A flaring die for an automobile exhaust pipe

Abstract

The utility model belongs to exhaust pipe processing technical field especially is a kind of automobile exhaust pipe flaring die, including base, the top of base is fixedly connected with mounting bracket, the top of base is provided with the exhaust pipe body of car, the centering clamping mechanism is arranged between exhaust pipe body, base and mounting bracket, the top of base is fixedly connected with support plate, the side fixed connection of support plate has cylinder no. One, the output shaft of cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of exhaust pipe processing technology, and in particular to an automobile exhaust pipe flaring mold. Background Technology

[0002] The automotive exhaust pipe is installed in the exhaust manifold between the engine exhaust manifold and the muffler, making the entire exhaust system flexibly connected. This serves to reduce vibration and noise, facilitate installation, and extend the lifespan of the exhaust muffler system. During the manufacturing process of the automotive exhaust pipe, after the pipe is formed, one end needs to be enlarged. Traditionally, this is done manually. The exhaust pipe is placed in a jig, and a worker takes out a flaring device and places it at the opening of one end of the exhaust pipe. A hammer is then used to strike the flaring device, driving its working end into the exhaust pipe and deforming the opening at that end.

[0003] A search revealed a Chinese patent (CN222519759U) for an automotive exhaust pipe flaring mold. The mold includes a base plate with a support connected to its top. A first hydraulic cylinder is connected through one side of the support, and a flaring block is connected to the output end of the first hydraulic cylinder. This invention, through a centering component structure, allows for rapid centering of the exhaust pipe body. The exhaust pipe body passes through two connecting plates via a centering groove. Tightening the connecting block causes two screws to rotate, resulting in relative movement of two pressure plates on the screws and rods. The arc groove clamps the exhaust pipe body, positioning it in the center of the centering groove. This achieves rapid centering of the exhaust pipe body with the flaring block, improving the flaring efficiency and enhancing the flaring quality of the exhaust pipe body.

[0004] However, the existing automotive exhaust pipe flaring molds have some shortcomings. The flaring blocks are relatively fixed, making it inconvenient to replace different flaring blocks of different specifications according to the different diameters of automotive exhaust pipes and the required flaring size, thus reducing the practicality of the device. Therefore, we propose an automotive exhaust pipe flaring mold to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned shortcomings and to propose a mold for flaring up automobile exhaust pipes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A car exhaust pipe flaring mold includes a base, a mounting bracket fixedly connected to the top of the base, a car exhaust pipe body disposed above the base, a centering clamping mechanism disposed between the exhaust pipe body, the base and the mounting bracket, a support plate fixedly connected to the top of the base, a cylinder fixedly connected to one side of the support plate, a mounting plate fixedly connected to the output shaft of the cylinder, four flaring nozzles of different sizes disposed on one side of the mounting plate, a disassembly and switching mechanism disposed between the mounting plate and the four flaring nozzles, and two guide rods fixedly connected to one side of the mounting plate, both guide rods being slidably sleeved within the support plate.

[0008] As a preferred embodiment of this utility model, the centering clamping mechanism includes two arc-shaped clamping plates, a gear rotatably connected to the inner wall of the rear side of the mounting frame, a cylinder two fixedly connected to the top of the mounting frame, and two cylinders fixedly connected to the top of the base. Lifting rods are slidably sleeved inside the cylinders. A connecting frame is fixedly connected to the rear side of the two lifting rods. A lifting plate is fixedly connected to the output shaft of the cylinder two. The upper arc-shaped clamping plate is fixedly connected to the bottom of the lifting plate, and the lower arc-shaped clamping plate is fixedly connected to the top of the two lifting rods. Racks are fixedly connected to the rear side of the connecting frame and the bottom of the lifting plate. Both racks mesh with the gear. The exhaust pipe body is movably abutted between the two arc-shaped clamping plates.

[0009] As a preferred embodiment of this utility model, two stabilizing plates are fixedly connected to the rear inner wall of the mounting bracket, and the gear is rotatably connected between the two stabilizing plates.

[0010] As a preferred embodiment of this utility model, two vertical rods are fixedly connected between the lifting plate and the upper arc-shaped clamping plate.

