Anti-skid automobile door sill stamping die

Abstract

The utility model discloses a kind of automobile door threshold stamping die of anti-lateral shift, belong to stamping die technical field, including bottom plate, lower die fixed on bottom plate, support column installed on bottom plate and the stamping mechanism of being arranged at the top end of support column, stamping mechanism includes hydraulic cylinder two, upper die, crossbeam, integrated board, sliding column and connecting plate, sliding column is slidably fitted in the limiting hole of crossbeam, drive upper die movement, the die also includes hydraulic cylinder one, guide rod, guide pillar, fixed column and clamping plate, hydraulic cylinder one and fixed column are all fixed on support column, guide rod is slidably arranged in the guide hole of guide pillar.The utility model is precisely slidably fitted by sliding column and limiting hole, the stability of upper die movement is improved, the precision of guiding is improved, simultaneously, active locking force can be applied to die in stamping instant, effectively resist lateral impact, eliminate die lateral shift, guarantee the stamping precision of automobile door threshold.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to an anti-lateral displacement automobile door sill stamping die. Background Technology

[0002] The door sill is a key component of the car body structure. The forming precision of the door sill is crucial to the overall assembly quality and safety of the vehicle. Stamping is the main method for mass production of door sills. The stamping die applies enormous pressure to the metal sheet through the closure of the upper and lower dies to form the shape.

[0003] During the stamping process, especially for parts with narrow shapes and complex cross-sections such as car door sills, the material flow and deformation are extremely uneven. This uneven force will inevitably generate a strong lateral force at the moment the mold closes.

[0004] Existing stamping dies mostly rely on the cooperation of guide pillars and guide sleeves for vertical guidance. When subjected to huge lateral impact forces, the guide clearance of this guiding mechanism will result in insufficient ability to suppress lateral displacement, causing die offset. The lateral offset of the die directly leads to the misalignment of the stamping clearance, resulting in dimensional deviations, surface scratches or local wrinkles in the finished car door sills, which seriously reduces the product qualification rate. At the same time, die offset will also accelerate the abnormal wear of the guide components and affect the service life of the die.

[0005] Therefore, this utility model proposes an anti-lateral displacement automobile door sill stamping die to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems in the existing anti-lateral displacement automotive door sill stamping dies, such as unstable upper die guidance during the stamping process and lateral displacement of the die under force, which affects stamping accuracy, this utility model aims to provide an anti-lateral displacement automotive door sill stamping die with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a car door sill stamping die for preventing lateral displacement, including: a base plate, a lower die fixed on the base plate, a support column installed on the base plate, and a stamping mechanism set at the top of the support column. The stamping mechanism includes a hydraulic cylinder and an upper die.

[0008] The stamping mechanism also includes a crossbeam, a fixed frame, an integrated plate, a sliding column, and a connecting plate;

[0009] The mold also includes a hydraulic cylinder, a guide rod, a guide column, a fixing column, and a clamping plate.

[0010] The fixed frame is fixed on the crossbeam for installing the second hydraulic cylinder. The integrated plate connects the second hydraulic cylinder and the sliding column. The sliding column is fixedly connected to the connecting plate. The connecting plate is fixedly connected to the upper mold. The crossbeam has a limiting hole for the sliding column to slide.

[0011] Furthermore, both the hydraulic cylinder and the fixed column are fixed on the support column. The guide rod is connected to the output end of the hydraulic cylinder. The guide column has a guide hole for the guide rod to slide. The fixed column has a limit groove to cooperate with the movement of the guide column. The guide column is fixedly connected to the clamping plate.

[0012] Preferably, the upper end of the integrated plate is fixedly connected to a hydraulic cylinder, and the lower end of the integrated plate is connected to a sliding column.

[0013] Preferably, the support column is located on the base plate, and the crossbeam is supported at the top of the support column.

[0014] Preferably, the guide rod is slidably inserted into the guide hole.

[0015] Preferably, the guide post is slidably fitted into the limiting groove of the fixed post.

[0016] Preferably, the guide post is fixedly connected to the clamping plate, and the clamping plate is located on the side of the upper mold and the lower mold.

[0017] Preferably, the card plates are symmetrically arranged on both sides of the lower mold.

