CN202447609U

CN202447609U - Resin sand positioning and mould-assembling device

Info

Publication number: CN202447609U
Application number: CN201120424758XU
Authority: CN
Inventors: 张耀
Original assignee: National No616 Plant
Current assignee: National No616 Plant
Priority date: 2011-11-01
Filing date: 2011-11-01
Publication date: 2012-09-26
Anticipated expiration: 2021-11-01

Abstract

The utility model belongs to the technical field of casting, in particular to a resin sand positioning and mould-assembling device, which solves the collision problem between an upper casting mould and an inner cavity core and improves the positioning accuracy and the mold-assembling accuracy. An upper mould of the positioning and mould-assembling device comprises pin sleeves (2), nuts (6), mould-assembling guide pins (11) and guide pin abdicating pins (7); two positioning pins (1) are respectively fixedly mounted on an upper mould plate (4) and a lower mould plate (9); the pin sleeves (2) are sleeved on cylinders in the middles of the four positioning pins (1); one end of each positioning pin (1) is fixed by using the corresponding nut (7); center holes in the end parts of the guide pin abdicating pins (7) are sleeved on cylinders at the other ends of the positioning pins (1); the pin sleeves (2) are fixed in the casting moulds; before the moulds are assembled, the lower ends of the mould-assembling guide pins (11) are placed in the pin sleeves (2) of a lower casting mould; and when the moulds are assembled, the pin sleeves (2) in the upper casting mould are sleeved at the upper parts of the mould-assembling guide pins (11).

Description

Resin sand location mould assembly device

Technical field

The utility model belongs to casting technology field, is specifically related to a kind of resin sand location mould assembly device.

Background technology

In casting industry; Existing removable-flask moulding location, the mould assemblys such as resin sand, precoated sand, water-glass sand of being used for have a variety of with device; Though every kind of device all has characteristics separately but has a common shortcoming is exactly to some heavy castings, particularly the positioning accuracy of the higher housing class foundry goods of inner chamber core is poor.Location mould closer such as Fig. 1, shown in Figure 2 of existing casting mold; Fig. 1 is the mo(u)ld top half mould; Comprising dome cone 15, cope match plate 16, go up model 17 and framed 18, Fig. 2 be the mo(u)ld bottom half mould, comprising recessed cone 19, time template 20, drag 21 and framed 22.The plastics dome cone 15 of two protrusions is installed on cope match plate 16; Two recessed recessed cones 19 are installed on the following template 20 of mold; When using phenolic sand molding; The mo(u)ld top half mould forms upper mold, and the mo(u)ld bottom half mould forms lower mold, and the dome cone 15 on the cope match plate 16 forms recessed cone on casting mold; Recessed cone 20 on the following template 20 forms the dome cone on casting mold, the location mould assembly leans on the dome cone of recessed cone that upper mold forms and lower mold formation to cooperate and realizes.Cope match plate convex cone shape is identical with the shape of following template concave cone, and both positions are corresponding one by one.

The shortcoming that above-mentioned positioning form exists is exactly that positioning accuracy is lower, the location highly is restricted; The cone height generally all≤70mm; And some heavy castings die cavities or fuse height surpass 500mm; Wall thickness only has 5mm, adopts above-mentioned positioning form only when the location cone of upper mold and lower mold begins to contact, just to play the guiding role, and upper mold contacts with the inner chamber core prior to cone when the height of inner chamber core is higher than the height of locating cone; Slight rocking will cause upper mold and inner chamber core to collide with, and produces problems such as drop or the displacement of inner chamber core.Therefore the location mould assembly of heavy castings can not be satisfied in this location.

The utility model content

The utility model provides a kind of resin sand location mould assembly device, and upper mold and the inner chamber core that has solved the large thin wall casting mould assembly problem of colliding with has improved positioning accuracy and mould assembly precision, and removing from mould is convenient, has realized accurate accurate positioning mould assembly.

