TW201407058A - Motion guide device - Google Patents

Abstract

This motion guide device is provided with: a raceway member on which rolling body rolling sections are formed; a movement member on which loaded rolling body rolling sections facing the rolling body rolling sections are formed and which have rolling body return passages extending substantially parallel to the loaded rolling body rolling sections; a pair of lid members (6, 6) in which direction change paths (16) for connecting the loaded rolling body rolling sections and the rolling body return passages are formed; and rolling bodies arranged in a rollable manner within rolling body circulation routes configured from the loaded rolling body rolling sections, rolling body return passages, and direction change paths (16). The movement member and the lid members are provided with affixation means. An arbitrary one of the affixation means is provided in each of the vicinities (A) of scooping sections (16a) at which the direction change paths (16) formed in the lid members (6) scoop rolling bodies rolling from the loaded rolling body rolling sections. Other arbitrary affixation means (21, 22) are provided at positions close to the side opposite the side on which the raceway rail is installed. As a result of this configuration, parts of the motion guide device have high strength, and the motion guide device is highly durable and highly reliable.

Description

Motion guiding device

The present invention relates to a motion guiding device for a linear guide or the like for linear or curved movement of a moving body such as a guiding platform.

As a mechanical component for guiding a linear motion or a curved motion of a moving body such as a platform, a motion guiding device for rolling a rolling body such as a ball or a roller is provided in the guiding portion, and since a brisk motion can be obtained, the robot can be utilized. Work machines, semiconductor or liquid crystal manufacturing equipment, medical equipment, and other fields.

A linear guide as a motion guiding device is provided with a rail rail attached to a base, and a moving block that can be assembled to move relative to the rail rail and to mount a moving body. A rolling body rolling portion extending in the longitudinal direction is formed on the rail rail. On the other hand, a moving rolling element rolling portion that faces the rolling element rolling portion is formed in the moving block, and a rolling element circulation path that circulates the rolling element is provided. Further, the rolling system is arbitrarily arranged between the rolling element rolling portion of the rail rail and the load rolling element rolling portion of the moving block. If the moving block linearly moves relative to the track rail, the rolling elements arranged between the track rail and the moving block will roll and infinitely circulate in the rolling body circulation path. Moreover, such linear guides require design and component selection that are assumed to be stable for a long period of time because of the need for highly reliable mechanical component parts.

Further, as a person who discloses such a motion guiding device, there are the following Patent Documents 1 and the like.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2011-153669

However, in the conventional linear guide rail, a rolling element body having a rolling element rolling portion which is formed to face the rolling element rolling portion of the rail rail and having a rolling body extending substantially in parallel with the rolling portion of the load rolling body is formed. a moving block body (moving member) of the return path, and a pair of direction switching paths (caps) formed on the front and rear ends of the moving block body in the moving direction of the moving block body and formed with the connecting load rolling element rolling portion and the rolling element return path The component) constitutes the above moving block. Further, the moving block main body and the pair of end plates are connected and fixed only by the position of the outer side or the side of the fixing means such as a bolt, by the presence of the direction changing path formed in the end plate.

However, in the above-described conventional fixing structure, since only the portion of the direction switching path that is separated from the position of the scooping rolling element is connected and fixed, for example, the impact load with respect to the scooping of the rolling element or the rolling element is caused by the circulation failure. The inner side of the conversion path presses the load (internal pressure) of the end plate, and the end plate becomes the state of the cantilever beam. Therefore, if a bending stress exceeding the design value is generated for the end plate, there is a problem that the end plate is broken or the like. In particular, when a linear guide such as a moving block to a relative movement of a track rail is used at an ultra-high speed, or a linear guide such as a foreign matter invading into a rolling path of a rolling element, the load applied to the end plate is applied. This increases or increases the likelihood of undesirable circulation of the rolling elements. Therefore, it is desired to realize a motion guiding device which is high in strength and durability of a part which can preferably achieve a guiding motion even in such a case.

The present invention has been made in view of the problems existing in the above prior art. The purpose of the invention is to provide a motion guiding device which has high strength and durability and high reliability by firmly connecting and fixing a moving block body (moving member) and a pair of end plates (cover members). .

