CN203495154U

CN203495154U - Hexagonal workpiece casting auxiliary unit

Info

Publication number: CN203495154U
Application number: CN201320427840.7U
Authority: CN
Inventors: 谈建兴
Original assignee: WUJIANG LILI JIANXING CASTING FACTORY
Current assignee: WUJIANG LILI JIANXING CASTING FACTORY
Priority date: 2013-07-18
Filing date: 2013-07-18
Publication date: 2014-03-26
Anticipated expiration: 2023-07-18

Abstract

The utility model discloses a hexagonal workpiece casting auxiliary unit. The hexagonal workpiece casting auxiliary unit comprises a main pin shaft, an upper cover plate and a lower cover plate, wherein the main pin shaft is a six-sided cylindrical step shaft, the upper cover plate is fixed on one side with longer diameter of the main pin shaft, the lower cover plate is provided with a hexagonal workpiece open pore and one side with short diameter of the main pin shaft is sleeved with the lower cover plate, the horizontal plane of each of the upper cover plate and the lower cover plate is vertical to the axis of the main pin shaft, and the step size of the main pin shaft is set according to the size of a casting piece. A prefabricated hard hexagonal component is arranged in a mold to substitute the original sand sintered material, so that the situation of chip and sand hole caused by the combination problem of the sand sintered mold in the pouring can be avoided through the method, the quality of the casting piece can be improved, the rate of finished products is improved, and the economic benefit is good.

Description

A kind of hexagon workpiece casting auxiliary member

Technical field

The utility model relates to a kind of hexagon workpiece casting auxiliary member, belongs to casting mould field.

Background technology

Thereby the processing of traditional hexagon is generally built by the wood mold coupled making of carrying out sandbox, but in the situation that some hexagon sizes are less, during such as inner hexagon spanner or hexagonal outer hexagonal spanner, because sandbox is when make, the caking ability between sand is inadequate, can produce the situations such as angle that collapse, major part is all by first building and polish, and to reach precision, has so just increased the workload of producing in factory, cause yield rate to reduce, production capacity declines.

Utility model content

The purpose of this utility model is: a kind of technical scheme that can overcome the above problems is provided.

The utility model is realized by the following method:

A kind of hexagon workpiece casting auxiliary member, comprise stub axle, upper cover plate and lower cover, described stub axle is hexagonal prism Step Shaft, described upper cover plate is fixed on the long side of stub shaft diameter, on described lower cover, be provided with the perforate of hexagon workpiece, be socketed in the shorter side of stub shaft diameter, described upper cover plate is vertical with stub axle axis with the horizontal plane of lower cover, and the length of bench of described stub axle arranges according to cast member size.

As further innovation of the present utility model, described stub axle runs through and is provided with cylindric through hole, and the inwall of described through hole is provided with screw thread near the position at stub axle both ends.

As further innovation of the present utility model, the fit tolerance of described lower cover and stub axle is H7/m6; Get this tolerance, make lower cover and stub axle can be easily by the mode such as knocking, install or take off.

As further innovation of the present utility model, described upper cover plate and lower cover and stub axle junction, be provided with chamfering.

As further innovation of the present utility model, described hexagon workpiece casting auxiliary member adopts heat-stable ceramic to fire shaping.

beneficial effect

Thereby the utility model is arranged on and in mould, is replaced original sandy soil and fire material by a prefabricated hard hexagon member, by this method, make in cast, can not produce because sandy soil fire the conjugation problem of mould self situations such as collapsing angle trachoma, improved the quality of watering foundry goods, improve yield rate, there is good social benefit.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of stub axle of the present utility model.

Fig. 2 is the cooperation figure of stub axle of the present utility model, upper cover plate and lower cover.

Fig. 3 is top view of the present utility model.

Fig. 4 is the working condition chart when casting outer hexagonal spanner of the present utility model.

In figure: 1, upper cover plate; 2, lower cover; 3, stub axle; 4, through hole.

The specific embodiment

Below in conjunction with accompanying drawing, be described further:

As shown in Fig. 1 ~ 3, the utility model comprises upper cover plate 1, lower cover 2, stub axle 3 and through hole 4, described stub axle 3 is hexagonal prism Step Shaft, described upper cover plate 1 is fixed on the long side of stub axle 3 diameters, on described lower cover 2, be provided with the perforate of hexagon workpiece, be socketed in the shorter side of stub axle 3 diameters, described upper cover plate 1 is vertical with stub axle 3 axis with the horizontal plane of lower cover 2, in stub axle 3 inside, be provided with one and run through through hole 4, stub axle adopts pottery to make simultaneously.

In use, as shown in Figure 4 outer-hexagonal is pulled with this auxiliary member and inserted and in sandbox, make mould, afterwards by separated outer hexagonal spanner and this auxiliary member of taking out of sandbox, sandbox is fired to shaping, in sandbox, be fit into again afterwards this auxiliary member and build, after having built, in through hole 4, inject cooling agent, make the first cooling stroke rule of the metal that contacts with this auxiliary member outer wall, afterwards after all metals in sandbox are cooling, both take out can or working end is fine and close and accurate outer hexagonal spanner;

Same interior Hexagonal jacket to be produced or facing are put into sandbox coordinate this auxiliary member to make mould, then build that can to obtain equally hexagonal edge shape degree more accurate, the more intense correspondence of rigidity is watered foundry goods.

Claims

1. a hexagon workpiece is cast auxiliary member, it is characterized in that: comprise stub axle, upper cover plate and lower cover, described stub axle is hexagonal prism Step Shaft, described upper cover plate is fixed on the long side of stub shaft diameter, on described lower cover, be provided with the perforate of hexagon workpiece, be socketed in the shorter side of stub shaft diameter, described upper cover plate is vertical with stub axle axis with the horizontal plane of lower cover, and the length of bench of described stub axle arranges according to cast member size.

2. hexagon workpiece as claimed in claim 1 casting auxiliary member, is characterized in that: described stub axle runs through and is provided with cylindric through hole, and the inwall of described through hole is provided with screw thread near the position at stub axle both ends.

3. hexagon workpiece casting auxiliary member as claimed in claim 1, is characterized in that: the fit tolerance of described lower cover and stub axle is H7/m6.

4. hexagon workpiece casting auxiliary member as claimed in claim 1, is characterized in that: described upper cover plate and lower cover and stub axle junction, be provided with chamfering.

5. hexagon workpiece casting auxiliary member as claimed in claim 1, is characterized in that: described hexagon workpiece casting auxiliary member adopts heat-stable ceramic to fire shaping.