CN215980462U - Self-parallel rolling linear guide rail - Google Patents

Abstract

The utility model discloses a self-parallel rolling linear guide rail, a sliding block is connected on the guide rail in a sliding manner, two reversers are fixed on the front side and the rear side of the sliding block, rolling lines roll between the sliding block and the guide rail and realize cyclic reciprocating motion through the reversers, two rectangular bosses are symmetrically arranged on the left side wall and the right side wall of the guide rail, a first right-angle surface is formed between the upper end surface of each rectangular boss and the side wall of the guide rail, a second right-angle surface is formed between the lower end surface of each rectangular boss and the side wall of the guide rail, four groups of rolling lines are arranged, two groups of rolling lines pass through the first right-angle surfaces on the two sides of the guide rail when performing the cyclic reciprocating motion, and the other two groups of rolling lines pass through the second right-angle surfaces on the two sides of the guide rail. The self-parallel linear guide rail pair and the traditional rolling linear guide rail pair are used together, so that the problem of service life of the guide rail pair caused by poor installation accuracy of the traditional rolling linear guide rail pair can be solved.

Description

Self-parallel rolling linear guide rail

The technical field is as follows:

the utility model relates to a self-parallel rolling linear guide rail.

Background art:

with the increasingly wide application of the guide rail pair, at present, a plurality of occasions with low requirements on use precision also start to use the rolling guide rail pair, and the rolling guide rail pair mainly comprises two conditions:

1) in order to save cost, the installation condition is seriously poor, the installation parallelism of the guide rail pair is seriously out of tolerance, and because the rolling linear guide rail pair has the freedom degree only in the running direction of the slide block, huge internal force is brought to the guide rail pair, and even the guide rail pair is damaged instantly.

2) The installation foundation with higher precision is manufactured at great cost, certain cost is spent on calling out the installation foundation to meet the installation requirement, and finally the service life of the guide rail pair is ensured, but the operation precision of the debugging is far beyond the design requirement of equipment, so that certain resource waste is caused.

Therefore, the self-parallel linear guide rail pair is invented, and the service life problem of the guide rail pair caused by poor installation accuracy of the traditional rolling linear guide rail pair can be solved by using the self-parallel linear guide rail pair and the traditional rolling linear guide rail pair together.

The utility model content is as follows:

the present invention provides a self-parallel rolling linear guide rail to solve the problems of the prior art.

The technical scheme adopted by the utility model is as follows:

the utility model provides a from parallel rolling linear guide, includes to return ware, slider, guide rail and the roll line of constituteing by a plurality of steel ball, slider sliding connection is on the guide rail, and two are returned the ware and are fixed in the front and back both sides of slider, and the roll line rolls between slider and guide rail to realize circulating reciprocating motion through returning the ware, the symmetry is equipped with two rectangle bosss on the lateral wall about the guide rail, forms first right-angle face between the up end of rectangle boss and the lateral wall of guide rail, forms the second right-angle face between the lower terminal surface of rectangle boss and the lateral wall of guide rail, and the roll line sets up four groups, and two sets of roll lines do through the first right-angle face of guide rail both sides during circulating reciprocating motion, the second right-angle face of two sets of roll lines process guide rail both sides in addition.

Furthermore, a U-shaped groove is formed in the sliding block, the sliding block is connected to the guide rail through the U-shaped groove in a sliding mode, the tail ends of two side edges of the U-shaped groove are bent inwards by 90 degrees and form limiting flanges, two steel ball slideways are correspondingly formed between the two limiting flanges and two second right-angle surfaces, two steel ball slideways are correspondingly formed between two groove angles of the U-shaped groove and two first right-angle surfaces, and four groups of rolling lines are correspondingly arranged in the four steel ball slideways.

Furthermore, two groove angles of the U-shaped groove are arc angles.

Furthermore, each limit rib is provided with an arc groove for rolling the rolling line.

The utility model has the following beneficial effects:

the self-parallel linear guide rail pair and the traditional rolling linear guide rail pair are used together, so that the problem of service life of the guide rail pair caused by poor installation accuracy of the traditional rolling linear guide rail pair can be solved.

Description of the drawings:

FIG. 1 is a block diagram of the present invention.

FIG. 2 is a block diagram of the present invention.

Fig. 3 is a structural view showing the use of the present invention in combination with a conventional rolling linear guide pair.

The specific implementation mode is as follows:

the utility model will be further described with reference to the accompanying drawings.