The motion guiding device of the present invention includes: a rail member having a rolling element rolling portion; and a moving member formed with a rolling element rolling portion facing the rolling element rolling portion, and having the above a rolling element return passage in which the load rolling element rolling portion extends substantially in parallel; a pair of cover members are disposed on the front and rear ends of the moving member in the moving direction, and are formed to connect the load rolling element rolling portion and the rolling a direction switching path of the body return passage; and a plurality of rolling elements arranged to be freely arranged in a rolling element circulation path formed by the load rolling element rolling portion, the rolling element return passage, and the direction changing path; The motion guiding device is characterized in that the moving member and the cover member are provided with a plurality of fixing means for fixing the moving member and the cover member, and any one of fixing means is provided on the above-mentioned cover member. The direction change path is in the vicinity of the scooping portion from which the rolling element is shoveled from the rolling element rolling portion of the load rolling body Another system of fixing means disposed on the track rail is provided near the counter-position of the side.

According to the present invention, since the moving member can be firmly connected and fixed to the pair of cover members, it is possible to provide a motion guiding device which has high strength of parts and high durability and reliability.

1‧‧‧ Track rails

1a‧‧‧Rolling groove

2‧‧‧Mounting holes

3‧‧‧ balls

4‧‧‧moving block

5‧‧‧moving block ontology

5a‧‧‧Central Department

5b‧‧‧ Sidewall

5c‧‧‧Load ball rolling groove

5d‧‧‧Ball return path

6‧‧‧ (as a cover member) end plate

8‧‧‧fastener belt

8a‧‧‧ spacers

8b‧‧‧Connecting Department

10, 14‧‧‧ guiding slot

11, 13‧‧‧ resin molded body

12‧‧‧through holes

16‧‧‧direction conversion path

16a‧‧‧Shovel

17‧‧‧Return to the block

21, 22‧‧‧ (known) bolt holes

71‧‧‧ (as a fixed means of this embodiment) bolt holes

81, 91‧‧‧Fixed means by welding

121‧‧‧ welding means

131‧‧‧Two belts

141‧‧‧ a belt

151‧‧‧ Pressing Department

A‧‧‧A zone in which the fixing means of the embodiment is provided

The center of the base of the α‧‧‧ revolving groove

Center line of β‧‧‧ (through the path center of the direction change path 16)

Γ‧‧‧ (Using the fixed means of the conventional method and the fixed means of this embodiment)

Fig. 1 is a perspective view showing a partial longitudinal section of the motion guiding device of the embodiment.

Fig. 2 is a longitudinal sectional view showing the internal structure of the motion guiding device of the embodiment.

Fig. 3 is a view showing a cross section of a ball circulation path of the motion guiding device of the embodiment.

Fig. 4 is a view for explaining the design concept of the end plate of the embodiment.

Fig. 5 is a conceptual diagram for explaining a difference between the fixed state of the moving block body (moving member) and the end plate (cover member) of the present embodiment and the prior art, and Fig. 5(a) shows the state of the embodiment, and Figure (b) shows the state of the art.

Fig. 6 is a view showing the relationship between the position of the region A in which the fixing means of the embodiment is provided and the position of the fixing means provided from the prior art.

Fig. 7 is a view showing an example of a configuration in which the fixing means of the embodiment is bolted.

Fig. 8 is a view showing an example of a configuration in which the fixing means of the embodiment is welded and fixed.

Fig. 9 is a view showing a configuration example different from Fig. 8 in the case where the fixing means of the embodiment is welded and fixed.

Fig. 10 is a view showing an end plate to which various aspects of the embodiment can be applied.

Fig. 11 is a view showing an end plate to which various aspects of the embodiment can be applied.

Fig. 12 is a view showing an end plate to which various aspects of the embodiment can be applied.

Fig. 13 is a view showing a fixing means to which various aspects of the embodiment can be applied.

Fig. 14 is a view showing a fixing means to which various aspects of the embodiment can be applied.

Fig. 15 is a view showing a fixing means to which various aspects of the embodiment can be applied.

Hereinafter, preferred embodiments for carrying out the invention will be described using the drawings. Be explained. Further, the following embodiments are not intended to limit the inventors of the respective claims, and all combinations of the features described in the embodiments are not necessarily the means for solving the invention.

First, the overall configuration of the motion guiding device of the present embodiment will be described. 1 is a partial longitudinal cross-sectional view of the motion guiding device of the present embodiment, FIG. 2 is a longitudinal sectional view showing the internal structure of the motion guiding device of the present embodiment, and FIG. 3 is a view showing the present embodiment. A cross-sectional view of the ball circulation path of the motion guide of the form. The motion guiding device of this embodiment is called a linear guide rail, and is a device that moves a moving body such as a guiding platform to and from a linear motion with respect to the base.

