Punching and wire bending welding machine

Abstract

The utility model provides a punching and wire bending welding machine which comprises a rack, a wire adjusting device arranged on a first platform, a punching device arranged on the first platform on one side of the wire adjusting device, a wire feeding device arranged on a second platform, a cutting device arranged on the second platform and located in front of the wire feeding device, and a bending device arranged on the second platform. The clamping and welding device is arranged on the second platform and located in front of the cutting-off device, and the clamping and welding device is erected above the second platform. Compared with the prior art, the wire adjusting device, the punching device, the wire feeding device, the cutting-off device, the bending device and the clamping and welding device are sequentially arranged on the first platform and the second platform of the rack, so that punching, bending and welding forming of the linear technology are integrated, the additional punching machining procedure is avoided, and the machining efficiency is improved. The efficiency of integrated machining and forming of linear metal is effectively improved, the production cost is effectively reduced, and the problem of operation safety of personnel is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to linear metal processing equipment technical field, specifically related to a punch hole bending wire welding machine. BACKGROUND

[0002] The bending wire welding machine in prior art is the mechanical equipment that bends and welds in one, generally first carries out bending cut to linear metal, then carries out welding to the bending wire, thereby improves the processing efficiency of bending and welding of linear metal.

[0003] But, for some flat linear metal bending welding forming product needs to increase punching process, the usual punching processing mode is that the product after bending welding formation is punched on the punch press by the worker holding the formed product, leads to additional increase a processing procedure, not only reduces the production efficiency, also improves the production cost, and the worker holding the formed product on the punch press operation also has certain danger. UTILITY MODEL CONTENTS

[0004] The utility model discloses a punch hole bending wire welding machine, which aims to solve the problem of low production efficiency and high production cost caused by the need for additional punching process for the product after bending welding formation in the prior art.

[0005] In order to achieve the above purpose, the utility model provides a punch hole bending wire welding machine, which comprises a rack, a first platform and a second platform arranged on the rack, a wire adjusting device arranged on the first platform, the wire adjusting device being used for straightening the linear metal passing through, a punching device arranged on the first platform on one side of the wire adjusting device, the punching device being used for punching the linear metal passing through, a wire feeding device arranged on the second platform, the wire feeding device being used for linearly moving and feeding the linear metal passing through through a plurality of feeding wheels, a cutting device arranged on the second platform and located in front of the wire feeding device, the cutting device being used for cutting the linear metal passing through, a bending device arranged on the second platform and located in front of the cutting device, the bending device being used for rotating and bending the linear metal passing through, and a clamping and welding device arranged above the second platform, the clamping and welding device being used for clamping the linear metal after bending and cutting and welding the two ends of the linear metal.

[0006] Further, the wire adjusting device comprises wire adjusting supports, a connecting vertical plate and a connecting flat plate are fixedly connected between the wire adjusting supports, a plurality of spring pressure wheels are arranged on one side end face of the connecting vertical plate and the upper end face of the connecting flat plate in an interval staggered manner.

[0007] Further, the punching device comprises a punching support, a die holder and a punching oil cylinder, the punching support is arranged on the first platform, the die holder is arranged on the upper end of the punching support, the die holder is a hollow cylinder structure with an opening at one end, the die holder is internally provided with a bottom knife die, the die holder is symmetrically provided with a wire passing hole close to the upper end face of the bottom knife die on both sides, the punching oil cylinder is arranged at one end of the die holder opposite to the bottom knife die, and the piston rod end of the punching oil cylinder is provided with a punching die head matched with the bottom knife die for stamping.

[0008] Further, the bottom of the die holder is provided with a blanking hole.

