CN113145970B

CN113145970B - Automatic welding equipment

Info

Publication number: CN113145970B
Application number: CN202110295533.7A
Authority: CN
Inventors: 李大平
Original assignee: Hangzhou Panasia Sanitary Ware Co Ltd
Current assignee: Hangzhou Panasia Sanitary Ware Co Ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2022-05-27
Anticipated expiration: 2041-03-19
Also published as: CN113145970A

Abstract

The invention discloses automatic welding equipment, which comprises a driving motor and a rotating table, base and welding assembly, driving motor's output shaft is connected with the bottom center of rotating the platform, the rotation platform is arranged in on the base and is connected with the base rotation under driving motor's drive, the top of rotating the platform is equipped with a plurality of work piece positioning seat, a plurality of work piece positioning seat uses driving motor to constitute a ring type as the center, welding assembly is located the side of rotating the platform, welding assembly includes base and control box, the one end of base is close to the rotation platform, the rotation platform is kept away from to the other end of base, the control box is located the base, the one end that the base can be followed to the control box slides to the other end, be equipped with a plurality of heating pipes on the control box, the one end of heating pipe is installed on the control box, the other end of heating pipe is equipped with the corresponding hot plate with one of them work piece positioning seat, the hot plate passes through the heating pipe and is connected with the control box electricity. The invention has the beneficial effects that: the melting rate of the welding wire is improved, and the welding is in place.

Description

Automatic welding equipment

Technical Field

The invention relates to the technical field of welding equipment, in particular to automatic welding equipment.

Background

Brazing, which is a welding method that after brazing filler metal lower than the melting point of a weldment and the weldment are heated to the melting temperature of the brazing filler metal at the same time, the liquid brazing filler metal is used for filling gaps of solid workpieces so as to connect the metals. Brazing is a conventional and widely used welding method, and is adopted due to low welding cost, simple operation and the like, and is particularly applied to conventional machined products more generally.

In the prior art, a welding gun is used for spraying high-temperature flame to melt brazing filler metal to achieve a welding effect, when the welding gun is used for heating a joint of workpieces, the cross section area of a nozzle of the welding gun is small, the sprayed beam-shaped high-temperature flame heats the brazing filler metal in a point contact mode, and therefore part of the brazing filler metal is not melted, welding is not in place, and welding quality is affected.

Disclosure of Invention

The invention provides automatic welding equipment for in-place welding, aiming at overcoming the defect of in-place welding in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

an automatic welding device comprises a driving motor, a rotating platform, a base and a welding assembly, wherein an output shaft of the driving motor is connected with the center of the bottom of the rotating platform, the rotating platform is arranged on the base and is rotationally connected with the base under the driving of the driving motor, a plurality of workpiece positioning seats are arranged at the top of the rotating platform, the plurality of workpiece positioning seats form a circular ring shape by taking the driving motor as the center, the welding assembly is positioned on the side surface of the rotating platform, the welding assembly comprises a base and a control box, one end of the base is close to the rotating platform, the other end of the base is far away from the rotating platform, the control box is positioned on the base and can slide towards the other end along one end of the base, a plurality of heating pipes are arranged on the control box, one ends of the heating pipes are arranged on the control box, heating plates corresponding to one workpiece positioning seat are arranged at the other ends of the heating pipes, the heating plate is electrically connected with the control box through the heating pipe.

The output shaft of the driving motor is connected with the center of the bottom of the rotating table, the rotating table is arranged on the base and is rotationally connected with the base under the driving of the driving motor, the top of the rotating table is provided with a plurality of workpiece positioning seats which form a circular ring shape by taking the driving motor as the center, the welding assembly is positioned on the side surface of the rotating table and comprises a base and a control box, one end of the base is close to the rotating table, the other end of the base is far away from the rotating platform, the control box is positioned on the base and can slide to the other end along one end of the base, a plurality of heating pipes are arranged on the control box, one end of each heating pipe is arranged on the control box, and the other end of the heating pipe is provided with a heating plate corresponding to one of the workpiece positioning seats, and the heating plate is electrically connected with the control box through the heating pipe. The invention is mainly used for welding the water faucet pipe fittings, an operator firstly respectively places two water faucet pipe fittings to be welded together at corresponding positions on a workpiece positioning seat, and places welding wires at the joint of the two water faucet pipe fittings, a control system controls a driving motor to work, a rotating platform is driven by the driving motor to rotate and drives the water faucet pipe fittings to rotate to positions corresponding to welding components, the control system controls a control box to move to one side of the rotating platform at the moment, so that the position of a heating plate just corresponds to the position of the welding wires, then the control system controls the control box to work, heat is conducted to the heating plate through a heating pipe, the heating plate reaches the heating temperature required by welding, the control system controls the control box to move back and forth at a constant speed within a certain range, so that the heating plate can uniformly heat the welding wires and melt the welding wires, the heating plate uniformly heats the welding wire in a surface contact mode instead of a traditional welding gun point contact mode, so that the melting rate of the welding wire is improved, the aim of in-place welding is fulfilled, and the welding quality is improved; after welding, the control system controls the control box to move reversely and controls the driving motor to rotate again, and therefore welding of the water faucet pipe fitting on the next workpiece positioning seat is facilitated.

