Stamping and edge cutting equipment for cold-rolled aluminum plate
By introducing a limiting plate and aluminum plate guide structure into the cold-rolled aluminum plate stamping equipment, the dynamic offset and deformation problems of aluminum plates during high-speed stamping are solved, achieving precise edge trimming and high yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional cold-rolled aluminum sheet stamping equipment suffers from insufficient lateral force resistance in the guiding mechanism during high-speed stamping, leading to dynamic offset and elastic deformation of the aluminum sheet, which affects the edge cutting accuracy and the yield of subsequent processes.
The structure employs a limiting plate and an aluminum plate guide. The limiting plate precisely controls the movement trajectory of the aluminum plate, while the elastic guide plate and elastic components buffer and fix the aluminum plate to prevent deformation and ensure the stability of the aluminum plate during the punching process.
It improves the accuracy of aluminum plate edge cutting, reduces the scrap rate, and increases the yield of subsequent processes.
Smart Images
Figure CN223981043U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping equipment technology, and in particular to a cold-rolled aluminum sheet stamping and trimming equipment. Background Technology
[0002] Cold-rolled aluminum sheets are widely used in automotive manufacturing, electronics, aerospace, and other fields due to their excellent surface quality, dimensional accuracy, and good formability. As a core representative of lightweight materials, the precision and yield of its trimming process directly affect the assembly efficiency and structural reliability of downstream products.
[0003] Traditional stamping equipment often employs single-column or double-column guide structures, whose rigid design struggles to meet the dynamic load requirements of high-speed stamping. During the stamping of cold-rolled aluminum sheets, the thin aluminum material (typically 0.2-3.0 mm) and low yield strength (80-150 MPa) are prone to elastic deformation under high-speed impact loads. When the punch's downward speed exceeds 80 strokes per minute, the guide mechanism's insufficient resistance to lateral forces causes dynamic shifts in the gap between the punch and the lower die, resulting in fluctuations in the trimming dimensions. Experimental data shows that the trimming dimension deviation of traditional equipment can reach over ±0.5 mm, exceeding precision assembly requirements (typically controlled within ±0.2 mm), directly leading to an increase in the defect rate in subsequent welding and bending processes.
[0004] Traditional hydraulic drive systems achieve cutting through a rigid fit between the punch and the lower die. Statistics show that the scrap rate of aluminum sheets produced by traditional equipment is about 2%, of which 80% is due to insufficient edge strength caused by crack propagation. Such defects are further amplified in subsequent stamping or surface treatment processes, leading to an increase in overall costs. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, this utility model provides a cold-rolled aluminum sheet stamping and trimming equipment. This design effectively solves the problem that in conventional cold-rolled aluminum sheet stamping and trimming equipment, the aluminum sheet will dynamically shift and elastically deform during the stamping process, which leads to an increase in the defect rate in subsequent welding and bending processes.
[0006] To achieve the above objectives, the present invention provides the following technical solution: The present invention includes a stamping bracket, a blanking assembly slidably connected to the stamping bracket, a bearing plate fitted under the blanking assembly, the bearing plate being fixedly connected to the stamping bracket, a material conveying plate provided in front of the bearing plate, a material conveying frame fixedly connected below the material conveying plate, a first limiting plate provided on one side of the material conveying plate, a second limiting plate provided on the other side of the material conveying plate, the first limiting plate and the second limiting plate being placed parallel to each other, forming an adjustable material guiding channel between the first limiting plate and the second limiting plate, and an aluminum plate guide provided in front of the second limiting plate;
[0007] The aluminum plate guide includes an elastic guide plate, with a first push rod and a second push rod hinged to the outer side of the elastic guide plate. Both the first push rod and the second push rod are slidably connected to the bearing plate. Both the first push rod and the second push rod are connected to a linear guide block on their outer sides, and the two linear guide blocks have different moving lengths.
[0008] Preferably, the material conveying rack is fixedly connected to a first bracket and a second bracket, and both the first bracket and the second bracket are provided with an adjusting rod, which is fixedly connected to the first limiting plate or the second limiting plate.
[0009] Preferably, the second bracket is slidably connected to the first slide plate, the first slide plate is provided with a first slide groove, a connecting pin is slidably connected in the first slide groove, the second bracket is provided with a second slide groove for the connecting pin to slide, and the linear guide block is provided with a third slide groove for the connecting pin to slide. The two second slide grooves have different inclination angles.
