An automatic column bending and welding device and bending and welding process

Abstract

The invention relates to an automatic column bending and welding device and a bending and welding process. The device comprises a conveying and shaping module, a bending and feeding module, a welding module, a blanking and shaping module and a control system. The conveying and shaping module is used to convey the future material to the bending and feeding module, the bending and feeding module is used to clamp the future material and perform positioning and bending forming, the welding module is used to weld the bent and formed pipe seal, the blanking and shaping module is used to shape the product after bending and welding to a preset size and then output it, and the control system is simultaneously connected with the conveying and shaping module, the bending and feeding module, the welding module and the blanking and shaping module to realize driving and control of the entire system. The invention not only saves labor but also can ensure the quality of standardized products.

Description

Technical Field

[0001] The invention relates to an automatic column bending welding device and a bending welding process, belonging to the field of novel automatic feeding bending welding equipment. Background Art

[0002] With the development of the times and the improvement of people's living standards, the demand for products has also greatly increased. The existing welding of similar products is mainly manual and semi-manual welding. Usually, four people are needed to weld the product. Not only is the work efficiency low, the labor intensity of the workers is high, but also the quality of standardized products is low. Summary of the invention

[0003] The invention provides an automatic column bending welding device and a bending welding process, which not only saves labor but also can ensure the quality of standardized products.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] An automatic column bending and welding device comprises a conveying and shaping module, a bending and feeding module, a welding module, a blanking and shaping module and a control system;

[0006] The conveying and shaping module is used to convey the incoming materials to the bending and loading module. The bending and loading module is used to clamp the incoming materials and perform positioning and bending. The welding module is used to weld the bent and formed pipe seals. The blanking and shaping module is used to shape the products that have been bent and welded to a preset size and then output them. The control system is simultaneously connected with the conveying and shaping module, the bending and loading module, the welding module, and the blanking and shaping module to realize the drive and control of the entire system.

[0007] As a further preferred embodiment of the present invention, the aforementioned conveying and shaping module includes a reduction motor, which is fixedly mounted on an angle aluminum bracket, and a plurality of sprockets are arranged on one side of the angle aluminum bracket relative to the bending and feeding module, and the output shaft of the reduction motor is connected to an adjacent sprocket, and the plurality of sprockets are connected by a chain;

[0008] A conveying connection plate is installed on the other side of the angle aluminum bracket. Several rollers are arranged on the conveying connection plate. The rollers match the corresponding sprockets. The movement of the chain drives the sprockets to roll, thereby driving the rollers to rotate.

[0009] A plurality of guide plate groups are vertically mounted on the conveying connection plate, each guide plate group includes two guide plates arranged opposite to each other, and the guide plate group is located between two rollers, and also includes a conveying guide rod, which is penetrated by an angle aluminum bracket and abuts against the conveying connection plate; a lifting cylinder is fixed to the bottom of the angle aluminum bracket, and a lifting cylinder head is vertically fixed to the conveying connection plate;

[0010] As a further preferred embodiment of the present invention, a blocking positioning plate and a feed port support plate are respectively installed at both ends of the angle aluminum bracket, the blocking positioning plate is adjacent to the reduction motor, the feed port is installed on the feed port support plate, the feed port protrudes from the feed port support plate, a conveying cylinder is arranged at the bottom of the feed port, and the conveying cylinder rod is against the feed port;

[0011] A protective cover is also installed on the angle aluminum bracket, and the protective cover is set on the roller;

[0012] As a further preferred embodiment of the present invention, the aforementioned bending and feeding module includes a welding frame, and the angle aluminum bracket is fixed to the side wall of the welding frame through a frame connecting plate;

[0013] An aluminum profile bracket is installed on the welding frame, a rodless cylinder is installed on the aluminum profile bracket, two table plates are installed on the top of the welding frame, a gap is provided between the two table plates, a bending and feeding finger cylinder is connected to the rodless cylinder through the bending and feeding finger cylinder bracket, and the bending and feeding finger cylinder is located above the gap between the two table plates;

[0014] Install guide sheet metals on the two tabletops near the angle aluminum brackets, install clamping cylinders on the tabletops on both sides of the spacing, install guide bearings on both sides of the clamping cylinders, and install positioning blocks on the tabletops away from the guide sheet metals;

[0015] As a further preferred embodiment of the present invention, adjustable feet are installed at the bottom of the four frame feet of the welding frame;

[0016] As a further preferred embodiment of the present invention, the aforementioned welding module includes a wire feeding device, a welding device and a gas feeding device.

