Punching and discharging system for automobile sheet metal parts

Abstract

The embodiment of the invention provides an automobile sheet metal part punching and discharging system, and relates to the technical field of discharging. An automobile sheet metal part punching and discharging system comprises a stamping die and conveying belts oppositely arranged below the blanking portion of the stamping die, the conveying belts are arranged on the peripheral face of a bottom plate in a sleeving mode, first limiting holes are formed in the two sides of the outer surface of the bottom plate respectively, and meanwhile limiting columns capable of stretching and retracting for displacement are arranged in the first limiting holes. One end of the limiting column extends towards the upper portion of the conveying belt, a baffle is arranged on the surface of the conveying belt, the surface of the baffle is fixedly connected with the end of the limiting column, the conveying mechanism is responsible for material transferring, the adjustable limiting device guarantees the conveying track, and the linkage dust removal mechanism removes production pollution in real time. And the roller brushes which are arranged synchronously ensure that the finally output materials are tidy and clean.

Description

Technical Field

[0001] This invention belongs to the field of material layout technology, and in particular relates to a punching and layout system for automotive sheet metal parts. Background Technology

[0002] Sheet metal punching is a common process in manufacturing. In addition to forming the workpiece, this process generates a large amount of blank material and metal dust. Efficient and automated collection and processing of these byproducts is crucial for maintaining a clean production line, ensuring stable equipment operation, protecting the health of maintenance personnel, and reducing overall costs.

[0003] In the prior art, such as the solution disclosed in prior art document CN111112443A, an integrated material discharge approach is provided. This approach uses a through-type discharge channel and internal conveyor belt on the base to uniformly transport the material falling from multiple stamping stations to a collection point, replacing the traditional decentralized collection boxes, reducing the frequency of manual intervention, and optimizing the production line layout. This approach also includes fixed baffles on both sides of the discharge channel to guide the falling material to the middle of the conveyor belt, preventing it from falling into gaps in the equipment.

[0004] However, in actual large-scale, continuous production applications, this discharge structure still reveals some technical bottlenecks that affect long-term operational efficiency and stability, especially in terms of reliable material conveying and precise dust control: Regarding the reliability of unloading conveyors, while fixed-gap side guards can restrain most unloading materials, there is still a risk that some metal materials may get stuck in the gap between the side guards and the conveyor belt's bearing surface. Once jamming occurs, it may not only hinder the smooth discharge of unloading materials, but in severe cases, it may even scratch the conveyor belt surface or interfere with its normal operation, requiring machine shutdown for manual cleaning and affecting production continuity. Summary of the Invention

[0005] This application aims to at least solve one of the technical problems existing in the prior art, namely the risk of jamming during the material feeding process. To this end, this application proposes a punching and feeding system for automotive sheet metal parts.

[0006] To achieve the above objectives, the specific technical solution of the present invention is as follows: A punching and feeding system for automotive sheet metal parts includes a stamping die and a conveyor belt disposed opposite to each other below the stamping die. The conveyor belt is sleeved on the outer circumferential surface of a base plate, and first limiting holes are respectively opened on both sides of the outer surface of the base plate. At the same time, a limiting post capable of telescopic displacement is provided inside the first limiting hole, and one end of the limiting post extends upward toward the conveyor belt. A baffle is provided on the surface of the conveyor belt, wherein the surface of the baffle is fixedly connected to the end of the limiting post.

[0007] Preferably, the outer surface of the base plate is provided with second limiting holes on both sides, wherein the second limiting holes are spaced apart from the first limiting holes and are arranged horizontally, and a limiting tube extends into the second limiting hole from one side of the outer surface of the baffle.

[0008] Preferably, one end of the limiting tube has a through hole, and the inner ring wall of the hole has an internal thread. The baffle above the conveyor belt is arranged in two opposite directions, and a threaded rod is threadedly connected inside the opening of the two limiting tubes.

[0009] Preferably, a second dust suction hole is provided on the upper surface of the base plate below the vertically opposite part of the stamping die, wherein the second dust suction hole communicates with the dust suction chamber opened inside the base plate, and a first dust suction hole is provided on the surface of the conveyor belt.