[0009] Further, the wire feeding device comprises a plurality of feeding wheels, a mounting box and a transmission motor, the plurality of feeding wheels are symmetrically arranged in pairs and horizontally arranged on the second platform, the mounting box is arranged at the bottom of the second platform, the mounting box is internally provided with two transmission main shafts and a plurality of transmission sub-shafts, the two transmission main shafts are vertically rotatably connected in the mounting box, one end of each of the two transmission main shafts is provided with a first transmission gear, one end of each of the plurality of transmission sub-shafts is vertically connected to the plurality of feeding wheels, the other end of each of the plurality of transmission sub-shafts is provided with a second transmission gear, and the two opposite second transmission gears are meshingly connected, the first transmission gear is meshingly connected with the second transmission gear close to it, and the transmission motor is vertically arranged at the bottom of the mounting box, the output shaft of the transmission motor extends into the mounting box, and the output shaft end of the transmission motor is provided with a main transmission gear meshing with the two first transmission gears.

[0010] Further, the second platform is provided with a spring mounting groove, and the spring mounting groove is internally provided with a compression spring connected with the feeding wheel.

[0011] Further, the cutting device comprises a cutter mounting seat, a cutter plate and a cutter motor, the upper end of the cutter mounting seat passes through the bottom of the second platform to the upper end of the second platform, the cutter plate is stacked on one side of the cutter mounting seat, the upper end of the cutter plate is provided with a cutter, a center connecting shaft connected with the cutter mounting seat is transversely arranged on the cutter plate, an oval hole is arranged on the cutter plate below the center connecting shaft, and the cutter motor is vertically arranged on one side of the cutter mounting seat, and the output shaft end of the cutter motor is provided with a cutter cam connected with the oval hole.

[0012] Further, the bending device comprises a movable inner mold and a movable outer mold arranged on the second platform, the movable inner mold is arranged concentrically inside the movable outer mold, the upper end of the movable inner mold is provided with a bending mold, the lower end of the movable inner mold is connected with an inner mold shaft arranged below the second platform, the lower end of the movable outer mold is connected with an outer mold shaft arranged concentrically outside the inner mold shaft, the inner mold shaft and the outer mold shaft are arranged at the bottom of the second platform through a guide frame, the guide frame is provided with a sleeve shaft gear and a motor for driving the inner mold shaft and the outer mold shaft, and the guide frame is provided with a cylinder for driving the inner mold shaft and the outer mold shaft to move up and down.

[0013] Further, the clamping and welding device comprises a transformer cabinet and a welding head, the transformer cabinet is vertically arranged on one side of the second platform, the welding head is connected with the transformer cabinet through a connecting support and arranged above the cutting device and the bending device, and the transformer cabinet is provided with a transformer and an air tank connected with the welding head.

[0014] Further, the welding head comprises a head frame, a welding clamp mechanism, two pneumatic clamping jaws and a welding positioning pin, the welding clamp mechanism comprises a fixed clamp and a movable clamp, the front ends of the fixed clamp and the movable clamp are provided with welding electrodes and arranged on the front side of the head frame, a transversely moving guide rail slider is arranged between the movable clamp and the head frame, one side of the head frame is provided with a driving cylinder connected with the movable clamp and used for driving the movable clamp to move transversely and approach the fixed clamp, the movable clamp and the fixed clamp each comprise an upper clamp and a lower clamp, the rear end of the upper clamp is hingedly provided with a connecting rod cylinder structure used for driving the lower clamp to approach the upper clamp, the two pneumatic clamping jaws are vertically arranged on the front side of the head frame through pneumatic sliders and linear guides and located on the two sides of the front ends of the fixed clamp and the movable clamp, and the welding positioning pin is arranged between the fixed clamp and the movable clamp and controlled to move up and down through a cylinder and a guide rail slider.

[0015] Compared with the prior art, the punching and bending welding machine has the advantages that the punching, bending and welding forming of the linear technology are integrated, additional punching processing procedures are avoided, the efficiency of integrated processing and forming of the linear metal is effectively improved, the production cost is effectively reduced, and the operation safety problem of personnel is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the punching and bending welding machine.

[0017] Figure 2The utility model discloses a structure schematic drawing of the line adjusting device of a punching and bending welding machine.

[0018] Figure 3 The utility model discloses a structure schematic drawing of the punching device of a punching and bending welding machine.

[0019] Figure 4 The utility model discloses an internal structure schematic drawing of the die frame of a punching and bending welding machine.

