Split type flaring die for automobile corrugated pipe

Abstract

The utility model relates to the technical field of corrugated pipe flaring, and provides an automobile corrugated pipe split type flaring die which comprises a main machine shell, a stabilizing sleeve is fixedly embedded in one side of the main machine shell, a threaded rod is rotationally connected into the stabilizing sleeve, one end of the threaded rod is fixedly connected with a rocker, and the other end of the threaded rod is fixedly connected with a nut. The side, away from the rocker, of the threaded rod is in threaded connection with an internal threaded block, the top of the internal threaded block is fixedly connected with a connecting plate, the top of the connecting plate is fixedly connected with a limiting sleeve, the side, away from the rocker, of the inner surface of the main case is fixedly connected with a limiting rod, and the outer surface of the limiting rod is movably embedded in the inner surface of the limiting sleeve. A stress plate is arranged at the end, away from the rocker, of the internal thread block. The corrugated pipe can flexibly adapt to various specifications, a mold does not need to be independently manufactured for each depth, the production cost and the inventory pressure are reduced, the matching performance of the corrugated pipe and other components can be optimized, and therefore the sealing effect, the connecting strength and the stability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows flaring, in particular to a split flaring die for automobile bellows. Background Art

[0002] The split flaring die for automobile bellows mainly has the following important functions: it can accurately flare the port of the automobile bellows to ensure that the size, shape and angle of the flare meet strict design requirements, thus ensuring the accuracy and sealing performance of the connection between the bellows and other components. Through the flaring treatment, the contact area of the bellows port can be increased, thereby improving the stability and reliability of the connection with other components. In summary, the split flaring die for automobile bellows plays a crucial role in the production of automobile parts and has great significance for ensuring the performance and safety of automobiles.

[0003] However, in the prior art, for example, Chinese Publication No.: CN219483948U, "A Flaring Wave Crest Shaping Die for Bellows", this utility model discloses a flaring wave crest shaping die for bellows, which includes two modules that are butt-jointed, a die closing device for closing the two modules, a positioning device provided on the two modules, and a control device electrically connected to the die closing device and the positioning device. A cavity for flaring and shaping the bellows is provided on one side of the two modules that are close to each other. The positioning device is used to move the two modules along the axis of the bellows after closing the die so that the wave trough of the bellows is aligned with the shaping convex surface in the cavity. In this utility model, the module can move and be positioned along the axis of the bellows, so that the forming depression in the module cavity is accurately aligned with the wave crest of the bellows flare, avoiding the deformation of the wave crest of the bellows flare, which may lead to a decline in mechanical properties and poor product appearance quality.

[0004] However, this device does not have a depth adjustable structure and cannot flexibly adapt to these diverse specifications. It is necessary to manufacture a separate die for each depth, which increases production costs and inventory pressure, and cannot optimize the cooperation performance between the bellows and other components, thereby improving the sealing effect, connection strength and stability. The device does not have a flaring diameter adjustable structure, and the connection diameter of the bellows may change. The fixed diameter cannot quickly respond to this change, resulting in production delays and increased costs, and cannot test and optimize the product quality by adjusting the flaring diameter. Summary of the Utility Model

[0005] The object of the present utility model is to solve the problems existing in the prior art, that is, it cannot flexibly adapt to these diverse specifications, and it is necessary to manufacture molds separately for each depth, which increases the production cost and inventory pressure. It cannot optimize the cooperation performance between the corrugated pipe and other components, thereby improving the sealing effect, connection strength and stability. The connection diameter of the corrugated pipe may change, and the fixed diameter cannot respond quickly to this change, resulting in production delays and increased costs. It cannot test and optimize the product quality by adjusting the flaring diameter.

[0006] To achieve the above object, the present utility model adopts the following technical solution: A split flaring mold for an automotive corrugated pipe, comprising a main housing. A stabilizing sleeve is fixedly embedded on one side of the main housing. A threaded rod is rotatably connected inside the stabilizing sleeve. One end of the threaded rod is fixedly connected to a rocker. The threaded rod is threadedly connected to an internally threaded block on the side away from the rocker. The top of the internally threaded block is fixedly connected to a connecting plate. The top of the connecting plate is fixedly connected to a limiting sleeve. A limiting rod is fixedly connected to the inner surface of the main housing on the side away from the rocker. The outer surface of the limiting rod is movably embedded in the inner surface of the limiting sleeve. A force-bearing plate is arranged at the end of the internally threaded block away from the rocker. One side of the force-bearing plate away from the internally threaded block is fixedly connected to an extension cylinder. The outer surface of the extension cylinder is movably embedded on one side of the main housing. The limiting sleeve can only move along the axis direction of the limiting rod. The limiting sleeve is connected to the outside of the internally threaded block through the connecting plate. Therefore, rotating the thread will drive the internally threaded block to move along the axis direction of the limiting rod.

