A continuous stamping die for a rear support of a vehicle door

Abstract

The application discloses a continuous stamping die for a rear support of an automobile door and relates to the field of stamping processing.The continuous stamping die comprises a protection shell, a cylinder is fixedly installed on the top of the protection shell, a fixed plate is fixedly installed on the bottom of the cylinder, a buffer mechanism is arranged in the protection shell, the buffer mechanism comprises a piston cylinder, rubber columns are slidably connected to the top and the bottom of the piston cylinder, and two groups of sliding plates are fixedly installed on the outer wall of the piston cylinder.The two groups of rubber columns are sealed with the inner wall of the piston cylinder close to the upper and lower edges, the air volume in the piston cylinder is constant, the rubber columns extrude the air in the piston cylinder to increase the internal air pressure, a downward pressure is provided on the lower rubber column, the upward force provided by the upper die is resisted, rigid contact between the upper die and the lower die is avoided, the acting force between the upper die and the lower die is reduced, and the noise generated during stamping is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stamping processing, in particular to a continuous stamping die for an automobile door rear support. BACKGROUND

[0002] A stamping die is a special process equipment for processing materials into parts in cold stamping processing, which is called a cold stamping die. Stamping is a kind of pressure processing method that uses a die installed on a press to apply pressure to materials to make them separate or plastically deform, thereby obtaining the required parts. The stamped parts on the automobile body are generally divided into covering parts, beam frame parts and general stamping parts, among which the beam frame parts include automobile door rear supports.

[0003] In the prior art, such as the continuous stamping die for an automobile door rear support and the stamping method thereof disclosed in Chinese patent No. CN107377760A, an upper positioning plate, an upper pad foot, an upper die plate, a lower die plate, a lower pad foot and a lower positioning plate are arranged from top to bottom. A feeding plate, a trimming process stamping die, a chamfering process stamping die, a forming process stamping die, a hole-punching process stamping die and a trimming and stripping process stamping die are sequentially arranged between the upper die plate and the lower die plate from left to right.

[0004] However, in the prior art, the upper die and the lower die are in rigid contact with each other. Since the output pressure of the press is relatively large, the acting force between the upper die and the lower die is also relatively large, which may easily cause damage to the upper die and the lower die. In addition, the noise generated during stamping is relatively large, which may cause noise pollution to the operators. In view of the above problems, a continuous stamping die for an automobile door rear support is proposed. SUMMARY

[0005] The present application aims to provide a continuous stamping die for an automobile door rear support to solve the problem that the upper die and the lower die are in rigid contact with each other due to the relatively large output pressure of the press, which may easily cause damage to the upper die and the lower die, and the noise generated during stamping is relatively large, which may cause noise pollution to the operators.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a continuous stamping die for an automobile door rear support, comprising a protective shell, a gas cylinder is fixedly installed at the top of the protective shell, a fixed plate is fixedly installed at the bottom of the gas cylinder, a buffer mechanism is arranged in the protective shell, the buffer mechanism comprises a piston cylinder, rubber columns are slidably connected to the top and the bottom of the piston cylinder, two groups of sliding plates are fixedly installed on the outer wall of the piston cylinder, sliding blocks are slidably connected to the inner walls of the two groups of sliding plates, first rods are rotatably connected to the outer walls of the two groups of sliding blocks, second rods are rotatably connected to one end of the two groups of first rods, damping rods are fixedly installed on one side of the two groups of sliding blocks, extrusion plates are rotatably connected to the bottoms of the two groups of second rods, limit plates are slidably connected to one end of the two groups of sliding plates, an upper die is fixedly installed at the bottom of one group of rubber columns, two groups of fixed rings are fixedly installed at the top of the protective shell, and two groups of fixed columns are fixedly installed at the top of the fixed plate.

[0007] Preferably, a clamping mechanism is arranged in the protective shell, the clamping mechanism comprises two groups of special-shaped plates, sliding groove plates are slidably connected to one side of the two groups of special-shaped plates, and round rods are penetratingly arranged on the outer walls of the two sides of the protective shell.

