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Preparation method for square ram casting mould of large numerical control floor type boring machine

A technology of floor boring and square ram, which is applied in the directions of casting molds, casting mold components, casting molding equipment, etc., can solve the problems of complex process and affect product quality, and achieve the effect of simple process, shortening processing cycle, and improving quality.

Inactive Publication Date: 2018-09-14
芜湖久弘重工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional large-scale CNC floor boring machine square ram mold preparation process is too complicated, and it is prone to sand drop, residual sand and residual gas, which will affect product quality

Method used

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  • Preparation method for square ram casting mould of large numerical control floor type boring machine
  • Preparation method for square ram casting mould of large numerical control floor type boring machine
  • Preparation method for square ram casting mould of large numerical control floor type boring machine

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A method for preparing a square ram casting mold for a large-scale numerically controlled floor boring machine, comprising the following steps:

[0032] Step 1: Use the flat pouring method;

[0033] Step 2: Design and make the form mold 1 according to the shape of the ram to be cast. The form mold 1 is provided with a plurality of dispersed bottom pour ingates 8, and the ram form mold 1 is placed on the plane. The outer side of the mold 1 is fitted with chilled bricks 2. The chilled bricks 2 are made of silicon carbide. At the same time, a layer of sand barrier layer 3 is laid on the other side of the ram mold 1, and the sand barrier layer 3 Graphite cold iron 4 is laid on the outside;

[0034] Step 3: Prefabricate the ingate 5, runner 6 and sprue 7 according to the process requirements, install the runner 6 on the outside of the ram-shaped mold 1, fix it with a conventional metal bracket, and install the sprue 7 is installed on the end of the ram-shaped mold 1, so th...

Embodiment 2

[0040] A method for preparing a square ram casting mold for a large-scale numerically controlled floor boring machine, comprising the following steps:

[0041] Step 1: Use the flat pouring method;

[0042] Step 2: Design and make the form mold 1 according to the shape of the ram to be cast. The form mold 1 is provided with a plurality of dispersed bottom pour ingates 8, and the ram form mold 1 is placed on the plane. The outer side of the mold 1 is fitted with chilled bricks 2. The chilled bricks 2 are made of silicon carbide. At the same time, a layer of sand barrier layer 3 is laid on the other side of the ram mold 1, and the sand barrier layer 3 Graphite cold iron 4 is laid on the outside;

[0043] Step 3: Prefabricate the ingate 5, runner 6 and sprue 7 according to the process requirements, install the runner 6 on the outside of the ram-shaped mold 1, fix it with a conventional metal bracket, and install the sprue 7 is installed on the end of the ram-shaped mold 1, so th...

Embodiment 3

[0049] A method for preparing a square ram casting mold for a large-scale numerically controlled floor boring machine, comprising the following steps:

[0050] Step 1: Use the flat pouring method;

[0051] Step 2: Design and make the form mold 1 according to the shape of the ram to be cast. The form mold 1 is provided with a plurality of dispersed bottom pour ingates 8, and the ram form mold 1 is placed on the plane. The outer side of the mold 1 is fitted with chilled bricks 2. The chilled bricks 2 are made of silicon carbide. At the same time, a layer of sand barrier layer 3 is laid on the other side of the ram mold 1, and the sand barrier layer 3 Graphite cold iron 4 is laid on the outside;

[0052] Step 3: Prefabricate the ingate 5, runner 6 and sprue 7 according to the process requirements, install the runner 6 on the outside of the ram-shaped mold 1, fix it with a conventional metal bracket, and install the sprue 7 is installed on the end of the ram-shaped mold 1, so th...

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Abstract

The invention discloses a preparation method for a square ram casting mould of a large numerical control floor type boring machine. The preparation method comprises the following steps that 1, a flat-making flat-casting method is adopted; 2, a shape mould is manufactured according to the shape design of a ram needing to be cast, the ram shape mould is placed on a plane, a chilling brick is placedon one side of the exterior of the ram shape mould in an attached mode, meanwhile, a layer of sand isolation layer is laid on the other side of the ram shape mould, and graphite cold iron is laid on the exterior of the sand isolation layer; and 3, an ingate, a crossgate and a sprue are prefabricated according to the process requirement, the crossgate is mounted on the exterior of the ram shape mould and fixed through a conventional metal bracket, the sprue is mounted at the end of the ram shape mould, and the end of the sprue extends into the ram shape mould. According to the preparation method, the chilling brick which is provided with ten or more distributed uphill casting inner gates, assembled with graphite cold iron and made of a silicon carbide material and a body are integrally prepared, and the defects of sand dropping, residual sand, residual gas and the like of castings can be effectively overcome.

Description

technical field [0001] The invention relates to the technical field of ram production, in particular to a method for preparing a square ram casting mold for a large-scale numerically controlled floor boring machine. Background technique [0002] Floor boring square ram is an important functional accessory designed for heavy-duty CNC machine tools and other types of machine tools. It is a direct transmission part of the workpiece force during processing. At the same time, it can realize some auxiliary functions of the machine tool to ensure machining accuracy and improve production efficiency. , Reduce labor intensity. Therefore, the rigidity and dynamic performance of the square ram have a great influence on the overall machining performance of the machine tool matched with it, including machining accuracy and machining efficiency. [0003] The traditional large-scale CNC floor boring machine square ram mold preparation process is too complicated, and it is prone to sand dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/08B22D27/04B22C9/02B22C9/12
CPCB22C9/02B22C9/082B22C9/086B22C9/12B22D27/04
Inventor 艾明何文东姬唱
Owner 芜湖久弘重工股份有限公司