[0018] Preferably, the crossbeam has multiple limiting holes, and the stamping mechanism includes multiple sliding columns, which slide in a one-to-one correspondence with the limiting holes.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model, by setting a crossbeam, an integrated plate, a connecting plate, and a sliding column, with the sliding column slidingly engaged in the limiting hole opened in the crossbeam, jointly drives the upper mold to move up and down, solves the problem in the prior art that the upper mold is prone to shaking or deflection during the pressing process due to the unstable guide structure, resulting in inaccurate positioning, improves the stability of the upper mold movement, ensures accurate positioning before stamping, and improves the guiding accuracy.

[0021] 2. This utility model, by adding a hydraulic cylinder, guide rod, guide post, guide hole, fixed post, limiting groove, and clamping plate, utilizes the sliding of the guide rod and guide hole and the cooperation of the guide post and limiting groove to convert the movement of the hydraulic cylinder into the opposing clamping movement of the clamping plate. This solves the problem in the prior art where the stamping die shifts laterally due to lateral force when the upper and lower dies are subjected to combined force, affecting the accuracy of the stamped product. It applies an active locking force to the die at the moment of stamping, effectively resisting lateral impact, preventing die lateral displacement, and ensuring the stamping accuracy of the car door sill. Attached Figure Description

[0022] Figure 1 This is a front perspective view of a car door sill stamping die for preventing lateral displacement, as proposed in this utility model.

[0023] Figure 2This is a partial structural diagram of the crossbeam of an anti-lateral displacement automobile door sill stamping die proposed in this utility model;

[0024] Figure 3 This is a partial structural exploded view of the guide hole of an anti-lateral displacement automobile door sill stamping die proposed in this utility model;

[0025] Figure 4 This is a partial structural diagram of the fixing frame of an anti-lateral displacement automobile door sill stamping die proposed in this utility model.

[0026] Legend:

[0027] 1. Base plate; 2. Stamping mechanism; 201. Crossbeam; 202. Limiting hole; 203. Sliding column; 204. Connecting plate; 205. Upper mold; 206. Integrated plate; 207. Fixing frame; 208. Hydraulic cylinder two; 3. Support column; 4. Lower mold; 5. Hydraulic cylinder one; 6. Guide rod; 7. Guide column; 8. Guide hole; 9. Fixing column; 10. Limiting groove; 11. Clamping plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Example:

[0030] Please refer to Figures 1 to 4 This utility model provides a car door sill stamping die for preventing lateral displacement, including a base plate 1, a lower die 4 fixed on the base plate 1, a support column 3 vertically installed on the base plate 1, a stamping mechanism 2 set at the top of the support column 3, the top of the support column 3 supporting a crossbeam 201, a hydraulic cylinder 5 fixed on the support column 3, the stamping mechanism 2 including a crossbeam 201, a fixing frame 207, a hydraulic cylinder 208, an integrated plate 206, a sliding column 203, a connecting plate 204 and an upper die 205, the fixing frame 207 fixed on the crossbeam 201, the hydraulic cylinder 208 installed on the fixing frame 207, the upper end of the integrated plate 206 fixedly connected to the hydraulic cylinder 208, the lower end of the integrated plate 206 connected to the sliding column 203, the sliding column 203 fixedly connected to the connecting plate 204, the connecting plate 204 fixedly connected to the upper die 205, the crossbeam 201 has multiple limiting holes 202, and the sliding column 203 slides in a one-to-one correspondence with the limiting holes 202.

[0031] The anti-lateral displacement automotive door sill stamping die also includes a guide rod 6, a guide post 7, a guide hole 8, a fixed post 9, a limiting groove 10, and a clamping plate 11. The fixed post 9 is fixed on the support post 3. The guide rod 6 is connected to the output end of the hydraulic cylinder 5. The guide post 7 has a guide hole 8, and the guide rod 6 can slide through the guide hole 8. The fixed post 9 has a limiting groove 10, and the guide post 7 can slide in the limiting groove 10 of the fixed post 9. The guide post 7 is fixedly connected to the clamping plate 11. The clamping plate 11 is located on the side of the upper die 205 and the lower die 4, and the clamping plate 11 is symmetrically arranged on both sides of the lower die 4.

