Bending and closing tool structure of automobile exhaust pipe

Abstract

The utility model belongs to the technical field of exhaust pipe production and processing, and relates to an automobile exhaust pipe bending and closing tool structure which comprises a machine box, a support and a feeding box, the feeding box is fixedly connected to the left side of the machine box, the support is fixedly connected to the lower portion of the machine box and the lower portion of the feeding box, and a conveying device is arranged in the machine box; the conveying device comprises a first air cylinder, an upper conveying block, a conveying motor and a lower conveying block. According to the bending and closing-up tool structure for the automobile exhaust pipe, a first air cylinder drives an upper conveying block to ascend and descend to clamp the exhaust pipe, a conveying motor enables the exhaust pipe to move, a second air cylinder drives a rotating device to ascend and descend, an electric push rod drives a rotating block to clamp the exhaust pipe, a rotating motor enables the exhaust pipe to rotate to adjust the angle, and the exhaust pipe is fixed through a third air cylinder; the conveying motor conveys the exhaust pipe to the bending device, the second hydraulic cylinder drives the bending block to bend, the lead screw motor drives the limiting plate to move so as to change the internal space of the feeding box, the feeding motor drives the exhaust pipe to move, and the first hydraulic cylinder drives the closing barrel to close the exhaust pipe.

Description

Technical Field

[0001] This utility model relates to the field of exhaust pipe manufacturing and processing technology, specifically to a bending and closing tooling structure for an automobile exhaust pipe. Background Technology

[0002] The exhaust pipe is an important component of the vehicle's exhaust system. It is installed between the engine exhaust manifold and the muffler, making the entire exhaust system flexibly connected. This helps to reduce vibration and noise, facilitate installation, and extend the life of the exhaust muffler system.

[0003] During the production and processing of exhaust pipes, they need to be bent and shaped in a mold, and the ends also need to be finished. Existing exhaust pipe bending molds have relatively limited functionality and do not have the function of finishing the ends.

[0004] For example, Chinese patent CN215279326U discloses a bending and finishing fixture structure for an automotive exhaust pipe, including multiple bending modules. Each bending module includes an upper die base and a lower die base that cooperate with each other. The upper die base and the lower die base are respectively provided with forming grooves. The forming grooves on the multiple bending modules are arranged in different positions and directions. One end of the forming groove is provided with a finishing groove and the other end is provided with an end limiting groove. A limiting baffle is provided in the end limiting groove. A finishing component is detachably provided in the finishing groove. A clamping groove is also provided on one side of the upper die base or the lower die base. This bending and finishing fixture structure is reasonably designed, flexible, easy to assemble and use, and can complete the bending of the exhaust pipe in different directions and angles. At the same time, the bending module also has a finishing function, which performs finishing processing on the pipe opening of the exhaust pipe while bending.

[0005] However, the device requires frequent mold changes, making operation cumbersome and work efficiency low. Utility Model Content

[0006] The purpose of this utility model is to provide a bending and closing tooling structure for automobile exhaust pipes, so as to solve the problems of frequent mold replacement, cumbersome operation, and low work efficiency of the device mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bending and closing tooling structure for an automobile exhaust pipe, comprising a housing, a bracket, and a feeding box, wherein the feeding box is fixedly connected to one side of the housing along a first direction, the bracket is fixedly connected to the housing and the feeding box below, and a conveying device is provided inside the housing;

[0008] The conveying device includes a first cylinder, an upper conveying block, a conveying motor, and a lower conveying block. The first cylinder is fixedly installed on the top of the machine housing. The upper conveying block is connected to the output end of the first cylinder. The lower conveying block is fixedly connected to the bottom of the machine housing. The upper and lower conveying blocks are arranged correspondingly. Rollers are installed inside both the upper and lower conveying blocks. The conveying motor is fixedly installed on the side of the upper conveying block away from the lower conveying block, and its output end is connected to the roller inside the upper conveying block. The first cylinder drives the upper conveying block to lift and clamp the exhaust pipe, and the conveying motor drives the roller to rotate, causing the exhaust pipe to move.

