Pipe expanding device for automobile exhaust pipe machining

Abstract

The utility model belongs to the technical field of pipe expanding devices, and particularly relates to a pipe expanding device for automobile exhaust pipe machining, which comprises a rectangular bearing plate, a mounting plate is vertically and fixedly connected to the upper end of the bearing plate, an expanding cone device is movably connected to the center of the upper portion of the mounting plate, and a motor is horizontally placed on the bearing plate. The output end of the motor penetrates through the mounting plate, the output end of the motor is rotationally connected with the input end of the expansion cone device through a belt pulley, a foot support is arranged on the bearing plate, two sliding rods are mounted in the center of the upper end of the foot support, the sliding rods are sleeved with a walking motor, and a clamping device is mounted on one side of the walking motor. The automobile exhaust pipe expanding device belongs to the technical field of pipe expanding devices and can expand automobile exhaust pipes with different calibers.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe expansion devices, and specifically relates to a pipe expansion device for processing automobile exhaust pipes. Background Art

[0002] The expansion device for automobile exhaust pipe processing is a device used for automobile exhaust pipe processing, which mainly involves the following aspects: the expansion device is used to process automobile exhaust pipes, and its main function is to expand the diameter of the exhaust pipe to improve exhaust efficiency and performance. Its principle is usually to plastically deform the exhaust pipe material through mechanical force or pressure, so as to increase the diameter of the exhaust pipe; the expansion device is usually used in the forming process of the exhaust pipe, combined with the mold and pressure equipment, through a series of processing steps and parameter control, the exhaust pipe is accurately processed to ensure that the size and shape of the expanded pipe meet the requirements; the expansion device usually has an automated control system, which can accurately control the processing process and improve production efficiency and product quality. At the same time, some high-end expansion devices may also have forming and adjustment functions, and can be customized according to different requirements; in general, the technical background of the expansion device for automobile exhaust pipe processing covers multiple aspects such as mechanical processing, material deformation and process control to meet the automotive industry's requirements for exhaust system performance.

[0003] Among the currently known automobile exhaust pipe expansion devices, most of them are only used to expand pipes of a single diameter. When the diameter of the expansion task is increased or decreased, the workers often need to perform a series of complex disassembly or even replace the expansion device. Therefore, there is still a need for an expansion device for processing automobile exhaust pipes of different diameters. Utility Model Content

[0004] The utility model belongs to the technical field of pipe expansion devices and can expand automobile exhaust pipes with different calibers.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A pipe expansion device for automobile exhaust pipe processing includes a rectangular receiving plate, the upper end of the receiving plate is vertically fixedly connected to a mounting plate, the upper center of the mounting plate is movably connected to an expansion cone device, a motor is horizontally placed on the receiving plate, the output end of the motor passes through the mounting plate, the output end of the motor is rotatably connected to the input end of the expansion cone device via a pulley, a foot bracket is provided on the receiving plate, two sliding rods are installed at the center of the upper end of the foot bracket, a travel motor is sleeved on the slide rod, and a clamping device is installed on one side of the travel motor.

[0007] In a preferred embodiment, the expansion cone device is divided into several cones and the cones gradually shrink. The expansion cone device near the mounting plate side includes a first cone. One end of the first cone away from the mounting plate is fixedly connected to a first cylinder. The other end of the first cylinder is fixedly connected to a second cone. The other end of the second cone is fixedly connected to a second cylinder. The other end of the second cylinder is connected to a third cone.

[0008] In a preferred embodiment, the radius of the output end of the motor is smaller than the radius of the input end of the expansion cone device, and the output end of the motor rotates synchronously with the input end of the expansion cone through a control pulley.

[0009] In a preferred embodiment, the clamping device includes a main shaft mounted on a traveling motor. Electric telescopic devices are fixedly connected to the upper and lower ends of the main shaft. One end of the electric telescopic device away from the main shaft is provided with a telescopic rod. The other end of the telescopic rod is fixedly connected to a connecting member. The connecting member is hinged inside a connecting portion. One end of the connecting portion away from the main shaft is fixedly connected to a short shaft. The short shaft is fixedly connected to a convex block.