[0010] Preferably, the blanking assembly includes a lifting platform, a blanking block is fixedly connected below the lifting platform, a material discharge groove that cooperates with the blanking block is provided on the bearing plate, a fixing plate of equal height is provided on the side of the blanking block, and an elastic element is provided between the fixing plate and the lifting platform.
[0011] Preferably, the elastic element includes a guide rod, which is fixedly connected to the fixed plate and slidably connected to the lifting platform. The lifting platform is provided with a through groove, and a spring is sleeved on the guide rod above the fixed plate.
[0012] Preferably, a guide block is fixedly connected to the support plate, the guide block is provided with a slot, a ball is provided above the slot, the ball is rotatably connected to the guide block, and an exhaust groove is provided on the support plate.
[0013] Compared with the prior art, the outstanding advantages of this utility model are:
[0014] In this invention, the movement trajectory of the aluminum plate is limited by the first limiting plate and the second limiting plate to avoid lateral deviation of the aluminum plate, ensure accurate edge trimming of the aluminum plate, and improve the yield of the finished product in subsequent processes.
[0015] In this invention, before the aluminum plate passes the first limiting plate and the second limiting plate, it must pass through the aluminum plate guide for track correction. The elastic guide block in the aluminum plate guide smoothly corrects the trajectory of the aluminum plate, avoiding excessive bending of the aluminum plate's movement trajectory and preventing deformation of the aluminum plate. In addition, the elastic element in the stamping assembly buffers and fixes the fixing plate, preventing deformation of the aluminum plate due to excessive stamping force. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall first axial side structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the overall second axial side structure of this utility model.
[0018] Figure 3 This is a schematic diagram of the right side structure of the stamping bracket of this utility model.
[0019] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle.
[0020] Figure 5 This is a schematic diagram of the material conveying plate connection structure of this utility model.
[0021] Figure 6 This is a schematic diagram of the connection structure of the second limiting plate of this utility model.
[0022] Figure 7 This is an exploded view of the elastic guide plate of this utility model.
[0023] The following are the labeling elements in the diagram: 1. Stamping bracket; 2. Blanking assembly; 201. Lifting platform; 202. Blanking block; 203. Fixing plate; 204. Guide rod; 205. Spring; 206. Through slot; 3. Bearing plate; 4. Material conveying plate; 5. First limiting plate; 6. Second limiting plate; 7. Elastic guide plate; 8. First push rod; 9. Second push rod; 10. Linear guide block; 11. First bracket; 12. Second bracket; 13. Adjusting rod; 14. First sliding plate; 15. First slide groove; 16. Connecting pin; 17. Second slide groove; 18. Third slide groove; 19. Drop chute; 20. Guide block; 21. Slot; 22. Ball bearing; 23. Vent groove. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see the appendix Figure 1-7This embodiment discloses a cold-rolled aluminum sheet stamping and trimming device: a stamping support 1, a cutting assembly 2 slidably connected to the stamping support 1, a bearing plate 3 fitted under the cutting assembly 2, the bearing plate 3 being fixedly connected to the stamping support 1, a conveying plate 4 in front of the bearing plate 3, a conveying rack fixedly connected below the conveying plate 4, a first limiting plate 5 on one side of the conveying plate 4, and a second limiting plate 6 on the other side of the conveying plate 4, the first limiting plate 5 and the second limiting plate 6 being placed parallel to each other, forming an adjustable material guiding channel between the first limiting plate 5 and the second limiting plate 6, an aluminum sheet guide on the front side of the second limiting plate 6; the aluminum sheet guide includes an elastic guide plate 7, a first push rod 8 and a second push rod 9 hinged to the outer side of the elastic guide plate 7, both the first push rod 8 and the second push rod 9 being slidably connected to the bearing plate 3, and both the first push rod 8 and the second push rod 9 being connected to the outer side of a linear guide block 10, the two linear guide blocks 10 having different moving lengths.