[0017] The welding device comprises a welding bracket, a welding gun is mounted on the welding bracket, a welding bracket is slidably connected to each other on both sides of the linear module, a welding servo motor is installed at the bottom end of the linear module, and a linear module connecting plate is installed on the side wall of the linear module located between the two welding brackets, which is slidably connected to the bottom of the upper fixed plate through a guide rail auxiliary slider, wherein the upper fixed plate is located between the two welding guns;

[0018] A welding cylinder is also installed at the bottom of the upper fixed plate, and the piston rod of the welding cylinder is connected to the linear module connecting plate. When the welding cylinder is started, the linear module connecting plate moves on the upper fixed plate through the guide rail auxiliary slider;

[0019] The wire feeding device is a wire feeding machine, and the mixed gas is arranged in the gas feeding device;

[0020] As a further preferred embodiment of the present invention, the aforementioned blanking and shaping module includes a blanking servo motor, which is mounted on a bracket plate, and the bracket plate is mounted on the end of the aluminum profile bracket through a pulley connecting plate, and the motor shaft of the blanking servo motor is connected to a synchronous pulley, and a driven wheel bracket is mounted on the driven wheel bracket at the other end of the aluminum profile bracket through a pulley connecting plate, and the driven wheel is mounted on the driven wheel bracket, and the synchronous pulley and the driven wheel are connected through a synchronous belt;

[0021] One end of the synchronous belt connecting plate is installed on the synchronous belt, and the other end thereof is fixed to the surface of the blanking connecting plate. A blanking cylinder and four blanking guide rods are also installed on the blanking connecting plate. The four blanking guide rods are located at the four corners of the blanking connecting plate, and the four blanking guide rods are respectively connected to the surface of the finger cylinder connecting plate after passing through the blanking connecting plate through linear bearings. The blanking cylinder is fixed to the blanking connecting plate through a cylinder fixing plate. When the blanking cylinder is started, the blanking guide rod drives the blanking connecting plate to move up and down reciprocatingly under the constraint of the linear bearing.

[0022] The shaping cylinders are installed at the four corners of the bottom of the blanking connection plate. The reciprocating shaft of each shaping cylinder is connected to the blanking finger cylinder. The blanking guide rail is installed at the bottom of the blanking connection plate. Each blanking finger cylinder is matched and connected to the blanking guide rail through the blanking slider. The blanking finger cylinder is started to drive the blanking finger cylinder to clamp or loosen the products that have been bent and welded for external support shaping.

[0023] Install guard plates on both sides of the finger cylinder connecting plate;

[0024] As a further preferred embodiment of the present invention, the aforementioned control system includes a PLC control cabinet, which is connected to the entire system, and also includes an operation display screen, which displays information in real time on the operation display screen;

[0025] A bending welding process based on the automatic column bending welding device described above, the operator presses the start button to start the PLC control cabinet, the whole system enters the operation mode, the jacking cylinder in the conveying shaping module rises to drive the conveying connecting plate to rise within the constraint range of the conveying guide rod, the reduction motor is started, which drives the adjacent sprocket to rotate, the sprocket drives the sprocket of the whole system to rotate through the chain, and the sprocket rotates and drives the roller matched with it to rotate, the incoming material enters through the feed port, the roller rotates and drives the incoming material to be conveyed forward until it is restricted by the blocking positioning plate; the conveying cylinder is started, the feed port is rotated to drive the incoming material to rotate 90 degrees;