A rail rail 1 as a rail member is provided on a base (not shown). The mounting holes 2 are provided at equal intervals along the longitudinal direction of the track rail 1 from the upper surface to the lower surface. By using the mounting holes 2 and using bolts or the like, the lower surface of the track rails 1 can be The base is fixed.

Further, the rail rail 1 is formed by extending linearly in a shape of a substantially four-sided cross section. A ball rolling groove 1a extending in the longitudinal direction is formed on the left and right side faces of the rail rail 1 as a rolling element rolling portion. In the present embodiment, the ball rolling groove 1a is formed in two on the left and right side surfaces, and a total of four are formed in total. The cross-sectional shape of the ball rolling groove 1a may be any of a circular arc groove shape composed of a single circular arc or a Gothic arch groove shape composed of two circular arcs. Further, the number of the ball rolling grooves 1a or the contact angle between the ball rolling grooves 1a and the balls 3 can be variously set according to the load of the motion guiding device. Further, in the motion guiding device, since the balls 3 perform the rolling motion, the ball rolling grooves 1a are processed so that the surface roughness becomes small, and the heat treatment is performed so that the hardness becomes high.

As shown in FIG. 2, the track rails 1 can be phased through a plurality of balls 3 A moving block 4 as a moving member is assembled to the moving body. The moving block 4 is composed of a moving block main body 5 made of metal and one of the resin-made end plates 6 as a cover member provided at both end portions in the moving direction of the moving block 4. The moving block body 5 is formed in a saddle shape as a whole, and has a central portion 5a opposed to the upper surface of the track rail 1 and a lower end portion in the width direction from the central portion 5a and is perpendicular to the track rail 1 The left and right sides face the side wall portion 5b. On the inner surface of each of the right and left side wall portions 5b of the moving block main body 5, a load roller rolling groove 5c of two upper and lower, a total of four, is formed as a load rolling relative to the ball rolling groove 1a of the track rail 1. Body rolling groove. Since the plurality of balls 3 also perform the rolling motion in the loaded ball rolling groove 5c, the loaded ball rolling groove 5c is processed so that the surface roughness becomes small, and heat treatment is performed so that the hardness becomes high.

Further, as shown in FIG. 1, a plurality of balls 3 are connected in a string on each ball circulation path by a retainer band 8 as a ball cage. Between the plurality of balls 3, a plurality of spacers 8a forming a cylindrical shape are interposed. The side faces of the plurality of spacers 8a are connected by a pair of belt-shaped connecting portions 8b. A bag portion for holding the balls 3 is formed in the fastener tape 8 by the belt-like connecting portion 8b and the plurality of spacers 8a. Further, as shown in FIG. 2, the connecting portion 8b is configured to protrude beyond the balls 3 when viewed from the traveling direction of the balls 3. On both sides of the loaded ball rolling groove 5c of the moving block main body 5, a guiding groove 10 for guiding the connecting portion 8b which is more protruded than the outer diameter of the ball 3 is processed. The guide groove 10 is formed by processing the resin molded body 11 integrally molded on the moving block body 5. The guide groove 10 is provided with a ball retaining function for preventing the ball 3 from falling off from the loaded ball rolling groove 5c of the moving block 4 when the moving block 4 is removed from the rail rail 1.

As shown in Fig. 2, a ball return passage 5d extending in parallel with the loaded ball rolling groove 5c is provided on each of the left and right side wall portions 5b of the moving block main body 5 as a rolling element return passage. The ball return path 5d is set only in the same number as the load ball rolling groove 5c. the amount. Further, since the diameter of the ball return passage 5d is larger than the diameter of the balls 3, the balls 3 do not receive the load in the ball return passage 5d. The ball 3 is pushed by the subsequent balls 3, or is pulled by the front balls 3 via the fastener tape 8, and moves in the ball return path 5d. The ball return passage 5d is formed by integrally molding the resin molded body 13 in the through hole 12 provided in the moving block main body 5. Further, in the ball return passage 5d, a guide groove 14 for guiding the joint portion 8b of the fastener tape 8 is also processed.

End plates 6 as cover members are attached to both ends of the moving block body 5 in the moving direction. As shown in FIG. 3, a U-shaped direction changing path 16 connecting the loaded ball rolling groove 5c and the ball returning path 5d is formed in the end plate 6, and the structure of the end plate 6 is formed in the end plate 6 in more detail. The direction conversion path 16 is on the outer circumference side. On the other hand, on the end surface of the moving block main body 5, a return piece portion 17 constituting the inner peripheral side of the direction changing path 16 is integrally molded. Therefore, the direction changing path 16 is formed by combining the end plate 6 and the return block portion 17.

