High-precision automobile roof cross beam composite stamping die

Abstract

The utility model provides high accuracy car roof cross beam compound stamping die, including upper die plate seat, lower die plate seat, stamping upper die body and stamping lower die body, upper die plate seat is connected with stamping upper die body fixedly, lower die plate seat is connected with stamping lower die body fixedly and stamping lower die body is closed die with stamping upper die body, be provided with stamping station no.

Description

Technical Field

[0001] This utility model belongs to the field of stamping die technology, and relates to a high-precision composite stamping die for automotive roof crossbeams. Background Technology

[0002] During the production of roof crossbeams, they are mostly formed by drawing a single pre-cut sheet metal using a stamping die. Commonly available stamping dies for automotive rear roof crossbeams typically consist of an upper die and a lower die. A hydraulic cylinder lowers the upper die, which then stamps the sheet metal located on the lower die, drawing the sheet metal into shape.

[0003] Existing technology, such as the stamping die for an automotive rear roof crossbeam disclosed in patent publication number CN221133656U, includes an upper die and a lower die. The bottom of the upper die has a pressure strip corresponding to the pressure groove at the top of the lower die. The pressure strip is horizontally fixed to the bottom of the upper die. A back plate is movably mounted on the top of the pressure strip via bolts. A heat insulation plate is located inside the pressure strip, below the back plate. An electric heating plate is also located inside the pressure strip, below the heat insulation plate, and protrusions at the bottom of the electric heating plate are movably embedded in the pressure strip. This solution uses an electric heating plate located inside the pressure strip to heat it. The pressure strip is positioned at the location where the sheet metal needs to be bent at a large angle. The heated pressure strip heats the area where the sheet metal is bent at a large angle. After being heated, the stress generated by bending within the material is reduced, thereby reducing the springback after bending and improving the quality of the finished stamped product. This solution has strong practicality.

[0004] The stamping die disclosed above is a single stamping die. Since the top crossbeam involves bending, punching and other processes, it also requires the production of a die. The above solution cannot perform composite stamping of the top crossbeam. Therefore, we designed a high-precision composite stamping die for automotive top crossbeams. Summary of the Invention

[0005] The purpose of this invention is to provide a high-precision composite stamping die for automotive roof beams to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solution: a high-precision automotive roof crossbeam composite stamping die, comprising an upper template seat, a lower template seat, an upper stamping die body, and a lower stamping die body. The upper template seat is fixedly connected to the upper stamping die body, and the lower template seat is fixedly connected to the lower stamping die body, with the lower stamping die body and the upper stamping die body being closed together. The stamping surface of the lower stamping die body is provided with a stamping station one, a punching station two, a bending station three, and a punching station four. The stamping surface of the upper stamping die body is provided with a stamping station end one, a stamping station end two, a stamping station end three, and a punching station end four, which correspond sequentially to the stamping station one, the punching station two, the bending station three, and the punching station four.

[0007] In the aforementioned high-precision automotive roof crossbeam composite stamping die, the inner cavity of stamping station one is equipped with a cylinder assembly fixing seat. Multiple cylinders are integrated on the cylinder assembly fixing seat, and the output ends of these cylinders are connected to the stamping pad of station one via a carrier plate. The top of the stamping pad of station one is equipped with a corresponding roof crossbeam stamping die strip. The purpose of this arrangement is to utilize the cylinders to drive the roof crossbeam stamping die strip upwards to achieve the stamping and forming of the roof crossbeam, thereby obtaining a specific outline shape of the roof crossbeam.

[0008] In the aforementioned high-precision automotive roof crossbeam composite stamping die, a punching die is installed at the stamping end of the second stamping station. Both ends of the punching die are equipped with punching limiting ends. The bottom end of the punching die is provided with a top crossbeam punching die base located on the second stamping station, with both ends of the top crossbeam punching die base corresponding to the punching limiting ends. The purpose of this arrangement is to enable punching or punching operations on the top crossbeam through the closing of the punching die and the top crossbeam punching die base, thereby obtaining a contour curve that fits the automotive roof.