[0026] After the incoming material is turned over, the fingers of the bending and feeding finger cylinder clamp the incoming material from opening to closing, the lifting cylinder descends to drive the conveying connecting plate to descend, the rodless cylinder starts, and the bending and feeding finger cylinder pulls the incoming material through two guide sheet metals to be constrained to the bending state. When the incoming material reaches the positioning block, the positioning and bending forming is completed. At this time, the conveying cylinder moves again, and the cylinder rod of the conveying cylinder resets the feed port. The clamping cylinder starts to clamp the product after positioning and bending. The rodless cylinder sends a release command to the bending and feeding finger cylinder, and the rodless cylinder resets.

[0027] Next, the welding servo motor starts to raise the two welding guns to the specified position, the welding cylinder retreats to drive the welding guns close to the product, the welding machine, wire feeder and gas supply device are started to weld the product, and after welding is completed, the welding cylinder is reset to push the welding guns out, and the welding servo motor is started to lower and reset the welding guns, completing the entire welding action;

[0028] Finally, start the unloading cylinder, push the unloading finger cylinder in the open state toward the product, close the fingers of the unloading finger cylinder to clamp the product, and the unloading cylinder drives the unloading finger cylinder to rise to the specified position again; the unloading servo motor starts and moves the unloading finger cylinder that clamps the product to the unloading position. At this time, the unloading finger cylinder receives the release command and drops the bent and welded product to the specified position. Finally, the unloading finger cylinder returns to the waiting position.

[0029] Through the above technical solution, compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The whole system of the present invention adopts PLC control, which is simple and reliable;

[0031] 2. The equipment provided by the present invention only requires one operator to operate the entire production line, which greatly reduces labor costs;

[0032] 3. In the system provided by the present invention, the driving device is a reduction motor, a servo motor and a cylinder, etc., which has the characteristics of fast conveying speed and accurate positioning accuracy, thereby improving production efficiency;

[0033] 4. The equipment provided by the present invention can be connected with other sawing and cutting equipment, V-cutting equipment and drilling and tapping equipment, realizing the automation of the entire production line, which can be completed by a single person. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0035] Figure 1 It is a schematic diagram of the overall structure provided by the present invention;

[0036] Figure 2 It is a front view of the conveying and shaping module in the preferred embodiment provided by the present invention;

[0037] Figure 3 is a side view of a conveying and shaping module in a preferred embodiment provided by the present invention;

[0038] Figure 4 It is a schematic diagram of the structure of the bending and feeding module in the preferred embodiment provided by the present invention;

[0039] Figure 5 It is a structural schematic diagram of a welding module with respect to a welding device in a preferred embodiment provided by the present invention;

[0040] Figure 6 is a side view of a welding module with respect to a welding device in a preferred embodiment provided by the present invention;

[0041] Figure 7 It is a schematic diagram of the structure of the blanking and shaping module in the preferred embodiment provided by the present invention.

