CN210412226U

CN210412226U - Pipe contracting mold for thin-wall pipe fitting

Info

Publication number: CN210412226U
Application number: CN201920757227.9U
Authority: CN
Inventors: 周明; 段炳龙; 镇海龙
Original assignee: Jingzhou Taisheng Ronghe General Machinery Co Ltd
Current assignee: Jingzhou Taisheng Ronghe General Machinery Co Ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-04-28
Anticipated expiration: 2029-05-23

Abstract

The utility model relates to a thin-walled tube's draw mould, it include the lower mould that is used for reducing the thin-walled tube external diameter with be used for with thin-walled tube impresses last mould in the lower mould, the lower mould is the tubular structure of vertical setting, lower mould hypomere pipe diameter is less than the upper segment pipe diameter. The utility model discloses convenient to use, simple structure, the cost of manufacture is low, and the preparation required precision is lower, has solved behind the thin-walled tube spare draw with draw preceding decentraction's problem, can prevent simultaneously that thin-walled tube spare from damaging in process of production, can make a thin-walled tube spare have different pipe diameters simultaneously.

Description

Pipe contracting mold for thin-wall pipe fitting

Technical Field

The utility model relates to a draw mould, concretely relates to thin-walled tube's draw mould belongs to automobile parts processing field.

Background

During the processing and production process of the thin-wall pipe fitting, the pipe orifice is deformed and damaged due to various reasons, so that the thin-wall pipe fitting is damaged. The production process is complex, the axis of the thin-wall pipe after pipe contraction is not in line with that before pipe contraction, and the thin-wall pipe with different pipe diameters cannot be produced.

SUMMERY OF THE UTILITY MODEL

For solving prior art not enough, the utility model provides a thin-wall pipe's draw mould, this mould convenient to use, simple structure, the cost of manufacture is low, and the preparation required precision is lower, has solved behind the thin-wall pipe draw with draw preceding decentraction's problem, can prevent simultaneously that thin-wall pipe from damaging in process of production, can make a thin-wall pipe have different pipe diameters simultaneously.

The utility model aims at realizing through the following technical scheme:

the pipe reducing die comprises a lower die and an upper die, wherein the lower die is used for reducing the outer diameter of the thin-wall pipe, the upper die is used for pressing the thin-wall pipe into the lower die, the lower die is of a vertically arranged tubular structure, and the pipe diameter of the lower section of the lower die is smaller than that of the upper section of the lower die. Based on the technical scheme, the thin-wall pipe fitting is arranged at the upper section in the lower die, the upper die is pressed into the lower die through the oil press, and the thin-wall pipe fitting is simultaneously driven to be pressed into the lower section of the lower die so that the pipe diameter of the thin-wall pipe fitting is reduced.

Further, the lower die comprises a die pipe and a die seat which are sequentially communicated, two ends of the die seat are opened and communicated, the die pipe is detachably connected with the die seat, and the inner diameter of the die seat is smaller than the inner diameter of the die pipe.

Based on the technical scheme, the upper die drives the thin-wall pipe fitting to be pressed into the die seat through the oil press, so that the diameter of the lower pipe diameter of the thin-wall pipe fitting is reduced, the die seat can also be used for supporting the whole pipe reducing die, and the whole device is stable.

Further, the lower die further comprises a lower die pipe, the lower die pipe is sleeved on the die pipe, the lower end of the lower die pipe is clamped with the die seat, and the pipe diameter of the lower die pipe is larger than the inner diameter of the die seat. .

Based on the technical scheme, the thin-wall pipe fitting is placed in the lower die pipe, and the thin-wall pipe fitting enters the die seat through the downward pressing of the upper die, so that the diameter of the thin-wall pipe fitting is reduced.

Furthermore, the lower die further comprises at least one reducing pipe seat, the two ends of the reducing pipe seat are opened and communicated, the outer surface of each reducing pipe seat is attached to the inner surface of the die pipe, the reducing pipe seat at the uppermost end is detachably connected with the lower die pipe, the reducing pipe seat at the lowermost end and the die seat are integrally arranged, the reducing pipe seats are detachably connected, and the inner diameters of the lower die pipe, the reducing pipe seats and the die seat are sequentially reduced from top to bottom.

Based on the technical scheme, the plurality of reducing seats are arranged to enable the produced thin-wall pipe fitting to have different pipe diameters from top to bottom, and the plurality of reducing seats can be detachably arranged to facilitate taking out and cleaning and correspondingly adjust the reducing seats according to the pipe diameter requirements of the produced thin-wall pipe fitting.

Furthermore, a hook is arranged on the lower die pipe and hung on the die pipe.

Based on the technical scheme, the hook can better take down the lower die pipe for replacement, and the lower die pipe is also conveniently installed on the lower die.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the mould is convenient to use, simple in structure, low in manufacturing cost and low in manufacturing precision requirement, solves the problem that the thin-wall pipe fitting is not concentric after being contracted and before being contracted, can prevent the thin-wall pipe fitting from being damaged in the production process, and can enable the thin-wall pipe fitting to have different pipe diameters.

Drawings

The specific structure of the present invention is given by the following embodiments and the accompanying drawings.

Fig. 1 is a schematic view of the whole section structure of the pipe shrinking mold for thin-wall pipes according to the present invention.

In fig. 1, the list of components represented by the various reference numbers is as follows:

1. the device comprises a lower die, 11, a die pipe, 12, a die seat, 13, a lower die pipe, 131, a hook, 14, a pipe contracting seat, 2 and an upper die.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the illustrated embodiments are provided to explain the present invention and not to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Examples

As shown in fig. 1, a pipe reducing mold for a thin-wall pipe comprises a lower mold 1 for reducing the outer diameter of the thin-wall pipe and an upper mold 2 for pressing the thin-wall pipe into the lower mold 1, wherein the lower mold 1 is of a vertically arranged tubular structure, and the pipe diameter of the lower section of the lower mold 1 is smaller than that of the upper section.