[0010] Preferably, the front of the base plate is provided with a vent, which communicates with the interior of the dust collection chamber. A rotatable impeller is movably arranged at the opening of the vent, and a second sprocket is fixed at the shaft of the impeller. A first sprocket is also fixed on the shaft at the output end of the motor.

[0011] Preferably, a chain is fitted between the first sprocket and the second sprocket, and the diameter of the first sprocket is larger than that of the second sprocket.

[0012] Preferably, two opposing fixed frames are fixed on one side of the support surface, and a first roller shaft that can rotate is provided between the two opposing fixed frames, while the first roller shaft is located above the conveyor belt.

[0013] Preferably, the outer circumferential surface of the first roller shaft is also evenly distributed with roller brushes, and the height of the first roller shaft from the conveyor belt is sufficient for individual materials to pass through, and a third sprocket is fixed to the end of the first roller shaft near the first sprocket.

[0014] Preferably, the punching part is disposed opposite to the stamping die above the punching die, and a hydraulic press is disposed opposite to the punching part above the punching part.

[0015] Preferably, the hydraulic press is fixed to the top of the bracket, wherein the punching parts and the stamping die are placed inside the bracket, and a base is also fixed to the bottom of the bracket.

[0016] The automotive sheet metal punching and layout system of the present invention has the following advantages: 1. This automotive sheet metal parts punching and feeding system, driven by a single motor, achieves synchronized mechanical operation of three core functions: conveyor belt transport, negative pressure dust collection, and roller brush finishing. From punching completion to neat output, the sheet metal parts undergo a fully automated, integrated processing flow: the conveyor mechanism handles material transfer, adjustable limit devices ensure the conveying trajectory, a linked dust removal mechanism instantly removes production contaminants, and the synchronously finishing roller brushes ensure the final output material is neat and clean. The entire working principle embodies a high degree of mechatronics integration, ensuring efficient production while also considering environmental protection and product quality improvement. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the exploded structure of the support of the present invention; Figure 3 This is a schematic diagram of the conveyor belt structure of the present invention; Figure 4 This is a schematic diagram of the exploded structure of the conveyor belt and base plate of the present invention; Figure 5 This is a top view of the conveyor belt structure of the present invention. Figure 1 ; Figure 6 For the purposes of this invention Figure 5 Schematic diagram of the cross-sectional structure of the middle AA section; Figure 7 This is a top view of the conveyor belt structure of the present invention. Figure 2 ; Figure 8 For the purposes of this invention Figure 7 Schematic diagram of the cross-sectional structure of the middle BB section; Figure 9 This is a schematic diagram of the first roller shaft structure of the present invention.

[0019] The markings in the diagram are as follows: 1. Base; 11. Bracket; 111. Conveyor belt trough; 112. Fixing frame; 12. Hydraulic press; 13. Punching part; 14. Stamping die; 2. Base plate; 21. Conveyor belt; 211. First dust suction hole; 22. Second roller shaft; 23. First limiting hole; 24. Dust suction chamber; 241. Air hole; 242. Impeller; 243. Second sprocket; 25. Second dust suction hole; 26. Second limiting hole; 3. Motor; 31. First sprocket; 32. Chain; 4. Baffle; 41. Limiting post; 42. Limiting tube; 43. Threaded rod; 5. First roller shaft; 51. Roller brush; 52. Third sprocket. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1-4 As shown, this invention discloses a punching and layout system for automotive sheet metal parts. The punching system, as the core processing unit of the entire device, is crucial to the integrity and reliability of its technical solution. The punching system mainly consists of a rigid support structure, a power unit, an execution mold, and auxiliary components working together. Specifically, the system includes a robust base 1, typically welded or cast from a thick, high-strength steel plate. Multiple leveling bolts can be installed on its bottom surface to ensure the entire equipment remains stably positioned on the work surface during high-speed stamping operations, effectively absorbing and dispersing vibrations and preventing fretting from affecting processing accuracy. Above the base 1, after precise alignment, a frame-type or column-type support 11 is securely installed. This support 11 can be a box-beam structure or welded from thick-walled square tubing, with internal reinforcing ribs, giving it extremely high bending and torsional stiffness, enabling it to withstand long-term cyclic impact loads from the stamping process without deformation.

