JP2007113600A - Slider for linear guide device and linear guide device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slider for a linear guide device which enables the connection of the slider and a member to be connected without using a discrete interposing member in the case that the direction of the upper surface of a main body of the slider is different from that of the attaching surface of the member to be connected and is capable of expanding the degree of freedom of the mechanical design of the linear guide device. <P>SOLUTION: The linear guide device 10 includes the slider 16 which is provided over an guide rail 12 in a relatively movable manner. The slider 16 is provided with a connection flange 50 having tap holes 56 (a connection structure) for enabling the slider 16 to be connected to the member 100 to be connected and erecting on the upper surface 52 of the main body 17. The connection flange 50 is inseparably and integrally formed of the main body 17. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is used in a linear motion guide device having a guide rail, and includes a slider straddling the guide rail so as to be movable relative to the guide rail, and circulates while rolling in an infinite circulation path. The present invention relates to a linear motion guide device that moves the slider relative to a guide rail via a plurality of rolling elements.

Usually, in this type of linear motion guide device, the upper surface and the side surface of the main body of the slider are processed as a contact surface with the connected member to be attached, and the contact surface is connected to the connected surface. A tapped hole, a through hole for bolt attachment, and the like that are connected to the member are provided.
For example, in the technique described in Patent Document 1, mounting portions having bolt mounting holes penetrating vertically are provided on both side surfaces of a slider (moving block) main body, and bolt mounting is performed from below the mounting portion. A to-be-connected member (movable body) such as a table can be fixed to the upper surface of the main body of the slider through a hole with a fixing bolt (see paragraph number 23 of the same document).
Japanese Patent Laid-Open No. 11-22726

  However, in the case where the upper surface of the main body portion of the slider is the contact surface, the orientation of the upper surface of the main body portion of the slider and the mounting surface of the connected member is different. For example, FIG. As described above, when the contact surface 154 and the mounting surface 101 of the connected member 100 are orthogonal to each other in the relative movement direction, the slider 116 and the connected member are connected via the individual interposed member 200 such as an L-shaped angle. The member 100 is connected with a fixing bolt or the like for connection. Therefore, such a separate interposed member 200 is required for connection.

  In addition, in this example, since the separate intervention member 200 is used, there is a problem that it takes time and effort to obtain the assembly accuracy. Further, for example, as shown by the symbol X in the figure, the connection fixing bolt may require a space for loading in the tightening direction of the tool depending on the design. For this reason, in this example, there are restrictions on the mechanism design, and the extra space causes an offset amount that is originally undesirable, as indicated by the symbol Y in the figure, so that the overhang amount increases.

  On the other hand, in the case where the side surface of the main body of the slider is the contact surface, the mounting surface of the connected member faces the contact surface. The position of the mounting surface is limited only to the position facing the side surface of the main body of the slider. Furthermore, the method of assembling the slider is limited only to a method of tightening with a connecting fixing bolt in a tap hole formed on the side surface of the slider body. Therefore, there exists a problem that the freedom degree of mechanism design becomes narrow.

  Therefore, the present invention has been made paying attention to such problems, and when the orientation of the upper surface of the main body of the slider and the mounting surface of the connected member are different, a separate interposed member is used. It is an object of the present invention to provide a slider for a linear motion guide device and a linear motion guide device capable of connecting the slider and the member to be connected without increasing the degree of freedom in designing the mechanism.

  In order to solve the above-mentioned problems, the present invention is a slider that is used in a linear guide device having a guide rail, and is straddled so as to be relatively movable with respect to the guide rail, the slider covering itself. It has a connection structure that can be connected to the connection member, and has a connection collar part standing on the upper surface of the main body part, and the connection collar part is formed in an undivided integral structure with the main body part. It is characterized by.

Here, the “upper surface of the main body” refers to a central surface on the opposite side of the guide rail of the main body of the slider straddling the guide rail.
In the slider having the above-described configuration, the connecting flange portion is formed upright on the upper surface of the main body portion of the slider. Therefore, when the orientation of the upper surface of the main body portion of the slider and the mounting surface of the connected member are different, the connecting structure can be provided at an arbitrary position within the range in which the slider is erected. Therefore, it can be set as the structure which can expand the freedom degree of mechanism design.

And the connection collar part which has the connection structure which can be connected with a to-be-connected member is formed in the main-body part of a slider with the main-body part and the undivided integral structure. Therefore, the slider and the connected member can be connected without using a separate interposed member.
The present invention is also a linear motion guide device, characterized in that it includes a linear motion guide device slider having the above-described configuration.
With such a configuration, it is possible to provide a linear motion guide device that exhibits the action and effect of the slider.

