate 4.2. When the clamping claws 4.3 positioned at the middle holes of the first supporting plate 4.2 are simultaneously stretched outwards, the inner holes 1.1 at the bottom of the chassis 1 can be supported and the centering function is achieved. The positioning device further comprises a bearing component and a rotary joint 4.15, wherein the bearing component and the rotary joint are used for preventing the driving part II 4.7 from rotating when the clamp shaft rotates, the bearing component comprises a bearing seat 4.8 and a deep groove ball bearing 4.9 arranged on the bearing seat 4.8, the bearing seat 4.8 is arranged above the joint of the clamp shaft and the driving part II 4.7, the deep groove ball bearing 4.9 is sleeved on the clamp shaft, and the driving part II 4.7 is connected with the outer shell 4.16 to be fixedly arranged below the bearing seat 4.8 and connected with the clamp shaft through the rotary joint 4.15. When the first driving part 4.6 drives the clamp shaft sleeve 4.5 to rotate so as to drive the clamp shaft to rotate through the deep groove ball bearing 4.9, the arranged bearing component and the rotary joint 4.15 can effectively prevent the second driving part 4.7 from rotating.

The clamp shaft comprises a screw 4.10 with a nut 4.12 arranged at the top and an outer shaft 4.11 connected with the screw 4.10, one end of the screw 4.10 passes through the outer shaft 4.11 and is in threaded connection with the nut 4.12, and a plurality of clamping jaws 4.3 are arranged on the outer shaft 4.11; the other end is connected with the second driving part 4.7, so that the second driving part 4.7 drives the screw rod 4.10 and the nut 4.12 to lift so as to drive the clamping jaw 4.3 to extend outwards or retract towards the clamp shaft and move along the outer wall of the clamp sleeve 4.4, and the supporting, positioning and detachment of the chassis 1 are realized. And the nut 4.12 is screwed with the screw 4.10 to lock the jaws 4.3 to the outer shaft 4.11 of the clamp shaft. The bottom of the clamp sleeve 4.4 is inserted into the clamp sleeve 4.5, and track grooves 4.4.1 with the same number as the clamping jaws 4.3 are formed in the surface of the upper part of the clamp sleeve, so that the clamping jaws 3 can be conveniently attached to the track grooves 4.4.1. The clamp sleeve 4.4 has a structure with a large middle part and gradually reduced towards two ends, two ends of the clamp sleeve 4.4 have taper, and the track groove 4.4.1 also has taper. The bottom of the clamp sleeve 4.4 is provided with taper and is inserted into the clamp sleeve 4.5, so that the connection tightness and stability between the clamp sleeve 4.4 and the clamp sleeve 4.5 can be improved. The clamping jaw 4.3 is of a structure with a large upper end and a small lower end, the lower end is provided with a taper, and the clamping jaw 4.3 is matched and jointed with the track groove 4.4.1. The plurality of clamping jaws 4.3 are uniformly distributed on the clamp shaft and are connected with the clamp shaft, which means that: the outer shaft 4.11 of the clamping shaft is provided with clamping grooves, and the clamping jaws 4.3 are uniformly distributed on the outer shaft 4.11 of the clamping shaft and are tensioned in the clamping grooves of the outer shaft 4.11 of the clamping shaft through O-shaped springs. The clamping jaw 3 and the track groove 4.4.1 are symmetrical in center, and the design can enable the clamping jaw 4.3 to stretch outwards and move along the track groove 4.4.1 of the clamp sleeve when the clamping jaw 4.3 descends, and the taper of the track groove 4.4.1 can push the clamping jaw 4.3 outwards to realize outward stretching of the clamping jaw 4.3. The design is very ingenious and is simple to realize. The clamp sleeve 4.4 is provided with a supporting convex position 4.4.2 for supporting the concave position 1.2 at the bottom end of the chassis 1, and the supporting convex position 4.4.2 is positioned below the middle hole of the supporting plate I4.2. When the chassis 1 is placed on the first supporting plate 4.2, the bottom concave position 1.2 of the chassis 1 can be positioned on the supporting convex position 4.4.2.