[0020] Figure 5 The utility model discloses a connecting structure schematic drawing of the line feeding device of a punching and bending welding machine on the second platform.

[0021] Figure 6 The utility model discloses a structure schematic drawing of the line feeding device of a punching and bending welding machine on the second platform from another perspective (hides transmission motor and partial second transmission gear).

[0022] Figure 7 The utility model discloses a structure schematic drawing of the cutting device of a punching and bending welding machine.

[0023] Figure 8 The utility model discloses a structure schematic drawing of the bending device of a punching and bending welding machine.

[0024] Figure 9 The utility model discloses a vertical section view of the bending device of a punching and bending welding machine.

[0025] Figure 10 The utility model discloses a structure schematic drawing of the clamping and welding device of a punching and bending welding machine.

[0026] Figure 11 The utility model discloses a structure schematic drawing of the welding clamp mechanism of a punching and bending welding machine.

[0027] Figure 12 The utility model discloses a structure schematic drawing of the welding clamp mechanism of a punching and bending welding machine from another perspective (hides shell and side plate).

[0028] Explanation of reference signs

[0029] 10 - frame;11 - first platform;12 - second platform;

[0030] 20 - line adjusting device;21 - line adjusting support;22 - connecting vertical plate;23 - connecting flat plate;24 - spring pressure wheel;

[0031] 30 - punching device;31 - punching support;32 - die frame;33 - bottom cutter die;34 - wire passing hole;35 - blanking hole;36 - punching oil cylinder;37 - punching die head;

[0032] 40 - Wire feeding device; 41 - Feeding wheel; 42 - Mounting box; 421 - Transmission main shaft; 422 - First transmission gear; 423 - Transmission secondary shaft; 424 - Second transmission gear; 43 - Transmission motor; 44 - Main transmission gear; 45 - Spring mounting slot;

[0033] 50 - Cutting device; 51 - Cutter mounting base; 52 - Cutter plate; 521 - Cutter; 522 - Central connecting shaft; 523 - Oval hole; 53 - Cutter motor; 54 - Cutter cam;

[0034] 60-Bending device; 61-Modible inner mold; 611-Bending die; 612-Inner mold shaft; 62-Modible outer mold; 621-Outer mold shaft; 63-Sleeve gear; 64-Motor; 65-Guide frame; 66-Cylinder;

[0035] 70-Clamping welding device; 71-Transformer chassis; 72-Welding head; 73-Head frame; 74-Welding clamp mechanism; 741-Fixed clamp; 742-Moving clamp; 743-Welding electrode; 744-Drive cylinder; 745-Upper clamp; 746-Lower clamp; 747-Connecting rod cylinder structure; 75-Pneumatic gripper; 76-Welding positioning pin. Detailed Implementation

[0036] The present invention will be described in detail below with reference to specific embodiments.

[0037] In this utility model, when directional terms appear, they are used to facilitate the description of this utility model and simplify the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this utility model.

[0038] In this utility model, unless otherwise explicitly specified and limited, when terms such as "set in," "connected," or "linked" appear, these terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] like Figure 1 As shown, a punching and bending welding machine includes a frame 10, a wire adjusting device 20, a punching device 30, a wire feeding device 40, a cutting device 50, a bending device 60, and a clamping and welding device 70.

[0040] The rack 10 is provided with a first platform 11 and a second platform 12, the wire adjusting device 20 is arranged on the first platform 11, the wire adjusting device 20 is used for straightening the linear metal passing through, the punching device 30 is arranged on the first platform 11 on one side of the wire adjusting device 20, the punching device 30 is used for punching the linear metal passing through, the wire feeding device 40 is arranged on the second platform 12, the wire feeding device 40 is used for linearly feeding the linear metal passing through through a plurality of feeding wheels 41, the cutting device 50 is arranged on the second platform 12 and located in front of the wire feeding device 40, and is used for cutting the linear metal passing through, and the bending device 60 is arranged on the second platform 12 and located in front of the cutting device 50, and is used for rotating and bending the linear metal passing through; the clamping and welding device 70 is arranged above the second platform 12, and is used for clamping the linear metal after bending and cutting and welding two ends of the linear metal.