[0009] Preferably, the chassis is equipped with a rotating device, which includes a second cylinder, a connecting plate, a slide rail, a connecting column, a sliding groove, an electric push rod, a rotating block, and a rotary motor. The second cylinder is fixedly installed on the top of the chassis. The connecting plate is connected to the output end of the second cylinder. The slide rail is fixedly connected to both sides of the chassis along the second direction. The connecting plate is provided with the connecting column at both ends along the second direction. The sliding groove is provided below each of the two connecting columns and is slidably connected to the corresponding slide rail. An electric push rod is provided on the side of the two sliding grooves that are close to each other. The output end of the two electric push rods is provided with the rotating block. A roller is installed inside the rotating block. The rotary motor is fixedly installed on one side of one of the rotating blocks and its output end is connected to the roller. The second direction is perpendicular to the first direction. The second cylinder drives the rotating device to rise and fall. The electric push rod drives the rotating block to clamp the exhaust pipe. The rotary motor drives the roller to rotate the exhaust pipe to adjust its angle.

[0010] Preferably, a third cylinder is fixedly installed on the top of the chassis, and the output end of the third cylinder is connected to an upper fixing block. A lower fixing block is fixedly connected to the bottom of the chassis, and the upper fixing block and the lower fixing block are correspondingly arranged. Rollers are installed inside the upper fixing block and the lower fixing block. A transmission motor is fixedly installed on one side of the upper fixing block, and the output end of the transmission motor is connected to the roller inside the upper fixing block. The exhaust pipe is fixed by lifting and lowering the third cylinder, and the exhaust pipe is transmitted to the bending device by the transmission motor.

[0011] Preferably, a bending box is fixedly connected to the bottom of the chassis, and a second hydraulic cylinder is fixedly installed inside the bending box. The output end of the second hydraulic cylinder is connected to a bending block, and the bending block is driven by the second hydraulic cylinder to bend the exhaust pipe.

[0012] Preferably, the feeding box is equipped with a feeding device, which includes a lead screw motor, a bidirectional lead screw, a limiting plate, a feeding block, and a feeding motor. The lead screw motor is fixedly installed on one side of the feeding box along the second direction. The bidirectional lead screw is connected to the output end of the lead screw motor and extends along the second direction. The bidirectional lead screw has a first thread and a second thread. There are two limiting plates, which are installed inside the feeding box. One of the limiting plates is threadedly connected to the first thread, and the other is threadedly connected to the second thread. The feeding block is fixedly connected above the lower surface inside the feeding box. Rollers are installed inside the feeding block. The feeding motor is fixedly installed on one side of the feeding block, and its output end is connected to the rollers inside the feeding block. The lead screw motor drives the limiting plate to move, changing the internal space of the feeding box to accommodate exhaust pipes of different sizes. The feeding motor also drives the exhaust pipe to move towards the machine casing.

[0013] Preferably, the feeding box is provided with a closing device on one side along the first direction. The closing device includes a first hydraulic cylinder, a mounting frame, a fixing cylinder, and a closing cylinder. The mounting frame is fixedly connected to one side of the feeding box along the first direction. The first hydraulic cylinder is fixedly installed above the mounting frame. The fixing cylinder is connected to the output end of the first hydraulic cylinder. The closing cylinder is installed inside the fixing cylinder. The first hydraulic cylinder drives the closing cylinder to close the exhaust pipe.

[0014] Preferably, the fixed cylinder has internal threads, and the fixed cylinder and the closing cylinder are connected by threads, which facilitates the replacement and maintenance of the closing cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The pressure bending and finishing fixture structure for automobile exhaust pipes uses a first cylinder to drive the upper conveyor block to lift and clamp the exhaust pipe, a conveyor motor to drive the rollers to rotate and move the exhaust pipe, a second cylinder to drive the rotating device to lift and lower, an electric push rod to drive the rotating block to clamp the exhaust pipe, a rotating motor to drive the rollers to rotate the exhaust pipe to adjust the angle, a third cylinder to lift and fix the exhaust pipe, a conveyor motor to transmit the exhaust pipe to the pressure bending device, and a second hydraulic cylinder to drive the pressure bending block to bend the exhaust pipe, thus eliminating the need for frequent mold changes.