The invention also comprises a second pallet 4.13 for reinforcing the support of the first pallet 4.2, the second pallet 4.13 being connected to the first pallet 4.2 and having reinforcing bars 4.14 (not shown in fig. 1) uniformly distributed on its sides. The design of the second pallet 4.13 and the reinforcing rods 4.14 greatly enhances the holding capacity of the positioning mechanism for the chassis 1. The clamp shaft sleeve is also provided with a bearing seat which is convenient for rotation. The first driving part is formed by connecting a driving part with a clutch function and a speed reducer, and the driving part with the clutch function can facilitate the chassis clamped and positioned to rotate to a set angle and then stop, so that the blades can be welded on the chassis conveniently. The clamping device can drive the clamping jaw 4.3 to stretch outwards when the clamping device shaft descends, so that the chassis 1 placed by the first supporting plate 4.2 is supported, clamped and positioned, and meanwhile, the clamping jaws 4.3 can play a role in centering the chassis 1, so that the welding precision, quality and efficiency of the follow-up blade and the chassis 1 are greatly improved. When the clamp shaft rises, the clamping jaw 4.3 can be driven to retract towards the clamp sleeve and move along the outer wall of the clamp sleeve, so that the chassis 1 is separated. Meanwhile, the first supporting plate 4.2, the clamp sleeve 4.4 and the clamp shaft synchronously rotate, so that not only can each blade be subjected to transposition welding on the chassis 1, but also the consistency of actions can be ensured, and when the chassis 1 rotates, the clamp shaft and the clamping jaw 4.3 also rotate together to always clamp and position the chassis 1.

The blade and chassis assembly positioning mechanism of the invention comprises:

a pressing and positioning device for pressing and positioning the chassis 1 and rotating the chassis and correcting and positioning the blades 2 on the chassis 1;

The pushing device 7 is used for arranging and pushing the blades 2 to the output station and pushing the blades 2 of the output station to the pressing and positioning device piece by piece;

The pressing positioning device 6 is located above the chassis positioning mechanism 4 and comprises a fixed die 6.1 for correcting and positioning the blades 2 and a pressing part for pressing the fixed die 6.1 onto the chassis 1, the fixed die 6.1 is connected with the pressing part and located above the chassis positioning mechanism 4, the fixed die 6.1 is uniformly provided with welding stations of the blades 2 and the chassis 1, the number of the welding stations is equal to that of the blades 2, and the fixed die 6.1 can rotate synchronously with the chassis positioning mechanism 4.

And the pushing device 7 comprises a sheet feeding part for arranging and pushing the blades 2 to the output station and a sheet pushing part for pushing the blades 2 of the output station to each welding station one by one, wherein the output station is opposite to each welding station.

Specifically, the pressing part comprises a die pressing cylinder 6.2, a cylinder frame body 6.3, a die connecting plate 6.4 used for being connected with a fixed die 6.1 and a guide component used for guaranteeing the pressing straightness of the fixed die 6.1 and playing a role of resetting and buffering, wherein the die pressing cylinder 6.2 is arranged on the cylinder frame body 6.3 and extends out of the cylinder frame body 6.3 to be connected with the die connecting plate 6.4, so that the die connecting plate 6.4 is driven to descend to press the chassis 1 on the chassis positioning station through the fixed die 6.1. The guide component comprises guide shafts 6.5, springs 6.6, guide shaft supports 6.7 and flange-type linear bearings 6.8 which are arranged on two sides of the die pressing cylinder 6.2, wherein the guide shaft supports 6.7 are arranged on the die connecting plate 6.4 and connected with the die pressing cylinder 6.2, the flange-type linear bearings 6.8 are sleeved on the guide shafts 6.5 and connected with the cylinder frame body 6.3, the bottom ends of the guide shafts 6.5 extend out of the cylinder frame body 3 and are connected with the guide shaft supports 6.7, the springs 6.6 are sleeved on the guide shafts 6.5, one ends of the springs are propped against the cylinder frame body 3, and the other ends of the springs are propped against the flange-type linear bearings 6.8.