[0008] Preferably, a first spring is arranged on the outer wall of each of the two groups of round rods, a clamping plate is fixedly installed at one end of each of the two groups of round rods, and one side of each of the two groups of clamping plates is in contact with one side of each of the two groups of special-shaped plates.

[0009] Preferably, a fixed seat is slidably connected to the bottom of each of the two groups of clamping plates, and the bottom of each of the two groups of fixed seats is fixedly connected with the inner wall of the protective shell.

[0010] Preferably, the top of each of the two groups of special-shaped plates is fixedly connected with the bottom of the fixed plate, and one side of each of the two groups of sliding groove plates is fixedly connected with the inner wall of each side of the protective shell.

[0011] Preferably, one end of each of the two groups of first springs is fixedly connected with one end of each of the two groups of round rods, and the other end of each of the two groups of first springs is fixedly connected with the outer wall of each side of the protective shell.

[0012] Preferably, a die changing mechanism is arranged in the protective shell, the die changing mechanism comprises a fixed block, a third rod is penetratingly arranged in the fixed block, a fourth rod is rotatably connected to one end of the third rod, rubber rollers are rotatably connected to one end of the third rod and the fourth rod, second springs are fixedly installed on the outer walls of the third rod and the fourth rod, and a lower die is slidably connected to the top of the fixed block.

[0013] Preferably, the bottom of the fixed block is fixedly connected with the inner wall of the protective shell, one end of the fourth rod is arranged in the interior of the fixed block, the bottom of the two groups of second springs is fixedly connected with the inner wall of the protective shell, and the outer walls of the two groups of rubber rollers are in contact with the outer walls of the two sides of the lower mold respectively.

[0014] Preferably, the top of the fixed plate is in contact with the inner wall of the protective shell, the top of the group of rubber columns is fixedly connected with the bottom of the fixed plate, and the tops of the two groups of fixed columns are arranged in the top of the fixed ring.

[0015] Preferably, the top of the two groups of first rods is rotatably connected with the bottom of the fixed plate, the other end of the two groups of damping rods is fixedly connected with the inner wall of the sliding plate, and the top of the two groups of limiting plates is fixedly connected with the bottom of the fixed plate.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1、In the present application, by arranging two groups of rubber columns and a piston cylinder, the outer walls of the two groups of rubber columns are sealed with the inner walls near the upper and lower edges of the piston cylinder, so that the air volume in the piston cylinder is constant. When the upper mold punches the material, the upper mold drives the lower rubber column to move upwards, thereby extruding the air in the piston cylinder. Since the air pressure in the piston cylinder increases, a downward pressure is applied to the lower rubber column, which counteracts the upward force provided by the upper mold, thereby avoiding rigid contact between the upper and lower molds, reducing the force between the upper and lower molds, and reducing the noise generated during punching.

[0018] 2、In the present application, by arranging two groups of special-shaped plates and two groups of clamping plates, the two groups of clamping plates clamp the outer walls of the two sides of the support material, facilitating subsequent punching, avoiding poor punching quality caused by material displacement, and by arranging two groups of first springs, when the two groups of special-shaped plates move upwards, they drive the two groups of round rods to move to both ends, thereby playing a resetting role on the two groups of clamping plates.

[0019] 3、In the present application, by arranging a third rod, a fourth rod, two groups of rubber rollers and two groups of second springs, the lower mold is continuously pushed, so that the outer walls of the two sides of the lower mold extrude the outer walls of the two groups of rubber rollers, thereby the two groups of rubber rollers move to both ends while rolling, thereby driving the third rod and the fourth rod to rotate, making the included angle between the third rod and the fourth rod larger, and extruding the two groups of second springs, thereby fixing the lower mold, facilitating installation and replacement of the lower mold. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic view of a continuous stamping die for a rear support of an automobile door according to the present application;

[0021] Figure 2 It is a three-dimensional structure sectional view of a continuous stamping die for a rear support of an automobile door according to the present application;

[0022] Figure 3 It is a three-dimensional structure sectional view of a buffer mechanism of a continuous stamping die for a rear support of an automobile door according to the present application;

