Metal raw material shearing device
By designing lifting and centering adjustment components, the problems of insufficient clamping force and guidance in the shearing process of high-strength metal sheets are solved, achieving stable clamping and automatic centering of the sheets, improving shearing accuracy and equipment lifespan, and making it suitable for flexible production in automobile manufacturing.
Patent Information
- Application Number
- CN202511606406.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-05
- Publication Date
- 2026-02-27
AI Technical Summary
Existing shearing equipment suffers from insufficient clamping force when shearing high-strength metal sheets, causing the sheet to move or vibrate during the shearing process. This results in increased burrs on the cut surface, accelerated tool wear, and a lack of an effective sheet guiding and centering control system. Consequently, the sheet is prone to deviation when fed into the shearing area, especially when shearing narrow strips or thin sheets at high speed.
The pressure plate driven by the lifting component stably presses the metal sheet. Combined with the centering adjustment component and the U-shaped plate structure that cooperates with the dovetail groove and dovetail block, the sheet is kept in a fixed position during the shearing process. Automatic feeding and centering positioning are achieved by the conveyor belt. The guide structure of the second cutter is stably guided by the meshing transmission of the support gear and rack.
It effectively prevents the sheet metal from slipping or vibrating during the shearing process, improves the dimensional consistency of the cut and the assembly accuracy, reduces tool wear, enhances the adaptability of the production line, and improves production efficiency and equipment lifespan.
Smart Images
Figure CN121571697A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of raw material shearing technology in automobile manufacturing, specifically a metal raw material shearing device. Background Technology
[0002] In the current automotive manufacturing industry, sheet metal is the main raw material for the body, chassis and various structural components. Its processing precision and efficiency directly affect the assembly quality and production efficiency of the whole vehicle. Before entering processes such as welding and stamping, sheet metal often needs to be cut according to design requirements to obtain blanks of specific sizes and shapes. As one of the key links in sheet metal processing, the performance of the equipment used for cutting has an important impact on subsequent processes.
[0003] With the continuous advancement of automotive lightweighting and the application of high-strength steel plates, the increase in plate thickness and strength has placed higher demands on shearing equipment. When shearing high-strength metal plates, existing shearing equipment often suffers from insufficient clamping force, causing the plate to move or vibrate during the shearing process. This results in increased burrs on the cut surface, accelerated tool wear, and even cut deformation, affecting part quality and mold life. On the other hand, existing shearing equipment often lacks an effective plate guiding and centering control system during continuous operation, causing the plate to easily deviate when fed into the shearing area, which is especially noticeable when shearing narrow strips or thin plates at high speed. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a metal raw material shearing device. This device solves the problem that existing shearing equipment often suffers from insufficient clamping force when shearing high-strength metal sheets, leading to sheet movement or vibration during the shearing process. This results in increased burrs on the cut surface, accelerated tool wear, and even cut deformation, affecting part quality and mold life. Furthermore, existing shearing equipment often lacks an effective sheet material guiding and centering control system during continuous operation, causing the sheet material to easily deviate when fed into the shearing area, a problem that is particularly pronounced when shearing narrow strips or thin plates at high speeds.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a metal raw material shearing device, comprising a worktable, a gantry frame fixedly installed between the two side walls of the worktable, a lifting assembly provided inside the gantry frame, a pressure plate fixedly installed on the lifting assembly, the pressure plate being located above the worktable, a first cutter fixedly installed on the side wall of the worktable, an extension plate fixedly installed on the upper outer wall of the gantry frame, a hydraulic cylinder fixedly installed on the extension plate, the telescopic end of the hydraulic cylinder penetrating through the extension plate and fixedly installed with a second cutter, a U-shaped frame fixedly installed on the other side wall of the worktable, a conveyor belt installed inside the U-shaped frame, a bearing frame fixedly installed inside the U-shaped frame and located between the conveyor belt and the worktable, and a centering adjustment assembly provided inside the bearing frame.