[0026] The stamping support 1 is a frame welded from H-beams. Inside the stamping support 1 are a drive assembly and a vertical slide rail. The blanking assembly 2 moves longitudinally back and forth under the action of the drive assembly and the vertical slide rail. The bearing plate 3 is located below the blanking assembly 2. The bearing plate 3 is a horizontal plate, flush with the top surface of the conveyor plate 4. The conveyor plate 4 horizontally transports the cold-rolled aluminum sheet towards the bearing plate 3. After passing the bearing plate 3, the blanking assembly 2 blanks the sides of the cold-rolled aluminum sheet. The conveyor plate 4 has adjustable first limiting plates 5 and second limiting plates 6 on both sides. The bottom surfaces of the first limiting plates 5 and second limiting plates 6 are in close contact with the top surface of the conveyor plate 4. The first limiting plates 5 and second limiting plates 6 limit the left and right sides of the cold-rolled aluminum sheet on the conveyor plate 4, ensuring that the cold-rolled aluminum sheet... The aluminum plate enters the blanking section at a specific position. An aluminum plate guide is installed on the front side of the second limiting plate 6. The aluminum plate guide guides and limits the movement trajectory of the aluminum plate. The aluminum plate guide moves synchronously with the second push rod 9 and the first push rod 8. However, the distance between the linear guide block 10 pushing the two inward is different. The lateral movement length of the second push rod 9 is less than the lateral movement length of the first push rod 8. In this way, the elastic guide plate 7 forms an inclined structure on the conveying plate 4, which can push one side of the cold-rolled aluminum plate to the other side, so that the other side of the cold-rolled aluminum plate is in close contact with the first limiting block. In this way, during the subsequent blanking and pressing, only one side of the cold-rolled aluminum plate needs to be blanked to complete the blanking work of the cold-rolled aluminum plate, ensuring that the width of the aluminum plate is the same after blanking.
[0027] The bottom of the conveying plate 4 is supported by the conveying frame. The rear side of the conveying plate 4 is provided with a first bracket 11, and the front side of the conveying plate 4 is provided with a second bracket 12. The rear first bracket 11 is used to support the first push rod 8 and the adjusting rod 13. The adjusting rod 13 is an adjustable part. The adjusting rod 13 adopts a telescopic structure or a crossbar with locking bolts on the first bracket 11. The adjusting rod 13 can be replaced with a linear motion part. It mainly plays the role of adjusting the position of the first limiting plate 5. The adjusting rod 13 on the front second bracket 12 is connected to the second limiting plate 6.
[0028] The linear guide block 10 moves synchronously through the cooperation of the first slide plate 14 and the second slide plate. The first slide plate 14, located on the second support 12, has the freedom to slide left and right. A telescopic cylinder is installed on the second support 12, which drives the first slide plate 14 to slide left and right. The connecting pin 16 inside the first slide plate 14 can slide back and forth under the action of the first slide groove 15. The second slide groove 17 on the second support 12 is inclined. The limiting plate of the second slide groove 17 moves the connecting pin 16 obliquely. The first slide groove 15 is to counteract the amount of movement of the connecting pin 16 back and forth. The connecting pin 16 is slidably connected to the linear guide block 10 above through the third slide groove 18. The third slide groove 18 is placed perpendicular to the first slide groove 15. The third slide groove 18 is to counteract the displacement of the connecting pin 16 by moving it left and right, so that the connecting pin 16 drives the linear guide block 10 to move back and forth. The forward movement of the linear guide block 10 pushes the first push rod 8 and the second push rod 9 to move the elastic guide plate 7. The two second slide grooves 17 have different inclination angles. When the connecting pin 16 slides horizontally for the same distance, the distance between the two connecting pins 16 moving back and forth is also different. In this way, the elastic guide plate 7 is placed obliquely after being pushed by the first push rod 8 and the second push rod 9. The right opening is larger to facilitate the entry of the aluminum plate, and the left opening is smaller to limit the movement trajectory of the aluminum plate.
[0029] In the blanking assembly 2, both the fixed plate 203 and the blanking block 202 are installed on the lower surface of the lifting platform 201. The lifting platform 201 drives the fixed plate 203 and the blanking block 202 to move vertically. The blanking block 202 and the lower surface of the fixed plate 203 remain flush. When blanking the aluminum plate, the fixed plate 203 presses down on the aluminum plate to maintain its stability. The blanking block 202 blanks the edges of the aluminum plate, and the blanked material enters the blanking trough 19. After blanking, the aluminum plate continues to move to the left. To prevent the fixed plate 203 from indenting the aluminum plate surface, an elastic element is installed between the fixed plate 203 and the lifting platform 201. The elastic element causes the fixed plate 203 to have a longitudinal displacement when subjected to a large force, thus avoiding a large indentation on the aluminum plate surface. The elastic element consists of a spring 205 and a guide rod 204. The guide rod 204 guides the vertical movement of the fixed plate 203, and the spring 205 is sleeved on the guide rod 204, exerting a downward force on the fixed plate 203.
