CN201353590Y

CN201353590Y - Shaping machine for hollow screw pump rotor with even wall thickness

Info

Publication number: CN201353590Y
Application number: CNU200920037551XU
Authority: CN
Inventors: 褚楔军
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-11
Filing date: 2009-02-11
Publication date: 2009-12-02
Anticipated expiration: 2019-02-11

Abstract

The utility model relates to a shaping machine for hollow screw pump rotor with even wall thickness, which is characterized by comprising a frame, an inner die and an outer die, wherein the outer shape of the inner die is in a taper shape, an axial through hole is manufactured on the inner die, the shape of the inner wall of the through hole is a screw shape outside a screw for forming a die cavity for manufacturing screw pump rotors, two ends of the inner die are fixed on the frame through screws, the outer die is in a taper ring shape and is sleeved outside the inner die, the inner wall of the outer die is tightly combined with the outside of the inner die, and two ends of the outer die are also fixed on the frame through the screws. The hollow screw pump rotor shaping machine can use steel pipes to manufacture screw pump rotors, can save a large amount of steel materials, greatly lowers the production cost, has high production precision, high manufacture efficiency and low manufacture cost, is not limited by the manufacture size, and has wide application range.

Description

Even wall thick hollow screw pump rotor molding machine

Technical field

The utility model relates to a kind of screw pump rotor make-up machine, specifically relates to a kind of even wall thick hollow screw make-up machine (comprising single head, double end, three, four-head, five, six first-class screw pump rotors).

Background technology

The processing of screw pump rotor is normally milled and is processed by extension pitch, whirlwind by machine tool C6136, C6280.Present ubiquitous problem is: the first, the ratio of precision of this machine tooling is lower, and roughness ratio is relatively poor; The second, Jia Gong efficient is low, the processing of incompatible extensive screw pump rotor; Three, cost of processing is than higher, and at first it is with solid steel unit processing, moreover needs brazed shank tool in the middle of the process of processing, has increased manufacturing cost! If on Digit Control Machine Tool, process, then need on four screw rod dedicated numerical control machining center, process, four lathes will be got well millions of units, processing charges costliness! Require also than higher for the operator; Four, the length of screw rod is subjected to the restriction of the length of lathe, generally all is below six meters.Five, the solid screw quality is big, and centrifugal force is big, the stator rapid wear.In addition, manufacture process speed is also slow, and consumed energy is bigger.

The utility model content

For addressing the above problem, the purpose of this utility model is to provide that a kind of process velocity is fast, low cost of manufacture, and can reduce raw material, the even wall thick hollow screw pump rotor molding machine of increasing work efficiency.

For achieving the above object, the utility model is to realize by following technical scheme:

A kind of even wall thick hollow screw pump rotor molding machine, it is characterized in that comprising framework 4, internal mold 2 and external mold 3, described internal mold 2 profiles are taper, be processed with an axial through hole at internal mold 2 centers, the spirality that is shaped as the screw rod outside of the inwall of through hole, form the die cavity of processing screw pump rotor, internal mold 2 two ends are fixed on the framework 4 by screw; Described external mold 3 is unitary tapered ring-type, is enclosed within the outside of internal mold 2, combines closely in the outside of the inwall of external mold 3 and internal mold 2, and the two ends of external mold 3 also are fixed on the framework 4 by screw.

Aforesaid even wall thick hollow screw pump rotor molding machine is characterized in that described internal mold 2 for along the circumferential direction being divided into three, is fixed on the framework by screw respectively, supports with spring between three internal molds, is subjected to external mold 3 constraints.

Aforesaid even wall thick hollow screw pump rotor molding machine, it is characterized in that on described framework, being equipped with the external mold hold down gag, the external mold hold down gag is installed in frame upper side versatilely, can be fixed on the framework by screw, the downside of external mold hold down gag is the inclined plane, is close on the outer wall of external mold.

