A die for flanging one end of an inclined edge of an automobile door sill downwardly and obliquely

Abstract

This utility model provides a mold for flanging one end of the inclined vertical edge of an automobile door sill downwards. It includes an upper mold assembly, a lower mold assembly, and a connecting rod. The upper mold assembly is connected to a stamping device via the connecting rod. The product part is positioned using a locating pin in the lower mold assembly. The product part is fixed and pressed by a clamping mechanism in the upper mold assembly and a lower mold base in the lower mold assembly. During downward movement, the inclined wedge in the upper mold assembly moves to the left due to the force distribution from the inclined surface of the abutment block and the function of the slide rail assembly. The left inclined surface of the inclined wedge contacts the right inclined surface of the flanging upper mold. As the stamping device continues to move downwards, the inclined wedge moves to the lower left under the action of the inclined surface of the right inclined wedge abutment block, pressing the flanging upper mold to move to the lower left. During this movement, the shape of the rear end face of the flanging upper mold acts on the flanging of the product part, completing the flanging with the cooperation of the front end face of the flanging lower mold. This utility model broadens the application range of stamping dies and improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, and is particularly applicable to molds for automobile door sills with one end of the inclined vertical edge turned outward in a downward direction. Background Technology

[0002] Door sills are common automotive parts, serving to protect the doors from collision damage and absorb and disperse impact forces, thus enhancing vehicle safety. Automotive door sills are typically made by roll-forming steel strips of a certain width into a specified cross-section, followed by stamping to create the detailed features of the part. To improve functionality, the structure of the part is also modified to varying degrees. For example… Figure 5 The product shown has a conventional Z-shaped cross-section, with a small area on one side of the slanted edge that is turned outwards. The direction of this turn is diagonally downwards in two directions. Traditional up-and-down or left-and-right turn molds cannot meet its requirements.

[0003] Chinese patent CN214078673U discloses a sheet metal flanging roller pressing device. By setting a clamping device, it can fix workpieces of different diameters. By setting a driving device, it can provide a power source for the movement of the clamping device. By setting the diameter ratio between gear one and gear two, it can increase the applicability of the device. However, it cannot solve the problem of the car door sill flanging in two directions with one end of the inclined vertical edge facing downwards.

[0004] In summary, developing a mold for flanging one end of the sloping vertical edge of an automobile door sill in a downward direction, thereby broadening the application scope and function of stamping dies, reducing processing steps, and improving production efficiency, has become an urgent issue for relevant technical personnel in this field to address. Utility Model Content

[0005] The purpose of this utility model is to provide a mold for flanging one end of the sloping vertical edge of an automobile door sill in a downward sloping direction, which solves the problem of flanging one end of the sloping vertical edge of an automobile door sill in a downward sloping direction, completes the flanging in a downward sloping direction in one step, broadens the application range and function of stamping molds, reduces processing steps, and improves production efficiency.

[0006] The problem described in this utility model is solved by the following technical solution: A mold for flanging one end of a car door sill downwards includes an upper mold assembly, a lower mold assembly, a product part, and a connecting rod. The upper mold assembly is connected to a stamping device via the connecting rod. The upper mold assembly includes an upper template, a wedge, a clamping mechanism, and a moving mechanism. The clamping mechanism is located behind the moving mechanism and is fixedly connected to the upper template. The wedge is fixedly connected to the moving mechanism. The lower mold assembly includes a lower template, an upper mold base support block, a flanging upper mold base, a sliding frame, a flanging upper mold, a wedge support block, a rear support plate, a wedge support block seat, a lower mold base, a flanging lower mold, and a second spring. The lower mold base is located directly below the clamping mechanism. The sliding frame and the wedge support block are respectively provided with... The sliding frame is fixedly connected to the lower template through the upper mold base and the upper mold base support block, and is placed on the left and right sides of the wedge. The upper mold is floatingly connected to the upper mold base through the corresponding unloading screw and the second spring fitted on it. The upper mold is slidably connected to the sliding frame and can slide up and down along the sliding frame under the action of external force. The lower mold is provided behind the upper mold and is fixedly connected to the lower mold base. The wedge block is fixedly connected to the lower template through the rear plate and the wedge block seat. The product part is fixedly pressed by the pressing mechanism and the lower mold base. When the wedge moves to the left and down at the same time, it squeezes the upper mold to move to the lower left. With the cooperation of the lower mold, the flanging of the product part is completed.

