A punching and welding bridge shell stamping forming device

Abstract

A punching and forming device for a punched and welded bridge shell relates to the field of metal punching technology, including a punching table, which is a horizontally arranged square table. A horizontal support base is arranged directly below the punching table. Two symmetrical connecting vertical plates are fixedly connected to the two ends of the upper surface of the support base, and the upper ends of each connecting vertical plate are fixedly connected to the lower surface of the punching table. A blanking component, an induction heating component and a punching and shaping component are arranged on the punching table, a clamping and transfer component is arranged below the punching table, and a lower forming die set is arranged on the support base for lifting and lowering; a blanking connecting port, a heating connecting port and a punching connecting port are opened in sequence on the upper surface of the punching table, and the punching connecting port is a cross-shaped port. The present invention solves the problems of single function, poor stamping effect, inconvenient blanking separation, uneven preheating and poor continuity of workpiece conveying and transfer when the punching equipment in the traditional technology is used for punching and shaping of punched and welded bridge shells.

Description

Technical Field

[0001] The invention relates to the technical field of metal stamping, and in particular to a stamping and forming device for a stamped and welded bridge housing. Background Art

[0002] The axle housing is the assembly base for installing the main reducer, differential, half-axle, and wheel in the vehicle axle. Its main function is to support and protect the main reducer, differential, and half-axle. The axle housing is divided into three types according to the structural form: integral, separable, and combined. Specifically, the separable axle housing is composed of the left and right axle housings and the half-axle sleeves; the integral axle housing is similar to a hollow beam, and the axle housing and the main reducer housing are divided into two parts; the characteristic of the combined axle housing is that the main reducer housing and part of the axle housing are cast as one, and then seamless steel pipes are pressed into both ends.

[0003] Integral bridge shells can be divided into three categories according to different manufacturing processes: cast integral bridge shells, steel plate stamping and welding bridge shells, and steel tube expansion types. Among them, the main components of the steel plate stamping and welding integral bridge shells are two symmetrical stamping and welding bridge shells. The stamping and welding bridge shells use steel plates as raw materials and are processed into half shells through stamping. The two half shells are then welded together, and then the bridge shell rear cover, reinforcement ring, shaft head and spring support are welded to form an integral bridge shell. The stamping and welding bridge shell is light in weight and has high production efficiency, which is suitable for mass production. As a new product to replace the cast bridge shell, the stamping and welding bridge shell has been widely used in truck production.

[0004] The punched and welded bridge shell is manufactured by different stamping processes according to the size of the bridge shell. The punched and welded bridge shell of small axles of light vehicles is produced by cold stamping process. The specific process is: blanking → drawing forming; the punched and welded bridge shell of medium and heavy axles is produced by hot stamping process. The stamping process is: flame cutting or plasma cutting → medium frequency induction heating → hot stamping forming.

[0005] However, due to design defects, when using existing stamping equipment to stamp and form the punch-welded bridge housing, there are generally the following technical problems, including:

[0006] 1. The equipment has a single function, and it is difficult to simultaneously implement multiple processes including blanking, heating, and stamping on one device.

[0007] 2. The structure of the stamping equipment is simple, and it is difficult to adapt to the stamping and shaping of complex and complicated stamped and welded bridge shells, so that the expected stamping effect cannot be achieved.

[0008] 3. It is inconvenient to separate the blanks, and it is difficult to limit the specific size of the stamped sheet.

[0009] 4. The preheating of the stamping sheet is uneven.

[0010] 5. The transfer continuity of stamping workpieces between multiple processes is poor.

[0011] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0012] In view of the defects in the prior art, the present invention provides a punching and forming device for a punched and welded bridge shell, which is used to solve the problems of single function, poor stamping effect, inconvenient material separation, uneven preheating and poor continuity of workpiece conveying and transfer existing in the punching equipment in the traditional technology when used for the punching and shaping of the punched and welded bridge shell.

[0013] To achieve the above object, the present invention provides the following technical solutions:

[0014] A punching and forming device for a welded bridge shell comprises a punching table, which is a horizontally arranged square table. A horizontal support base is provided directly below the punching table. Two symmetrical connecting vertical plates are fixedly connected to the two ends of the upper surface of the support base, and the upper end of each connecting vertical plate is fixedly connected to the lower surface of the punching table. A blanking component, an induction heating component and a punching and forming component are respectively provided on the punching table. A clamping and transferring component is provided below the punching table, and a lower forming die group is provided on the support base for lifting and lowering.

