JPH1162960A - Rolling guide device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rolling guide device to ensure accuracy of a direction conversion passage despite of the presence of molding distortion. SOLUTION: A rolling guide device comprises a track rail 2; and a moving body 4 movable mounted on the track rail 2 through a number of balls 3. A molded product 40 having an inner peripheral guide part 43 of which a direction conversion passage for a ball 3 consists together with the outer peripheral guide part 43 of a side cover 21 is integrally formed at the body block 30 of a moving body 4. In this case, a flange part 46 spreading from the base part of an inner peripheral part 43 to ward the periphery thereof along the end face 30c of the body block 30 is arranged at the molded product 40. The flange part 46 is pressed against the end face 30c of the body block 30 by a side cover 21 and with this state, the side cover 21 is fixed at the end face 30c of the body block 30 by means of bolts 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for rollingly guiding a moving body along a predetermined track member.

[0002]

2. Description of the Related Art An apparatus of this kind generally includes a track member,
And a moving body movably attached to the track member via a number of rolling bodies. The rolling element includes a load rolling path formed between the track member and the moving body, a return path provided on the moving body in parallel with the load rolling path, and a pair of directions connecting the load rolling path and the return path. It is loaded in an infinite circulation path composed of a turning path. As the moving body moves along the track member, the rolling body rolls on the load rolling path from one end to the other end while receiving a load from the moving body, and then returns through one direction change path. And is returned to one end of the load rolling path via the other turning path.

[0003] In such a rolling guide device, the shape and dimensions of the endless circulation path are accurate, for example, the return path and the direction change path are formed at the correct positions with respect to the load rolling path, and furthermore, the joints of the paths are formed. It is required that there is no step, and if the accuracy is reduced, smooth circulation of the rolling elements is hindered, resulting in inconveniences such as poor movement of the moving bodies, deterioration of guidance accuracy and generation of noise.

Therefore, the present applicant has proposed a device for improving the accuracy of an infinite circulation path by integrally insert-molding a high-rigidity main body block and a molded body for forming a direction change path and the like. (See, for example, JP-A-7-317762). However, with respect to the direction changing path, only the inner peripheral guide portion is provided at the end of the molded body, and the outer peripheral guide portion of the direction changing path is formed on a side lid separate from the molded body. When the side lid and the molded body are fastened to each other, the two guide portions are combined to form a direction change path.

[0005]

In the case where the main body block and the molded body are formed integrally, the main body block and the rolling groove for forming the load rolling path provided on the main body block or a predetermined reference surface provided around the groove are formed. The mold of the molded body is configured so that the return path and the direction change path are formed at correct positions. At this time, at both ends of the moving body, first, the end surface of the main body block is accurately processed with a predetermined accuracy with respect to the reference surface, and the inner peripheral guide portion of the molded body is brought into close contact with the end surface. Ensuring the accuracy of the turning course.

However, the inner peripheral guide portion of the direction change path is formed as a thick convex portion, and the periphery of the inner peripheral guide portion is formed to be thin, so that molding distortion occurs. In particular, when the molded body is also provided with a holding part and a return path for the rolling element guided on the load rolling path, the inner peripheral guide part of the direction change path is pulled toward the main body block at both ends of the molded body. Molding distortion is likely to occur. When such molding distortion occurs, the inner peripheral guide portion does not accurately adhere to the end surface of the main body block.

[0007] Since the conventional side lid is fastened to the molded body, the outer guide portion provided on the side lid is fitted along the inner guide portion. Therefore, the distortion generated in the inner peripheral guide portion is not corrected by the attachment of the side cover, and the accuracy of the turning path is impaired by the distortion of the inner peripheral guide portion. In particular, at the joint between the turning path and the load rolling path, the rolling element transitions from the unloaded state to the loaded state or vice versa, so if the accuracy of the turning path is impaired near the joint, the rolling guide The effect on the movement accuracy and noise of the rolling elements of the device is large.

Accordingly, an object of the present invention is to provide a rolling guide device capable of ensuring the accuracy of a direction change path regardless of the presence or absence of molding distortion.

[0009]

Hereinafter, the present invention will be described. In addition, in order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are added in parentheses, but the present invention is not limited to the illustrated embodiment.

