CN218192400U - Bonding and fixing structure for oil pan lost foam white mold - Google Patents

Abstract

The utility model relates to a lost foam casting field discloses a fixed knot that bonds of oil pan lost foam white mould bonds structure, include: the oil pan lost foam white mould, the square three-dimensional frame and the auxiliary supporting piece; the square three-dimensional frame comprises; the upper plane frame and the lower plane frame respectively correspond to the opening surface and the back surface of the oil pan lost foam white mould, the upper plane frame and the lower plane frame are both built by metal square tubes, and the stand columns are connected between the upper plane frame and the lower plane frame and are all square wood columns; the auxiliary supporting piece comprises a first auxiliary supporting piece for supporting the inner cavity of the evaporative pattern white mould of the oil pan and a second auxiliary supporting piece for supporting the outer wall of the evaporative pattern white mould of the oil pan and the mounting flange. The utility model discloses can be so that the good oil pan disappearance mould white mould that bonds can not receive exogenic action and warp at the circulation in-process, the effectual deformation probability that reduces the oil pan product has improved the qualification rate of large-scale cast iron oil pan.

Description

Bonding and fixing structure for oil pan lost foam white mold

Technical Field

The utility model relates to a lost foam casting field especially relates to a bonding fixed knot of oil pan lost foam white mould constructs.

Background

In lost foam casting, the white mold bonding process and the white mold bonding structure play a vital role in controlling the deformation of a casting, and are one of key links for improving the product percent of pass. In the lost foam process, the white mold material is usually polystyrene (EPS) or copolymer (STMMA) foam, and because the white mold itself is low in strength and easy to deform, the white mold body and the casting system are usually fixed by using battens and fiber rods as frameworks. The large oil pan product is often thin in wall thickness, the white mold is easy to deform in the production and circulation process, and particularly the white mold needs to be soaked in viscous paint in the dip-coating process, so that the wood strips are easy to fall off and the product is easy to deform. In the prior art, product rejection due to deformation is one of the main rejection modes of large cast iron oil pan products.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a can effectively avoid large-scale cast iron oil pan shell class product to warp disappearance mould white mould adhesive structure in changeing the dip-coating process.

In order to achieve the above purpose, the utility model adopts the following technical scheme.

The utility model provides a bonding fixed knot of oil pan disappearance mould white mould constructs which characterized in that includes: the oil pan evaporative pattern white mould comprises an oil pan evaporative pattern white mould, a square three-dimensional frame and an auxiliary support piece, wherein the square three-dimensional frame and the auxiliary support piece are used for fixing the oil pan evaporative pattern white mould; the square three-dimensional frame comprises; the upper plane frame and the lower plane frame respectively correspond to the opening surface and the back surface of the oil pan lost foam white mold, the upper plane frame and the lower plane frame are both built by metal square pipes, and the stand columns are connected between the upper plane frame and the lower plane frame and are all square wood columns; the auxiliary supporting piece comprises a first auxiliary supporting piece for supporting the inner cavity of the evaporative pattern white mould of the oil pan and a second auxiliary supporting piece for supporting the outer wall of the evaporative pattern white mould of the oil pan and the mounting flange.

Preferably, the metal square pipe is a steel pipe, an aluminum pipe, a zinc pipe or a copper pipe.

Preferably, the auxiliary support member is a shirttail or a fiber rod.

Preferably, a sealing piece is provided at both ends of each of the metal square pipes.

Preferably, the blocking piece is a textured paper, a plastic blocking cover or a rubber blocking cover.

Preferably, the first auxiliary supporting pieces are two, and are respectively connected with two opposite side walls of the inner cavity of the oil pan lost foam white mold and the bottoms of the upper plane frame and the inner cavity of the oil pan lost foam white mold; the second auxiliary supporting pieces are also of two types and are respectively connected with the outer walls of the lower plane frame and the oil pan evanescent mode white die and the mounting flange.

Preferably, the auxiliary supporting member for supporting the bottom of the inner cavity and the outer wall of the oil pan lost foam white mold comprises a cross bar and a vertical bar, the cross bar spans the upper plane frame or the lower plane frame, and the end of the vertical bar is abutted against the bottom of the inner cavity or the outer wall.

Preferably, one, two or more vertical rods are arranged on one cross rod.

Preferably, a ceramic gasket or an asbestos gasket is arranged at a contact position of the oil pan lost foam white mold, the square three-dimensional frame and the auxiliary support piece.

