CN2578035Y

CN2578035Y - Guide rail of machine tool in rolling guiding movement

Info

Publication number: CN2578035Y
Application number: CN 02260472
Authority: CN
Inventors: 盛焕君
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-29
Filing date: 2002-09-29
Publication date: 2003-10-08
Anticipated expiration: 2012-09-29

Abstract

The utility model discloses a guide rail of a machine tool in rolling guiding movement, which is characterized in that sliding surfaces at both sides between a guide rail of a machine body and a carriage, and between a carriage and another carriage are provided with rolling friction pieces; each friction piece comprises two fixed guide rails, two rolling guide rails sliding opposite to the fixed guide rails; rolling elements separaetd by a retaining holder are arranged in each pair of rolling guide rails and the fixed guide rails; the rolling elements can be steel balls or steel columns so as to realize rolling friction. The design of the utility model has the advantages of low coefficient of rolling friction, small rolling guide clearance, and high moving precision, and is favorable for processing high-precision mechanical products.

Description

The machine tool guideway that the guiding of rolling moves

Technical field

The utility model relates to the machine tool guideway structure.

Background technology

Machine tool guideway comprises bed ways and carriage rail, is the benchmark architecture of saddle, middle carriage, the relative sliding motion of upper slide rest.The cast iron guide rail that original machine tool guideway all adopts is not wear-resisting, precision is low, the life-span is short, progressively replaced by advanced technology, technology, as application number is " machine tool guideway new construction " wear-resisting guide rail of 00249514.7 split combination, by the enforcement on the miniature instrument lathe, proved all to be better than traditional cast iron guide rail in its precision, service life.But along with the machining accuracy of machine components is more and more higher, the guide rail that adopts angle and plane to coincide, little as fit clearance, move dumb; Big as fit clearance, precision is just low, and coefficient of friction is still similar with the cast iron guide rail, has just improved material, the hardness of mobile working face, but also needs artificial shovel to scrape preparation when assembling, and is higher to workman's specification requirement, so the high machine components of also difficult machining accuracy.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the defective of prior art and provides the rolling guiding that a kind of coefficient of friction is low, the gap is little, precision is high mobile machine tool guideway.

The technical scheme that the utility model solves the problems of the technologies described above is: the machine tool guideway that the guiding of rolling moves, comprise fuselage and planker, the both sides sliding surface that it is characterized in that described fuselage guide rail and planker, planker and planker is provided with the rolling friction part, this rolling friction part comprises the rolling guide of 2 fixing fixed guides, the slippage of 2 relative fixed guide rails, is provided with by the isolated rolling element of retainer in the every pair of rolling guide and the fixed guide.

Described rolling element is a steel ball.

Described rolling element is a steel column.

Described 2 fixed guides are separately fixed on the fuselage guide rail on plane, the saddle both sides on plane on plane, the middle carriage; Article 2, rolling guide is located at the both sides of baseplane in baseplane in the saddle, the interior baseplane of middle carriage, the upper slide rest respectively, and wherein 1 rolling guide is fixed, and another connects into the adjustable gaps connection by set screw, and it is fastening by holding screw to regulate the back.

Described fixed guide and rolling guide are provided with half slot or the V-shaped groove that rolling element is set.

Compared with prior art, it is the little rolling friction of coefficient of friction that the utility model has adopted the fuselage guide rail and the relative slip of planker, the gap is little and do not influence mobile flexibility, mobile accuracy improves, the engineering goods that help machining high-precision, more be applicable to the precise numerical control machine guide rail, improve service life greatly.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the A place enlarged drawing of Fig. 1;

Fig. 3 is fixing, the rolling guide sectional view of steel ball for rolling element;

Fig. 4 is fixing, the rolling guide sectional view of steel column for rolling element;

Fig. 5 is the retainer structure chart.

The specific embodiment

In conjunction with above-mentioned accompanying drawing embodiment the utility model is described in detail again.