The invention according to claim 1 comprises a track member (2) and a moving member (4) movably attached to the track member (2) via a number of rolling members (3). The moving body (3) is provided on the moving body (4) in parallel with the load rolling path (7) and the load rolling path (7) formed between the track member (2) and the moving body (4). Return path (8), a turning path (9, 9) connecting the load rolling path (7) and the return path (8).
The moving body (4) is provided with a main body block (30) defining a load rolling path (7) in cooperation with the track member (2), and a main body block. A molded body (40) integrally formed with (30) and provided with an inner peripheral guide portion (43) for defining an inner peripheral side of the direction change path (9), and disposed at both ends of the moving body (4). In the rolling guide device (1) having the outer cover (21, 21) provided with the outer circumferential guide portion (53) for defining the outer circumferential side of the direction change path (9), the molded body (40) includes: An inner circumferential guide portion (43) along an end surface (30c) of the main body block (30).
A flange (46) extending from the base of the main block (30) to the periphery thereof is provided, and the side cover (21) presses the flange (46) against the end face (30c) of the main block (30) while the end face of the main block (30) (30c) to the fastening means (23, 2
The above-mentioned problem is solved by the rolling guide device fixed by using 4).

According to the present invention, when the side cover (21) is fixed to the end face (30c) of the main body block (30), the flange portion (46) of the molded body (40) is fixed to the end face (30c) of the main body block (30). ), The inner peripheral guide portion (43) is brought into close contact with the end surface (30c) of the main body block (30), and the distortion is corrected. For this reason, no distortion occurs in the outer peripheral guide portion (53) combined with the inner peripheral guide portion (43), and the accuracy of the direction change path (9) is ensured.

According to a second aspect of the present invention, in the rolling guide device of the first aspect, the inner peripheral guide portion (4) of the molded body (40) is provided.
3) is provided with a first two-part width portion (45) having a pair of surfaces (45a, 45a) parallel to each other, and a side cover (21).
Of the inner circumference guide portion (43)
The second two-sided width portion (5) that fits with the two-sided width portion (45) to position the inner peripheral guide portion (43) and the outer peripheral guide portion (53).
5) is provided.

According to the present invention, when the side cover (21) is attached to the main body block (30), the inner and outer guide portions (43, 5) are provided.
3) The two width portions (45, 55) are fitted to each other so that the outer guide portion (53) is accurately positioned with respect to the inner guide portion (43). Therefore, the accuracy of the direction change path (9), specifically, the direction change path (9) is formed in a correct shape suitable for guiding the rolling element (3), and furthermore, the load rolling path (7).
It is more reliably ensured that the turning path (9) is formed at the correct position with respect to the return path (8).

According to a third aspect of the present invention, in the rolling guide device according to the first aspect, the fastening means engages with the body-side fastening portion (23) provided on the body block (30) and the side lid (21). A lid-side fastening portion (24) coupled to the main-body-side fastening portion (23);

According to the present invention, the side cover (21) and the highly rigid body block (30) are connected by the fastening means (23, 24).
And a large fastening force can be obtained, and the inner circumferential guide portion (43) and the brim portion (46) of the molded body (40) can be utilized by utilizing the fastening force.
0) can be firmly pressed against the end face (30c).

According to a fourth aspect of the present invention, in the rolling guide device of the first aspect, the side cover (21) is provided with the main body block (3).
0), an attachment surface (50) facing the end surface (30c), and a collar pressing surface (51) which is retracted from the attachment surface (50) and abuts against the collar (46). 2
3, 24) couple the main body block (30) and the side cover (21) within a range where the mounting surface (50) is provided.

According to the present invention, the mounting surface (50) of the side cover (21) abuts against the end surface (30c) of the main body block (30) so that the side cover (21) can be accurately positioned with respect to the main body block (30). Can be positioned. Since the force for fastening the side cover (21) and the main body block (30) acts on a position distant from the collar (46), local concentration of the pressing force on the collar (46) is avoided. 46) can be pressed uniformly to the main body block (30).

The present invention is not limited to the configuration in which the molded body (40) includes only the inner peripheral guide portion (43) and the collar portion (46) of the direction change path (9). That is, in the invention of claim 5, the return path (8) is provided in the molded body (40), and in the invention of claim 6, the rolling element (3) guided to the load rolling path (7) is held. The holding part (42) is a molded product (4
0). Further, in the invention according to claim 7, a number of rolling elements (3) are connected to each other by a connecting body (11), and a connecting body guide (12) for guiding the connecting body (11) is provided in an infinite circulation path (10). ) Is provided. The track member (2) and the rolling element (3) can be embodied in various forms. In the invention of claim 8, the track member is the track rail (2),
The rolling element is a ball (3).