[0007] The aforementioned mold for flanging one end of the inclined vertical edge of a car door sill downwards includes a moving mechanism comprising a slide rail assembly, an end stop, a first spring, and a second unloading screw. The slide rail assembly and the end stop are fixedly connected to the lower part of the upper template. The slider in the slide rail assembly is fixedly connected to the inclined wedge. The end stop is floatingly connected to the inclined wedge via the second unloading screw and the first spring mounted on it.

[0008] The aforementioned mold for flanging one end of the inclined edge of a car door sill downwards has an inclined surface on each of the left and right sides of the inclined wedge. The inclination angle of the left inclined surface of the inclined wedge is the same as the inclination angle of the right inclined surface of the upper mold for flanging, and the inclination angle of the right inclined surface of the inclined wedge is the same as the inclination angle of the left inclined surface of the inclined wedge block.

[0009] The above-mentioned mold for turning the inclined edge of a car door sill downwards includes a pressing mechanism comprising a pressure plate, an upper pad, a first unloading screw, and an upper spring. The upper pad is located below the upper template and is fixedly connected to the upper template. The pressure plate is located below the upper pad and is floatingly connected to the upper pad via the first unloading screw and the upper spring mounted on it.

[0010] The above-mentioned mold for flanging one end of the inclined vertical edge of an automobile door sill downwards, wherein the movement direction of the upper flanging mold is determined by the direction of the flanging surface of the product part, and the initial position movement direction is perpendicular to the surface to be flanged.

[0011] The aforementioned mold for flanging one end of the inclined vertical edge of an automobile door sill downwards has an inner shape of the lower mold base cross-section that matches the outer shape of the product part cross-section, and is used to support the bottom surface and side ribs of the product part.

[0012] The aforementioned mold for flanging one end of the inclined vertical edge of an automobile door sill downwards has a lower surface shape on the outer side of the pressure plate cross-section that matches the inner surface shape of the product part cross-section.

[0013] The aforementioned mold for flanging one end of the inclined vertical edge of a car door sill downwards has a stepped cross-sectional shape, with the high step portion matching the shape of the inner cavity of the sliding frame.

[0014] The aforementioned mold for flanging one end of the inclined vertical edge of an automobile door sill downwards includes a positioning pin on the lower mold base. The positioning pin is fixed on the positioning pin seat and is used to position the product part.

[0015] The aforementioned mold for flanging one end of the sloping vertical edge of a car door sill downwards has two adjacent end faces with the same shape as the lower flanging mold and the upper flanging mold. Beneficial effects

[0016] This utility model provides a mold for flanging one end of the sloping edge of an automobile door sill in a downward direction. The mold uses a wedge that can move left and right in the upper mold device and a wedge block in the lower mold device to cooperate with each other. During the downward movement of the upper mold device, the wedge fits into a downward movement angle, and the flanging upper mold, which moves perpendicular to the flanging surface, moves downward under the force applied in a suitable direction to complete the flanging. This solves the problem that conventional up-and-down or left-and-right flanging molds cannot achieve this, broadens the application range and function of stamping molds, reduces processing steps, and improves production efficiency. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the upper mold device in this utility model; Figure 3 This is a schematic diagram of the lower mold device in this utility model; Figure 4 This is a schematic diagram of the moving mechanism in this utility model; Figure 5 This is a schematic diagram of the clamping mechanism in this utility model; Figure 6 This is a structural schematic diagram of the present invention in its free state. Figure 7 This is a schematic diagram of the product component structure.