The machine tool guideway (referring to Fig. 1-5) that the guiding of rolling moves, comprise fuselage 1 and planker, fuselage is by plain cast iron system, planker comprises saddle 3, middle carriage 4, upper slide rest (not shown), the both sides sliding surface of fuselage guide rail and planker, planker and planker is provided with the rolling friction part, the last plane that is the forward and backward guide rail of fuselage is provided with 2 by the fixing fixed guide 2 of screw, the baseplane is provided with 2 rolling guides 9 in the saddle of fuselage guide rail slippage, wherein 1 is fixed, and available location pin and holding screw are fixed.1 is clearance adjustable type in addition, and the adjusting in gap is realized that by set screw 5 gap adjustment back well is fastening by holding screw.Be provided with in the every pair of rolling guide 9 and the fixed guide 2 by the isolated rolling element 11 of retainer 10, rolling element can be steel ball or steel column, so be processed with half slot 12 that steel ball is set or the V-shaped groove 13 that steel column is set on fixed guide and the rolling guide.

Rolling friction part between middle carriage and saddle, upper slide rest and the middle carriage is identical with the structure of the interior baseplane of saddle with being located on the fuselage guide rail plane.

Fixed guide 2 and rolling guide 9 are made by the high-quality bearing steel, also can make of the material that quenching hardness is higher, wearability is good, form through fine finishining (grinding), must manually not shovel and scrape.

When the utility model was applied on the little instrument lathe, moving by manual control of planker drove rotating disk 7 rotations by handle 6, by being connected connecting rod 8 motions on the rotating disk eccentric position, drove the planker that is connected with the connecting rod other end and moved.

Claims

1. machine tool guideway that the guiding of rolling moves, comprise fuselage (1) and planker, the both sides sliding surface that it is characterized in that described fuselage guide rail and planker, planker and planker is provided with the rolling friction part, this rolling friction part comprises the rolling guide (9) of 2 fixing fixed guides (2), the slippage of 2 relative fixed guide rails, is provided with by the isolated rolling element (11) of retainer (10) in the every pair of rolling guide and the fixed guide.

2. the machine tool guideway that rolling guiding according to claim 1 moves is characterized in that described rolling element (11) is a steel ball.

3. the machine tool guideway that rolling guiding according to claim 1 moves is characterized in that described rolling element (11) is a steel column.

4. the machine tool guideway that moves according to claim 1,2 described rolling guiding is characterized in that described 2 fixed guides (2) are separately fixed at plane on the fuselage guide rail, saddle (3) is gone up the upward both sides on plane of plane, middle carriage (4); Article 2, rolling guide (9) is located at the both sides of baseplane in saddle (3) inner bottom surface, the interior baseplane of middle carriage (4), the upper slide rest respectively, wherein 1 rolling guide is fixed, another connects into the adjustable gaps connection by set screw (5), and it is fastening by holding screw to regulate the back.

5. the machine tool guideway that moves according to claim 1,3 described rolling guiding is characterized in that described 2 fixed guides (2) are separately fixed at plane on the fuselage guide rail, saddle (3) is gone up the upward both sides on plane of plane, middle carriage (4); Article 2, rolling guide (9) is located at the both sides of baseplane in the interior baseplane of saddle (3), the interior baseplane of middle carriage (4), the upper slide rest respectively, wherein 1 rolling guide is fixed, another connects into the adjustable gaps connection by set screw (5), and it is fastening by holding screw to regulate the back.

6. the machine tool guideway that rolling guiding according to claim 4 moves is characterized in that described fixed guide (2) and rolling guide (9) are provided with half slot (12) or the V-shaped groove (13) that rolling element (11) are set.

7. the machine tool guideway that rolling guiding according to claim 5 moves is characterized in that described fixed guide (2) and rolling guide (9) are provided with half slot (12) or the V-shaped groove (13) that rolling element (11) are set.