CN201357208Y

CN201357208Y - Hole drilling mechanism of sand core vent hole for casting

Info

Publication number: CN201357208Y
Application number: CNU2009201143666U
Authority: CN
Inventors: 陶美娟; 郭剑; 姚杰; 周兴贤; 王春圣
Original assignee: NINGBO HELI MOULD TECHNOLOGY Co Ltd
Current assignee: NINGBO HELI MOULD TECHNOLOGY Co Ltd
Priority date: 2009-02-23
Filing date: 2009-02-23
Publication date: 2009-12-09
Anticipated expiration: 2019-02-23

Abstract

The utility model provides a hole drilling mechanism of a sand core vent hole for casting, which is used for drilling the vent hole on a sand mould to lead out gases in a sand core when in casting. The hole drilling mechanism comprises a sand core positioning device, an electric drilling device and a pneumatic guide device; wherein the sand core positioning device which is fixed with a working table is used for fixing and preventing the sand core or a sand core set from jumping or moving when in hole drilling, and the electric drilling device which is arranged on a sliding block drives a crowd drill bit to rotate by a low-speed motor through a synchronous belt; the pneumatic guide device is composed of cylindrical sliding rails and an air cylinder, the cylindrical sliding rails are arranged at the front and rear sides of the working table, and the air cylinder which is arranged between the two sliding rails is fixed on the working table; wherein a piston rod of the air cylinder is connected with the sliding block, and the sliding block is movably connected with the sliding rails in a contact manner. The hole drilling mechanism can exactly, stably and quickly finish the hole-drilling action of a plurality of vent holes on different positions of the sand core in one time with high efficiency; the labor intensity of workers is lowered, and the production efficiency is improved; moreover, the structure is simple, and the manufacturing cost is low.

Description

The borehole drill construction of sand core for casting steam vent

Technical field

The utility model relates to the casting and molding technical field, especially relates to a kind of borehole drill construction of core steam vent.

Background technology

In sand casting process, need on core, bore steam vent and draw gas in the core, to reduce the casting flaws such as pore that foundry goods produces, mode commonly used is with manually boring one by one; This is for single core or core group, in production in enormous quantities, needs the position of boring or number more for a long time, and labor strength is big, and efficient is not high; The structure that adopts the multi-spindle drilling head is also arranged, and is to connect other many fulcrums with axle by gear pair, its mechanism's complexity, and manufacturing cost is big.

Summary of the invention

The purpose of this utility model is in order to overcome the deficiency of above-mentioned prior art, a kind of borehole drill construction of sand core for casting steam vent is provided, can disposablely finish boring action accurately, steadily, fast and efficiently to a plurality of steam vents on the core different azimuth, reduce labor strength, enhance productivity, and simple in structure, low cost of manufacture.

For achieving the above object, the technical solution of the utility model is such: a kind of borehole drill construction of sand core for casting steam vent comprises the core positioner, electric drill device, pneumatic guider; Wherein core positioner and stationary table are used for fixing core or core group, prevent its play or displacement when boring; Said electric drill device is installed on the slide block, is with through synchronously by slowspeed machine to drive the Ni Zhifu drill head; Said pneumatic guider, by the cylindrical slide rail that is installed on both sides, workbench front and back, and be installed in the middle of two slide rails and the cylinder that is fixed on the workbench is formed, and wherein the piston rod of cylinder and slide block link, and slide block is the mobile connection that contacts with slide rail; Motion drive electric drill device by cylinder passes in and out along two column type slide rails, thereby realizes boring and the action of withdrawing from exactly;

When the boring demand of a plurality of directions is arranged, as long as the borehole drill construction of respective numbers is set; The drilling depth of all directions can be regulated by the stroke size of each cylinder and the length of corresponding drill bit; The boring action of all directions then can be by connecting the disposable realization of each cylinder.

Owing to adopted technique scheme, the borehole drill construction of a kind of sand core for casting steam vent of the present utility model, can disposablely finish boring action accurately, steadily, fast and efficiently to a plurality of steam vents on the core different azimuth, reduce labor strength, enhance productivity, and simple in structure, low cost of manufacture.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the left view of Fig. 1.

Among the figure: 1, workbench, 2, the core positioner, 3, the electric drill device, 301, motor, 302, band synchronously, 303, the Ni Zhifu drill head, 4, pneumatic guider, 401, slide rail, 402, slide rail, 403, slide block, 404, cylinder, 5, core or core group.

The specific embodiment

Shown in Fig. 1-3, the borehole drill construction of a kind of sand core for casting steam vent of the present utility model comprises core positioner 2, electric drill device 3, pneumatic guider 4; Wherein core positioner 2 is fixing with workbench 1, and fixes with core or core group 5, prevents core or core group play or displacement when boring; Said pneumatic guider 4, by the cylindrical slide rail 401,402 that is installed on both sides, workbench 1 front and back, be the slide block 403 that connects that contacts that can relatively move with two slide rails, and being installed in the middle of two slide rails and the cylinder 404 that is fixed on the workbench is formed, the piston rod of this cylinder 404 connects slide block 403; Said electric drill device 3 is installed on the slide block 403, is with 303 rotations of 302 drive Ni Zhifu drill heads through synchronously by slowspeed machine 301; And the motion by cylinder drives Ni Zhifu drill head 303 along 401,402 translations of two column type slide rails, thereby realizes boring and the action of withdrawing from exactly.

If two groups of borehole drill constructions about present embodiment is illustrated as are when having the boring demand of a plurality of directions, as long as the borehole drill construction of respective numbers is set; The drilling depth of all directions can be regulated by the stroke size of each cylinder and the length of corresponding drill bit; The boring action of all directions then can be by connecting the disposable realization of each cylinder.

Claims

1, a kind of borehole drill construction of sand core for casting steam vent is characterized in that: comprise core positioner (2), electric drill device (3), pneumatic guider (4); Wherein core positioner (2) is fixing with workbench (1), and fixes with core or core group (5); Said pneumatic guider (4), by the cylindrical slide rail (401,402) that is installed on both sides, workbench (1) front and back, be the slide block (403) that connects that contacts that can relatively move with two slide rails, and being installed in the middle of two slide rails and the cylinder (404) that is fixed on the workbench is formed, the piston rod of this cylinder (404) connects slide block (403); Said electric drill device (3) is installed on the slide block (403), and electric drill device (3) is with (302) connection Ni Zhifu drill head (303) by slowspeed machine (301) through synchronously.