[0006] Preferably, the lifting assembly includes a first motor, an inner cavity is formed on the transverse end of the gantry frame, a shaft is rotatably mounted between the two sides of the inner cavity, a first driven gear is fixedly mounted at the center of the shaft, and second driving gears are fixedly mounted on the shaft on both sides of the first driven gear, the first motor is fixedly mounted on the upper wall of the transverse end of the gantry frame, the drive end of the first motor passes through the upper wall of the inner cavity and is fixedly mounted on the first driving gear, the first driving gear meshes with the first driven gear, guide grooves are formed on the two inner walls of the gantry frame, a lead screw is rotatably mounted between the upper and lower walls of the guide groove, the upper end of the lead screw is located in the inner cavity and is fixedly mounted on the second driven gear, the second driven gear meshes with the second driving gear, a moving block is slidably mounted in the guide groove, a first threaded hole is formed on the moving block, the moving block meshes with the lead screw through the first threaded hole, and a pressure plate is fixedly mounted between the moving blocks.
[0007] Preferably, the first driving gear, the second driving gear, the first driven gear, and the second driven gear are all bevel gear structures.
[0008] Preferably, the centering adjustment component includes a pair of housings, which are fixedly installed on the upper and lower walls of the support frame. The support frame has openings on its upper and lower sides, which pass through the housings. A bidirectional lead screw is rotatably installed between the two inner walls of the housings. A pair of I-shaped blocks are slidably installed in the openings. The I-shaped blocks have second threaded holes and are engaged with the bidirectional lead screws through the second threaded holes. A rotating roller is rotatably installed between the I-shaped blocks on the upper and lower sides of the support frame.
[0009] Preferably, one end of the bidirectional lead screw passes through the housing, a second motor is fixedly installed on the side wall of the U-shaped frame, a first sprocket is fixedly installed on the second motor, a second sprocket is fixedly installed on the through end of the bidirectional lead screw, and a chain connects the first sprocket and the second sprocket.
[0010] Preferably, the front and rear walls of the gantry frame are respectively provided with dovetail grooves, dovetail blocks are slidably installed in the dovetail grooves, U-shaped plates are fixedly installed between the dovetail blocks, the second cutter is fixedly installed on the U-shaped plate, a support gear is rotatably installed between the second cutter and the U-shaped plate, and a rack is fixedly installed on the front wall of the gantry frame, with the gear meshing with the rack.
[0011] Beneficial effects This invention provides a metal raw material shearing device, which solves the problems of existing shearing equipment when shearing high-strength metal sheets. Insufficient clamping force often causes the sheet to move or vibrate during shearing, resulting in increased burrs on the cut surface, accelerated tool wear, and even cut deformation, affecting part quality and mold life. Furthermore, existing shearing equipment often lacks an effective sheet guiding and centering control system during continuous operation, causing the sheet to easily deviate when fed into the shearing area, especially when shearing narrow strips or thin plates at high speed. This invention has the following advantages: This invention utilizes a pressure plate driven by a lifting assembly to stably clamp the metal sheet before shearing, effectively preventing slippage or vibration during the shearing process. Specifically, the lifting assembly employs a first motor driving a bevel gear set, which drives the lead screws on both sides to rotate synchronously, causing the moving block to descend smoothly along the guide groove. Finally, the pressure plate applies uniform and sufficient clamping force to the sheet. This structure ensures that the sheet maintains a fixed posture throughout the shearing process, avoiding problems such as skewing of the cut, increased burrs on the cut surface, or cross-sectional deformation caused by insufficient clamping force. It is particularly suitable for the precision shearing of high-strength, high-hardness metal sheets, significantly improving the dimensional consistency and assembly accuracy of automotive structural components.
[0012] Addressing the characteristics of multi-variety, small-batch production in automobile manufacturing, this invention incorporates an automatically adjustable centering adjustment component along the feeding path. This component, driven by a second motor, activates a sprocket and chain mechanism, causing a bidirectional lead screw to rotate synchronously. This allows the upper and lower sets of I-beam blocks to move in opposite directions along the opening, thereby adjusting the spacing between the rotating rollers. This design enables rapid and precise centering and positioning of metal sheets of varying widths, achieving automatic correction and centering of the sheets during transport without manual intervention. This significantly reduces equipment changeover and adjustment time, enhances the production line's adaptability to diverse sheet specifications, and meets the flexible production needs of the automotive manufacturing industry.
