Rail car metal part forming machining method

Abstract

The invention relates to the field of rail car metal part stamping, in particular to a rail car metal part forming machining method which is completed through cooperation of a stamping forming machine. The stamping forming machine comprises a base, a conveying frame is fixedly connected to the upper portion of the rear side of the base, and a steel coil is installed in the conveying frame; a stamping mechanism used for stamping the steel plate on the front section is arranged above the front side of the base, and a leveling and pushing mechanism used for leveling and conveying the steel coil drawn out of the conveying frame is arranged between the stamping mechanism and the conveying frame. The stamping mechanism and the leveling and pushing mechanism are used in cooperation, flat and straight steel plates can be conveyed to the position between the upper die and the lower die in a staged mode, overall work is in order, meanwhile, the upper die and the lower die are highly matched, remaining materials obtained after stamping can be cut off while hexagonal gasket machining is completed, and the machining efficiency is improved. And after stamping is completed, excess materials, crushed materials and the hexagonal gasket are automatically moved downwards by means of the lifting force of the stamping structure so as to be pushed down subsequently for discharging.

Description

Technical Field

[0001] This invention relates to the field of stamping technology for metal parts of rail vehicles, and particularly to a method for forming and processing metal parts of rail vehicles. Background Technology

[0002] Rail vehicles refer to vehicles that run on tracks such as subways, high-speed railways, and trains. A modern rail vehicle is a complex system assembled from tens of thousands of metal parts. Among them, the planar hexagonal gasket is a very important and common fastener in the metal parts of rail vehicles. It is generally formed by stamping process of stamping machine.

[0003] However, existing stamping machines for producing hexagonal gaskets only have stamping functions. During processing, they generally stamp finished steel plates, which are usually straightened steel coils (i.e., coiled steel plates) and then cut into small sections by a shearing machine. Therefore, straightening equipment and shearing machines are required separately, making the overall work process cumbersome and lacking in continuity. Secondly, after stamping, the excess material area of ​​each steel plate is relatively large, making transportation troublesome and requiring further improvement in work efficiency. Furthermore, after the hexagonal gaskets are formed, manual unloading is often used, which greatly reduces the overall work efficiency. Summary of the Invention

[0004] Technical problem to be solved: The present invention provides a method for forming and processing metal parts for rail vehicles, which can solve the above-mentioned problems.

[0005] Technical Solution: To achieve the above objectives, the present invention adopts the following technical solution: a method for forming and processing metal parts for rail vehicles, which is completed by a stamping forming machine. The stamping forming machine includes a base, a conveyor frame is fixedly connected to the upper rear side of the base, a steel coil is installed inside the conveyor frame, a stamping mechanism for stamping the front section of the steel plate is provided on the upper front side of the base, and a leveling and pushing mechanism for leveling and conveying the steel coil pulled out from the conveyor frame is provided between the stamping mechanism and the conveyor frame.

[0006] The stamping mechanism includes a top mounting plate located above the front side of the base. The four corners of the lower side of the top mounting plate are fixedly connected to the base via guide rods. A movable plate is slidably connected to the guide rods. The upper center of the movable plate is fixedly connected to the output end of a hydraulic cylinder. The hydraulic cylinder is fixedly connected to the top mounting plate. An upper die is fixedly connected to the lower side of the movable plate. A lower die is fixedly connected to the upper side of the base at the position corresponding to the upper die. A punching tool for processing hexagonal gaskets is fixedly connected to the lower rear side of the upper die. Several cutting tools are fixedly connected to the lower front side of the upper die at equal intervals along the front-back direction. An ejection assembly is provided inside the punching tool and on the cutting tools. An unloading assembly is provided on the lower die to control the punching tool and cutting tools to fall to the lower side of the base. Several lifting assemblies for elastically supporting the steel plate are symmetrically arranged on the lower die at the positions corresponding to the punching tool.

[0007] The leveling and pushing mechanism includes mounting frames that are symmetrically fixed to the upper side of the base. Several pressure roller groups are arranged equidistantly in the front-back direction between the mounting frames on the left and right sides. Each pressure roller group consists of two symmetrically distributed rollers. A leveling component for controlling the opposing movement of the upper and lower rollers is provided between the several pressure roller groups. A pushing component for achieving synchronous operation is provided at the left end of the several rollers.

[0008] As a preferred embodiment of the present invention, the ejection assembly includes an ejection plate two that is slidably and embedded in the die tool, and an ejection plate one that is slidably connected between several cutting tools. Several movable rods are fixedly connected to the upper side of both the ejection plate one and the ejection plate two. The upper ends of the movable rods slide through the interior of the upper die and are fixedly connected to a lifting plate. Several springs two are installed between the lifting plate and the upper inner wall of the upper die. The lower surfaces of both the ejection plate one and the ejection plate two are flush with the lower end face of the die tool.