The ball returning groove 5c extending in a straight line, the ball returning path 5d extending in parallel with the loaded ball rolling groove 5c, and the U-shaped direction of the connecting load ball rolling groove 5c and the ball returning path 5d are converted. Path 16 forms an annular ball circulation path. A plurality of balls 3 held by the fastener tape 8 are accommodated in the ball circulation path. Moreover, if the moving block 4 is relatively moved to the track rail 1, the plurality of balls 3 will be loaded between the ball rolling groove 1a of the track rail 1 and the loaded ball rolling groove 5c of the moving block 4. Rolling motion on the rolling path. Further, the ball 3 which is rolled to one end of the loaded ball rolling groove 5c of the moving block 4 is scooped up by the scooping portion 16a provided in the end plate 6, and enters the ball return after passing through the U-shaped direction changing path 16. Path 5d. Further, the ball 3 passing through the ball return path 5d enters the loaded ball rolling path again after passing through the direction switching path 16 on the opposite side.

Next, a configuration of fixing the moving block main body 5 and the end plate 6 in the present embodiment will be described. Here, Fig. 4 is a view for explaining the design concept of the end plate of the embodiment. Further, Fig. 5 is a conceptual diagram for explaining a difference between the fixed state of the moving block body (moving member) and the end plate (cover member) of the present embodiment and the prior art, and Fig. 5(a) shows the situation of the embodiment. Figure (b) shows the state of the art. Furthermore, the end plate 6 shown in Fig. 4 indicates the same type as the user of the linear guide.

In the conventional linear guide rail, although the bolt is fastened as a means for fixing the moving block body 5 and the end plate 6, as shown in FIG. 4, since the end plate 6 is formed with the outer peripheral side of the direction changing path 16, Therefore, the portion where the bolt hole is formed, like the bolt hole shown by the symbol 21, is usually disposed on the upper side of the end plate 6 where the space is relatively empty. Further, even if it is assumed that a bolt hole is provided in the vicinity of the direction changing path 16, as in the bolt hole shown by the reference numeral 22, only the portion from the scooping portion 16a of the direction changing path 16 is separated, that is, close to the reverse rail. A bolt hole 22 is provided at a position on the rail setting side.

However, such conventional bolt holes 21, 22 are disposed as shown in FIG. 5(b), since the fixed ends of the bolt holes 21, 22 are biased toward one end of the end plate 6, the end plates 6 will become the state of the cantilever beam. In this case, in particular, since the side to which the scooping portion 16a from which the impact from the rolling element is applied becomes a free end, the end plate 6 is subjected to the impact force from the rolling element from the free end side of the lower strength. Composition. Further, the direction changing path 16 formed in the end plate 6 is formed into the thinnest wall by the center portion (indicated by the symbol α) of the bottom of the rotating groove when the rolling element is rotated. Therefore, when the free end, that is, the scooping portion 16a is applied, When the load of the rolling elements is applied, stress is applied to the central portion α of the bottom of the rotating groove having the lowest strength, and the end plate 6 is broken.

Therefore, in the present embodiment, the shaded area indicated by the symbol A in Fig. 4, that is, the direction changing path 16 formed on the end plate 6, will be rolled from the loaded ball. A fixing means for fixing the moving block main body 5 and the end plate 6 is provided in a region in the vicinity of the scooping portion 16a from which the ball 3 is rolled up. By providing the fixing means of the present embodiment in the vicinity of the scooping portion 16a of the direction changing path 16, as shown in FIG. 5(a), the end plate 6 is fixed at both ends with respect to the moving block body 5. The state of the beam is fixedly connected, so that the fixed state of the moving block body 5 and the end plate 6 is very strong. By adopting the above configuration, it is possible to provide a motion guiding device having high component strength and high durability and reliability.

Further, as for the region A in which the fixing means of the present embodiment is provided, as shown in FIG. 4, when the fixed surface of the end plate 6 and the moving block body 5 are observed in the front view, it can be defined as the direction change of the fixed surface. The central portion α of the bottom of the rotary groove of the path 16 is further located on the side where the track rail is disposed.