[0023] Figure 4 It is a three-dimensional structure sectional view of a buffer mechanism of a continuous stamping die for a rear support of an automobile door according to the present application; Figure 1 It is an enlarged view of a three-dimensional structure of a middle A part of a continuous stamping die for a rear support of an automobile door according to the present application;

[0024] Figure 5 It is an exploded view of a three-dimensional structure of a buffer mechanism of a continuous stamping die for a rear support of an automobile door according to the present application;

[0025] Figure 6 It is a sectional view of a structure of a clamping mechanism of a continuous stamping die for a rear support of an automobile door according to the present application;

[0026] Figure 7 It is a three-dimensional structure sectional view of a die changing mechanism of a continuous stamping die for a rear support of an automobile door according to the present application.

[0027] In the figure: 1, protective shell; 2, air cylinder; 3, fixed plate; 4, buffer mechanism; 41, piston cylinder; 42, rubber column; 43, sliding plate; 44, sliding block; 45, No. 1 rod; 46, No. 2 rod; 47, damping rod; 48, extrusion plate; 49, limiting plate; 410, upper die; 5, clamping mechanism; 51, special-shaped plate; 52, sliding groove plate; 53, round rod; 54, No. 1 spring; 55, clamping plate; 56, fixed seat; 6, die changing mechanism; 61, fixed block; 62, No. 3 rod; 63, No. 4 rod; 64, rubber roller; 65, No. 2 spring; 66, lower die; 7, fixed ring; 8, fixed column. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Embodiment one

[0029] Reference Figures 1-5The utility model discloses a kind of automobile door rear support continuous stamping die, including protective shell 1, the top of protective shell 1 is fixedly installed with cylinder 2, the bottom of cylinder 2 is fixedly installed with fixed plate 3, the inside of protective shell 1 is provided with buffer mechanism 4, buffer mechanism 4 includes piston cylinder 41, the top and bottom of piston cylinder 41 are slidably connected with rubber column 42, the outer wall of piston cylinder 41 is fixedly installed with two groups of sliding plates 43, the inner wall of two groups of sliding plates 43 is slidably connected with sliding block 44, the outer wall of two groups of sliding block 44 is rotatably connected with one No.

[0030] In the embodiment, the bracket material is placed on the top of the lower die 66, and after the two clamping plates 55 clamp the material on both sides, first start the cylinder 2, which drives the fixed plate 3 to move downward, and then the fixed plate 3 drives the two fixed columns 8 to move downward, the two fixed columns 8 slide inside the two fixed rings 7, while the fixed plate 3 drives the one rubber column 42 to move downward, the rubber column 42 drives the piston cylinder 41 to move downward, and then the piston cylinder 41 drives the other rubber column 42 to move downward, further, the lower rubber column 42 drives the upper die 410 to move downward, at the same time, the piston cylinder 41 drives the two second bars 46 to move downward until the bottom of the two extrusion plates 48 contacts the top of the bracket material, at this time the fixed plate 3 still moves downward until the bottom of the upper die 410 contacts the top of the material, and the lower die 66 stamps the material, by setting the two rubber columns 42 and the piston cylinder 41, the outer wall of the two rubber columns 42 is sealed with the inner wall of the piston cylinder 41 near the upper and lower edges, and then the air inside the piston cylinder 41 is certain, when the upper die 410 stamps the material, the upper die 410 drives the lower rubber column 42 to move upward, and then extrudes the air inside the piston cylinder 41, due to the increase of air pressure inside the piston cylinder 41, a downward pressure is generated on the lower rubber column 42, which counteracts the upward force provided by the upper die 410, to avoid rigid contact between the upper die 410 and the lower die 66, reduce the force between the upper die 410 and the lower die 66, and reduce the noise generated during stamping;

