CN202571004U

CN202571004U - Bulging die for pipeline piece

Info

Publication number: CN202571004U
Application number: CN 201220153499
Authority: CN
Inventors: 王修保
Original assignee: Henan Aerospace Precision Machining Co Ltd
Current assignee: Henan Aerospace Precision Machining Co Ltd
Priority date: 2012-04-12
Filing date: 2012-04-12
Publication date: 2012-12-05
Anticipated expiration: 2022-04-12

Abstract

The utility model relates to a bulging die for a pipeline piece. The bulging die is used for machining an annular bump on the periphery of the open end of a movable blind hole joint of a pipeline piece; when the bulging die is used, a positioning shaft head is inserted into a blind hole formed in the movable blind hole joint; the end surface of the open end of the movable blind hole joint is extruded by an upper male die so that the annular bump is formed between an upper male die and a pipe joint on the periphery of the open end of the movable blind hole joint; and moreover, a cushion block which makes the open end of the movable blind hole joint extend out from one end of the pipe joint is arranged in the pipe joint, so that the annular bump on the periphery of the open end of the movable blind hole joint can be machined by an operator through the stamping of the upper male die; and therefore, the die can be operated by general machining staff, and the bulging machining operation of the pipeline piece is simple.

Description

A kind of expanding die of pipeline fitting

Technical field

The utility model is involved in the expanding die of a kind of pipeline fitting of using in the shaping processing of pipeline fitting.

Background technology

At present; Has a kind of pipeline fitting in the prior art; As shown in Figure 1, this pipeline fitting mainly is made up of pipe joint with nut structure and the blind hole joint that moves about with blind hole structure, wherein; The openend of the blind hole of moving about joint stretches out from an end of pipe joint; And on the periphery of the external part of the blind hole joint that moves about, convex with an annular protrusion, this pipeline fitting has obtained extensive use owing to have good aeration, logical liquid, pressure-bearing, connection, sealing and locking effect in fields such as Aeronautics and Astronautics, engines.Therefore in relevant criterion, all unimpeded, pressure-bearing safety to the ventilation of this pipeline fitting, logical liquid, connect firm, sealing is tight, anti-loosening property, safe and reliable etc. made special requirement.This just requires sealing characteristics, connecting function and the size of this pipeline fitting all must be controlled within certain scope, so the bulging processing method of this pipeline fitting oral area seems particularly important.Generally; Pipeline fitting to be processed (as shown in Figure 2) rolls the annular protrusion that just can process on the blind hole joint that moves about through turner; But because the pipeline fitting after the processing requires to have certain free movement and bulging size scope; Therefore it is low that the method that adopts the turner spreading to process pipeline fitting has working (machining) efficiency, complicated operation, the high and high shortcoming of percent defective of cost; And it is big that the pipeline fitting that processes has mismachining tolerance, the free movement of processing back pipeline fitting be difficult to reach standard-required with cun the uniformity problem that can't guarantee.

The utility model content

The utility model provides a kind of expanding die of pipeline fitting, be intended to solve the big and low problem of working (machining) efficiency of processing mismachining tolerance of this pipeline fitting in the prior art.

The technical scheme of the expanding die of this pipeline fitting is following:

A kind of expanding die of pipeline fitting; Comprise punch on the openend column that is used to push the blind hole joint that moves about that dilates pipeline fitting to be processed; And the cushion block that is used to place the openend that makes the blind hole joint that moves about of pipeline fitting in the screwed pipe joint of pipeline fitting to be processed to stretch out from the end of pipe joint; Said lower end of going up punch is provided with to be used to be plugged on moves about in the blind hole of blind hole joint and the location spindle nose of end roof pressure on the blind hole bottom surface, and said location spindle nose is wholely set or is fixedly connected with last punch.

The said punch of going up offers in spindle nose placement, location and makes the side face of location spindle nose be in the mounting groove in it, and the outer peripheral face of the cell wall of said mounting groove and location spindle nose surrounds and is used for the annular groove of joining with the openend card of the blind hole joint that moves about of pipeline fitting.

Said location spindle nose is plugged on said going up in the blind hole of offering on the punch, and is fixedly connected with last punch through the said screw that radially wears on the perisporium of punch of going up.

Said screw has at least two and evenly be laid on the said circumference of going up punch.

The bottom of said cushion block is provided with and is used for cushion block is fixed on the base on the lathe.

Annular protrusion on the periphery of the openend of the blind hole joint that moves about of the utility model employing expanding die processing pipeline fitting; In use; In the blind hole that location spindle nose inserting is offered on the blind hole joint that moves about; Last punch makes the move about periphery of openend of blind hole joint between last punch and pipe joint, annular protrusion occur through the move about end face of blind hole joint openend of extruding; And in pipe joint, be provided with and make the cushion block that the openend of blind hole joint stretches out from an end of pipe joint that moves about; Therefore, the operator can just can process the annular protrusion on the blind hole joint openend periphery of moving about through the punching press of last punch, thereby makes general processing personnel just can operate this mould; Just this mould makes that the operation of the annular protrusion on the periphery of openend of the blind hole joint that moves about of pipeline fitting is simpler; Make that the working (machining) efficiency of pipeline fitting is higher, and because the operator can regulate the length that the openend of the blind hole joint that moves about stretches out from the end of pipe joint through the cushion block of selecting different-thickness, so this mould also has the characteristics of accurate positioning.Simultaneously, because the assembly relation of each part of this mould is simple, simple in structure so this mould also has characteristics simple in structure, with low cost and that degree of safety is high.