[0017] 2. The bending and closing fixture structure for the automobile exhaust pipe uses a screw motor to drive the limit plate to move and change the internal space of the feeding box to accommodate exhaust pipes of different sizes. The feeding motor drives the exhaust pipe to move towards the machine box for easy feeding. The first hydraulic cylinder drives the closing cylinder to close the exhaust pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the conveying structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the rotating structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the fixed bending structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the feeding and closing structure of this utility model.

[0024] In the diagram: 1. Chassis; 101. Bracket; 102. Feeding box; 2. Screw motor; 201. Bidirectional screw; 202. Limiting plate; 203. Feeding block; 204. Feeding motor; 3. First hydraulic cylinder; 301. Mounting bracket; 302. Fixed cylinder; 303. Closing cylinder; 4. First cylinder; 401. Upper conveying block; 402. Conveying motor; 403. Lower conveying block; 5. Second cylinder; 501. Connecting plate; 502. Slide rail; 503. Connecting column; 504. Sliding groove; 505. Electric push rod; 506. Rotating block; 507. Rotating motor; 6. Third cylinder; 601. Upper fixed block; 602. Conveying motor; 603. Lower fixed block; 7. Bending box; 701. Second hydraulic cylinder; 702. Bending block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-6 This utility model provides a technical solution:

[0027] Example 1: A bending and finishing fixture structure for an automobile exhaust pipe, including a housing 1, a bracket 101 and a loading box 102. The loading box 102 is fixedly connected to one side of the housing 1 along a first direction. The bracket 101 is fixedly connected to the housing 1 and the loading box 102 below. A conveying device is provided inside the housing 1. In this example, the first direction is the horizontal direction.

[0028] The conveying device includes a first cylinder 4, an upper conveying block 401, a conveying motor 402, and a lower conveying block 403. The first cylinder 4 is fixedly installed on the top of the housing 1. The upper conveying block 401 is connected to the output end of the first cylinder 4. The lower conveying block 403 is fixedly connected to the lower part of the housing 1. The upper conveying block 401 and the lower conveying block 403 are arranged correspondingly. That is, in this embodiment, the upper conveying block 401 and the lower conveying block 403 are arranged in a vertical direction. Rollers are installed inside both the upper conveying block 401 and the lower conveying block 403. The conveying motor 402 is fixedly installed on the side of the upper conveying block 401 away from the lower conveying block 403, and its output end is connected to the roller inside the upper conveying block 401.

[0029] The housing 1 is equipped with a rotating device, which includes a second cylinder 5, a connecting plate 501, a slide rail 502, a connecting column 503, a sliding groove 504, an electric push rod 505, a rotating block 506, and a rotary motor 507. The second cylinder 5 is fixedly installed on the top of the housing 1. The connecting plate 501 is connected to the output end of the second cylinder 5. The slide rail 502 is fixedly connected to both sides of the housing 1 along the second direction. The connecting plate 501 has connecting columns 503 at both ends along the second direction. The bottom of the two connecting columns 503 is... Each is provided with a sliding groove 504, and the sliding groove 504 is slidably connected to the corresponding slide rail 502. An electric push rod 505 is provided on the side of the two sliding grooves 504 that are close to each other. A rotating block 506 is provided at the output end of the two electric push rods 505 respectively. A roller is installed inside the rotating block 506. A rotary motor 507 is fixedly installed on one side of one of the rotating blocks 506 and its output end is connected to the roller. The second direction is perpendicular to the first direction. In this embodiment, the second direction is the horizontal direction.

[0030] A third cylinder 6 is fixedly installed on the top of the chassis 1. The output end of the third cylinder 6 is connected to an upper fixing block 601. A lower fixing block 603 is fixedly connected to the bottom of the chassis 1. The upper fixing block 601 and the lower fixing block 603 are arranged correspondingly. That is, in this embodiment, the upper fixing block 601 and the lower fixing block 603 are arranged vertically. Rollers are installed inside the upper fixing block 601 and the lower fixing block 603. A transmission motor 602 is fixedly installed on one side of the upper fixing block 601, and the output end of the transmission motor 602 is connected to the roller of the upper fixing block 601.

[0031] A bending box 7 is fixedly connected to the bottom of the casing 1. A second hydraulic cylinder 701 is fixedly installed inside the bending box 7. A bending block 702 is connected to the output end of the second hydraulic cylinder 701.