The fixed die 6.1 is rotatably connected with the die connecting plate 6.4 through the bearing 6.9 and the rotating shaft 6.10, a plurality of unidirectional inclined fixed parts are uniformly arranged on the fixed die 6.1 along the side edges of the fixed die, and each fixed part is provided with a positioning template 6.11. And each positioning template 6.11 is provided with a first shaping strip 6.12 and a second shaping strip 6.13 which are matched with the upper edge of the blade 2, the first shaping strip 6.12 is arranged on the upper part of the side wall of the positioning template 6.11, the second shaping strip 6.13 is positioned on one side of the positioning template 6.11 and is connected with the positioning template 6.11 to form an insertion space of the blade 2, and the insertion space of the blade 2 is a welding station.

The pressing and positioning device of the present embodiment further includes a blocking portion for stopping the rotation of the fixed die 6.1, the blocking portion including a blocking cylinder 6.14 connected with the cylinder frame 6.3 and a blocking member 6.15, the blocking member 6.15 being located above the fixed die 6.1 and connected with the blocking cylinder 6.14. When it is desired to stop the rotation of the stationary mould 6, the stop 6.15 can be driven down to stop the rotation of the stationary mould 6.

The sheet feeding part comprises a base body 7.1, a side plate 7.2 arranged on the base body 7.1, a tensioning material plate I7.3, a tensioning material plate II 7.4 and a sheet feeding cylinder 7.5, wherein the base body 7.1 and the side plate 7.2 enclose a space for arranging the blades 2; the sheet feeding cylinder 7.5 is connected with the seat body 7.1 and the tensioning material plate I7.3, one side of the tensioning material plate II 7.4 is connected with the tensioning material plate I7.3 through the elastic piece 7.6, and the other end is connected with the arranged blades 2. The end face of the base body 7.1 is provided with a bar 7.7 for reducing friction force between the blade 2 and the end face of the base body 7.1 during sheet feeding, and the bar 7.7 is arranged on the end face of the base body 7.1.

The pushing piece part comprises a bottom plate 7.11 with a guide rail, a side plate 7.12 with a guide rail, a first slide block connecting plate 7.8 with a slide block, a second slide block connecting plate 7.9 with a slide block and a pushing piece cylinder 7.10, wherein the side plate 7.12 with the guide rail is in sliding connection with the second slide block connecting plate 7.9 through the guide rail and the slide block and is connected with the first slide block connecting plate 7.8; the first slide block connecting plate 7.8 is in sliding connection with the bottom plate 7.11 through a slide block and a guide rail and is connected with the pushing piece cylinder 7.10, so that the pushing piece cylinder 7.10 drives the first slide block connecting plate 7.8 to drive the side plate 7.12 with the guide rail to push the blades 2 of the output station piece by piece.

The top cover feeding mechanism of the invention comprises:

a first discharging frame 8 for superposing and placing the top cover 3 and lifting the top cover 3 to a material grabbing station;

a second discharging frame 9 for placing the top cover 3 and serving as a feeding station;

a gripping device 10 for levelness adjustment of each top cover 3 at the gripping station and transferring to the feeding station;

and a feeding device 11 for conveying the top cover 3 adjusted on the feeding station to the assembled semi-finished product of the blade and the chassis;

The first discharging frame 8 and the second discharging frame 9 are respectively positioned below the conveying direction of the grabbing device 10, the grabbing station is positioned on the first discharging frame 8, and the feeding device 11 is positioned above the second discharging frame 9 and the assembled semi-finished product of the blades and the chassis.

