TW201302576A - A guide device of a guide carrier moving on a straight and curved composite track - Google Patents

Abstract

The present invention provides a guide device of a guide carrier moving on a straight and curved composite track that includes a track set having at least one straight track being linear extension, at least one curved track extending from one end of the straight track forming an arc shape; a carrier that slides on the track set and has a body disposing on the track set, at least one air bearing disposing in the body inside and between the body and the track set, a rolling section disposing in the body inside and between the body and the track set. Therefore, when the carrier shifts in the straight track of the track set, the air bearing lets the body air suspend on the straight track, and when the carrier shifts in the curved track of the track set, the rolling section connects the curved track.

Description

Guide structure for guiding the carrier to move on the straight curved composite track

The present invention relates to the motion guiding technique of an article, and more particularly to a guiding structure for guiding a carrier to move on a straight curved composite track.

According to the general transportation technology, the technology of using the orbit to provide the direction of motion guidance is a common technology widely used in various industrial fields, and among them, in the field of industrial product manufacturing, linear slides and the like It is known that the device provides a specific application of the direction of motion guidance by means of the orbit, so as to provide a linear guiding direction of linear reciprocation.

As far as the demand of the industry is concerned, the technology of providing the direction of the linear guidance is inherently necessary, but it cannot fully meet the demand of the direction of the industrial demand curve. For this reason, the combination of the straight line and the curve has been revealed in the prior art. The track member is arranged to slide on the composite track, and the carrier is guided to slide along the preset path by the composite track to conform to the actual required motion track of the industry.

However, in order to provide a straightforward motion guiding technique, in order to make the sliding between the carrier and the sliding composite track smooth, the intervention of appropriate rolling or sliding techniques is necessary, more specifically, The rolling or sliding structure between the carrier and the track is usually formed by a bearing or a ball. The cost of the rolling structure formed by the bearing is low, but the guiding device is guided. The positional accuracy is not ideal, and the rigidity is also poor, and it cannot be applied to an industrial field requiring high-precision manufacturing conditions. However, the rolling structure composed of balls can provide a high guiding device. The positional accuracy, but its poor rigidity and the actual application state required to lubricate the balls, make these guides still not perfect.

Accordingly, it is a primary object of the present invention to provide a guiding structure for guiding a carrier to move on a straight curved composite track, which provides better positional accuracy while providing better rigidity and reduces maintenance without lubrication. cost.

Therefore, in order to achieve the above object, the guiding structure for guiding the carrier to move on the straight curved composite track comprises a rail member having at least a straight rail extending in a straight line, at least one curved rail. And extending from one end of the straight rail to an arc shape; a carrier member is slidably disposed on the rail member, and has a body having a dome shape, and the open end is embedded on the rail member, at least one air bearing Between the body and the rail member, a rolling portion is disposed on the inner side of the body and between the body and the rail member; thereby, when the carrier is on the rail When the displacement of the piece is on the straight rail, the air bearing is used to float the body on the straight rail, and when the carrier is displaced on the curved rail of the rail member, the rolling portion and the curved rail are rolled. Pick up.

Hereinafter, a preferred embodiment of the present invention will be further described with reference to the drawings, wherein:

The first figure is a perspective view of a preferred embodiment of the present invention.

The second drawing is a partially exploded perspective view of a preferred embodiment of the present invention.

The third drawing is a partial perspective view of a preferred embodiment of the present invention.

Figure 4 is a cross-sectional view of the carrier on the straight rail in a preferred embodiment of the present invention.

Figure 5 is a cross-sectional view of the carrier in a preferred embodiment of the present invention.

Figure 6 is a cross-sectional view of the carrier on the curved track in a preferred embodiment of the present invention.

Figure 7 is another cross-sectional view of the carrier on the curved track in a preferred embodiment of the present invention.

Referring to the drawings, in a preferred embodiment of the present invention, a guiding structure (10) for guiding a carrier to move on a straight curved composite track is provided, which mainly comprises a rail member (20) and a a carrier (30), wherein: the rail member (20) is annular, has two straight rails (21), and is parallel to each other and each extends an appropriate length, and the two arc-shaped curved rails (22) are respectively The two arc ends are connected to one end of each of the long axes of the straight rails (21); further, each of the straight rails (21) has a straight rail body (211) having a substantially rectangular cross section, and Each of the curved rails (22) has an arc-shaped curved rail body (221), which is bridged between one ends of the long axes of the straight rails (211), has a rectangular cross section and a width smaller than each of the straight rails. The width of the rail body (211) and the two arc-shaped guide bars (222) are respectively protruded parallel to each other on the side rail surface of the curved rail body (221), and are spaced apart from each other.

The carrier member (30) is slidably disposed on the rail member (20), and is slidable on each of the straight rail (21) and the curved rail (22), and has a substantially dome-shaped body (31). The open end is embedded on the rail member (20), and the two first air bearings (32) are respectively disposed opposite to each other on opposite sides (311) (312) of the inner side of the main body (31). The two air bearings (33) are disposed on the downward end surface (313) of the inner side of the closed end of the body (31), and the width of the second air bearing (33) is smaller than the distance between the guide bars (222). a rolling portion (34) is disposed on the downward end surface (313) of the body (31); further, the rolling portion (34) has two rollers (341) which are fixed to each other in parallel On the lower end surface (313) of the body (31), and on both sides of the second air bearing (33), the rotation axes of the rollers (341) are parallel to each other.

