CN202079177U

CN202079177U - Reducing jet pipe expansion composite mould

Info

Publication number: CN202079177U
Application number: CN201120179673XU
Authority: CN
Inventors: 王渝光
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-31
Filing date: 2011-05-31
Publication date: 2011-12-21
Anticipated expiration: 2021-05-31

Abstract

The utility model relates to a reducing jet pipe expansion composite mould, which comprises an expanding mould push rod, a demoulding push rod, a compression mould, an expanding mould base and a base. The reducing jet pipe expansion composite mould is characterized in that the upper portion of the expanding mould push rod is fixed onto the expanding mould base through a bushing, the lower portion of the expanding mould push rod is connected with an expanding press head, the center of the compression mould is provided with a tapered inner cavity, a conical head at the bottom end of the expanding press head can be inserted into the tapered inner cavity, a certain gap is reserved between the conical head and the tapered inner cavity, the upper portion of the compression mould is provided with a centering guide mould, the base is provided with a push rod sleeve, an ejector rod of the demoulding push rod penetrates into the push rod sleeve and is positioned at the bottom end of the tapered inner cavity of the compression mould, the central axes of the expanding mould push rod, the expanding press head, the conical head, the centering guide mould, the compression mould, the push rod sleeve and the demoulding push rod are superposed, and the expanding press head, the centering guide mould, the compression mould and the demoulding push rod of the composite mould can be detached and replaced as needed. When the composite mould is used for processing reducing jet pipes, casting flaw is avoided, product quality can be improved effectively, work efficiency is increased, and cost is reduced.

Description

Reducing jet pipe swelling pressure composite die

Technical field

The utility model relates to a kind of pipe fitting processing mold, specifically is a kind of reducing jet pipe swelling pressure composite die that is used for the pipe fitting of high-strength material is processed as the reducing jet pipe.

Background technology

The application of jet pipe is very extensive, for example often need carry out work and test with the high pressure cluster fluidic on military equipment, and the core parts that produce cluster fluidic are the reducing jet pipe.In the past, the reducing jet pipe adopts the method for compression casting to process, still, casting technique exists that working (machining) efficiency is low, machining accuracy is low, the post-processed operation is many, to defectives such as primary structural component casting difficulties, and cast member causes damage of product easily under the high-pressure work condition, even leads to a disaster.For this reason, need research to adopt new processing technology, and develop corresponding machining machine and tool and solve the problem that exists in the existing processing of reducing jet pipe.

Summary of the invention

For overcoming defective and the deficiency of reducing jet pipe in existing processing, and the processing method of a cold moudling reducing of employing swelling pressure composite die jet pipe, the utility model purpose realizes that with regard to providing a kind of new machining machine and tool promptly a kind of reducing jet pipe swelling pressure composite die is realized described method.

For realizing that the technical scheme that the utility model purpose adopts is such, it is a kind of swelling pressure composite die of reducing jet pipe, what comprise that top is connected with the upper cylinder piston dilates the demoulding push rod that mould push rod, bottom are connected with following oil cylinder piston, and compression molding, dilates die holder and base; It is characterized in that the described mould push rod top that dilates is fixed on by lining and dilates on the die holder, the bottom with dilate pressure head and be connected, described compression molding center has convergent shape inner chamber, and the conical nose that dilates the pressure head bottom can insert wherein, and possesses certain interval with convergent shape inner chamber; Described compression molding top has the centering guided mode, has pushing rod sleeve on base, and the push rod of described demoulding push rod pierces in this pushing rod sleeve, and is positioned at the convergent shape inner chamber bottom of compression molding; Describedly dilate the mould push rod, dilate pressure head, the axis of conical nose, centering guided mode, compression molding, pushing rod sleeve and demoulding push rod overlaps.

In the such scheme, comprise that also the described die holder that dilates is connected with base by the lead I; Described centering guided mode is connected with base by the lead II; The external diameter of the internal diameter of described pushing rod sleeve and described demoulding push rod equals the internal diameter of the convergent shape intracavity bottom of compression molding; The bar head that described demoulding push rod top has reduced, the bar head of described reduced is positioned at the bottom centre of convergent shape inner chamber, with the inwall formation annular recess of convergent shape intracavity bottom.