Specifically, the first discharging frame 8 comprises a first frame body 8.1, a lifter 8.2 arranged on the first frame body 8.1, a lifter 8.3, a first fixing plate 8.4 connected with the first frame body 8.1, a material supporting plate 8.5 used for placing the top cover 3and a guide rod 8.6 used for facilitating the top cover 3 to be placed on the material supporting plate 8.5, wherein the material supporting plate 8.5 is arranged on the first fixing plate 8.4, the bottom of the material supporting plate is connected with the lifter 8.3, the lifter 8.2 is connected with the lifter 8.3, and the material supporting plate 8.5 connected with the lifter 8.3 is driven to rise to a material grabbing station. The first fixing plate 8.4 is provided with a long groove, and the guide rod 8.6 is inserted and fixed on the long groove of the first fixing plate 8.4. The positioning of the top cover 3 with different sizes can be adjusted by the distance of the guide rod 8.6 at the inserting position of the long groove.

The material grabbing device 10 comprises a material pressing component for flattening through holes of the top cover 3 on the material grabbing station, an absorbing unit 10.1 for absorbing the circular arc curved surface 3.1 of the top cover, and a material grabbing and conveying cylinder (not shown) for driving the material pressing component and the absorbing unit 10.1 to move to the feeding station, wherein the absorbing unit 10.1 is connected with the material pressing component, absorbing points of the absorbing unit and the top cover 3 are circumferentially distributed by taking the center of the top cover 3 as a circular point, and the material grabbing and conveying cylinder is connected with the material pressing component. The pressing component comprises a pressing cylinder (not shown) connected with the grabbing conveying cylinder, a connecting disc 10.2 and a pressing plate 10.3, wherein the pressing plate 10.3 is connected with the connecting disc 10.2 through a connecting rod 10.4, and the pressing cylinder is connected with the connecting disc 10.2 to drive the pressing plate 10.3 to lift. When the pressing plate 10.3 is pressed down, the stacked top covers 3 can be flattened, so that the levelness of the top covers 3 can be adjusted, and the top covers 3 are sucked by the suction unit 10.1. The invention also comprises an adjusting plate 10.5 connected with the connecting disc 10.2, wherein the adjusting plate 10.5 is provided with an adjusting hole, and the suction unit 10.1 is connected with the adjusting plate 10.5 through the adjusting hole, so that the position of the suction unit 10.1 is adjustable. The sucking unit 10.1 comprises a rod body 10.1.1 connected with a pressing component through an adjusting plate 10.5, a spring 10.1.2, a sleeve 10.1.3, a universal head (not shown) and a magnetic sucking piece 10.1.4, wherein one end of the sleeve 10.1.3 is sleeved on the rod body 10.1.1, the other end of the sleeve is connected with the magnetic sucking piece 11.4 through the universal head, the spring 10.1.2 is coated on the rod body 10.1.1, one end of the spring is propped against a nut 10.1.5 at the end of the rod body 10.1.1, and the other end of the spring is propped against the sleeve 10.1.3.

The discharging frame II 9 comprises a frame body II 9.1, a fixing plate II 9.2 arranged on the frame body II 9.1, a discharging plate 9.3 connected with the fixing plate II 9.2 and used for placing the top cover 3, and a plurality of compressing components 9.4 used for compressing the top cover 3 on the feeding station; the plurality of pressing parts 9.4 are respectively arranged on the side edge of the second frame body 9.1 and connected with the discharging plate 9.3, and pressing points of the pressing parts and the top cover 3 are circumferentially distributed by taking the center of the top cover 3 as a round point; each hold-down element 9.4 is a corner cylinder provided with a base. When the pressing part 9.4 presses the top cover 3 at the feeding station, the pressing plate 10.3 of the grabbing device 10 is lifted, meanwhile, the sucking unit 10.1 is separated from the top cover 3, and the top cover 3 is reset to the grabbing station through the grabbing conveying cylinder to grab the next round of top cover 3.