The utility model has the advantages that: the oil pan evanescent mode white mold which is easy to deform is fixed in the stable square three-dimensional frame by utilizing the high strength characteristic of the square three-dimensional frame, and the auxiliary supporting piece is utilized to carry out auxiliary supporting on the inner cavity and the outer wall of the oil pan evanescent mode white mold. When the oil pan lost foam white mold is subjected to flow-transfer dip-coating, the oil pan lost foam white mold is carried out along with the square three-dimensional frame and the auxiliary supporting pieces, so that the bonded oil pan lost foam white mold cannot be deformed by external force in the flow process, the deformation probability of an oil pan product is effectively reduced, and the qualification rate of a large cast iron oil pan is improved.

Drawings

Fig. 1 shows that the utility model provides an oil pan disappearance mould white mould's bonding fixed knot constructs the sketch map.

Fig. 2 is a schematic view of the bonding and fixing structure of the oil pan lost foam white mold provided by the present invention at another viewing angle.

Reference numerals indicate the same.

1: oil pan lost foam white mould, 2: square space frame, 3: an auxiliary support member.

2-1: upper planar frame, 2-2: lower planar frame, 2-3: column, 2-4: a closure.

3-1: first auxiliary support, 3-2: a second auxiliary support.

Detailed Description

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

Furthermore, if any, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; mechanical connection is also possible; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.

The following description will be further made in conjunction with the accompanying drawings of the specification, so that the technical solution and the advantages of the present invention are clearer and clearer. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Example 1.

A bonding and fixing process for a lost foam white die of an oil pan is based on the following basic principle: the oil pan lost foam white mold is fixed by the square three-dimensional frame, and the inner cavity and the outer wall of the oil pan lost foam white mold are supported by the auxiliary supporting piece in an auxiliary mode. When the flow-to-dip coating is carried out, the oil pan lost foam white mold is carried out along with the square three-dimensional frame and the auxiliary supporting piece, so that the oil pan lost foam white mold is effectively prevented from deforming due to the action of external force.

Specifically, an upper plane frame and a lower plane frame of the square three-dimensional frame respectively correspond to an opening surface and a back surface of the oil pan lost foam white mould, the upper plane frame and the lower plane frame are both built by metal square pipes, and stand columns connecting the upper plane frame and the lower plane frame are both square wood columns; therefore, the strength of the whole square three-dimensional frame can be ensured, and the inconvenience of processing and circulation caused by overlarge weight of the square three-dimensional frame is avoided.

The auxiliary support comprises a first auxiliary support for supporting the inner cavity and a second auxiliary support for supporting the outer wall and the mounting flange. According to different actual needs, the first auxiliary supporting piece can be connected with two adjacent side walls or opposite side walls of the inner cavity, and can also be connected with the upper plane frame and the bottom of the inner cavity; and the second auxiliary support is connected with the lower plane frame and the outer wall or the mounting flange. The auxiliary supporting pieces are preferably made of shirttail, tough and light, and economical and practical.

To facilitate understanding of the essence of the present invention by those skilled in the art, the T9000 oil pan will be described in detail as an example.

T9000 oil pan, product length 1320mm, wide 396mm, height 400mm. The metal square pipe is preferably a square steel pipe, the sizes of the metal square pipe are two specifications, the dimensions are respectively 20mm multiplied by 1350mm and 20mm multiplied by 500mm, the thickness of the square steel pipe is 2mm, and the two ends of the square steel pipe are sealed by textured paper to prevent the paint from entering the square steel pipe when the paint is soaked. The square wood column adopts decoration wood strips, and the specifications are 10mm multiplied by 20mm multiplied by 500mm and 10mm multiplied by 20mm multiplied by 420mm. Here, the purpose of providing the finishing wood strips of 10mm by 20mm by 500mm is to serve as cross beams for upper and lower plane frames to better support and fix the blank molds of the oil pan lost foam. In other embodiments, the 10mm 20mm 500mm finishing battens may be omitted or replaced directly with 20mm 500mm square steel tubes.