  According to the present invention, when the orientation of the upper surface of the main body of the slider and the mounting surface of the coupled member is different, the slider and the coupled member can be coupled without using a separate interposed member, It is possible to provide a slider for a linear motion guide device and a linear motion guide device that can increase the degree of freedom in mechanism design.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of a slider for a linear motion guide device and a linear motion guide device including the slider according to the invention will be described with reference to the drawings as appropriate.
FIG. 1 is a perspective view showing a linear guide according to a first embodiment of a linear guide device provided with a slider according to the present invention.
As shown in the figure, the linear guide 10 includes a guide rail 12 having a rolling element guide groove 14 and a slider 16 straddling the guide rail 12 so as to be movable relative to the guide rail 12. ing.

The guide rail 12 has a substantially square cross-sectional shape, and a total of four rolling element guide grooves 14 are formed on each side of the guide rail 12 along the longitudinal direction. The slider 16 includes a main body portion 17 and end caps 22 attached to both ends of the main body portion 17 in the axial direction.
The slider 16 has a substantially semicircular cross section in cross section facing each rolling element guide groove 14 of the guide rail 12 inside the substantially U-shaped sleeves as schematically shown in the broken portion in FIG. A load rolling element guide groove 18 is formed, and a space sandwiched between the rolling element guide groove 14 and the load rolling element guide groove 18 opposed thereto forms a rolling element track 26. Further, a rolling element return path 20 that connects one end and the other end of the rolling element raceway 26 is formed in the slider 16. A total of four infinite circulation paths 28 are configured.

  Each infinite circulation path 28 is loaded with a plurality of balls 46 as rolling elements. The plurality of balls 46 constitute a rolling element row 62 together with the rolling element accommodation belt 47 by the rolling element accommodation belt 47. Thus, when the slider 16 is relatively moved in the axial direction of the guide rail 12, the linear guide 10 moves while the ball 46 rotates in the endless circulation path 28, and the rolling element housing belt 47 is also endlessly circulated together with the ball 46. The entire rolling element row 62 can be circulated in the endless circulation path 28 by moving in the path 28.

Here, as shown in the figure, the slider 16 has a main body 17 provided with a connecting flange 50. Hereinafter, the connecting flange 50 will be described in detail.
2A and 2B are diagrams for explaining the linear guide 10. FIG. 2A is a plan view thereof, FIG. 2B is a front view thereof, and FIG. 2C is a right side view thereof. .
The connecting flange 50 is a rectangular parallelepiped portion standing on the upper surface 52 of the main body 17 of the slider 16 as shown in FIG. The connecting hook 50 and the main body 17 are manufactured by cutting out from the same material, and the bottom surface of the connecting hook 50 is connected to the upper surface 52 of the main body 17 to be integrated. That is, the connecting collar portion 50 is formed as an integral structure that is not divided from the main body portion 17.

  And, as shown in the figure, the connecting rod portion 50 having a rectangular parallelepiped shape is formed at one place along the direction in which the slider 16 moves relative to the guide rail 12, and what is the relative moving direction? In the orthogonal direction, the slider 16 has substantially the same thickness as the width of the substantially U-shaped sleeve portion. The both sides in the thickness direction are surfaces whose accuracy and flatness are controlled by grinding or the like, and are formed as flange contact surfaces 54A and 54B that contact the connected members, respectively. Has been. Note that the flange contact surface 54A, which is a surface facing outward, is formed flush with the outer surface 48 of the main body portion 17 (see FIGS. 2B and 2C). Further, the connecting flange portion 50 has a connecting structure that allows the slider 16 itself to be connected to the connected member, and penetrates the flange contact surface 54A (54B) in a direction orthogonal to the relative movement direction. Four tap holes 56 are formed at appropriate intervals corresponding to the connected members in the height direction and the width direction of the flange contact surface 54A (54B).

Next, functions and effects of the slider 16 and the linear guide 10 will be described.
As described above, in this linear guide 10, the slider 16 has the tapping hole 56 that allows the slider 16 to be connected to the connected member, and includes the connecting collar portion 50 that stands on the upper surface 52 of the main body portion 17. ing. And this connection collar part 50 is formed in the main-body part 17 and the undivided integral structure.

  Therefore, as shown in FIG. 3, when the orientation of the upper surface 52 of the main body portion 17 of the slider 16 and the mounting surface 101 of the connected member 100 is different, the mounting surface 101 of the connected member 100 is connected to the connecting rod 101. The slider 16 and the member to be connected 100 are separated from each other by a fixing bolt (not shown) for connection using the tap hole 56 by contacting the flange contact surface 54A or the flange contact surface 54B of the portion 50. It can connect, without using a mounting member.

