CN101456062A

CN101456062A - Core assembly and core assembling technique thereof

Info

Publication number: CN101456062A
Application number: CN 200810136652
Authority: CN
Inventors: 杨林龙; 王玉平
Original assignee: Suzhou Mingzhi Technology Co Ltd
Current assignee: Suzhou Mingzhi Technology Co Ltd
Priority date: 2008-12-24
Filing date: 2008-12-24
Publication date: 2009-06-17

Abstract

The invention relates to a core assembly, which comprises a plurality of cavity cores which are orderly connected in series by cascading holes on the cavity cores, an upper outline core and a lower outline core arranged at two ends of the plurality of the serial cavity cores respectively, a cascading piece passing through the upper outline core, the plurality of the cavity cores and the lower outline core in turn, and a left side core and a right side core arranged at two sides of the upper outline core, the plurality of the cavity cores and the lower outline core respectively, wherein a sealed cavity for accommodating pouring liquid is formed among the upper outline core, the right side core, the lower outline core, the left side core and the plurality of the cavity cores. The invention also relates to core assembling technology. The core assembly and the core assembling technology make a casting have higher size accuracy, reduce the casting defect caused by sticking, and increase operability of the core assembling process at the same time.

Description

The core assembling technology of core group and this core group

Technical field

The present invention relates to a kind of core group; The invention still further relates to a kind of core assembling technology of this core group.

Background technology

For the very complicated valve body moulding of inner chamber, often need very many combined formation of core, these cores of assembling are the very things of difficulty under the prerequisite that guarantees size stability and higher operability, core assembly method of the prior art is as shown in Figure 1: it comprises a whole valve pocket core (12) in the middle of being positioned at, and with this as matrix chamber core, a plurality of independently valve pocket cores (11) are assembled to respectively on this matrix core by the mode of viscose glue.This technology is difficult to guarantee the size of foundry goods, and has bigger operation easier, simultaneously, in the process of using sticking bonding each valve pocket core (11) of core agent, is easy to generate defectives such as pore, and the percent defective of the valve body moulding of feasible this explained hereafter of use is high.

Summary of the invention

The objective of the invention is to improve a kind of be used to produce a kind of dimensional accuracy height of complicated valve body class component, the core group that casting is accurate, the core assembly operability is high; Another object of the present invention provides a kind of core assembly method that can improve core assembly dimensional accuracy, reduction casting flaw, increase the operability of core assembly.

For achieving the above object, the technical solution adopted in the present invention is:

A kind of core group, comprise a plurality of its be provided with the serial connection hole and by the chamber core that is connected in series successively of serial connection hole, be separately positioned on a plurality of chambeies core of serial connection mutually two ends go up outer core and down outer core, successively pass outer core, a plurality of chambeies core, down outer core the serial connection part, be separately positioned on limit, the left side core and the right edge core of outer core, a plurality of chambeies core, following outer core both sides, upward the airtight cavity of pouring into a mould liquid is held in formation between outer core, right edge core, following outer core, limit, left side core, a plurality of chambeies core.

A kind of core assembling technology, comprise the steps: at first, core outside under on special-purpose core assembly and testing tool, placing, special-purpose core assembly and testing tool comprise a plurality of telescopic supports and test point, on following outer core, place successively a plurality of chambeies core with on outside core, according to predetermined altitude, use support and test point that each chamber core is carried out the location, locus; Then, will be connected in series part and pass outer core, a plurality of chambeies core, following outer core, screw the securing member that is arranged on serial connection part end; At last, limit, left side core, right edge core are assembled in the both sides of going up outer core, a plurality of chambeies core, following outer core that assemble, upward outer core, right edge core, following outer core, limit, left side core, a plurality of chambeies core form and hold the airtight cavity of pouring into a mould liquid.

Because the employing of technique scheme, the present invention compared with prior art has the following advantages:

Core group involved in the present invention and core assembling technology make foundry goods have very high dimensional accuracy, have reduced the casting flaw of bringing because of viscose glue, have also increased the operability of core assembly process simultaneously.

Description of drawings

Fig. 1 is the schematic diagram of core group of the prior art and core assembling technology;

Fig. 2 is the core group involved in the present invention and the schematic diagram of core assembling technology;

Fig. 3 is the partial enlarged drawing of A part among Fig. 2, is the wedge structure that example shows the two junction with limit, left side core and last outer core;

Wherein: 11, valve pocket core; 12, whole valve pocket core; 21, chamber core; 22, go up outer core; 23, following outer core; 24, securing member; 25, limit, left side core; 26, right edge core; 27, support and test point; 28, serial connection part.

The specific embodiment

Core group as shown in Figure 1 comprises a plurality of chamber cores 21 that it is provided with the serial connection hole and is connected in series successively by the serial connection hole, be separately positioned on the upward outer core 22 and the following outer core 23 at the two ends of a plurality of chambeies core 21 of serial connection mutually, pass outer core 22 successively, a plurality of chambeies core 21, the serial connection part 28 of following outer core 23, the fastening serial connection that is serially connected in that is used for that is arranged on two ends of serial connection part 28 goes up outer core 22 on the part 28, a plurality of chambeies core 21, the securing member 24 of following outer core 23, be separately positioned on outer core 22, a plurality of chambeies core 21, limit, the left side core 25 and the right edge core 26 of following outer core 23 both sides.As shown in Figure 3, the connecting portion of going up between outer core 22, right edge core 26, following outer core 23, limit, the left side core 25 forms the wedge structure, go up to form between outer core 22, right edge core 26, following outer core 23, limit, left side core 25, a plurality of chambeies core 21 and hold the airtight cavity of pouring into a mould liquid, by the wedge structure, make above-mentioned four combination tightr, make the core group form a firm frame-type structure.