[0022] At the center of the top crossbeam of the support 11, a hydraulic press 12, serving as the power source, is fixedly mounted using a high-strength bolt assembly. This hydraulic press 12 is a single-cylinder press with its piston rod extending vertically downwards. Vibration-damping pads are installed at the connection between the cylinder of the hydraulic press 12 and the top of the support 11 to further isolate high-frequency vibrations. The piston rod end of the hydraulic press 12 is coaxially and precisely aligned with a punching part 13 via a universal coupling or rigid flange. The lower end of the punching part 13 can be designed with various cutting edges according to the hole shape requirements of the sheet metal part to be processed, and undergoes special surface hardening treatment to enhance its wear resistance and service life. Directly below the punching part 13, precisely aligned, is a stamping die 14, or lower die, fixed to the central working platform inside the support 11. The stamping die 14 is typically made of die steel, and its cavity matches the cutting edge shape of the punching part 13. The gap between the two is precisely calculated and adjusted to ensure punching quality and extend die life. The work platform itself has a high degree of flatness, and the stamping die 14 is firmly locked in place by positioning keys and multiple clamping bolts to prevent displacement in any direction during the stamping process. The internal space of the bracket 11 provides a safe protective area for the stamping operation, and also facilitates the installation of guiding mechanisms such as die guide pillars and guide sleeves, ensuring the straightness and repeatability of the stamping process. The entire punching system, from the stable support of the base 1, to the rigid load-bearing of the bracket 11, to the precise drive of the hydraulic press 12, and finally to the completion of processing through the cooperation of the punching part 13 and the stamping die 14, forms a well-structured and reliable mechanical transmission chain.

[0023] like Figures 3-6 As shown, in order to automatically and orderly transfer the stamped sheet metal parts out of the processing area, the system integrates a set of efficient conveying and adjustable limiting mechanisms on the side of the support 11. Specifically, a rectangular conveyor belt trough 111 is opened on the side wall of the support 11 facing the material flow direction. The size of this trough opening must ensure that the largest sheet metal parts can pass through smoothly, while minimizing the weakening of the structural opening on the overall strength of the support. At the edge of the opening of the conveyor belt trough 111, a horizontally set base plate 2 is fixedly installed by continuous fillet welds or flange connections. The base plate 2, as the foundation of the conveying mechanism, has sufficient thickness and rigidity, and is usually made of aluminum alloy sheet or galvanized steel sheet, with its surface finely ground to ensure flatness and smoothness.

[0024] At both ends of the base plate 2 along its length, two freely rotatable second rollers 22 are mounted and supported by a pair of seated spherical or deep groove ball bearings. The axes of these two second rollers 22 are strictly parallel and perpendicular to the long side of the base plate 2. One is defined as the driving roller, and the other as the driven tension roller. An annular conveyor belt 21 with a specific coefficient of friction and tensile strength is tightly fitted onto the outer circumference of the two second rollers 22, thus forming a closed-loop conveying plane. The conveyor belt 21 can be selected as a rubber conveyor belt, PVC conveyor belt, or metal mesh belt as needed. Its surface may be embossed with patterns or coated with a rubber layer to increase friction with the bottom surface of the sheet metal and prevent slippage during conveying. The inner surface of the conveyor belt 21 maintains good contact with the outer surface of the second rollers 22, and power transmission is achieved by friction.

[0025] The driving power comes from a motor 3 fixedly mounted on one side of the front of the base plate 2. This motor 3 is typically an adjustable three-phase asynchronous motor or a servo motor to adapt to different production rhythms. The motor 3 is mounted on a specially designed fixed bracket with vibration-damping rubber pads, which is then securely connected to the side or bottom of the base plate 2 by bolts. This mounting method effectively suppresses the transmission of vibrations from the motor during operation to the conveying system. The output shaft of the motor 3 is directly connected to the shaft end of the second roller shaft 22, which serves as the driving roller, via a flexible coupling or a reducer such as a worm gear reducer or a gear reducer. When the motor 3 is powered on, its output torque directly drives the second roller shaft 22 to rotate, which in turn drives the conveyor belt 21 to circulate around the two second roller shafts 22 through friction. Sheet metal parts falling from the stamping die 14 land on the upper bearing surface of the conveyor belt 21 and are then smoothly conveyed forward, achieving automatic material discharge.