[0009] As a preferred embodiment of the present invention, the unloading assembly includes unloading ports on the lower die corresponding to the positions of the ejector plate and the punch cutter. The unloading ports penetrate the base. The front unloading port is adapted to the shape of the ejector plate, and the rear unloading port is adapted to the shape of the punch cutter. A first alignment seat is slidably disposed in the front unloading port and a second alignment seat is slidably disposed in the rear unloading port. Buffer grooves are provided on the upper side of the first alignment seat corresponding to the position of the cutting tool, and on the upper side of the second alignment seat corresponding to the position of the punch cutter. Mounting posts are fixedly connected to the lower sides of both the first and second alignment seats, and connecting plates are fixedly connected to the lower ends of the mounting posts. The unloading assembly also includes connecting plates fixedly connected to the front and rear sides respectively. The guide frame on the same end of the plate has mounting blocks fixedly connected to the middle of the lower mold on both sides of the base. The mounting blocks on both sides are fixedly connected to the center pins at the height of the upper surface of the lower mold. Two X-shaped connecting arms are hinged to the center pins. The upper and lower ends of the connecting arms are fixedly connected to the connecting pins. The left and right sides of the movable plate and the side end faces of the left and right guide frames are provided with sliding grooves. The connecting pins at the upper ends of the two connecting arms on the same center pin are slidably connected to the sliding grooves on the movable plate. The connecting pins at the lower ends of the two connecting arms on the same center pin are slidably connected to the sliding grooves of the guide frames. A pusher component is provided on the lower side of the base to push the material off the alignment seats one and two.

[0010] As a preferred embodiment of the present invention, the pushing component includes a pushing electric push rod fixedly connected to the front side wall of the base. A U-shaped frame is fixedly connected to the rear end face of the output end of the pushing electric push rod. The front and rear sides of the U-shaped frame correspond to the positions of the front sides of the first and second alignment seats, respectively, and the U-shaped frame is located above the first and second alignment seats.

[0011] As a preferred embodiment of the present invention, the lifting assembly includes an embedded cylinder fixed to the lower mold, an installation rod slidably installed through the center of the embedded cylinder, a clamping wheel rotatably connected to the upper end of the installation rod, the clamping wheel being dumbbell-shaped, a stop plate fixedly connected to the lower end of the installation rod, a spring being installed between the stop plate and the bottom wall of the embedded cylinder, and an embedded groove for the clamping wheel to be embedded in the upper end of the embedded cylinder.

[0012] As a preferred embodiment of the present invention, the leveling assembly includes mounting seats rotatably connected to the left and right ends of each applicator roller via pins. Two mounting seats distributed on the same side and corresponding vertically are slidably connected between the upper and lower walls of the mounting frame via several sliding rods. Mounting seats that are horizontally adjacent on the same side are fixedly connected to each other via connecting rods. Bidirectional electric push rods are fixedly connected to the front ends of the mounting frames on both the left and right sides via fixing frames. The upper and lower output ends of the bidirectional electric push rods are fixedly connected to the adjacent mounting seats via Z-shaped frames.

[0013] As a preferred embodiment of the present invention, the pushing component includes a second bevel gear fixedly connected to the outer end of the pin on the left side of the roller, a support plate fixedly connected to the left side of the mounting base, a connecting sleeve rotatably connected to the support plate, a first bevel gear fixedly connected to the outer wall of the connecting sleeve, two first bevel gears corresponding to the upper and lower sides being symmetrically distributed, the upper first bevel gear meshing with the upper side of the second bevel gear, the lower first bevel gear meshing with the lower side of the second bevel gear, the centers of the two connecting sleeves corresponding to the upper and lower sides being connected to a limiting slide shaft through a spline engagement, the limiting slide shaft being rotatably connected between the upper and lower walls of the mounting frame, the upper ends of several limiting slide shafts extending to the outside of the mounting frame and being connected together through a chain and sprocket drive, the upper end of any one limiting slide shaft being fixedly connected to the output end of a motor, and the motor being fixedly connected to the outside of the left side mounting frame.

[0014] As a preferred embodiment of the present invention, the upper mold is symmetrically and fixedly connected to the rear end of the upper mold with brackets, and pressure rollers are rotatably connected between the lower ends of the two brackets. The lowest point of the pressure rollers is flush with the lower end face of the punching die.

[0015] As a preferred technical solution of the present invention, the method for forming and processing metal parts of rail vehicles specifically includes the following steps: S1: Install the steel coil onto the conveyor frame, then pass the starting end of the steel coil through the gaps between each pair of pressure rollers, and then the leveling and pushing mechanism controls multiple sticking rollers to flatten the steel plate at multiple points. The friction generated by multiple sticking rollers 33 close to the steel plate drives the steel plate to move forward in stages. The forward movement distance is the distance from the rear side of the lower die to the middle part.