The course of work of the present utility model is such: promptly in the said structure device, promote descending when dilating the mould push rod by hydraulic press upper cylinder piston, the conical nose that dilates mould push rod lower end inserts in the processing pipe fitting, pipe fitting is felt relieved, dilating the mould push rod continues when descending, the head that dilates pressure head enlarges pipe fitting top endoporus distending, and push the convergent shape inner chamber at compression molding center gradually, the bottom is stuck in the formed annular recess of inwall of the bar head of demoulding push rod and convergent shape intracavity bottom, processing pipe fitting bottom is squeezed in convergent shape inner chamber, makes it become up big and down small reducer pipe fitting; When dilating pressure head will process pipe fitting and be urged to last plane with pushing rod sleeve and offset the time, it is up that the upper cylinder piston dilates the mould push rod with drive, demoulding push rod is by the oil cylinder piston promotion is up down, the push rod on demoulding push rod top inserts convergent shape inner chamber bottom, and the processing pipe fitting that is stuck in the annular recess is upwards ejected.

The effect that produces owing to described structure is conspicuous, the reducing jet pipe swelling pressure composite die that promptly the utility model proposes, large-diameter portion at reducer pipe divides employing the bloated technology that expands, and path partly adopts extrusion process, and two kinds of method synthesis are made compound swelling pressure mould.The part of mould wherein, promptly dilating pressure head, centering guided mode, compression molding and demoulding push rod is detachable the replacing, the user can keep in repair or change as required, processes satisfactory reducer pipe fitting.With this composite die processing reducing jet pipe, there is not casting flaw, not only fundamentally improved product quality, and can increase work efficiency, reduce cost.

Description of drawings

Fig. 1 is a structure cutaway view of the present utility model.

In the accompanying drawing: 1-dilates the mould push rod; The 2-lining; 3-dilates die holder; 4-lead I; 5-dilates pressure head; The 6-conical nose; 7-lead II; The 8-guided mode of feeling relieved; The 9-compression molding; 10-convergent shape inner chamber; The 11-base; The 12-pushing rod sleeve; 13-demoulding push rod.

The specific embodiment

Structure of the present utility model can further specify by the non-limiting embodiment that accompanying drawing provides.Referring to accompanying drawing, reducing jet pipe swelling pressure composite die among the figure comprises a kind of reducing jet pipe swelling pressure composite die, what comprise that top is connected with the upper cylinder piston dilates the demoulding push rod 13 that mould push rod 1, bottom are connected with following oil cylinder piston, and compression molding 9, dilates die holder 3 and base 11; It is characterized in that described mould push rod 1 top that dilates is fixed on by lining 2 and dilates on the die holder 3, the bottom with dilate pressure head 5 and be connected, described compression molding 9 centers have convergent shape inner chamber 10, and the conical nose 6 that dilates pressure head 5 bottoms can insert wherein, and possess certain interval with convergent shape inner chamber 10; Described compression molding 9 tops have centering guided mode 8, have pushing rod sleeve 12 on base, and the push rod of described demoulding push rod 13 pierces in this pushing rod sleeve 12, and is positioned at convergent shape inner chamber 10 bottoms of compression molding 9; Describedly dilate mould push rod 1, dilate pressure head 5, the axis of conical nose 6, centering guided mode 8, compression molding 9, pushing rod sleeve 12 and demoulding push rod 13 overlaps.

Above-mentioned with dilate that mould push rod 1 is connected to dilate pressure head 5 be detachable and install, make things convenient for the user to keep in repair as required or change.And the part of supporting with it mould, the guided mode 8 of promptly feeling relieved, compression molding 9 and demoulding push rod 13 also are detachable the replacings, the user can need repairing or changes according to processing.

