CN216642254U

CN216642254U - Blank for processing connecting pipe of sub-muffler assembly

Info

Publication number: CN216642254U
Application number: CN202123408041.9U
Authority: CN
Inventors: 陶晟
Original assignee: Chongqing Jinjiang Zhixin Automobile Parts Co ltd
Current assignee: Chongqing Jinjiang Zhixin Automobile Parts Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-31
Anticipated expiration: 2031-12-31

Abstract

The utility model belongs to the technical field of automobile accessories, and particularly relates to a blank piece for processing a connecting pipe of an auxiliary silencer assembly, which comprises a pipe body and an auxiliary pipe section positioned at the outer end of a cutting line; the auxiliary pipe section comprises a gradually-flattened pipe section and a flat pipe section, and at least one water sealing flat pressing rib is arranged between the gradually-flattened pipe section and the flat pipe section; the flat pipe section is positioned at the outermost end of the auxiliary pipe section; when the number of the water sealing flat pressing ribs is two or more, an auxiliary water sealing flat pipe section is arranged between every two adjacent water sealing flat pressing ribs. The utility model reduces the input cost of raw materials, the manufacturing cost of the die and the processing and calibration difficulty.

Description

Blank for processing connecting pipe of sub-muffler assembly

Technical Field

The utility model belongs to the technical field of automobile accessories, and particularly relates to a blank for machining a connecting pipe of a sub-muffler assembly, which reduces the input cost of raw materials, the manufacturing cost of a die and the machining and calibration difficulty.

Background

The connecting pipe of the prior auxiliary muffler assembly is processed by a blank for processing the connecting pipe of the auxiliary muffler assembly. Specifically, water is sealed by pushing plugs through oil cylinders at two ends of a blank for processing a connecting pipe of the auxiliary silencer assembly, and the inner pipe is extruded at high pressure in high-pressure water in a pipe body of the blank for processing the connecting pipe of the auxiliary silencer assembly to achieve the designed pipe diameter. As the connecting pipe of the sub-muffler assembly is an irregular bent pipe, referring to the attached drawing 1, the bent pipe comprises a pipe body (4), an auxiliary pipe section (5) positioned at the outer end of the cutting line (3), and the auxiliary pipe section (5) comprises an extension pipe section (1) and an additional bending pipe section (2). Due to the fact that the angle difference of pipe orifices at two ends is large, the oil cylinder water sealing process is adopted, so that the pipe fitting section (1) must be designed and the bent pipe section (2) must be added, the two ends can be located at the relatively flat positions, water sealing processing is achieved, and finally the auxiliary silencer assembly connecting pipe required by design is obtained by cutting off the pipe fitting from the position of the cutting line (3). The existence of the pipe section (1) is lengthened and the bending pipe section (2) is added, namely, the increase of the length of the pipe and the bending also cause the increase of the cost of raw materials, the increase of the bending inevitably causes the complication of the structure of the die, and the manufacturing cost of the die is also increased. The overall increase in manufacturing costs. And the difference of the angles of the pipe orifices at the two ends is large, so that time and labor are wasted during calibration, and the processing and calibration difficulty is high.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a blank for processing the connecting pipe of the sub-muffler assembly, which reduces the input cost of raw materials, the manufacturing cost of a die and the processing and calibration difficulty.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a blank for processing a connecting pipe of a secondary muffler assembly comprises a pipe body and an auxiliary pipe section positioned at the outer end of a cutting line; wherein: the auxiliary pipe section comprises a gradually-flattened pipe section and a flat pipe section, and at least one water sealing flat pressing rib is arranged between the gradually-flattened pipe section and the flat pipe section; the flat pipe section is positioned at the outermost end of the auxiliary pipe section;

when the two or more water sealing flat pressing ribs are arranged, an auxiliary water sealing flat pipe section is arranged between every two adjacent water sealing flat pressing ribs.

Due to the structure, the input cost of raw materials is reduced, the manufacturing cost of the die is reduced, and the processing and calibration difficulty is reduced.

Drawings

FIG. 1 is a schematic diagram of a prior art structure of the present invention;

fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural diagram of another embodiment of the present invention.

In the figure: 1. lengthening the pipe section; 2. adding a bent pipe section; 3. cutting off the line; 4. a pipe body; 5. an auxiliary pipe section; 6. a gradually flattened tube section; 7. a flat tube section; 8. sealing water and flattening ribs; 9. auxiliary water sealing flat pipe section; 10. a pressure relief notch.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described in conjunction with the accompanying drawings and examples:

referring to fig. 2, the blank for processing the connecting pipe of the sub-muffler assembly comprises a pipe body 4 and an auxiliary pipe section 5 positioned at the outer end of a cutting line 3; the method is characterized in that: the auxiliary pipe section 5 comprises a gradually-flat pipe section 6 and a flat pipe section 7, and at least one water sealing flat pressing rib 8 is arranged between the gradually-flat pipe section 6 and the flat pipe section 7; the flat pipe section 7 is positioned at the outermost end of the auxiliary pipe section 5;

when the number of the water sealing flat pressing ribs 8 is two or more, an auxiliary water sealing flat pipe section 9 is arranged between every two adjacent water sealing flat pressing ribs 8. In this embodiment, when realizing that the inner tube reaches design pipe diameter technology through pouring into high-pressure water in the high pressure extrusion inner tube, only need an hydro-cylinder to promote the end cap and seal water, hardly need unnecessary calibration time, and extension pipe fitting section 1 no longer need with increase bending type pipeline section 2, has reduced the consumptive material by a wide margin, has reduced raw and other materials input cost, has reduced the mould cost of manufacture and has reduced the processing calibration degree of difficulty.

In order to ensure the water-sealing property of the water-sealing flat bead 8, in the above embodiment, preferably: the number of the water sealing flat pressing ribs 8 is two.

Referring to fig. 3, in order to ensure that the auxiliary pipe section 5 is flattened and processed into the gradually-flattened pipe section 6, the flattened pipe section 7 and the water-sealing flat rib 8, the outermost stress concentration of the auxiliary pipe section 5 tears the pipe body 4, in the above embodiment, preferentially: the side wall of the flat pipe section 7 is provided with a pressure relief notch 10, and the pressure relief notch 10 is communicated with the outermost end of the flat pipe section 7.

The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details of the utility model in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the utility model may be embodied in practice with the teachings of the utility model. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. A blank for processing a connecting pipe of a sub-muffler assembly comprises a pipe body (4) and an auxiliary pipe section (5) positioned at the outer end of a cutting line (3); the method is characterized in that: the auxiliary pipe section (5) comprises a gradually flat pipe section (6) and a flat pipe section (7), and at least one water sealing flat pressing rib (8) is arranged between the gradually flat pipe section (6) and the flat pipe section (7); the flat pipe section (7) is positioned at the outermost end of the auxiliary pipe section (5);

when the two or more water sealing flat pressing ribs (8) are arranged, an auxiliary water sealing flat pipe section (9) is arranged between every two adjacent water sealing flat pressing ribs (8).

2. The blank for processing the connecting pipe of the sub-muffler assembly as set forth in claim 1, wherein: the number of the water sealing flat pressing ribs (8) is two.

3. The blank for processing the connecting pipe of the sub-muffler assembly as set forth in claim 1, wherein: and a pressure relief notch (10) is arranged on the side wall of the flat pipe section (7), and the pressure relief notch (10) is communicated with the outermost end of the flat pipe section (7).