[0019] The list of labels in the diagram is as follows: 1. Lower template, 2. Upper mold base support block, 3. Flanged upper mold base, 4. Sliding frame, 5. Upper template, 6. Flanged upper mold, 7. Pressure plate, 8. Upper spring, 9. Slide rail assembly, 10. End stop block, 11. First spring, 12. Wedge, 13. Wedge support block, 14. Rear support plate, 15. Wedge support block seat, 16. Lower mold base, 17. Flanged lower mold, 18. Second spring, 19. Positioning pin seat, 20. Positioning pin, 21. Upper pad block, 22. Product part, 23. Connecting rod, 24. First unloading screw, 25. Second unloading screw, 30. Flanged edge, 31. Positioning hole, 40. Clamping mechanism, 41. Moving mechanism. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] See Figure 1 , Figure 2 , Figure 6The system includes an upper die assembly, a lower die assembly, a product part 22, and a connecting rod 23. The upper die assembly is connected to the stamping equipment via the connecting rod 23. The upper die assembly includes an upper template 5, a wedge 12, a clamping mechanism 40, and a moving mechanism 41. The clamping mechanism 40 is located behind the moving mechanism 41 and is fixedly connected to the upper template 5. The wedge 12 is fixedly connected to the moving mechanism 41. The lower die assembly includes a lower template 1, an upper die base support block 2, a flanged upper die base 3, a sliding frame 4, a flanged upper die 6, a wedge support block 13, a rear support plate 14, a wedge support block seat 15, a lower die base 16, a flanged lower die 17, and a second spring 18. The lower die base 16 is located directly below the clamping mechanism 40. The sliding frame 4 and the wedge support block 13 are respectively located on the left and right sides of the wedge 12. On the side, the sliding frame 4 is fixedly connected to the lower template 1 through the upper mold base 3 and the upper mold base support block 2. The upper mold 6 is floatingly connected to the upper mold base 3 through the corresponding unloading screw and the second spring 18 mounted on it. The upper mold 6 is slidably connected to the sliding frame 4 and can slide up and down along the sliding frame 4 under the action of external force. The lower mold 17 is provided behind the upper mold 6. The lower mold 17 is fixedly connected to the lower mold base 16. The wedge block 13 is fixedly connected to the lower template 1 through the rear support plate 14 and the wedge block seat 15. The product part 22 is fixedly pressed by the pressing mechanism 40 and the lower mold base 16. When the wedge 12 moves to the left and down at the same time, it squeezes the upper mold 6 to move to the lower left. With the cooperation of the lower mold 17, the flanging 30 of the product part 22 is completed.

[0023] See Figure 4 The moving mechanism 41 includes a slide rail assembly 9, an end stop 10, a first spring 11, and a second unloading screw 25. The slide rail assembly 9 and the end stop 10 are fixedly connected to the lower part of the upper template 5. The slider in the slide rail assembly 9 is fixedly connected to the wedge 12. The end stop 10 is floatingly connected to the wedge 12 through the second unloading screw 25 and the first spring 11 fitted on it.

[0024] See Figure 1 The wedge 12 has a slope on each of its left and right sides. The inclination angle of the left slope of the wedge 12 is the same as the inclination angle of the right slope of the upper mold 6. The inclination angle of the right slope of the wedge 12 is the same as the inclination angle of the left slope of the wedge block 13.

[0025] See Figure 5 The pressing mechanism 40 includes a pressure plate 7, an upper pad 21, a first unloading screw 24, and an upper spring 8. The upper pad 21 is located below the upper template 5 and is fixedly connected to the upper template 5. The pressure plate 7 is located below the upper pad 21 and is floatingly connected to the upper pad 21 through the first unloading screw 24 and the upper spring 8 mounted on it.

