Automobile covering part stamping tool
By designing a stamping fixture for automotive body panels with slider and flange block components, and combining vertical and horizontal stamping, the problem of dimensional deviations caused by vertical edge springback was solved, achieving high-precision vertical edge forming and reducing mold costs and debugging difficulty.
Patent Information
- Application Number
- CN202423224391.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The vertical edges of existing automotive body panels are prone to springback after vertical stamping, leading to dimensional deviations, affecting welding accuracy, and increasing mold processes and costs.
Design a stamping fixture for automotive body panels. By sliding a slider and a flange block assembly within the upper die holder, combining vertical and horizontal stamping, and utilizing a curved transition pressure surface design and guide groove structure, along with a return nitrogen spring and anti-deformation components, ensures precise forming of the vertical edge during the stamping process.
It effectively solved the problem of edge springback, improved the precision of parts, reduced the difficulty of adjusting product dimensional accuracy, and avoided changes in mold processes and increased costs.
Smart Images
Figure CN223557120U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the automobile manufacturing technical field especially relates to a kind of automobile covering piece stamping tool. BACKGROUND
[0002] Automobile covering piece is very complex in shape to meet the needs of strength, function, modeling and so on. With the rapid development of automobile industry, the speed of new vehicle model updating is faster and faster, and the application of stamping die in vehicle development is more and more important. The floor parts in vehicle stamping parts are generally perpendicular to the stamping direction, and the vertical edge is easy to rebound after vertical flanging, as shown in Figure 1 The existing stamping tool is used for vertical stamping of automobile covering piece, and the vertical edge is in the first vertical edge state after vertical stamping, and the vertical edge rebounds to the second vertical edge state after processing, so that the size is out of tolerance, which affects the vehicle body welding and cannot guarantee the welding precision. In order to make the size of the workpiece qualified, the processing shape of the vertical edge can be adjusted to the third vertical edge state by increasing the side die, but this method needs to change the die process and increase the die cost.
[0003] Therefore, it is urgent to design a kind of automobile covering piece stamping tool to solve the problem of vertical stamping forming vertical edge size out of tolerance mentioned above. CONTENT OF THE UTILITY MODEL
[0004] In order to solve the technical problem of vertical stamping forming vertical edge size out of tolerance mentioned in the background, a kind of automobile covering piece stamping tool is provided to solve the above problems.
[0005] In order to achieve the above purpose, the specific technical scheme of the automobile covering piece stamping tool of the utility model is as follows:
[0006] A kind of automobile covering piece stamping tool, including upper die seat and lower die seat, the upper die seat top is fixedly connected with machine tool, the upper die seat is slidably connected with sliding block in, the sliding block is installed with flanging block assembly, the flanging block assembly is provided with stamping groove, the lower die seat is provided with driving seat, the machine tool drives the vertical movement of upper die seat to make stamping groove vertical stamping to automobile covering piece, in the process of vertical stamping, driving seat is in contact with sliding block, driving seat drives sliding block to move horizontally relative to upper die seat to make stamping groove horizontal stamping to automobile covering piece simultaneously.
[0007] Further, the stamping groove includes first pressure surface and second pressure surface, the first pressure surface and the second pressure surface are transitioned through arc surface, and the included angle between the first pressure surface and the second pressure surface is less than 90 degrees.
[0008] Further, the sliding block is provided with guide plate, the lower die seat is provided with guide groove, and the guide plate is slidably connected with the guide groove, so that the sliding block slides relative to the upper die seat.
[0009] Further, the guide plate comprises a first guide plate and a second guide plate, and the guide groove comprises a first guide groove and a second guide groove,
[0010] The first guide plate is located on the top surface of the sliding block and is in sliding connection with the first guide groove located on the bottom surface of the upper die seat.
[0011] The second guide plate is located on the side surface of the sliding block and is in sliding connection with the second guide groove located on the side surface of the upper die seat.
[0012] Further, a return nitrogen gas spring is arranged between the upper die seat and the sliding block, one end of the return nitrogen gas spring is fixedly connected with the upper die seat, and the other end of the return nitrogen gas spring away from the upper die seat is fixedly connected with the sliding block.
[0013] Further, the sliding block is fixedly connected with an anti-blocking deformation component, and one end of the anti-blocking deformation component away from the sliding block is connected with the upper die seat.
[0014] Further, a first long through hole is arranged on the upper die seat, the anti-blocking deformation component comprises a connecting rod and a clamping block, the connecting rod and the clamping block are fixedly connected, the cross-sectional area of the clamping block is greater than the hole area of the first long through hole, the cross-sectional area of the connecting rod is less than the hole area of the first long through hole, and after the connecting rod passes through the first long through hole and is connected with the sliding block, the clamping block is attached to the upper die seat, so that the sliding block is connected with the upper die seat.
