A drawing die for the C-shaped lower crossbeam of an automobile

Abstract

The present invention provides a drawing die for an automotive C-shaped lower cross beam, which includes an upper die base, a lower die base, a drawing female die, a drawing male die, a flipping and unloading mechanism, and a cylinder shaping mechanism. The upper die base is provided with guide columns, and the lower die base is provided with guide sleeves. The guide columns are slidably connected to the guide sleeves. The drawing female die is arranged at the bottom of the upper die base, the cylinder shaping mechanism is arranged at the top of the lower die base, the drawing male die is arranged on the cylinder shaping mechanism, and the drawing male die is arranged directly below the drawing female die. The flipping and unloading mechanism is arranged on opposite sides of the top of the lower die base, and the flipping and unloading mechanism extends to both sides of the drawing male die. The present invention can realize the stripping of the product through the clamping and flipping of the jaws. The flipping and unloading mechanism has no interference with the drawing forming process and the shaping process. The structure is reasonably designed, greatly improving the stripping efficiency, avoiding the risk of workers taking materials inside the die, and having a high safety factor.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile manufacturing, and more particularly, to a drawing die for an automobile C-shaped lower cross beam. Background Art

[0002] Drawing forming is an important sheet metal stamping forming method and is widely used in the field of automobile manufacturing. With the increasing complexity and higher precision of modern product parts, the technical requirements for the drawing forming process are also getting higher and higher. When producing the automobile C-shaped lower cross beam, the flow of materials at various positions in the die is inconsistent, resulting in wrinkling at local positions, which requires sizing treatment after drawing forming. In addition, after the automobile C-shaped lower cross beam is processed in the die, it is usually manually removed by workers, which not only has low operation efficiency but also poses a safety hazard. Summary of the Invention

[0003] In view of this, the present invention provides a drawing die for an automobile C-shaped lower cross beam, which solves the problems of wrinkling at local positions after drawing forming of the automobile C-shaped lower cross beam and the need for manual unloading in the prior art.

[0004] To this end, on the one hand, the present invention provides a drawing die for an automobile C-shaped lower cross beam, which includes an upper die base, a lower die base, a drawing female die, a drawing male die, a flipping unloading mechanism, and a cylinder shaping mechanism. The upper die base is provided with guide columns, and the lower die base is provided with guide sleeves. The guide columns are slidably connected to the guide sleeves. The drawing female die is provided at the bottom of the upper die base, and the cylinder shaping mechanism is provided on the top of the lower die base. The drawing male die is provided on the cylinder shaping mechanism and is directly below the drawing female die. The flipping unloading mechanism is provided on opposite sides of the top of the lower die base and extends to both sides of the drawing male die.

[0005] Further, the flipping unloading mechanism includes a support plate, a rotary cylinder, a first cylinder, a clamping jaw, and a connection adjustment mechanism. The support plate is provided on the top of the lower die base, the rotary cylinder is provided on the side wall of the support plate, the connection adjustment mechanism connects the rotary cylinder and the first cylinder, and the clamping jaw is provided on the first cylinder. The first cylinder drives the clamping jaw to grab the product, and the rotary cylinder rotates to act on the first cylinder and the clamping jaw to flip the workpiece out of the die.

[0006] Further, the connection adjustment mechanism includes a first positioning rod, a first fastener, a second positioning rod, a second fastener, a third positioning rod, and a universal ball joint. The first positioning rod is provided on the rotary cylinder, the first fastener connects the first positioning rod and the second positioning rod, the second fastener connects the second positioning rod and the third positioning rod, and the universal ball joint connects the third positioning rod and the first cylinder.

[0007] Further, the first positioning rod and the second positioning rod are arranged in a normal direction, and the second positioning rod and the third positioning rod are arranged in a normal direction.

[0008] Further, the above-mentioned cylinder shaping mechanism includes a second cylinder, a slider, a slide rail, and a connecting plate. The second cylinder is fixedly connected to the top of the lower die base. There are 2 slide rails arranged on the top of the lower die base. The slider is slidably connected to the two slide rails. The connecting plate is fixedly connected to the top of the slider, and the connecting plate is arranged on one side of the second cylinder. The drawing punch is arranged on the connecting plate. The second cylinder has a driving effect on the sliding of the slider, and the connecting plate has a fixed supporting effect on the drawing punch.

