Punching and trimming die for end cover of automobile exhaust system

Abstract

The utility model relates to the technical field of punching dies, in particular to a punching and trimming die for an end cover of an automobile exhaust system, which comprises a base, the upper end of the base is fixedly connected with two first support plates which are correspondingly arranged left and right, and the ends, close to each other, of the two first support plates are rotatably connected with rotating rods; a U-shaped frame is fixedly connected between the two rotating rods jointly, a telescopic air cylinder with the output end facing downwards is arranged at the upper end of the U-shaped frame, an upper die plate is fixedly connected to the telescopic end of the telescopic air cylinder, a plurality of stamping rods are fixedly connected to the lower end of the upper die plate, and a limiting plate is fixedly connected between the left inner wall and the right inner wall of the U-shaped frame jointly. The multiple punching rods penetrate through the limiting plate and are in sliding connection with the limiting plate. The worm gear drives the rotating rod to rotate so as to drive the U-shaped frame to rotate, so that the orientation of the telescopic end of the telescopic air cylinder is adjusted, and the stamping rod is adjusted to a stamping angle suitable for workpiece machining for machining.

Description

Technical Field

[0001] This utility model relates to the field of punching die technology, and in particular to a punching and trimming die for an end cap of an automotive exhaust system. Background Technology

[0002] The exhaust system end cap is a key component of the exhaust pipe system, typically located at the end of the exhaust pipe or the outlet section of the exhaust tailpipe. Its main functions are to control exhaust flow, improve exhaust performance, and enhance the vehicle's appearance.

[0003] In the production and processing of automotive exhaust system end caps, punching and trimming dies are required for punching. However, some automotive exhaust system end caps are not standard cylindrical shapes, but rather tapered shapes that are thinner at the top and thicker at the bottom. The stamping rods in existing punching and trimming dies are mostly perpendicular to the platform. When processing tapered automotive exhaust system end caps that are thinner at the top and thicker at the bottom, it is easy to cause irregularity in the drilling, thus affecting the processing quality.

[0004] Therefore, we propose a punching and trimming die for the end cap of an automotive exhaust system to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a punching and trimming mold for the end cap of an automotive exhaust system.

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

[0007] A punching and trimming mold for an automotive exhaust system end cap includes a base. Two first support plates, arranged left and right, are fixedly connected to the upper end of the base. Rotating rods are rotatably connected to the ends of the two first support plates that are close to each other. A U-shaped frame is fixedly connected between the two rotating rods. A telescopic cylinder with its output end facing downward is provided at the upper end of the U-shaped frame. An upper template is fixedly connected to the telescopic end of the telescopic cylinder. Several stamping rods are fixedly connected to the lower end of the upper template. A limiting plate is fixedly connected between the left and right inner walls of the U-shaped frame. The several stamping rods pass through the limiting plate and are slidably connected to it.

[0008] To better achieve the above objectives, the present invention adopts a further technical solution: the upper end of the base is fixedly connected to two second support plates arranged in a front-to-back manner, and a turntable is rotatably connected to one end of each of the two second support plates that are close to each other. A pneumatic clamp is provided at one end of each of the two turntables that are close to each other. A first motor that drives the turntable located in front is fixedly installed at the front end of the second support plate located in front.

[0009] In order to better achieve the above object, the utility model adopts further technical scheme: the right end of first support plate at right side is fixedly connected with two third support plates which are correspondingly arranged in front and back, worm is rotatably connected between two third support plates, the right end of first support plate at right side is rotatably connected with worm wheel, worm and worm wheel are engaged, one end of one third support plate away from another third support plate is fixedly installed with second motor which drives worm to rotate.

[0010] In order to better achieve the above object, the utility model adopts further technical scheme: two pneumatic clamps are all inner support type clamps.

[0011] The utility model discloses the advantages are as follows: two pneumatic clamps are supported from the both ends of the workpiece and clamped, if the workpiece is conical, can drive the rotating rod to rotate through worm wheel and drive U-shaped frame rotation, so that the telescopic end of telescopic cylinder is adjusted to the punching angle of the punching rod, and the worm drives the worm wheel to rotate and has self-locking, further improves the stability when stamping, can adjust the punching angle of each punching rod, better adapts to the workpiece of different shapes of automobile exhaust system end cover, improves the processing quality. DRAWINGS

[0012] Fig. 1 It is the front perspective drawing of the punching and trimming die of automobile exhaust system end cover that the utility model proposes;

[0013] Fig. 2 It is the side perspective drawing of the punching and trimming die of automobile exhaust system end cover that the utility model proposes;

[0014] Fig. 3 It is the planar perspective drawing of the punching and trimming die of automobile exhaust system end cover that the utility model proposes.

[0015] In the drawing: 1 base, 2 first support plate, 3 rotating rod, 4 U-shaped frame, 5 telescopic cylinder, 6 upper die plate, 7 punching rod, 8 limit plate, 9 second support plate, 10 rotating disc, 11 pneumatic clamp, 12 first motor, 13 third support plate, 14 worm, 15 worm wheel, 16 second motor. DETAILED DESCRIPTION

[0016] The technical scheme in the utility model embodiment will be described clearly and completely below in combination with the drawings in the utility model embodiment.