Preferably, the workpiece positioning seat comprises an installation seat, a first pipe body, a second pipe body and a welding wire, the bottom of the installation seat is detachably installed on the rotating table, a bottom plate is arranged at the top of the installation seat and detachably connected with the installation seat, one end of the bottom plate is close to the driving motor, the other end of the bottom plate is far away from the driving motor, a positioning seat is arranged at one end of the bottom plate far away from the driving motor, the bottom of the positioning seat is fixedly connected with the bottom plate, a V-shaped groove is formed in the top of the positioning seat, the first pipe body is arranged in the V-shaped groove, two parallel installation columns are arranged at one end of the bottom plate close to the driving motor and fixedly connected with the bottom plate, a positioning assembly is arranged on each installation column, the second pipe body is positioned on the installation columns through the positioning assembly, the end part of the second pipe body is arranged on the first pipe body through the welding wire and is communicated with the inside of the first pipe body, the position of the heating plate corresponds to the position of the welding wire. According to the welding device, the second pipe body is required to be welded on the first pipe body, an operator firstly places the first pipe body in the V-shaped groove, then places welding wires at a position, required to be welded, on the first pipe body, and finally presses the end part of the second pipe body against the first pipe body through the welding wires, and the second pipe body is fixed through the positioning assembly, so that the welding wires and the first pipe body can be preliminarily positioned under the action of the second pipe body, the welding wires and the first pipe body can be guaranteed to be stable in position under the condition that the welding wires and the first pipe body are not influenced by external force or equipment stably runs, and the welding position accuracy and the welding quality are guaranteed; meanwhile, the position of the heating plate corresponds to the position of the welding wire, so that the welding wire is heated by the heating plate and is melted, and the design is reasonable.

Preferably, the positioning assembly comprises a first supporting block, a second supporting block and a third supporting block, the first supporting block, the second supporting block and the third supporting block are sequentially distributed on the mounting columns from bottom to top, two ends of the first supporting block are fixedly connected with the two mounting columns respectively, an adjusting column is arranged on the first supporting block, one end of the adjusting column is in threaded connection with the first supporting block, an operator can conveniently adjust the length according to the position where the second pipe body is placed during welding, so that the first limiting groove can be well matched with the second pipe body, the application range is wide, the practicability is high, a limiting piece is arranged at the other end of the adjusting column, one end of the limiting piece is fixedly connected with the adjusting column, one side of the second pipe body is close to the mounting columns, the other side corresponding to the second pipe body is far away from the mounting columns, and a first limiting groove matched with one side of the second pipe body, close to the mounting columns, is arranged at the other end of the limiting piece, one end of the second supporting block is fixedly connected with the two mounting columns respectively, the other end of the second supporting block is provided with a rotating groove, a first limiting block is arranged in the rotating groove, one side of the first limiting block is rotatably connected with the rotating groove, an operator can conveniently rotate and adjust the first limiting block according to the required inclination when the second pipe body is welded, so that the second limiting groove on the first limiting block can be well matched with the second pipe body, the application range is wide, the practicability is high, the other side corresponding to the first limiting block is provided with a second limiting groove matched with one side, close to the mounting columns, of the second pipe body, the supporting block is located on the side face of the second pipe body, one end of the third supporting block is fixedly connected with one mounting column, the other end of the third supporting block is provided with a connecting rod, one end of the connecting rod is in shaft connection with the third supporting block through a torsion spring, so that the pinch roller can compress the second pipe body under the action of the torsion spring, prevent that it from rocking and leading to the position deviation to appear in the rotatory in-process of revolving stage, the other end of connecting rod is equipped with the pinch roller, the pinch roller is located between spacing piece and the stopper one, is favorable to the location of body two, the pinch roller contacts with the one side that the erection column was kept away from to body two. When the operator needs to fix a position body two, upwards open the pinch roller earlier, support the tip of body two through the welding wire and press on body one, and arrange body two in spacing groove one and spacing groove two near one side of erection column, then rotate the pinch roller downwards, make it support and lean on the one side of keeping away from the erection column at body two, thereby be favorable to the location of body two and the initial positioning of body one and welding wire, make it not take place the offset in the rotary table rotation work, in order to guarantee welded position precision, the operation is simple, and the design is reasonable.

Preferably, a long bolt is arranged in the rotating groove, the first limiting block is rotatably connected with the rotating groove through the long bolt, a locking nut is arranged on the long bolt, and the long bolt sequentially penetrates through one side of the rotating groove, the first limiting block and the other side of the rotating groove to be in threaded connection with the locking nut. The design is favorable to the operator to adjust the turned angle of stopper one according to the required gradient of body two when welding to through lock nut to its locking of going into, make stopper one after adjusting can obtain the location, thereby be favorable to guaranteeing the position stability after the body two is fixed a position.

Preferably, the number of the heating pipes is two, the two heating pipes are respectively located on the left side and the right side of the first pipe body, the plane where the heating pipes are located is parallel to the first pipe body, and the heating plates on the two heating pipes are respectively located on the left side and the right side of the welding wire. Because the surface shape of the first pipe body is arc-shaped, and the welding wires are attached to the surface of the first pipe body, the heating plate can comprehensively and uniformly heat the welding wires, the melting rate of the welding wires is improved, and therefore the joint of the second pipe body and the first pipe body can be welded in place.