The beneficial effects of the utility model are: the utility model can be processed screw pump rotor with steel pipe, can save a large amount of steel, greatly reduce production costs, and production precision height, working (machining) efficiency height, low cost of manufacture, processing length is unrestricted, and is widely applicable.

Description of drawings

Fig. 1 be even wall thick hollow screw pump rotor molding machine of the present utility model structural representation.

The specific embodiment

Below in conjunction with accompanying drawing even wall thick hollow screw pump rotor molding machine of the present utility model is carried out specific description.

Fig. 1 be even wall thick hollow screw pump rotor molding machine of the present utility model structural representation.As shown in the figure, even wall thick hollow screw pump rotor molding machine of the present utility model comprises framework 4, internal mold 2 and external mold 3, internal mold 2 profiles are taper, on internal mold 2, be processed with an axial through hole, the spirality that is shaped as the screw rod outside of the inwall of through hole, form the die cavity of processing screw pump rotor, internal mold 2 two ends are fixed on the framework 4 by screw.

External mold 3 is unitary tapered ring-type, is enclosed within the outside of internal mold 2, and external mold 3 is fixed on the base.

Internal mold 2 is swaging dies of screw pump rotor, and external mold 3 is fixed dies, and internal mold 2 opens by spring force during work, and with steel pipe extrusion modling in internal mold 2, steel pipe has just formed screw pump rotor.Check the requirement that whether screw pump rotor reaches needs! If satisfy just passable! The stroke of internal mold 2 can be adjusted, and needs only to change internal mold 2 when other description of needs.

Simultaneously, for the screw pump rotor of more convenient processing all size, internal mold 2 is fixed on the framework by screw respectively for along the circumferential direction being divided into three, supports with spring between three internal molds, is subjected to external mold 3 constraints, can regulate the distance between three.

In addition, move, the external mold hold down gag is installed on framework 4 for preventing internal mold 2 and external mold 3, the external mold hold down gag is installed in the upside of framework 4 versatilely, can be fixed on the framework by screw, the downside of external mold hold down gag is the inclined plane, is close on the outer wall of external mold 3.Play effect fixing and that compress.

Even wall thick hollow screw pump rotor molding machine of the present utility model is not subjected to any restriction for the length of screw rod, can process the screw pump rotor more than six meters, has improved operating efficiency greatly.Simultaneously, the screw pump rotor precision height that extruding is come out, process velocity is fast, really realizes efficient, energy-conservation!

The speed of the utility model processing is fast, is 30 times of common process method efficient; Cost of processing is lower, is fit to large-scale production, can replace original steel unit with steel pipe, and its cost is about 20% of a former cost, can save lot of materials.Technological precedence, market prospects are extensive.

Above-mentioned enforcement does not limit the utility model in any form, and all technical schemes that mode obtained of taking to be equal to replacement or equivalent transformation all drop in the protection domain of the present utility model.

Claims

1, a kind of even wall thick hollow screw pump rotor molding machine, it is characterized in that comprising framework, internal mold and external mold, die topography is a cone in described, on internal mold, be processed with an axial through hole, the spirality that is shaped as the screw rod outside of the inwall of through hole, form the die cavity of processing screw pump rotor, the internal mold two ends are fixed on the framework by screw; Described external mold is unitary tapered ring-type, is enclosed within the outside of internal mold, combines closely in the inwall of external mold and the outside of internal mold, and the two ends of external mold also are fixed on the framework by screw.

2, even wall thick hollow screw pump rotor molding machine according to claim 1 is characterized in that described internal mold for along the circumferential direction being divided into three, is fixed on the framework by screw respectively, supports with spring between three internal molds, fettered by external mold.

3, even wall thick hollow screw pump rotor molding machine according to claim 1 and 2, it is characterized in that on described framework, being equipped with the external mold hold down gag, the external mold hold down gag is installed in frame upper side versatilely, can be fixed on the framework by screw, the downside of external mold hold down gag is the inclined plane, is close on the outer wall of external mold.