Continuous stamping die for automobile body cross beam support

Abstract

The utility model relates to the technical field of stamping, in particular to a continuous stamping die for an automobile body beam support, which comprises a base and a bottom die, the bottom die is fixedly connected to the upper end face of the base, an adjusting mechanism is arranged in the bottom die, and the adjusting mechanism comprises a sliding rod, a connecting plate, a limiting rod, an impact rod and an impact head. The hydraulic cylinder is provided with a plurality of sliding rods, the sliding rods are divided into two groups, the number of each group is two, and the two sliding rods are connected to the two ends of the bottom die in a sliding mode respectively. After press fit, the impact rod and the impact head are driven to fully impact the bottom die to generate vibration, the air bag is extruded to exhaust air to the position between the automobile beam support and the bottom die, the viscous force between the automobile beam support and the bottom die is eliminated, the automobile beam support can be easily jacked up by the jacking block, deformation of the automobile beam support cannot be caused, and the quality of the produced automobile beam support is high.

Description

Technical Field

[0001] This utility model relates to the field of stamping technology, and in particular to a continuous stamping die for an automobile body crossbeam bracket. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). They are called cold stamping dies (commonly known as cold stamping dies). Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or plastically deform, thereby obtaining the desired parts.

[0003] In the continuous stamping process of existing automotive crossbeam brackets, since some crossbeam brackets are made of aluminum, they are prone to sticking to the die during stamping. During blanking, an ejector block is usually used to automatically lift the bracket after stamping. However, aluminum is relatively soft, and when the bracket span is large, the ejector block can easily cause local deformation of the bracket when it is lifted. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the prior art. In the continuous stamping of existing automobile crossbeam brackets, since some crossbeam brackets are made of aluminum, they are prone to sticking to the die during stamping. When blanking, an ejector block is usually used to automatically lift the bracket after stamping. However, aluminum is relatively soft, and when the bracket span is large, the ejector block can easily cause local deformation of the bracket. Therefore, a continuous stamping die for automobile body crossbeam brackets is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A continuous stamping die for an automobile body crossbeam bracket includes a base and a bottom die, wherein the bottom die is fixedly connected to the upper end face of the base;

[0007] The bottom mold is equipped with an adjustment mechanism, which includes a sliding rod, a connecting plate, a limiting rod, an impact rod, and an impact head. The sliding rods are divided into two groups of two, with each group containing two sliding rods. The two sliding rods are slidably connected to both ends of the bottom mold. The connecting plate is fixedly connected to the end of the sliding rod away from the bottom mold. The two limiting rods are fixedly connected to the base, and the connecting plate is slidably connected to the limiting rods. The impact rod is fixedly connected to the end of the connecting plate near the bottom mold, and the impact head is fixedly connected to the end of the impact rod away from the connecting plate.

[0008] Preferably, an airbag is fixedly connected between the connecting plate and the bottom mold, and a sealing cavity is fixedly connected to each end of the bottom mold, with multiple air outlets provided on the sealing cavity.

[0009] Preferably, a hydraulic cylinder is fixedly connected to the lower end face of the base, an upper mold is fixedly connected to the output end of the hydraulic cylinder, a trapezoidal block is fixedly connected to the lower end face of the upper mold, a triangular block is fixedly connected to the side wall of the connecting plate, and the trapezoidal block and the triangular block are slidably connected.

[0010] Preferably, an air outlet pipe is fixedly connected between the airbag and the sealed cavity, and an air inlet pipe is fixedly connected to the side wall of the airbag. Both the air outlet pipe and the air inlet pipe are equipped with one-way valves.

[0011] Preferably, the bottom mold has multiple sliding grooves on its side wall, a top block is slidably connected in the sliding groove, and a connecting rod is hinged between the top block and the connecting plate.

[0012] Preferably, a return spring is fixedly connected between the connecting plate and the bottom mold.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Through the cooperation of structures such as airbags, impact heads, and limit rods, the connecting plate is driven to pass over the limit rod to fully store force when the hydraulic cylinder moves down to press. After pressing, the impact rod and impact head drive the bottom mold to fully impact and generate vibration, and squeeze the airbag to discharge gas between the car crossbeam bracket and the bottom mold, eliminating the adhesion between the car crossbeam bracket and the bottom mold, so that the top block can easily lift it without causing deformation, resulting in a high-quality car crossbeam bracket. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the limiting rod structure of a continuous stamping die for an automobile body crossbeam bracket proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the base structure of a continuous stamping die for an automobile body crossbeam bracket proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the sealing cavity structure of a continuous stamping die for an automobile body crossbeam bracket proposed in this utility model.