[0015] As an optimized solution, the upper surface of the stamping table is sequentially provided with a blanking connecting port, a heating connecting port and a stamping connecting port, and the stamping connecting port is a cross-shaped port.

[0016] As an optimized solution, the stamping forming component includes a stamping support frame, which is a U-shaped frame with an opening facing downward. The lower ends of the stamping support frame span the stamping connecting port and are fixedly connected to the upper surface of the stamping table. Two symmetrical pneumatic telescopic cylinders are laterally fixedly connected to the upper inner top surface of the stamping support frame, and the lower telescopic end of the pneumatic telescopic cylinder is fixedly connected to a semi-cylindrical stamping upper die.

[0017] As an optimized solution, the stamping forming component also includes four rolling limit plates, which are symmetrically arranged in pairs above the stamping table and on both sides of the stamping connecting port, and rolling forming wheels are rotatably provided at the ends of the two laterally opposite rolling limit plates. A rolling drive motor is fixedly connected to the lateral outer wall of each rolling limit plate corresponding to the rolling forming wheel, and the end of the output shaft of the rolling drive motor passes through the rolling limit plate and is fixedly connected to the rolling forming wheel.

[0018] As an optimized solution, two symmetrical displacement and telescopic cylinders are fixedly connected to each longitudinal side end face of the stamping table, the telescopic ends of the displacement and telescopic cylinders are fixedly connected to a vertical displacement driving plate, and the ends of the two laterally opposite rolling limit plates are fixedly connected to the longitudinal inner side wall of the displacement driving plate.

[0019] As an optimized solution, the molding lower die group includes a stamping lower die that is set to rise and fall, the stamping lower die is arranged directly below the stamping connecting port, the size of the stamping lower die is slightly smaller than the size of the stamping connecting port, and the upper surface of the stamping lower die is provided with an arc molding groove.

[0020] As an optimized solution, the blanking assembly includes two symmetrically arranged C-shaped side panels, and the two C-shaped side panels are laterally arranged on both sides of the blanking connection port. A sliding drive motor is fixedly connected to the longitudinal outer end face of each C-shaped side panel, and the end of the output shaft of the sliding drive motor passes through the C-shaped side panel and is fixedly connected to a longitudinal drive threaded rod, and the end of the drive threaded rod is rotatably supported on the longitudinal inner wall of the C-shaped side panel.

[0021] As an optimized solution, each of the C-shaped side panels is provided with a longitudinally extending limit slide, a driving slide is clamped in the limit slide, both ends of the driving slide pass through the limit slide and extend outward, and the driving threaded rod passes through the driving slide and is threadedly connected thereto.

[0022] As an optimized solution, a horizontal telescopic cylinder is fixedly connected to the inner end surface of each driving slide, a laser generator is fixedly connected to the telescopic end of the horizontal telescopic cylinder, and a cutting head is fixedly connected to the lower end of the laser generator.

[0023] As an optimized solution, a laterally extending supporting bridge plate is fixedly connected to the middle of the upper surface of the two C-shaped side plates, a pressing telescopic cylinder is fixedly connected to the middle of the lower surface of the supporting bridge plate, and a lower pressing plate is fixedly connected to the lower telescopic end of the pressing telescopic cylinder.

[0024] As an optimized solution, two symmetrical conveying clamps are fixedly connected to each longitudinal side end face of the stamping table, and a number of conveying rollers are rotatably arranged between the two conveying clamps. The several conveying rollers are arranged on both longitudinal sides of the blanking connecting port, and a conveying drive motor is fixedly connected to the outer side wall of each conveying clamp, and the output shaft end of the conveying drive motor passes through the conveying clamp and is fixedly connected to the side end face of the last conveying roller.

[0025] As an optimized solution, the induction heating assembly includes a horizontally arranged lifting top plate, and the lifting top plate is arranged directly above the heating connecting port. The upper surface of the stamping table is respectively provided with four groups of lifting and telescopic cylinders that are symmetrical in pairs. The four groups of lifting and telescopic cylinders are laterally arranged on both sides of the stamping table, and the upper telescopic ends of each group of lifting and telescopic cylinders are respectively fixed to the lower surface of the lifting top plate, and the upper surface of the lifting top plate is fixed with a power supply module, and the lower surface of the lifting top plate is fixed with a medium frequency induction heating plate, and the power supply module is connected to the medium frequency induction heating plate for power supply.

