CN2764520Y

CN2764520Y - Self-lubricating slide guide assembly

Info

Publication number: CN2764520Y
Application number: CN 200520100329
Authority: CN
Inventors: 金国松
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-27
Filing date: 2005-01-27
Publication date: 2006-03-15
Anticipated expiration: 2015-01-27

Abstract

The utility model discloses a self-lubrication slide guide assembly, which includes a guide sleeve (1) and a guide pillar (6) matched with the guide sleeve (1). In the guide pillar (8), a storing oil pocket (AAn and a filtering oil pocket (E) are arranged and are interconnected with each other. The entrance of the storing oil pocket (AAn is provided with a screw plug (2). The conterminous interface of the storing oil pocket (AAn and the filtering oil pocket (E) is provided with a valve (B). A steel ball (4) is arranged to the valve (B). The upper sphere of the steel ball (4) is provided with a compressed spring (3). The lower sphere of the steel ball is provided with a top spring (5). The guide pillar (6) is provided with a horizontal oil passage (C) connected with the superior part of the filtering oil pocket (E). The outer circle-face of the guide pillar (6) is provided with an outer oil gallery (D) of the guide pillar connected with the horizontal oil passage (C). After the structure is adopted, the utility model has the advantages of rational and simple structure, reliable and convenient adjustment, and good lubricating property. With the same conditions, the service life of the guide assembly can extend into two times as long as the prior guiding package.

Description

Self-lubricating slide-and-guide assembly

Technical field

The utility model relates to the guidance set that uses on a kind of mould, the self-lubricated slide-and-guide assembly of particularly a kind of energy.

Background technology

The slide-and-guide assembly is the important foundation part that uses on the mould, it plays location and guide effect in mould, guarantee that upper and lower mould has correct relative when work, this assembly is made up of guide pillars and bushes, be characterized in simple in structure, easy to process, machining accuracy is high, makes mould have preferably guiding accuracy and guiding rigidity, can correct the forcing press fractional error, improving the service life of mould, is to use the most general guidance mode in producing at present.But mould is when press work, and the mold work stroke is big, and the patrix translational speed is fast, and bigger impact endurance test shock is arranged, and condition of work and environment are relatively poor; Because guiding is unenclosed construction, lubricate and can only lean on artificial timing oiling basically, there is not the oil storage design on the guidance set again, lubricating oil is most of to run off, can only be by sticking to the film lubrication of guidance set working surface, lubricating condition is very poor.Guidance set belongs to accurate sliding joining, gap between them is less, generally has only 0.008-0.015mm, the oiling back starting stage is more because of lubricating oil, can also form mixed film friction state preferably, and Film Thickness Ratio is between 1～5, after impulse stroke motion several times, because of lubricating oil supply in time, make friction be in relatively poor boundary friction, Film Thickness Ratio is less than or equals 1; During the boundary friction state, general boundary film as thin as a wafer, the peak of profile of metal surface roughness generally all surpasses the border thickness, so boundary friction can not be avoided the direct contact of metal fully, dry friction promptly takes place in Metal Contact, the interactional each point generation of the peak of profile of friction surface cold welding, material to another surface, form adhesion wear from a surface migration; Certainly, optimal state makes the surface form fluid lubrication exactly, and promptly Film Thickness Ratio is more than or equal to 5, but is difficult to realize because of the restriction of various conditions such as mould structure.Because the existence of various forms wearing and tearing, greatly reduce the precision stability of guidance set, the reduction of guiding accuracy is also had a strong impact on the precision of mould, life-span, therefore how to make the friction surface of guidance set be in the mixed film friction state, reducing wear, is the guidance set urgent problem.

Summary of the invention

For overcoming the above-mentioned disadvantage that existing guidance set exists, problem to be solved in the utility model provide a kind of simple and reasonable, good reliability, can self-lubricated self-lubricating slide-and-guide assembly when work.The technical scheme that its technical problem that solves the utility model adopts comprises guide pin bushing and the guide pillar that matches with guide pin bushing, be provided with the shoe cream room and the oil strain chamber that are interconnected in the described guide pillar, import at shoe cream room is provided with plug screw, on shoe cream room and interface that the oil strain chamber links to each other, be provided with valve port, valve port is provided with steel ball, sphere is provided with stage clip on the steel ball, and lower peripheral surface is provided with the top spring, and guide pillar is provided with the horizontal oil duct that links to each other with top, oil strain chamber.

For the periphery that makes whole guide pillar can both be lubricated, the periphery of described guide pillar is provided with the outer oil duct of the guide pillar that links to each other with horizontal oil duct.