When bonding and fixing, the steps are as follows: firstly, adhering and fixing an opening surface of a lost foam white mold of the oil pan by using a rectangular steel pipe with the length of 500mm and a decoration batten with the length of 500mm, and separating a contact point of the square steel pipe and the decoration batten with the lost foam white mold of the oil pan by using a ceramic gasket or an asbestos gasket to prevent the square steel pipe and the decoration batten from directly contacting molten iron; then, a 1350mm square steel tube was bonded to form an upper plane frame as a reference plane. And secondly, turning the blank mold of the oil pan lost foam up and down for 180 degrees, and bonding a lower plane frame, wherein the lower plane frame is also composed of 500mm rectangular steel pipes and 500mm long decoration battens. And thirdly, fixing four corners of the upper and lower plane frames by using 420mm long-mounted wood trimming strips to form a square three-dimensional frame. And fourthly, supporting the side flange and the inner cavity of the oil pan lost foam white mold by using the auxiliary supporting piece, so that the oil pan lost foam white mold and the square three-dimensional frame can be fixed to form a complete integral frame. And fifthly, bonding the pouring system at the bottom of the inner cavity of the oil pan lost foam white mold and fixing the pouring system. And obtaining a finished product of the oil pan lost foam white mold which is well bonded and fixed through the five steps.

This oil pan lost foam white mould finished product whole forms a square space frame by the square steel pipe, the fitment stuff, the oil pan lost foam white mould body is constituteed, any point of lost foam white mould will take place to warp and all can drive whole square space frame, because square space frame main part comprises the square steel pipe, square steel pipe intensity is high, the resistance to deformation ability is strong, consequently, the power that oil pan lost foam white mould circulation dip-coating produced is not enough to make square space frame produce and warp, thereby the deformation of oil pan lost foam white mould has been avoided.

Example 2.

As shown in fig. 1 and 2, an adhesion fixing structure of a lost foam white die of an oil pan, which corresponds to the adhesion fixing process of embodiment 1, includes: the oil pan lost foam white mold comprises an oil pan lost foam white mold 1, and a square three-dimensional frame 2 and an auxiliary support 3 which are used for fixing the oil pan lost foam white mold 1.

Wherein the square three-dimensional frame 2 comprises; the oil pan lost foam white mould comprises an upper plane frame 2-1, a lower plane frame 2-2 and upright posts 2-3, wherein the upper plane frame 2-1 and the lower plane frame 2-2 correspond to the opening surface and the back surface of the oil pan lost foam white mould 1 respectively, the upper plane frame 2-1 and the lower plane frame 2-2 are both built by metal square pipes, and the upright posts 2-3 are connected between the upper plane frame 2-1 and the lower plane frame 2-2 and are both square wood columns.

In this embodiment, the metal square pipe is preferably a square steel pipe, and has high strength and strong deformation resistance. Preferably, the two ends of each metal square pipe are provided with plugging pieces 2-4 so as to prevent the coating from entering the inside of the square steel pipe during dip coating. According to different actual requirements, the metal square tube can be a square aluminum tube, a square zinc tube, a square copper tube and the like; the plugging pieces 2-4 can be beautiful pattern paper, plastic plugging covers, rubber plugging covers and the like.

The auxiliary support 3 comprises a first auxiliary support 3-1 for supporting the inner cavity and a second auxiliary support 3-2 for supporting the outer wall and mounting flange. In this embodiment, there are two first auxiliary supporting pieces 3-1, which are respectively connected to two opposite side walls of the inner cavity of the oil pan lost foam white mold 1, and the bottom of the inner cavity of the upper planar frame 2-1 and the oil pan lost foam white mold 1; the number of the second auxiliary supporting pieces 3-2 is two, and the second auxiliary supporting pieces are respectively connected with the lower plane frame 2-2 and the outer wall of the oil pan lost foam white mould 1 and the mounting flange. Therefore, each part of the oil pan lost foam white mould 1 can be effectively supported, and the optimal anti-deformation effect is achieved.

It should be particularly noted that, when the auxiliary supporting member 3 supports the bottom and the outer wall of the inner cavity, it is preferable that the corresponding auxiliary supporting member includes a cross bar and a vertical bar, the cross bar spans on the upper plane frame or the lower plane frame, and the end of the vertical bar props against the bottom or the outer wall of the inner cavity; one or two or more vertical rods can be arranged on one cross rod; simple structure and convenient implementation.