[0030] Furthermore, the bottom of the support plate 3 has an exhaust groove 23, which can prevent air residue from remaining between the aluminum plate and the support plate 3, ensuring that the aluminum plate will not shift when the fixing plate 203 presses it. The guide block 20 on the side of the support plate 3 limits the side of the aluminum plate. When the aluminum plate passes the support plate 3, one side of the aluminum plate is located in the slot 21 of the guide block 20. In this way, the aluminum plate can form a good positioning before the fixing plate 203 presses it. The ball bearing 22 above the slot 21 reduces the friction when the aluminum plate moves, making it easier for the aluminum plate to move left and right.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cold-rolled aluminum sheet blanking and trimming apparatus, characterized by: Including the punch support (1), the punch support (1) is slidably connected with the blanking assembly (2), the blanking assembly (2) is matched with the bearing plate (3), the bearing plate (3) is fixedly connected with the punch support (1), the bearing plate (3) is equipped with the material conveying plate (4) in front, the material conveying plate (4) is fixedly connected with the material conveying frame below, the material conveying plate (4) one side is equipped with the first limiting plate (5), the material conveying plate (4) other side is equipped with the second limiting plate (6), the first limiting plate (5) and the second limiting plate (6) parallel placement, first limiting plate (5) and second limiting plate (6) between the adjustable guide channel is formed, the second limiting plate (6) front side is equipped with the aluminum plate guider; The aluminum plate guider includes an elastic guide plate (7), the outer side of the elastic guide plate (7) is hinged with a first push rod (8) and a second push rod (9), the first push rod (8) and the second push rod (9) are slidably connected with the bearing plate (3), the outer side of the first push rod (8) and the second push rod (9) is connected with a linear guide block (10), the moving length of the two linear guide blocks (10) is different.
2. A cold-rolled aluminum sheet blanking apparatus according to claim 1, characterized in that: The material conveying frame is fixedly connected with a first support (11) and a second support (12), the first support (11) and the second support (12) are both equipped with an adjusting rod (13), the adjusting rod (13) is fixedly connected with the first limiting plate (5) or the second limiting plate (6).
3. A cold-rolled aluminum sheet blanking apparatus according to claim 2, characterized in that: The second support (12) is slidably connected with a first sliding plate (14), the first sliding plate (14) is equipped with a first sliding groove (15), the first sliding groove (15) is slidably connected with a connecting pin (16), the second support (12) is equipped with a second sliding groove (17) for the sliding of the connecting pin (16), the linear guide block (10) is equipped with a third sliding groove (18) for the sliding of the connecting pin (16), the inclination angles of the two second sliding grooves (17) are different.
4. A cold-rolled aluminum sheet blanking apparatus according to claim 1, wherein: The blanking assembly (2) includes a lifting platform (201), the lifting platform (201) is fixedly connected with a blanking block (202) below, the bearing plate (3) is equipped with a blanking groove (19) matched with the blanking block (202), the blanking block (202) is equipped with a fixed plate (203) of equal height on the side, and the fixed plate (203) and the lifting platform (201) are equipped with an elastic member therebetween.
5. A cold-rolled aluminum sheet blanking apparatus according to claim 4, characterized in that: The elastic member includes a guide rod (204), the guide rod (204) is fixedly connected with the fixed plate (203), the guide rod (204) is slidably connected with the lifting platform (201), the lifting platform (201) is equipped with a through groove (206), and the guide rod (204) above the fixed plate (203) is sleeved with a spring (205).
6. A cold-rolled aluminium sheet blanking and trimming press according to claim 4 or 5, characterised in that: The bearing plate (3) is fixedly connected with a material guide block (20), the material guide block (20) is equipped with a clamping groove (21), the clamping groove (21) is equipped with a ball (22) above, the ball (22) is rotatably connected with the material guide block (20), and the bearing plate (3) is equipped with an exhaust groove (23).