Referring to fig. 1 and 2, the self-parallel rolling linear guide rail of the utility model comprises a return device 1, a slide block 2, a guide rail 4 and a rolling line 3 consisting of a plurality of steel balls, wherein the slide block 2 is connected on the guide rail 4 in a sliding manner, the two return devices 1 are fixed on the front side and the rear side of the slide block 2, the rolling line 3 rolls between the slide block 2 and the guide rail 4, and the return devices 1 realize circular reciprocating motion.

Two rectangular bosses 41 are symmetrically arranged on the left side wall and the right side wall of the guide rail 4, a first right-angle surface 42 is formed between the upper end surface of each rectangular boss 41 and the side wall of the guide rail 4, a second right-angle surface 43 is formed between the lower end surface of each rectangular boss 41 and the side wall of the guide rail 4, four groups of rolling wires 3 are arranged, the two groups of rolling wires 3 pass through the first right-angle surfaces 42 on the two sides of the guide rail 4 when performing circular reciprocating motion, and the other two groups of rolling wires 3 pass through the second right-angle surfaces 43 on the two sides of the guide rail 4.

The slide block 2 is provided with a U-shaped groove, and two groove angles of the U-shaped groove are arc angles. The slide block 2 is connected on the guide rail 4 through a U-shaped groove in a sliding manner, the tail ends of two side edges of the U-shaped groove are bent inwards by 90 degrees to form limiting flanges 21, and each limiting flange 21 is provided with an arc groove for the rolling wire 3 to roll.

Two steel ball slideways are correspondingly formed between the two limiting flanges 21 and the two second right-angle surfaces 43, two steel ball slideways are correspondingly formed between the two groove angles of the U-shaped groove and the two first right-angle surfaces 42, and the four groups of rolling wires 3 are correspondingly arranged in the four steel ball slideways.

Referring to fig. 3, the self-parallel rolling linear guide 6 of the present invention is used together with a conventional rolling linear guide 8, the conventional rolling linear guide 8 is used as a main guide pair, and the self-parallel rolling linear guide 6 of the present invention is used as a sub guide pair.

The A position in the main guide rail pair is of an arc structure and is contained with the rolling steel ball, and almost no or only little degree of freedom is provided in the direction of an arrow in the main guide rail pair, so that the guide rail is adopted as the main guide rail to ensure the use stability of the equipment.

Vice guide rail pair adopts from parallel guide pair, right angle face B (planar structure) that sets up in the guide rail 4, so vice guide rail has certain degree of freedom in the arrow point direction, in the 2 use of slider, when meetting the resistance of arrow point direction, can do certain motion in the arrow point direction to imitate releasing the huge internal force that brings because of the vice installation nonparallel of guide rail, avoided the problem that life is low because of the vice installation depth of parallelism error of guide rail is great.

The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the utility model and these modifications should also be considered as the protection scope of the utility model.

Claims (4)

1. A self-parallel rolling linear guide rail is characterized in that: comprises a reverser (1), a sliding block (2), a guide rail (4) and rolling lines (3) consisting of a plurality of steel balls, wherein the sliding block (2) is connected on the guide rail (4) in a sliding way, the two reversers (1) are fixed on the front side and the rear side of the sliding block (2), the rolling lines (3) roll between the sliding block (2) and the guide rail (4) and realize the circular reciprocating motion through the reversers (1), the left side wall and the right side wall of the guide rail (4) are symmetrically provided with two rectangular bosses (41), a first right-angle surface (42) is formed between the upper end surface of each rectangular boss (41) and the side wall of the guide rail (4), a second right-angle surface (43) is formed between the lower end surface of each rectangular boss (41) and the side wall of the guide rail (4), the rolling lines (3) are provided with four groups, the two groups of rolling lines (3) pass through the first right-angle surfaces (42) on the two sides of the guide rail (4) during the circular reciprocating motion, the other two groups of rolling lines (3) pass through second right-angle surfaces (43) at two sides of the guide rail (4).

2. The self-parallel rolling linear guide of claim 1 wherein: be equipped with the U-shaped groove on slider (2), slider (2) are through U-shaped groove sliding connection on guide rail (4), the end on the both sides limit in U-shaped groove all inwards 90 bend and form spacing flange (21), correspond between two spacing flange (21) and two second right angle face (43) and form two steel ball slides, correspond between two groove angle and two first right angle face (42) of U-shaped groove and form two steel ball slides, four groups of roll lines (3) correspond and arrange in four steel ball slides.

3. The self-parallel rolling linear guide of claim 2 wherein: two groove angles of the U-shaped groove are arc angles.

4. The self-parallel rolling linear guide of claim 2 wherein: each limit flange (21) is provided with an arc groove for the rolling wire (3) to roll.

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