[0031] When the upper die 410 cooperates with the lower die 66 to stamp the material, because the distance between the bottom of the fixed plate 3 and the top of the material is reduced, both groups of the first rods 45 and the second rods 46 rotate, one side of both groups of the sliding plates 43 slides on one side of the limiting plates 49 respectively, and drives both groups of the sliding blocks 44 to slide to the both ends positions, and then both groups of the sliding blocks 44 slide in both groups of the sliding plates 43, so that both groups of the damping rods 47 contract, through setting both groups of the damping rods 47, the movement of both groups of the sliding blocks 44 is inhibited, and then the rotation of both groups of the first rods 45 and the second rods 46 is inhibited, and then the buffering effect when the upper die 410 stamps is achieved, which avoids the damage of the die caused by the excessive force between the upper die 410 and the lower die 66, and reduces the noise generated during stamping. Embodiment Two

[0032] Figure 1 、 Figure 2 and Figure 6 As shown in the figure, the inside of the protective shell 1 is provided with a clamping mechanism 5, the clamping mechanism 5 includes two groups of special-shaped plates 51, one side of the two groups of special-shaped plates 51 is slidably connected with a sliding groove plate 52, the both sides of the outer wall of the protective shell 1 are provided with a round rod 53, the outer wall of the two groups of round rods 53 is provided with a first spring 54, one end of the two groups of round rods 53 is fixedly installed with a clamping plate 55, one side of the two groups of clamping plates 55 is respectively in contact with one side of the two groups of special-shaped plates 51, the bottom of the two groups of clamping plates 55 is slidably connected with a fixing seat 56, the bottom of the two groups of fixing seats 56 is fixedly connected with the inner wall of the protective shell 1, the top of the two groups of special-shaped plates 51 is fixedly connected with the bottom of the fixed plate 3, one side of the two groups of sliding groove plates 52 is respectively fixedly connected with the both sides of the inner wall of the protective shell 1, one end of the two groups of first springs 54 is respectively fixedly connected with one end of the two groups of round rods 53, the other end of the two groups of first springs 54 is respectively fixedly connected with the both sides of the outer wall of the protective shell 1.

[0033] In this embodiment, first, the bracket material is placed on the top of the lower die 66, and then the cylinder 2 is started, and then the cylinder 2 drives the fixed plate 3 to move downward, and then the fixed plate 3 drives the two groups of special-shaped plates 51 to move downward, one side of the two groups of special-shaped plates 51 slides downward on one side of the two groups of sliding groove plates 52, and at the same time, the side walls of the two groups of special-shaped plates 51 respectively press the two groups of clamping plates 55, the two groups of clamping plates 55 move in the middle of the top of the two groups of fixing seats 56, so that the two groups of clamping plates 55 drive the two groups of round rods 53 to move to the middle, and thus the two groups of first springs 54 are compressed, through setting the two groups of special-shaped plates 51 and the two groups of clamping plates 55, the two groups of clamping plates 55 clamp the both sides of the outer wall of the bracket material, which is convenient for subsequent stamping, avoids poor stamping quality caused by material displacement, and through setting the two groups of first springs 54, when the two groups of special-shaped plates 51 move upward, the two groups of round rods 53 move to both ends, and thus the two groups of clamping plates 55 are reset. Embodiment Three

[0034] According to Figure 1 、 Figure 2 and Figure 7 , the inside of the protective shell 1 is provided with a mold changing mechanism 6, the inside of the fixed block 61 is provided with a No. 3 rod 62, one end of the No. 3 rod 62 is rotatably connected with a No. 4 rod 63, one end of the No. 3 rod 62 and the No. 4 rod 63 are rotatably connected with rubber rollers 64, the outer walls of the No. 3 rod 62 and the No. 4 rod 63 are fixedly installed with No. 2 springs 65, the top of the fixed block 61 is slidably connected with a lower mold 66, the bottom of the fixed block 61 is fixedly connected with the inner wall of the protective shell 1, one end of the No. 4 rod 63 is provided in the inside of the fixed block 61, the bottoms of the two groups of No. 2 springs 65 are fixedly connected with the inner wall of the protective shell 1, and the outer walls of the two groups of rubber rollers 64 are in contact with the two side outer walls of the lower mold 66.