The technical scheme of the utility model is, a kind of resin sand location mould assembly device comprises mo(u)ld top half mould and mo(u)ld bottom half mould, said mo(u)ld top half mould comprise model, last mould plate and on framed, the mo(u)ld bottom half mould comprises drag, counterdie template and low mold frame.Said mo(u)ld top half mould also comprises guide, nut, mould assembly pilot pin and the pilot pin pin of stepping down; Respectively fixedly mount two alignment pins on last mould plate and the counterdie template; Two alignment pins on the last mould plate are gone up the axis symmetric arrangement of mould plate relatively; The axis symmetric arrangement of two relative counterdie templates of alignment pin of counterdie template all is with guide on 4 alignment pin middle part cylinders, and an end of alignment pin is fixed with nut; The pilot pin pin end centre bore of stepping down is sleeved on the alignment pin other end cylinder, thus the fixing pilot pin pin of stepping down; Guide is fixed in the casting mold behind the type of rising; The pilot pin pin of stepping down is extracted from alignment pin; Mould assembly pilot pin lower end is placed in the guide of lower mold before the mould assembly; And the cylinder of mould assembly pilot pin lower end inserts in the cylindrical hole of alignment pin end cylinder formation before the mould assembly, and the guide during mould assembly in the upper mold is sleeved on mould assembly pilot pin top.

The diameter of said alignment pin is identical with the diameter of mould assembly pilot pin lower end cylinder, and alignment pin is got tolerance, and promptly the lower deviation of alignment pin diameter is 0, and the mould assembly pilot pin takes off tolerance, and promptly the upper deviation of mould assembly pilot pin diameter is 0, alignment pin height≤60mm.

The utility model beneficial effect is that the utility model adopts metal alignment pin and metal mould assembly pilot pin structure, accurate positioning; Easy to operate; Particularly the mould assembly to the large-scale complex thin-wall foundry goods has accurate guide effect, has avoided upper mold and inner chamber core to collide with, and has realized mould assembly quick and precisely; Because the height of closing pin can be confirmed by the casting mold height, so mould assembly does not receive the restriction of casting mold height.

Description of drawings

Fig. 1 is the upper mold structural representation of existing location mould assembly device;

Fig. 2 is the lower mold structural representation of existing location mould assembly device;

Fig. 3 is the upper mold structural representation of the utility model location mould assembly device;

Fig. 4 is the lower mold structural representation of the utility model location mould assembly device;

The upper mold and the lower mold mould assembly sketch map of Fig. 5 the utility model location mould assembly device;

Fig. 6 is the mould assembly pilot pin structural representation of the utility model location mould assembly device;

Fig. 7 is the locating pin structure sketch map of the utility model location mould assembly device;

Fig. 8 is the guide structural representation of the utility model location mould assembly device.

The specific embodiment

Like Fig. 3, shown in Figure 4, the resin sand of the utility model location mould assembly device comprises mo(u)ld top half mould and mo(u)ld bottom half mould, and the mo(u)ld top half mould comprises alignment pin 1, guide 2, goes up model 3, goes up mould plate 4, last framed 5, nut 6, mould assembly pilot pin 11 and the pilot pin pin 7 of stepping down.The mo(u)ld bottom half mould comprises drag 8, counterdie template 9 and low mold frame 10.