[0032] Please refer to Figure 1 , Figure 2 and Figure 4 A horizontal beam 201 is horizontally mounted on the top of the support column 3. The beam 201 is used to install the fixing frame 207 and to create limiting holes 202. The fixing frame 207 is firmly fixed to the top surface of the beam 201. A second hydraulic cylinder 208 is vertically mounted on the fixing frame 207, with its output end facing downwards. The second hydraulic cylinder 208 provides vertical downward pressing power to the entire stamping mechanism 2. The upper end of the integrated plate 206 is fixedly connected to the output end of the second hydraulic cylinder 208, and the lower end of the integrated plate 206 is fixedly connected to the tops of multiple sliding columns 203. The integrated plate 206 is used to synchronously connect the second hydraulic cylinder 208 and the multiple sliding columns 203. Multiple limiting holes 202 are correspondingly opened on the beam 201, and multiple sliding columns 203 pass through the beam 201. The outer wall of the sliding column 203 and the inner wall of the limiting hole 202 form a precise sliding fit. The connecting plate 204 is fixedly connected to the lower end of the multiple sliding columns 203. The upper mold 205 is firmly fixed to the bottom surface of the connecting plate 204, which can provide a stable guide for the vertical up and down reciprocating movement of the upper mold 205, ensuring that the upper mold 205 resists general lateral force during the pressing process. The upper mold 205 moves up and down under the drive of the connecting plate 204, and cooperates with the lower mold 4 fixed on the base plate 1 to complete the stamping process.

[0033] As a preferred embodiment, please refer to Figure 1 The support column 3 is vertically fixed to the upper surface of the base plate 1, and the crossbeam 201 is horizontally erected and supported at the top of the support column 3. The support column 3 provides a stable support height for the crossbeam 201. As a preferred embodiment, please refer to... Figure 4 To ensure the synchronization of power transmission, the upper end of the integrated plate 206 is fixedly connected to the output end of the second hydraulic cylinder 208, and the lower end of the integrated plate 206 is fixedly connected to the top end of the sliding column 203. The integrated plate 206 ensures that the output force of the second hydraulic cylinder 208 is evenly transmitted to multiple sliding columns 203.

[0034] As a preferred embodiment, please refer to Figure 2In order to greatly improve the stability of the upper mold 205 pressing down, multiple limiting holes 202 are provided on the crossbeam 201. The stamping mechanism 2 includes multiple sliding pillars 203. The multiple sliding pillars 203 are arranged one-to-one with the multiple limiting holes 202, and the outer cylindrical surface of the sliding pillar 203 forms a precise sliding fit with the inner wall of the limiting hole 202, which effectively suppresses the shaking of the upper mold 205 when subjected to force.

[0035] As a preferred embodiment, please refer to Figure 3 In order to achieve motion conversion, a guide hole 8 is provided on the guide post 7, and the guide rod 6 can be slidably inserted and accommodated in the through hole of the guide hole 8. The guide rod 6 slides along its own axis in the guide hole 8.

[0036] As a preferred embodiment, please refer to Figure 3 A limiting groove 10 is provided on the fixed column 9. A specific part of the guide column 7 is fitted into the limiting groove 10. The guide column 7 is slidably fitted in the limiting groove 10 of the fixed column 9. The groove wall of the limiting groove 10 provides guidance and limitation for the horizontal movement of the guide column 7.

[0037] In a preferred embodiment, the guide post 7 is rigidly fixedly connected to the clamping plate 11, which is located on the side of the mating area of ​​the upper mold 205 and the lower mold 4, with the clamping surface of the clamping plate 11 facing the mold.

[0038] As a preferred embodiment, please refer to Figure 1 The clamping plates 11 are symmetrically arranged on both sides of the lower mold 4. The corresponding guide pillars 7, guide rods 6, hydraulic cylinders 5, fixed pillars 9 and limiting grooves 10 are also symmetrically arranged. The clamping plates 11 on both sides move synchronously towards each other or synchronously away from each other under the drive of the guide pillars 7.

[0039] Working principle:

[0040] When a stamping action is required, the second hydraulic cylinder 208, which is mounted on the fixed frame 207, is activated. The output end of the second hydraulic cylinder 208 drives the integrated plate 206 to move vertically downward. The integrated plate 206 is fixedly connected to the top of the sliding column 203 at its lower end, which drives multiple sliding columns 203 to move downward synchronously. The outer wall of the sliding column 203 is precisely slidably fitted in the inner wall of multiple limiting holes 202 in the crossbeam 201. The multi-point guide structure of the sliding column 203 provides stable guidance for the movement of the upper mold 205. The lower ends of the multiple sliding columns 203 are fixedly connected to the connecting plate 204, which drives the upper mold 205, which is fixedly connected to the bottom surface of the connecting plate 204, to move vertically downward. The upper mold 205 finally cooperates with the lower mold 4 fixed on the base plate 1 to complete the stamping process.