[0011] As a preferred embodiment of this utility model, the disassembly and switching mechanism includes a turntable rotatably connected to one side of the mounting plate, a sleeve fixedly connected to one side of the mounting plate, and a connecting block fixedly connected to one end of the flared end. The turntable has four connecting slots on one side, and the four connecting blocks are movably inserted into the corresponding connecting slots. The connecting blocks have slots on their outer sides. Four springs are fixedly connected to the outer side of the turntable. A limit plate is fixedly connected to the outer end of each spring. A locking rod is fixedly connected to the inner side of the limit plate, and the four locking rods are movably locked into the corresponding slots.

[0012] As a preferred embodiment of this utility model, four springs are respectively sleeved on the outer side of the corresponding clamping rod, a bearing is fixedly connected to one side of the mounting plate, and the turntable is fixedly sleeved inside the inner ring of the bearing.

[0013] As a preferred embodiment of this utility model, a hand-held plate is fixedly connected to the outer side of the limiting plate, a second spring is fixedly connected to the inner wall of one side of the sleeve, a sliding plate is fixedly connected to one end of the second spring, a positioning plate is fixedly connected to one side of the sliding plate, and a bolt is threadedly connected between the positioning plate and the hand-held plate.

[0014] As a preferred embodiment of this utility model, both the positioning plate and the handheld plate have through holes on one side, and the bolts are movably fitted into the two through holes.

[0015] In this utility model, a car exhaust pipe flaring mold is described. Based on exhaust pipes of different diameters and the required flaring size, the bolts are unscrewed, and the positioning plate is pressed to the left, causing it to retract into the housing without limiting the handheld plate. Then, the handheld plate can be used to rotate the turntable, causing the corresponding flaring nozzle to rotate downwards. Simultaneously, the positioning plate is released, allowing it to extend and abut against the rear of the handheld plate, thus positioning the handheld plate and the flaring nozzle. This ensures the rotated flaring nozzle is coaxially aligned with the exhaust pipe. The bolts are then tightened to lock the handheld plate and turntable. Locking the handheld plate significantly improves the stability of the flaring nozzle. When the flaring nozzle needs replacement, the handheld plate is used to pull the limiting plate and the locking rod outwards, causing the locking rod to disengage from the slot without fixing the connecting block. The flaring nozzle can then be disassembled and replaced, improving the device's performance.

[0016] In this utility model, an exhaust pipe flaring mold is described. The exhaust pipe body is placed in the lower arc-shaped clamping plate. The second cylinder is activated, which drives the lifting plate to move down. Through the meshing transmission of two racks and gears, the lifting plate, connecting frame and two arc-shaped clamping plates are driven to move closer to each other synchronously, thereby centering and clamping the exhaust pipe body to ensure that the exhaust pipe body is aligned with the lower flaring head. Then, the first cylinder is activated, which drives the mounting plate, turntable and the lower flaring head to move to the right to perform the flaring operation on the exhaust pipe body.

[0017] This utility model has a reasonable structural design. The turntable is equipped with four flaring nozzles of different sizes, and the four flaring nozzles are easy to rotate and switch, so that different sizes of flaring nozzles can be used for exhaust pipes of different specifications, thereby increasing the application range of the device. At the same time, it is convenient to disassemble and replace the flaring nozzles regularly, thereby improving the performance and reliability. Attached Figure Description

[0018] Figure 1 This is a first-view perspective view of a car exhaust pipe flaring mold proposed in this utility model.

[0019] Figure 2 This is a second-view perspective view of a car exhaust pipe flaring mold proposed in this utility model.

[0020] Figure 3 This is a partial cross-sectional view of an automobile exhaust pipe flaring mold proposed in this utility model;

[0021] Figure 4 for Figure 1 A schematic diagram of the structure of part A;

[0022] Figure 5 for Figure 2 A structural diagram of section B;

[0023] Figure 6 for Figure 3 A structural diagram of part C.