[0016] S2: The forward-moving steel plate will enter the left and right rows of chucks, which will then transport and guide the steel plate.

[0017] S3: Then, the hydraulic cylinder 47 controls the movable plate 44 to drive the upper mold 43 and the lower mold 46 to perform stamping operations. After the steel plate is stamped, the spring 414 rebounds to control the mounting rod 412 to move upward and drive the clamping wheel 411 to control the steel plate to be lifted. The stamped hexagonal pad will automatically separate from the steel plate due to gravity and ejection. Beneficial effects

[0018] The stamping mechanism and ejection assembly used in this invention work together to crush the remaining material after stamping, and the unloading assembly converts the up-and-down movement power of the upper die into the opening and closing control power of the unloading port. This allows for centralized processing of the crushed material after stamping. The overall structure is relatively simple and easy to use. At the same time, the ejection assembly can automatically separate the steel plate residue and the finished product, further improving the automation effect and saving time and effort.

[0019] The stamping mechanism and leveling and pushing mechanism used in this invention work together to transport straight steel plates in stages between the upper and lower dies. The overall operation is orderly. At the same time, the upper and lower dies have a high degree of compatibility, which can cut off the stamping residue while processing the hexagonal shims, reducing the space occupied by the residue and facilitating subsequent collection. Furthermore, after stamping, the residual material and hexagonal shims are automatically moved down by the lifting force of the stamping structure for subsequent unloading.

[0020] The leveling and pushing mechanism used in this invention integrates conveying and leveling, and can level and convey steel plates by combining leveling components and pushing components, effectively ensuring the flatness of steel plates and further improving the stamping quality of gaskets. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the stamping forming machine of the present invention.

[0023] Figure 2 This is a schematic diagram of the left side of the stamping forming machine of the present invention.

[0024] Figure 3 This is a first-view three-dimensional structural diagram of the leveling and pushing mechanism on the stamping forming machine of the present invention.

[0025] Figure 4 This is a left-side view of the leveling and pushing mechanism on the stamping forming machine of the present invention.

[0026] Figure 5 This is a second-view three-dimensional structural diagram of the leveling and pushing mechanism on the stamping forming machine of the present invention.

[0027] Figure 6 This is the present invention. Figure 2 A magnified structural diagram of region A in the middle.

[0028] Figure 7 This is a three-dimensional structural diagram of the stamping mechanism on the stamping forming machine of the present invention.

[0029] Figure 8 This is a three-dimensional structural diagram of the unloading component on the stamping forming machine of the present invention.

[0030] Figure 9 This is a three-dimensional connection diagram of the ejector assembly, die tool, and cutting tool on the stamping forming machine of the present invention.

[0031] Figure 10 This is a schematic diagram of the left-side cross-sectional structure of the upper die of the stamping forming machine of the present invention.

[0032] In the diagram: 1. Base; 2. Conveyor frame; 3. Leveling and pushing mechanism; 31. Leveling component; 311. Z-shaped frame; 312. Bidirectional electric push rod; 313. Fixing frame; 314. Connecting rod; 315. Mounting seat; 316. Slide rod; 32. Pushing component; 321. Connecting sleeve; 322. Bevel gear one; 323. Support plate; 324. Limiting slide shaft; 325. Bevel gear two; 326. Motor; 33. Applying roller; 34. Mounting frame; 4. Stamping mechanism; 41. Lifting component; 411. Chess plate wheel; 412. Mounting rod; 413. Embedded cylinder; 414. Spring one; 415. Embedded groove; 42. Unloading component; 421. Connecting... 422. Pin; 423. Connecting arm; 424. Center pin; 425. Guide frame; 426. Mounting block; 427. Connecting plate; 428. Alignment seat one; 429. Alignment seat two; 420. Pushing component; 4291. U-shaped frame; 4292. Pushing electric push rod; 4210. Mounting column; 43. Upper die; 431. Punch die cutter; 432. Cutting cutter; 44. Movable plate; 45. Guide rod; 46. Lower die; 47. Hydraulic cylinder; 48. Top mounting plate; 49. Ejection assembly; 491. Ejection plate one; 492. Movable rod; 493. Ejection plate two; 494. Bracket; 495. Pressure roller; 496. Lifting plate; 497. Spring two. Detailed Implementation

[0033] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0034] See Figure 1 A method for forming and processing metal parts for rail vehicles is provided, which is completed by a stamping forming machine. The stamping forming machine includes a base 1, a conveyor frame 2 is fixedly connected to the upper rear side of the base 1, a steel coil is installed in the conveyor frame 2, a stamping mechanism 4 is provided on the upper front side of the base 1 for stamping the front section of the steel plate, and a leveling and pushing mechanism 3 is provided between the stamping mechanism 4 and the conveyor frame 2 for leveling and conveying the steel coil pulled out from the conveyor frame 2.