[0013] This invention features an innovative design for the drive and guide structure of the second cutter. By setting a U-shaped plate structure with a dovetail groove and a dovetail block, combined with the meshing transmission of the support gear and rack, a two-way constraint and stable guide are provided for the up-and-down movement of the second cutter. This structure effectively suppresses the lateral swaying or twisting of the cutter during the shearing process, ensuring that the shearing gap between the second cutter and the first cutter remains constant. This not only improves the smoothness and reliability of the shearing action and reduces abnormal wear or chipping of the cutter caused by cutter wobble, but also reduces the impact load on power components such as hydraulic cylinders, thereby extending the overall service life of the shearing device and reducing equipment maintenance costs.
[0014] This invention highly integrates functional modules such as feeding, centering, pressing, and shearing into one unit. It achieves automatic feeding of sheet metal through a conveyor belt, automatic centering during the feeding process through a centering adjustment component, automatic pressing at the shearing station through a lifting component and a pressure plate, and finally, the second cutter driven by a hydraulic cylinder completes the shearing. The entire process is closely connected and highly automated, which greatly reduces manual operation and labor intensity, while improving production cycle and overall operation efficiency. It is very suitable for integration into modern automated production lines for automotive parts. Attached Figure Description
[0015] Figure 1 This is a schematic front view of the metal raw material shearing device according to the present invention.
[0016] Figure 2 This is a schematic diagram of the lifting assembly structure of a metal raw material shearing device according to the present invention.
[0017] Figure 3 This is a schematic diagram of the centering adjustment component of a metal raw material shearing device according to the present invention.
[0018] Figure 4 This is a top view schematic diagram of the U-shaped plate structure of the metal raw material shearing device of the present invention.
[0019] In the diagram: 1. Workbench; 2. Gantry frame; 3. Pressure plate; 4. First cutter; 5. Extension plate; 6. Hydraulic cylinder; 7. Second cutter; 8. U-shaped frame; 9. Conveyor belt; 10. Bearing frame; 11. First motor; 12. Shaft; 13. First driven gear; 14. Second driving gear; 15. First driving gear; 16. Guide groove; 17. Lead screw; 18. Second driven gear; 19. Moving block; 20. Housing; 21. Opening; 22. Double-acting lead screw; 23. I-shaped block; 24. Rotating roller; 25. Second motor; 26. First sprocket; 27. Second sprocket; 28. Chain; 29. Dovetail groove; 30. Dovetail block; 31. U-shaped plate; 32. Support gear; 33. Rack. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] Please see Figure 1-4This invention provides a technical solution: a metal raw material shearing device, including a workbench 1, a gantry frame 2 fixedly installed between the two side walls of the workbench 1, a lifting assembly inside the gantry frame 2, a pressure plate 3 fixedly installed on the lifting assembly, the pressure plate 3 being located above the workbench 1, a first cutter 4 fixedly installed on the side wall of the workbench 1, an extension plate 5 fixedly installed on the upper outer wall of the gantry frame 2, a hydraulic cylinder 6 fixedly installed on the extension plate 5, the telescopic end of the hydraulic cylinder 6 passing through the extension plate 5 and fixedly installed with a second cutter 7, a U-shaped frame 8 fixedly installed on the other side wall of the workbench 1, a conveyor belt 9 installed inside the U-shaped frame 8, a bearing frame 10 fixedly installed inside the U-shaped frame and located between the conveyor belt 9 and the workbench 1, and a centering adjustment assembly inside the bearing frame 10.
[0022] In this embodiment, the lifting assembly includes a first motor 11. An inner cavity is formed on the transverse end of the gantry frame 2. A shaft 12 is rotatably mounted between the two sides of the inner cavity. A first driven gear 13 is fixedly mounted at the center of the shaft 12. Second driving gears 14 are fixedly mounted on the shaft 12 on both sides of the first driven gear 13. The first motor 11 is fixedly mounted on the upper wall of the transverse end of the gantry frame 2. The driving end of the first motor 11 penetrates the upper wall of the inner cavity and is fixedly mounted with a first driving gear 15. Wheel 15 is meshed with the first driven gear 13. Guide grooves 16 are respectively opened on the inner two side walls of the gantry frame 2. A lead screw 17 is rotatably installed between the upper and lower walls of the guide groove 16. The upper end of the lead screw 17 is located in the inner cavity and a second driven gear 18 is fixedly installed. The second driven gear 18 is meshed with the second driving gear 14. A moving block 19 is slidably installed in the guide groove 16. A first threaded hole is opened on the moving block 19. The moving block 19 is meshed with the lead screw 17 through the first threaded hole. The pressure plate 3 is fixedly installed between the moving blocks 19.
