CN106607563A

CN106607563A - Wax mould for impeller investment casting

Info

Publication number: CN106607563A
Application number: CN201710038964.9A
Authority: CN
Inventors: 黄磊; 徐正茂; 华晓; 罗湘斌; 张亚成; 周达荣
Original assignee: Falcon Aerotech Ltd
Current assignee: Falcon Aerotech Ltd
Priority date: 2017-01-19
Filing date: 2017-01-19
Publication date: 2017-05-03
Anticipated expiration: 2037-01-19
Also published as: CN106607563B

Abstract

The invention provides a wax mould for impeller investment casting and can solve the problems that a wax mould of an existing impeller is high in development and manufacturing cost and long in cycle. The wax mould comprises a base and a plurality of sliding blocks, the base is uniformly provided with a plurality of sliding rails extending in the radial direction in the peripheral direction, and each sliding block is slidably installed between every two adjacent sliding rails. The wax mould is characterized in that each sliding block comprises a sliding block base body and a forming head, each forming head is provided with a wax mould forming cavity, and each forming head is detachably installed at the front end of the corresponding sliding block base body.

Description

For the Wax mold of impeller model casting

Technical field

The present invention relates to model casting field, more particularly, to impeller model casting field, particularly for impeller fusible pattern The Wax mold of casting.

Background technology

Impeller is all had a wide range of applications in many industries, such as automobile charging turbine, centrifugal pump etc., and with product type Diversified development, impeller-type is also more and more, and this construction cycle to product it is also proposed increasingly harsher requirement.

The existing Wax mold for impeller model casting includes some slide blocks, and the front end of each slide block is equipped with wax Contour forming Cavity surface, circumferentially the integral wax-pattern for causing each slip front of split shapes the wax that Cavity surface pieces together one to some slide blocks Contour forming chamber, injects dewaxing by shaping intracavity to wax-pattern, obtains leaf after the full whole shaping investment pattern chamber of dewaxing filling cooling Wheel wax-pattern.For the impeller of different structure, generally require according to vane wheel profile forming matched design and manufacture corresponding Wax mold and slide Block, as the various species of blade wheel structure is various, the design and manufacture cost for resulting in slide block is higher, and whole impeller precision casting mould is opened Send out the manufacturing cycle long.

The content of the invention

For the problems referred to above, the invention provides for the Wax mold of impeller model casting, which can solve existing impeller Wax mold development and manufacturing cost is high, the problem of cycle length.

Its technical scheme is, for the Wax mold of impeller model casting, which includes pedestal and some slide blocks, the pedestal On be evenly distributed some slide rails for radially extending, some slide blocks are slidably mounted on adjacent two cunning respectively Between rail, it is characterised in that：The each piece of slide block includes slide block matrix and shaped head, and the shaped head is provided with wax-pattern Shaping Cavity surface, the shaped head replaceable ground install the front end of the slide block matrix.

Further, the rear end of the front end of the slide block matrix, shaped head is installed by positioning pin connection.

Further, the front end face of the slide block matrix offers locating slot, and the rear end face of the shaped head is provided with fixed Position boss, the positioning boss cooperation are installed in the locating slot.

Further, the bottom surface of the locating slot, offer dowel hole, the alignment pin respectively on the positioning boss Two ends inserted in two dowel holes respectively.

Further, the positioning boss is rectangular boss, and the locating slot is the square being engaged with the rectangular boss Connected in star.

Further, four angles end of the rectangular boss is chamfer, four angles end of the rectangular recess be with The surface groove that four chamfers of the rectangular boss are engaged.

The beneficial effects of the present invention is：Its by slide block be arranged to by slide block matrix and shaped head constitute it is disconnectable Split-type structural, for the processing of the impeller wax-pattern of different types of structure, it is only necessary to the slide block forming head that matched design is manufactured Portion is assembled to slide block matrix, therefore slide block matrix can be reused, and greatly reduces the material of entirety slide block manufacture in the past Cost, shorten slide block and manufacture and design the cycle；And shaped head overall structure is less, it is easy to processing and manufacturing, further shortens mould What is had manufactures and designs the cycle；It is connected with positioning boss by locating slot between slide block pedestal and shaped head, effectively can be carried Both assembly precisions high；And positioning boss can further improve dress using rectangular recess using rectangle convex, detent With precision；In addition, four angles end of rectangular boss for four angles end of chamfer and rectangular recess is and rectangular boss The surface groove that four chamfers are engaged, can play effective guide effect in assembling, prevent unnecessary knocking Clashing and breaking are hindered, and the service life of slide block pedestal is particularly so as to extend slide block, equipment cost is further reduced.