[0026] See Figure 1The movement direction of the upper flange mold 6 is determined by the direction of the flanged surface of the product part 22, and the initial position movement direction is perpendicular to the flanged surface.

[0027] See Figure 3 , Figure 7 The inner shape of the cross section of the lower mold base 16 is consistent with the outer shape of the cross section of the product part 22, and is used to support the bottom surface and side ribs of the product part 22.

[0028] See Figure 5 , Figure 7 The outer surface shape of the pressure plate 7 is consistent with the inner surface shape of the product part 22.

[0029] See Figure 3 The cross-sectional shape of the upper flange mold 6 is stepped, and the high step part is consistent with the shape of the inner cavity of the sliding frame 4.

[0030] See Figure 3 The lower mold base 16 is also provided with a positioning pin 20, which is fixed on the positioning pin base 19 and is used to position the product part 22.

[0031] See Figure 3 The two adjacent end faces of the lower flange die 17 and the upper flange die 6 have the same shape.

[0032] The working process of this utility model: The semi-finished part is placed on the lower die base 16 and positioned by the positioning pin 20. The stamping equipment is turned on, and as the stamping slide moves down, the upper die plate 5 drives the wedge 12 down, so that the right side of the wedge 12 first contacts the inclined surface of the wedge block 13. The stamping slide continues to move down, and with the help of the decomposition force of the inclined surface of the wedge block 13 and the function of the slide rail assembly 9, the wedge 12 moves to the left along the slide rail. The first spring 11 is compressed, and the pressure plate 7 contacts the product part 22. The stamping slide continues to move down, and the upper spring 8 is compressed, so that the pressure plate 7 presses the product part 22. Immediately afterwards, the left inclined surface of the wedge 12 contacts the right inclined surface of the flange upper die 6. At this time, the wedge 12 moves to the lower left under the action of the inclined surface of the right wedge block 13, thereby squeezing the flange upper die 6 to move to the lower left, so that its forming surface is in front of the product part 22.

[0033] As the upper mold device continues to descend, the pressure plate 7 further presses the product part 22, and the wedge 12 continuously squeezes the upper flanging mold 6. During the movement of the upper flanging mold 6 to the lower left, the shape of its rear end face acts on the flanging of the product part 22. With the cooperation of the front end face of the lower flanging mold 17, the flanging of the product part 22 continues until it is finished. At this point, the upper mold plate reaches its lowest position, and the mold closes as if... Figure 1 As shown.

[0034] After the flanging is completed, the upper die assembly rises with the press slide, and the wedge 12 moves upward with the slide rail assembly 9. During the upward movement, the first spring 11 gradually rebounds, causing the wedge 12 to move to the right. The flanging upper die 6 moves upward and disengages from the product part 22 during the rebound of the second spring 18. Subsequently, the pressure plate 7 rises with the press slide, the upper spring 8 rebounds, and the pressure plate 7 leaves the product part 22 until the flanging upper die 6 and the wedge 12, which participated in the forming, return to their initial positions. Figure 6 As shown, product part 22 can be successfully removed in this state, and the entire working process is now complete.