[0041] By sequentially arranging the wire adjusting device 20, the punching device 30, the wire feeding device 40, the cutting device 50, the bending device 60 and the clamping and welding device 70 on the first platform 11 and the second platform 12 of the rack 10, the punching, bending and welding forming of the linear metal are integrated, the additional punching process is avoided, the efficiency of the integrated processing and forming of the linear metal is effectively improved, the production cost is effectively reduced, and the operation safety problem of the personnel is avoided.

[0042] As shown in Figure 1 and Figure 2 , in the embodiment, the wire adjusting device 20 comprises a wire adjusting support 21, a connecting vertical plate 22 and a connecting flat plate 23 are fixedly connected between the wire adjusting supports 21, and a plurality of spring pressure wheels 24 are arranged on the side end surface of the connecting vertical plate 22 and the upper end surface of the connecting flat plate 23.

[0043] In specific implementation, the linear metal passes through the spring pressure wheels 24 on the connecting vertical plate 22 and the connecting flat plate 23, so that the linear metal is straightened.

[0044] As shown in Figure 1 , Figure 3 and Figure 4 , in the embodiment, the punching device 30 comprises a punching support 31, a die frame 32 and a punching oil cylinder 36, the punching support 31 is arranged on the first platform 11, the die frame 32 is arranged on the upper end of the punching support 31, the die frame 32 is a hollow column structure with an opening at one end, a bottom knife die 33 is arranged in the die frame 32, a wire passing hole 34 is symmetrically arranged on the two sides of the die frame 32 and close to the upper end surface of the bottom knife die 33, the punching oil cylinder 36 is arranged at one end of the die frame 32 opposite to the bottom knife die 33, and a punching die head 37 matched with the bottom knife die 33 is arranged at the piston rod end of the punching oil cylinder 36.

[0045] In the specific implementation, the straightened linear metal is fed through the punching die head 37 driven by the punching oil cylinder 36 in cooperation with the bottom cutter die 33 to punch the linear metal. In addition, the bottom of the die frame 32 is provided with a blanking hole 35 for blanking the waste material after punching to avoid accumulation in the die frame 32.

[0046] As shown in Figure 1 , Figure 5 and Figure 6 , in the present embodiment, the wire feeding device 40 comprises a plurality of feeding wheels 41, a mounting box 42 and a transmission motor 6443. The plurality of feeding wheels 41 are symmetrically arranged on the second platform 12, the mounting box 42 is arranged at the bottom of the second platform 12, and the mounting box 42 is provided with two transmission main shafts 421 and a plurality of transmission sub-shafts 423. The two transmission main shafts 421 are vertically rotatably connected in the mounting box 42, one end of each of the two transmission main shafts 421 is provided with a first transmission gear 422, one end of each of the plurality of transmission sub-shafts 423 is perpendicularly connected to the plurality of feeding wheels 41, the other end of each of the plurality of transmission sub-shafts 423 is provided with a second transmission gear 424, and the two opposite second transmission gears 424 are meshingly connected. The first transmission gear 422 is meshingly connected with the second transmission gear 424 adjacent thereto. The transmission motor 6443 is vertically arranged at the bottom of the mounting box 42, the output shaft of the transmission motor 6443 extends into the mounting box 42, and the output shaft of the transmission motor 6443 is provided with a main transmission gear 44 meshingly connected with the two first transmission gears 422.

[0047] In the specific implementation, the linear metal is moved between the plurality of feeding wheels 41 symmetrically arranged for feeding. The transmission motor 6443 is meshingly connected with the first transmission gear 422 on the two transmission main shafts 421. Each of the plurality of feeding wheels 41 is connected with one of the plurality of transmission sub-shafts 423, the other end of each of the plurality of transmission sub-shafts 423 is provided with the second transmission gear 424, and the two opposite second transmission gears 424 are meshingly connected. The first transmission gear 422 is meshingly connected with the second gear adjacent thereto, so that each of the two opposite feeding wheels 41 rotates in the opposite direction, thereby driving the linear metal to move between the plurality of feeding wheels 41.