Further, in the present embodiment, it has been found that a positional relationship between the position of the region A in which the fixing means of the embodiment is provided and the position of the fixing means provided from the prior art can be set as a preferable positional relationship. That is, as shown in FIG. 6, the direction changing path 16 formed on the end plate 6 is viewed from the front side of the fixed surface side of the moving block main body 5, and the center portion α of the bottom of the rotating groove when the rolling element is rotated is grasped, and By passing through the center line β of the path center of the direction switching path 16, the direction switching path 16 can be divided into four regions corresponding to the first to fourth quadrants by the imaginary lines α and β. Further, it is preferable that the region A provided with the fixing means of the embodiment is set to the IIth quadrant and/or the IIIth quadrant, and the conventional fixing means is set to the first quadrant and/or the IVth quadrant. By providing the fixing means of the present embodiment and the conventional fixing means in this manner, the fixed connection of the end plate 6 at the position of the center portion α of the bottom of the revolving groove can be performed. Furthermore, the positional relationship of such a fixed connection can be defined as a imaginary line that is connected to the fixing means of the present embodiment and a conventional fixing means, and the imaginary line is configured to traverse the groove bottom of the direction changing path 16. The center part α.

The setting conditions of the position of the region A in which the fixing means of the present embodiment is provided have been described above with reference to Figs. 4 to 6 . Next, a specific configuration example of the fixing means of the present embodiment will be described with reference to Figs. 7 to 9 . In addition, FIG. 7 is a view showing a configuration example in which the fixing means of the embodiment is bolted, and FIG. 8 and FIG. 9 are views showing a configuration example in which the fixing means of the embodiment is welded and fixed.

As exemplified in Fig. 7, as the fixing means of the embodiment, a fastening means using a bolt can be employed. As shown in Fig. 7, the bolt holes 21, 22, which are conventional fastening means, are arranged in the first quadrant and the fourth quadrant when they are defined in Fig. 6. On the other hand, the bolt hole 71 as the fixing means of the present embodiment is disposed at a position of the IIIth quadrant of the direction switching path 16 on the upper side and at the IIth quadrant of the direction switching path 16 of the lower side. When the imaginary line γ connecting the bolt holes 21 and 22 and the bolt hole 71 is assumed, the imaginary line γ is configured to traverse the center portion α of the groove bottom of the direction changing path 16 . Therefore, according to the configuration example shown in Fig. 7, the end plate 6 can be firmly fixedly coupled to the moving block main body 5 in a state in which the ends are fixed to the beam. Thereby, it is possible to provide a motion guiding device having high component strength and high durability and reliability.

Further, as for the region of the bolt hole 71 which can be provided as the fixing means of the present embodiment, since the installation region of the bolt holes 21, 22 which is a conventional fastening means must be a narrow region, the bolt hole 71 is required. The size must be smaller than the conventional bolt holes 21, 22. Therefore, in the fixing means of the present embodiment, a fixing means by welding and fixing can be used instead of the fastening means using a bolt. Figs. 8 and 9 show setting regions of the fixing means 81, 91 fixed by welding in the present embodiment corresponding to the positions at which the bolt holes 21, 22 of the conventional fastening means are formed. Furthermore, the fixing means 81, 91 fixed by welding as illustrated in FIGS. 8 and 9 are provided with ribs in advance to the end plate 6, and are fixed. When the end plate 6 and the block body 5 are moved, the ribs are joined by a high-frequency heat source or the like, and the end plate 6 and the moving block body 5 are integrated.

That is, when it is convenient to adopt the fixing means based on welding fixing as shown in FIGS. 8 and 9, it is preferable to assume the imaginary line γ connecting the bolt holes 21, 22 and the fixing means 81, 91. The line γ is configured to traverse the center portion α of the groove bottom of the direction changing path 16 . According to the above configuration, the end plate 6 can be firmly fixedly coupled to the moving block main body 5 in a state in which the end plates are fixed to the both ends, thereby providing a motion guiding device having high component strength and high durability and reliability.

Although the preferred embodiments of the present invention have been described above, the technical scope of the present invention is not limited to the scope described in the above embodiments. Many modifications or improvements can be made to the above embodiments.

For example, the above embodiment is exemplified in the case where the ball 3 is used as the rolling element, and the present invention is applied to the case where the direction changing path 16 formed on the end plate 6 is inclined. However, the present invention is applicable to motion steering devices of various forms. For example, as illustrated in FIG. 10, the present invention can also be applied to the direction change path 16 formed on the end plate 6 to be set in a horizontal direction or a vertical direction. Specifically, it is preferably a front view end. When the fixed surface of the plate 6 and the moving block body 5 is moved, the area A provided with the fixing means of the present invention is set to the center portion α of the rotary groove bottom of the fixed direction conversion path 16 of the fixed surface, and the side of the track rail is disposed. The area.