[0042] In the figure: 1 is a reduction motor, 2 is a protective cover, 3 is a blocking positioning plate, 4 is a roller, 5 is a conveying connecting plate, 6 is a conveying guide rod, 7 is an angle aluminum bracket, 8 is a guide plate, 9 is a lifting cylinder, 10 is a conveying cylinder, 11 is a feed port, 12 is a feed port support plate, 13 is a sprocket, 14 is a chain, 15 is a frame connecting plate, 21 is an aluminum profile bracket, 22 is a welding frame, 23 is a guide sheet metal, 24 is a bending and feeding finger cylinder bracket, 25 is a bending and feeding finger cylinder, 26 is a rodless cylinder, 27 is a clamping cylinder, 28 is a positioning block, 29 is a guide bearing, 30 is an adjustment foot, 31 is a table, 41 is a wire feeder, 42 is a welding machine, 43 is a mixed gas, 44 is a welding gun, 45 is a welding bracket, 46 is a welding bracket, 47 is a welding bracket, 48 is a welding bracket, 49 is a welding bracket, 50 is a welding bracket, 51 is a welding bracket, 52 is a welding bracket, 53 is a welding bracket, 54 is a welding bracket, 55 is a welding bracket, 56 is a welding bracket, 57 is a welding bracket, 58 is a welding bracket, 59 is a welding bracket, 60 is a welding bracket, 61 is a welding bracket, 62 is a welding bracket, 63 is a welding bracket, 64 is a welding bracket, 65 is a welding bracket, 66 is a welding bracket, 67 is a welding bracket, 68 is a welding bracket, 69 is a welding bracket, 70 is a welding bracket, 71 is a welding bracket, 72 is a welding bracket, 73 is a welding bracket, 74 is a welding bracket, 75 is a welding bracket, 76 is a welding bracket 6 is an upper fixed plate, 47 is a welding cylinder, 48 is a linear module, 49 is a welding servo motor, 50 is a guide rail auxiliary slider, 51 is a linear module connecting plate, 61 is a pulley connecting plate, 62 is a feeding servo motor, 63 is a bracket plate, 64 is a synchronous pulley, 65 is a synchronous belt, 66 is a finger of the feeding finger cylinder, 67 is a product, 68 is a feeding finger cylinder, 69 is a feeding guide rail, 70 is a feeding slider, 71 is a finger cylinder connecting plate, 72 is a shaping cylinder, 73 is a linear bearing, 74 is a cylinder fixed plate, 75 is a feeding cylinder, 76 is a driven wheel, 77 is a driven wheel bracket, 78 is a pulley connecting plate, 79 is a feeding guide rod, 80 is a synchronous belt connecting plate, 81 is a feeding connecting plate, and 82 is a guard plate. DETAILED DESCRIPTION

[0043] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0044] In order to solve the problems in the background technology, the present application aims to provide an automatic column bending and welding device, which is mainly composed of five parts, including a conveying and shaping module, a bending and loading module, a welding module, a blanking and shaping module and a control system; wherein, the conveying and shaping module is used to convey the future material to the bending and loading module and flip the angle, the bending and loading module is used to clamp the future material and perform positioning and bending, the welding module is used to weld the bent and formed pipe seal, the blanking and shaping module is used to shape the product that has completed bending and welding to a preset size and then convey it to the next process for processing, and the control system is connected to the conveying and shaping module, the bending and loading module, the welding module, and the blanking and shaping module at the same time to realize the drive of the entire system and the control of the operation mode and rate.

[0045] The following is a detailed description of each module: Figure 1 is a schematic diagram of the entire structure, where Figure 2 The diagram shown is a schematic diagram of a conveying and shaping module, which includes a reduction motor 1, which is fixedly mounted on an angle aluminum bracket 7. A plurality of sprockets 13 are arranged on one side of the angle aluminum bracket relative to the bending and feeding module. The output shaft of the reduction motor is connected to an adjacent sprocket, and the plurality of sprockets are connected by a chain 14. As long as the sprocket adjacent to the output shaft of the reduction motor rotates, all the sprockets can be driven to rotate through the chain. Figure 3 As shown, a conveying connecting plate 5 is installed on the other side of the angle aluminum bracket, and a number of rollers 4 are arranged on the conveying connecting plate. The rollers are matched with the corresponding sprockets, and the movement of the chain drives the sprockets to roll, thereby driving the rollers to rotate; the rolling of the number of rollers drives the incoming materials to move forward; a number of guide plate groups are vertically installed on the conveying connecting plate, each group of guide plate groups includes two guide plates 8 arranged relatively to each other, and the guide plate group is located between the two rollers, and the spacing between the two guide plates in each guide plate group constrains the direction of the incoming material movement; it also includes a conveying guide rod 6, which passes through the angle aluminum bracket to support the conveying connecting plate; the lifting cylinder 9 is fixed at the bottom of the angle aluminum bracket, and the lifting cylinder head is vertically fixed to the conveying connecting plate, and the setting of the conveying guide rod gives the conveying connecting plate a constraint range for rising under the action of the lifting cylinder.