[0026] To ensure that sheet metal parts of various shapes can travel along a predetermined path during transportation and to prevent them from deviating, tipping over, or even getting stuck, the system is designed with a precise adjustable width limiting device. The core of this device lies in two sets of guide holes parallel to each other on both sides of the upper surface of the base plate 2. The first set is the first limiting hole 23, which are elongated oval holes or rectangular grooves extending longitudinally, perpendicular to the conveying direction. Each first limiting hole 23 is fitted with a limiting post 41 that can be extended, adjusted, and ultimately locked. The upper end of the limiting post 41 faces upwards and is fixedly connected to the bottom outer side of a long strip-shaped baffle 4 located above the bearing surface of the conveyor belt 21 by screws or welding. These two baffles 4 are parallel to each other, forming the two side walls of the guide channel for material transportation.

[0027] To further achieve stepless adjustment of the channel width, a second set of second limiting holes 26, parallel to the first limiting holes 23 but spaced at a certain distance, is also provided on the base plate 2. Their function is to provide additional horizontal guidance for the baffles 4. A limiting tube 42 is vertically fixedly connected to the lower outer side of each baffle 4 facing the base plate 2. The lower end of the limiting tube 42 is inserted into the corresponding second limiting hole 26 and can slide freely within the hole along the channel width direction. Each limiting tube 42 has a through hole with internal threads machined inwards at its bottom end. A bidirectional threaded rod 43 is horizontally installed between the two limiting tubes 42 corresponding to the two opposing baffles 4. The middle part of this threaded rod 43 is supported on the base plate 2 by a rolling bearing or sliding bearing seat, which allows the threaded rod 43 to rotate freely but strictly restricts its axial movement. The threads at both ends of the threaded rod 43 rotate in opposite directions, respectively engaging with the internal threaded holes at the bottom of the two limiting tubes 42.

[0028] When the operator uses a wrench or handwheel to rotate the threaded rod 43, since the threaded rod 43 is axially fixed and the limiting tube 42 is restricted to sliding horizontally within the second limiting hole 26, according to the motion principle of the threaded pair, the two limiting tubes 42 will drive the baffles 4 on them to move towards or away from each other. In this way, the operator can flexibly and precisely adjust the distance between the two baffles 4 according to the actual width of the sheet metal being conveyed, forming the most suitable guide width. At the same time, the lower edge of the baffle 4 is specially designed to lightly contact or slightly exceed the surface of the conveyor belt 21 with a small gap. This design can effectively guide the material, preventing it from slipping from the side or getting stuck in the gap, and can also minimize the frictional resistance and wear between the baffle 4 and the conveyor belt 21, ensuring smooth and long-lasting conveying. Furthermore, the horizontal frictional contact between the base plate 2 and the conveyor belt 21 further prevents material jamming.

[0029] like Figures 4-8 As shown, the punching process for automotive sheet metal parts inevitably generates a large amount of metal dust and fine debris. If these contaminants are not removed in time, they will not only pollute the working environment and endanger the health of operators, but may also fall onto conveyor belt 21 or subsequent sheet metal parts, affecting product quality or even scratching the surface of the workpiece. Therefore, this system integrates a synchronous dust removal device.

[0030] The core of this dust removal device is a negative pressure dust collection system, whose dust collection inlet is cleverly located in the area of ​​the base plate 2 directly below the stamping die 14. Multiple second dust collection holes 25 are regularly spaced on the upper surface of the base plate 2 in this area. The diameter and distribution density of these holes ensure effective coverage of the main areas where sheet metal parts fall and dust scatters. All these second dust collection holes 25 are connected to a sealed dust collection chamber 24 pre-machined inside the base plate 2. First dust collection holes 211 are formed on the surface of the conveyor belt 21. The dust collection chamber 24 is a flat, smooth-walled cavity structure; its volume and shape design facilitate the convergence and guidance of airflow, reducing flow resistance.