It can be understood that the outer diameter of the upper die 2 is slightly smaller than the pipe diameter of the lower end of the lower die 1, and the gap between the upper die and the lower die is used for placing the thin-wall pipe fitting.

Further, the lower die 1 comprises a die tube 11 and a die seat 12 which are sequentially communicated, two ends of the die seat 12 are open and communicated, the die tube 11 is detachably connected with the die seat 12, and the inner diameter of the die seat 12 is smaller than the inner diameter of the die tube 11.

In one technical scheme, the outer diameter of the upper section of the upper die 2 is matched with the inner diameter of the die tube 11, and the outer diameter of the lower section of the upper die 2 is matched with the inner diameter of the die seat 12 and is slightly smaller than the inner diameter, so that the thin-wall tube can be accommodated.

In another technical solution, the outer diameter of the upper die 2 matches the inner diameter of the die holder 12, and a certain gap is formed between the outer diameter of the upper die 2 and the inner diameter of the die holder 12 for accommodating the thin-walled tube.

Optionally, the die tube 11 is clamped to the die holder 12.

Optionally, an annular groove is formed in the mold base 12, an internal thread is formed in the groove, the mold tube 11 is provided with a matched external thread, the mold base 12 is in threaded connection with the mold tube 11, and the inner diameter of the portion, located inside the mold tube 11, of the mold base 12 is matched with the diameter of the lower section of the upper mold 2.

Optionally, an annular groove is formed in the mold base 12, and the mold tube 11 is clamped in the groove of the mold base 12 to achieve detachable connection.

Alternatively, the portion of the die holder 12 located within the die tube 11 may be based on

Further, lower mould 1 still includes lower mould pipe 13, lower mould pipe 13 cover is established on mould pipe 11, lower mould pipe 13 lower extreme joint mould seat 12, the pipe diameter of lower mould pipe 13 is greater than the inside diameter of mould seat 12.

It can be understood that the outer surface of the lower mold pipe 13 is closely attached to the inner surface of the mold pipe 11, and the close attachment can prevent the mold from being misplaced to affect the reducing pipe of the thin-walled pipe.

Further, the lower die 1 further comprises at least one reducing pipe seat 14, two ends of the reducing pipe seat 14 are opened and communicated, the outer surface of each reducing pipe seat 14 is attached to the inner surface of the die pipe 11, the reducing pipe seat 14 at the uppermost end is detachably connected with the lower die pipe 13, the reducing pipe seat 14 at the lowermost end is integrally arranged with the die seat 12, the reducing pipe seats 14 are detachably connected, the inner diameters of the lower die pipe 13, the reducing pipe seats 14 and the die seat 12 are sequentially reduced from top to bottom,

optionally, the outer diameter of the upper die 2 from top to bottom sequentially matches the inner diameters of the lower die tube 13, the pipe seat 14 and the die seat 12.

Optionally, the outer diameter of the upper die 2 is matched with the inner diameter of the die holder 12.

Further, a hook 131 is arranged on the lower mold tube 13, and the hook 131 is hung on the mold tube 11.

The working principle is as follows: will the utility model discloses the dress is on 100 tons of hydraulic press, mould seat 12 is placed directly over the hydraulic press lower cylinder, and the thin-walled tube spare that will need the draw tube is placed in lower mould pipe 13, starts the hydraulic press and pushes down and will go up mould 2 and press into lower mould pipe 13, go up mould 2 and thin-walled tube spare's lower extreme and get into the draw tube seat 14 and realize the draw tube in mould seat 12 even, push down the completion after, the hydraulic press lower cylinder will go up mould 2 and thin-walled tube spare ejecting can from lower mould 1.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The pipe reducing die for the thin-wall pipe fitting is characterized by comprising a lower die (1) and an upper die (2), wherein the lower die (1) is used for reducing the outer diameter of the thin-wall pipe fitting, the upper die (2) is used for pressing the thin-wall pipe fitting into the lower die (1), the lower die (1) is of a vertically arranged tubular structure, and the pipe diameter of the lower section of the lower die (1) is smaller than that of the upper section.

2. A pipe reducing die for thin-wall pipe fittings according to claim 1, wherein the lower die (1) comprises a die tube (11) and a die seat (12) which are communicated in sequence, the die seat (12) is open at two ends and communicated, the die tube (11) is detachably connected with the die seat (12), and the inner diameter of the die seat (12) is smaller than the inner diameter of the die tube (11).

3. A pipe reducing die for a thin-walled pipe as claimed in claim 2, wherein said lower die (1) further comprises a lower die pipe (13), said lower die pipe (13) is sleeved on said die pipe (11), the lower end of said lower die pipe (13) is clamped to said die holder (12), and the diameter of said lower die pipe (13) is larger than the inner diameter of said die holder (12).

4. A pipe reducing die for thin-walled pipe according to claim 3, wherein said lower die (1) further comprises at least one reducing seat (14), said reducing seat (14) is open at both ends and is connected, the outer surface of each reducing seat (14) is attached to the inner surface of said die tube (11), said reducing seat (14) at the uppermost end is detachably connected to said lower die tube (13), said reducing seat (14) at the lowermost end is integrally provided with said die seat (12), each reducing seat (14) is detachably connected to each other, and the inner diameters of said lower die tube (13), each reducing seat (14) and said die seat (12) are sequentially reduced from top to bottom.

5. A pipe reducing die for a thin-walled pipe as claimed in any one of claims 3 to 4, wherein a hook (131) is provided on said lower die tube (13), and said hook (131) is hung on said die tube (11).