CN211218583U

CN211218583U - Cantilever psammitolite fixing device

Info

Publication number: CN211218583U
Application number: CN201922321159.4U
Authority: CN
Inventors: 叶青; 杜应流; 程刚; 李功银
Original assignee: Anhui Yingliu Group Huoshan Casting Co Ltd
Current assignee: Anhui Yingliu Group Huoshan Casting Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-08-11
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a cantilever sand core fixing device, which comprises a lower molding sand and an upper molding sand matched with the lower molding sand, wherein a cantilever sand core is arranged between the lower molding sand and the upper molding sand, positioning pins are arranged at both ends of the upper surface of the lower molding sand, two positioning holes are arranged at both ends of the lower surface of the upper molding sand, and the two positioning pins are respectively inserted into the two positioning holes; a die cavity and a head cavity communicated with the die cavity are formed between the lower molding sand and the upper molding sand; the one end of cantilever psammitolite is established in the head chamber, and the one end of cantilever psammitolite is reserved there is the through-hole, and pre-buried T type bolt that has in the lower molding sand, the gasket, the nut that the through-hole and establish through T type bolt upper end cover are worn to locate by the upper end of T type bolt and are fixed with the one end of cantilever psammitolite, and the other end of cantilever psammitolite stretches into in the die cavity. The utility model relates to an ingenious, convenient to use.

Description

Cantilever psammitolite fixing device

Technical Field

The utility model relates to a casting technical field specifically is a cantilever psammitolite fixing device.

Background

The function of the sand core is to form the inner cavity and the hole of the casting and the part of the casting which can not form the sand. The existing cantilever sand core seat is long or large, heavy, large in size of the sand core, difficult to guarantee in size precision and inconvenient to operate.

Therefore, a cantilever sand core fixing device needs to be designed, a core seat is not needed, and the phenomenon that the size of the sand core is overlarge due to the use of the core seat is avoided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cantilever psammitolite fixing device can the effectual technical problem who exists in solving above-mentioned background.

In order to achieve the above object, the present invention provides the following technical solutions:

a cantilever sand core fixing device comprises lower molding sand and upper molding sand matched with the lower molding sand, wherein a cantilever sand core is arranged between the lower molding sand and the upper molding sand, positioning pins are arranged at two ends of the upper surface of the lower molding sand, two positioning holes are formed at two ends of the lower surface of the upper molding sand, and the two positioning pins are respectively inserted into the two positioning holes; a cavity and a head cavity communicated with the cavity are formed between the lower molding sand and the upper molding sand; the one end of cantilever psammitolite is established in the head chamber, the one end of cantilever psammitolite is reserved there is the through-hole, pre-buried T type bolt in the lower molding sand, the upper end of T type bolt is worn to locate the through-hole and is fixed with the one end of cantilever psammitolite through gasket, the nut that T type bolt upper end cover was established, the other end of cantilever psammitolite stretches into in the die cavity.

Preferably, the cavity and the head cavity are both located between the two positioning pins.

Preferably, the die cavity includes the cavity of resorption that the upper surface of molding sand was seted up and the epicoele that the lower surface of molding sand was seted up one, the first chamber is including the cavity of resorption two that the upper surface of molding sand was seted up and the epicoele two that the lower surface of molding sand was seted up.

Preferably, the gasket is pressed on the upper surface of one end of the cantilever sand core through the nut.

Preferably, an integrated structure is formed between each two positioning pins and the lower molding sand.

The beneficial effects of the utility model reside in that:

the utility model can effectively stabilize the upper molding sand on the lower molding sand without shaking through the two positioning pins; through the cooperation of the T-shaped bolt, the gasket and the nut, one end of the cantilever sand core can be fixed in the head cavity, and the other end of the cantilever sand core is prevented from sinking in the cavity. The utility model relates to an ingenious, convenient to use.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1: the utility model discloses structural schematic diagram after cantilever psammitolite installation.

FIG. 2: the utility model discloses structural schematic when cantilever psammitolite is not installed.