[0031] A circular air vent 241 is provided on the front of the suction chamber 24, serving as the outlet connecting the suction chamber 24 to the outside. A centrifugal impeller 242, capable of high-speed free rotation, is mounted at the air vent 241 via a bearing. The impeller 242 consists of multiple arc-shaped blades, made of a lightweight yet high-strength material. One end of the impeller 242's shaft extends to the outside of the base plate 2, and a second sprocket 243 is fixedly mounted on this shaft end.

[0032] To achieve linkage between the dust removal device and the conveying system, the output shaft of motor 3 is reused as a drive source. In addition to directly driving the second roller shaft 22, a first sprocket 31 with a larger diameter is fixedly mounted on the output shaft of motor 3. Then, a ring chain 32 connects the first sprocket 31 to the second sprocket 243 on the impeller 242 shaft, forming a chain drive pair. Typically, the diameter of the first sprocket 31 is significantly larger than that of the second sprocket 243, creating a speed-increasing transmission ratio. When motor 3 drives the conveyor belt 21, the first sprocket 31 rotates accordingly, driving the second sprocket 243 to rotate at a higher speed via the chain 32, thereby driving the impeller 242 to rotate at high speed.

[0033] When the impeller 242 rotates at high speed, its blades do work on the air, continuously expelling air from the suction chamber 24 through the air vent 241, thus creating a stable negative pressure zone inside the suction chamber 24, i.e., a region below atmospheric pressure. Since the suction chamber 24 is connected to the space above the conveyor belt 21 via the second suction hole 25, this negative pressure effect extends upwards through the second suction hole 25. Dust and debris falling from the stamping die 14 fall onto the conveyor belt 21 under gravity. Upon approaching the second suction hole 25, they are captured by the upward suction force and drawn into the suction chamber 24 along with the airflow. After the dust-laden airflow gathers inside the suction chamber 24, it is ultimately forcibly discharged from the air vent 241 by the impeller 242. To collect this discharged dust and prevent secondary pollution, a dust bag made of non-woven fabric or filter cotton can be conveniently fitted onto the external port of the air vent 241. This dust bag can filter out the vast majority of dust, while clean air is discharged through the bag wall. This design allows the entire dust removal process to be driven by the same motor of the conveying system, requiring no additional energy, achieving the dual goals of energy saving and environmental protection, while maintaining the simplicity of the system.

[0034] like Figure 4 and Figure 9 As shown, after punching and dust removal, the sheet metal parts may become contaminated due to stacking or surface residue during the conveyor belt 21 process. To further improve the output quality and create favorable conditions for subsequent visual inspection, automatic sorting, or packaging processes, this system adds a material handling and secondary cleaning device at the end of the conveying path.

[0035] The device is located on the outer surface of the support 11 near the discharge port. Here, two opposing and parallel L-shaped or triangular mounting brackets 112 are fixedly installed by welding or bolting. The tops of these two brackets 112 jointly support a freely rotatable first roller 5 via bearing seats. The first roller 5 is horizontally mounted, its axis parallel to the second roller 22, and directly above the bearing surface of the conveyor belt 21. The height of the first roller 5 from the upper surface of the conveyor belt 21 is slightly greater than the maximum nominal thickness of a single sheet metal part, but less than the thickness of two stacked sheet metal parts. This height setting ensures that single-sheet sheet metal parts are not obstructed, while stacked sheet metal parts are subject to mechanical interference from above.

[0036] Multiple sets of flexible roller brushes 51 are evenly and alternately distributed along the axial and circumferential directions on the entire cylindrical outer circumferential surface of the first roller shaft 5. The bristles of these roller brushes 51 can be made of materials with certain hardness, elasticity, and wear resistance, such as nylon, polypropylene, or animal bristles. The length, density, and arrangement of the bristles can be selected and adjusted according to the material and cleanliness requirements. To enable the first roller shaft 5 to operate automatically and synchronize its movement with the entire system, a third sprocket 52 is fixedly installed on its shaft end facing the motor 3. This third sprocket 52 is connected to the first sprocket 31 on the motor output shaft via the same chain 32 that drives the impeller 242. That is, the chain 32 sequentially passes around the first sprocket 31, the second sprocket 243, and the third sprocket 52, forming a composite chain drive system. The transmission ratio is designed so that the first roller shaft 5 obtains a suitable rotational speed, which is usually matched with or slightly faster than the linear speed of the conveyor belt 21.