After adopting said structure, stage clip, steel ball and top spring in use form resonance, and the amplitude that steel ball produces is directly proportional with the mould vibrations, controls oil inlet quantity automatically by the amplitude of steel ball; And can change the pre compressed magnitude of stage clip and top spring by adjusting plug screw, and plug screw is to inner rotary, and steel ball pressure reduces, and vibrations are quick on the draw, and amplitude increases, valve port is opened time lengthening, and oil inlet quantity increases, vice versa; Sealing valve port when steel ball is static, non-directional requirement still can reliably working when operating mode is abominable, and the fuel feeding gap of generation is even; Plug screw plays dust-break, location stage clip, adjusts the effect of continuous oil supply amount; The effect that greasy dirt separates is played in the oil strain chamber, and the lubricating oil after the filtration enters the outer oil duct lubricate of guide pillar by horizontal oil duct; Have advantages such as simple and reasonable, that adjusting is reliably convenient, greasy property is good, under equal conditions guidance set can prolong more than one times service life.

Description of drawings

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

The specific embodiment

Shown in Figure 1, specific embodiments for a kind of self-lubricating slide-and-guide of the utility model assembly, it comprises guide pin bushing 1 and the guide pillar 6 that matches with guide pin bushing 1, be provided with the shoe cream room A and the oil strain chamber E that are interconnected in the described guide pillar 6, be provided with plug screw 2, on shoe cream room A and interface that oil strain chamber E links to each other, be provided with valve port B in the import of shoe cream room A, valve port B is provided with steel ball 4, sphere is provided with stage clip 3 on the steel ball 4, and lower peripheral surface is provided with top spring 5, and guide pillar (6) is provided with the horizontal oil duct C that links to each other with E top, oil strain chamber; The periphery of described guide pillar 6 is provided with the outer oil duct D of the guide pillar that links to each other with horizontal oil duct C; After adopting structure of the present utility model,, can conveniently realize using commonplace common guide pillar structure on the present mould, shoulder guide pillar structure, removable guide pillar structure and independent guide pillar structure are arranged by the different fixing connected mode of guide pin bushing 1 and guide pillar 6.

Operation principle of the present utility model is as follows, can stablize the mixed film friction state that is in order to make the slide-and-guide assembly, give the working surface fuel feeding incessantly, at first lubricating oil is joined shoe cream room A from the tank filler sleeve of plug screw 2, according to of the requirement of work mould to lubricating, adjust the operating position of plug screw 2, make steel ball 4 under the effect of top spring 5, form certain oil dripping passage; During press work, if the working stability vibrations are less, the amplitude that steel ball 4 produces is also just less, and oil inlet quantity is relatively just few, promptly can satisfy the lubricating requirement of better operating mode; If extraneous vibration is bigger, the amplitude that steel ball 4 produces is just big, and valve B aperture just increases, and oil inlet quantity is relatively just big, can satisfy the lubricating requirement of relatively poor operating mode; After lubricating oil entered oil strain chamber E, the impurity in the oil was deposited to the bottom of oil pocket under the effect of gravity; The oil of oil strain chamber E flows into the outer oil duct D of guide pillar by horizontal oil duct C; When guide pin bushing 1 entered guide pillar 6 guiding, outer oil duct D brought lubricating oil into the guiding rubbing surface by guide pillar, when guide pin bushing 1 is up with mould, the lubricating oil of the outer oil duct D of guide pillar upwards was with, and was coated in guide pillar 6 working faces uniformly, formed stable mixed lubrication.After quitting work, screw plug screw 2, steel ball 4 sealing valve port B under the effect of stage clip 3, fuel cut-off.

Claims

1, a kind of self-lubricating slide-and-guide assembly, comprise guide pin bushing (1) and the guide pillar (6) that matches with guide pin bushing (1), it is characterized in that: be provided with the shoe cream room (A) and oil strain chamber (E) that are interconnected in the described guide pillar (6), import at shoe cream room (A) is provided with plug screw (2), on shoe cream room (A) and interface that oil strain chamber (E) links to each other, be provided with valve port (B), valve port (B) is provided with steel ball (4), steel ball (4) is gone up sphere and is provided with stage clip (3), lower peripheral surface is provided with top spring (5), and guide pillar (6) is provided with the horizontal oil duct (C) that links to each other with top, oil strain chamber (E).

2, self-lubricating slide-and-guide assembly according to claim 1 is characterized in that: the periphery of described guide pillar (6) is provided with the outer oil duct (D) of the guide pillar that links to each other with horizontal oil duct (C).