The feeding device 11 comprises a clamping part for clamping the top cover 3 on the feeding station, a pressing part which is used for pressing the top cover 3 onto the assembled semi-finished product of the blade and the chassis and can rotate, and a feeding conveying cylinder (not shown) which is used for driving the clamping part and the pressing part to move to the assembled semi-finished product of the blade and the chassis. The pressing component comprises a fixed seat 11.1 connected with the feeding and conveying cylinder, a pressing plate 11.2, a connecting disc group 11.3 connected with the pressing plate 11.2, a deep groove ball bearing 11.4, a main shaft 11.5 and a pressing cylinder 11.6 connected with the fixed seat 11.1, wherein the pressing cylinder 11.6 is connected with the connecting disc group 11.3 through the main shaft 11.5 to drive the pressing plate 11.2 to press down the top cover 3 on the welding station, and the pressing plate 11.2 is connected with the main shaft 11.5 through the deep groove ball bearing 11.4 to press the top cover 3 and drive the top cover 3 to rotate when the assembled semi-finished product of the blade and the chassis rotates.

The clamping component comprises a plurality of sliding blocks 11.7 arranged on the connecting disc group 11.3, guide rails 11.8 and connecting rods 11.9, the number of which is equal to that of the sliding blocks 11.7, clamping rods 11.10 and idler wheels 11.11 connected with the clamping rods 11.10, wherein the guide rails 11.8 are in sliding connection with the sliding blocks 11.7 and fixedly connected with the clamping rods 11.10, one end of each connecting rod 11.9 is hinged with the corresponding main shaft 11.5, the other end of each connecting rod is hinged with the corresponding guide rail 11.8, and when the main shaft 11.5 ascends and descends, the guide rails 11.8 are driven to slide in the corresponding sliding blocks 11.7 through the corresponding connecting rods 11.9, so that the idler wheels 11.11 on the clamping rods 11.10 stretch outwards or retract towards the main shaft 11.5 to clamp the top cover 3. The bottom of the clamping bar 11.10 is provided with an extension block 11.12 for holding the bottom of the top cover rim 3.2 and pressing the top cover rim 3.2, and the extension block 11.12 is in a right-angle shape.

The fourth station of the full-automatic welding device can be a motorized station, and can be used for manually checking the semi-finished product rotated from the third station, and the like. The turnover mechanism 12 of the equipment at the fifth station is shown in fig. 17, and comprises a turnover frame body 12.1, an air cylinder 12.3 arranged on the turnover frame body 12.1, a portal frame body 12.4 connected with the air cylinder 12.3, a compression air cylinder 12.5 and a rotary motor 12.6; the rotating motor 12.6 is arranged on two side walls of the portal frame body 12.4 and is connected with the compression air cylinders 12.5, and a clamping space for welding a semi-finished product of the top cover and the blade is formed between the two compression air cylinders 12.5. The cylinder 12.3 can drive the portal frame body 12.4 to lift so as to drive the compressing cylinder 12.5 clamping the semi-finished product welded by the top cover and the blade to lift, and the turnover of the semi-finished product welded by the top cover and the blade is realized through the rotating motor 12.6.

The discharging mechanism 13 of the device at the sixth station is shown in fig. 18, and comprises a longitudinal cylinder 13.1, a transverse cylinder 13.2, a lower pressing plate piece 13.3 and a sucking disc 13.4 arranged on the lower pressing plate piece 13.3, wherein the lower pressing plate piece 13.3 is provided with an adjusting block 13.5, and the sucking disc 13.4 is arranged on the lower pressing plate piece 13.3 through the adjusting block 13.5 and is adjusted in position through the adjusting block 13.5. The longitudinal air cylinder 13.1 is connected with the lower pressing plate piece 13.3, so that the lower pressing plate piece 13.3 is driven to descend to drive the sucker 13.4 to descend to adsorb the chassis 1 of the fan impeller finished product, the transverse air cylinder 13.2 is connected with the longitudinal air cylinder 13.1, the longitudinal air cylinder 13.1 is driven to move, and the sucker 13.4 adsorbed with the fan impeller finished product is driven to a discharge port to realize the discharge of the fan impeller finished product.