[0009] Further, on the relatively two sides of the top of the above-mentioned drawing punch, there are clearance grooves arranged as blind holes respectively, and the clamping jaws are arranged in the clearance grooves, which is beneficial for the clamping jaws to find the acting position for clamping the product without interfering with the product.

[0010] Further, there is a positioning pin on the above-mentioned drawing punch.

[0011] Further, the above-mentioned slider is arranged between the second cylinder and the support plate to ensure that the cylinder shaping mechanism stretches and shapes the product to both sides.

[0012] In the drawing die for the automotive C-shaped lower crossbeam provided by the present invention, the clamping jaws are driven by the telescopic movement of the first cylinder to clamp the product. The connection adjustment mechanism connects the first cylinder and the rotary cylinder, so that the position of the clamping jaws can be adjusted. The rotary cylinder rotates to drive the clamping jaws to flip the product to realize the blanking operation; the second cylinder drives the slider to slide on the slide rail, and the connecting plate connects the drawing punch to slide and separate to both sides. The positioning pin fixes the product and stretches it to both sides to complete the shaping of the product.

[0013] Therefore, the present invention has the following beneficial effects compared with the prior art:

[0014] 1) The blanking of the product can be realized by the clamping and flipping of the clamping jaws. The flipping blanking mechanism does not interfere with the drawing forming process and the shaping process. The structural design is reasonable, which greatly improves the blanking efficiency, avoids the risk of workers taking materials in the die, and has a high safety factor;

[0015] 2) The shaping of the product is realized by the second cylinder pushing the drawing punch to slide. The cylinder shaping mechanism is arranged inside the die, so that the drawing forming and shaping are completed in the same station, which not only has high processing accuracy but also high production efficiency. Description of the Drawings

[0016] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of a drawing die for an automotive C-shaped lower crossbeam provided by an embodiment of the present invention;

[0018] Figure 2 This is a schematic structural diagram of the lower die base in a drawing die for an automotive C-shaped lower crossbeam provided by an embodiment of the present invention;

[0019] Figure 3 This is a schematic structural diagram of the upper die base in a drawing die for an automotive C-shaped lower crossbeam provided by an embodiment of the present invention;

[0020] Figure 4 This is a schematic structural diagram of the flipping and unloading mechanism in a drawing die for an automotive C-shaped lower crossbeam provided by an embodiment of the present invention;

[0021] Figure 5 This is a schematic structural diagram of the cylinder shaping mechanism in a drawing die for an automotive C-shaped lower crossbeam provided by an embodiment of the present invention;

[0022] Figure 6 This is a reference diagram of the usage state of a drawing die for an automotive C-shaped lower crossbeam provided by an embodiment of the present invention.

[0023] Wherein, 1 - upper die base; 2 - lower die base; 3 - drawing female die; 4 - drawing male die; 5 - flipping and unloading mechanism; 51 - support plate; 52 - rotating cylinder; 53 - first cylinder; 54 - clamping jaw; 55 - connection adjustment mechanism; 551 - first positioning rod; 552 - first fastener; 553 - second positioning rod; 554 - second fastener; 555 - third positioning rod; 556 - universal ball joint; 6 - cylinder shaping mechanism; 61 - second cylinder; 62 - slider; 63 - slide rail; 64 - connecting plate; 7 - guide pillar; 8 - guide sleeve; 9 - clearance groove; 10 - positioning pin. Detailed implementation manners

[0024] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0025] See Figures 1 to 6, this embodiment provides a drawing die for the C-shaped lower crossbeam of an automobile. Specifically, a upper die base 1, a lower die base 2, a drawing female die 3, a drawing male die 4, a turning unloading mechanism 5 and a cylinder shaping mechanism 6 are first set. A guide pillar 7 is provided on the upper die base 1, and a guide sleeve 8 is provided on the lower die base 2. The guide pillar 7 is slidably connected within the guide sleeve 8. The drawing female die 3 is arranged at the bottom of the upper die base 1, the cylinder shaping mechanism 6 is arranged on the top of the lower die base 2, the drawing male die 4 is arranged on the cylinder shaping mechanism 6, and the drawing male die 4 is arranged directly below the drawing female die 3. The turning unloading mechanism 5 is arranged on opposite sides at the top of the lower die base 2, and the turning unloading mechanism 5 extends to both sides of the drawing male die 4.