[0046] When the incoming material is pushed on a number of rollers, in order to prevent it from being pushed forward all the time, a blocking positioning plate 3 and a feed port support plate 12 are respectively installed at both ends of the angle aluminum bracket, and the blocking positioning plate is adjacent to the reduction motor; a feed port 11 is installed on the feed port support plate, and the feed port protrudes from the feed port support plate, and a conveying cylinder 10 is arranged at the bottom of the feed port, and the conveying cylinder rod is against the feed port, and the conveying cylinder is started, and the feed port rotates to realize the rotation of the incoming material angle; a protective cover 2 is also installed on the angle aluminum bracket, and the protective cover is arranged on the roller.

[0047] Figure 4As shown, the bending and feeding module includes a welding frame 22, and the angle aluminum bracket is fixed to the side wall of the welding frame through a frame connecting plate 15;

[0048] An aluminum profile bracket 21 is installed on the welding frame, and a rodless cylinder 26 is installed on the aluminum profile bracket. Two table plates 31 are installed on the top of the welding frame, and there is a gap between the two table plates. The bending and feeding finger cylinder 25 is connected to the rodless cylinder through the bending and feeding finger cylinder bracket 24, and the bending and feeding finger cylinder is located above the gap between the two table plates; the bending and feeding finger cylinder clamps the incoming material from the middle part and stretches it inward, and guide sheet metals 23 are respectively installed at the positions of the two table plates close to the angle aluminum bracket. Due to the setting of the guide sheet metal, the incoming material gradually forms a bend, and clamping cylinders 27 are respectively installed on the table plates on both sides of the gap, and guide bearings 29 are respectively installed on both sides of the clamping cylinder, and positioning blocks 28 are respectively installed on the positions of the table plates away from the guide sheet metal. When the incoming material is bent to the positioning block, the bending step is completed, and the clamping cylinder is started to achieve shaping; because it may be necessary to adjust the height of the welding frame during the bending operation, adjustable feet 30 are installed at the bottom of the four frame feet of the welding frame.

[0049] The welding module includes a wire feeding device, a welding device and a gas feeding device. Figure 5 As shown, the welding device includes a welding bracket 45, on which a welding gun 44 is mounted, and a welding bracket is slidably connected to each other on both sides of a linear module 48, and the welding gun can move up and down along the linear module. A welding servo motor 49 is installed at the bottom end of the linear module, and a linear module connecting plate 51 is installed on the side wall of the linear module between the two welding brackets, which is slidably connected to the bottom of an upper fixed plate 46 through a guide rail auxiliary slider 50, wherein the upper fixed plate is located between the two welding guns; a welding cylinder 47 is also installed at the bottom of the upper fixed plate, and a piston rod of the welding cylinder is connected to the linear module connecting plate, Figure 6 It can be seen that when the welding cylinder is started, the linear module connecting plate moves on the upper fixed plate through the guide rail auxiliary slider; in the welding module, the wire feeding device is a wire feeder 41, and the mixed gas 43 is arranged in the gas feeding device. It should be noted here that the linear template here is a relatively common slide rail slider structure, which can be used as long as the welding gun can move up and down.