[0019]

1 to 3 show an assembled state of a rolling guide device according to an embodiment of the present invention. The rolling guide device 1 includes a track rail 2 as a track member, and a moving body 4 movably attached to the track rail 2 via a large number of balls 3 as rolling elements. The track rail 2 is a long member having a substantially rectangular cross section. Load rolling grooves 5... Capable of receiving the ball 3 are formed on both side surfaces of the track rail 2 at right and left sides over the entire length of the track rail 2. . The illustrated track rail 2
Is straight, but a curved rail may be used. The number of load rolling grooves 5 is not limited to two right and left, but may be variously changed according to the use of the rolling guide device, such as one left and right or a total of three or four left and right.

The moving body 4 is provided with four load rolling grooves 6 which face the load rolling grooves 5, respectively. The combination of these load rolling grooves 5 and 6 forms four load rolling paths 7 between the track rail 2 and the moving body 4.
Further, the moving body 4 is provided with four return paths 8 extending in parallel with the load rolling paths 7 and direction change paths 9 connecting the return paths 8 and the load rolling paths 4. One infinite circulation path 10 is constituted by a combination of one load rolling path 7 and return path 8 and a pair of direction change paths 9 connecting them.

Each of the infinite circulation paths 10 is loaded with a number of balls 3 interconnected by a connector 11. The connecting body 11 has a large number of spacers 11a, and a pair of belts 11b, 11b connecting the spacers 11a. The ball 3 is accommodated and held between the spacers 11a. . The belt 11 b is provided so as to protrude to the side of the ball 3, and the belts 11 b, 11 b
There are provided connecting body guide grooves (connecting body guide portions) 12 and 12 in which the protruding portions are slidably fitted.

As the moving body 4 moves along the track rail 2, the ball 3 rolls on the load rolling path 7 from one end to the other end while receiving the load from the moving body 4, and thereafter,
It is scooped up on one turning path 9 and guided to the return path 8, and further through the other turning path 9, the load rolling path 7.
Is returned to one end. At this time, the belt 11 of the connecting body 11
Since b moves in the infinite circulation path 10 along a fixed trajectory defined by the coupling body guide groove 12, the ball 3 held in the coupling body 11 circulates in the infinite circulation path 10 without meandering. .

As shown in FIG. 1, the moving body 4 is composed of a moving body 20, side covers 21, 21 disposed at both ends thereof, and seals 22, 22 attached to each side cover 21. And four bolts 24... Screwed toward the screw holes 23 of the moving body 20. The screw hole 23 constitutes the main body side fastening portion of the fastening means, and the bolt 24 constitutes the lid side fastening portion of the fastening means. As shown in FIG.
An inner seal 25 is incorporated between the lower surface of the moving body 20 and side seals 26 between the side surfaces 2b and 2b of the track rail 2. In FIG. 2, the configuration of the end of the moving body 20 is shown to the right of the vertical center line CL, and the cross-sectional structure of the moving body 20 is shown to the left.

As shown in detail in FIG.
Are a main body block 30, a pair of left and right molded bodies 40, 4
0. The main body block 30 is a high-rigidity structure made of steel or the like so as to withstand the load on the moving body 4, and a screw hole 31 for fixing an object to be guided by the apparatus 1 is formed on an upper surface 30 a of the main body block 30. (Figure 1
reference). A screw hole 23 for attaching the side cover 21 is also formed in the main body block 30. The molded body 40 is
The main body block 3 is formed by so-called insert molding, in which a molten resin is injected into a mold in which the main body block 30 is installed.
0 and integrally formed. The molded body 40 may be die-cast using a light metal such as aluminum instead of resin. 2 and 4 to 8 show only the configuration on one end side of the main body block 30, but the description on the other side is omitted because the configuration is the same.

The above-described load rolling groove 6 is provided in the main body block 3.
The upper surface 30a and the side surface 30b are formed on the main body block 30 with a predetermined accuracy with reference to each of them (FIG. 4).
(C)). Both end surfaces 30c of the main body block 30 are machined to a predetermined accuracy (squareness) with reference to the upper surface 30a. In the molding step of the molded body 40, a mold for injection molding the molded body 40 is assembled with a predetermined accuracy based on the load rolling grooves 6 of the main body block 30 housed therein, and thereafter the mold is formed. The resin is injected into the mold 4
0 is molded.