[0024] In the diagram: 1. Base; 2. Mounting bracket; 3. Exhaust pipe body; 4. Support plate; 5. Guide rod; 6. Mounting plate; 7. Expanding mouth; 8. Disassembly and assembly switching mechanism; 9. Centering clamping mechanism; 10. Cylinder 1; 801. Bearing; 802. Turntable; 803. Jacket; 804. Bolt; 805. Positioning plate; 806. Hand-held plate; 807. Limiting plate; 808. Spring 1; 809. Locking rod; 810. Locking groove; 811. Connecting groove; 812. Connecting block; 813. Slide plate; 814. Spring 2; 91. Cylinder 2; 92. Lifting plate; 93. Arc-shaped clamping plate; 94. Cylinder body; 95. Lifting rod; 96. Connecting bracket; 97. Rack; 98. Gear; 99. Stabilizing plate. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1-6 A car exhaust pipe flaring mold includes a base 1, a mounting bracket 2 fixedly connected to the top of the base 1, a car exhaust pipe body 3 disposed above the base 1, a centering clamping mechanism 9 disposed between the exhaust pipe body 3, the base 1 and the mounting bracket 2, a support plate 4 fixedly connected to the top of the base 1, a cylinder 10 fixedly connected to one side of the support plate 4, a mounting plate 6 fixedly connected to the output shaft of the cylinder 10, four flaring nozzles 7 of different sizes disposed on one side of the mounting plate 6, a disassembly and switching mechanism 8 disposed between the mounting plate 6 and the four flaring nozzles 7, and two guide rods 5 fixedly connected to one side of the mounting plate 6, both guide rods 5 being slidably sleeved within the support plate 4.

[0027] Furthermore, refer to Figures 1-4The centering clamping mechanism 9 includes two arc-shaped clamping plates 93, a gear 98 rotatably connected to the inner wall of the rear side of the mounting frame 2, a cylinder 91 fixedly connected to the top of the mounting frame 2, and two cylinders 94 fixedly connected to the top of the base 1. A lifting rod 95 is slidably sleeved inside the cylinder 94. A connecting frame 96 is fixedly connected to the rear side of the two lifting rods 95. A lifting plate 92 is fixedly connected to the output shaft of the cylinder 91. The upper arc-shaped clamping plate 93 is fixedly connected to the bottom of the lifting plate 92, and the lower arc-shaped clamping plate 93 is fixedly connected to the top of the two lifting rods 95. A rack 97 is fixedly connected to the rear side of the connecting frame 96 and the bottom of the lifting plate 92. Both racks 97 mesh with the gear 98. The exhaust pipe body 3 is movably abutted between the two arc-shaped clamping plates 93.

[0028] Using the above scheme: Place the exhaust pipe body 3 inside the lower arc-shaped clamp 93, start cylinder 2 91, cylinder 2 91 drives the lifting plate 92 to move down, and through the meshing transmission of two racks 97 and gears 98, drive the lifting plate 92, connecting frame 96 and two arc-shaped clamps 93 to move closer to each other synchronously, thereby centering and clamping the exhaust pipe body 3 to ensure that the exhaust pipe body 3 is aligned with the lower flaring head 7. Then start cylinder 1 10, cylinder 1 10 drives the mounting plate 6, turntable 802 and the lower flaring head 7 to move to the right to perform flaring operation on the exhaust pipe body 3.

[0029] Furthermore, two stabilizing plates 99 are fixedly connected to the rear inner wall of the mounting bracket 2, and the gear 98 is rotatably connected between the two stabilizing plates 99 to improve the stability of the gear 98 rotation.

[0030] Furthermore, two vertical rods are fixedly connected between the lifting plate 92 and the upper arc-shaped clamping plate 93, which facilitates the upper arc-shaped clamping plate 93 to be fixed at the bottom of the lifting plate 92.