[0035] See Figure 1 , Figure 2 , Figure 7 and Figure 9The stamping mechanism 4 includes a top plate 48 disposed above the front side of the base 1. The four lower corners of the top plate 48 are fixedly connected to the base 1 via guide rods 45. A movable plate 44 is slidably connected to the guide rods 45. The upper center of the movable plate 44 is fixedly connected to the output end of a hydraulic cylinder 47. The hydraulic cylinder 47 is fixedly connected to the top plate 48. An upper die 43 is fixedly connected to the lower side of the movable plate 44. A lower die 46 is fixedly connected to the upper side of the base 1 at a position corresponding to the upper die 43. A component for... The die tool 431 for processing hexagonal gaskets has several cutting tools 432 fixedly connected to the front of the lower side of the upper die 43, which are equidistantly arranged in the front-back direction. An ejection assembly 49 is provided inside the die tool 431 and on the several cutting tools 432. An unloading assembly 42 is provided on the lower die 46 to control the die tool 431 and the cutting tools 432 to fall to the lower side of the base 1. Several lifting assemblies 41 for elastically supporting the steel plate are symmetrically arranged on the lower die 46 corresponding to the position of the die tool 431.

[0036] In actual operation, the hydraulic cylinder 47 controls the movable plate 44 to drive the upper mold 43 and the lower mold 46 to cooperate, so that the punching tool 431 punches the steel plate to process hexagonal gaskets. At the same time, the cutting tool 432 crushes the remaining material after punching for easy collection later.

[0037] See Figure 1 , Figure 3 , Figure 4 and Figure 5 The leveling and pushing mechanism 3 includes mounting frames 34 that are symmetrically fixed to the upper side of the base 1. Several pressure roller groups are arranged equidistantly in the front-back direction between the mounting frames 34 on the left and right sides. Each pressure roller group consists of two sticking rollers 33 that are symmetrically distributed vertically. A leveling component 31 for controlling the opposing movement of the two sticking rollers 33 is provided between the several pressure roller groups. A pushing component 32 for achieving synchronous operation is provided at the left end of the several sticking rollers 33.

[0038] In practice, several rollers 33 press and straighten the steel coil drawn from the conveyor frame 2, forming it into a steel plate, which is then conveyed to the stamping mechanism 4. By using the stamping mechanism 4 and the leveling and pushing mechanism 3 in conjunction, the rapid and automated processing of hexagonal gaskets can be completed.

[0039] See Figure 1 , Figure 2 , Figure 7 , Figure 9 and Figure 10The ejection assembly 49 includes an ejection plate 2 493 that is slidably and embedded in the die cutter 431, and an ejection plate 1 491 that is slidably connected between several cutting cutters 432. Several movable rods 492 are fixedly connected to the upper side of both the ejection plate 1 491 and the ejection plate 2 493. The upper ends of the movable rods 492 slide through the interior of the upper die 43 and are fixedly connected to a lifting plate 496. Several springs 2 497 are installed between the lifting plate 496 and the upper inner wall of the upper die 43. The lower surfaces of the ejection plate 1 491 and the ejection plate 2 493 are flush with the lower end face of the die cutter 431.

[0040] In actual operation, after the punching die 431 and the cutting die 432 move down to punch, the ejector plate 1 491 and the ejector plate 2 493 will move up a certain distance and compress the spring 2 497. The processed shim will be embedded in the punching die 431. When the punching die 431 and the cutting die 432 move up, the rebound force of the spring 2 497 will reset the ejector plate 1 491 and the ejector plate 2 493 to their original positions, and eject the shim and the steel plate fragments cut by the cutting die 432 onto the lower die 46.

[0041] See Figure 2 , Figure 7 , Figure 8 and Figure 9The unloading assembly 42 includes unloading ports on the lower die 46 corresponding to the positions of the ejector plate 491 and the punch cutter 431. The unloading ports penetrate the base 1. The front unloading port is adapted to the shape of the ejector plate 491, and the rear unloading port is adapted to the shape of the punch cutter 431. A first alignment seat 427 is slidably disposed in the front unloading port and a second alignment seat 428 is slidably disposed in the rear unloading port. Buffer grooves are provided on the upper side of the first alignment seat 427 corresponding to the position of the cutting tool 432, and on the upper side of the second alignment seat 428 corresponding to the position of the punch cutter 431. Mounting posts 4210 are fixedly connected to the lower sides of both the first and second alignment seats 427 and 428, and a connecting plate 426 is fixedly connected to the lower end of the mounting posts 4210. The unloading assembly 42 also includes connecting plates 426 fixedly connected to the front and rear sides respectively. 26. Guide frame 424 on the same end, mounting blocks 425 are fixedly connected to the left and right sides of the base 1 at the position corresponding to the middle of the lower mold 46. Center pins 423 are fixedly connected to the mounting blocks 425 at the position corresponding to the height of the upper surface of the lower mold 46. Two X-shaped connecting arms 422 are hinged to the center pins 423. Connecting pins 421 are fixedly connected to the upper and lower ends of the connecting arms 422. Slide grooves are opened on the left and right sides of the movable plate 44 and the side end faces of the left and right guide frames 424. The connecting pins 421 at the upper ends of the two connecting arms 422 on the same center pin 423 are slidably connected in the slide groove on the movable plate 44. The connecting pins 421 at the lower ends of the two connecting arms 422 on the same center pin 423 are slidably connected in the slide groove of the guide frame 424. A pusher component 429 is provided on the lower side of the base 1.