[0037] When motor 3 starts, it drives conveyor belt 21 to transport materials, and simultaneously drives first roller shaft 5 to rotate via chain 32. As first roller shaft 5 rotates, the dense roller brushes 51 on its outer circumference also rotate at high speed. When conveyor belt 21 carrying sheet metal parts passes under first roller shaft 5, the tips of the rotating roller brushes 51 gently but continuously sweep across the upper surface and edges of the sheet metal parts. This process produces several beneficial effects: First, for sheet metal parts that are stacked together due to electrostatic adsorption or slight interlocking, the lateral pushing action of the rotating brushes can effectively separate them, keeping the materials flat and arranged in a single layer on the conveyor belt, greatly facilitating accurate identification and positioning by the subsequent automated vision inspection system. Second, the brushing action of roller brushes 51 can remove trace amounts of oil, dust, or finer metal shavings that may still adhere to the surface of the sheet metal parts during punching and conveying, achieving secondary cleaning of the materials and improving the final appearance quality of the product.

[0038] The working principle of a punching and layout system for automotive sheet metal parts: The automotive sheet metal parts to be processed are accurately positioned and placed on the stamping die 14. A hydraulic press 12, fixed to the top of the bracket 11, is activated under the command of the control system. Its piston rod drives the punching part 13 downwards in a high-speed, precise punching motion. The punching part 13 fits tightly with the lower die, i.e., the stamping die 14, punching holes of predetermined shape and size into the sheet metal parts. After punching is completed, the hydraulic press 12 drives the punching part 13 to return quickly, and the processed sheet metal parts fall naturally under gravity to enter the next stage.

[0039] Material conveying and guiding then commences. Sheet metal parts fall directly onto the bearing surface of the conveyor belt 21 located directly below the stamping die 14. Almost simultaneously, the motor 3, fixed to one side of the base plate 2, continues to operate, its output torque being directly transmitted to the second roller shaft 22, which serves as the drive roller, via a coupling. This drives the annular conveyor belt 21, fitted onto the second roller shafts 22 at both ends, to circulate at a uniform speed. The sheet metal parts falling onto it thus gain the power to move outwards from the system. To ensure that sheet metal parts of different widths can be smoothly conveyed along a predetermined path without deviation, the system is equipped with an adjustable-width guide channel. This channel consists of two baffles 4 parallel to the conveying direction. The operator can adjust the distance between the two baffles 4 by rotating the bidirectional threaded rod 43: the rotational motion of the threaded rod 43 is converted into the opposing linear motion of the baffles 4 through the limiting tubes 42 that engage with its two ends in opposite directions. The limiting tubes 42 then slide within the second limiting hole 26 on the base plate 2 to achieve precise guidance. After adjustment, the lower edge of the baffle 4 is close to the surface of the conveyor belt 21, effectively restraining the lateral movement of the material and preventing jamming.

[0040] Simultaneously with the conveying process, the dust handling function is activated. Metal dust and debris generated during punching fall along with the sheet metal parts. Motor 3 drives a negative pressure dust collection mechanism. The first sprocket 31 mounted on the output shaft of motor 3 transmits power to two driven components via chain 32. One branch drives the impeller 242, installed at the air vent 241 of the suction chamber 24, to rotate at high speed. The rapid rotation of the impeller 242 continuously draws air out of the suction chamber 24, creating a stable negative pressure within the chamber. The suction chamber 24 is connected to the space above through multiple second suction holes 25 located directly below the stamping area on the upper surface of the base plate 2. The suction force generated by the negative pressure draws the falling dust into the suction chamber 24 through the second suction holes 25. Subsequently, the dust-laden air is blown out by the impeller 242 and enters the dustproof bag fitted outside the air vent 241, where the dust is filtered and retained, achieving immediate dust removal in the working area.