[0010] In a preferred embodiment, the clamping device includes movable clamps. The two movable clamps are hinged on a clamping plate. A convex block is fixedly connected to the side of the movable clamp.

[0011] In a preferred embodiment, the connecting portion is semi-enclosed in shape and the connecting portion is overall flat.

[0012] The technical effects achieved by the present invention are as follows:

[0013] When performing the pipe expanding process on an automobile exhaust pipe, first, the empty pipe is clamped by the clamping device. Among them, when it is necessary to clamp an empty pipe with a larger diameter, the length of the telescopic rod can be adjusted through the electric telescopic device, so that the telescopic rod hinged on the connecting portion is shorter. By shortening the distance between the triangular block and the electric telescopic rod, the movable clamp hinged on the rotating shaft is driven to rotate outwards, so that the movable clamp opens, facilitating the clamping of an empty pipe with a larger diameter; when it is necessary to clamp an empty pipe with a smaller diameter, the opposite is true; after the clamping device clamps, the traveling motor drives the clamped empty pipe to slowly move towards the expansion cone device until the empty pipe is expanded to the ideal diameter, and then the traveling motor stops.

[0014] The present invention belongs to the technical field of pipe expanding devices and can expand automobile exhaust pipes with different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the main structure diagram of the present invention;

[0016] Figure 2It is a structural schematic diagram of the expansion cone device and the motor of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the clamping device of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the connecting piece and the connecting part of the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Receiver plate; 2. Mounting plate; 3. Expanding cone device; 301. First cone; 302. First column; 303. Second cone; 304. Second column; 305. Third cone; 306. Connecting shaft; 4. Foot support; 401. Sliding rod; 402. Traveling motor; 5. Pulley; 6. Motor; 601. Motor output end; 7. Clamping device; 701. Movable clamp; 8. Clamping plate; 801. Rotating shaft; 9. Bump; 10. Connecting part; 11. Connecting piece; 12. Telescopic rod; 13. Electric telescopic device; 14. Main shaft; 15. Short shaft. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] like Figure 1 As shown, a pipe expanding device for automobile exhaust pipe processing includes a rectangular receiving plate 1, the upper end of the receiving plate 1 is vertically fixedly connected to a mounting plate 2, the upper center of the mounting plate 2 is movably connected to an expansion cone device 3, a motor 6 is horizontally placed on the receiving plate 1, the output end of the motor 6 passes through the mounting plate 2, the output end of the motor 6 is rotatably connected to the input end of the expansion cone device 3 through a pulley 5, a foot bracket 4 is provided on the receiving plate 1, two slide bars 401 are installed at the center of the upper end of the foot bracket 4, a travel motor 402 is sleeved on the slide bar 401, and a clamping device 7 is installed on one side of the travel motor 402.

[0024] Specifically, first, the empty pipe is clamped by the clamping device 7. Among them, when clamping an empty pipe with a larger diameter, the length of the telescopic rod 12 can be adjusted by the electric telescopic device 13, making the telescopic rod 12 hinged on the connecting part 10 shorter. By shortening the distance between the triangular block and the electric telescopic rod 12, the movable clamp 701 hinged on the rotating shaft 801 rotates outward, causing the movable clamp 701 to open, so as to be able to clamp an empty pipe with a larger diameter; when clamping an empty pipe with a smaller diameter, the opposite is true; after the clamping device 7 clamps, the traveling motor 402 drives the clamped empty pipe to slowly move towards the expansion cone device 3. The output end 601 of the motor drives the pulley 5 to drive the input end of the expansion cone device 3, causing the expansion cone device 3 to rotate until the empty pipe is expanded to the ideal diameter, and then the traveling motor 402 stops. The traveling motor 402 has been very widely used in the current technical application field and belongs to the existing mature technology, so its working principle will not be elaborated here.