Further, the region A illustrated in Fig. 10 and the closing beam of the central portion α of the bottom of the rotary groove can be preferably applied to, for example, the end plate 6 in the case where the roller is used as the rolling element as shown in Fig. 11.

Further, for example, as exemplified in Fig. 12, the present invention can also be applied to a relatively small form in which the two-direction switching path 16 oriented in the horizontal direction is formed in the end plate 6. Shape. In this case, when the fixing surface of the end plate 6 and the moving block body 5 are viewed from the front view, it is preferable to set the portion (the welding means 121) provided with the fixing means of the present invention to the opposite direction of the fixing surface. The central portion α of the bottom of the rotary groove of the conversion path 16 is further located on the side where the track rail is disposed. Further, in the case of Fig. 12, since the end plate 6 has a relatively small size, it is preferable to provide a welding means 121 which can be provided even in a narrow region with respect to the fixing means.

Further, as a fixing means which can be applied even in a narrow area as exemplified in Fig. 12, a band fix can be employed. As an example of the fixing means using the strip as the fixing means of the present invention, it is shown in Figs. 13 and 14 . Here, FIG. 13 is configured such that two strips 131 are disposed to sandwich the upper and lower sides of the loaded ball rolling groove 5c formed on the moving block body 5, and the two strips 131 are fixed to the pair of ends by bolts. Board 6, 6 of them. Further, Fig. 14 is a case in which a belt 141 is disposed so as to overlap the load ball rolling groove 5c formed in the moving block main body 5, and the one belt 141 is also fixed to the pair of end plates 6 and 6 by bolts. .

Further, the fixing means of the present invention may be similar to the pressing portion 151 of the fixing means shown in Fig. 15, and may be pressed only in the vicinity of the scooping portion 16a of the direction changing path 16. Even in such a form, the same effects as those of the fixing means of the above-described embodiment can be exhibited. In other words, as shown in Figs. 13 to 15, the fixing means of the present invention can exhibit the same effects as those of the fixing means by the bolt holes 71 or the fixing means 81, 91 by welding. , in any form. For example, as a fixing means of the present invention, at least one of bolt fastening, rivet fixing, adhesive fixing, welding fixing, snap fit, belt fixing, or wire fixing may be employed or the like The combination.

According to the description of the scope of the patent application, it is clear that the change is applied. Or a modified form is also included in the technical scope of the present invention.

6‧‧‧ (as a cover member) end plate

16‧‧‧direction conversion path

16a‧‧‧Shovel

21, 22‧‧‧ (known) bolt holes

A‧‧‧A zone in which the fixing means of the embodiment is provided

The center of the base of the α‧‧‧ revolving groove

Claims (4)

A motion guiding device comprising: a rail member formed with a rolling element rolling portion; and a moving member formed with a rolling element rolling portion facing the rolling element rolling portion and having the load a rolling element return passage in which the rolling element rolling portions extend substantially in parallel; a pair of cover members are provided on the front and rear ends of the moving member in the moving direction, and are formed to connect the load rolling element rolling portion and the rolling elements a direction change path of the return path; and a plurality of rolling elements arranged to be freely arranged in a rolling element circulation path formed by the load rolling element rolling portion, the rolling element return path, and the direction changing path; The motion guiding device is characterized in that: the moving member and the cover member are provided with a plurality of fixing means for fixing the moving member and the cover member; any one of fixing means is provided in the above direction formed by the cover member The conversion path is adjacent to the scooping portion of the rolling element scooping from the rolling element rolling portion of the load rolling body, and is arbitrarily Fixing means provided on another line track rail disposed near the trans position of the side. The motion guiding device of claim 1, wherein when the fixing surface of the cover member and the moving member are observed in a front view, the center portion of the fixed surface of the rotating groove bottom of the direction changing path is further The fixing means is provided on the side where the rail member is disposed on the side. For example, the motion guiding device of claim 1 or 2, wherein The imaginary line is configured to traverse the directional path when the fixed surface of the cover member is viewed from the front view and the imaginary line connecting any one of the fixing means and the other fixed means is assumed. . The motion guiding device according to any one of claims 1 to 3, wherein the fixing means is a bolt fastening, a rivet fixing, an adhesive fixing, a welding fixing, a fastening, a belt fixing, or a wire fixing. At least 1 or a combination of these.