Description of the drawings

Fig. 1 is the schematic diagram of the Wax mold for impeller model casting；

Fig. 2 is slide block structure schematic diagram of the present invention for the Wax mold of impeller model casting；

Fig. 3 is the mplifying structure schematic diagram of slide block matrix in Fig. 2；

Fig. 4 is the mplifying structure schematic diagram of shaped head in Fig. 2.

Reference：10- pedestals；20- slide blocks；21- slide block matrixes；211- locating slots；212- dowel holes；213- inclined-planes Groove；22- shaped heads；221- wax-patterns shape Cavity surface；222- positioning boss；223- dowel holes；224- chamfers；30- is slided Rail；40- casting mouths；50- handles.

Specific embodiment

See Fig. 1 and Fig. 2, the present invention includes pedestal 10 and some slide blocks 20, has been evenly distributed and radially prolongs on pedestal 10 The some slide rails 30 stretched, in the present embodiment slide block 20 be provided with ten pieces, slide rail 30 be provided with ten roads, ten pieces of slide blocks 20 are slidably installed respectively Between two adjacent slide rails 30；Each piece of slide block includes slide block matrix 21 and shaped head 22, and shaped head 22 is provided with Wax-pattern shapes Cavity surface 221, and the front end of slide block matrix 21 is installed on 22 replaceable of shaped head ground.The quantity of slide block 20 according to impeller not Determine with planform.

The front end of slide block matrix 21, the rear end of shaped head 22 are installed by positioning pin connection；The front end of slide block matrix 21 Face offers locating slot 211, and the rear end face of shaped head 22 is provided with positioning boss 222, and the cooperation of positioning boss 22 is installed on positioning In groove 211；Offer dowel hole 212,223, the two ends point of alignment pin on the bottom surface of locating slot 211, positioning boss 222 respectively Cha Ru not be in two dowel holes 212,223.

Wherein, positioning boss 222 is rectangular boss, and locating slot 211 is the rectangular recess being engaged with rectangular boss；Rectangle Four angles end of boss is chamfer 224, and four angles end of rectangular recess is four 224 phases of chamfer with rectangular boss The surface groove 213 of cooperation.

In Fig. 1,40 is casting mouth, and 50 is handle；Ten pieces of slide blocks 20 are connected with the open-and-close mechanism being arranged in pedestal 10 respectively Connect, open-and-close mechanism is connected with handle 50, open-and-close mechanism action can be driven so as to realize ten pieces of slide blocks 20 by pulling handle 50 While open or split locking；After ten pieces of 20 splits of slide block are locked, the wax-pattern of the shaped head 22 of ten pieces of 20 front ends of slide block The split of shaping Cavity surface forms impeller wax-pattern forming cavity, and dewaxing injection impeller wax-pattern shaping intracavity is made by the casting mouth 40 from top The full whole impeller wax-pattern forming cavity of dewaxing filling is obtained, and impeller wax-pattern is shaped after dewaxing cooling, is pulled handle 50, ten pieces of slide blocks 20 overall openings, the demoulding.

Claims

1. the Wax mold of impeller model casting is used for, and which includes pedestal（10）With some slide blocks（20）, the pedestal（10）On It is evenly distributed some slide rails for radially extending（30）, some slide blocks（20）Adjacent two are slidably mounted on respectively The slide rail（30）Between, it is characterised in that：The each piece of slide block（20）Include slide block matrix（21）And shaped head （22）, the shaped head（22）It is provided with wax-pattern shaping Cavity surface（221）, the shaped head（22）Replaceable ground is installed by the cunning Block matrix（21）Front end.

2. the Wax mold for impeller model casting according to claim 1, it is characterised in that：The slide block matrix （21）Front end, shaped head（22）Rear end by position pin connection install.

3. the Wax mold for impeller model casting according to claim 1, it is characterised in that：The slide block matrix （21）Front end face offer locating slot（211）, the shaped head（22）Rear end face be provided with positioning boss（222）, it is described Positioning boss（222）Cooperation is installed on the locating slot（211）It is interior.

4. the Wax mold for impeller model casting according to claim 3, it is characterised in that：The locating slot （211）Bottom surface, the positioning boss（222）It is upper to offer dowel hole respectively（212、223）, the two ends of alignment pin are inserted respectively Enter in two dowel holes（212、223）By slide block matrix（21）With shaped head（22）Connection.

5. the Wax mold for impeller model casting according to claim 3 or 4, it is characterised in that：The convex Platform（222）For rectangular boss, the locating slot（211）It is the rectangular recess being engaged with the rectangular boss.

6. the Wax mold for impeller model casting according to claim 5, it is characterised in that：The rectangular boss Four angles end is chamfer（224）, four angles end of the rectangular recess is four chamfers with the rectangular boss The surface groove being engaged（213）.