[0009] In the aforementioned high-precision automotive roof crossbeam composite stamping die, a composite bending die template is fixedly installed at the third stamping station, and a bending die is installed at the bottom end of the composite bending die template. The purpose of this arrangement is to bend the corners of the roof crossbeam, thereby obtaining the bending angle of the roof crossbeam.

[0010] In the aforementioned high-precision automotive roof crossbeam composite stamping die, a composite punching die body is provided at the bottom end of the fourth stamping station, corresponding to the fourth stamping station. The purpose of this arrangement is to punch holes in the roof crossbeam in one pass using the composite punching die body, facilitating the acquisition of mounting holes for the roof crossbeam.

[0011] The aforementioned high-precision automotive roof crossbeam composite stamping die also includes two sets of first guide rails and two sets of second guide rails. The two sets of first guide rails are fixed to the two ends of punching station two and punching station four via positioning seats. The two sets of second guide rails are connected to the lower stamping die body and correspond to the bottom center of the punching die and the bottom center of the composite punching die body. Each set of second guide rails consists of two rails, and each second guide rail has a scraper at its lowest point. This arrangement facilitates the discharge of waste generated during punching at punching stations two and four, allowing for better waste collection and preventing waste from entering the lower stamping die body.

[0012] Compared with the prior art, the advantages of this high-precision automotive roof crossbeam composite stamping die are as follows: by setting stamping station one, punching station two, bending station three and punching station four on the stamping surface of the lower die body, and stamping station end one, stamping station end two, stamping station end three and punching station end four on the stamping surface of the upper die body, corresponding to stamping station one, punching station two, bending station three and punching station four in sequence, stamping can be performed at four stations simultaneously, which greatly improves the accuracy and quality of stamping, shortens the stamping operation time, and reduces the number of dies required. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the high-precision automotive roof crossbeam composite stamping die of this utility model.

[0014] Figure 2 This is a three-dimensional structural diagram of the lower die body of the high-precision automotive roof crossbeam composite stamping die of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the upper die body of the high-precision automotive roof crossbeam composite stamping die of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the top crossbeam stamping die strip of the high-precision automotive top crossbeam composite stamping die of this utility model.

[0017] Figure 5 This is a schematic diagram of the punching die of the high-precision automotive roof crossbeam composite stamping mold of this utility model.

[0018] Figure 6 This is a schematic diagram of the planar structure of the high-precision automotive roof crossbeam composite stamping die punching die of this utility model.

[0019] Figure 7 This is a three-dimensional structural diagram of the high-precision automotive roof crossbeam composite stamping die bending die of this utility model.

[0020] Figure 8This is a three-dimensional structural diagram of the composite punching die body of the high-precision automotive roof crossbeam composite stamping mold of this utility model.

[0021] In the diagram, 1. Upper template base; 2. Lower template base; 3. Upper stamping die body; 4. Lower stamping die body; 5. Stamping station one; 51. Stamping station end one; 6. Punching station two; 61. Stamping station end two; 7. Bending station three; 71. Stamping station end three; 8. Punching station four; 81. Stamping station end four; 9. First guide rail; 10. Positioning seat; 11. Blanking shovel; 12. Cylinder; 13. Station one stamping pad; 14. Top crossbeam stamping die strip; 15. Cylinder assembly fixing seat; 16. Punching die; 17. Punching limit end; 18. Second guide rail; 19. Bending die; 20. Composite bending die template; 21. Composite punching die body; 22. Top crossbeam punching die base. Detailed Implementation

[0022] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, this utility model relates to a high-precision composite stamping die for automotive roof crossbeams.