[0032] In this embodiment, the first cylinder 4 drives the upper conveying block 401 to lift and clamp the exhaust pipe, the conveying motor 402 drives the roller to rotate and move the exhaust pipe, the second cylinder 5 drives the rotating device to lift and lower, the electric push rod 505 drives the rotating block 506 to clamp the exhaust pipe, the rotating motor 507 drives the roller to rotate the exhaust pipe to adjust the angle, the third cylinder 6 lifts and fixes the exhaust pipe, the conveying motor 602 transmits the exhaust pipe to the bending device, and the second hydraulic cylinder 701 drives the bending block 702 to bend the exhaust pipe, thus eliminating the need for frequent mold changes.

[0033] Example 2: Based on Example 1, a feeding device is provided inside the feeding box 102. The feeding device includes a lead screw motor 2, a bidirectional lead screw 201, a limiting plate 202, a feeding block 203, and a feeding motor 204. The lead screw motor 2 is fixedly installed on one side of the feeding box 102 along the second direction. The bidirectional lead screw 201 is connected to the output end of the lead screw motor 2 and extends along the second direction. The bidirectional lead screw 201 has a first thread and a second thread, and the rotation directions of the first thread and the second thread are opposite. There are two limiting plates 202. The two limiting plates 202 are installed inside the feeding box 102, and one of the limiting plates 202 is threadedly connected to the first thread, and the other limiting plate 202 is threadedly connected to the second thread. The feeding block 203 is fixedly connected above the lower surface inside the feeding box 102. Rollers are installed inside the feeding block 203. The feeding motor 204 is fixedly installed on one side of the feeding block 203, and its output end is connected to the rollers inside the feeding block 203.

[0034] In this embodiment, the lead screw motor 2 drives the bidirectional lead screw 201 to rotate, thereby causing the two limiting plates 202 to move closer or further apart, so as to change the internal space of the feeding box 102 to accommodate exhaust pipes of different sizes. The feeding motor 204 drives the exhaust pipe to move towards the machine box 1 to facilitate feeding.

[0035] Example 3: Based on Examples 1 and 2, a closing device is provided on one side of the feeding box 102 along the first direction. The closing device includes a first hydraulic cylinder 3, a mounting frame 301, a fixing cylinder 302, and a closing cylinder 303. The mounting frame 301 is fixedly connected to one side of the feeding box 102 along the first direction. The first hydraulic cylinder 3 is fixedly installed above the mounting frame 301. The fixing cylinder 302 is connected to the output end of the first hydraulic cylinder 3. The closing cylinder 303 is installed inside the fixing cylinder 302. The fixing cylinder 302 has threads inside, and the fixing cylinder 302 and the closing cylinder 303 are connected by threads.

[0036] In this embodiment, the first hydraulic cylinder 3 drives the closing cylinder 303 to close the exhaust pipe.

[0037] Working principle: The first cylinder 4 drives the upper conveyor block 401 to lift and clamp the exhaust pipe. The conveyor motor 402 drives the rollers to rotate and move the exhaust pipe. The second cylinder 5 drives the rotating device to lift and lower. The electric push rod 505 drives the rotating block 506 to clamp the exhaust pipe. The rotating motor 507 drives the rollers to rotate the exhaust pipe and adjust its angle. The third cylinder 6 lifts and fixes the exhaust pipe. The conveyor motor 602 transmits the exhaust pipe to the bending device. The second hydraulic cylinder 701 drives the bending block 702 to bend the exhaust pipe. The lead screw motor 2 drives the limit plate 202 to move and change the internal space of the feeding box 102 to accommodate exhaust pipes of different sizes. The feeding motor 204 drives the exhaust pipe to move towards the machine box 1. The first hydraulic cylinder 3 drives the closing cylinder 303 to close the exhaust pipe.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A press-bending closing tool structure for an automobile exhaust pipe, comprising a machine box (1), a support (101) and a feeding box (102), characterized in that: The feeding box (102) is fixedly connected to one side of the machine box (1) along a first direction, the support (101) is fixedly connected below the machine box (1) and the feeding box (102), and the machine box (1) is internally provided with a conveying device. The conveying device comprises a first air cylinder (4), an upper conveying block (401), a conveying motor (402) and a lower conveying block (403), the first air cylinder (4) is fixedly installed above the machine box (1), the upper conveying block (401) is connected to the output end of the first air cylinder (4), the lower conveying block (403) is fixedly connected below the inside of the machine box (1), the upper conveying block (401) and the lower conveying block (403) are correspondingly arranged, rollers are installed in the inside of the upper conveying block (401) and the lower conveying block (403), and the conveying motor (402) is fixedly installed on the side of the upper conveying block (401) away from the lower conveying block (403) and connected with the rollers in the inside of the upper conveying block (401).