[0025] As Figure 2 shown, a connecting shaft 306 is provided on one side of the expansion cone device 3. The connecting shaft 306 passes through the mounting plate 2 rotatably through a bearing. Pulley 5 is provided on both the motor output end 601 and the connecting shaft 306. The two pulleys 5 are connected by a conveyor belt, and the radius of the pulley 5 on the connecting shaft 306 is greater than the radius of the pulley 5 on the motor output end 601.

[0026] Specifically, the output power of the motor 6 should be large enough, but the rotation speed of the rotating shaft 801 of the motor 6 should be as small as possible, so that the output shaft can obtain a large enough rotational force, which is transmitted to the input end of the expansion cone device 3 through the pulley 5, enabling the expansion cone device 3 itself to also obtain a large enough rotational force, and the extrusion force for expanding the pipeline is stronger, achieving an ideal pipe expansion effect.

[0027] As Figure 2 shown, the expansion cone device 3 is divided into several cones and the cones gradually shrink. The expansion cone device 3 close to the mounting plate 2 includes a first cone 301. The first cone 301 is fixedly connected to a first cylinder 302 at the end far from the mounting plate 2. The other end of the first cylinder 302 is fixedly connected to a second cone 303. The other end of the second cone 303 is fixedly connected to a second cylinder 304. The other end of the second cylinder 304 is connected to a third cone 305.

[0028] Specifically, the expansion cone device 3 may not only have three cones, but also be a combination of more than three cones with different radii. The more the number of cones, the more different diameters the expansion cone device 3 can expand, making the function of the expansion cone device 3 more powerful. However, it should be noted that a cylinder needs to be reserved between each cone to play a buffering role.

[0029] As shown Figure 3 in FIG. 2, the clamping device 7 includes a main shaft 14 mounted on the traveling motor 402. Electric telescopic devices 13 are fixedly connected to the upper and lower ends of the main shaft 14. The electric telescopic devices 13 are provided with telescopic rods 12 at the ends far from the main shaft 14. The other ends of the telescopic rods 12 are fixedly connected to a connecting member 11. The connecting member 11 is hinged inside the connecting portion 10. The connecting portion 10 is fixedly connected to a short shaft 15 at the end far from the main shaft 14. The short shaft 15 is fixedly connected to the convex block 9.

[0030] Specifically, the clamping device 7 is composed of a movable clamp 701 and several hinge rods. Among them, the electric telescopic device 13 can be regarded as a hinge rod, the main shaft 14 and the clamping plate 8 can be regarded as a hinge rod, and a part of the convex block 9 and the movable clamp 701 can also be regarded as a hinge rod. Therefore, the three hinge rods are connected to form a stable triangular structure. Among them, the electric telescopic device 13 is a hinge rod with a variable length. A triangle with a variable side length makes the angle of the movable clamp 701 become an adjustable clamping plate 8, which can clamp empty pipes with different diameters for pipe expansion.

[0031] As shown Figure 3 in FIG. 3, the clamping device 7 includes a movable clamp 701. The two movable clamps 701 are hinged to the clamping plate 8 through a rotating shaft 801. A convex block 9 is fixedly connected to the side surface of the movable clamp 701.

[0032] Specifically, the convex block 9 is fixedly connected to the movable clamp 701. Therefore, the convex block 9 and the movable clamp 701 can be regarded as a whole. Among them, the convex block 9 is not necessarily triangular, and can also be a circular or square columnar shape, or a strip shape connected to the movable clamp 701. Further, in order to prevent the workpiece from shifting during the reaming process, a resistance increasing pad is also provided inside the movable clamp 701 to prevent the workpiece from slipping due to unstable clamping.

[0033] As shown Figure 4 in FIG. 4, the connecting portion 10 is semi-enclosed and the connecting portion 10 is flat as a whole.

[0034] Specifically, both the connecting portion 10 and the connecting member 11 are flat, and the connecting portion 10 should enclose the connecting member 11 to obtain a better hinge effect, so that when the electric telescopic device 13 controls the telescopic rod 12 to work, the movable clamp 701 can rotate better.