[0050] Figure 7As shown, the blanking shaping module includes a blanking servo motor 62, which is mounted on a bracket plate 63. The bracket plate is installed on the end of the aluminum profile bracket through a pulley connecting plate 61. The motor shaft of the blanking servo motor is connected to the synchronous pulley 64. A driven wheel bracket 77 is installed at the other end of the aluminum profile bracket through a pulley connecting plate 78. The driven wheel 76 is installed on the driven wheel bracket. The synchronous pulley and the driven wheel are connected through a synchronous belt 65; one end of the synchronous belt connecting plate 80 is installed on the synchronous belt, which can realize the reciprocating operation of the synchronous belt connecting plate. The other end of the synchronous belt connecting plate is fixed to the surface of the blanking connecting plate 81. A blanking cylinder 75 and four blanking guide rods 79 are also installed on the blanking connecting plate. The four blanking guide rods are located at the four corners of the blanking connecting plate, and The four unloading guide rods are respectively passed through the unloading connecting plate by linear bearings 73 and then connected to the surface of the finger cylinder connecting plate 71. Guard plates 82 are respectively installed on both sides of the finger cylinder connecting plate. The unloading cylinder is fixed to the unloading connecting plate through the cylinder fixing plate 74. When the unloading cylinder is started, the unloading guide rod drives the unloading connecting plate to move up and down under the constraint of the linear bearing; the shaping cylinders 72 are respectively installed at the four corners of the bottom of the unloading connecting plate, and the reciprocating axis of each shaping cylinder is connected to the unloading finger cylinder 68. The unloading guide rail 69 is installed at the bottom end of the unloading connecting plate. Each unloading finger cylinder is matched and connected to the unloading guide rail through the unloading slider 70. When the unloading finger cylinder is started, it drives the unloading finger cylinder to clamp or loosen the product 67 that has completed bending and welding for external support shaping.

[0051] In the present application, the control system includes a PLC control cabinet, which is connected to the entire system so that the mechanical movements of the entire system can be stably reciprocated as required to achieve the purpose of replacing manual production. It also includes an operation display screen to display information in real time on the operation display screen.

[0052] The present application also provides a bending welding process based on the automatic column bending welding device described above. The operator presses the start button to start the PLC control cabinet, and the entire system enters the operation mode. The lifting cylinder in the conveying shaping module rises to drive the conveying connecting plate to rise within the constraint range of the conveying guide rod, and the reduction motor is started, which drives the adjacent sprocket to rotate. The sprocket drives the sprocket of the entire system to rotate through the chain. After the sprocket rotates, it drives the roller matched with it to rotate. The incoming material enters through the feed port, and the rotation of the roller drives the incoming material to be conveyed forward until it is restricted by the blocking positioning plate; the conveying cylinder is started, and the feed port is rotated to drive the incoming material to rotate 90 degrees;

[0053] After the incoming material is turned over, the fingers of the bending and feeding finger cylinder clamp the incoming material from opening to closing, the lifting cylinder descends to drive the conveying connecting plate to descend, the rodless cylinder starts, and the bending and feeding finger cylinder pulls the incoming material through two guide sheet metals to be constrained to the bending state. When the incoming material reaches the positioning block, the positioning and bending forming is completed. At this time, the conveying cylinder moves again, and the cylinder rod of the conveying cylinder resets the feed port. The clamping cylinder starts to clamp the product after positioning and bending. The rodless cylinder sends a release command to the bending and feeding finger cylinder, and the rodless cylinder resets.

[0054] Next, the welding servo motor is started to raise the two welding guns to the specified position, the welding cylinder is retracted to drive the welding guns close to the product, the welding machine 42, the wire feeder and the gas supply device are started to weld the product, and after the welding is completed, the welding cylinder is reset to push the welding guns out, and the welding servo motor is started to lower and reset the welding guns to complete the entire welding action;

[0055] Finally, start the unloading cylinder, push the unloading finger cylinder in the open state toward the product, close the finger 66 of the unloading finger cylinder, clamp the product, and the unloading cylinder drives the unloading finger cylinder to rise to the specified position again; the unloading servo motor is started, and the unloading finger cylinder that clamps the product is moved to the unloading position. At this time, the unloading finger cylinder receives the release command and drops the bent and welded product to the specified position. Finally, the unloading finger cylinder returns to the waiting position.

[0056] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0057] The meaning of "and / or" described in this application means that the situations where each exists alone or both exist at the same time are included.

[0058] The term “connection” as used in this application may mean a direct connection between components or an indirect connection between components via other components.