[0035] In this embodiment, when it is necessary to replace the lower mold 66, the lower mold 66 is longitudinally pushed to be removed, then a new lower mold 66 is pushed from one side of the fixed block 61, then the two side outer walls of the lower mold 66 are in contact with the two groups of rubber rollers 64, by providing the No. 3 rod 62, the No. 4 rod 63, the two groups of rubber rollers 64 and the two groups of No. 2 springs 65, the lower mold 66 is continuously pushed, so that the two side outer walls of the lower mold 66 are extruded against the outer walls of the two groups of rubber rollers 64, then the two groups of rubber rollers 64 move to both ends while rolling, then the No. 3 rod 62 and the No. 4 rod 63 are driven to rotate, so that the included angle between the No. 3 rod 62 and the No. 4 rod 63 becomes larger, and the two groups of No. 2 springs 65 are extruded, so as to fix the lower mold 66, facilitating the installation and replacement of the lower mold 66.

[0036] The working principle of the device is as follows: when it is necessary to replace the lower mold 66, the lower mold 66 is longitudinally pushed to be removed, then a new lower mold 66 is pushed from one side of the fixed block 61, then the two side outer walls of the lower mold 66 are in contact with the two groups of rubber rollers 64, the lower mold 66 is continuously pushed, so that the two side outer walls of the lower mold 66 are extruded against the outer walls of the two groups of rubber rollers 64, then the two groups of rubber rollers 64 move to both ends while rolling, then the No. 3 rod 62 and the No. 4 rod 63 are driven to rotate, so that the included angle between the No. 3 rod 62 and the No. 4 rod 63 becomes larger, and the two groups of No. 2 springs 65 are extruded, so as to fix the lower mold 66, and the bracket material is placed on the top of the lower mold 66.

[0037] First start the cylinder 2, and then the cylinder 2 drives the fixed plate 3 to move down, and then the fixed plate 3 drives the two groups of special-shaped plates 51 to move down, one side of the two groups of special-shaped plates 51 slides down at one side of the two groups of sliding groove plates 52, while the side walls of the two groups of special-shaped plates 51 respectively extrude the two groups of clamping plates 55, the two groups of clamping plates 55 move in the middle of the top of the two groups of fixed seats 56, so that the two groups of clamping plates 55 drive the two groups of round rods 53 to move to the middle, so the two groups of first springs 54 are compressed, the two groups of clamping plates 55 clamp the two sides of the outer wall of the support material, and the fixed plate 3 drives the two groups of fixed columns 8 to move down, the two groups of fixed columns 8 slide in the two groups of fixed rings 7;

[0038] At the same time, the fixed plate 3 drives a group of rubber columns 42 to move down, the rubber column 42 drives the piston cylinder 41 to move down, and then the piston cylinder 41 drives the other group of rubber columns 42 to move down, further, the lower rubber column 42 drives the upper die 410 to move down, at the same time, the piston cylinder 41 drives the two groups of second rods 46 to move down, until the bottom of the two groups of extrusion plates 48 contacts the top of the support material, at this time the fixed plate 3 still moves down, until the bottom of the upper die 410 contacts the top of the material, because the outer wall of the two groups of rubber columns 42 is sealed with the inner wall of the piston cylinder 41 close to the upper and lower edges, so that the air in the piston cylinder 41 is constant, when the upper die 410 stamps the material, the upper die 410 drives the lower rubber column 42 to move up, and then extrudes the air in the piston cylinder 41, because the air pressure in the piston cylinder 41 increases, so as to resist the upward force provided by the upper die 410;

[0039] At the same time, because the distance between the bottom of the fixed plate 3 and the top of the material decreases, the two groups of first rods 45 and the two groups of second rods 46 all rotate, one side of the two groups of sliding plates 43 respectively slides in one side of the limiting plates 49, and drives the two groups of sliding blocks 44 to slide to the both ends positions, and then the two groups of sliding blocks 44 slide in the two groups of sliding plates 43, so that the two groups of damping rods 47 contract, the upper die 410 cooperates with the lower die 66 to stamp the material.