[0026] As an optimized solution, a vertical telescopic cylinder is fixedly connected to the center of the upper surface of the support base, and a transfer support seat is fixedly connected to the telescopic end of the vertical telescopic cylinder. The size of the transfer support seat is smaller than the size of the heating connecting port.

[0027] As an optimized solution, the lower forming die set also includes a lifting and lowering blanking bottom die, the blanking bottom die is arranged directly below the blanking connecting port, the size of the blanking bottom die is smaller than the size of the blanking connecting port, and the upper surface of the blanking bottom die is provided with four vertically intersecting cutting avoidance grooves.

[0028] As an optimized solution, two longitudinally symmetrical hydraulic telescopic cylinders are fixedly connected to the upper surface of the support base corresponding to the stamping lower die, and the upper telescopic ends of the hydraulic telescopic cylinders are fixedly connected to the lower surface of the stamping lower die.

[0029] As an optimized solution, two longitudinally symmetrical electrically-controlled telescopic cylinders are fixedly connected to the upper surface of the support base corresponding to the blanking bottom die, and the upper telescopic ends of the electrically-controlled telescopic cylinders are fixedly connected to the lower surface of the blanking bottom die.

[0030] As an optimized solution, the clamping and transfer assembly includes two symmetrically arranged mounting bases, and the two mounting bases are respectively fixed to the transverse outer walls of the two connecting vertical plates. Two vertically symmetrical adjustable telescopic cylinders are respectively fixed to the longitudinal side end faces of each mounting base, and the telescopic ends of the adjustable telescopic cylinders are fixed with square displacement blocks.

[0031] As an optimized solution, two horizontal support plates that are symmetrical up and down are fixedly connected to the transverse inner end face of each square displacement block, an inner support roller is rotatably provided between the two horizontal support plates, a rotating drive motor is fixedly connected to the lower surface of the horizontal support plate at the bottom, an output shaft end of the rotating drive motor passes through the horizontal support plate and is fixedly connected to the center of the lower surface of the inner support roller, a transfer conveyor belt is sleeved between the two laterally opposite inner support rollers, and the transfer conveyor belt can clamp and convey the stamping parts in each process.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The present invention simultaneously provides a blanking component, an induction heating component and a stamping and shaping component. Through the linkage and cooperation between the components, diversified processing including blanking, heating and stamping can be simultaneously achieved on one device, thereby greatly improving the stamping efficiency.

[0034] The stamping and shaping component provided in the present invention can realize the complete stamping and shaping of the complex structure of the punched and welded bridge shell. Specifically, the stamping and shaping component includes a stamping upper die that is set to rise and fall, and the stamping upper die can achieve the stamping and shaping of the arc-shaped opening in the middle of the punched and welded bridge shell by cooperating with the stamping lower die in the lifting and falling motion; the stamping and shaping component also includes rolling forming wheels that are telescopically arranged on both sides of the stamping upper die. On the one hand, the rolling forming wheels can press and position other parts of the sheet when the middle arc-shaped opening is stamped to prevent the deformation of the remaining parts of the sheet from causing stamping deviations. On the other hand, the rolling forming wheels can also cooperate with the stamping lower die that is periodically lifted and lowered. The rolling driving motor drives the rolling forming wheels to rotate, and the displacement telescopic cylinder drives the displacement driving plate and the rolling limiting plate to move back and forth in the longitudinal direction, so as to realize multiple rolling shaping of the groove part of the punched and welded bridge shell.

[0035] The blanking assembly provided in the present invention can cut a stamping plate of a specific size from the whole plate before the stamping process, and can adjust the blanking cutting size according to the actual processing conditions. Specifically, the blanking assembly includes two symmetrically arranged laser emitters, and the lower end of each laser emitter is fixedly connected to a cutting head for plate cutting. The laser emitter is integrally telescopically mounted on the driving slide, and can realize lateral movement cutting under the telescopic drive of the horizontal telescopic cylinder, and the driving slide can slide longitudinally along the limit slide under the drive of the sliding drive motor and the driving threaded rod, and use the cutting head to perform longitudinal movement cutting; further, the blanking assembly also includes a lower pressure plate arranged to be lifted and lowered, and the lower pressure plate can cooperate with the rising blanking bottom mold during the laser cutting process to clamp the whole plate in place, and can also press the stamping plate down after the cutting is completed to separate it from the whole plate.