[0015] Further, a second long through hole is arranged on the upper die seat, a safety bolt is arranged in the second long through hole, the cross-sectional area of the head of the safety bolt is greater than the hole area of the second long through hole, the cross-sectional area of the screw rod of the safety bolt is less than the hole area of the second long through hole, and after the screw rod of the safety bolt passes through the second long through hole and is connected with the sliding block, the head of the safety bolt and the upper die seat form an anti-falling gap.
[0016] Further, a rigid limiting block is arranged on the sliding block, and the mounting leg of the flanging block component abuts against the rigid limiting block through the sliding block.
[0017] Further, the driving seat and the sliding block are in contact through a guide inclined plate.
[0018] The automobile covering part stamping tool has the following advantages: the automobile covering part stamping tool solves the problems of conventional vertical flanging, adjustment of post-site springback and size tolerance of the workpiece, effectively improves the workpiece precision and reduces the debugging difficulty of the product size precision. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a structure schematic diagram of the automobile covering part standing edge state of the utility model.
[0020] Figure 2 It is a structure schematic diagram of the automobile covering part stamping tool of the utility model.
[0021] Figure 3Schematic diagram of vertical stamping of the present utility model.
[0022] Figure 4 Schematic diagram of horizontal stamping of the present utility model.
[0023] Figure 5 Schematic diagram of the top structure of the upper die base of the present utility model.
[0024] Figure 6 Schematic diagram of the bottom structure of the upper die base of the present utility model.
[0025] Figure 7 Schematic diagram of the slider structure of the present utility model.
[0026] Explanation of marks in the figure: 100, the state of the first vertical edge; 200, the state of the second vertical edge; 300, the state of the third vertical edge; 1, upper die base; 101, guide groove; 1011, the first guide groove; 1012, the second guide groove; 102, the first long through hole; 103, the second long through hole; 104, the accommodating groove for the limiting block; 105, the receiving plate; 2, lower die base; 201, driving seat; 3, slider; 301, guide plate; 3011, the first guide plate; 3012, the second guide plate; 4, flanging block assembly; 401, stamping groove; 4011, the first pressing surface; 4012, the second pressing surface; 5, return nitrogen spring; 6, anti-interference deformation assembly; 601, connecting rod; 602, clamping block; 7, safety bolt; 8, rigid limiting block; 9, guiding inclined plate; 10, automotive panel. <s Detailed implementation manners
[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present utility model.
[0028] Those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments means being within the scope of the present utility model and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.
[0029] Next, refer to the attached Figure 1 to the attached Figure 7 Describe the automotive panel stamping tooling of the present utility model.
[0030] Among the stamping parts of the whole vehicle, floor parts generally have vertical edges parallel to the stamping direction for welding and assembling with other parts. After the vertical edges are vertically flanged, springback is likely to occur. As Figure 1 shown, after the existing stamping tooling performs a separate vertical stamping on the automotive panel 10, the vertical edge is in the first vertical edge state 100. After processing, the vertical edge rebounds to the second vertical edge state 200, resulting in dimensional tolerance exceeding, which further affects the body welding and cannot guarantee the welding accuracy. To make the part size qualified, it is possible to choose to add a side trimming die to adjust the processing shape of the vertical edge to the third vertical edge state 300. However, this method requires changing the die process and will also increase the die cost.
[0031] Therefore, the present utility model provides a stamping tooling for automotive panels, as Figures 1-7 shown, which includes an upper die base 1 and a lower die base 2. The top of the upper die base 1 is fixedly connected to the machine tool. A slider 3 is slidably connected inside the upper die base 1. A flanging block assembly 4 is installed on the slider 3. A stamping groove 401 is formed on the flanging block assembly. A driving seat 201 is provided on the lower die base 2. The machine tool drives the upper die base 1 to move vertically so that the stamping groove 401 performs vertical stamping on the automotive panel 10. During the vertical stamping process, the driving seat 201 contacts the slider 3, and the driving seat 201 drives the slider 3 to move horizontally relative to the upper die base 1 so that the stamping groove 401 simultaneously performs horizontal stamping on the automotive panel 10. Specifically, the top of the lower die base 2 is fixedly connected to the machine tool. The machine tool drives the upper die base 1 to move downward, as Figure 3 shown, so that the stamping groove 401 performs vertical stamping on the automotive panel 10. When the upper die base 1 moves downward to a certain position, at this time, the driving seat 201 on the lower die base 2 contacts the slider 3, and the driving seat 201 causes the slider 3 to move horizontally. That is, at this time, the slider 3 simultaneously moves vertically and horizontally until the stamping is in place, as Figure 4 shown. At this time, the automotive panel 10 is flanged and side trimmed, ensuring the dimensional accuracy after the vertical edge rebounds.