[0007] As a preferred embodiment, a spring is movably sleeved on the outer surface of the extension cylinder. One end of the spring away from the force-bearing plate is fixedly connected to the inner surface of the main housing. One end of the spring away from the main housing is fixedly connected to one side of the force-bearing plate. When the internally threaded block moves, it will push the force-bearing plate and the extension cylinder and compress the internal spring.

[0008] As a preferred embodiment, one end of the extension cylinder away from the force-bearing plate is fixedly connected to a main pipe. One end of the main pipe away from the extension cylinder is fixedly connected to an extrusion head. When the internally threaded block moves, it will push the force-bearing plate and the extension cylinder.

[0009] As a preferred embodiment, a left-right threaded rod is rotatably connected to one side of the extrusion head close to the main pipe. The outer surface of the left-right threaded rod is rotatably connected to one side of the main pipe and extends out at one end. The thread rotation directions on both sides of the left-right threaded rod are opposite. Because the thread rotation directions on both sides of the left-right threaded rod are opposite, the two internally threaded sleeves move in opposite directions.

[0010] As a preferred embodiment, two L-shaped plates are fixedly connected to one side of the main pipe. A motor is fixedly connected to the inner sides of the two L-shaped plates. The output end of the motor is fixedly connected to one end of the extending positive and negative lead screw. When the motor is powered on, it will drive the positive and negative lead screw to rotate.

[0011] As a preferred embodiment, two internal thread sleeves are threadedly connected to the outer surface of the positive and negative lead screw. First shaft blocks are fixedly connected to both sides of the internal thread sleeve. Rotating the thread will drive the two internal thread sleeves.

[0012] As a preferred embodiment, a connecting rod is rotatably connected to the inside of the first shaft block. The two connecting rods are rotatably connected to a second shaft block at the ends away from the first shaft block. When the two internal thread sleeves approach each other, one end of the connecting rod will be driven by the first shaft block.

[0013] As a preferred embodiment, an outer support rod is fixedly connected to the side of the second shaft block away from the connecting rod. The outer surfaces of the two outer support rods are movably embedded on the outside of the main pipe. An outer support plate is fixedly connected to the end of the outer support rod away from the second shaft block. The other end of the connecting rod will push the outer support rod through the second shaft block and cause the outer support plate to expand inside the bellows, thereby expanding the diameter of the bellows.

[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0015] 1. In the present utility model, the device is provided with a depth adjustable structure, which can flexibly adapt to these diverse specifications, eliminating the need to manufacture molds separately for each depth, reducing production costs and inventory pressure, and optimizing the cooperation performance between the bellows and other components, thereby improving the sealing effect, connection strength and stability.

[0016] 2. In the present utility model, the device is provided with a flaring diameter adjustable structure. The connection diameter of the bellows may change. The adjustable diameter can quickly respond to this change, avoiding production delays and cost increases, and can test and optimize the product quality by adjusting the flaring diameter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a three-dimensional structural diagram of a split flaring mold for an automotive bellows provided by the present utility model;

[0018] Figure 2 FIG. is a cross-sectional structural diagram of a split flaring mold for an automotive bellows provided by the present utility model;

[0019] Figure 3 FIG. is a cross-sectional structural diagram of an extension cylinder in a split flaring mold for an automotive bellows provided by the present utility model;

[0020] Figure 4Schematic cross-sectional structure diagram of the main pipe in a split flaring die for automotive bellows provided by the present utility model;

[0021] Figure 5 For a split flaring die for automotive bellows provided by the present utility model Figure 2 Enlarged structure diagram of A therein

[0022] Legend description:

[0023] 1. Main housing; 2. Stabilizing sleeve; 3. Threaded rod; 4. Rocker; 5. Internal thread block; 6. Connecting plate; 7. Limiting sleeve; 8. Limiting rod; 9. Force-bearing plate; 10. Outer extension cylinder; 11. Spring; 12. Main pipe; 13. Extrusion head; 14. Positive and negative lead screw; 15. L-shaped plate; 16. Motor; 17. Internal thread sleeve; 18. First shaft block; 19. Connecting rod; 20. Second shaft block; 21. Outer support rod; 22. Outer support plate. Specific implementation manner