[0036] The clamping and transferring assembly provided in the present invention can realize the continuous transfer of stamping plates between various links and different processing stations. Specifically, two longitudinally symmetrical transfer conveyor belts are provided in the clamping and transferring assembly, and the two ends of the transfer conveyor belts are respectively sleeved on the inner support rollers. The distance between the two transfer conveyor belts can be adjusted by controlling the telescopic cylinder to extend and retract, so as to completely clamp the stamping parts whose size changes during the stamping process and realize lateral transportation.

[0037] The induction heating assembly provided in the present invention can use a medium-frequency induction heating plate to uniformly induction heat the entire stamped sheet before stamping and forming. The transfer support seat arranged for lifting in the induction heating assembly can support and pick up the stamped sheet transported to a specific position, and after the induction heating is completed, the sheet is moved again between the two transfer conveyor belts for subsequent transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0039] Figure 1 It is a schematic cross-sectional view of the internal structure of each component in the present invention in the main viewing direction;

[0040] Figure 2 It is a schematic cross-sectional view of the internal structure of each component in the present invention in a top view direction;

[0041] Figure 3 It is a schematic cross-sectional view of the internal structure of the stamping and shaping component in the present invention in the side view direction;

[0042] Figure 4 It is a schematic cross-sectional view of the internal structure of the blanking assembly in the present invention in the side view direction;

[0043] Figure 5 It is an external overall schematic diagram of the present invention in the main viewing direction;

[0044] Figure 6 It is a schematic diagram of the overall exterior of the present invention when viewed from above.

[0045] In the figure: 1-stamping table, 2-support base, 3-connecting vertical plate, 4-blank material connection port, 5-heating connection port, 6-stamping connection port, 7-C-type side plate, 8-sliding drive motor, 9-driving threaded rod, 10-limiting slide, 11-driving slide, 12-horizontal telescopic cylinder, 13-laser generator, 14-cutting head, 15-support bridge plate, 16-pressing telescopic cylinder, 17-lower pressure plate, 18-conveying splint, 19-conveying roller, 20-conveying drive motor, 21-lifting top plate, 22-lifting telescopic cylinder, 23-power supply module, 24-medium frequency induction heating plate, 25- Vertical telescopic cylinder, 26-transfer support seat, 27-stamping support frame, 28-pneumatic telescopic cylinder, 29-stamping upper die, 30-rolling limit plate, 31-rolling forming wheel, 32-rolling drive motor, 33-displacement telescopic cylinder, 34-displacement drive plate, 35-stamping lower die, 36-arc forming groove, 37-hydraulic telescopic cylinder, 38-blanking bottom die, 39-cutting avoidance groove, 40-electrically controlled telescopic cylinder, 41-installation base, 42-adjustable telescopic cylinder, 43-square displacement block, 44-horizontal support plate, 45-inner support roller, 46-rotation drive motor, 47-transfer conveyor belt. DETAILED DESCRIPTION

[0046] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0047] like Figures 1 to 6 As shown, a punching and welding bridge shell stamping and forming device includes a stamping table 1. The stamping table 1 is a horizontally arranged square table. A horizontal support base 2 is provided directly below the stamping table 1. Two symmetrical connecting vertical plates 3 are fixedly connected to the two ends of the upper surface of the support base 2. The upper end of each connecting vertical plate 3 is fixedly connected to the lower surface of the stamping table 1. A blanking component, an induction heating component and a stamping and forming component are respectively provided on the stamping table 1. A clamping and transferring component is provided below the stamping table 1. A forming lower die group is provided on the support base 2 for lifting and lowering.

[0048] The upper surface of the punching table 1 is provided with a blanking connecting port 4, a heating connecting port 5 and a punching connecting port 6 in sequence, and the punching connecting port 6 is a cross-shaped port.

[0049] The blanking assembly includes two symmetrically arranged C-shaped side plates 7, which are laterally arranged on both sides of the blanking connection port 4. A sliding drive motor 8 is fixedly connected to the longitudinal outer end face of each C-shaped side plate 7. The end of the output shaft of the sliding drive motor 8 passes through the C-shaped side plate 7 and is fixedly connected to a longitudinal drive threaded rod 9. The end of the drive threaded rod 9 is rotatably supported on the longitudinal inner wall of the C-shaped side plate 7.

[0050] Each C-shaped side plate 7 is provided with a longitudinally extending limit slide 10, in which a driving slide 11 is clamped. Both ends of the driving slide 11 pass through the limit slide 10 and extend outwards, and the driving threaded rod 9 passes through the driving slide 11 and is threadedly connected thereto.