[0032] Preferably, as Figure 3 shown, the stamping groove 401 includes a first pressing surface 4011 and a second pressing surface 4012. The first pressing surface 4011 and the second pressing surface 4012 are transitioned by an arc surface. The included angle between the first pressing surface 4011 and the second pressing surface 4012 is less than 90 degrees, so that the vertical edge of the automotive panel 10 rebounds after stamping, showing the first vertical edge state 100 as Figure 1 shown.
[0033] Preferably, as Figures 5-7 shown, a guide plate 301 is provided on the slider 3, and a guide groove 101 is provided on the lower die base 2. The guide plate 301 and the guide groove 101 match each other, and the guide plate 301 is slidably connected to the guide groove 101 to enable the slider 3 to slide relative to the upper die base 1.
[0034] As preferred, the guide plate 301 comprises a first guide plate 3011 and a second guide plate 3012, the guide slot 101 comprises a first guide slot 1011 and a second guide slot 1012, the first guide plate 3011 is located on the top surface of the slider 3, and the first guide plate 3011 is in sliding connection with the first guide slot 1011 located on the bottom surface of the upper die seat 1; the second guide plate 3012 is located on the side surface of the slider 3, and the second guide plate 3012 is in sliding connection with the second guide slot 1012 located on the side surface of the upper die seat 1, and the second guide slot 1012 is provided with a receiving plate 105 in sliding connection with the second guide plate 3012, so that the upper die seat 1 can stably support the slider 3.
[0035] As preferred, as shown in Figure 7 , the return nitrogen gas spring 5 is provided between the upper die seat 1 and the slider 3, one end of the return nitrogen gas spring 5 is fixedly connected with the upper die seat 1, and the other end of the return nitrogen gas spring 5 away from the upper die seat 1 is fixedly connected with the slider 3, specifically, after stamping is completed, the slider 3 in the upper die seat 1 returns to the initial position through the return nitrogen gas spring 5, so as to realize batch stamping of automobile cover parts 10 of the same specification.
[0036] As preferred, as shown in Figure 7 , the anti-blocking deformation assembly 6 is fixedly connected on the slider 3, and the other end of the anti-blocking deformation assembly 6 away from the slider 3 is connected with the upper die seat 1, specifically, the anti-blocking deformation assembly 6 avoids the bending deformation of the large-span slider 3 caused by gravity, thereby ensuring the precision of stamping.
[0037] As preferred, as shown in Figures 5-7 , the first long through hole 102 is formed on the upper die seat 1, the anti-blocking deformation assembly 6 comprises a connecting rod 601 and a clamping block 602, the connecting rod 601 and the clamping block 602 are fixedly connected, the cross-sectional area of the clamping block 602 is greater than the hole area of the first long through hole 102, the cross-sectional area of the connecting rod 601 is less than the hole area of the first long through hole 102, after the connecting rod 601 passes through the first long through hole 102 and is connected with the slider 3, the clamping block 602 is attached to the upper die seat 1, so as to connect the slider 3 and the upper die seat 1, wherein the connecting rod 601 cooperates with the first long through hole 102 to leave a displacement space for the relative movement between the slider 3 and the upper die seat 1.
[0038] As preferred, as shown in Figures 5-7As shown in the drawings, the second long through hole 103 is arranged on the upper die seat 1, the safety bolt 7 is arranged in the second long through hole 103, the cross-sectional area of the head of the safety bolt 7 is greater than the hole area of the second long through hole 103, the cross-sectional area of the screw rod of the safety bolt 7 is smaller than the hole area of the second long through hole 103, after the screw rod of the safety bolt 7 is connected with the sliding block 3 through the second long through hole 103, the gap for preventing falling is formed between the head of the safety bolt 7 and the upper die seat 1, so that the accidental separation of the part is prevented, wherein the screw rod of the safety bolt 7 cooperates with the second long through hole 103, and the displacement space is left for the relative movement between the sliding block 3 and the upper die seat 1.
[0039] As preferred, as shown in the drawings, Figure 6 and 7 As shown in the drawings, the rigid limiting block 8 is arranged on the sliding block 3, the mounting leg of the flanging block assembly 4 abuts against the rigid limiting block 8 through the sliding block 3, so that the flanging block assembly 4 is prevented from being displaced by the reaction force of the automobile cover 10 during horizontal stamping, and preferably, the limiting block accommodating groove 104 is arranged on the upper die seat 1 and is matched with the shape of the rigid limiting block 8.