[0026] See Figures 1 to 6 , specifically, the turning unloading mechanism 5 includes a support plate 51, a rotary cylinder 52, a first cylinder 53, a jaw 54 and a connection adjustment mechanism 55. The support plate 51 is arranged on the top of the lower die base 2, the rotary cylinder 52 is arranged on the side wall of the support plate 51. The connection adjustment mechanism 55 connects the rotary cylinder 52 and the first cylinder 53. The jaw 54 is arranged on the first cylinder 53. The connection adjustment mechanism 55 includes a first positioning rod 551, a first fastener 552, a second positioning rod 553, a second fastener 554, a third positioning rod 555 and a universal ball joint 556. The first positioning rod 551 is arranged on the rotary cylinder 52. The first fastener 552 connects the first positioning rod 551 and the second positioning rod 553. The second fastener 554 connects the second positioning rod 553 and the third positioning rod 555. The universal ball joint 556 connects the third positioning rod 555 and the first cylinder 53. The first positioning rod 551 and the second positioning rod 553 are arranged in a normal direction. The second positioning rod 553 and the third positioning rod 555 are arranged in a normal direction. The cylinder shaping mechanism 6 includes a second cylinder 61, a slider 62, a slide rail 63 and a connecting plate 64. The second cylinder 61 is fixedly connected to the top of the lower die base 2. Two slide rails 63 are arranged on the top of the lower die base 2. The slider 62 is slidably connected to the two slide rails 63. The connecting plate 64 is fixedly connected to the top of the slider 62, and the connecting plate 64 is arranged on one side of the second cylinder 61. The drawing male die 4 is arranged on the connecting plate 64. Blind clearance grooves 9 are respectively arranged on opposite sides at the top of the drawing male die 4. The jaw 54 is arranged within the clearance grooves 9. A positioning pin 10 is arranged on the drawing male die 4. The slider 62 is arranged between the second cylinder 61 and the support plate 51.

[0027] During specific use, first, place the blank above the drawing punch 4. The upper die holder 1 and the guide pillar 7 slide along the guide sleeve 8 together. Under the action of the drawing die 3 and the drawing punch 4, the C-shaped lower crossbeam is drawn and formed. Secondly, the second cylinder 61 pushes the slider 62 to slide on the slide rail 63. The slider 62 drives the connecting plate 64 and the drawing punch 4 to slide towards both sides of the mold. The positioning pin 10 pulls the C-shaped lower crossbeam to stretch outwards to complete the shaping of the C-shaped lower crossbeam. Finally, the first cylinder 53 contracts to drive the clamping jaw 54 to clamp. The rotary cylinder 52 rotates, and under the support of the connecting and adjusting mechanism 55, the clamping jaw 54 is flipped. The first cylinder 53 extends to drive the clamping jaw 54 to loosen, completing the stripping of the C-shaped lower crossbeam in the mold. In addition, when stripping C-shaped lower crossbeams of different specifications, adjust the fixing points of the first positioning rod 551 and the second positioning rod 553 on the first fastener 552, adjust the fixing points of the second positioning rod 553 and the third positioning rod 555 on the second fastener 554, and adjust the universal ball joint 556 so that the clamping jaw 54 is located in the clearance groove 9.

[0028] In a drawing die for an automotive C-shaped lower crossbeam provided in this embodiment, the clamping jaw is driven to clamp the product by the telescopic movement of the first cylinder. The connecting and adjusting mechanism connects the first cylinder and the rotary cylinder, enabling the position of the clamping jaw to be adjustable. The rotary cylinder rotates to drive the clamping jaw to flip the product, realizing the stripping operation. The slider is driven to slide on the slide rail by the second cylinder. The connecting plate connects the drawing punch and slides and separates towards both sides, and the positioning pin fixes the product and stretches it towards both sides to complete the shaping of the product.