The body (31) is slidably moved on the rail member (20) by the air bearing (32) (33) and the roller portion (34), wherein: When the member (30) slides on the straight rail (21), the body (31) is floated on the straight rail body by the first air bearing (32) and the second bearing (33). (211), and the force applied by the external force causes the carrier (20) to slide along the long axis direction of the corresponding straight rail body (211); when the carrier member (30) is on the curved rail (22) When the upper air slides, the body (31) is floated on the curved rail body (221) by the second air bearing (33), and the two rollers (341) are rolled to the two guides. The strips (222) are opposite each other on the end side so that the carrier (30) is slid along the arcuate guiding path provided by the curved rail (22).

Accordingly, the guiding structure (10) can perform high-precision movement on each of the straight rails (21) through the air bearings (33) (34), and provides better rigidity, and the air bearing is The air gap formed by the high pressure gas provides a frictionless relative displacement between the different components, and the maintenance requirement of lubrication required in the case of a ball bearing or a ball structure as in the prior art can be dispensed with. 10) When guiding the curve, on the one hand, a frictionless air bearing is used to maintain a gap between the body (31) and the rail member (20), so that the body (31) and the curved rail body ( 221) The situation occurs without friction. On the other hand, the roller (341) and each of the guide bars (222) are rolled to guide the carrier (30) along the curved track ( 22) The displacement of the arc guiding direction provided is such that the guiding structure (10) can achieve high precision, high rigidity and no lubrication maintenance requirement compared with the prior art. Better performance.

(10). . . Guide structure for guiding the carrier to move on the straight curved composite track

(20). . . Rail piece

(twenty one). . . Straight track

(211). . . Straight rail

(twenty two). . . Curved track

(221). . . Curved track

(222). . . Guide bar

(30). . . Carrier

(31). . . Ontology

(311) (312). . . Opposite end face

(313). . . Down end face

(32). . . First air bearing

(33). . . Second air bearing

(34). . . Rolling section

(341). . . Wheel

The first figure is a perspective view of a preferred embodiment of the present invention.

The second drawing is a partially exploded perspective view of a preferred embodiment of the present invention.

The third drawing is a partial perspective view of a preferred embodiment of the present invention.

Figure 4 is a cross-sectional view of the carrier on the straight rail in a preferred embodiment of the present invention.

Figure 5 is a cross-sectional view of the carrier in a preferred embodiment of the present invention.

Figure 6 is a cross-sectional view of the carrier on the curved track in a preferred embodiment of the present invention.

Figure 7 is another cross-sectional view of the carrier on the curved track in a preferred embodiment of the present invention.

(10). . . Guide structure for guiding the carrier to move on the straight curved composite track

(20). . . Rail piece

(twenty one). . . Straight track

(twenty two). . . Curved track

(30). . . Carrier

Claims (6)

A guiding structure for guiding a carrier to move on a straight curved composite track comprises: a rail member having at least a straight rail extending in a straight line, and at least one curved rail extending outward from one end of the straight rail a carrier member is slidably disposed on the rail member, and has a body having a meandering shape, and the open end is embedded on the rail member, and at least one air bearing is disposed on the inner side of the body and interposed therebetween. Between the rail member, a rolling portion is disposed on the inner side of the body and between the body and the rail member; thereby, when the carrier is displaced on the straight rail of the rail member, the air bearing is used The body is floated on the straight rail, and when the carrier is displaced on the curved rail of the rail member, the rolling portion is brought into contact with the curved rail. The guide structure for guiding the carrier to move on the straight curved composite track according to the first aspect of the patent application, wherein the carrier has three air bearings, which are respectively disposed on three sides of the inner surface of the body. . The guide structure for guiding the carrier to move on the straight curved composite track according to the first aspect of the patent application, wherein the curved track further comprises an arc-shaped curved rail body, and the two arc-shaped guide strips are parallel and spaced apart from each other. They are respectively protruded from the upper rail surface of one of the curved rails. The guiding structure for guiding the carrier to move on the straight curved composite track according to the third aspect of the patent application, wherein the rolling portion further comprises two rollers, which are parallel to each other, and are respectively fixed at one end of the rotating shaft The inner end surface of the closed end of the body is closed, so that each of the rollers is wound on the corresponding guide bar of the curved rail. The guiding structure for guiding the carrier to move on the straight curved composite track according to the fourth aspect of the patent application, wherein each of the guiding strips is rolled on the opposite side end face with the corresponding roller. A guiding structure for guiding a carrier to move on a straight curved composite track according to the first aspect of the patent application, wherein the straight rail has a straight rail extending in a straight line, and the curved rail has an arc extending The rail body and the width of the curved rail body is smaller than the width of the straight rail body.