And in this linear guide 10, the tap hole 56 can be formed in the appropriate position corresponding to the to-be-connected member 100 in the height direction and width direction of the collar part contact surface 54A (54B). That is, the tap hole 56 can be provided at an arbitrary position within the range where the connecting collar portion 50 is erected. Therefore, it can be set as the structure which can expand the freedom degree of mechanism design. Moreover, the slider 16 and the to-be-connected member 100 can be connected easily.
In this linear guide 10, the connecting flange 50 has flange contact surfaces 54 </ b> A and 54 </ b> B that contact the connected member 100. The flange contact surfaces 54 </ b> A and 54 </ b> B are obtained by grinding or the like. It is a quality controlled surface. Therefore, the slider 16 and the connected member 100 can be connected with better assembly accuracy.

  Moreover, in this linear guide 10, the connection collar part 50 is standingly arranged along the said relative movement direction, and each collar part contact surface 54A, 54B is a direction orthogonal to the said relative movement direction. Each is formed on both sides. Therefore, it can be preferably used when the orientation of the upper surface 52 of the main body portion 17 of the slider 16 and the mounting surface 101 of the connected member 100 is the orientation of the flange contact surfaces 54A and 54B. That is, as shown in FIG. 3 as an example of use thereof, the outer side of the linear guide 10 can be connected to the connected member 100 (see FIG. 3A), and the upper surface of the slider 16 of the linear guide 10 In the form located at 52, it is possible to connect to the connected member 100 (see FIG. 5B), and to further increase the degree of freedom in mechanism design.

  Further, the flange contact surface 54 </ b> A is formed flush with the outer surface 48 of the main body 17 of the slider 16. As a result, when the conventional contact surface and the mounting surface of the connected member are orthogonal to each other in the direction of relative movement, as illustrated in FIG. Is preferred. That is, in the above conventional example, since a space for the insertion is required in the tightening direction with the tool, a mechanism design restriction occurs, and the extra space causes an originally undesirable offset amount. Although the amount of overhang increases, according to the example of the present embodiment, as shown in FIG. 3A, the undesired offset amount as illustrated above is reduced to suppress the overhang amount. A compact mechanism design can be achieved.

Next, a linear guide according to a second embodiment of the linear motion guide device including the slider according to the present invention will be described. The second embodiment is the same as the first embodiment except that the configuration described below is different, so the other configurations are the same. Description is omitted as appropriate.
In the second embodiment, the direction in which the connecting collar 50 in the first embodiment is erected is different.

  That is, in this second embodiment, as shown in FIG. 4, the connecting collar 50 is erected along a direction orthogonal to the direction of relative movement, and the collar contact surfaces 54C, 54D. Are formed on both sides of the connecting flange 50 in the direction of relative movement. In this example, the tapped holes 56 are formed through two places at an appropriate interval corresponding to the connected member in the height direction and the width direction of the flange contact surface 54C (54D).

  With such a configuration, for example, as shown in FIG. 5A, the orientation of the upper surface 52 of the main body 17 of the slider 16 and the mounting surface 101 of the connected member 100 is different. It is suitable when the mounting surface 101 of the connecting member 100 is orthogonal to the direction of relative movement. In addition, the example of the figure is an example in which the relative moving direction is installed along the direction of gravity with respect to the base 300 having a substantially vertical surface. Also in this example, as shown in the comparative example in FIG. 5B, when the conventional slider 116 is used, since the separate interposing member 200 is used, it takes time and effort to increase the assembly accuracy. In the example, as indicated by the symbol Z in the figure, for example, interference with the interposed member 200 occurs in the tightening direction of the tool, which is a restriction on the mechanism design.

  As described above, according to the slider 16 for linear motion guide device and the linear guide 10 including the slider according to the present invention, the upper surface 52 of the main body portion 17 of the slider 16 and the mounting surface 101 of the connected member 100 are separated. When the directions are different, the slider 16 and the connected member 100 can be connected without using a separate interposed member, and the degree of freedom in mechanism design can be increased.

The linear motion guide device slider and the linear motion guide device including the slider according to the present invention are not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention. It is.
For example, in each of the above embodiments, the linear guide provided with the ball has been described as an example of the linear guide device provided with the slider according to the present invention. However, the present invention is not limited to this. It can be applied to a roller guide provided with

  Further, for example, in each of the embodiments described above, the example in which the tap hole 56 is formed as the connection structure that enables the slider 16 itself to be connected to the connected member 100 has been described. The structure can be constructed from a combination of these including a through hole, slot, or counterbore hole, or tapped hole. For example, FIG. 6 shows a modified example in which a counterbored hole 56 is provided in the connecting collar 50 and a tapped hole that can be coupled to the hole is provided in the connected member 100. Even if it is such a structure, a slider and a to-be-connected member can be connected easily.