[0041] As the upper die 205 of the stamping mechanism 2 presses down and is about to merge with the lower die 4, the hydraulic cylinder 5 fixed on the support column 3 is activated. The output end of the hydraulic cylinder 5 drives the guide rod 6 to move vertically. The guide rod 6 slides along its own axis in the guide hole 8 of the guide column 7. Since a specific part of the guide column 7 is simultaneously slidably fitted in the limiting groove 10 of the fixed column 9, the vertical sliding of the guide rod 6 is converted into the horizontal movement of the guide column 7 through the combined guiding effect of the guide hole 8 and the guide column 7 and the limiting groove 10. The guide column 7 is rigidly fixed with the clamping plate 11. The fixed connection drives the clamping plates 11 symmetrically arranged on both sides of the lower mold 4 to move synchronously towards each other. The clamping surfaces of the clamping plates 11 clamp the mating area of ​​the upper mold 205 and the lower mold 4 from the side, thereby actively applying a locking force. This effectively prevents the upper mold 205 and the lower mold 4 from shifting laterally under huge stamping pressure, ensuring stamping accuracy. After stamping is completed, the second hydraulic cylinder 208 drives the upper mold 205 to reset in the reverse direction. At the same time, the first hydraulic cylinder 5 drives the guide post 7 in the reverse direction, causing the clamping plates 11 to move synchronously away from each other. The mold opens, ready for the next stamping cycle.

Claims

1. A side-slip prevention automobile door sill stamping die, comprising: The base plate (1) and the stamping mechanism (2) are provided. A lower mold (4) is fixedly connected to the base plate (1). A support column (3) is installed on the base plate (1). The stamping mechanism (2) includes a hydraulic cylinder (208) for providing power and an upper mold (205) driven by the hydraulic cylinder (208). Its features are, The stamping mechanism (2) also includes a crossbeam (201), a fixed frame (207), an integrated plate (206), a sliding column (203), and a connecting plate (204). The fixing frame (207) is fixed on the crossbeam (201) for mounting the hydraulic cylinder (208); The automobile door sill stamping die also includes a hydraulic cylinder (5), a guide rod (6), a guide post (7), a guide hole (8), a fixing post (9), a limiting groove (10), and a clamping plate (11). The hydraulic cylinder (5) and the fixed column (9) are both fixed on the support column (3). The guide rod (6) is connected to the output end of the hydraulic cylinder (5). The guide column (7) has the guide hole (8) for the guide rod (6) to slide. The fixed column (9) has the limiting groove (10) to cooperate with the movement of the guide column (7). The guide column (7) is fixedly connected to the clamping plate (11).

2. The anti-lateral displacement automobile door sill stamping die according to claim 1, characterized in that, The upper end of the integrated plate (206) is fixedly connected to the hydraulic cylinder (208), and the lower end of the integrated plate (206) is connected to the sliding column (203).

3. The anti-lateral displacement automobile door sill stamping die according to claim 1, characterized in that, The support column (3) is located on the base plate (1), and the crossbeam (201) is supported on the top of the support column (3).

4. The anti-lateral displacement automobile door sill stamping die according to claim 1, characterized in that, The guide rod (6) is slidably inserted into the guide hole (8).

5. The anti-lateral displacement automobile door sill stamping die according to claim 1, characterized in that, The guide post (7) is slidably fitted into the limiting groove (10) of the fixed post (9).

6. The anti-lateral displacement automobile door sill stamping die according to claim 1, characterized in that, The guide post (7) is fixedly connected to the clamping plate (11), which is located on the side of the upper mold (205) and the lower mold (4).

7. The anti-lateral displacement automobile door sill stamping die according to claim 6, characterized in that, The card plate (11) is symmetrically arranged on both sides of the lower mold (4).

8. The anti-lateral displacement automobile door sill stamping die according to claim 1, characterized in that, The crossbeam (201) has multiple limiting holes (202), and the stamping mechanism (2) includes multiple sliding columns (203), with each sliding column (203) corresponding to and slidingly engaging with the limiting holes (202).

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