[0017] Refer to Figs. 1-3The utility model discloses a punch -cutting die of automobile exhaust system end cover, including base 1, the upper end fixed connection of base 1 has two first support plate 2 corresponding left and right arrangement, the end of mutual approach of two first support plate 2 is rotatably connected with rotating lever 3, the common fixed connection of between two rotating lever 3 has U -shaped frame 4, the upper end of U -shaped frame 4 is equipped with the telescopic cylinder 5 of output end downward, the telescopic end fixed connection of telescopic cylinder 5 has upper die plate 6, the lower end fixed connection of upper die plate 6 has a plurality of punch rod 7, the common fixed connection of between the left and right inner wall of U -shaped frame 4 has limit plate 8, a plurality of punch rod 7 all through limit plate 8 and with its sliding connection, through the telescopic end of telescopic cylinder 5 drop, drive upper die plate 6 press down, drive a plurality of punch rod 7 press down and carry out punch drilling processing, the upper end fixed connection of base 1 has two second support plate 9 corresponding front and rear arrangement, the end of mutual approach of two second support plate 9 is rotatably connected with rotating disc 10, the end of mutual approach of two rotating disc 10 is equipped with pneumatic clamp 11, the front end fixed mounting of second support plate 9 in front has the first motor 12 of drive rotating disc 10 in front is located, two pneumatic clamps 11 are all inside support type clamp, through two pneumatic clamps 11 from the both ends of processing workpiece inside support clamping, through the first motor 12 drive corresponding rotating disc 10 rotates to rotate the processing workpiece being clamped, adjust processing position.

[0018] The right end fixed connection of first support plate 2 in right side has two third support plate 13 corresponding front and rear arrangement, the common rotatable connection of between two third support plate 13 has worm 14, the right end rotatable connection of first support plate 2 in right side has worm wheel 15, worm 14 is engaged with worm wheel 15, and worm wheel 15 is coaxially fixedly connected with the rotating lever 3 in right side, one end of one third support plate 13 away from the other third support plate 13 is fixedly installed with second motor 16 for driving worm 14 to rotate, worm 14 is driven to rotate by second motor 16, worm 14 drives the rotation of engaged worm wheel 15, rotating disc 3 is driven to rotate by worm wheel 15 to rotate U-shaped frame to adjust the orientation of telescopic end of telescopic cylinder 5, to adjust the angle of each punch rod 7, and worm 14 drives worm wheel 15 to rotate has self-locking, further improve the stability during stamping.

[0019] When the utility model is used, two pneumatic clamps 11 are used to clamp the processing workpiece from both ends, if the processing workpiece is conical, rotating lever 3 can be driven to rotate by worm wheel 15 to rotate U-shaped frame, to adjust the orientation of telescopic end of telescopic cylinder 5, and punch rod 7 is adjusted to the suitable punching angle of the processing workpiece for processing, to improve the processing quality, and worm 14 drives worm wheel 15 to rotate has self-locking, further improve the stability during stamping.

Claims

1. A punching and trimming die for an end cap of an automotive exhaust system, comprising a base (1), characterized in that, The upper end of the base (1) is fixedly connected to two first support plates (2) arranged on the left and right sides respectively. The two first support plates (2) are rotatably connected to the ends of the two first support plates (2) that are close to each other. A U-shaped frame (4) is fixedly connected between the two rotating rods (3). The upper end of the U-shaped frame (4) is provided with a telescopic cylinder (5) with the output end facing downward. The telescopic end of the telescopic cylinder (5) is fixedly connected to an upper template (6). The lower end of the upper template (6) is fixedly connected to several stamping rods (7). A limit plate (8) is fixedly connected between the left and right inner walls of the U-shaped frame (4). Several stamping rods (7) pass through the limit plate (8) and are slidably connected to it.

2. The punching and trimming die for an automotive exhaust system end cap according to claim 1, characterized in that, The upper end of the base (1) is fixedly connected to two second support plates (9) arranged in front and behind respectively. The two second support plates (9) are rotatably connected to a turntable (10) at one end close to each other. The two turntables (10) are provided with a pneumatic clamp (11) at one end close to each other. The front end of the second support plate (9) located in front is fixedly installed with a first motor (12) that drives the turntable (10) located in front to rotate.

3. The punching and trimming die for an automotive exhaust system end cap according to claim 2, characterized in that, The right end of the first support plate (2) located on the right side is fixedly connected to two third support plates (13) arranged in front and behind. The two third support plates (13) are rotatably connected to a worm (14). The right end of the first support plate (2) located on the right side is rotatably connected to a worm wheel (15). The worm (14) meshes with the worm wheel (15). The worm wheel (15) is coaxially fixedly connected to the rotating rod (3) located on the right side. A second motor (16) that drives the worm (14) to rotate is fixedly installed at the end of one of the third support plates (13) away from the other third support plate (13).

4. The punching and trimming die for an automotive exhaust system end cap according to claim 2, characterized in that, Both of the pneumatic clamps (11) are internal support type clamps.

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