[0031] Furthermore, refer to Figures 1-3 , Figure 5 and Figure 6The disassembly and switching mechanism 8 includes a turntable 802 rotatably connected to one side of the mounting plate 6, a housing 803 fixedly connected to one side of the mounting plate 6, and a connecting block 812 fixedly connected to one end of the flared opening 7. Four connecting slots 811 are provided on one side of the turntable 802, and the four connecting blocks 812 are movably inserted into their respective connecting slots 811. A slot 810 is provided on the outer side of each connecting block 812. Four springs 808 are fixedly connected to the outer side of the turntable 802. A limiting plate 807 is fixedly connected to the outer end of each spring 808. The inner side of the limiting plate 807... Four locking rods 809 are fixedly connected and are movably engaged in the corresponding slots 810. A hand-held plate 806 is fixedly connected to the outer side of the limiting plate 807. A second spring 814 is fixedly connected to the inner wall of one side of the sleeve 803. A slide plate 813 is fixedly connected to one end of the second spring 814. A positioning plate 805 is fixedly connected to one side of the slide plate 813. A bolt 804 is threadedly connected between the positioning plate 805 and the hand-held plate 806. A through hole is opened on one side of both the positioning plate 805 and the hand-held plate 806. The bolt 804 is movably fitted into the two through holes.

[0032] Using the above method: Based on the different diameters and sizes of the exhaust pipe body 3, and the required flare size, unscrew the bolt 804, press the positioning plate 805 to the left, causing the positioning plate 805 to retract into the housing 803 without limiting the hand-held plate 806. Then, rotate the turntable 802 via the hand-held plate 806, causing the corresponding flare nozzle 7 to rotate downwards. Simultaneously, release the positioning plate 805, allowing it to extend and abut against the rear side of the hand-held plate 806, thus allowing the hand-held plate 806 and the flare nozzle 7 to be aligned. Position the device to ensure that the flared nozzle 7 is coaxially aligned with the exhaust pipe body 3 after rotation. Then tighten the bolt 804 to lock the hand plate 806 and the turntable 802. The locking of the hand plate 806 greatly improves the stability of the flared nozzle 7. When the flared nozzle 7 needs to be replaced, pull the limiting plate 807 and the locking rod 809 outward by using the hand plate 806. This causes the locking rod 809 to fall out of the slot 810 without fixing the connecting block 812. At this time, the flared nozzle 7 can be disassembled and replaced, improving the performance of the device.

[0033] Furthermore, four springs 808 are respectively sleeved on the outer side of the corresponding clamping rods 809. A bearing 801 is fixedly connected to one side of the mounting plate 6. The turntable 802 is fixedly sleeved in the inner ring of the bearing 801, which facilitates the support of the turntable 802, making its rotation more stable, and can guide the springs 808.

[0034] In this invention, firstly, according to the different diameters and sizes of the exhaust pipe body 3, and the required flare size, the bolt 804 is unscrewed, and the positioning plate 805 is pressed to the left, causing the positioning plate 805 to retract into the housing 803 without limiting the hand-held plate 806. Then, the turntable 802 can be rotated by the hand-held plate 806, causing the corresponding flare head 7 to rotate downwards. At the same time, the positioning plate 805 is released, allowing it to extend and abut against the rear side of the hand-held plate 806, thereby positioning the hand-held plate 806 and the flare head 7, ensuring that the rotated flare head 7 is coaxially aligned with the exhaust pipe body 3. Then, the bolt 804 is tightened, thereby locking the hand-held plate 806 and the turntable 802. The locking of the hand-held plate 806 greatly improves the stability of the flare head 7. When the flare head 7 needs to be replaced, the limiting plate 807 and the locking rod 809 are pulled outwards by the hand-held plate 806. This causes the locking rod 809 to disengage from the locking slot 810 without fixing the connecting block 812. At this point, the flaring head 7 can be disassembled and replaced to improve the effectiveness of the device. Then, the exhaust pipe body 3 is placed in the lower arc-shaped clamping plate 93. The second cylinder 91 is activated, which drives the lifting plate 92 to move down. Through the meshing transmission of the two racks 97 and the gear 98, the lifting plate 92, the connecting frame 96 and the two arc-shaped clamping plates 93 are driven to move closer to each other synchronously, thereby aligning and clamping the exhaust pipe body 3. The arc-shaped clamping plate 93 is made of a material with a high coefficient of friction, which can firmly clamp and fix the exhaust pipe body 3 and prevent the exhaust pipe body 3 from sliding to the right during flaring. This ensures that the exhaust pipe body 3 is aligned with the lower flaring head 7. Then, the first cylinder 10 is activated, which drives the mounting plate 6, the turntable 802 and the lower flaring head 7 to move to the right to flare the exhaust pipe body 3.

