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Wood die positioning device for high-precision sand mould casting

A technology of sand casting and positioning device, which is applied in the field of high-precision sand casting wood mold positioning device and sand casting wood mold positioning device for precise positioning, can solve the problems of positioning device positioning accuracy and low life, and achieve good popularization and application. Value, high precision, less wear and bruise effect

Inactive Publication Date: 2018-03-09
QINGDAO RUNCHENG VEHICLE FITTINGS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The positioning device composed of high-quality dovetail pins and dovetail grooves has low positioning accuracy and service life

Method used

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  • Wood die positioning device for high-precision sand mould casting
  • Wood die positioning device for high-precision sand mould casting

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Experimental program
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Effect test

Embodiment Construction

[0013] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0014] Such as figure 1 : The wooden mold positioning device for sand casting shown in the figure includes a convex side part and a concave side part. The convex side part is a steel positioning pin 1, and the concave side part is a steel positioning sleeve 2. The size of the steel positioning pin 1 The cylindrical surface matches the cylindrical surface of the inner hole of the steel positioning sleeve 2.

[0015] The small cylindrical surface of the steel positioning pin 1 is precisely matched with the inner cylindrical surface of the steel positioning sleeve 2 with a gap of 0.08±0.02mm to realize the positioning function.

[0016] The large cylindrical surface of the steel positioning pin 1 is knurled to prevent rotation during assembly and use. The upper end has chamfers, which play a guiding role during assembly; the lower end of the small...

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Abstract

The invention provides a wooden mold positioning device for high-precision sand casting, which includes a convex side part and a concave side part, the convex side part is a steel positioning pin, and the concave side part is a steel positioning sleeve. The steel positioning pin is small The cylindrical surface matches the inner cylindrical surface of the steel positioning sleeve. The large cylindrical surface of the steel positioning pin has knurling, and the upper end has chamfers, which play a guiding role during assembly, and the lower end of the small cylinder has chamfers. The outer cylindrical surface of the steel positioning sleeve is knurled, the outer side of the lower end is chamfered, and the upper end of the inner hole is chamfered. The positioning pin and the positioning sleeve of the present invention are made of steel with high hardness and strength, and are not easy to be worn and damaged when friction and collision occur during use; the positioning pin and the positioning sleeve are processed by precision machine tools with high precision ; The positioning device is low in cost and has good promotion and application value.

Description

technical field [0001] The invention relates to a wooden mold positioning device for sand casting, in particular to a high precision wooden mold positioning device for sand casting, in particular to a positioning device for precise positioning of a wooden mold for sand casting. Background technique [0002] At present, the molds for sand casting mainly include wooden molds and metal molds. Because metal molds have a long manufacturing cycle, high cost, and are not easy to change, they are only suitable for large-scale production. Wooden molds are generally used in single-piece and small-batch production. [0003] At present, the positioning devices used for the positioning of wooden molds for sand casting all adopt wooden dovetail pins and dovetail grooves to form positioning devices. Wooden dovetail pins and dovetail grooves are handmade by woodworkers, with low precision, and friction and collisions often occur during use. Due to the low hardness and strength of wood, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/02
CPCB22C9/02
Inventor 穆平成孙京学穆卫霞
Owner QINGDAO RUNCHENG VEHICLE FITTINGS CO LTD
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