[0051] A horizontal telescopic cylinder 12 is fixedly connected to the inner end surface of each driving slide 11 , a laser generator 13 is fixedly connected to the telescopic end of the horizontal telescopic cylinder 12 , and a cutting head 14 is fixedly connected to the lower end of the laser generator 13 .

[0052] A laterally extending supporting bridge plate 15 is fixedly connected to the middle of the upper surface of the two C-shaped side plates 7 , a material pressing telescopic cylinder 16 is fixedly connected to the middle of the lower surface of the supporting bridge plate 15 , and a lower pressing plate 17 is fixedly connected to the lower telescopic end of the material pressing telescopic cylinder 16 .

[0053] Two symmetrical conveying clamps 18 are fixedly connected to each longitudinal side end face of the punching table 1, and a plurality of conveying rollers 19 are rotatably arranged between the two conveying clamps 18. The plurality of conveying rollers 19 are arranged on both longitudinal sides of the blanking connecting port 4. A conveying drive motor 20 is fixedly connected to the outer side wall of each conveying clamp 18, and the end of the output shaft of the conveying drive motor 20 passes through the conveying clamp 18 and is fixedly connected to the side end face of the conveying roller 19 at the end.

[0054] The induction heating assembly includes a horizontally arranged lifting top plate 21, which is arranged directly above the heating connecting port 5. The upper surface of the stamping table 1 is provided with four groups of lifting and telescopic cylinders 22 which are symmetrical in pairs. The four groups of lifting and telescopic cylinders 22 are laterally arranged on both sides of the stamping table 1. The upper telescopic ends of each group of lifting and telescopic cylinders 22 are respectively fixed to the lower surface of the lifting top plate 21. The upper surface of the lifting top plate 21 is fixed with a power supply module 23, and the lower surface of the lifting top plate 21 is fixed with a medium frequency induction heating plate 24. The power supply module 23 is connected to the medium frequency induction heating plate 24 for power supply.

[0055] A vertical telescopic cylinder 25 is fixedly connected to the center of the upper surface of the support base 2 , and a transfer support seat 26 is fixedly connected to the telescopic end of the vertical telescopic cylinder 25 . The size of the transfer support seat 26 is smaller than the size of the heating connecting port 5 .

[0056] The stamping forming assembly includes a stamping support frame 27, which is a U-shaped frame with its opening facing downward. The lower ends of the stamping support frame 27 span the stamping connecting port 6 and are fixedly connected to the upper surface of the stamping table 1. Two symmetrical pneumatic telescopic cylinders 28 are laterally fixedly connected to the upper edge of the inner top surface of the stamping support frame 27. A semi-cylindrical stamping upper die 29 is provided at the bottom of the stamping support frame 27 for lifting and lowering. The lower telescopic end of the pneumatic telescopic cylinder 28 is fixedly connected to the upper surface of the stamping upper die 29.

[0057] The stamping forming component also includes four rolling limit plates 30, which are symmetrically arranged in pairs above the stamping table 1 and on both sides of the stamping connecting port 6. The ends of the two laterally opposite rolling limit plates 30 are rotatably provided with rolling forming wheels 31. The corresponding rolling forming wheels 31 are fixedly connected to the lateral outer wall of each rolling limit plate 30 with a rolling drive motor 32, and the end of the output shaft of the rolling drive motor 32 passes through the rolling limit plate 30 and is fixedly connected to the rolling forming wheel 31.

[0058] Two symmetrical displacement telescopic cylinders 33 are fixedly connected to each longitudinal side end face of the stamping table 1, and the telescopic ends of the displacement telescopic cylinders 33 are fixedly connected to a vertical displacement driving plate 34. The ends of the two laterally opposite rolling limit plates 30 are fixedly connected to the longitudinal inner wall of the displacement driving plate 34.

[0059] The forming lower die group includes a stamping lower die 35 that is set to rise and fall. The stamping lower die 35 is arranged directly below the stamping connecting port 6. The size of the stamping lower die 35 is slightly smaller than the size of the stamping connecting port 6. An arc-shaped forming groove 36 is provided on the upper surface of the stamping lower die 35. Two longitudinally symmetrical hydraulic telescopic cylinders 37 are fixedly connected to the upper surface of the support base 2 corresponding to the stamping lower die 35. The upper telescopic end of the hydraulic telescopic cylinder 37 is fixedly connected to the lower surface of the stamping lower die 35.