The body block 30 is formed with four through holes 32 extending parallel to the load rolling grooves 6, and the tubular portions 41 of the molded body 40 are integrally formed in the through holes 32. Inside the tubular portion 41, a return path 8 and a connecting body guide groove 12 in the return path 8 are formed. Holding portions 42 are formed in the molded body 40 so as to sandwich the load rolling path 7 (see FIG. 3), and the connecting body guide groove 12 in the load rolling path 7 is provided between the holding section 42 and the main body block 30. Are formed. When the moving body 4 is attached to the track rail 2, the ball 3 is separated from the holding section 42, and when the moving body 4 is removed from the track rail 2, the holding section 42 and the ball 3 are engaged to drop the ball 3. Is prevented.

As shown in FIGS. 4 (a) and 4 (b), each of the molded bodies 40, 40 is formed with an inner peripheral guide portion 43 projecting from the end surface 30c of the main body block 30 in an arch shape. I have. The inner peripheral guide 43 includes a concave arc-shaped guide groove 44 for receiving the ball 3 and a pair of surfaces 45 parallel to each other.
a, 45a. At the base of each inner peripheral guide 43, the end face 30 of the main body block 30 is provided.
A brim portion 46 extending around the inner peripheral guide portion 43 along c is formed. The collar portion 46 is provided integrally with the tubular portion 41 and the holding portion 42. Therefore, the main body block 3
0 and inner peripheral guide portions 43 and collar portions 46 formed at both ends of
Are connected to each other via a tubular portion 41 and a holding portion 42 (see FIG. 3).

The flange 46 is provided at the end surface 30 of the main body block 30.
c, and the end face 30c of the main body block 30 is exposed above and to the side. The above-described screw hole 23 is formed in the exposed portion. The two screw holes 23, 23 at the lower part of the main body block 30 are provided at an intermediate position between the pair of upper and lower inner circumferential guides 43, 43. Part 46
a, 46a are formed.

As shown in FIG. 5A, the side cover 21 has
The mounting surface 50 with respect to the main body block 30, the flange pressing surface 51 which is retracted by one step from the mounting surface 50,
(See FIG. 1) are provided. The mounting surface 50 is provided with bosses 50a, 50a corresponding to the notches 46a, 46a of the collar 46 described above. In FIG. 5A, the flange pressing surface 5 is shown.
2, the range is indicated by hatching, but this hatching does not mean a cross section.

The collar pressing surface 52 is provided with four outer circumferential guides 53 for forming the direction changing path 9. The outer peripheral guide 53 is shown in an enlarged scale in FIG. The outer circumferential guide 53 has a concave arc-shaped guide groove 54 for receiving the ball 3.
And a two-sided width portion 55 having a pair of surfaces 55a, 55a parallel to each other, and a guide groove forming portion 56 provided between the two-sided width portion 55 and the guide groove 54.

FIG. 6 shows a state where the side cover 21 is attached to the main body block 30. FIG. 6A shows the center line X in FIG.
Is shown in a direction in which the side cover 21 is on the left side, and FIG. 4B shows a cross section taken along line VIb-VIb in FIG. As shown in these figures, when the side cover 21 is attached to the main body block 30, the inner peripheral guide portion 43 and the outer peripheral guide portion 53 are combined and the direction changing path 9 is provided therebetween.
Is formed. At this time, the two width portions 45, 55 of the guide portions 43, 53 are fitted, and the direction changing path 9 is formed between the guide groove forming portion, 56 of the outer guide portion 53 and the outer periphery of the inner guide portion 43.
Are formed.

As is clear from FIG. 6, the depth of the flange pressing surface 51 of the side lid 21 from the mounting surface 50 is equal to the thickness of the flange 46 of the molded body 40. Therefore, the side cover 21 is combined with the main body block 30 and the above-described bolt 24 (FIG.
Screwed into the screw hole 23 of the main body block 30,
The mounting surface 50 of the side lid 21 is the end surface 30c of the main body block 30.
The side cover 21 is accurately positioned with respect to the main body block 30. At the same time, the flange pressing surface 5
1 abuts against the brim portion 46 and the brim portion 46 becomes the end face 30c.
Pressed to. Thus, the collar 46 and the inner peripheral guide 43 integral therewith are connected to the end face 30 of the main body block 30.
c, and the inner peripheral guide portion 43 is accurately positioned at a predetermined position. The outer guide 53 is also accurately positioned with respect to the inner guide 43 without distortion due to the fitting of the two width portions 45 and 55.

