CN103495841A - Method for machining rudder ball top plate - Google Patents

Abstract

The invention discloses a method for machining a rudder ball top plate. The method comprises the steps that a 115mm deep and R561mm concave ball face is machined on a steel plate and is fixed on a steel plate to be used as a lower die; a 111mm high and R546mm convex ball face is machined on a steel plate and is provided with a lug plate so as to form an upper die; the upper die and the lower die are quenched, so that the rigidity of the upper die and the rigidity of the lower die are reinforced, the upper die and the lower die are fixed on an oil press, and the position of the upper die and the position of the lower die are adjusted; a steel plate 2mm thicker than an original plate is selected and cut into a phi 681mm circular cake, the circular cake is used as a blank of the rudder ball top plate, the blank is heated before forging, the blank is moved to a die of the oil press, the rudder ball top plate is located, and the rudder ball top plate is obtained as long as going through one-time forming through pressure of the oil press. The method for machining the rudder ball top plate is few in steps, easy to operate, and capable of machining and forming the rudder ball tope plate at one time, meets utilization requirements, and has good practicality.

Description

A kind of processing method of rudder ball top board

Technical field

The present invention relates to technical field of ships, be specifically related to a kind of processing method of rudder ball top board.

Background technology

At present, traditional hull Double curve degree outside plate processing method is that the process data provided according to design department is made model or sample case, the mode that adopts the firer to process completes, and the top board of rudder ball is more special, almost spherical, according to traditional firer's processing method, be can't reach designing requirement at all.Therefore, must adopt the upper/lower die compacting, one-shot forming could really reach designing requirement.

Summary of the invention

Goal of the invention: for the deficiencies in the prior art, the purpose of this invention is to provide a kind of processing method of rudder ball top board, can, to the one-shot forming of rudder ball top board, meet user demand.

Technical scheme: in order to realize the foregoing invention purpose, the technical solution used in the present invention is as follows:

A kind of processing method of rudder ball top board comprises the following steps:

1) get the steel plate of a thickness 130mm, cut into φ 700mm cake, to lathe, be processed into the concave spherical surface of degree of depth 115mm, R561mm, then be fixed on the steel plate thick, that length and width is 25mm * 900mm * 900mm as counterdie;

2) get the steel plate of a thickness 130mm again, cut into the cake of φ 660mm, to lathe, be processed into height 111mm, the protruding sphere of R546mm, load onto otic placode as patrix;

3) upper and lower mould is fixed on hydraulic press, and the good upper and lower mould of adjustment position;

4) select to cut into the blank of the cake of φ 681mm as rudder ball top board than the steel plate of former thickness of slab 2mm, first blank is heated before forging and stamping, then move on on the mould of hydraulic press, rudder ball top board is had good positioning, the pressure one-shot forming through hydraulic press, get final product.

Beneficial effect: compared with prior art, the processing method of rudder ball top board of the present invention, step is few, and processing ease can meet user demand to the moulding of rudder ball top board time processing, has good practicality.

The accompanying drawing explanation

Fig. 1 is the structural representation of the processing mold of rudder ball top board.

The specific embodiment

Below in conjunction with concrete accompanying drawing, the present invention is described further.

As shown in Figure 1, the processing method of rudder ball top board comprises the following steps:

1) get the steel plate of a thickness 130mm, cut into φ 700mm cake, be processed into the concave spherical surface 2 of degree of depth 115mm, R561mm to lathe, then be fixed on the steel plate 1 thick, that length and width is 25mm * 900mm * 900mm as counterdie;

2) get the steel plate of a thickness 130mm again, cut into the cake of φ 660mm, to lathe, be processed into height 111mm, the protruding sphere 3 of R546mm, load onto otic placode 4 as patrix;

3) upper and lower mould is fixed on hydraulic press, and the good upper and lower mould of adjustment position;

4) select to cut into the blank of the cake of φ 681mm as rudder ball top board than the steel plate of former thickness of slab 2mm, first blank is heated to (burning red getting final product) before forging and stamping, move on to again on the mould of hydraulic press, rudder ball top board is had good positioning, pressure one-shot forming through hydraulic press, the line style that had so both guaranteed rudder ball top board is accurate, has improved again production efficiency.

Claims (1)

1. the processing method of a rudder ball top board, is characterized in that, comprises the following steps:

1) get the steel plate of a thickness 130mm, cut into φ 700mm cake, to lathe, be processed into the concave spherical surface of degree of depth 115mm, R561mm, then be fixed on the steel plate thick, that length and width is 25mm * 900mm * 900mm as counterdie;

2) get the steel plate of a thickness 130mm again, cut into the cake of φ 660mm, to lathe, be processed into height 111mm, the protruding sphere of R546mm, load onto otic placode as patrix;

3) upper and lower die quenching is added to strong hardness, be fixed on hydraulic press, and the good upper and lower mould of adjustment position;

4) select to cut into the blank of the cake of φ 681mm as rudder ball top board than the steel plate of former thickness of slab 2mm, first blank is heated before forging and stamping, then move on on the mould of hydraulic press, rudder ball top board is had good positioning, the pressure one-shot forming through hydraulic press, get final product.

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