Among the embodiment that accompanying drawing provides, the described die holder 3 that dilates is connected with base 11 by lead I 4; Described centering guided mode 8 is connected with base 11 by lead II 7.Guarantee to dilate mould push rod 1, dilate pressure head 5, the axis of conical nose 6, centering guided mode 8, compression molding 9, pushing rod sleeve 12 and demoulding push rod 13 overlaps.

The external diameter of the internal diameter of described pushing rod sleeve 12 and described demoulding push rod 13 equals the internal diameter of convergent shape inner chamber 10 bottoms of compression molding 9.

Further, the bar head that described demoulding push rod 13 tops have reduced, the bar head of described reduced is positioned at the bottom centre of convergent shape inner chamber 10, with the inwall formation annular recess of convergent shape inner chamber 10 bottoms.When the bottom of processing pipe fitting is pushed to convergent shape inner chamber 10 bottoms, and when being stuck in the annular recess, can make the pipe wall thickness of processing pipe fitting bottom even in the annular recess.

During use, start hydraulic press, it is descending that hydraulic press upper cylinder piston promotes to dilate mould push rod 1, the conical nose 6 that dilates mould push rod 1 lower end inserts in the processing pipe fitting, pipe fitting is felt relieved, dilating mould push rod 1 continues when descending, the head that dilates pressure head 5 enlarges pipe fitting top endoporus distending, and push the convergent shape inner chamber 10 at compression molding 9 centers gradually, the bottom is stuck in the formed annular recess of inwall of the bar head of demoulding push rod 13 and convergent shape inner chamber 10 bottoms, processing pipe fitting bottom is squeezed in convergent shape inner chamber 10, makes it become up big and down small reducer pipe fitting; When dilating pressure head 5 will process pipe fitting and be urged to last plane with pushing rod sleeve 12 and offset the time, it is up that the upper cylinder piston dilates mould push rod 1 with drive, demoulding push rod 13 is by the oil cylinder piston promotion is up down, the push rod on demoulding push rod 13 tops inserts convergent shape inner chamber 10 bottoms, and the processing pipe fitting that is stuck in the annular recess is upwards ejected.

Claims

1. reducing jet pipe swelling pressure composite die, what comprise that top is connected with the upper cylinder piston dilates the demoulding push rod (13) that mould push rod (1), bottom are connected with following oil cylinder piston, and compression molding (9), dilates die holder (3) and base (11); It is characterized in that described mould push rod (1) top that dilates is fixed on by lining (2) and dilates on the die holder (3), the bottom with dilate pressure head (5) and be connected, described compression molding (9) center has convergent shape inner chamber (10), the conical nose (6) that dilates pressure head (5) bottom can insert wherein, and possesses certain interval with convergent shape inner chamber (10); Described compression molding (9) top has centering guided mode (8), has pushing rod sleeve (12) on base (11), and the push rod of described demoulding push rod (13) pierces in this pushing rod sleeve (12), and is positioned at convergent shape inner chamber (10) bottom of compression molding (9); Describedly dilate mould push rod (1), dilate pressure head (5), the axis of conical nose (6), centering guided mode (8), compression molding (9), pushing rod sleeve (12) and demoulding push rod (13) overlaps.

2. reducing jet pipe swelling pressure composite die according to claim 1 is characterized in that the described die holder (3) that dilates is connected with base (11) by lead I (4).

3. reducing jet pipe swelling pressure composite die according to claim 1 is characterized in that described centering guided mode (8) is connected with base (11) by lead II (7).

4. reducing jet pipe swelling pressure composite die according to claim 1 is characterized in that the external diameter of the internal diameter of described pushing rod sleeve (12) and described demoulding push rod (13) equals the internal diameter of convergent shape inner chamber (10) bottom of compression molding (9).

5. according to claim 1 or 4 described reducing jet pipe swelling pressure composite dies, it is characterized in that the bar head that described demoulding push rod (13) top has reduced, the bar head of described reduced is positioned at the bottom centre of convergent shape inner chamber (10), with the inwall formation annular recess of convergent shape inner chamber (10) bottom.