[0040] Although the present application has been disclosed with reference to the preceding embodiments, those skilled in the art will be able to make modifications to the technical solutions recorded in the preceding embodiments, or make equivalent replacements to some of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A continuous stamping die for a rear support of a door of a vehicle, comprising a protective shell (1), characterized in that: A cylinder (2) is fixedly installed on the top of the protective shell (1), and a fixing plate (3) is fixedly installed on the bottom of the cylinder (2). A buffer mechanism (4) is provided inside the protective shell (1). The buffer mechanism (4) includes a piston cylinder (41). A rubber column (42) is slidably connected to the top and bottom of the piston cylinder (41). Two sets of sliding plates (43) are fixedly installed on the outer wall of the piston cylinder (41). Sliding blocks (44) are slidably connected to the inner walls of the two sets of sliding plates (43). A rod is rotatably connected to the outer walls of the two sets of sliding blocks (44). 45), one end of each of the two sets of first rods (45) is rotatably connected to a second rod (46), one side of each of the two sets of sliding blocks (44) is fixedly installed with a damping rod (47), the bottom of each of the two sets of second rods (46) is rotatably connected with a compression plate (48), one end of each of the two sets of sliding plates (43) is slidably connected with a limit plate (49), the bottom of one set of rubber columns (42) is fixedly installed with an upper mold (410), the top of the protective shell (1) is fixedly installed with two sets of fixing rings (7), and the top of the fixing plate (3) is fixedly installed with two sets of fixing columns (8). The protective shell (1) is provided with a clamping mechanism (5) inside. The clamping mechanism (5) includes two sets of irregular plates (51). Each set of irregular plates (51) is slidably connected to a sliding groove plate (52) on one side. Both outer walls of the protective shell (1) are provided with round rods (53). The outer walls of both sets of round rods (53) are provided with a No. 1 spring (54), and one end of both sets of round rods (53) is fixedly installed with a clamping plate (55). One side of the two sets of clamping plates (55) respectively contacts one side of the two sets of irregular plates (51). Both sets of clamping plates (55) are slidably connected to a fixing seat (56) at their bottoms, and the bottoms of both sets of fixing seats (56) are fixedly connected to the inner wall of the protective shell (1). The top of the irregular plate (51) of each group is fixedly connected to the bottom of the fixed plate (3), and one side of the two groups of sliding plates (52) is fixedly connected to the inner walls of the two sides of the protective shell (1). One end of each of the two sets of No. 1 springs (54) is fixedly connected to one end of each of the two sets of round rods (53), and the other end of each of the two sets of No. 1 springs (54) is fixedly connected to the outer walls of both sides of the protective shell (1). The protective shell (1) is provided with a mold changing mechanism (6). The mold changing mechanism (6) includes a fixed block (61). A third rod (62) is provided through the interior of the fixed block (61). A fourth rod (63) is rotatably connected to one end of the third rod (62). A rubber roller (64) is rotatably connected to one end of both the third rod (62) and the fourth rod (63). A second spring (65) is fixedly installed on the outer wall of both the third rod (62) and the fourth rod (63). A lower mold (66) is slidably connected to the top of the fixed block (61). The bottom of the fixed block (61) is fixedly connected with the inner wall of the protective shell (1), one end of the No. 4 rod (63) penetrates the inside of the fixed block (61), the bottoms of the two groups of No. 2 springs (65) are fixedly connected with the inner wall of the protective shell (1), and the outer walls of the two groups of rubber rollers (64) are in contact with the outer walls of the two sides of the lower mold (66) respectively.

2. The continuous stamping die for a rear support of a door of an automobile according to claim 1, characterized in that: The top of the fixed plate (3) is in contact with the inner wall of the protective shell (1), the top of one group of rubber columns (42) is fixedly connected with the bottom of the fixed plate (3), and the tops of the two groups of fixed columns (8) penetrate the top of the fixed ring (7) respectively.

3. The continuous stamping die for an automobile door rear support bracket according to claim 1, characterized in that: The tops of the two groups of No. 1 rods (45) are rotatably connected with the bottom of the fixed plate (3), the other ends of the two groups of damping rods (47) are fixedly connected with the inner wall of the sliding plate (43) respectively, and the tops of the two groups of limiting plates (49) are fixedly connected with the bottom of the fixed plate (3).

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