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1 to 5 , the present utility model provides a technical solution: a split flaring die for automotive bellows, including a main housing 1, a stabilizing sleeve 2 is fixedly embedded on one side of the main housing 1, a threaded rod 3 is rotatably connected inside the stabilizing sleeve 2, one end of the threaded rod 3 is fixedly connected to a rocker 4, the side of the threaded rod 3 away from the rocker 4 is threadedly connected to an internal thread block 5, the top of the internal thread block 5 is fixedly connected to a connecting plate 6, the top of the connecting plate 6 is fixedly connected to a limiting sleeve 7, a limiting rod 8 is fixedly connected to the inner surface of the main housing 1 away from the rocker 4, and the outer surface of the limiting rod 8 is movably embedded in the inner surface of the limiting sleeve 7. A force-bearing plate 9 is provided at the end of the internal thread block 5 away from the rocker 4, and one side of the force-bearing plate 9 away from the internal thread block 5 is fixedly connected to an outer extension cylinder 10, and the outer surface of the outer extension cylinder 10 is movably embedded on one side of the main housing 1. The threaded rod 3 is rotated inside the main housing 1 and the stabilizing sleeve 2 through the rocker 4, and the rotating thread drives the internal thread block 5.

[0026] Such as Figures 1 to 5As shown, a spring 11 is movably sleeved on the outer surface of the extension tube 10. One end of the spring 11 away from the force-bearing plate 9 is fixedly connected to the inner surface of the main housing 1, and one end of the spring 11 away from the main housing 1 is fixedly connected to one side of the force-bearing plate 9. The spring 11 stores elastic potential energy. When the internal thread block 5 moves in the reverse direction, the force-bearing plate 9 will always be in contact with the internal thread block 5.

[0027] As Figures 1 to 5 shown, one end of the extension tube 10 away from the force-bearing plate 9 is fixedly connected to a main tube 12. One end of the main tube 12 away from the extension tube 10 is fixedly connected to an extrusion head 13. When the internal thread block 5 moves, it will push the force-bearing plate 9 and the extension tube 10.

[0028] As Figures 1 to 5 shown, one side of the extrusion head 13 close to the main tube 12 is rotatably connected to a left-right screw rod 14. The outer surface of the left-right screw rod 14 is rotatably connected to one side of the main tube 12 and extends out one end. The thread rotation directions on both sides of the left-right screw rod 14 are opposite. Because the thread rotation directions on both sides of the left-right screw rod 14 are opposite, the two internal thread sleeves 17 move in opposite directions.

[0029] As Figures 1 to 5 shown, two L-shaped plates 15 are fixedly connected to one side of the main tube 12. A motor 16 is fixedly connected to the inner sides of the two L-shaped plates 15. The output end of the motor 16 is fixedly connected to the extended end of the left-right screw rod 14. The motor 16 is fixed to one side of the main tube 12 through the L-shaped plates 15.

[0030] As Figures 1 to 5 shown, two internal thread sleeves 17 are threadedly connected to the outer surface of the left-right screw rod 14. First shaft blocks 18 are fixedly connected to both sides of the internal thread sleeves 17. Rotating the thread will drive the two internal thread sleeves 17.

[0031] As Figures 1 to 5 shown, a connecting rod 19 is rotatably connected inside the first shaft block 18. One ends of the two connecting rods 19 away from the first shaft block 18 are rotatably connected to a second shaft block 20. When the two internal thread sleeves 17 approach each other, one end of the connecting rod 19 will be driven by the first shaft block 18.

[0032] As Figures 1 to 5 shown, an outer support rod 21 is fixedly connected to one side of the second shaft block 20 away from the connecting rod 19. The outer surfaces of the two outer support rods 21 are movably embedded on the outside of the main tube 12. One end of the outer support rod 21 away from the second shaft block 20 is fixedly connected to an outer support plate 22. The other end of the connecting rod 19 will push the outer support rod 21 through the second shaft block 20, and cause the outer support plate 22 to expand inside the corrugated pipe, so as to expand the diameter of the corrugated pipe.