[0060] The lower forming die set also includes a lifting and lowering blanking bottom die 38, which is arranged directly below the blanking connecting port 4. The size of the blanking bottom die 38 is slightly smaller than the size of the blanking connecting port 4. Four vertically intersecting cutting avoidance grooves 39 are opened on the upper surface of the blanking bottom die 38. Two longitudinally symmetrical electric-controlled telescopic cylinders 40 are fixedly connected to the upper surface of the support base 2 corresponding to the blanking bottom die 38, and the upper telescopic end of the electric-controlled telescopic cylinder 40 is fixedly connected to the lower surface of the blanking bottom die 38.

[0061] The clamping and transferring assembly includes two symmetrically arranged mounting bases 41, and the two mounting bases 41 are respectively fixed on the transverse outer walls of the two connecting vertical plates 3. Two vertically symmetrical adjustable telescopic cylinders 42 are respectively fixed on the longitudinal side end faces of each mounting base 41, and the telescopic ends of the adjustable telescopic cylinders 42 are fixed with square displacement blocks 43. Two vertically symmetrical horizontal support plates 44 are respectively fixed on the transverse inner end faces of each square displacement block 43. An inner support roller 45 is rotatably provided between the two horizontal support plates 44, and a rotating drive motor 46 is fixed to the lower surface of the horizontal support plate 44 at the bottom, and the output shaft end of the rotating drive motor 46 passes through the horizontal support plate 44 and is fixed to the center of the lower surface of the inner support roller 45. A transfer conveyor belt 47 is sleeved between the two laterally opposite inner support rollers 45, and the transfer conveyor belt 47 can clamp and convey the stamping parts of each process.