[0024] Example 1: The composite stamping die includes an upper template base 1, a lower template base 2, an upper stamping die body 3, and a lower stamping die body 4. The upper template base 1 is fixedly connected to the upper stamping die body 3, and the lower template base 2 is fixedly connected to the lower stamping die body 4. The lower stamping die body 4 and the upper stamping die body 3 are closed together. The stamping surface of the lower stamping die body 4 is provided with a stamping station 1 5, a punching station 2 6, a bending station 3 7, and a punching station 4 8. The stamping surface of the upper stamping die body 3 is provided with a stamping station end 1 51, a stamping station end 2 61, a stamping station end 3 71, and a stamping station end 4 81. The above stations correspond to each other in sequence.

[0025] Among them, such as Figure 4 As shown, the inner cavity of stamping station 5 is provided with a cylinder assembly fixing seat 15. Multiple cylinders 12 are integrated on the cylinder assembly fixing seat 15. The output ends of the multiple cylinders 12 are connected to the stamping pad 13 of station 5 through a carrier plate. The top of the stamping pad 13 of station 5 is provided with a top crossbeam stamping die strip 14 corresponding to the stamping station end 51.

[0026] Furthermore, such as Figure 5 and Figure 6As shown, a punching die 16 is installed on the punching end of the second punching station 61. Both ends of the punching die 16 are equipped with punching limiting ends 17. The bottom end of the punching die 16 is provided with a top crossbeam punching die base 22 located on the second punching station 6. Both ends of the top crossbeam punching die base 22 correspond to the punching limiting ends 17.

[0027] like Figure 7 As shown, a composite bending die template 20 is fixedly installed at the stamping station end 3 71, and a bending die 19 is installed at the bottom end of the composite bending die template 20.

[0028] like Figure 8 As shown, a composite punching die body 21 is provided at the bottom end of the stamping station end 81, and the composite punching die body 21 corresponds to the stamping station end 81.

[0029] To simplify the workstations and facilitate the stamping of simple top beams, Embodiment 2 is provided: The composite stamping die includes an upper template base 1, a lower template base 2, an upper stamping die body 3, and a lower stamping die body 4. The upper template base 1 is fixedly connected to the upper stamping die body 3, and the lower template base 2 is fixedly connected to the lower stamping die body 4. The lower stamping die body 4 and the upper stamping die body 3 are closed together. The stamping surface of the lower stamping die body 4 is provided with a stamping station 1 5 and a punching station 2 6. The stamping surface of the upper stamping die body 3 is provided with a stamping station end 1 51 and a stamping station end 2 61. The stamping station end 1 51 and the stamping station end 2 61 correspond to the stamping station 1 5 and the punching station 2 6 in sequence.

[0030] Please refer to Figure 4 As shown, the inner cavity of stamping station 5 is provided with a cylinder assembly fixing seat 15. Multiple cylinders 12 are integrated on the cylinder assembly fixing seat 15. The output ends of the multiple cylinders 12 are connected to the stamping pad 13 of station 5 through a carrier plate. The top of the stamping pad 13 of station 5 is provided with a top crossbeam stamping die strip 14 corresponding to the stamping station end 51.

[0031] Please refer to Figure 5 and Figure 6 As shown, a punching die 16 is installed on the punching end of the second punching station 61. Both ends of the punching die 16 are equipped with punching limiting ends 17. The bottom end of the punching die 16 is provided with a top crossbeam punching die base 22 located on the second punching station 6. Both ends of the top crossbeam punching die base 22 correspond to the punching limiting ends 17.

[0032] Example 3: The composite stamping die includes an upper template base 1, a lower template base 2, an upper stamping die body 3, and a lower stamping die body 4. The upper template base 1 is fixedly connected to the upper stamping die body 3, and the lower template base 2 is fixedly connected to the lower stamping die body 4. The lower stamping die body 4 and the upper stamping die body 3 are closed together. The stamping surface of the lower stamping die body 4 is provided with a stamping station 1 5, a punching station 2 6, a bending station 3 7, and a punching station 4 8. The stamping surface of the upper stamping die body 3 is provided with a stamping station end 1 51, a stamping station end 2 61, a stamping station end 3 71, and a stamping station end 4 81. The above stations correspond to each other in sequence.