[0042] See Figure 2 , Figure 7 , Figure 8 and Figure 9 The pushing component 429 includes a pushing electric push rod 4292 fixedly connected to the front side wall of the base 1. A U-shaped frame 4291 is fixedly connected to the rear end face of the output end of the pushing electric push rod 4292. The front and rear sides of the U-shaped frame 4291 correspond to the front sides of the first alignment seat 427 and the second alignment seat 428, respectively, and the U-shaped frame 4291 is located above the first alignment seat 427 and the second alignment seat 428.

[0043] In actual operation, during the stamping stage, the downward movement of the movable plate 44 causes the connecting pin 421 at the upper end of the connecting arm 422 to move downward. Since the center connection position of the two connecting arms 422 is fixed, when the movable plate 44 moves downward, the connecting arm 422 rotates, increasing the angle between the two connecting arms 422. The connecting pin 421 at the lower end of the connecting arm 422 slides along the guide frame 424, simultaneously causing the guide frame 424 to move upward. The upward movement of the guide frame 424, through the connecting plate 426 and the mounting column 4210, causes the first alignment seat 427 and the second alignment seat 428 to move upward. The first alignment seat 427... Alignment seat 2 428 and ejector plate 1 491 and ejector plate 2 493 are respectively docked. The steel plate on the front side of the upper end face of the lower mold 46 is cut and the steel plate on the rear side of the upper end face of the lower mold 46 is stamped into hexagonal pads. Then, when the movable plate 44 moves up, the guide frame 424 moves down synchronously, so that alignment seat 1 427 and alignment seat 2 428 move down to the lower side of the base 1. Then, the U-shaped frame 4291 is controlled to move backward by the pusher electric push rod 4292, so that the front and rear sides of the U-shaped frame 4291 push down the material on alignment seat 1 427 and alignment seat 2 428 respectively.

[0044] See Figure 1 , Figure 2 , Figure 6 and Figure 7 The lifting assembly 41 includes an embedded cylinder 413 that is embedded and fixed on the lower mold 46. An installation rod 412 is slidably installed through the center of the embedded cylinder 413. A clamping wheel 411 is rotatably connected to the upper end of the installation rod 412. The clamping wheel 411 is dumbbell-shaped. A stop plate is fixedly connected to the lower end of the installation rod 412. A spring 414 is installed between the stop plate and the bottom wall of the embedded cylinder 413. An embedded groove 415 for the clamping wheel 411 to be embedded is opened at the upper end of the embedded cylinder 413.

[0045] In actual operation, the steel plate is conveyed and guided by the two rows of chuck wheels 411. When the upper die 43 and the lower die 46 are connected, the steel plate is pressed down, which drives the chuck wheels 411 to control the mounting rod 412 to move down and compress the spring 414. When the steel plate is in complete contact with the lower die 46, the chuck wheels 411 will be embedded in the embedding groove 415 to avoid interference. After the steel plate is stamped, the spring 414 rebounds and causes the mounting rod 412 to move up, which in turn drives the chuck wheels 411 to control the steel plate to lift up. The stamped hexagonal shim will automatically separate from the steel plate due to gravity and the pushing action of the ejector plate 493, thus achieving the automatic separation effect of the hexagonal shim. The separation of the finished hexagonal shim from the steel plate does not require a large size. That is, the spring 414 is compressed to the thickness of a steel plate and then rebounds to the thickness of a steel plate to achieve separation. For the stamping stage, the height difference between the front and back of the steel plate can be ignored.

[0046] See Figure 1 , Figure 3 and Figure 5The leveling component 31 includes mounting seats 315 rotatably connected to the left and right ends of each applicator roller 33 via pins. Two mounting seats 315 distributed on the same side and corresponding vertically are slidably connected between the upper and lower walls of the mounting frame 34 via several sliding rods 316. The mounting seats 315 that are horizontally adjacent on the same side are fixedly connected to each other via connecting rods 314. The front ends of the mounting frames 34 on both the left and right sides are fixedly connected to bidirectional electric push rods 312 via fixing frames 313. The upper and lower output ends of the bidirectional electric push rods 312 are fixedly connected to the adjacent mounting seats 315 via Z-shaped frames 311.