Preferably, one end of the base is provided with a second limiting block, the other end of the base is provided with a ball screw stepping motor, an output shaft of the ball screw stepping motor is connected with the control box, the base is provided with a sliding rail parallel to the output shaft of the ball screw stepping motor, the end part of the sliding rail is connected with the second limiting block, the control box is provided with a sliding block matched with the sliding rail, and the control box is matched with the base in a sliding manner through the sliding block and the sliding rail under the driving of the ball screw stepping motor. The design is favorable for the control system to realize accurate control of the ball screw stepping motor to drive the control box to move, and the accuracy of the welding position and the welding quality are improved.

Preferably, two universal bamboo joint pipes are arranged above the second pipe body on the other workpiece positioning seat, one end of each universal bamboo joint pipe is communicated with an external water pipe, a water outlet corresponding to the welding wire is formed in the other end of each universal bamboo joint pipe, and the positioning seat is located below the second pipe body. Because higher temperature is remained on the welded faucet pipe fitting, cold water is sprayed to the welding position through a water outlet on the universal bamboo joint pipe, the quick cooling of the faucet pipe fitting is facilitated, an operator can conveniently take the faucet pipe fitting off the workpiece positioning seat, and the personal safety is protected; according to different working conditions, the universal bamboo joint pipe can flexibly adjust the position of the water outlet and position the water outlet, and the universal bamboo joint pipe has a wide application range.

Preferably, one end of the positioning seat is close to the mounting column, the other end of the positioning seat is far away from the mounting column, a supporting seat is arranged at one end of the positioning seat close to the mounting column, a limiting shaft matched with the inside of the first pipe body is arranged on the supporting seat, a through hole communicated with the inside of the second pipe body is arranged on the first pipe body, the welding wire is in a ring shape, the inner diameter of the welding wire is the same as that of the through hole, the welding wire is arranged on the through hole, the central axis of the welding wire is the same as that of the through hole, a first groove corresponding to the through hole is arranged in the limiting shaft, a second groove is arranged at the center of the bottom of the first groove, an air bag is arranged in the second groove, a plurality of uniformly distributed limiting rods are arranged on the side wall of the first groove, one end of each limiting rod is connected with the side wall of the first groove through a torsion spring in a shaft mode, and the other end of each limiting rod is in contact with the inner side wall of the welding wire, spacing axle fixed connection is in one side of supporting seat, the corresponding opposite side of supporting seat is equipped with electric jar one, spacing epaxial sealed chamber that is equipped with, be equipped with the piston in the sealed chamber, the telescopic shaft on the electric jar one runs through the one end and the piston connection in supporting seat and sealed chamber in proper order, the other end in sealed chamber is equipped with the breather pipe, the one end and the sealed chamber of breather pipe are linked together, the bottom center that the other end of breather pipe runs through recess two is the same with the inside of gasbag, the gasbag contacts with a plurality of gag lever posts respectively. The supporting seat is arranged at one end, close to the mounting column, of the positioning seat, so that an operator can conveniently take the welded faucet pipe fitting off the workpiece positioning seat, and the design is reasonable; an operator firstly sleeves the pipe body on the limiting shaft, then places the welding wire in the through hole on the first pipe body, finally, the operator upwards opens the pressing wheel, presses the end part of the second pipe body against the first pipe body through the welding wire, simultaneously places one side, close to the mounting column, of the second pipe body in the first limiting groove and the second limiting groove, and then downwards rotates the pressing wheel to enable the pressing wheel to abut against one side, far away from the mounting column, of the second pipe body, so that the second pipe body is positioned, and at the moment, the first pipe body and the welding wire are preliminarily positioned; the control system controls the first electric cylinder to work, the telescopic shaft on the first electric cylinder drives the piston to move, air in the sealed cavity is compressed into the air bag through the vent pipe, the air bag is spherical in size and overcomes the acting force of the torsion spring to drive the limiting rod to rotate upwards until the end of the limiting rod is contacted with the inner side wall of the welding wire, in the process, the air bag can drive the first pipe body to move when the air bag is large in size, the center of the first groove is located on the central axis of the through hole, the position of the first pipe body can be automatically corrected under the action of the air bag, the center of the first groove is always located on the central axis of the through hole or the central axis of the welding wire, the welding wire is enabled to be corresponding to the position of the through hole, the welding wire and the first pipe body are enabled to be secondarily positioned, and the welding quality is improved.

As preferred, the other end of gag lever post is equipped with the effect piece, the effect piece is located one side of gag lever post, the one end and the gag lever post fixed connection of effect piece, the other end shape of effect piece contacts for the arc and with the inside wall of welding wire, the breather pipe runs through the one end at recess two's bottom center and is equipped with a plurality of arc brackets, and a plurality of arc brackets are along the circumference evenly distributed of breather pipe on the lateral wall of breather pipe, arc bracket and breather pipe fixed connection, the gasbag just is located the arc bracket with the tip fixed connection of breather pipe, the gasbag contacts with the corresponding opposite side of a plurality of gag lever posts respectively. Under the action of the air bag, the limiting rod can be in full contact with the inner ring of the welding wire through the action block, so that the welding wire can be positioned, and the design is reasonable; the end part of the action block is arc-shaped, so that the inner side wall of the welding wire is protected from being damaged; the center of gasbag is located the center axis of through-hole when arc bracket helps gasbag volume grow simultaneously to be favorable to the gasbag to aerify on can acting on a plurality of gag lever posts simultaneously, be convenient for a plurality of gag lever posts can rotate the same angle simultaneously and act on the inside wall of welding wire, improve the position precision of welding wire after the location.