Have characteristic face on each chamber core 21 and the last outer core 22, in the core assembly process, characteristic face is used to locate the locus of each chamber core 21 and last outer core 22.

The core assembling technology of above-mentioned core group comprises the steps:

At first, core 23 outside under on special-purpose core assembly and testing tool (not shown), placing, special-purpose core assembly and testing tool comprise a plurality of telescopic supports and test point 27, on following outer core 23, place successively a plurality of chambeies core 21 with on outside core 22, according to predetermined altitude, the characteristic face that uses support and test point 27 and be arranged on outer core 22 and a plurality of chambeies core 21 carries out the location, locus to each chamber core 21, here, scalable being meant supported test point 27 on the left and right directions of Fig. 2, can stretch into outer core 22 and chamber core 21 with the contact characteristic face, or withdraw from away from last outer core 22 and chamber core 21; Then, will be connected in series part 28 and pass outer core 22, a plurality of chambeies core 21, following outer core 23, and use special-purpose core assembly and testing tool to screw and be arranged on the securing member 24 that is connected in series part 28 ends; At last, limit, left side core 25, right edge core 26 are assembled in the both sides of going up outer core 22, a plurality of chambeies core 21, following outer core 23 that assemble, and upward outer core 22, right edge core 26, following outer core 23, limit, left side core 25, a plurality of chambeies core 21 form and hold the airtight cavity of pouring into a mould liquid.

Here, support and test point 27 at first carry out the location, locus to the chamber core 21 of current assembling, last outer core 22, when a plurality of chambeies core 21, go up outer core 22 all assembling finish after, support and chamber core 21 that 27 pairs of test points assemble, go up relative tertiary location between the outer core 22 and carry out secondary and locate.

Claims

1, a kind of core group, it is characterized in that: it comprises a plurality of chamber cores (21) that it is provided with the serial connection hole and is connected in series successively by described serial connection hole, be separately positioned on the upward outer core (22) and the following outer core (23) at the two ends of a plurality of described chamber core (21) of serial connection mutually, pass the described outer core (22) of successively, a plurality of described chamber cores (21), the described serial connection part (28) of outer core (23) down, be separately positioned on the described outer core (22) of, a plurality of described chamber cores (21), described limit, the left side core (25) and the right edge core (26) of outer core (23) both sides down, the described outer core (22) of, right edge core (26), following outer core (23), left side limit core (25), form between a plurality of described chamber cores (21) and hold the airtight cavity of pouring into a mould liquid.

2, core group according to claim 1 is characterized in that: it also comprises the fastening described securing member (24) of going up outer core (22), a plurality of described chamber cores (21), described time outer core (23) that is serially connected on the described serial connection part (28) that is used for of two ends being arranged on described serial connection part (28).

3, core group according to claim 1 is characterized in that: the described connecting portion of between outer core (22), right edge core (26), following outer core (23), limit, the left side core (25) forms the wedge structure.

4, core group according to claim 1 is characterized in that: each described chamber core (21) and described going up on the outer core (22) have the characteristic face that is used to locate its locus.

5, a kind of core assembling technology as any one described core group in the claim 1 to 4 comprises the steps:

At first, core (23) outside under on special-purpose core assembly and testing tool, placing, described special-purpose core assembly and testing tool comprise a plurality of telescopic supports and test point (27), described place successively on the core (23) outside down a plurality of chambeies cores (21) and last outside core (22), according to predetermined altitude, use described support and test point (27) that each described chamber core (21) is carried out the location, locus;

Then, will be connected in series part (28) and pass described outer core (22), a plurality of described chamber cores (21), the described outer core (23) down, screw the securing member (24) that is arranged on described serial connection part (28) end;

At last, limit, left side core (25), right edge core (26) are assembled in described outer core (22), a plurality of described chamber cores (21), the described both sides of outer core (23) down of that assemble, and described outer core (22), right edge core (26), following outer core (23), limit, left side core (25), a plurality of described chamber cores (21) form and hold the airtight cavity of pouring into a mould liquid.

6, core assembling technology according to claim 5, it is characterized in that: described support and test point (27) carry out the location, locus to the described chamber core (21) of current assembling, the described outer core (22) of, after the whole assemblings of core (22) finished outside a plurality of described chamber cores (21), described the going up, the described chamber core (21) that described support and test point (27) assemble, the described relative tertiary location of between the outer core (22) carried out the secondary location.

7, core assembling technology according to claim 5 is characterized in that: described support and test point (27) are by being arranged on described described outer core (22) and a plurality of described chamber cores of on outer core (22) and a plurality of described chamber cores (21) (21) in characteristic face location.

8, core assembling technology according to claim 5 is characterized in that: use described special-purpose core assembly and testing tool to screw described securing member (24).