[0023] In this embodiment, the first driving gear 15, the second driving gear 14, the first driven gear 13, and the second driven gear 18 are all bevel gear structures.
[0024] In this embodiment, the centering adjustment component includes a pair of housings 20, which are fixedly installed on the upper and lower walls of the support frame 10. The support frame 10 has openings 21 on its upper and lower sides, which penetrate the housings 20. A bidirectional lead screw 22 is rotatably installed between the two inner walls of the housings 20. A pair of I-shaped blocks 23 are slidably installed in the openings 21. The I-shaped blocks 23 have second threaded holes and are engaged with the bidirectional lead screw 22 through the second threaded holes. A rotating roller 24 is rotatably installed between the I-shaped blocks 23 on the upper and lower sides of the support frame 10.
[0025] In this embodiment, one end of the bidirectional lead screw 22 passes through the housing 20, a second motor 25 is fixedly installed on the side wall of the U-shaped frame 8, a first sprocket 26 is fixedly installed on the second motor 25, a second sprocket 27 is fixedly installed on the through end of the bidirectional lead screw 22, and a chain 28 connects the first sprocket 26 and the second sprocket 27.
[0026] In this embodiment, the front and rear walls of the gantry frame 2 are respectively provided with dovetail grooves 29, dovetail blocks 30 are slidably installed in the dovetail grooves 29, and U-shaped plates 31 are fixedly installed between the dovetail blocks 30. The second cutter 7 is fixedly installed on the U-shaped plate 31, and a support gear 32 is rotatably installed between the second cutter 7 and the U-shaped plate 31. A rack 33 is fixedly installed on the front wall of the gantry frame 2, and the gear and the rack 33 are meshed and connected.
[0027] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.
[0028] Example: As shown in the accompanying drawings, during use, the automotive metal sheet is placed on the conveyor belt 9, which moves the sheet towards the first cutter 4. When the sheet passes between a pair of rotating rollers 24, the second motor 25 is activated. The second motor 25 drives the first sprocket 26 to rotate. Since the first sprocket 26 and the second sprocket 27 are connected by a chain 28, the second sprocket 27 drives the bidirectional lead screw 22 to rotate. The bidirectional lead screw 22 is engaged with the I-shaped block 23 through a second threaded hole. When the bidirectional lead screw 22 rotates, it drives the I-shaped block 23. At this time, the I-shaped block 23 moves towards each other along the path of the opening 21, which in turn causes the rotating rollers 24 to move towards each other. The rotating rollers 24 center the automotive metal sheet, and their rotation ensures smooth movement of the automotive metal sheet. When the length of the automotive metal sheet to be cut moves off the worktable 1, the conveyor belt 9 stops moving, and the first motor 11 is started. The drive end of the first motor 11 drives the first driving gear 15 to rotate, which in turn drives the first driven gear 13 to rotate. Driven gear 13 drives shaft 12 to rotate, shaft 12 drives second drive gear 14 to rotate, second drive gear 14 drives second driven gear 18 to rotate, and second driven gear 18 drives lead screw 17 to rotate. Since moving block 19 is engaged with lead screw 17 through the first threaded hole, the rotation of lead screw drives moving block 19. Moving block 19 moves downward along the path of guide groove 16, causing pressure plate 3 to move downward, thus pressing and fixing the automotive metal sheet. At this point, the engine starts... Hydraulic cylinder 6 pushes the second cutter 7 downward. Under the action of support gear 32, the second cutter 7 moves along the gear path. Under the action of U-shaped plate 31, the second cutter 7 moves downward along the path of dovetail groove 29, so that the second cutter 7 moves downward stably. The height of U-shaped plate 31 is less than the height of the second cutter 7, so that when the second cutter 7 moves downward to cut the plate, U-shaped plate 31 will not block the material. That is, when the plate is cut, U-shaped plate 31 will not contact the plate. At this time, the second cutter 7 and the first cutter 4 cut the automotive metal plate.