Preferably, the side face of the positioning seat is provided with a second electric cylinder, the second electric cylinder is detachably connected with the positioning seat, the supporting seat comprises a first connecting plate and a second connecting plate, the first connecting plate and the second electric cylinder are located on the same side face of the positioning seat, one end of the first connecting plate is connected with the telescopic shaft on the second electric cylinder, the other end of the first connecting plate is fixedly connected with the second connecting plate to form an L-shaped structure, the second connecting plate corresponds to one end, close to the mounting column, of the positioning seat, the limiting shaft is fixedly connected with one side of the second connecting plate, the first electric cylinder is detachably mounted on the other side, corresponding to the second connecting plate, of the first electric cylinder, and the telescopic shaft on the first electric cylinder sequentially penetrates through the second connecting plate and one end of the sealing cavity to be connected with the piston. Before preparing to get into the welding process, control system once more controls electric jar work, make the telescopic shaft on the electric jar one drive piston reverse movement, gas in the gasbag is taken sealed intracavity out again, the gasbag volume diminishes and contracts to in the recess two, the gag lever post rotates downwards and is located recess one under the effect of torsional spring this moment, be convenient for control system control electric jar two work and drive the support seat to move to one side of erection column, take spacing axle out, thereby make the gasbag keep away from the high temperature region, the protection gasbag is not destroyed by the high temperature on the hot plate, be favorable to increase of service life.

The invention has the beneficial effects that: the heating plate uniformly heats the welding wire in a surface contact mode instead of a traditional welding gun point contact mode, so that the melting rate of the welding wire is improved, the aim of in-place welding is fulfilled, and the welding quality is improved; the position accuracy and the welding quality of welding are ensured and improved; the application range is wide, and the practicability is strong; is beneficial to protecting the personal safety; the design is reasonable; the service life is prolonged.

Drawings

FIGS. 1 and 5 are schematic structural views of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

FIG. 4 is a top view of the weld stack of FIG. 1;

FIG. 6 is an enlarged view of the structure at C in FIG. 5;

FIG. 7 is an enlarged view of the structure of FIG. 5 at D;

FIG. 8 is an enlarged view of the structure at E in FIG. 5;

FIG. 9 is a schematic view of the support base;

fig. 10 is a top view of fig. 9.

In the figure: 1. the welding machine comprises a driving motor, 2, a rotating table, 3, a base, 4, a welding assembly, 5, a workpiece positioning seat, 6, a base, 7, a control box, 8, a heating pipe, 9, a heating plate, 10, a mounting seat, 11, a first pipe body, 12, a second pipe body, 13, a welding wire, 14, a bottom plate, 15, a positioning seat, 16, a V-shaped groove, 17, a mounting column, 18, a positioning assembly, 19, a first supporting block, 20, a second supporting block, 21, a third supporting block, 22, an adjusting column, 23, a limiting sheet, 24, a first limiting groove, 25, a rotating groove, 26, a first limiting block, 27, a second limiting groove, 28, a connecting rod, 29, a pressing wheel, 30, a long bolt, 31, a locking nut, 32, a second limiting block, 33, a ball screw rod stepping motor, 34, a sliding rail, 35, a sliding block and 36, a universal joint pipe, 37. the water outlet, 38, a support seat, 39, a limiting shaft, 40, a through hole, 41, a first groove, 42, a second groove, 43, an air bag, 44, a limiting rod, 45, a first electric cylinder, 46, a sealing cavity, 47, a piston, 48, a vent pipe, 49, an action block, 50, an arc-shaped bracket, 51, a second electric cylinder, 52, a first connecting plate and 53, and a second connecting plate.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

In the embodiment shown in fig. 1 and 5, an automatic welding device comprises a driving motor 1, a rotating table 2, a base 3 and a welding assembly 4, wherein an output shaft of the driving motor 1 is connected with the center of the bottom of the rotating table 2, the rotating table 2 is arranged on the base 3 and is rotationally connected with the base 3 under the driving of the driving motor 1, a plurality of workpiece positioning seats 5 are arranged on the top of the rotating table 2, the plurality of workpiece positioning seats 5 form a circular ring shape by taking the driving motor 1 as the center, the welding assembly 4 is arranged on the side surface of the rotating table 2, the welding assembly 4 comprises a base 6 and a control box 7, one end of the base 6 is close to the rotating table 2, the other end of the base 6 is far away from the rotating table 2, the control box 7 is arranged on the base 6, the control box 7 can slide towards the other end along one end of the base 6, a plurality of heating pipes 8 are arranged on the control box 7, one end of the heating pipes 8 is arranged on the control box 7, the other end of the heating pipe 8 is provided with a heating plate 9 corresponding to one of the workpiece positioning seats 5, and the heating plate 9 is electrically connected with the control box 7 through the heating pipe 8.

As shown in fig. 1, 2 and 5, the workpiece positioning seat 5 includes a mounting seat 10, a first tube 11, a second tube 12 and a welding wire 13, the bottom of the mounting seat 10 is detachably mounted on the rotating table 2, a bottom plate 14 is disposed on the top of the mounting seat 10, the bottom plate 14 is detachably connected to the mounting seat 10, one end of the bottom plate 14 is close to the driving motor 1, the other end of the bottom plate 14 is far away from the driving motor 1, a positioning seat 15 is disposed on one end of the bottom plate 14 far away from the driving motor 1, the bottom of the positioning seat 15 is fixedly connected to the bottom plate 14, a V-shaped groove 16 is disposed on the top of the positioning seat 15, the first tube 11 is disposed in the V-shaped groove 16, one end of the bottom plate 14 close to the driving motor 1 is provided with two parallel mounting posts 17, the mounting posts 17 are fixedly connected to the bottom plate 14, a positioning assembly 18 is disposed on the mounting posts 17, the second tube 12 is positioned on the mounting posts 17 through the positioning assembly 18, an end of the welding wire 13 is disposed on the first tube 11, and is communicated with the inside of the first pipe body 11, and the position of the heating plate 9 corresponds to the position of the welding wire 13.