[0033] Working principle: First, the corrugated pipe is pre-aligned and fixed on the outside of the extrusion head 13. Then, the rocker 4 is used to rotate the threaded rod 3 inside the main housing 1 and the stabilizing sleeve 2. The rotating thread drives the internal threaded block 5. The limiting sleeve 7 can only move along the axis direction of the limiting rod 8. The limiting sleeve 7 is connected to the outside of the internal threaded block 5 through the connecting plate 6. Therefore, the rotating thread drives the internal threaded block 5 to move along the axis direction of the limiting rod 8. When the internal threaded block 5 moves, it will push the force-bearing plate 9 and the extension cylinder 10 and compress the internal spring 11. The spring 11 stores elastic potential energy. When the internal threaded block 5 moves in the reverse direction, the force-bearing plate 9 will always contact the internal threaded block 5. When the extrusion head 13 and the main pipe 12 move along with the extension cylinder 10, they will squeeze into the inside of the corrugated pipe and reach the predetermined depth. Then, the external power supply of the motor 16 is started. The model of the motor 16 is: DOY106, and the rated power is: 750W. The motor 16 is fixed on one side of the main pipe 12 through the L-shaped plate 15. After the motor 16 is powered on, it will drive the positive and negative lead screw 14 to rotate. The rotating thread drives the two internal threaded sleeves 17. Because the thread rotation directions on both sides of the positive and negative lead screw 14 are opposite, the two internal threaded sleeves 17 move in opposite directions. When the two internal threaded sleeves 17 approach each other, one end of the connecting rod 19 will be driven by the first shaft block 18. The other end of the connecting rod 19 will push the outer support rod 21 through the second shaft block 20, and cause the outer support plate 22 to expand inside the corrugated pipe, so as to expand the diameter of the corrugated pipe.

[0034] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A split-type expansion die for automobile bellows, comprising a main housing (1), characterized in that: A stabilizing sleeve (2) is fixedly embedded on one side of the main housing (1), a threaded rod (3) is rotatably connected inside the stabilizing sleeve (2), one end of the threaded rod (3) is fixedly connected to a rocking arm (4), a side of the threaded rod (3) away from the rocking arm (4) is threadedly connected to an internal thread block (5), a top of the internal thread block (5) is fixedly connected to a connecting plate (6), a top of the connecting plate (6) is fixedly connected to a limiting sleeve (7), a side of the inner surface of the main housing (1) away from the rocking arm (4) is fixedly connected to a limiting rod (8), an outer surface of the limiting rod (8) is movably embedded in the inner surface of the limiting sleeve (7), a force plate (9) is provided on one end of the internal thread block (5) away from the rocking arm (4), a side of the force plate (9) away from the internal thread block (5) is fixedly connected to an external extension tube (10), an outer surface of the external extension tube (10) is movably embedded in one side of the main housing (1).

2. The split-type expanding die for automobile bellows according to claim 1, characterized in that: A spring (11) is movably sleeved on the outer surface of the protruding tube (10); one end of the spring (11) away from the force-bearing plate (9) is fixedly connected to the inner surface of the main housing (1); and one end of the spring (11) away from the main housing (1) is fixedly connected to one side of the force-bearing plate (9).

3. The split-type expanding die for automobile bellows according to claim 2, characterized in that: One end of the protruding tube (10) away from the force-bearing plate (9) is fixedly connected to a main tube (12), and one end of the main tube (12) away from the protruding tube (10) is fixedly connected to an extrusion head (13).

4. The split-type expanding die for automobile bellows according to claim 3, characterized in that: A side of the extrusion head (13) close to the main pipe (12) is rotatably connected to a forward and reverse screw rod (14); an outer surface of the forward and reverse screw rod (14) is rotatably connected to one side of the main pipe (12) and extends out at one end; and the threads on both sides of the forward and reverse screw rod (14) rotate in opposite directions.

5. The split-type expanding die for automobile bellows according to claim 4, characterized in that: Two L-shaped plates (15) are fixedly connected to one side of the main pipe (12), a motor (16) is fixedly connected to the inner sides of the two L-shaped plates (15), and an output end of the motor (16) is fixedly connected to one end extending from the forward and reverse screw rods (14).

6. The split-type expanding die for automobile bellows according to claim 5, characterized in that: The outer surface of the forward and reverse screw rods (14) is threadedly connected to two internal thread sleeves (17), and both sides of the internal thread sleeves (17) are fixedly connected to first shaft blocks (18).

7. The split-type expanding die for automobile bellows according to claim 6, characterized in that: The first shaft block (18) is rotatably connected to a connecting rod (19) inside, and one end of the two connecting rods (19) away from the first shaft block (18) is rotatably connected to a second shaft block (20).

8. The split-type expanding die for automobile bellows according to claim 7, characterized in that: An outer support rod (21) is fixedly connected to one side of the second shaft block (20) away from the connecting rod (19); outer surfaces of the two outer support rods (21) are movably embedded on the outside of the main pipe (12); and an outer support plate (22) is fixedly connected to one end of the outer support rod (21) away from the second shaft block (20).

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