[0040] As preferred, as shown in the drawings, Figure 7 The driving seat 201 is in contact with the sliding block 3 through the guide inclined plate 9, and the driving seat 201 drives the sliding block 3 to horizontally displace through the guide inclined plate 9.
[0041] In an embodiment, the upper die seat 1 moves downward along the stamping direction, the flanging block assembly 4 is preliminarily vertically flanged in the state of abutting contact with the rigid limiting block 8, the upper die seat 1 continues to move downward after the preliminary vertical flanging is completed, the sliding block 3 contacts the driving seat 201 before the die reaches the bottom, and the driving seat 201 drives the sliding block 3 to complete side shaping along the horizontal direction by 2mm while stamping downward.
[0042] The utility model solves the problems of conventional vertical flanging, adjustment of rebound at later stage and out-of-tolerance of part size, effectively improves the part precision and reduces the debugging difficulty of product size precision.
[0043] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or changes can be made on the basis of the above description. Here, all the embodiments are not enumerated. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. An automotive panel stamping tool characterized by, The application relates to a stamping device for automobile coverings, which comprises an upper die holder and a lower die holder, the top of the upper die holder is fixedly connected with a machine tool, a sliding block is slidably connected in the upper die holder, a flange block assembly is installed on the sliding block, a stamping groove is formed in the flange block assembly, a driving seat is arranged on the lower die holder, the upper die holder is driven to vertically move by the machine tool, and the stamping groove vertically stamps the automobile covering; during the vertical stamping process, the driving seat is in contact with the sliding block, the driving seat drives the sliding block to horizontally move relative to the upper die holder, and the stamping groove simultaneously horizontally stamps the automobile covering.
2. The automotive panel stamping tooling of claim 1, wherein, The stamping groove comprises a first pressing surface and a second pressing surface, the first pressing surface and the second pressing surface are connected through an arc surface, and the included angle between the first pressing surface and the second pressing surface is less than 90 degrees.
3. The automotive panel stamping tooling of claim 1, wherein, A guide plate is arranged on the sliding block, a guide groove is arranged on the lower die holder, and the guide plate is slidably connected with the guide groove so as to slide the sliding block relative to the upper die holder.
4. The automotive panel stamping tooling of claim 3, wherein, The guide plate comprises a first guide plate and a second guide plate, the guide groove comprises a first guide groove and a second guide groove, The first guide plate is arranged on the top surface of the sliding block and is slidably connected with the first guide groove arranged on the bottom surface of the upper die holder; The second guide plate is arranged on the side surface of the sliding block and is slidably connected with the second guide groove arranged on the side surface of the upper die holder.
5. The automotive panel stamping tooling of claim 1, wherein, A return nitrogen gas spring is arranged between the upper die holder and the sliding block, one end of the return nitrogen gas spring is fixedly connected with the upper die holder, and the other end of the return nitrogen gas spring is fixedly connected with the sliding block.
6. The automotive panel stamping tooling of claim 1, wherein, A resistance interference deformation prevention assembly is fixedly connected with the sliding block, and the other end of the resistance interference deformation prevention assembly is connected with the upper die holder.
7. The automotive panel stamping tool of claim 6, wherein, A first long through hole is formed in the upper die holder, the resistance interference deformation prevention assembly comprises a connecting rod and a clamping block, the connecting rod and the clamping block are fixedly connected, the sectional area of the clamping block is larger than the hole area of the first long through hole, the sectional area of the connecting rod is smaller than the hole area of the first long through hole, the connecting rod passes through the first long through hole and is connected with the sliding block, and the clamping block is attached to the upper die holder so as to connect the sliding block with the upper die holder.
8. The automotive panel stamping tooling of claim 1, wherein, A second long through hole is formed in the upper die holder, a safety bolt is arranged in the second long through hole, the sectional area of the head of the safety bolt is larger than the hole area of the second long through hole, the sectional area of the screw rod of the safety bolt is smaller than the hole area of the second long through hole, the screw rod of the safety bolt passes through the second long through hole and is connected with the sliding block, and a falling prevention gap is formed between the head of the safety bolt and the upper die holder.
9. The automotive panel stamping tooling of claim 1, wherein, A rigid limiting block is installed on the sliding block, and the mounting leg of the flange block assembly abuts against the rigid limiting block through the sliding block.
10. The automotive panel stamping tooling of claim 1, wherein, The driving seat is in contact with the sliding block through a guide inclined plate.