[0048] In the present embodiment, the second platform 12 is provided with a spring mounting groove 45, and the spring mounting groove 45 is provided with a compression spring connected with the feeding wheel 41 for providing a compression force to the feeding wheel 41, thereby playing a role of compression and adjustment for the linear metal.

[0049] As shown in Figure 1 and Figure 7As shown in the figure, in the embodiment, the cutting device 50 comprises a cutter mounting seat 51, a cutter plate 52 and a cutter motor 53, the upper end of the cutter mounting seat 51 passes through the bottom of the second platform 12 to the upper end of the second platform 12, the cutter plate 52 is arranged on one side of the cutter mounting seat 51, the upper end of the cutter plate 52 is provided with a cutter, a central connecting shaft 522 is horizontally arranged on the cutter plate 52 and connected with the cutter mounting seat 51, an oval hole 523 is arranged below the central connecting shaft 522 on the cutter plate 52, and the cutter motor 53 is vertically arranged on one side of the cutter mounting seat 51 and provided with a cutter cam 54 connected with the oval hole 523.

[0050] In the specific implementation, the cutter plate 52 is arranged on one side of the cutter mounting seat 51, the cutter plate 52 can rotate along the axial direction through the central connecting shaft 522, the cutter cam 54 is arranged on the output shaft end of the cutter motor 53 and connected with the oval hole 523 on the cutter plate 52, so that the cutter plate 52 is driven to move along the track of the oval connecting hole, thereby driving the cutter on the upper end of the cutter plate 52 to shear the passing linear metal.

[0051] As shown in the figure, Figure 1 , Figure 8 and Figure 9 in the embodiment, the bending device 60 comprises a movable inner die 61 and a movable outer die 62 arranged on the second platform 12, the movable inner die 61 is concentrically arranged in the inner center of the movable outer die 62, the upper end of the movable inner die 61 is provided with a bending die 611, the lower end of the movable inner die 61 is connected with an inner die shaft 612 located below the second platform 12, the lower end of the movable outer die 62 is connected with an outer die shaft 621 concentrically arranged outside the inner die shaft 612, the inner die shaft 612 and the outer die shaft 621 are arranged on the bottom of the second platform 12 through a guide frame 65, the guide frame 65 is provided with a sleeve shaft gear 63 and a motor 64 for driving the inner die shaft 612 and the outer die shaft 621, and the guide frame 65 is provided with a cylinder 66 for driving the inner die shaft 612 and the outer die shaft 621 to move up and down.

[0052] In the specific implementation, the inner die shaft 612 and the outer die shaft 621 are respectively provided with sleeve shaft gears 63 connected therewith, two driving motors 64 are respectively connected with the two sleeve shaft gears 63 through gears, thereby driving the inner die shaft 612 and the outer die shaft 621 to rotate respectively, the inner die shaft 612 and the outer die shaft 621 are driven to lift respectively through the jacking cylinders 66 connected with the inner die shaft 612 and the outer die shaft 621 on the guide frame 65, thereby enabling the linear metal to be rotated or jacked in the bending die 611 on the upper end of the movable inner die 61.

[0053] As shown in the figure, Figure 1 and Figure 10As shown, in the embodiment, the clamping and welding device 70 comprises a transformer cabinet 71 and a welding head 72, the transformer cabinet 71 is vertically arranged on one side of the second platform 12, the welding head 72 is connected with the transformer cabinet through a connecting support and is arranged above the cutting device 50 and the bending device 60, the transformer cabinet 71 is internally provided with a transformer and an air tank connected with the welding head 72.

[0054] In the specific implementation, the transformer cabinet 71 is connected with the rack 10 in a split type, which can be adapted to different machine devices.