[0062] When the present invention is in use: first, one end of the flat plate to be processed is placed flat on the conveying roller 19, and the conveying drive motor 20 is started. The conveying drive motor 20 drives the conveying roller 19 to rotate, and the flat plate is conveyed longitudinally to the blanking assembly; the pressing telescopic cylinder 16 is controlled to extend, and the lower pressing plate 17 is driven to press down. At the same time, the electric control telescopic cylinder 40 is controlled to extend, and the blanking bottom die 38 is driven to rise to be flush with the upper surface of the punching table 1, so as to perform bidirectional extrusion positioning on the punching flat plate; two sliding drive motors 8 are started respectively, and the sliding drive motor 8 drives the driving threaded rod 9 to rotate, so as to control the driving slide 11 to slide longitudinally along the limit slide 10, and the laser generator 13 and the cutting head 14 are used to perform longitudinal laser on the plate. Cutting, and after the longitudinal laser cutting is completed, the horizontal telescopic cylinder 12 is controlled to extend to drive the laser generator 13 and the cutting head 14 to move horizontally, and horizontal laser cutting is performed to limit the stamping size. After the cutting is completed, the pressing telescopic cylinder 16 is controlled to extend and the electric control telescopic cylinder 40 is shortened, so as to realize the blanking of the cut piece; the conveying roller 19 continues to rotate, and the flat plate continues to be conveyed longitudinally, and prepares for continuous blanking; the adjustable telescopic cylinder 42 is controlled to shorten, and the four rotating drive motors 46 are started respectively. The rotating drive motor 46 drives the inner support roller 45 to rotate, thereby driving the transfer conveyor belt 47 to circulate and roll, and clamp the cut plate pieces that have been blanked from both sides, and the rolling transfer conveyor belt 47 will cut The plate is transferred from the blanking bottom die 38 to the transfer support seat 26, and the vertical telescopic cylinder 25 is controlled to extend. The transfer support seat 26 pushes the cut plate upward out of the heating connecting port 5 and makes it close to the medium frequency induction heating plate 24. The power supply module 23 supplies power to the medium frequency induction heating plate 24, thereby induction heating the plate. After heating, the vertical telescopic cylinder 25 is controlled to shorten, so that the heated plate drops below the stamping table 1 again, and the transfer conveyor belt 47 is used again to clamp the plate from both sides and transport it horizontally until the plate is transferred to the stamping lower die 35, and the hydraulic telescopic cylinder 37 is controlled to extend to drive the stamping lower die 35 to move upward through the stamping connecting port 6 until the upper surface of the plate abuts against the rolling forming wheel 31; start The pneumatic telescopic cylinder 28 is driven, and the pneumatic telescopic cylinder 28 controls the stamping upper die 29 to press down, and the arc-shaped opening in the middle of the punching and welding bridge shell is stamped and formed. At this time, the rolling forming wheel 31 can press and position the other parts of the plate; after the middle stamping is completed, the pneumatic telescopic cylinder 28 is controlled to retract, and the stamping lower die 35 is controlled to continue to rise, and at the same time, the rolling drive motor 32 is started, and the rolling drive motor 32 drives the rolling forming wheel 31 to rotate, and the displacement telescopic cylinder 33 is controlled to retract periodically, and the rolling forming wheel 31 is used to repeatedly roll and form the groove parts on both sides of the punching and welding bridge shell until the punching and welding bridge shell is completely formed; the hydraulic telescopic cylinder 37 is controlled to shorten, and the stamping lower die 35 is driven to move below the stamping table 1 to disassemble and remove the formed bridge shell.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A punching and welding bridge housing stamping and forming device, characterized in that: The invention comprises a stamping table (1), wherein the stamping table (1) is a horizontally arranged square table, a horizontal support base (2) is arranged directly below the stamping table (1), two symmetrical connecting vertical plates (3) are respectively fixedly connected to the two ends of the upper surface of the support base (2), and the upper end of each connecting vertical plate (3) is respectively fixedly connected to the lower surface of the stamping table (1), and a blanking component, an induction heating component and a stamping shaping component are respectively arranged on the stamping table (1), a clamping transfer component is arranged below the stamping table (1), and a lower forming die set is arranged on the support base (2) for lifting; The upper surface of the punching table (1) is provided with a blanking connection port (4), a heating connection port (5) and a punching connection port (6) in sequence, and the punching connection port (6) is a cross-shaped port; The stamping shaping component comprises a stamping support frame (27), the stamping support frame (27) being a U-shaped frame with an opening facing downward, the lower ends of the stamping support frame (27) spanning the stamping connecting port (6) and being fixedly connected to the upper surface of the stamping table (1), two symmetrical pneumatic telescopic cylinders (28) being fixedly connected laterally along the inner top surface of the stamping support frame (27), and the lower telescopic ends of the pneumatic telescopic cylinders (28) being fixedly connected to a semi-cylindrical stamping upper die (29); The stamping and shaping component further comprises four rolling limit plates (30), the four rolling limit plates (30) being symmetrically arranged in pairs above the stamping platform (1) and on both sides of the stamping connecting port (6), the ends of the two rolling limit plates (30) facing each other in the transverse direction being rotatably provided with rolling forming wheels (31), and a rolling drive motor (32) being fixedly connected to the transverse outer wall of each rolling limit plate (30) corresponding to the rolling forming wheel (31), and the end of the output shaft of the rolling drive motor (32) passing through the rolling limit plate (30) and being fixedly connected to the rolling forming wheel (31); Two symmetrical displacement telescopic cylinders (33) are respectively fixedly connected to each longitudinal side end face of the punching table (1); the telescopic ends of the displacement telescopic cylinders (33) are fixedly connected to a vertical displacement driving plate (34); and the ends of the two rolling limit plates (30) opposite to each other in the transverse direction are fixedly connected to the longitudinal inner side wall of the displacement driving plate (34); The molding lower die set comprises a stamping lower die (35) which is arranged to be lifted, the stamping lower die (35) being arranged directly below the stamping connecting opening (6), the size of the stamping lower die (35) being slightly smaller than the size of the stamping connecting opening (6), and the upper surface of the stamping lower die (35) being provided with an arc-shaped molding groove (36); The blanking assembly comprises two symmetrically arranged C-shaped side plates (7), the two C-shaped side plates (7) being arranged on both sides of the blanking communication port (4) in the transverse direction, a sliding drive motor (8) being fixedly connected to the longitudinal outer end surface of each C-shaped side plate (7), the output shaft end of the sliding drive motor (8) passing through the C-shaped side plate (7) and being fixedly connected to a longitudinal drive threaded rod (9), the end of the drive threaded rod (9) being rotatably supported on the longitudinal inner wall of the C-shaped side plate (7); Each of the C-shaped side plates (7) is provided with a longitudinally extending limit slide (10), a driving slide (11) is mounted in the limit slide (10), two ends of the driving slide (11) respectively pass through the limit slide (10) and extend outward, and the driving threaded rod (9) passes through the driving slide (11) and is threadedly connected thereto; A horizontal telescopic cylinder (12) is fixedly connected to the inner end surface of each driving slide (11), a laser generator (13) is fixedly connected to the telescopic end of the horizontal telescopic cylinder (12), and a cutting head (14) is fixedly connected to the lower end of the laser generator (13); A laterally extending support bridge plate (15) is fixedly connected to the middle of the upper surface of the two C-shaped side plates (7), a material pressing telescopic cylinder (16) is fixedly connected to the middle of the lower surface of the support bridge plate (15), and a lower pressing plate (17) is fixedly connected to the lower telescopic end of the material pressing telescopic cylinder (16).