In the figure: 1. the casting mold comprises lower molding sand 2, upper molding sand 3, a cantilever sand core 4, a positioning pin 5, a cavity 6, a head cavity 7, a through hole 8, a T-shaped bolt 9, a gasket 10, a nut 11, a first lower cavity 12, a first upper cavity 13, a second lower cavity 14 and a second upper cavity.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the attached drawings, but the invention can be implemented in many different ways as defined and covered by the claims:

referring to fig. 1 and 2, the present invention provides a fixing device for a cantilever sand core 3, which comprises a lower molding sand 1 and an upper molding sand 2 matched with the lower molding sand 1, wherein the cantilever sand core 3 is disposed between the lower molding sand 1 and the upper molding sand 2.

Referring to fig. 1, the two ends of the upper surface of the lower molding sand 1 are provided with positioning pins 4, the two positioning pins 4 and the lower molding sand 1 form an integrated structure, the two ends of the lower surface of the upper molding sand 2 are provided with two positioning holes, and the two positioning pins 4 and the two positioning holes are matched to enable the upper molding sand 2 not to shake in the lower molding sand 1.

Referring to fig. 1, a cavity 5 and a head cavity 6 communicated with the cavity 5 are formed between the lower molding sand 1 and the upper molding sand 2, and the cavity 5 and the head cavity 6 are located between two positioning pins 4.

Referring to fig. 2, the cavity 5 includes a lower cavity 11 opened on the upper surface of the lower molding sand 1 and an upper cavity 12 opened on the lower surface of the upper molding sand 2, and the head cavity 6 includes a lower cavity 13 opened on the upper surface of the lower molding sand 1 and an upper cavity 14 opened on the lower surface of the upper molding sand 2.

Referring to fig. 2, a through hole 7 is reserved at one end of the cantilever sand core 3, a T-shaped bolt 8 is pre-buried in the lower sand core 1, the upper end of the T-shaped bolt 8 penetrates through the through hole 7 and is fixed to one end of the cantilever sand core 3 through a gasket 9 and a nut 10 which are sleeved on the upper end of the T-shaped bolt 8, the gasket 9 is extruded on the upper surface of one end of the cantilever sand core 3 through the nut 10, one end of the cantilever sand core 3 is fixed at the moment, and when the lower sand core 1 is covered on the upper sand core 2, the two positioning pins 4 are respectively inserted into the two positioning holes.

Referring to fig. 1, when the lower molding sand 1 is covered on the upper molding sand 2, one end of the cantilever sand core 3 is disposed in the head cavity 6, and the other end of the cantilever sand core 3 extends into the cavity 5, so that the one end of the cantilever sand core 3 has a fixed stability, and the other end of the cantilever sand core 3 is prevented from sinking in the cavity 5.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims

1. The utility model provides a cantilever psammitolite fixing device, including lower molding sand and with lower molding sand complex upper molding sand, its characterized in that: a cantilever sand core is arranged between the lower molding sand and the upper molding sand, positioning pins are arranged at two ends of the upper surface of the lower molding sand, two positioning holes are formed at two ends of the lower surface of the upper molding sand, and the two positioning pins are respectively inserted into the two positioning holes; a cavity and a head cavity communicated with the cavity are formed between the lower molding sand and the upper molding sand; the one end of cantilever psammitolite is established in the head chamber, the one end of cantilever psammitolite is reserved there is the through-hole, pre-buried T type bolt in the lower molding sand, the upper end of T type bolt is worn to locate the through-hole and is fixed with the one end of cantilever psammitolite through gasket, the nut that T type bolt upper end cover was established, the other end of cantilever psammitolite stretches into in the die cavity.

2. The cantilevered sand core mounting apparatus of claim 1 wherein: the die cavity and the head cavity are both located between the two positioning pins.

3. The cantilevered sand core mounting apparatus of claim 2 wherein: the die cavity is including the cavity of resorption that the upper surface of molding sand was seted up and the epicoele one that the lower surface of upper molding sand was seted up, first chamber is including the cavity of resorption two that the upper surface of molding sand was seted up and the epicoele two that the lower surface of upper molding sand was seted up.

4. The cantilevered sand core mounting apparatus of claim 1 wherein: and the gasket is extruded on the upper surface of one end of the cantilever sand core through the nut.

5. The cantilevered sand core mounting apparatus of claim 1 wherein: and an integrated structure is formed between each two positioning pins and the lower molding sand.