[0033] As shown in Embodiment 1, the stamping structure of each station is as described in Embodiment 1 and will not be repeated here. It further includes two sets of first guide rails 9 and two sets of second guide rails 18, which facilitates the discharge of waste generated by punching at punching station 2 6 and punching station 4 8, and makes it easier to collect waste and prevent waste from entering the lower die body 4.

[0034] The specific connection is as follows: the two sets of first guide rails 9 are fixed to the two ends of the punching station 2 6 and the two ends of the punching station 4 8 through the positioning seat 10; the two sets of second guide rails 18 are connected to the stamping lower die body 4 and correspond to the bottom center of the punching die 16 and the bottom center of the composite punching die body 21.

[0035] Furthermore, to ensure symmetry between the left and right ends, there are two second guide rails 18 in each group, and a dropping shovel 11 is provided at the lowest end of each second guide rail 18, which facilitates better handling of the dropped material.

[0036] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A high-precision composite stamping die for an automotive roof crossbeam, comprising an upper template seat (1), a lower template seat (2), an upper stamping die body (3), and a lower stamping die body (4), wherein the upper template seat (1) is fixedly connected to the upper stamping die body (3), and the lower template seat (2) is fixedly connected to the lower stamping die body (4), and the lower stamping die body (4) is closed with the upper stamping die body (3), characterized in that, The stamping surface of the lower stamping die (4) is provided with stamping station one (5), punching station two (6), bending station three (7) and punching station four (8). The stamping surface of the upper stamping die (3) is provided with stamping station end one (51), stamping station end two (61), stamping station end three (71) and stamping station end four (81). The stamping station end one (51), stamping station end two (61), stamping station end three (71) and stamping station end four (81) correspond to stamping station one (5), punching station two (6), bending station three (7) and punching station four (8) in sequence.

2. The high-precision automotive roof crossbeam composite stamping die according to claim 1, characterized in that, The inner cavity of the stamping station 1 (5) is provided with a cylinder assembly fixing seat (15), and multiple cylinders (12) are integrated on the cylinder assembly fixing seat (15). The output ends of the multiple cylinders (12) are connected to the stamping pad (13) of the station 1 through a carrier plate. The top of the stamping pad (13) of the station 1 is provided with a top crossbeam stamping die strip (14) corresponding to the stamping station end 1 (51).

3. The high-precision automotive roof crossbeam composite stamping die according to claim 1, characterized in that, The stamping end of the second stamping station (61) is equipped with a punching die (16), and both ends of the punching die (16) are equipped with punching limiting ends (17). The bottom end of the punching die (16) is provided with a top crossbeam punching die seat (22) located on the second stamping station (6), and both ends of the top crossbeam punching die seat (22) correspond to the punching limiting ends (17).

4. The high-precision automotive roof crossbeam composite stamping die according to claim 1, characterized in that, The stamping station end three (71) is fixedly provided with a composite bending die template (20), and a bending die (19) is installed at the bottom end of the composite bending die template (20).

5. The high-precision automotive roof crossbeam composite stamping die according to claim 1, characterized in that, The bottom end of the stamping station end four (81) is provided with a composite punching die body (21), which corresponds to the stamping station end four (81).

6. The high-precision automotive roof crossbeam composite stamping die according to claim 1, characterized in that, It also includes two sets of first guide rails (9) and two sets of second guide rails (18). The two sets of first guide rails (9) are fixed at both ends of the punching station two (6) and the punching station four (8) by positioning seats (10). The two sets of second guide rails (18) are connected to the stamping die body (4) and correspond to the bottom center of the punching die (16) and the bottom center of the composite punching die body (21).

7. The high-precision automotive roof crossbeam composite stamping die according to claim 6, characterized in that, The number of the second guide rails (18) in each group is two, and a material drop shovel (11) is provided at the lowest end of each second guide rail (18).

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