[0018] Figure 4 for Figure 2 A magnified view of part A in the image;

[0019] Figure 5 for Figure 3 A magnified view of part B in the image.

[0020] In the diagram: 1. Base, 2. Bottom mold, 3. Slide rod, 4. Connecting plate, 5. Limiting rod, 6. Impact rod, 7. Impact head, 8. Airbag, 9. Sealing cavity, 10. Hydraulic cylinder, 11. Upper mold, 12. Trapezoidal block, 13. Triangular block, 14. Air outlet pipe, 15. Air inlet pipe, 16. Top block, 17. Connecting rod, 18. Return spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0023] Reference Figures 1-5 A continuous stamping die for an automobile body crossbeam bracket includes a base 1 and a bottom die 2. The base 1 includes a lower base plate and an upper U-shaped support plate. The bottom die 2 is fixedly connected to the upper surface of the base 1. An adjustment mechanism is provided inside the bottom die 2. The adjustment mechanism includes a slide rod 3, a connecting plate 4, a limiting rod 5, an impact rod 6, and an impact head 7. The slide rods 3 are divided into two groups, with two slide rods in each group. The two slide rods 3 are slidably connected to both ends of the bottom die 2. The connecting plate 4 is fixedly connected to the end of the slide rod 3 away from the bottom die 2. A return spring 18 is fixedly connected between the connecting plate 4 and the bottom die 2. The two limiting rods 5 are fixedly connected to the base 1. The limiting rods 5 have good elasticity and will bend and deform under a certain external force, and will quickly recover after the external force disappears. The connecting plate 4 is slidably connected to the limiting rods 5. The impact rod 6 is fixedly connected to the end of the connecting plate 4 near the bottom die 2. The impact head 7 is fixedly connected to the end of the impact rod 6 away from the connecting plate 4. The impact head 7 has good elasticity and will deform under impact without damaging the bottom die 2.

[0024] An airbag 8 is fixedly connected between the connecting plate 4 and the bottom mold 2. Sealing cavities 9 are fixedly connected to both ends of the bottom mold 2. Multiple air outlets are opened on the sealing cavity 9. The sealing cavity 9 is made of a solid metal box with several narrow exhaust ports hollowed out inside. It has high strength and will not deform during stamping.

[0025] A hydraulic cylinder 10 is fixedly connected to the lower end face of the base 1. An upper mold 11 is fixedly connected to the output end of the hydraulic cylinder 10. A trapezoidal block 12 is fixedly connected to the lower end face of the upper mold 11. There are protrusions on both sides of the upper mold 11. The trapezoidal block 12 is set on the protrusion. A triangular block 13 is fixedly connected to the side wall of the connecting plate 4. The trapezoidal block 12 and the triangular block 13 are slidably connected.

[0026] An air outlet pipe 14 is fixedly connected between the airbag 8 and the sealing cavity 9. An air inlet pipe 15 is fixedly connected to the side wall of the airbag 8. Both the air outlet pipe 14 and the air inlet pipe 15 are equipped with one-way valves. The flow direction of the one-way valve in the air inlet pipe 15 is from the outside to the airbag 8, and the flow direction of the one-way valve in the air outlet pipe 14 is from the airbag 8 to the sealing cavity 9.

[0027] Multiple grooves are provided on the side wall of the bottom mold 2. A top block 16 is slidably connected in the groove. A connecting rod 17 is hinged between the top block 16 and the connecting plate 4. After the impact head 7 is fully deformed, that is, after the vibration has occurred, the gas is fully filled between the car crossbeam bracket and the bottom mold 2. Only then will the top block 16 finally act on the car crossbeam bracket. At this time, there is almost no adhesion between the car crossbeam bracket and the bottom mold 2.