[0059] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An automatic column bending welding device, characterized in that: It includes a conveying and shaping module, a bending and loading module, a welding module, a blanking and shaping module and a control system; The conveying and shaping module is used to convey the incoming materials to the bending and feeding module and rotate the feed port to drive the incoming materials to rotate 90°. The bending and feeding module is used to clamp the incoming materials and perform positioning and bending. The welding module is used to weld the bent and formed pipe seals. The blanking and shaping module is used to shape the products that have been bent and welded to the preset size and then output them. The control system is simultaneously connected with the conveying and shaping module, the bending and feeding module, the welding module, and the blanking and shaping module to realize the drive and control of the entire system. The conveying and shaping module includes a reduction motor, which is fixedly mounted on an angle aluminum bracket. A plurality of sprockets are arranged on one side of the angle aluminum bracket relative to the bending and feeding module. The output shaft of the reduction motor is connected to an adjacent sprocket, and the plurality of sprockets are connected by a chain. A conveying connection plate is installed on the other side of the angle aluminum bracket. Several rollers are arranged on the conveying connection plate. The rollers match the corresponding sprockets. The movement of the chain drives the sprockets to roll, thereby driving the rollers to rotate. A plurality of guide plate groups are vertically mounted on the conveying connection plate, each guide plate group includes two guide plates arranged opposite to each other, and the guide plate group is located between two rollers, and also includes a conveying guide rod, which is penetrated by an angle aluminum bracket and abuts against the conveying connection plate; a lifting cylinder is fixed to the bottom of the angle aluminum bracket, and a lifting cylinder head is vertically fixed to the conveying connection plate; A blocking positioning plate and a feed port support plate are respectively installed at both ends of the angle aluminum bracket, the blocking positioning plate is adjacent to the reduction motor, the feed port is installed on the feed port support plate, the feed port protrudes from the feed port support plate, a conveying cylinder is arranged at the bottom of the feed port, and the conveying cylinder rod is against the feed port; A protective cover is also installed on the angle aluminum bracket, and the protective cover is arranged on the roller.

2. The automatic column bending welding device according to claim 1 is characterized in that: The aforementioned bending and feeding module comprises a welding frame, and the angle aluminum bracket is fixed to the side wall of the welding frame through a frame connecting plate; An aluminum profile bracket is installed on the welding frame, a rodless cylinder is installed on the aluminum profile bracket, two table plates are installed on the top of the welding frame, a gap is provided between the two table plates, a bending and feeding finger cylinder is connected to the rodless cylinder through the bending and feeding finger cylinder bracket, and the bending and feeding finger cylinder is located above the gap between the two table plates; Guide sheet metals are respectively installed on the two tabletops near the angle aluminum brackets, clamping cylinders are respectively installed on the tabletops on both sides of the interval, guide bearings are respectively installed on both sides of the clamping cylinders, and positioning blocks are respectively installed on the tabletops away from the guide sheet metals.

3. The automatic column bending welding device according to claim 2 is characterized in that: Install the adjustable feet at the bottom of the four frame feet of the welding frame.

4. The automatic column bending welding device according to claim 3 is characterized in that: The aforementioned welding module includes a wire feeding device, a welding device and a gas feeding device. The welding device comprises a welding bracket, a welding gun is mounted on the welding bracket, a welding bracket is slidably connected to each other on both sides of the linear module, a welding servo motor is installed at the bottom end of the linear module, and a linear module connecting plate is installed on the side wall of the linear module located between the two welding brackets, which is slidably connected to the bottom of the upper fixed plate through a guide rail auxiliary slider, wherein the upper fixed plate is located between the two welding guns; A welding cylinder is also installed at the bottom of the upper fixed plate, and the piston rod of the welding cylinder is connected to the linear module connecting plate. When the welding cylinder is started, the linear module connecting plate moves on the upper fixed plate through the guide rail auxiliary slider; The wire feeding device is a wire feeding machine, and mixed gas is arranged in the gas feeding device.