[0055] As Figure 11 and Figure 12 In the embodiment, the welding head 72 comprises a head frame 73, a welding clamp mechanism 74, two pneumatic clamping jaws 75 and a welding positioning pin 76, the welding clamp mechanism 74 comprises a fixed clamp 741 and a movable clamp 742, the front ends of the fixed clamp 741 and the movable clamp 742 are provided with welding electrodes 743 and are arranged through the front side of the head frame 73, a transversely moving guide rail sliding block is arranged between the movable clamp 742 and the head frame 73, one side of the head frame 73 is provided with a driving air cylinder 744 connected with the movable clamp 742, which is used to drive the movable clamp 742 to move transversely and to close contact with the welding electrodes 743 at the front end of the fixed clamp 741, the movable clamp 742 and the fixed clamp 741 each comprise an upper clamp 745 and a lower clamp 746, the rear end of the upper clamp 745 is hingedly provided with a connecting rod air cylinder structure 747, which is used to drive the lower clamp 746 to close contact with the upper clamp 745, the two pneumatic clamping jaws 75 are vertically arranged on the front side of the head frame 73 and are located on both sides of the front ends of the fixed clamp 741 and the movable clamp 742, and the welding positioning pin 76 is arranged between the fixed clamp 741 and the movable clamp 742 and is controlled to move up and down through an air cylinder and a guide rail sliding block.

[0056] In the specific implementation, after the linear metal is cut and bent, the two pneumatic clamping jaws 75 are lowered to grab the linear metal and are raised to below the upper clamps 745 of the movable clamp 742 and the fixed clamp 741, then the driving air cylinder 744 drives the movable clamp 742 to move to the fixed clamp 741 and to clamp and contact the welding positioning pin 76, at the same time, the lower clamps 746 of the movable clamp 742 and the fixed clamp 741 are lifted together through the connecting rod air cylinder structure 747, the welding positioning pin 76 is moved upward and retracted, the linear metal is clamped between the upper clamps 745 and the lower clamps 746, and is welded through the welding electrodes 743, and the welding positioning pin 76 can ensure the precision and quality of the processed workpiece, thereby improving the accuracy and efficiency of welding.

[0057] In the case of no conflict, the above-mentioned embodiments and features in the embodiments can be combined with each other.

[0058] It should be explained finally that the above embodiment is only used to illustrate the technical scheme of the utility model, and is not the limit of the protection scope of the utility model, although the utility model is explained in detail with reference to the preferred embodiment, the ordinary skilled in the art should understand that the technical scheme of the utility model can be modified or replaced equivalently, and does not deviate from the essence and scope of the technical scheme of the utility model.

Claims

1. A punching, bending, and welding machine, characterized in that, include: A frame, on which a first platform and a second platform are provided; A straightening device is installed on the first platform, and the straightening device is used to straighten the linear metal passing through it; A punching device is disposed on the first platform on one side of the adjusting device, the punching device being used to punch holes in the passing linear metal; A wire feeding device is installed on the second platform. The wire feeding device feeds the linear metal through multiple feeding wheels in a straight line. A cutting device is disposed on the second platform and located in front of the wire feeding device for cutting the passing linear metal; A bending device, disposed on the second platform and located in front of the cutting device, is used to rotate and bend the linear metal passing through. A clamping and welding device is mounted above the second platform to clamp the bent and cut linear metal and weld the two ends of the linear metal.

2. The punching, bending, and welding machine according to claim 1, characterized in that, The cable adjustment device includes cable adjustment brackets, and connecting vertical plates and connecting flat plates are fixedly connected between the cable adjustment brackets. Multiple spring pressure rollers are provided on one side end face of the connecting vertical plate and the upper end face of the connecting flat plate at intervals.

3. The punching, bending, and welding machine according to claim 1, characterized in that, The punching device includes a punching bracket, a die frame, and a punching cylinder. The punching bracket is mounted on the first platform, and the die frame is mounted on the upper end of the punching bracket. The die frame is a hollow column structure with an opening at one end. The die frame has a bottom die inside, and wire-passing holes are symmetrically arranged on both sides of the die frame near the upper end face of the bottom die. The punching cylinder is disposed opposite to the bottom die at one end of the die frame, and the piston rod end of the punching cylinder is provided with a punching die head that cooperates with the bottom die for punching.