As shown in fig. 1 and 5, the positioning assembly 18 includes a first supporting block 19, a second supporting block 20 and a third supporting block 21, the first supporting block 19, the second supporting block 20 and the third supporting block 21 are sequentially distributed on the mounting posts 17 from bottom to top, two ends of the first supporting block 19 are respectively and fixedly connected with the two mounting posts 17, the first supporting block 19 is provided with an adjusting post 22, one end of the adjusting post 22 is in threaded connection with the first supporting block 19, the other end of the adjusting post 22 is provided with a limiting piece 23, one end of the limiting piece 23 is fixedly connected with the adjusting post 22, one side of the second pipe body 12 is close to the mounting posts 17, the other side of the second pipe body 12 corresponding to the second pipe body 12 is far away from the mounting posts 17, as shown in fig. 3 and 6, the other end of the limiting piece 23 is provided with a first limiting groove 24 matched with one side of the second pipe body 12 close to the mounting posts 17, one end of the second supporting block 20 is respectively and fixedly connected with the two mounting posts 17, and the other end of the second supporting block 20 is provided with a rotating groove 25, a first limiting block 26 is arranged in the rotating groove 25, one side of the first limiting block 26 is rotatably connected with the rotating groove 25, a second limiting groove 27 matched with one side, close to the mounting column 17, of the second pipe body 12 is arranged on the other side, corresponding to the first limiting block 26, as shown in fig. 1 and 5, the third supporting block 21 is located on the side face of the second pipe body 12, one end of the third supporting block 21 is fixedly connected with one of the mounting columns 17, a connecting rod 28 is arranged at the other end of the third supporting block 21, one end of the connecting rod 28 is in shaft connection with the third supporting block 21 through a torsion spring, a pressing wheel 29 is arranged at the other end of the connecting rod 28, the pressing wheel 29 is located between the limiting piece 23 and the first limiting block 26, and the pressing wheel 29 is in contact with one side, far away from the mounting column 17, of the second pipe body 12.

As shown in fig. 1 and 5, a long bolt 30 is arranged in the rotating groove 25, the first stopper 26 is rotatably connected with the rotating groove 25 through the long bolt 30, a lock nut 31 is arranged on the long bolt 30, and the long bolt 30 sequentially penetrates through one side of the rotating groove 25, the first stopper 26 and the other side of the rotating groove 25 to be in threaded connection with the lock nut 31.

As shown in fig. 1, 4 and 5, the number of the heating pipes 8 is two, the two heating pipes 8 are respectively located at the left side and the right side of the first pipe body 11, the plane where the heating pipes 8 are located is parallel to the first pipe body 11, and the heating plates 9 on the two heating pipes 8 are respectively located at the left side and the right side of the welding wire 13.

As shown in fig. 1, 4 and 5, one end of the base 6 is provided with a second limiting block 32, the other end of the base 6 is provided with a ball screw stepping motor 33, an output shaft of the ball screw stepping motor 33 is connected with the control box 7, the base 6 is provided with a slide rail 34 parallel to the output shaft of the ball screw stepping motor 33, the end of the slide rail 34 is connected with the second limiting block 32, the control box 7 is provided with a slide block 35 matched with the slide rail 34, and the control box 7 is matched with the base 6 through the slide block 35 and the slide rail 34 under the driving of the ball screw stepping motor 33 and is in sliding connection with the base 6.

As shown in fig. 1 and 5, two universal bamboo joint pipes 36 are arranged above the second pipe body 12 on the other workpiece positioning seat 5, one end of each universal bamboo joint pipe 36 is communicated with an external water pipe, the other end of each universal bamboo joint pipe 36 is provided with a water outlet 37 corresponding to the welding wire 13, and the positioning seat 15 is located below the second pipe body 12.

As shown in fig. 5, one end of the positioning seat 15 is close to the mounting post 17, the other end of the positioning seat 15 is far away from the mounting post 17, one end of the positioning seat 15 close to the mounting post 17 is provided with a supporting seat 38, as shown in fig. 6, 7 and 8, the supporting seat 38 is provided with a limiting shaft 39 matched with the inside of the first tube body 11, the first tube body 11 is provided with a through hole 40 communicated with the inside of the second tube body 12, the welding wire 13 is in a ring shape, the inner diameter of the welding wire 13 is the same as that of the through hole 40, the welding wire 13 is arranged on the through hole 40, the central axis of the welding wire is the same as that of the through hole 40, the limiting shaft 39 is provided with a first groove 41 corresponding to the through hole 40, the center of the bottom of the first groove 41 is provided with a second groove 42, the second groove 42 is provided with an air bag 43, the side wall of the first groove 41 is provided with a plurality of uniformly distributed limiting rods 44, one end of the limiting rods 44 is coupled with the side wall of the first groove 41 through a torsion spring, the other end of the limiting rod 44 is in contact with the inner side wall of the welding wire 13, the limiting shaft 39 is fixedly connected to one side of the supporting seat 38, the other side, corresponding to the supporting seat 38, is provided with a first electric cylinder 45, a sealing cavity 46 is arranged in the limiting shaft 39, a piston 47 is arranged in the sealing cavity 46, a telescopic shaft on the first electric cylinder 45 sequentially penetrates through the supporting seat 38 and one end of the sealing cavity 46 to be connected with the piston 47, the other end of the sealing cavity 46 is provided with a ventilating pipe 48, one end of the ventilating pipe 48 is communicated with the sealing cavity 46, the other end of the ventilating pipe 48 penetrates through the center of the bottom of the second groove 42 to be identical to the inside of the air bag 43, and the air bag 43 is in contact with the limiting rods 44 respectively.