Moreover, in each said embodiment, although the guide rail 12 was made into the fixed side and the example which moved the slider 16 was demonstrated in the usage example, it is not limited to this, For example, as illustrated to Fig.7 (a), Of course, it is possible to configure the slider 16 as the fixed side so that the guide rail 12 moves.
Further, in each of the above embodiments, the connecting flange 50 is erected at one location along the direction of relative movement, and at one location along the direction orthogonal to the direction of relative movement. However, the present invention is not limited to this. For example, as shown as a modified example in FIG. 7B, a configuration in which two (or more) parts are erected may be used.

Moreover, although each said embodiment demonstrated the example which formed the collar contact | abutting surface in both surfaces in the thickness direction of the said connection collar part 50 which makes a rectangular parallelepiped shape, it is not limited to this, In each embodiment It is good also as a structure formed in the at least one side. Furthermore, if accuracy is not required, a configuration in which the connecting hook part 50 is simply formed and the processing of the hook contact surface can be omitted.
In addition, each of the above-described embodiments, modified examples, and usage examples thereof are not limited to the individual examples described above, and modifications and combinations of the components can be appropriately implemented as long as the configuration has the effects of the present application. Of course.

It is a perspective view which shows the linear guide of 1st embodiment of the linear guide apparatus provided with the slider which concerns on this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining 1st embodiment of the linear guide apparatus which concerns on this invention, The figure (a) is the top view, The figure (b) is the front view, The figure (c) is the figure. It is the right view. It is a figure explaining the usage example of 1st embodiment of the linear guide apparatus which concerns on this invention. It is a figure explaining 2nd embodiment of the linear guide apparatus based on this invention, The figure (a) is the left view, The figure (b) is the top view. It is a figure explaining the usage example of 2nd embodiment of the linear motion guide apparatus which concerns on this invention, The figure (a) shows the usage example, The figure (b) is the conventional linear motion guide apparatus. The comparative example at the time of using (linear guide) is shown. It is a figure explaining the modification of the linear motion guide apparatus which concerns on this invention. It is a figure explaining the modification of the linear motion guide apparatus which concerns on this invention. It is a figure explaining the usage example at the time of using the conventional linear motion guide apparatus.

Explanation of symbols

10 Linear guide (linear motion guide device)
DESCRIPTION OF SYMBOLS 12 Guide rail 14 Rolling body guide surface 16 Slider 17 (Slider) main-body part 18 Load rolling body guide surface 20 Rolling body return path 22 End cap 26 Rolling body track 28 Endless circulation path 46 Ball (Rolling body)
47 Rolling body accommodation belt 48 Outer surface (of slider main body) 50 Connection flange 52 Upper surface (main body) 54A, 54B, 54C, 54D Hump contact surface 56 Tap hole (connection structure)
58 Counterbore hole (connection structure)
62 Rolling element row 100 Connected member 101 (Mounted member) mounting surface 116 (Conventional) slider 154 Abutting surface 200 Individual interposing member 300 Base

Claims (7)

A slider that is used in a linear motion guide device having a guide rail and is straddled so as to be relatively movable with respect to the guide rail;
The slider has a connection structure that allows itself to be connected to a member to be connected, and includes a connecting collar portion that stands on the upper surface of the main body portion;
The slider for a linear motion guide device, wherein the connecting collar portion is formed in an integral structure that is not divided from the main body portion.   2. The linear motion guide device slider according to claim 1, wherein the connection structure is at least one of a tap hole, a through hole, a long hole, and a countersink hole.   The said connecting collar part has a collar contact surface which contacts the said to-be-connected member, The said collar contact surface is a surface where the precision control by grinding etc. was carried out. The slider for linear motion guides as described in 1 or 2.   The connecting hook part has a rectangular parallelepiped shape, and a bottom surface of the connecting hook part is formed along the relative moving direction, and the hook contact surface is at least one side in a direction orthogonal to the relative moving direction. The slider for a linear motion guide device according to claim 3, wherein the slider is for a linear motion guide device.   The said collar part contact surface is formed in the outer side in the orthogonal direction with the said relative movement direction, and is formed in the same surface as the outer side surface of the main-body part of a slider, The Claim 3 or 4 characterized by the above-mentioned. The slider for the linear motion guide device described.   The connecting hook portion has a rectangular parallelepiped shape, and a bottom surface thereof is formed along a direction orthogonal to the relative movement direction, and the hook contact surface is at least one side in the relative movement direction. The slider for a linear motion guide device according to claim 3, wherein the slider is for a linear motion guide device.   A linear motion guide device comprising the slider for linear motion guide device according to any one of claims 1 to 6.

Images