Mould guider
Technical field
The present invention relates to a kind of mold guide sleeve, belong to mould applications.
Background technology
In mould applications, guide pin bushing and guide pillar form the guider of mould jointly, are used for ensureing that upper and lower mould is so that position relationship is involutory accurately.Owing to constantly doing relative motion between patrix and counterdie, so certain gap must be had between guide pillar and guide pin bushing to guarantee accessible motion, existing mould is all guide pillar, line made by guide pin bushing or the relative motion of face friction, and excesssive gap can cause location inaccurate, and error is large; Gap is too small, can increase friction, make the serious wear of guide pillar guide pin bushing, decrease service life, increase cost and drop into, and the replacing of guide pillar guide pin bushing quite bothers.Given this, in the urgent need to a kind of novel, error is little, locate easy, durable mould guider.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of easy location, guiding is accurate, error is little, wear and tear mould guider that is little, long service life.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
Mould guider, comprise: the guide pillars and bushes being individually fixed in cope match-plate pattern and lower bolster, described guide pillar is cylindrical, described guide pin bushing is annulus cylindricality and is formed with an annular spacing groove bottom the inwall of guide pin bushing, described guide pin bushing internal clearance coordinates a ball sleeve, the bottom of described ball sleeve is formed with the spacing preiection corresponding with annular spacing groove, is provided with elastic component between described spacing preiection and annular spacing groove; Described ball sleeve comprises body and ball, wherein body be annulus cylindricality and sidewall is formed with multiple circular groove, described ball to be contained in circular groove and can Free-rolling.
Aforementioned spacing preiection is annular protrusion integrated with ball sleeve body.
Aforementioned spacing preiection is integrated multiple projection with ball sleeve body, and described multiple projection is arranged on same periphery.
Aforementioned elastic parts is the elastomeric pad be made up of rubber.
Aforementioned elastic parts is jump ring, and described jump ring one end props up spacing preiection, and the other end props up annular spacing groove.
The outer wall middle and lower part of aforementioned guide pin bushing forms a locating slot.
The top of aforementioned ball sleeve exceeds the top of described guide pin bushing.
The rectification error of the matched in clearance of aforementioned guide pin bushing and ball sleeve is less than 2 μm.
Usefulness of the present invention is: mould guider of the present invention, guide pin bushing internal clearance coordinates a ball sleeve, traditional link friction or face friction are changed into rolling friction, location and guiding is made to become easy realization, and error is little, ensure that the stability of product quality, also extend the service life of guide pillars and bushes, remarkable in economical benefits simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of mould guider of the present invention;
Fig. 2 is the top view of mould guider of the present invention.
The implication of Reference numeral in figure: 1, guide pillar, 2, guide pin bushing, 3, ball sleeve, 4, body, 5, ball, 6, spacing preiection, 7, annular spacing groove, 8, elastic component, 9, locating slot.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, concrete introduction is done to the present invention.
See Fig. 1 and Fig. 2, mould guider of the present invention, comprise: the guide pillar 1 and the guide pin bushing 2 that are individually fixed in cope match-plate pattern and lower bolster, arrange a ball sleeve 3 in guide pin bushing 2, and guide pillar 1 is columniform, guide pin bushing 2 and ball sleeve 3 are annulus cylindricality, ball sleeve 3 and guide pin bushing 2 adopt matched in clearance, and particularly, ball sleeve 3 comprises body 4 and ball 5, the sidewall of body 4 is formed with multiple circular groove, ball 5 is just in time contained in circular groove and can not drops out and can Free-rolling.So, the guiding of guide pillar 1 and guide pin bushing 2 and locate just to become and be easy to realize, employing ball 5 achieves rolling friction, greatly reduces the wearing and tearing of guide pillar 1 and guide pin bushing 2, extends service life.Preferably, the top of ball sleeve 3 exceeds the top of described guide pin bushing 2, to further facilitate location.
In order to guide pin bushing 2 and ball sleeve 3 are worked good, an annular spacing groove 7 is formed bottom the inwall of guide pin bushing 2, correspondingly be formed with the spacing preiection 6 corresponding with annular spacing groove 7 in the bottom of ball sleeve 3, and be provided with elastic component 8 between spacing preiection 6 and annular spacing groove 7.Because ball sleeve 3 and guide pin bushing 2 are matched in clearance but also are provided with elastic component 8, so, even if there is slight deviations the position of guide pin bushing 2 and guide pillar 1, also automatically can be corrected by the displacement of ball sleeve 3, preferred as one, ball sleeve 3 and the rectification error of the matched in clearance of guide pin bushing 2 be 2 μm (microns) below.
As concrete structure, spacing preiection 6 is and the integrated annular protrusion of ball sleeve 3 body 4, and also can be multiple projection integrated with ball sleeve 3 body 4, multiple projection be arranged on same periphery.Elastic component 8 can be the elastomeric pad be made up of rubber, and can be also jump ring, jump ring one end props up spacing preiection 6, and the other end props up annular spacing groove 7.Like this, ball sleeve 3 just can realize displacement thus rectification error by compression elastic piece 8.
Further, as shown in Figure 1, the outer wall middle and lower part of guide pin bushing 2 forms a locating slot 9, guide pin bushing 2 is installed on position accurately.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.