As shown in fig. 8, the other end of the limiting rod 44 is provided with an action block 49, the action block 49 is located on one side of the limiting rod 44, one end of the action block 49 is fixedly connected with the limiting rod 44, the other end of the action block 49 is arc-shaped and contacts with the inner side wall of the welding wire 13, one end of the vent pipe 48, penetrating through the center of the bottom of the groove two 42, is provided with a plurality of arc-shaped brackets 50, the arc-shaped brackets 50 are uniformly distributed on the outer side wall of the vent pipe 48 along the circumferential direction of the vent pipe 48, the arc-shaped brackets 50 are fixedly connected with the vent pipe 48, the air bag 43 is fixedly connected with the end of the vent pipe 48 and located on the arc-shaped brackets 50, and the air bag 43 contacts with the other corresponding side of the limiting rods 44.

As shown in fig. 1, 5, 6, 9 and 10, a second electric cylinder 51 is disposed on a side surface of the positioning seat 15, the second electric cylinder 51 is detachably connected to the positioning seat 15, the supporting seat 38 includes a first connecting plate 52 and a second connecting plate 53, the first connecting plate 52 and the second electric cylinder 51 are disposed on the same side surface of the positioning seat 15, one end of the first connecting plate 52 is connected to an expansion shaft on the second electric cylinder 51, the other end of the first connecting plate 52 is fixedly connected to the second connecting plate 53 and forms an L-shaped structure, the second connecting plate 53 corresponds to one end of the positioning seat 15 close to the mounting post 17, the limiting shaft 39 is fixedly connected to one side of the second connecting plate 53, the first electric cylinder 45 is detachably mounted to the other side corresponding to the second connecting plate 53, and the expansion shaft on the first electric cylinder 45 sequentially penetrates through the second connecting plate 53 and one end of the sealing cavity 46 to be connected to the piston 47.

The invention is mainly used for welding the faucet pipe fitting, the second pipe body 12 can be a straight pipe or a bent pipe, and the second pipe body 12 is welded on the first pipe body 11. An operator firstly places the first pipe body 11 in the V-shaped groove 16 and sleeves the first pipe body 11 on the limiting shaft 39, then places the welding wire 13 at the through hole 40 on the first pipe body 11, finally the operator upwards opens the pressing wheel 29, presses the end part of the second pipe body 12 against the first pipe body 11 through the welding wire 13, places one side of the second pipe body 12 close to the mounting column 17 in the first limiting groove 24 and the second limiting groove 27, then downwards rotates the pressing wheel 29 to enable the pressing wheel to abut against one side of the second pipe body 12 far away from the mounting column 17, enables the second pipe body 12 to be positioned, and at the moment, the first pipe body 11 and the welding wire 13 are preliminarily positioned; the control system controls the first electric cylinder 45 to work, the telescopic shaft on the first electric cylinder 45 drives the piston 47 to move, air in the sealed cavity 46 is compressed into the air bag 43 through the vent pipe 48, the air bag 43 is spherical when the volume is increased and overcomes the acting force of the torsion spring to drive the limiting rod 44 to rotate upwards until the end part of the limiting rod 44 is contacted with the inner side wall of the welding wire 13, in the process, the volume of the air bag 43 is increased, and the air bag 43 can drive the first tube body 11 to move, so that the center of the first groove 41 is positioned on the central axis of the through hole 40, the first pipe body 11 can automatically correct the position under the action of the air bag 43, the center of the first groove 41 is always on the central axis of the through hole 40 or the central axis of the welding wire 13, the welding wire 13 is ensured to correspond to the through hole 40, the welding wire 13 and the first pipe body 11 are secondarily positioned, and the welding quality is improved.

The control system controls the driving motor 1 to work, the rotating table 2 is driven by the driving motor 1 to rotate, the faucet pipe fitting is driven to rotate to the position corresponding to the welding assembly, before the faucet pipe fitting is ready to enter a welding process, the control system controls the first electric cylinder 45 to work again, the telescopic shaft on the first electric cylinder 45 drives the piston 47 to move reversely, gas in the air bag 43 is pumped out into the sealing cavity 46 again, the air bag 43 is reduced in size and contracted into the second groove, the limiting rod 44 rotates downwards under the action of the torsion spring and is located in the first groove 41, the control system conveniently controls the second electric cylinder 51 to work and drives the supporting seat 38 to move towards one side of the mounting column 17, the limiting shaft 39 is pumped out, and therefore the air bag 43 is far away from the high-temperature area.