5. The automatic column bending welding device according to claim 4 is characterized in that: The aforementioned blanking shaping module includes a blanking servo motor, which is mounted on a bracket plate, which is mounted on the end of the aluminum profile bracket through a pulley connecting plate, and the motor shaft of the blanking servo motor is connected to a synchronous pulley, and a driven wheel bracket is mounted on the driven wheel bracket at the other end of the aluminum profile bracket through a pulley connecting plate, and the synchronous pulley is connected to the driven wheel through a synchronous belt; One end of the synchronous belt connecting plate is installed on the synchronous belt, and the other end thereof is fixed to the surface of the blanking connecting plate. A blanking cylinder and four blanking guide rods are also installed on the blanking connecting plate. The four blanking guide rods are located at the four corners of the blanking connecting plate, and the four blanking guide rods are respectively connected to the surface of the finger cylinder connecting plate after passing through the blanking connecting plate through linear bearings. The blanking cylinder is fixed to the blanking connecting plate through a cylinder fixing plate. When the blanking cylinder is started, the blanking guide rod drives the blanking connecting plate to move up and down reciprocatingly under the constraint of the linear bearing. The shaping cylinders are installed at the four corners of the bottom of the blanking connection plate. The reciprocating shaft of each shaping cylinder is connected to the blanking finger cylinder. The blanking guide rail is installed at the bottom of the blanking connection plate. Each blanking finger cylinder is matched and connected to the blanking guide rail through the blanking slider. The blanking finger cylinder is started to drive the blanking finger cylinder to clamp or loosen the products that have been bent and welded for external support shaping. Guard plates are installed on both sides of the finger cylinder connecting plate.

6. The automatic column bending welding device according to claim 5 is characterized in that: The aforementioned control system includes a PLC control cabinet, which is connected to the entire system, and also includes an operation display screen, which displays information in real time on the operation display screen.

7. A bending welding process based on the automatic column bending welding device according to any one of claims 1 to 6, characterized in that: The operator presses the start button to start the PLC control cabinet, and the entire system enters the operation mode. The lifting cylinder in the conveying shaping module rises and drives the conveying connecting plate to rise within the constraint range of the conveying guide rod. The reduction motor is started, which drives the adjacent sprocket to rotate. The sprocket drives the sprocket of the entire system through the chain. After the sprocket rotates, it drives the matching roller to rotate. The incoming material enters through the feed port, and the rotation of the roller drives the incoming material to be transported forward until it is restricted by the blocking positioning plate; the conveying cylinder is started, and the feed port is rotated to drive the incoming material to rotate 90 degrees; After the incoming material is turned over, the fingers of the bending and feeding finger cylinder clamp the incoming material from opening to closing, the lifting cylinder descends to drive the conveying connecting plate to descend, the rodless cylinder starts, and the bending and feeding finger cylinder pulls the incoming material through two guide sheet metals to be constrained to the bending state. When the incoming material reaches the positioning block, the positioning and bending forming is completed. At this time, the conveying cylinder moves again, and the cylinder rod of the conveying cylinder resets the feed port. The clamping cylinder starts to clamp the product after positioning and bending. The rodless cylinder sends a release command to the bending and feeding finger cylinder, and the rodless cylinder resets. Next, the welding servo motor starts to raise the two welding guns to the specified position, the welding cylinder retreats to drive the welding guns close to the product, the welding machine, wire feeder and gas supply device are started to weld the product, and after welding is completed, the welding cylinder is reset to push the welding guns out, and the welding servo motor is started to lower and reset the welding guns, completing the entire welding action; Finally, start the unloading cylinder, push the unloading finger cylinder in the open state toward the product, close the fingers of the unloading finger cylinder to clamp the product, and the unloading cylinder drives the unloading finger cylinder to rise to the specified position again; the unloading servo motor starts and moves the unloading finger cylinder that clamps the product to the unloading position. At this time, the unloading finger cylinder receives the release command and drops the bent and welded product to the specified position. Finally, the unloading finger cylinder returns to the waiting position.

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