2. The press-bending closing tool structure for the exhaust pipe of an automobile according to claim 1, characterized in that: The machine box (1) is internally provided with a rotating device, the rotating device comprises a second air cylinder (5), a connecting plate (501), a sliding rail (502), a connecting column (503), a sliding groove (504), an electric push rod (505), a rotating block (506) and a rotating motor (507), the second air cylinder (5) is fixedly installed above the machine box (1), the connecting plate (501) is connected to the output end of the second air cylinder (5), the sliding rail (502) is fixedly connected to the two sides of the inside of the machine box (1) along a second direction, the connecting plate (501) is provided with the connecting column at the two ends along the second direction, the sliding groove (504) is arranged below the two connecting columns (503), the sliding groove (504) is slidably connected with the corresponding sliding rail (502), the electric push rod (505) is arranged on the side of the two sliding grooves (504) close to each other, the output end of the electric push rod (505) is provided with the rotating block (506), the rotating block (506) is internally provided with a roller, the rotating motor (507) is fixedly installed on one side of one of the rotating blocks (506) and connected with the roller, and the second direction is perpendicular to the first direction.

3. The press-bending closing tool structure for the exhaust pipe of an automobile according to claim 1, characterized in that: A third air cylinder (6) is fixedly installed above the machine box (1), the output end of the third air cylinder (6) is connected with an upper fixed block (601), a lower fixed block (603) is fixedly connected below the inside of the machine box (1), and the upper fixed block (601) and the lower fixed block (603) are correspondingly arranged; rollers are installed in the inside of the upper fixed block (601) and the lower fixed block (603), a conveying motor (602) is fixedly installed on one side of the upper fixed block (601), and the output end of the conveying motor (602) is connected with the rollers in the inside of the upper fixed block (601).

4. The press brake closing tooling structure for an automobile exhaust pipe according to claim 1, wherein: A press-bending box (7) is fixedly connected below the machine box (1), a second hydraulic cylinder (701) is fixedly installed in the inside of the press-bending box (7), and the output end of the second hydraulic cylinder (701) is connected with a press-bending block (702).

5. The press brake closing tooling structure for an automobile exhaust pipe according to claim 1, wherein: The feeding box (102) is internally provided with a feeding device, the feeding device comprises a lead screw motor (2), a bidirectional lead screw (201), a limiting plate (202), a feeding block (203) and a feeding motor (204), the lead screw motor (2) is fixedly installed on one side of the feeding box (102) along the second direction, the bidirectional lead screw (201) is connected to the output end of the lead screw motor (2), the bidirectional lead screw (201) extends along the second direction, and the bidirectional lead screw (201) has a first thread and a second thread; the limiting plate (202) has two, two limiting plates (202) are installed inside the feeding box (102), and one of the limiting plates (202) is threadedly connected with the first thread, and the other limiting plate (202) is threadedly connected with the second thread; the feeding block (203) is fixedly connected to the upper surface of the inside of the feeding box (102), the feeding block (203) is internally provided with a roller, and the feeding motor (204) is fixedly installed on one side of the feeding block (203) and the output end is connected with the roller inside the feeding block (203).

6. The press brake closing tooling structure for an automobile exhaust pipe according to claim 1, wherein: The feeding box (102) is provided with a closing device on one side along the first direction, the closing device comprises a first hydraulic cylinder (3), a mounting frame (301), a fixed cylinder (302) and a closing cylinder (303), the mounting frame (301) is fixedly connected to one side of the feeding box (102) along the first direction, the first hydraulic cylinder (3) is fixedly installed above the mounting frame (301), the fixed cylinder (302) is connected to the output end of the first hydraulic cylinder (3), and the closing cylinder (303) is installed inside the fixed cylinder (302).

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