During welding, the control system controls the control box 7 to move to one side of the rotating table 2, so that the position of the heating plate 9 is right corresponding to the position of the welding wire 13, then the control system controls the control box 7 to work, the heating plate 9 is conducted by the heating pipe 8, the heating plate 9 reaches the heating temperature required by welding, at the moment, the control system controls the ball screw stepping motor 33 to drive the control box 7 to move back and forth at a constant speed within a certain range, the welding wire 13 can be uniformly heated by the heating plate 9, the welding wire is melted to be welded, after the welding is finished, the control system controls the ball screw stepping motor 33 to drive the control box 7 to move reversely, and the driving motor 1 is controlled to rotate again, and the faucet pipe fitting on the next workpiece positioning seat 5 can be conveniently welded.

Because the welded water tap pipe fitting still has higher temperature, so cold water spouts the welding department through the delivery port 37 on the universal bamboo joint pipe 36, helps the rapid cooling of water tap pipe fitting, and the operator of being convenient for takes off it from work piece positioning seat 5, protects personal safety.

Claims

1. The automatic welding equipment is characterized by comprising a driving motor (1), a rotating platform (2), a base (3) and a welding assembly (4), wherein an output shaft of the driving motor (1) is connected with the center of the bottom of the rotating platform (2), the rotating platform (2) is arranged on the base (3) and is rotationally connected with the base (3) under the driving of the driving motor (1), a plurality of workpiece positioning seats (5) are arranged at the top of the rotating platform (2), the plurality of workpiece positioning seats (5) form a circular ring type by taking the driving motor (1) as the center, the welding assembly (4) is positioned on the side surface of the rotating platform (2), the welding assembly (4) comprises a base (6) and a control box (7), one end of the base (6) is close to the rotating platform (2), the other end of the base (6) is far away from the rotating platform (2), and the control box (7) is positioned on the base (6), the control box (7) can slide towards the other end along one end of the base (6), a plurality of heating pipes (8) are arranged on the control box (7), one ends of the heating pipes (8) are installed on the control box (7), the other ends of the heating pipes (8) are provided with heating plates (9) corresponding to one of the workpiece positioning seats (5), the heating plates (9) are electrically connected with the control box (7) through the heating pipes (8), each workpiece positioning seat (5) comprises a mounting seat (10), a first pipe body (11), a second pipe body (12) and a welding wire (13), the bottom of the mounting seat (10) is detachably installed on the rotating table (2), a bottom plate (14) is arranged at the top of the mounting seat (10), the bottom plate (14) is detachably connected with the mounting seat (10), one end of the bottom plate (14) is close to the driving motor (1), and the other end of the bottom plate (14) is far away from the driving motor (1), one end, far away from the driving motor (1), of the bottom plate (14) is provided with a positioning seat (15), the bottom of the positioning seat (15) is fixedly connected with the bottom plate (14), a V-shaped groove (16) is formed in the top of the positioning seat (15), the first pipe body (11) is arranged in the V-shaped groove (16), one end, close to the driving motor (1), of the bottom plate (14) is provided with two mounting columns (17) which are parallel to each other, the mounting columns (17) are fixedly connected with the bottom plate (14), positioning assemblies (18) are arranged on the mounting columns (17), the second pipe body (12) is positioned on the mounting columns (17) through the positioning assemblies (18), the end portions of the second pipe body (12) are arranged on the first pipe body (11) through welding wires (13) and are communicated with the inside of the first pipe body (11), the position of the heating plate (9) corresponds to the position of the welding wires (13), one end of the positioning seat (15) is close to the mounting columns (17), the other end of the positioning seat (15) is far away from the mounting column (17), one end, close to the mounting column (17), of the positioning seat (15) is provided with a supporting seat (38), a limiting shaft (39) matched with the inside of the first pipe body (11) is arranged on the supporting seat (38), the first pipe body (11) is provided with a through hole (40) communicated with the inside of the second pipe body (12), the welding wire (13) is in a ring shape, the inner diameter of the welding wire (13) is the same as that of the through hole (40), the welding wire (13) is arranged on the through hole (40), the central axis of the welding wire and the central axis of the through hole (40) are the same axis, a first groove (41) corresponding to the through hole (40) is arranged in the limiting shaft (39), the bottom center of the first groove (41) is provided with a second groove (42), an air bag (43) is arranged in the second groove (42), and a plurality of uniformly distributed limiting rods (44) are arranged on the side wall of the first groove (41), one end of the limiting rod (44) is in shaft connection with the side wall of the first groove (41) through a torsion spring, the other end of the limiting rod (44) is in contact with the inner side wall of the welding wire (13), the limiting shaft (39) is fixedly connected to one side of the supporting seat (38), the other side, corresponding to the supporting seat (38), is provided with a first electric cylinder (45), a sealing cavity (46) is arranged in the limiting shaft (39), a piston (47) is arranged in the sealing cavity (46), a telescopic shaft on the first electric cylinder (45) sequentially penetrates through one ends of the supporting seat (38) and the sealing cavity (46) to be connected with the piston (47), a vent pipe (48) is arranged at the other end of the sealing cavity (46), one end of the vent pipe (48) is communicated with the sealing cavity (46), and the other end of the vent pipe (48) penetrates through the bottom center of the second groove (42) to be identical to the inside of the air bag (43), the air bag (43) is respectively contacted with a plurality of limiting rods (44), one end of the base (6) is provided with a second limiting block (32), the other end of the base (6) is provided with a ball screw stepping motor (33), an output shaft of the ball screw stepping motor (33) is connected with the control box (7), the base (6) is provided with a sliding rail (34) parallel to an output shaft of the ball screw stepping motor (33), the end part of the sliding rail (34) is connected with the second limiting block (32), the control box (7) is provided with a sliding block (35) matched with the sliding rail (34), and the control box (7) is matched with the base (6) in a sliding manner through the sliding block (35) and the sliding rail (34) under the driving of the ball screw stepping motor (33).