[0035] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A mold for flanging one end of the inclined vertical edge of an automobile door sill in a downward direction, characterized in that: The device includes an upper die assembly, a lower die assembly, and a connecting rod (23). The upper die assembly is connected to the stamping equipment via the connecting rod (23). The upper die assembly includes an upper template (5), a wedge (12), a clamping mechanism (40), and a moving mechanism (41). The clamping mechanism (40) is located behind the moving mechanism (41) and is fixedly connected to the upper template (5). The wedge (12) is fixedly connected to the moving mechanism (41). The lower die assembly includes a lower template (1), an upper die support block (2), a flanged upper die base (3), a sliding frame (4), a flanged upper die (6), a wedge support block (13), a rear support plate (14), a wedge support block seat (15), a lower die base (16), a flanged lower die (17), and a second spring (18). The lower die base (16) is located directly below the clamping mechanism (40). The sliding frame (4) The inclined wedge and the inclined wedge block (13) are respectively set on the left and right sides of the inclined wedge (12). The sliding frame (4) is fixedly connected to the lower template (1) through the upper mold base (3) and the upper mold base support block (2). The upper mold (6) is floatingly connected to the upper mold base (3) through the corresponding unloading screw and the second spring (18) fitted on it. The upper mold (6) is slidably connected to the sliding frame (4). Under the action of external force, it can slide up and down along the sliding frame (4). The upper mold (6) is provided with a lower mold (17) behind it. The lower mold (17) is fixedly connected to the lower mold base (16). The inclined wedge block (13) is fixedly connected to the lower template (1) through the rear support plate (14) and the inclined wedge block seat (15). The product part (22) is fixedly pressed by the pressing mechanism (40) and the lower mold base (16). When the inclined wedge (12) moves to the left and down at the same time, it squeezes the upper mold (6) to move to the lower left. With the cooperation of the flanging die (17), the flanging (30) of the product part (22) is completed.

2. The mold for flanging one end of the inclined vertical edge of an automobile door sill in a downward direction according to claim 1, characterized in that: The moving mechanism (41) includes a slide rail assembly (9), an end stop (10), a first spring (11), and a second unloading screw (25). The slide rail assembly (9) and the end stop (10) are fixedly connected to the lower part of the upper template (5). The slider in the slide rail assembly (9) is fixedly connected to the wedge (12). The end stop (10) is floatingly connected to the wedge (12) through the second unloading screw (25) and the first spring (11) fitted on it.

3. The mold for flanging one end of the inclined vertical edge of an automobile door sill in a downward direction according to claim 1, characterized in that: The wedge (12) has a slope on each side. The inclination angle of the left slope of the wedge (12) is the same as the inclination angle of the right slope of the upper mold (6) and the inclination angle of the right slope of the wedge (12) is the same as the inclination angle of the left slope of the wedge block (13).

4. A mold for flanging one end of the inclined vertical edge of an automobile door sill in a downward direction according to claim 1, characterized in that: The pressing mechanism (40) includes a pressure plate (7), an upper pad (21), a first unloading screw (24), and an upper spring (8). The upper pad (21) is located below the upper template (5) and is fixedly connected to the upper template (5). The pressure plate (7) is located below the upper pad (21) and is floatingly connected to the upper pad (21) through the first unloading screw (24) and the upper spring (8) fitted on it.

5. A mold for flanging one end of the inclined vertical edge of an automobile door sill in a downward direction according to claim 1, characterized in that: The movement direction of the upper flanging die (6) is determined by the direction of the flanging surface of the product part (22), and the initial position movement direction is perpendicular to the flanging surface.

6. A mold for flanging one end of the inclined vertical edge of an automobile door sill in a downward direction according to claim 1, characterized in that: The inner shape of the lower mold base (16) is consistent with the outer shape of the product part (22) and is used to support the bottom surface and side ribs of the product part (22).

7. A mold for flanging one end of the inclined vertical edge of a car door sill in a downward direction according to claim 4, characterized in that: The outer surface shape of the cross-section of the pressure plate (7) is consistent with the inner surface shape of the cross-section of the product part (22).

8. A mold for flanging one end of the inclined vertical edge of an automobile door sill in a downward direction according to claim 1, characterized in that: The cross-sectional shape of the flange upper mold (6) is stepped, and the high step part is consistent with the inner cavity shape of the sliding frame (4).

9. A mold for flanging one end of the inclined vertical edge of an automobile door sill in a downward direction according to claim 1, characterized in that: The lower mold base (16) is also provided with a positioning pin (20), which is fixed on the positioning pin seat (19) and is used to position the product part (22).

10. A mold for flanging one end of the inclined vertical edge of an automobile door sill in a downward direction according to claim 1, characterized in that: The two adjacent end faces of the lower flange die (17) and the upper flange die (6) have the same shape.

Images