[0035] The working principle of the present utility model is as follows: First, the empty tube is clamped by the clamping device 7. Among them, when clamping an empty tube with a larger diameter, the length of the telescopic rod 12 can be adjusted by the electric telescopic device 13, so that the telescopic rod 12 hinged on the connecting portion 10 is shorter. By shortening the distance between the triangular block and the electric telescopic rod 12, the movable clamp 701 hinged on the rotating shaft 801 is driven to rotate outwards, so that the movable clamp 701 opens, facilitating the clamping of an empty tube with a larger diameter; when clamping an empty tube with a smaller diameter, the opposite is true; after the clamping device 7 clamps, the traveling motor 402 drives the clamped empty tube to slowly move towards the expansion cone device 3. The output end 601 of the motor drives the pulley 5 to drive the input end of the expansion cone device 3, so that the expansion cone device 3 rotates until the empty tube is expanded to the ideal diameter, and then the traveling motor 402 stops.

[0036] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specifically stated and limited, are implemented according to the conventional means in this field.

Claims

1. A pipe expansion device for automobile exhaust pipe processing, characterized in that: The invention comprises a rectangular receiving plate (1), the upper end of which is vertically fixedly connected to a mounting plate (2), the upper center of which is movably connected to an expansion cone device (3), a motor (6) is installed on the receiving plate (1), the output end of which rotates through the mounting plate (2) via a bearing, the output end of which is transmission-connected to the input end of the expansion cone device (3), two groups of foot supports (4) are provided on the receiving plate (1), two slide bars (401) are installed at the center of the upper end of each group of foot supports (4), a travel motor (402) which can move along its extension direction is provided on the slide bar (401), and a clamping device (7) for clamping a workpiece is installed on one side of the travel motor (402).

2. The pipe expansion device for automobile exhaust pipe processing according to claim 1, characterized in that: A connecting shaft (306) is provided on one side of the expansion cone device (3), and the connecting shaft (306) rotatably penetrates the mounting plate (2) through a bearing. Pulleys are provided on the motor output end (601) and the connecting shaft (306), and the two pulleys are connected by a conveyor belt (5), and the radius of the pulley on the connecting shaft (306) is greater than the radius of the pulley on the motor output end (601).

3. The pipe expansion device for automobile exhaust pipe processing according to claim 1, characterized in that: The expansion cone device (3) is divided into a plurality of cones and the cones gradually shrink. The expansion cone device (3) on the side close to the mounting plate (2) comprises a first cone (301), the first cone (301) is fixedly connected to a first column (302) at one end away from the mounting plate (2), the other end of the first column (302) is fixedly connected to a second cone (303), the other end of the second cone (303) is fixedly connected to a second column (304), and the other end of the second column (304) is connected to a third cone (305).

4. The pipe expansion device for automobile exhaust pipe processing according to claim 1, characterized in that: The clamping device (7) comprises a main shaft (14) mounted on a travel motor (402), the main shaft (14) being hingedly connected to an electric telescopic device (13) at its upper and lower ends, the electric telescopic device (13) being provided with a telescopic rod (12) at one end away from the main shaft (14), the other end of the telescopic rod (12) being fixedly connected to a connecting piece (11), the connecting piece (11) being hingedly connected to the inside of a connecting portion (10), the connecting portion (10) being fixedly connected to a short shaft (15) at one end away from the main shaft (14), the short shaft (15) being fixedly connected to the protrusion (9).

5. The pipe expansion device for automobile exhaust pipe processing according to claim 4, characterized in that: The clamping device (7) comprises a movable clamp (701), wherein the two movable clamps (701) are hinged on the clamping plate (8) via a rotating shaft (801), and a protrusion (9) is fixedly connected to the side surface of the movable clamp (701).

6. The pipe expanding device for processing automobile exhaust pipes according to claim 5, characterized in that: The connecting portion (10) is in a semi-enclosed shape, and the connecting portion (10) is flat as a whole.

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