2. The automatic welding equipment of claim 1, wherein the positioning assembly (18) comprises a first supporting block (19), a second supporting block (20) and a third supporting block (21), the first supporting block (19), the second supporting block (20) and the third supporting block (21) are sequentially distributed on the mounting columns (17) from bottom to top, two ends of the first supporting block (19) are respectively and fixedly connected with the two mounting columns (17), an adjusting column (22) is arranged on the first supporting block (19), one end of the adjusting column (22) is in threaded connection with the first supporting block (19), the other end of the adjusting column (22) is provided with a limiting piece (23), one end of the limiting piece (23) is fixedly connected with the adjusting column (22), one side of the second pipe body (12) is close to the mounting columns (17), and the other corresponding side of the second pipe body (12) is far away from the mounting columns (17), the other end of the limiting piece (23) is provided with a first limiting groove (24) matched with one side, close to the mounting columns (17), of the second pipe body (12), one end of the second supporting block (20) is fixedly connected with the two mounting columns (17) respectively, the other end of the second supporting block (20) is provided with a rotating groove (25), a first limiting block (26) is arranged in the rotating groove (25), one side of the first limiting block (26) is rotatably connected with the rotating groove (25), the other side, corresponding to the first limiting block (26), of the second pipe body (12) is provided with a second limiting groove (27) matched with one side, close to the mounting columns (17), of the second pipe body (12), the third supporting block (21) is located on the side face of the second pipe body (12), one end of the third supporting block (21) is fixedly connected with one of the mounting columns (17), the other end of the third supporting block (21) is provided with a connecting rod (28), one end of the connecting rod (28) is connected with the third supporting block (21) through a torsion spring in a shaft manner, the other end of connecting rod (28) is equipped with pinch roller (29), pinch roller (29) are located between spacing piece (23) and spacing piece (26), pinch roller (29) and body two (12) keep away from the one side contact of erection column (17).

3. The automatic welding device according to claim 2, characterized in that a long bolt (30) is arranged in the rotating groove (25), the first limiting block (26) is rotatably connected with the rotating groove (25) through the long bolt (30), a locking nut (31) is arranged on the long bolt (30), and the long bolt (30) penetrates through one side of the rotating groove (25), the first limiting block (26) and the other side of the rotating groove (25) in sequence to be in threaded connection with the locking nut (31).

4. An automatic welding device according to claim 1, characterized in that the number of the heating pipes (8) is two, the two heating pipes (8) are respectively located at the left and right sides of the first pipe body (11), the plane where the heating pipes (8) are located is parallel to the first pipe body (11), and the heating plates (9) on the two heating pipes (8) are respectively located at the left and right sides of the welding wire (13).

5. The automatic welding equipment of claim 1, wherein two universal bamboo joint pipes (36) are arranged above the second pipe body (12) on the other workpiece positioning seat (5), one end of each universal bamboo joint pipe (36) is communicated with an external water pipe, the other end of each universal bamboo joint pipe (36) is provided with a water outlet (37) corresponding to the welding wire (13), and the positioning seat (15) is positioned below the second pipe body (12).

6. Automatic welding equipment according to claim 5, characterized in that the other end of the limiting rod (44) is provided with an action block (49), the action block (49) is positioned at one side of the limiting rod (44), one end of the action block (49) is fixedly connected with the limiting rod (44), the other end of the action block (49) is arc-shaped and is contacted with the inner side wall of the welding wire (13), one end of the vent pipe (48) penetrating through the center of the bottom of the second groove (42) is provided with a plurality of arc-shaped brackets (50), the arc-shaped brackets (50) are uniformly distributed on the outer side wall of the vent pipe (48) along the circumferential direction of the vent pipe (48), the arc-shaped bracket (50) is fixedly connected with the vent pipe (48), the air bag (43) is fixedly connected with the end part of the vent pipe (48) and is positioned on the arc-shaped bracket (50), the air bags (43) are respectively contacted with the other sides corresponding to the limiting rods (44).

7. The automatic welding equipment of claim 5, characterized in that a second electric cylinder (51) is arranged on the side surface of the positioning seat (15), the second electric cylinder (51) is detachably connected with the positioning seat (15), the supporting seat (38) comprises a first connecting plate (52) and a second connecting plate (53), the first connecting plate (52) and the second electric cylinder (51) are positioned on the same side surface of the positioning seat (15), one end of the first connecting plate (52) is connected with an expansion shaft on the second electric cylinder (51), the other end of the first connecting plate (52) is fixedly connected with the second connecting plate (53) and forms an L-shaped structure, the second connecting plate (53) corresponds to one end, close to the mounting column (17), of the positioning seat (15), the limiting shaft (39) is fixedly connected with one side of the second connecting plate (53), the first electric cylinder (45) is detachably mounted on the other corresponding side of the second connecting plate (53), and the telescopic shaft on the first electric cylinder (45) penetrates through the second connecting plate (53) and one end of the sealing cavity (46) in sequence to be connected with the piston (47).