The device also comprises a sheet calibrating mechanism positioned at the third processing station, wherein the sheet calibrating mechanism 14 is used for calibrating welding base points of one blade 2 before the second welding mechanism performs spot welding on the top cover 3 and the blade 2, so as to determine the base points in the spot welding process. The sheet correcting mechanism 14 pushes the clamping sheet device 14.2 to clamp the blades 2 through the air cylinder 14.1 so as to determine the position of the blades 2 as a welding base point, and the chassis positioning mechanism 4 starts to rotate according to the base point by a fixed angle, so that the second welding mechanism can realize spot welding of the top cover 3 and each blade 2.

The fan impeller chassis positioning mechanism of the invention works as follows: the clamping jaw 4.3 is uniformly distributed on the clamp shaft and is tensioned in a clamping groove of the clamp shaft through an O-shaped spring, and a tapered surface of the clamping jaw 4.3 is attached to the clamp sleeve 4.4 and is in sliding fit with the track groove 4.4.1 of the clamp sleeve 4.4. When the driving part II 4.7 pulls the screw rod 4.10 to descend, the clamping jaws 4.3 can be driven to stretch outwards simultaneously to support, clamp and position the chassis 1 placed on the supporting plate I4.2, and the centering function is achieved. When the blade 2 and the chassis 2 are welded, the first driving part 4.6 drives the clamp shaft sleeve 4.5 to rotate, so that the first supporting plate 4.2, the clamp sleeve 4.4 and the clamp shaft can be driven to synchronously rotate, and the chassis 1 is always clamped and positioned when the rotation welding is realized. At this time, the second driving part 4.7 fixedly arranged below the bearing seat is connected with the screw 4.10 through the rotary joint 4.15, so that the second driving part 4.7 can be effectively prevented from rotating.

The top cover feeding mechanism of the invention works as follows:

1. the first discharging frame 8 is lifted to the grabbing station by the top cover 3 stacked on the material supporting plate 8.5.

2. Pressing down a pressing plate 10.3 of a grabbing device above the grabbing station, and flattening the stacked top covers 3 to adjust the levelness of the top covers 3; at this time, the magnetic attraction pieces 10.1.4 of the plurality of attraction units 10.1 adsorb the arc curved surface 3.1 of the top cover 3 in a telescopic and rotary mode, and the adsorption area is maximized to enhance the attraction force. And finally, conveying the adsorbed top cover 3 to the upper part of the feeding station through a grabbing conveying cylinder.

3. The top cover 3 is lowered and placed on the discharging plate 9.3 of the second frame body 9.1 by the grabbing device, when the top cover 3 is pressed on the feeding station by the pressing component, the pressing plate 10.3 of the grabbing device is lifted, meanwhile, the sucking unit 10.1 is separated from the top cover, and the top cover is reset to the grabbing station through the grabbing conveying cylinder to grab the next top cover 3. At this time, the cover 3 placed on the feeding station can ensure levelness.

4. The roller 11.11 of the feeding device 11 clamps the arc curved surface 3.1 of the top cover 3, and the extension block 11.12 can clamp and fix the 3.2 position of the edge of the top cover, so that the centering effect is achieved. The clamped top cover 3 is conveyed to the position above the assembled semi-finished product of the blade and the chassis through the feeding conveying cylinder.

5. The pressing plate 11.2 of the feeding device 11 is pressed down to press the top cover 3 on the assembled semi-finished product of the blade and the chassis, and the roller 11.11 and the extension block 11.12 are loosened. In the welding process, the pressing plate 11.2 presses the top cover 3 and rotates together with the top cover 3 to weld when the assembled semi-finished product of the blade and the chassis rotates.

The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.