Claims

1. A mold for flaring an automotive exhaust pipe, characterized in that, Includes a base (1), a mounting bracket (2) is fixedly connected to the top of the base (1), an exhaust pipe body (3) of a car is provided above the base (1), a centering clamping mechanism (9) is provided between the exhaust pipe body (3), the base (1) and the mounting bracket (2), a support plate (4) is fixedly connected to the top of the base (1), a cylinder (10) is fixedly connected to one side of the support plate (4), a mounting plate (6) is fixedly connected to the output shaft of the cylinder (10), four flared nozzles (7) of different sizes are provided on one side of the mounting plate (6), a disassembly and assembly switching mechanism (8) is provided between the mounting plate (6) and the four flared nozzles (7), and two guide rods (5) are fixedly connected to one side of the mounting plate (6), both guide rods (5) are slidably sleeved in the support plate (4).

2. The automobile exhaust pipe flaring mold according to claim 1, characterized in that, The centering clamping mechanism (9) includes two arc-shaped clamps (93), a gear (98) rotatably connected to the inner wall of the rear side of the mounting frame (2), a cylinder (91) fixedly connected to the top of the mounting frame (2), and two cylinders (94) fixedly connected to the top of the base (1). A lifting rod (95) is slidably sleeved inside the cylinder (94). A connecting frame (96) is fixedly connected to the rear side of the two lifting rods (95). A lifting plate (92) is fixedly connected to the output shaft of the cylinder (91). The upper arc-shaped clamp (93) is fixedly connected to the bottom of the lifting plate (92), and the lower arc-shaped clamp (93) is fixedly connected to the top of the two lifting rods (95). A rack (97) is fixedly connected to the rear side of the connecting frame (96) and the bottom of the lifting plate (92). Both racks (97) mesh with the gear (98). The exhaust pipe (3) is movably abutted between the two arc-shaped clamps (93).

3. The automobile exhaust pipe flaring mold according to claim 2, characterized in that, Two stabilizing plates (99) are fixedly connected to the inner rear wall of the mounting bracket (2), and the gear (98) is rotatably connected between the two stabilizing plates (99).

4. The automobile exhaust pipe flaring mold according to claim 2, characterized in that, Two vertical rods are fixedly connected between the lifting plate (92) and the upper arc-shaped clamp (93).

5. The automobile exhaust pipe flaring mold according to claim 1, characterized in that, The disassembly and assembly switching mechanism (8) includes a turntable (802) rotatably connected to one side of the mounting plate (6), a sleeve (803) fixedly connected to one side of the mounting plate (6), and a connecting block (812) fixedly connected to one end of the flared end (7). The turntable (802) has four connecting slots (811) on one side, and the four connecting blocks (812) are respectively movably inserted into the corresponding connecting slots (811). The connecting blocks (812) have slots (810) on the outer side. The turntable (802) has four springs (808) fixedly connected to the outer side. The outer end of the springs (808) is fixedly connected to a limiting plate (807). The inner side of the limiting plate (807) is fixedly connected to a locking rod (809), and the four locking rods (809) are respectively movably locked into the corresponding slots (810).

6. The automobile exhaust pipe flaring mold according to claim 5, characterized in that, Four springs (808) are respectively sleeved on the outside of the corresponding levers (809), and a bearing (801) is fixedly connected to one side of the mounting plate (6). The turntable (802) is fixedly sleeved in the inner ring of the bearing (801).

7. The automobile exhaust pipe flaring mold according to claim 5, characterized in that, A hand-held plate (806) is fixedly connected to the outer side of the limiting plate (807). A second spring (814) is fixedly connected to the inner wall of one side of the sleeve (803). A slide plate (813) is fixedly connected to one end of the second spring (814). A positioning plate (805) is fixedly connected to one side of the slide plate (813). A bolt (804) is threadedly connected between the positioning plate (805) and the hand-held plate (806).

8. The automobile exhaust pipe flaring mold according to claim 7, characterized in that, Both the positioning plate (805) and the handheld plate (806) have through holes on one side, and the bolt (804) is movably fitted into the two through holes.

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