[0047] In actual operation, the bidirectional electric push rod 312 drives the Z-shaped frame 311 to control the two rows of mounting seats 315 on the upper and lower sides to move synchronously towards each other. The movement of the corresponding mounting seats 315 towards each other controls the movement of the two applicator rollers 33 towards each other, and the multiple applicator rollers 33 flatten the steel plate at multiple points.

[0048] See Figure 1 , Figure 3 , Figure 4 and Figure 5 The pushing component 32 includes a second bevel gear 325 fixedly connected to the outer end of the pin on the left side of the roller 33. A support plate 323 is fixedly connected to the left side of the mounting base 315. A connecting sleeve 321 is rotatably connected to the support plate 323. A first bevel gear 322 is fixedly connected to the outer wall of the connecting sleeve 321. The two corresponding first bevel gears 322 are symmetrically distributed. The upper bevel gear 322 meshes with the upper side of the upper bevel gear 325, and the lower bevel gear 322 meshes with the lower side of the lower bevel gear 325. The centers of the two corresponding connecting sleeves 321 are connected to a limiting slide shaft 324 through a spline connection. The limiting slide shaft 324 is rotatably connected between the upper and lower walls of the mounting frame 34. The upper ends of several limiting slide shafts 324 extend to the outside of the mounting frame 34 and are connected by a chain and sprocket drive. The upper end of any one of the limiting slide shafts 324 is also fixedly connected to the output end of the motor 326. The motor 326 is fixedly connected to the outside of the left mounting frame 34.

[0049] In actual operation, the motor 326 controls the rotation of the limit slide shaft 324 connected to it. The chain and sprocket drive make all the limit slide shafts 324 rotate synchronously. The limit slide shafts 324 drive the bevel gear 322 to rotate. The bevel gear 322 drives the bevel gear 325 to rotate, which controls the rotation of the applicator roller 33. The two corresponding bevel gears 322 rotate synchronously in opposite directions. The multiple applicator rollers 33 approach the steel plate and generate friction, which drives the steel plate to move forward.

[0050] See Figure 2 , Figure 7 and Figure 9The upper mold 43 is symmetrically and fixedly connected to the rear end of the left and right sides of the bracket 494. The lower ends of the two side brackets 494 are rotatably connected to the pressure roller 495. The lowest point of the pressure roller 495 is flush with the lower end face of the punching die 431.

[0051] In actual operation, the steel plate is pressed down by the pressure roller 495 to keep the section of steel plate between the upper die 43 and the lower die 46 flat, so as to avoid the steel plate in the rear section of the upper die 43 and the lower die 46 from tilting too much and affecting the overall stamping balance.

[0052] See Figures 1-10 The method for forming and processing metal parts for rail vehicles specifically includes the following steps: S1: The steel coil is installed on the conveyor frame 2, and then the starting end of the steel coil is passed between each pair of pressure roller groups. Then, the bidirectional electric push rod 312 drives the Z-shaped frame 311 to control the upper and lower mounting seats 315 to move synchronously in opposite directions. The upper and lower corresponding mounting seats 315 move in opposite directions to control the two pressing rollers 33 to move in opposite directions. Multiple pressing rollers 33 flatten the steel plate at multiple points. At the same time, the motor 326 is run in stages to control any one of the limit sliding shafts 324 to rotate. The chain and sprocket drive makes all the limit sliding shafts 324 rotate synchronously. The limit sliding shafts 324 drive each bevel gear 1 322 to rotate. Each bevel gear 1 322 drives each bevel gear 2 325 to rotate to control each pressing roller 33 to rotate. Multiple pressing rollers 33 approach the steel plate to generate friction and drive the steel plate to move forward in stages. The forward movement distance is the distance from the rear side of the lower mold 46 to its middle part.

[0053] S2: The forward-moving steel plate will enter the left and right rows of the chuck wheels 411, and the left and right rows of the chuck wheels 411 will transport and guide the steel plate.

[0054] S3: Then, the hydraulic cylinder 47 controls the movable plate 44 to drive the upper die 43 and lower die 46 to move. After the punching tool 431 and the cutting tool 432 move down to punch, the ejector plate 491 and ejector plate 493 will move up by the thickness of a steel plate to compress the spring 497. Due to the friction between the tool and the material, the punching tool 431 will have a machined shim embedded in it, and there will be scrap material between each cutting tool 432. After the punching tool 431 and the cutting tool 432 move up, the spring 497 will rebound, causing the ejector plate 491 and ejector plate 493 to move up. 93 returns to its original position, ejecting the embedded shims and scrap onto the lower die 46. Simultaneously, when the upper die 43 and the lower die 46 are joined, the steel plate is pressed down, causing the clamping wheel 411 to control the mounting rod 412 to move down and compress the spring 414. When the steel plate is fully in contact with the lower die 46, the clamping wheel 411 will be embedded in the embedding groove 415 to avoid interference. Then, after the steel plate is stamped, the spring 414 rebounds and controls the mounting rod 412 to move up, causing the clamping wheel 411 to control the steel plate to be lifted. The stamped hexagonal shims will automatically separate from the steel plate due to gravity and ejection.