Respectively fixedly mount two alignment pins 1 on last mould plate 4 and the counterdie template 9; Two alignment pins 1 on the last mould plate 4 are gone up the axis symmetric arrangement of mould plate 4 relatively; The axis symmetric arrangement of two alignment pins, the 1 relative counterdie template 9 of counterdie template 9 all is with guide 2 on 4 alignment pin 1 middle part cylinders, and an end of alignment pin 1 is fixing with nut 6; The pilot pin pin 7 end centre bores of stepping down are sleeved on alignment pin 1 other end cylinder, thus the fixing pilot pin pin 7 of stepping down.The diameter of alignment pin 1 is identical with the diameter of mould assembly pilot pin 11 bottom cylinders, and alignment pin 1 is got tolerance (lower deviation that is alignment pin 1 diameter is 0), and mould assembly pilot pin 11 takes off tolerance (upper deviation that is mould assembly pilot pin 11 diameters is 0), alignment pin 1 height≤60mm.The moulding cylindrical hole that cylinder forms on the type die alignment pin 1 at present plays the role of positioning to mould assembly pilot pin 11 when mould assembly; Mould assembly pilot pin 11 length are confirmed according to the height of casting mold; The step down effect one in the space that pin 7 forms of pilot pin is the bit space that lets that forms mould assembly pilot pin 11 during moulding; Two peep holes when being intended for mould assembly, the 3rd, be convenient to take out mould assembly pilot pin 11 behind the mould assembly.Be to guarantee the accuracy of mould assembling location, when moulding, guide 2 be set on the alignment pin 1 of mould plate 4 and counterdie template 9, play type after guide 2 be fixed in the casting mold, the pilot pin pin 7 of stepping down is extracted from alignment pin 1.As shown in Figure 5; Before the mould assembly, mould assembly pilot pin 11 is placed on 2 li of the guidees of lower mold, and the cylinder of mould assembly pilot pin 11 lower ends inserts in the cylindrical hole that alignment pin 1 end cylinder forms before the mould assembly; Guide 2 during mould assembly in the upper mold is sleeved on mould assembly pilot pin 11 tops, accomplishes mould assembly.Mould assembly pilot pin 11 takes out the mould assembly that is used for next part casting mold behind the mould assembly.

Bigger for casting section thickness, or the location do not need too accurate foundry goods, when moulding, do not place guide 2, also direct moulding mould assembly, mould assembly pilot pin 11 directly inserts in the lower mold dowel hole, equally can guide-localization.

Claims

1. a resin sand is located the mould assembly device; This location mould assembly device comprises mo(u)ld top half mould and mo(u)ld bottom half mould; Said mo(u)ld top half mould comprises model (3), goes up mould plate (4) and last framed (5), and the mo(u)ld bottom half mould comprises drag (8), counterdie template (9) and low mold frame (10); It is characterized in that: said mo(u)ld top half mould also comprises guide (2), nut (6), mould assembly pilot pin (11) and the pilot pin pin (7) of stepping down; Respectively fixedly mount two alignment pins (1) on last mould plate (4) and the counterdie template (9); Two alignment pins (1) on the last mould plate (4) are gone up the axis symmetric arrangement of mould plate (4) relatively; Two alignment pins (1) of counterdie template (9) are the axis symmetric arrangement of counterdie template (9) relatively, all is with guide (2) on the cylinder of 4 alignment pins (1) middle part, and an end of alignment pin (1) is fixing with nut (6); Pilot pin pin (7) the end centre bore of stepping down is sleeved on alignment pin (1) other end cylinder, thus the fixing pilot pin pin (7) of stepping down; Guide (2) is fixed in the casting mold behind the type of rising; The pilot pin pin (7) of stepping down is extracted from alignment pin (1); Mould assembly pilot pin (11) lower end is placed on guide (2) lining of lower mold before the mould assembly; And the cylinder of mould assembly pilot pin (11) lower end inserts in the cylindrical hole of alignment pin (1) end cylinder formation before the mould assembly, and the guide (2) during mould assembly in the upper mold is sleeved on mould assembly pilot pin (11) top.

2. according to the said a kind of resin sand of claim 1 location mould assembly device; It is characterized in that: the diameter of said alignment pin (1) is identical with the diameter of mould assembly pilot pin (11) lower end cylinder; Alignment pin (1) is got tolerance, and promptly the lower deviation of alignment pin (1) diameter is 0, and mould assembly pilot pin (11) takes off tolerance; The upper deviation that is mould assembly pilot pin (11) diameter is 0, alignment pin (1) highly≤60mm.