[0029] Therefore, the present invention has the following beneficial effects compared with the prior art:

[0030] 1) The stripping of the product can be realized through the clamping and flipping of the clamping jaw. The flipping and discharging mechanism does not interfere with the drawing and forming process and the shaping process. The structural design is reasonable, greatly improving the stripping efficiency, avoiding the risk of workers taking materials inside the mold, and having a high safety factor.

[0031] 2) The shaping of the product is achieved by pushing the drawing punch to slide by the second cylinder. The cylinder shaping mechanism is arranged inside the mold, enabling the drawing and forming and the shaping to be completed at the same station, not only with high processing accuracy but also high production efficiency.

[0032] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these changes and modifications.

Claims

1. A drawing die for the C-shaped lower crossbeam of an automobile, characterized in that, it includes an upper die base (1), a lower die base (2), a drawing female die (3), a drawing male die (4), a flipping unloading mechanism (5) and a cylinder shaping mechanism (6). A guide pillar (7) is provided on the upper die base (1), a guide sleeve (8) is provided on the lower die base (2), the guide pillar (7) is slidably connected inside the guide sleeve (8), the drawing female die (3) is arranged on the bottom of the upper die base (1), the cylinder shaping mechanism (6) is arranged on the top of the lower die base (2), the drawing male die (4) is arranged on the cylinder shaping mechanism (6), and the drawing male die (4) is arranged directly below the drawing female die (3). The flipping unloading mechanism (5) is arranged on the opposite sides of the top of the lower die base (2), and the flipping unloading mechanism (5) extends to both sides of the drawing male die (4). The flipping unloading mechanism (5) includes a support plate (51), a rotary cylinder (52), a first cylinder (53), a clamping jaw (54) and a connection adjustment mechanism (55). The support plate (51) is arranged on the top of the lower die base (2), the rotary cylinder (52) is arranged on the side wall of the support plate (51), the connection adjustment mechanism (55) connects the rotary cylinder (52) and the first cylinder (53), the clamping jaw (54) is arranged on the first cylinder (53). The cylinder shaping mechanism (6) includes a second cylinder (61), a slider (62), a slide rail (63) and a connecting plate (64). The second cylinder (61) is fixedly connected to the top of the lower die base (2), two slide rails (63) are arranged on the top of the lower die base (2), the slider (62) is slidably connected to the two slide rails (63), the connecting plate (64) is fixedly connected to the top of the slider (62), and the connecting plate (64) is arranged on one side of the second cylinder (61). The drawing male die (4) is arranged on the connecting plate (64). Blind clearance grooves (9) are respectively arranged on the opposite sides of the top of the drawing male die (4). The clamping jaw (54) is arranged in the clearance grooves (9). A positioning pin (10) is arranged on the drawing male die (4). During use, first, place the blank above the drawing male die (4). The upper die base (1) and the guide pillar (7) slide along the guide sleeve (8) together. Under the action of the drawing female die (3) and the drawing male die (4), the C-shaped lower crossbeam is drawn and formed. Second, the second cylinder (61) pushes the slider (62) to slide on the slide rail (63). The slider (62) drives the connecting plate (64) and the drawing male die (4) to slide towards both sides of the die. The positioning pin (10) pulls the C-shaped lower crossbeam to stretch outwards to complete the shaping of the C-shaped lower crossbeam.

2. A drawing die for the C-shaped lower crossbeam of an automobile according to claim 1, characterized in that, The connection adjustment mechanism (55) includes a first positioning rod (551), a first fastener (552), a second positioning rod (553), a second fastener (554), a third positioning rod (555) and a universal ball joint (556). The first positioning rod (551) is arranged on the rotary cylinder (52). The first fastener (552) connects the first positioning rod (551) and the second positioning rod (553). The second fastener (554) connects the second positioning rod (553) and the third positioning rod (555). The universal ball joint (556) connects the third positioning rod (555) and the first cylinder (53).

3. A drawing die for the C-shaped lower crossbeam of an automobile according to claim 2, characterized in that, the first positioning rod (551) and the second positioning rod (553) are arranged in a normal direction, and the second positioning rod (553) and the third positioning rod (555) are arranged in a normal direction.

4. A drawing die for the C-shaped lower crossbeam of an automobile according to claim 1, characterized in that, the slider (62) is arranged between the second cylinder (61) and the support plate (51).

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