Claims

1. A full-automatic welding equipment of multistation of fan impeller processing, its characterized in that: six processing stations for respectively processing the fan impeller are arranged; comprising the following steps:

The chassis positioning mechanisms are connected with the main frame mechanism; the first welding mechanism is positioned at one side of the blade and chassis assembling and positioning mechanism; the second welding mechanism is positioned at one side of the top cover feeding mechanism; the third welding mechanism is positioned at one side of the turnover mechanism;

The clamp shaft sleeve is connected with the clamp sleeve and sleeved on the clamp shaft; the first supporting plate is connected with the clamp shaft sleeve, the first driving part is connected with the clamp shaft sleeve, and the clamp shaft sleeve is driven to rotate so as to drive the first supporting plate, the clamp sleeve and the clamp shaft to synchronously rotate;

The fixture shaft comprises a shaft body and an outer shaft connected with the shaft body; one end of the shaft body penetrates through the outer shaft, and a plurality of clamping claws are arranged on the outer shaft; the other end is connected with the second driving part through a rotary joint, so that the second driving part drives the shaft body to lift to drive the clamping jaw to extend outwards or retract towards the clamp shaft and move along the outer wall of the clamp sleeve, and the supporting, positioning and separating of the chassis are realized;

2. The multi-station full-automatic welding equipment for processing the fan impeller according to claim 1, wherein: the main frame mechanism comprises a frame, a transmission shaft, a turntable, a rotary joint, a fixed rod and a total driving device, wherein the transmission shaft, the turntable, the rotary joint, the fixed rod and the total driving device are arranged on the frame; the turntable is connected with the transmission shaft and the chassis positioning mechanism, and the bottom end of the transmission shaft is connected with the main driving device to realize that the chassis positioning mechanism on the turntable is driven to rotate alternately at six processing stations;

The rotary joint comprises an outer rotating shaft, an inner fixed shaft and a rotary conducting ring, wherein the inner fixed shaft and the rotary conducting ring are arranged in the outer rotating shaft through bearings, and the inner fixed shaft is connected with the fixed rod; the outer rotating shaft is respectively connected with the transmission shaft and the rotating conductive ring, so that the transmission shaft drives the rotating conductive ring to rotate.

3. The multi-station full-automatic welding equipment for processing the fan impeller according to claim 1, wherein: the blade and chassis assembly positioning mechanism includes:

4. A multi-station full-automatic welding apparatus for processing a fan wheel according to claim 3, wherein: the pressing part comprises a die pressing cylinder, a cylinder frame body and a die connecting plate used for being connected with a fixed die; the die pressing cylinder is arranged on the cylinder frame body, extends out of the cylinder frame body and is connected with the die connecting plate, so that the die connecting plate is driven to descend to press a chassis on the chassis positioning mechanism through a fixed die;

each positioning template is provided with a first shaping strip and a second shaping strip which are matched with the upper edge of the blade; the first shaping strip is arranged at the upper part of the side wall of the positioning template; the shaping strip is located at one side of the positioning template and is connected with the positioning template to form an insertion space of the blade, and the insertion space of the blade is a welding station.

5. A multi-station full-automatic welding apparatus for processing a fan wheel according to claim 3, wherein: the sheet feeding part comprises a base body, a side plate arranged on the base body, a tensioning material plate I, a tensioning material plate II and a sheet feeding cylinder; the base body and the side plates enclose a space for blade arrangement; the sheet feeding cylinder is connected with the seat body and connected with the tensioning material plate; one side of the tensioning material plate II is connected with the tensioning material plate through an elastic piece, and the other side of the tensioning material plate II is connected with the arranged blades;

The end face of the base is provided with a bar for reducing friction force between the blade and the end face of the base when the blade is fed, and the bar is arranged on the end face of the base.

6. The multi-station full-automatic welding equipment for processing the fan impeller according to claim 1, wherein: the top cap feeding mechanism includes:

7. The multi-station full-automatic welding equipment for processing the fan impeller according to claim 6, wherein: the feeding device comprises a clamping part for clamping the top cover on the feeding station, a pressing part which is used for pressing the top cover on the assembled semi-finished product of the blade and the chassis in a pressing way and can rotate, and a feeding conveying cylinder which is used for driving the clamping part and the pressing part to move to the assembled semi-finished product of the blade and the chassis;

the bottom of the clamping rod is provided with an extension block for supporting the bottom of the top cover edge and pressing the top cover edge; the extension block is in a right angle shape.