In this embodiment, the auxiliary supporting member 3 is preferably a batten, which is tough and light, and is economical and practical. The dimensions of the auxiliary support 3 are determined according to the use and strength requirements. The oil pan lost foam white mold is cut into specific lengths according to the distance of the bonding positions, and the oil pan lost foam white mold inner cavity is fixed to support the oil pan lost foam white mold mounting surface and the bottom of the oil pan lost foam white mold inner cavity, so that the oil pan lost foam white mold is fixed in the square three-dimensional frame and does not move. In other embodiments, the auxiliary support 3 may also be other lightweight and strong supports such as fiber rods, and is not limited to this embodiment.

In order to prevent the molten iron from directly contacting the square three-dimensional frame 2 and the auxiliary support 3, a ceramic gasket or an asbestos gasket (not shown) is preferably provided at a contact position of the oil pan lost foam white mold 1 with the square three-dimensional frame 2 and the auxiliary support 3.

The bonding fixed knot of oil pan disappearance mould white mould that this embodiment provided constructs, its advantage: utilize the high strength characteristic of square steel pipe, bond square steel pipe and fitment stuff into square space frame structure, fix the white mould that warp easily in firm square space frame to make the good oil pan disappearance mould white mould that bonds can not receive the exogenic action deformation at the circulation in-process, the effectual deformation probability that reduces the oil pan product has improved the qualification rate of large-scale cast iron oil pan.

It will be understood by those skilled in the art from the foregoing description of the structure and principles that the present invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the known art are intended to fall within the scope of the invention, which is defined by the claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.

Claims (9)

1. The utility model provides a bonding fixed knot of oil pan disappearance mould white mould constructs which characterized in that includes: the oil pan evaporative pattern white mould comprises an oil pan evaporative pattern white mould, a square three-dimensional frame and an auxiliary support piece, wherein the square three-dimensional frame and the auxiliary support piece are used for fixing the oil pan evaporative pattern white mould;

the square three-dimensional frame comprises; the upper plane frame and the lower plane frame respectively correspond to the opening surface and the back surface of the oil pan lost foam white mold, the upper plane frame and the lower plane frame are both built by metal square pipes, and the stand columns are connected between the upper plane frame and the lower plane frame and are all square wood columns;

the auxiliary supporting piece comprises a first auxiliary supporting piece for supporting the inner cavity of the evaporative pattern white mould of the oil pan and a second auxiliary supporting piece for supporting the outer wall of the evaporative pattern white mould of the oil pan and the mounting flange.

2. The bonding and fixing structure of the oil pan lost foam white mold according to claim 1, wherein the metal square tubes are steel tubes, aluminum tubes, zinc tubes or copper tubes.

3. The bonding and fixing structure of the white die of the oil pan evaporative pattern casting machine as claimed in claim 1, wherein the auxiliary supporting member is a shirttail or a fiber rod.

4. The structure for bonding and fixing the white die of the evaporative pattern oil pan as claimed in claim 1, wherein a sealing member is provided at both ends of each of the metal square tubes.

5. The bonding and fixing structure of the oil pan lost foam white mold according to claim 4, wherein the plugging piece is a textured paper, a plastic plugging cover or a rubber plugging cover.

6. The bonding and fixing structure for the evaporative pattern white mould of the oil pan as claimed in claim 1, wherein the first auxiliary supporting members are two in number and respectively connect two opposite side walls of the internal cavity of the evaporative pattern white mould of the oil pan and the bottom of the internal cavity of the evaporative pattern white mould of the oil pan;

the second auxiliary supporting pieces are also of two types and are respectively connected with the outer walls of the lower plane frame and the oil pan evanescent mode white die and the mounting flange.

7. The bonding and fixing structure for the evaporative pattern casting white mold for an oil pan as claimed in claim 6, wherein the auxiliary supporting members for supporting the bottom and the outer wall of the inner cavity of the evaporative pattern casting white mold comprise a cross bar and a vertical bar, the cross bar is spanned on the upper planar frame or the lower planar frame, and the end of the vertical bar is pressed against the bottom of the inner cavity or the outer wall.

8. The bonding and fixing structure for the evaporative pattern white mould of the oil pan as claimed in claim 7, wherein one, two or more vertical rods are arranged on one cross rod.

9. The bonding and fixing structure of the evaporative pattern casting blank of the oil pan as claimed in claim 1, wherein a ceramic gasket or an asbestos gasket is provided at a contact position of the evaporative pattern casting blank of the oil pan with the square three-dimensional frame and the auxiliary supporting member.

Images