Therefore, the accuracy of the direction change path 9 is ensured, and the accuracy of the return path 8 and the connecting body guide groove 12 is also ensured. Circulates smoothly. In particular, since the joint between the direction change path 9 and the load rolling path 7 corresponding to the transition between the load area and the no-load area of the infinite circulation path 10 is accurately formed, the ball 3 should move at the joint. Without fluctuating left or right with respect to the direction or speed fluctuation,
The ball 3 moves orderly in the direction in which the infinite circulation path 10 extends. Therefore, the ball 3 collides with the wall surface of the infinite circulation path 10 or the
There is no occurrence of micro-vibration in the moving body 4 due to collision with each other,
As a result, the moving body 4 is accurately guided in the longitudinal direction of the track rail 2, the guiding accuracy of the moving body 4 is improved, and generation of noise accompanying the traveling of the moving body 4 is prevented.

In this embodiment, since the end face 30c of the main body block 30 is exposed above and to the side of the flange 46, the end face 30c of the exposed portion is molded when the molded body 40 is formed. And the hot water can be reliably drained to the outer peripheral side of the main body block 30.

In the above embodiment, the return path 8 and the holding portion 42 are formed in the molded body 40. However, these may be omitted and the molded body 40 may be provided with only the inner peripheral guide portion 43 and the collar portion 46. . In this case, as shown in FIG.
A fixing hole 30d is formed in the end face 30c of the main body block 3 so that a projection 46b that fits tightly with the fixing hole 30d when the molded body 40 is formed is formed integrally with the collar 46.
0, and then the collar 46 may be pressed against the end face 30 c by the side lid 21. Return path 8 or holding section 4
2, the inner peripheral guide 43 and the collar 46
May be provided integrally.

In the above-described embodiment, a description will be given of a rolling guide device in which a pair of upper and lower load rolling paths are formed on both sides of a track rail, and return paths are respectively disposed diagonally above and below the load rolling paths. However, the present invention is not limited to this, and the arrangement of the infinite circulation path can be variously changed, for example, the arrangement in which the load rolling path is disposed on the upper surface and the side surface of the track rail. A connecting body as a connecting body of the rolling elements can be omitted. A pair of molded bodies disposed on the left and right sides of the moving body may be integrally connected by a flange.

[0037]

As described above, according to the present invention, the flange of the molded body is pressed against the end face of the main body block by utilizing the fastening force of the side lid to the main body block, and the inner peripheral guide is formed on the main body block. Because the outer guide part provided on the side lid is combined with the inner guide part to form a direction change path, regardless of the molding distortion of the molded body, Therefore, the accuracy of the turning path is ensured, and smooth circulation of the rolling elements is ensured. In particular, the joint between the direction change path and the load rolling path corresponding to the transition between the load area and the no-load area of the infinite circulation path is accurately formed. The rolling elements move orderly in the direction in which the infinite circulation path extends without wobbling left or right or causing speed fluctuation. Therefore, the rolling element does not collide with the wall surface of the infinite circulation path due to the above-mentioned wobble or speed fluctuation, and the rolling elements do not collide with each other, so that the moving body does not generate micro-vibration. The guide is accurately guided in the direction, and the guidance accuracy of the moving body is improved, and the generation of noise accompanying the traveling of the moving body is prevented.

In addition, by providing two width portions on the inner peripheral guide portion and the outer peripheral guide portion and fitting them, the outer peripheral guide portion is accurately positioned with respect to the inner peripheral guide portion, and the direction changing path is provided. Can be further improved. By directly connecting the main body block and the side lid with the fastening means, the inner peripheral guide portion and the collar portion can be firmly fastened to the end surface of the main body block. When the mounting surface of the side cover is directly abutted against the end surface of the main body block and the side cover and the main body block are connected by the fastening means within the range provided by the mounting surface, the side cover is accurately positioned. In addition, the accuracy of the direction change path can be further improved by uniformly pressing the flange portion of the molded body against the end surface of the other block. It is possible to improve not only the direction change path but also the return path of the infinite circulation path and the accuracy of the holding portion provided therewith.

Further, when the rolling elements are held by the connecting elements, the accuracy of the connecting element guide formed in the endless circulation path is also improved, and the rolling elements can be circulated more smoothly. In other words, when a linked body is used, each rolling element is infinitely irrespective of the load fluctuation when the rolling element moves from the no-load area to the load area or vice versa. The vehicle can be run while being accurately held at a substantially central position in a cross section of the circulation path (a cross section orthogonal to the direction of the circulation path). In particular, even when so-called crowning is performed, in which both ends of the load rolling path gradually expand toward the turning path in order to gradually apply a preload to the rolling elements, the rolling elements meander in such expanded paths. It is possible to orderly move the vehicle from the turning path to the load rolling path without causing the road to turn. As a result, it is possible to prevent deterioration of the guidance accuracy of the moving body and generation of noise due to meandering and speed fluctuation of the rolling body. Such an effect of the connecting body is surely and remarkably exhibited by the present invention that improves the accuracy of the connecting body guide portion on the turning course.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rolling guide device according to an embodiment of the present invention.

