Stretching device for shell of automobile silencer

A technology of automobile muffler and stretching device, which is applied in the direction of feeding device, positioning device, storage device, etc., and can solve the problem of lack of a device for making the main body of the muffler shell

Inactive Publication Date: 2020-04-14
浙江加文汽车零部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a stretching device for an automobile muffler shell, which is used to solve the problem of lack of a device for making the main body of the muffler shell in the prior art described in the background art

Method used

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  • Stretching device for shell of automobile silencer
  • Stretching device for shell of automobile silencer

Examples

Experimental program
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Embodiment Construction

[0017] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0018] Examples, such as [ Figure 1-2 ], in this embodiment, a stretching device for an automobile muffler shell, including a bottom plate 10, a lower pressing plate 20 is arranged on the bottom plate 10, and a lower pressing power device 40 is also arranged on the bottom plate 10, the The pressing power device 40 is provided with an upper pressing plate 30, and the pressing power device 40 is also provided with two heating devices 50; the heating device 50 includes a first cylinder 51 and a second cylinder 54, and the first cylinder The piston rod of 51 is provided with a positioning plate 52, and the positioning plate 52 is fixedly connected with the fan-shaped electric heating plate 53. The piston rod of the second cylinder 54 is provided with a connecting plate 55, and the connecting plate 55 includes a The first plate body 551 on the p...

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Abstract

The invention discloses a stretching device for a shell of an automobile silencer and relates to the technical field of manufacturing of automobile silencers. The stretching device comprises a bottomplate, wherein a lower pressing plate is arranged on the bottom plate, a lower pressing power device is also arranged on the bottom plate, an upper pressing plate is arranged on the lower pressing power device, and two heating devices are also arranged on the lower pressing power device; each heating device comprises a first cylinder and a second cylinder; positioning plates are arranged on pistonrods of the first cylinders, and are fixedly connected with fan-shaped electric heating plates; connecting plates are arranged on piston rods of the second cylinders, and comprise first plate bodiesarranged on the corresponding piston rods of the second cylinders; second plate bodies are rotationally arranged at the ends, away from the positioning plates, of the electric heating plates; threadedholes are formed in the first plate bodies and the second plate bodies, and the first plate bodies and the second plate bodies are mutually fixed by screws connected with the threaded holes. The stretching device has the advantages of being convenient to use, good in stretching effect and the like.

Description

technical field [0001] The invention relates to the technical field of production and processing of automobile mufflers, in particular to a stretching device for the shell of the automobile muffler. Background technique [0002] The automobile muffler is mainly used to reduce the noise generated by the engine of the motor vehicle. The principle is that the automobile exhaust pipe is composed of two pipes with different lengths. The length difference is equal to half of the wavelength of the sound waves emitted by the car, so that the two rows of sound waves interfere with each other and cancel each other out when they are superimposed, reducing the sound intensity and reducing the transmitted sound, thereby achieving the effect of noise reduction. [0003] Most of the shells of automobile mufflers are composed of a hollow oval shell body and two flat shells. The existing oval shells are made by assembling and welding. This method makes the shell of the car muffler The servi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/02B21D37/16B21D43/00
CPCB21D22/025B21D37/16B21D43/003
Inventor 刘向东
Owner 浙江加文汽车零部件有限公司
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