[0055] S4: During the stamping stage of step S3, the downward movement of the movable plate 44 causes the connecting pin 421 at the upper end of the connecting arm 422 to move downward. Since the center connection position of the two connecting arms 422 is fixed, when the movable plate 44 moves downward, the connecting arm 422 rotates, and the angle between the two connecting arms 422 increases. The connecting pin 421 at the lower end of the connecting arm 422 slides along the guide frame 424, simultaneously causing the guide frame 424 to move upward. The upward movement of the guide frame 424, through the connecting plate 426 and the mounting column 4210, causes the first alignment seat 427 and the second alignment seat 428 to move upward. 27 and the second alignment seat 428 are respectively connected to the first ejector plate 491 and the second ejector plate 493. The steel plate on the front side of the upper end face of the lower die 46 is cut, and the steel plate on the rear side of the upper end face of the lower die 46 is stamped into a hexagonal pad. Then, when the movable plate 44 moves up, the guide frame 424 moves down synchronously, so that the first alignment seat 427 and the second alignment seat 428 move down to the lower side of the base 1. Then, the U-shaped frame 4291 is moved backward by the pusher electric push rod 4292, so that the front and rear sides of the U-shaped frame 4291 push down the material on the first alignment seat 427 and the second alignment seat 428 respectively.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A press forming machine comprising a base (1), characterized in that: A conveyor frame (2) is fixedly connected to the upper rear side of the base (1). A steel coil is installed inside the conveyor frame (2). A stamping mechanism (4) for stamping the front section of the steel plate is provided above the front side of the base (1). A leveling and pushing mechanism (3) for leveling and conveying the steel coil pulled out from the conveyor frame (2) is provided between the stamping mechanism (4) and the conveyor frame (2). The stamping mechanism (4) includes a top plate (48) located above the front side of the base (1). The four corners of the bottom side of the top plate (48) are fixedly connected to the base (1) via guide rods (45). A movable plate (44) is slidably connected to the guide rods (45). The center of the upper side of the movable plate (44) is fixedly connected to the output end of the hydraulic cylinder (47). The hydraulic cylinder (47) is fixedly connected to the top plate (48). An upper die (43) is fixedly connected to the lower side of the movable plate (44). A lower die (44) is fixedly connected to the upper side of the base (1) at a position corresponding to the upper die (43). 6) A punching tool (431) for processing hexagonal gaskets is fixedly connected to the lower rear part of the upper die (43). Several cutting tools (432) are equidistantly arranged in the front and back directions. An ejection assembly (49) is provided inside the punching tool (431) and on the several cutting tools (432). An unloading assembly (42) is provided on the lower die (46). Several lifting assemblies (41) for elastic support of steel plates are symmetrically arranged on the lower die (46) corresponding to the position of the punching tool (431). The leveling and pushing mechanism (3) includes mounting brackets (34) that are symmetrically fixed to the upper side of the base (1). Several pressure roller groups are arranged equidistantly in the front-back direction between the mounting brackets (34) on the left and right sides. Each pressure roller group consists of two symmetrically distributed rollers (33). A leveling component (31) for controlling the opposing movement of the upper and lower rollers (33) is provided between the several pressure roller groups. A pushing component (32) for achieving synchronous operation is provided at the left end of the several rollers (33).

2. A press forming machine according to claim 1, characterized in that: The ejection assembly (49) includes an ejection plate two (493) that is slidably and embedded in the punching tool (431) and an ejection plate one (491) that is slidably inserted between each cutting tool (432). Several movable rods (492) are fixedly connected to the upper side of both the ejection plate one (491) and the ejection plate two (493). The upper ends of the movable rods (492) slide through the interior of the upper mold (43) and are fixedly connected to a lifting plate (496). Several springs two (497) are installed between the lifting plate (496) and the upper inner wall of the upper mold (43). The lower surfaces of the ejection plate one (491) and the ejection plate two (493) are flush with the lower end face of the punching tool (431).