4. A punching, bending, and welding machine according to claim 3, characterized in that, The bottom of the mold frame is provided with a material drop hole.

5. A punching, bending, and welding machine according to claim 1, characterized in that, The wire feeding device includes multiple feeding wheels, a mounting box, and a drive motor. The feeding wheels are symmetrically arranged in pairs on the second platform. The mounting box is located at the bottom of the second platform. The mounting box contains two main drive shafts and multiple auxiliary drive shafts. The two main drive shafts are vertically rotatably connected to the mounting box. One end of each of the two main drive shafts is provided with a first drive gear. One end of each of the multiple auxiliary drive shafts is vertically connected to the multiple feeding wheels. The other end of each of the multiple auxiliary drive shafts is provided with a second drive gear. Two opposing second drive gears are meshed together. The first drive gear is meshed with the adjacent second drive gear. The drive motor is vertically arranged at the bottom of the mounting box. The output shaft of the drive motor extends into the mounting box. The output shaft end of the drive motor is provided with a main drive gear that meshes with two of the first drive gears.

6. A punching, bending, and welding machine according to claim 5, characterized in that, The second platform is provided with a spring mounting groove, and a compression spring connected to the feeding wheel is provided in the spring mounting groove.

7. A punching, bending, and welding machine according to claim 1, characterized in that, The cutting device includes a cutter mounting base, a cutter plate, and a cutter motor. The upper end of the cutter mounting base extends from the bottom of the second platform to the upper end of the second platform. The cutter plate is stacked on one side of the cutter mounting base. A cutter is provided at the upper end of the cutter plate. A central connecting shaft connected to the cutter mounting base is transversely passed through the cutter plate. An elliptical hole is provided below the central connecting shaft on the cutter plate. The cutter motor is vertically arranged on one side of the cutter mounting base. A cutter cam is provided at the output shaft end of the cutter motor and connected to the elliptical hole.

8. A punching, bending, and welding machine according to claim 1, characterized in that, The bending device includes a movable inner mold and a movable outer mold disposed on the second platform. The movable inner mold is concentrically disposed at the inner center of the movable outer mold. A bending die is provided at the upper end of the movable inner mold. An inner mold shaft located below the second platform is connected to the lower end of the movable inner mold. An outer mold shaft concentrically sleeved outside the inner mold shaft is connected to the lower end of the movable outer mold. The inner mold shaft and the outer mold shaft are disposed at the bottom of the second platform through a guide frame. The guide frame is provided with a bushing gear and a motor for driving the inner mold shaft and the outer mold shaft. A cylinder for driving the inner mold shaft and the outer mold shaft to move up and down is provided on the guide frame.

9. A punching, bending, and welding machine according to claim 1, characterized in that, The clamping welding device includes a transformer chassis and a welding head. The transformer chassis is erected on one side of the second platform. The welding head is connected to the transformer chassis via a connecting bracket and is mounted above the cutting device and bending device. The transformer chassis contains a transformer and a gas storage tank connected to the welding head.

10. A punching, bending, and welding machine according to claim 9, characterized in that, The welding head includes a head frame, a welding clamp mechanism, two pneumatic grippers, and a welding positioning pin. The welding clamp mechanism includes a fixed clamp and a movable clamp. The front ends of the fixed clamp and the movable clamp are provided with welding electrodes, which pass through the front side of the head frame. A lateral sliding guide rail is provided between the movable clamp and the head frame. A drive cylinder connected to the movable clamp is provided on one side of the head frame for driving the movable clamp to move laterally towards the fixed clamp. Both the movable clamp and the fixed clamp include an upper clamp and a lower clamp. The rear end of the upper clamp is hinged with a connecting rod cylinder structure for driving the lower clamp to move towards the upper clamp. The two pneumatic grippers are vertically arranged on the front side of the head frame via pneumatic sliders and linear guide rails, and are located on both sides of the front ends of the fixed clamp and the movable clamp. The welding positioning pin is located between the fixed clamp and the movable clamp and is controlled to move up and down by the cylinder and the guide rail slider.

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