FIG. 2 is a diagram showing the rolling guide device shown in FIG. 1 along a plane orthogonal to the track rail.

FIG. 3 is a diagram showing an infinite circulation path of the rolling guide device shown in FIG. 1;

4A and 4B are diagrams showing a configuration of a moving body constituting the rolling guide device of FIG. 1, wherein FIG. 4A is a diagram showing a configuration of an end face side of the moving body, and FIG. 4B is an arrow of FIG. The figure which shows the state seen from IVb direction, (c) is a cross-sectional view of a mobile body main body.

5A and 5B are diagrams showing a configuration of a side cover assembled to the moving body main body in FIG. 4; FIG. 5A is a view showing a state seen from a mounting surface side with the moving body main body; The figure which expanded and showed the Vb part of FIG.

6A and 6B are diagrams showing a state in which a direction changing path is configured by combining the moving body main body of FIG. 4 and the side cover of FIG. 5; FIG.
FIG. 3A is a cross-sectional view taken along a center line X, and FIG.
Sectional drawing along the VIb-VIb line of FIG.

FIG. 7 is a view showing an example in which a mounting state of a molded body is changed.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 rolling guide device 2 track rail (track member) 3 ball (rolling member) 4 moving body 7 load rolling path 8 return path 9 turning path 10 infinite circulation path 11 connector 12 connector guide groove (connector guide) 20 Moving body 21 Side lid 23 Screw hole (body side fastening part of fastening means) 24 Bolt (lid side fastening part of fastening means) 30 Main body block 40 Molded body 43 Inner circumference guide part 45 Two-sided width part 46 Collar part 50 Mounting surface of side lid 51 Collar part pressing surface of side lid 53 Outer circumference guide part 55 Two-sided width part

Claims (8)

[Claims] 1. A track member, and a moving member movably attached to the track member via a number of rolling members, wherein the rolling member is formed between the track member and the moving member. Loaded in an infinite circulation path including a load rolling path to be used, a return path provided in the moving body in parallel with the load rolling path, and a direction change path connecting the load rolling path and the return path. The moving body includes a main body block that defines the load rolling path in cooperation with the track member, and an inner peripheral guide portion that is formed integrally with the main body block and that defines an inner peripheral side of the direction change path. A rolling guide device comprising: a molded body provided with; and a side lid provided at both ends of the moving body and provided with an outer peripheral guide portion that defines an outer peripheral side of the direction change path. Is the inner circumference along the end face of the main body block. A brim portion extending from the inner base portion to the periphery thereof is provided, and the side lid is fixed to the end surface of the main body block using fastening means while pressing the brim portion against the end surface of the main body block. Rolling guide device characterized. 2. A first flat portion having a pair of surfaces parallel to each other is provided on the inner peripheral guide portion of the molded body,
The outer peripheral guide portion of the side cover has a second two-plane width that is fitted to the first two-plane width portion of the inner peripheral guide section to position the inner peripheral guide section and the outer peripheral guide section. The rolling guide device according to claim 1, wherein a portion is provided. 3. The fastening means includes a body-side fastening portion provided on the body block, and a lid-side fastening portion that is engaged with the side lid and coupled to the body-side fastening portion. The rolling guide device according to claim 1, wherein: 4. The side lid is provided with a mounting surface facing the end surface of the main body block, and a flange pressing surface that retreats from the mounting surface and abuts on the flange. The rolling guide device according to claim 1, wherein the main body block and the side cover are coupled within a range where the mounting surface is provided. 5. The rolling guide device according to claim 1, wherein the return path is provided in the molded body. 6. The rolling device according to claim 1, wherein a holding portion for holding the rolling element guided to the load rolling path is provided on the molded body. Guide device. 7. The connecting device according to claim 1, wherein the plurality of rolling elements are connected to each other by a connecting body, and a connecting body guide portion for guiding the connecting body is provided in the infinite circulation path.
7. The rolling guide device according to any one of 6. 8. The rolling guide device according to claim 1, wherein the track member is a track rail, and the rolling element is a ball.