Description of drawings

Fig. 1 is the structural representation of pipeline fitting finished product;

Fig. 2 is the structural representation of pipeline fitting to be processed;

Fig. 3 is the structural representation of the embodiment of the utility model;

Fig. 4 is a structural representation of going up punch among Fig. 3;

Fig. 5 is the structural representation of cushion block and base among Fig. 3.

The specific embodiment

The embodiment of the expanding die of the pipeline fitting of the utility model: shown in Figure 1; Be a kind of pipeline fitting 1 finished product structural representation; This pipeline fitting 1 mainly is made up of the pipe joint 101 and the blind hole joint 102 that moves about, and wherein, offers blind hole 111 on the blind hole of the moving about joint 101; And the openend of the blind hole of moving about joint 101 stretches out from an end opening of pipe joint 102; Simultaneously, the opening both sides in pipe joint 102 on the periphery of the blind hole of moving about joint 101 all convex with annular protrusion 112, and are in the internal diameter of the external diameter of the annular protrusion 112 in the pipe joint 102 less than pipe joint 102 small ends.

During annular protrusion 112 on the periphery of the blind hole joint 101 that moves about of this pipeline fitting 1 of processing; The utility model is gone up the annular protrusion 112 of the blind hole joint 101 that moves about of bulging processing pipeline fitting 1 at pipeline fitting to be processed 2 (as shown in Figure 2) through expanding die; Make the working (machining) efficiency and the precision of annular protrusion 112 improve, operation easier reduces.

Extremely shown in Figure 5 like Fig. 3; This expanding die mainly is made up of punch on the column 3, location spindle nose 4, cushion block 5 and base 6; Wherein, Location spindle nose 4 is plugged in the blind hole of the lower end of punch 3 offering, and fixes through the screw that radially wears 301 of last punch 3, and this screw 301 has two and be evenly distributed on the circumference of punch 3; Cushion block 5 is in inner the move about openend of blind hole joints 201 of making of the pipe joint 202 that can be placed on pipeline fitting 2 to be processed and stretches out from an end of pipe joint 202; Simultaneously; Be provided with in the bottom of cushion block 5 and be used for cushion block 5 is fixed on the base 6 on the lathe; In use; One end of location spindle nose 4 is plugged in the blind hole 211 of the blind hole joint 201 that moves about of pipeline fitting 2 to be processed, makes the blind hole joint 201 that moves about be clamped between location spindle nose 4 and the cushion block 5, and the downward punching press through last punch 3 makes the move about openend of blind hole joint 201 outwards expand then; Thereby process the annular protrusion 112 on the periphery of the blind hole joint 101 that moves about; And the openend perisporium of blind hole joint 201 is clamped between the periphery of openend inwall and location spindle nose 4 of pipe joint 202 owing to move about, thereby has avoided when the downward punching press of last punch 3, and the non-processing part appearance of the blind hole of moving about joint 201 is out of shape.

Simultaneously; The openend of last punch 3 has makes the outer peripheral face of location spindle nose 4 be in the mounting groove in it; The outer peripheral face of the cell wall of mounting groove and location spindle nose 4 has surrounded one and has been used for the annular groove 302 of joining with the openend card of the blind hole joint that moves about; Thereby moving radially of the blind hole joint 201 of having avoided in punching course, moving about makes that the bulging processing of annular protrusion 112 is more accurate.

In the above-described embodiments; The location spindle nose through screw be fixed on punch blind hole in; In other embodiments, the location spindle nose also can be fixed on the punch, for example through other fixed connection modes; The screw thread that processing is used on the hole wall of periphery of locating spindle nose and blind hole, thus realize that the location spindle nose is fixed on the punch through the mode that is threaded; Perhaps, will locate spindle nose directly is welded on the punch.In addition, the location spindle nose also can be wholely set with last punch, and just going up punch is the different piece of a multidiameter with the location spindle nose, and big end is last punch, and small end is the location spindle nose.

In the above-described embodiments; Cushion block is fixed on the lathe through base; In other embodiments; Cushion block also can directly be placed on the platform of working region of press machine, then pipeline fitting to be processed is placed on correspondence position, and press machine just can be processed the annular protrusion on the blind hole joint periphery of moving about of pipeline fitting.

Claims

1. the expanding die of a pipeline fitting; It is characterized in that: comprise punch on the openend column that is used to push the blind hole joint that moves about that dilates pipeline fitting to be processed; And the cushion block that is used to place the openend that makes the blind hole joint that moves about of pipeline fitting in the screwed pipe joint of pipeline fitting to be processed to stretch out from the end of pipe joint; Said lower end of going up punch is provided with to be used to be plugged on moves about in the blind hole of blind hole joint and the location spindle nose of end roof pressure on the blind hole bottom surface, and said location spindle nose is wholely set or is fixedly connected with last punch.

2. the expanding die of pipeline fitting according to claim 1; It is characterized in that: the said punch of going up offers in spindle nose placement, location and makes the side face of location spindle nose be in the mounting groove in it, and the outer peripheral face of the cell wall of said mounting groove and location spindle nose surrounds and is used for the annular groove of joining with the openend card of the blind hole joint that moves about of pipeline fitting.

3. the expanding die of pipeline fitting according to claim 1 is characterized in that: said location spindle nose is plugged on said going up in the blind hole of offering on the punch, and is fixedly connected with last punch through the said screw that radially wears on the perisporium of punch of going up.

4. the expanding die of pipeline fitting according to claim 3 is characterized in that: said screw has at least two and evenly be laid on the said circumference of going up punch.

5. according to the expanding die of any described pipeline fitting of claim 1 to 4, it is characterized in that: the bottom of said cushion block is provided with and is used for cushion block is fixed on the base on the lathe.