[0028] In this invention, during stamping, the hydraulic cylinder 10 is activated to move the upper die 11 downwards. The upper die 11 then moves the trapezoidal block 12 downwards, which in turn presses against the triangular block 13. The triangular block 13 then moves the connecting plate 4 and the sliding rod 3 towards the limiting rod 5. After the connecting plate 4 contacts the limiting rod 5, it causes the limiting rod 5 to bend and deform. Then, the connecting plate 4 passes over the limiting rod 5, and the connecting plate 4 moves the impact rod 6 and the impact head 7 away from the bottom die 2, stretching the return spring 18 and the airbag 8. The one-way valve in the air inlet pipe 15 opens, and the air outlet pipe 14... When the one-way valve closes, outside air enters the airbag 8 through the intake pipe 15. The connecting plate 4 pulls the connecting rod 17, causing the top block 16 to move downwards. The top block 16 slides into the groove, and the bottom mold 2 and the upper mold 11 close together, stamping the car crossbeam bracket. After stamping, the hydraulic cylinder 10 is activated, causing the upper mold 11 and the trapezoidal block 12 to move upwards. The upward movement of the trapezoidal block 12 eliminates the squeezing force on the triangular block 13. Under the elastic force of the return spring 18, the connecting plate 4 causes the impact rod 6 and the impact head 7 to return to their original positions. The connecting plate 4 contacts the limiting rod 5 and is limited by the limiting rod 5. Unable to reset, as the contact between trapezoidal block 12 and triangular block 13 decreases, the elastic force of the reset spring 18 on the limiting rod 5 increases. The connecting plate 4 causes the limiting rod 5 to bend and deform, then passes over the limiting rod 5. Under the elastic force of the reset spring 18, since the trapezoidal block 12 and triangular block 13 have disengaged, the connecting plate 4 will quickly drive the impact rod 6 and impact head 7 to impact the bottom mold 2, generating high-frequency vibration and compressing the airbag 8. The one-way valve in the air inlet pipe 15 closes, and the one-way valve in the air outlet pipe 14 opens. The gas inside the airbag 8 enters the sealed cavity 9 through the air outlet pipe 14 and is discharged from multiple air outlets in the sealed cavity 9, filling the gap between the car crossbeam bracket and the bottom mold 2. Under the action of vibration and gas, the car crossbeam bracket and the bottom mold 2 are quickly separated. When the impact head 7 is fully compressed, the connecting rod 17 drives the top block 16 to lift the car crossbeam bracket, making it easy to remove. There is almost no adhesion between the car crossbeam bracket and the bottom mold 2, and the top block 16 can easily lift it without causing it to deform, resulting in a high-quality car crossbeam bracket.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A continuous stamping die for a cross member support of a motor vehicle body, comprising a base (1) and a bottom die (2), characterized in that, The bottom die (2) is fixedly connected to the upper end surface of the base (1); The bottom die (2) is provided with an adjusting mechanism, the adjusting mechanism comprises a sliding rod (3), a connecting plate (4), a limiting rod (5), an impact rod (6), an impact head (7), a plurality of sliding rods (3) are divided into two groups, the number of each group is two, the two sliding rods (3) are slidingly connected to the two ends of the bottom die (2), the connecting plate (4) is fixedly connected to one end of the sliding rod (3) away from the bottom die (2), two limiting rods (5) are fixedly connected to the base (1), the connecting plate (4) and the limiting rod (5) are slidingly connected, the impact rod (6) is fixedly connected to one end of the connecting plate (4) close to the bottom die (2), and the impact head (7) is fixedly connected to one end of the impact rod (6) away from the connecting plate (4).

2. The continuous press die for a cross beam support of an automobile body according to claim 1, wherein The connecting plate (4) and the bottom die (2) are fixedly connected with an air bag (8), and the two ends of the bottom die (2) are fixedly connected with a sealed cavity (9), a plurality of gas outlets are formed in the sealed cavity (9).

3. The continuous stamping die for a cross beam support of an automobile body according to claim 1, wherein The lower end surface of the base (1) is fixedly connected with a hydraulic cylinder (10), the output end of the hydraulic cylinder (10) is fixedly connected with an upper die (11), the lower end surface of the upper die (11) is fixedly connected with a trapezoidal block (12), the side wall of the connecting plate (4) is fixedly connected with a triangular block (13), and the trapezoidal block (12) and the triangular block (13) are slidingly connected.

4. The continuous press die for a cross beam support of an automobile body according to claim 2, wherein The air bag (8) is fixedly connected with an air outlet pipe (14) between the sealed cavity (9), the side wall of the air bag (8) is fixedly connected with an air inlet pipe (15), and a one-way valve is arranged in the air outlet pipe (14) and the air inlet pipe (15).

5. The continuous stamping die for an automobile body cross beam support according to claim 1, wherein A plurality of sliding grooves are formed in the side wall of the bottom die (2), a top block (16) is slidingly connected in the sliding groove, and a connecting rod (17) is hinged between the top block (16) and the connecting plate (4).

6. The continuous stamping die for an automobile body cross beam support according to claim 1, wherein The connecting plate (4) and the bottom die (2) are fixedly connected with a reset spring (18).

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