[0041] When the sheet metal parts are conveyed to the vicinity of the discharge end, the material sorting and final cleaning process begins. Another branch of the chain drive 32 rotates the first roller shaft 5 mounted on the fixed frame 112. This first roller shaft 5 spans above the conveyor belt 21, and the densely packed flexible roller brushes 51 mounted on its surface rotate at high speed. The installation height of the first roller shaft 5 is precisely calculated so that its bristles can just contact the upper surface of the passing sheet metal parts. The rotating roller brushes 51 perform two main functions: firstly, physical agitation and combing. For sheet metal parts that are accidentally stacked together, the bristles can effectively separate them and smooth out warped parts, ensuring that the material is output in a flat, single-layer state, greatly facilitating subsequent automatic visual inspection or robotic gripping. Secondly, secondary surface cleaning. The bristles can remove trace amounts of oil, dust, and small debris that may have remained in the previous processes, further improving the product's appearance quality and cleanliness.

[0042] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A punching and layout system for automotive sheet metal parts, characterized in that: The device includes a stamping die (14) and a conveyor belt (21) arranged opposite to the stamping die (14) for unloading. The conveyor belt (21) is fitted on the outer circumferential surface of the base plate (2), and first limiting holes (23) are respectively opened on both sides of the outer surface of the base plate (2). At the same time, a limiting post (41) capable of telescopic displacement is provided inside the first limiting hole (23). One end of the limiting post (41) extends above the conveyor belt (21), and a baffle (4) is provided on the surface of the conveyor belt (21). The surface of the baffle (4) is fixedly connected to the end of the limiting post (41).

2. The automotive sheet metal punching and layout system according to claim 1, characterized in that: The base plate (2) is provided with second limiting holes (26) on both sides of its outer surface. The second limiting holes (26) are spaced apart from the first limiting holes (23) and are set horizontally. A limiting tube (42) extends from the outer surface of the baffle (4) into the second limiting hole (26).

3. The automotive sheet metal punching and layout system according to claim 2, characterized in that: One end of the limiting tube (42) has an opening, and the inner ring wall of the opening has an internal thread. The baffle (4) above the conveyor belt (21) is arranged in two opposite directions, and a threaded rod (43) is threadedly connected inside the opening of the two limiting tubes (42).

4. The automotive sheet metal punching and layout system according to claim 3, characterized in that: A second dust suction hole (25) is provided on the upper surface of the bottom plate (2) below the stamping die (14) perpendicular to it. The second dust suction hole (25) communicates with the dust suction chamber (24) inside the bottom plate (2). A first dust suction hole (211) is provided on the surface of the conveyor belt (21).

5. The automotive sheet metal punching and layout system according to claim 4, characterized in that: The front of the base plate (2) is also provided with a vent (241), which is connected to the interior of the dust collection chamber (24). At the same time, a rotating impeller (242) is movably arranged at the opening of the vent (241), and a second sprocket (243) is fixed at the shaft of the impeller (242). At the same time, a first sprocket (31) is fixed on the output shaft of the motor (3).

6. The automotive sheet metal punching and layout system according to claim 5, characterized in that: A chain (32) is fitted between the first sprocket (31) and the second sprocket (243), and the diameter of the first sprocket (31) is larger than that of the second sprocket (243).

7. The automotive sheet metal punching and layout system according to claim 6, characterized in that: The stamping die (14) is fixed with brackets (11) on both sides. Two opposing fixed frames (112) are fixed on one side of the surface of the bracket (11), and a first roller shaft (5) that can rotate is provided between the two opposing fixed frames (112). At the same time, the first roller shaft (5) is located above the conveyor belt (21).

8. The automotive sheet metal punching and layout system according to claim 7, characterized in that: The outer circumferential surface of the first roller (5) is also uniformly distributed with roller brushes (51), and the height of the first roller (5) from the conveyor belt (21) is such that individual materials can pass through. A third sprocket (52) is fixed at the end of the first roller (5) near the first sprocket (31).

9. The automotive sheet metal punching and layout system according to claim 8, characterized in that: The punching part (13) is disposed opposite to the punching die (14), and a hydraulic press (12) is disposed opposite to the punching part (13).

10. The automotive sheet metal punching and layout system according to claim 9, characterized in that: The hydraulic press (12) is fixed to the top of the bracket (11), wherein the punch (13) and the stamping die (14) are placed inside the bracket (11), and a base (1) is fixed to the bottom of the bracket (11).

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