[0029] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
Claims
1. A metal raw material shearing device, comprising a worktable (1), characterized in that, A gantry frame (2) is fixedly installed between the two side walls of the workbench (1). A lifting assembly is provided inside the gantry frame (2). A pressure plate (3) is fixedly installed on the lifting assembly. The pressure plate (3) is located above the workbench (1). A first cutter (4) is fixedly installed on the side wall of the workbench (1). An extension plate (5) is fixedly installed on the upper outer wall of the gantry frame (2). A hydraulic cylinder (6) is fixedly installed on the extension plate (5). The telescopic end of the hydraulic cylinder (6) passes through the extension plate (5) and a second cutter (7) is fixedly installed. A U-shaped frame (8) is fixedly installed on the other side wall of the workbench (1). A conveyor belt (9) is installed inside the U-shaped frame (8). A bearing frame (10) is fixedly installed inside the U-shaped frame and between the conveyor belt (9) and the workbench (1). A centering adjustment assembly is provided inside the bearing frame (10).
2. The metal raw material shearing device according to claim 1, characterized in that... The lifting assembly includes a first motor (11). An inner cavity is formed on the transverse end of the gantry (2). A shaft (12) is rotatably mounted between the two sides of the inner cavity. A first driven gear (13) is fixedly mounted at the center of the shaft (12). Second driving gears (14) are fixedly mounted on the shaft (12) on both sides of the first driven gear (13). The first motor (11) is fixedly mounted on the upper wall of the transverse end of the gantry (2). The driving end of the first motor (11) penetrates the upper wall of the inner cavity and is fixedly mounted with a first driving gear (15). The first driving gear (15) and the first driven gear... The gears (13) are meshed and connected. The inner side walls of the gantry frame (2) are respectively provided with guide grooves (16). A lead screw (17) is rotatably installed between the upper and lower walls of the guide groove (16). The upper end of the lead screw (17) is located in the inner cavity and a second driven gear (18) is fixedly installed. The second driven gear (18) is meshed and connected with the second driving gear (14). A moving block (19) is slidably installed in the guide groove (16). A first threaded hole is provided on the moving block (19). The moving block (19) is meshed and connected with the lead screw (17) through the first threaded hole. The pressure plate (3) is fixedly installed between the moving blocks (19).
3. The metal raw material shearing device according to claim 1, characterized in that... The first driving gear (15), the second driving gear (14), the first driven gear (13) and the second driven gear (18) are all bevel gear structures.
4. A metal raw material shearing device according to claim 1, characterized in that... The centering adjustment component includes a pair of housings (20), which are fixedly installed on the upper and lower walls of the support frame (10). The support frame (10) has openings (21) on its upper and lower sides, which pass through the housings (20). A bidirectional lead screw (22) is rotatably installed between the two inner walls of the housing (20). A pair of I-shaped blocks (23) are slidably installed in the openings (21). A second threaded hole is provided on the I-shaped block (23). The I-shaped block (23) is engaged with the bidirectional lead screw (22) through the second threaded hole. A rotating roller (24) is rotatably installed between the I-shaped blocks (23) on the upper and lower sides of the support frame (10).
5. A metal raw material shearing device according to claim 4, characterized in that... One end of the bidirectional lead screw (22) passes through the housing (20). A second motor (25) is fixedly installed on the side wall of the U-shaped frame (8). A first sprocket (26) is fixedly installed on the second motor (25). A second sprocket (27) is fixedly installed on the end of the bidirectional lead screw (22). A chain (28) connects the first sprocket (26) and the second sprocket (27).
6. A metal raw material shearing device according to claim 1, characterized in that... The gantry frame (2) has dovetail grooves (29) on its front and rear outer walls respectively. Dovetail blocks (30) are slidably installed in the dovetail grooves (29). U-shaped plates (31) are fixedly installed between the dovetail blocks (30). The second cutter (7) is fixedly installed on the U-shaped plate (31). A support gear (32) is rotatably installed between the second cutter (7) and the U-shaped plate (31). A rack (33) is fixedly installed on the front wall of the gantry frame (2). The gear and the rack (33) are meshed and connected.