2. The punching and welding bridge housing stamping and forming device according to claim 1, characterized in that: Two symmetrical conveying clamps (18) are fixedly connected to each longitudinal side end face of the punching table (1), and a plurality of conveying rollers (19) are rotatably arranged between the two conveying clamps (18). The plurality of conveying rollers (19) are arranged on both longitudinal sides of the blanking connection port (4). A conveying drive motor (20) is fixedly connected to the outer side wall of each conveying clamp (18), and the output shaft end of the conveying drive motor (20) passes through the conveying clamp (18) and is fixedly connected to the side end face of the conveying roller (19) at the end.

3. The punching and welding bridge housing stamping and forming device according to claim 1, characterized in that: The induction heating assembly comprises a horizontally arranged lifting top plate (21), the lifting top plate (21) being arranged directly above the heating connecting port (5), the upper surface of the stamping table (1) being respectively provided with four groups of lifting and telescopic cylinders (22) symmetrical in pairs, the four groups of lifting and telescopic cylinders (22) being laterally arranged on both sides of the stamping table (1), the upper telescopic ends of each group of lifting and telescopic cylinders (22) being respectively fixedly connected to the lower surface of the lifting top plate (21), the upper surface of the lifting top plate (21) being fixedly connected with a power supply module (23), the lower surface of the lifting top plate (21) being fixedly connected with a medium-frequency induction heating plate (24), the power supply module (23) being connected to the medium-frequency induction heating plate (24) for power supply.

4. The punching and welding bridge housing stamping and forming device according to claim 3, characterized in that: A vertical telescopic cylinder (25) is fixedly connected to the center of the upper surface of the support base (2), and a transfer support seat (26) is fixedly connected to the telescopic end of the vertical telescopic cylinder (25), and the size of the transfer support seat (26) is smaller than the size of the heating connection port (5).

5. The punching and welding bridge housing stamping and forming device according to claim 1, characterized in that: The lower forming die set further comprises a bottom die (38) for blanking which is arranged to be lifted and lowered. The bottom die (38) for blanking is arranged directly below the blanking connecting opening (4). The size of the bottom die (38) for blanking is smaller than the size of the blanking connecting opening (4). The upper surface of the bottom die (38) for blanking is provided with four vertically intersecting cutting avoidance grooves (39).

6. The punching and welding bridge housing stamping and forming device according to claim 5, characterized in that: The upper surface of the support base (2) is fixedly connected to two longitudinally symmetrical hydraulic telescopic cylinders (37) corresponding to the stamping lower die (35), and the upper telescopic ends of the hydraulic telescopic cylinders (37) are fixedly connected to the lower surface of the stamping lower die (35); Two longitudinally symmetrical electrically controlled telescopic cylinders (40) are fixedly connected to the upper surface of the support base (2) corresponding to the blanking bottom die (38), and the upper telescopic ends of the electrically controlled telescopic cylinders (40) are fixedly connected to the lower surface of the blanking bottom die (38).

7. The punching and welding bridge housing stamping and forming device according to claim 1, characterized in that: The clamping transfer assembly comprises two symmetrically arranged mounting bases (41), the two mounting bases (41) being respectively fixedly connected to the transverse outer walls of the two connecting vertical plates (3), and two vertically symmetrical adjustable telescopic cylinders (42) being respectively fixedly connected to the longitudinal side end surface of each mounting base (41), and the telescopic ends of the adjustable telescopic cylinders (42) being fixedly connected to square displacement blocks (43).

8. The punching and welding bridge housing stamping and forming device according to claim 7, characterized in that: Two horizontal support plates (44) symmetrically arranged in an upper and lower direction are fixedly connected to the transverse inner end surface of each square displacement block (43); an inner support roller (45) is rotatably arranged between the two horizontal support plates (44); a rotation drive motor (46) is fixedly connected to the lower surface of the lower horizontal support plate (44); the output shaft end of the rotation drive motor (46) passes through the horizontal support plate (44) and is fixedly connected to the center of the lower surface of the inner support roller (45); a transfer conveyor belt (47) is sleeved between the two inner support rollers (45) opposite to each other in the laterally direction; the transfer conveyor belt (47) can clamp and convey the stamping parts in each process.

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