3. The stamping forming machine according to claim 2, characterized in that: The unloading assembly (42) includes a discharge port on the lower die (46) corresponding to the positions of the ejector plate (491) and the punch cutter (431). The discharge port passes through the base (1). The front discharge port is adapted to the shape of the ejector plate (491), and the rear discharge port is adapted to the shape of the punch cutter (431). A matching seat (427) is slidably arranged in the front discharge port, and a matching seat (428) is slidably arranged in the rear discharge port. A buffer groove is provided on the upper side of the matching seat (427) corresponding to the position of the cutting tool (432), and on the upper side of the matching seat (428) corresponding to the position of the punch cutter (431). A mounting post (4210) is fixedly connected to the lower side of the matching seat (4210), and a connecting plate (426) is fixedly connected to the lower end of the mounting post (4210).

4. A stamping forming machine according to claim 3, characterized in that: The unloading assembly (42) also includes guide frames (424) fixedly connected to the same end of the front and rear connecting plates (426). Mounting blocks (425) are fixedly connected to the left and right sides of the base (1) at positions corresponding to the middle of the lower mold (46). Center pins (423) are fixedly connected to the mounting blocks (425) at positions corresponding to the height of the upper surface of the lower mold (46). Two X-shaped connecting arms (422) are hinged to the center pins (423). Connecting pins (421) are fixedly connected to both ends of the connecting arms (422). The movable plate (424)... 4) Slide grooves are provided on the left and right sides and the side end faces of the left and right guide frames (424). The connecting pins (421) at the upper ends of the two connecting arms (422) on the same central pin (423) are slidably connected in the slide groove on the movable plate (44). The connecting pins (421) at the lower ends of the two connecting arms (422) on the same central pin (423) are slidably connected in the slide groove of the guide frame (424). A pusher (429) is provided on the lower side of the base (1) for pushing the material on the first alignment seat (427) and the second alignment seat (428) down.

5. A stamping forming machine according to claim 4, characterized in that: The pushing component (429) includes a pushing electric push rod (4292) fixedly connected to the front side wall of the base (1). A U-shaped frame (4291) is fixedly connected to the rear end face of the output end of the pushing electric push rod (4292). The front and rear sides of the U-shaped frame (4291) correspond to the front sides of the first alignment seat (427) and the second alignment seat (428) respectively, and the U-shaped frame (4291) is located above the first alignment seat (427) and the second alignment seat (428).

6. A stamping forming machine according to claim 1, characterized in that: The lifting assembly (41) includes an embedded cylinder (413) embedded and fixed on the lower mold (46). An installation rod (412) is slidably installed through the center of the embedded cylinder (413). A clamping wheel (411) is rotatably connected to the upper end of the installation rod (412). The clamping wheel (411) is dumbbell-shaped. A stop plate is fixedly connected to the lower end of the installation rod (412). A spring (414) is installed between the stop plate and the bottom wall of the embedded cylinder (413). An embedded groove (415) for the clamping wheel (411) to be embedded is opened at the upper end of the embedded cylinder (413).

7. A stamping forming machine according to claim 1, characterized in that: The leveling assembly (31) includes mounting seats (315) rotatably connected to the left and right ends of each applicator roller (33) via pins. Two mounting seats (315) distributed on the same side and correspondingly distributed vertically are slidably connected between the upper and lower walls of the mounting frame (34) via several sliding rods (316). The mounting seats (315) that are horizontally adjacent on the same side are fixedly connected to each other via connecting rods (314). The front ends of the mounting frames (34) on both the left and right sides are fixedly connected to bidirectional electric push rods (312) via fixing frames (313). The upper and lower output ends of the bidirectional electric push rods (312) are fixedly connected to the adjacent mounting seats (315) via Z-shaped frames (311).

8. A stamping forming machine according to claim 7, characterized in that: The pushing component (32) includes a second bevel gear (325) fixedly connected to the outer end of the left pin of the applicator roller (33). A support plate (323) is fixedly connected to the left side of the mounting base (315). A connecting sleeve (321) is rotatably connected to the support plate (323). A first bevel gear (322) is fixedly connected to the outer wall of the connecting sleeve (321). The two first bevel gears (322) are symmetrically distributed, with the upper bevel gear (322) meshing with the upper bevel gear (325) and the lower bevel gear (322) meshing with the lower bevel gear (325). The two (325) are meshed together on the lower side. The centers of the two corresponding upper and lower connecting sleeves (321) are connected to the limit slide shaft (324) through spline engagement. The limit slide shaft (324) is rotatably connected between the upper and lower walls of the mounting frame (34). The upper ends of several limit slide shafts (324) extend to the outside of the mounting frame (34) and are connected together through chain and sprocket drive. The upper end of any one limit slide shaft (324) is also fixedly connected to the output end of the motor (326). The motor (326) is fixedly connected to the outside of the left mounting frame (34).

9. A stamping forming machine according to claim 1, characterized in that: The upper mold (43) is symmetrically and fixedly connected to the left and right rear ends of the brackets (494). The lower ends of the two brackets (494) are rotatably connected to the pressure rollers (495). The lowest point of the pressure rollers (495) is flush with the lower end face of the punching die (431).

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