JP2598702Y2 - Guide member fixing device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide member fixing device for fixing a guide member at a predetermined position by pressing the guide member against a reference surface.

[0002]

2. Description of the Related Art Conventionally, FIGS.
When the linear guide 50 is pressed against the reference surface 56 formed on the bed 55 and fixed to the fixing surface 73 as shown in FIG. 3, a tapered groove 60 is formed in the bed 55 as shown in FIG. A top 65 having a tapered surface 61 formed on an outer surface thereof is fastened to a bed 55 by a bolt 66. By doing so, the tapered groove 60 and the tapered surface 6 are formed.
The top 65 is moved toward the linear guide 50 by the action of engagement with 1, and the linear guide 50 is pressed against the reference surface 56 by the top 65. Then, the linear guide 50 is
Is fixed.

[0003] Alternatively, as shown in FIG. 4, a holding plate 70 is installed in a direction perpendicular to a fixing surface 73, and the linear guide 50 is tightened by bolts 71 to be fixed to the reference surface 56. Alternatively, as shown in FIG.
3 and a screw hole 81 is formed in the vertical direction.
1, the linear guide 50 is pressed against the reference surface 56 and fixed.

[0004]

In the apparatus using the top 65 shown in FIG. 3, the tapered groove 60 is formed in the bed 55.
Requires a large number of processing steps and a long processing time. In addition, if the width A of the bed 55 on the top 65 side is not large due to the pressing force against the reference surface 56 generated by the taper, the bed 55 will bend and a sufficient pressing force cannot be obtained.

In the case of pressing the linear guide 50 against the reference surface 56 by the holding plate 70 shown in FIG. 4 and the case of pressing the linear guide 50 by the push screw 80 shown in FIG. Since it is necessary to machine the bolt hole 68 and the bolt hole 72 and the screw hole 81 in a direction perpendicular to the bolt hole 68, machining is difficult from two directions.

Further, since the push screw 80 is easy to be loosened, it needs to be separately provided, and there is a problem that the number of parts increases.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a tapered surface formed on an outer peripheral surface of a head portion of a clamp bolt, and a tapered hole formed in a clamp piece. When the guide member is sandwiched between the clamp piece and the reference plane, the bolt hole is formed on the base with the axis from the reference plane shorter than the center of the taper hole of the clamp piece. It was done.

Alternatively, a taper surface is formed on the outer peripheral surface of the head of the clamp bolt, and the clamp piece is formed in a rectangular shape.
A tapered hole is formed in this clamp top at a position where the distance from the four end faces is different from each other, and a tapered hole is formed.When the guide member is sandwiched between the clamp top and the reference plane, the distance from the reference plane is reduced. A guide member fixing device characterized in that a bolt hole is formed on a base with an axis at a shorter distance than the center of a tapered hole of a clamp piece.

[0009]

With the guide member interposed between the reference surface of the base and the clamp piece, the clamp bolt is tightened to the base through a tapered hole formed in the clamp piece. Then
The tapered surface on the outer periphery of the head of the clamp bolt and the reference surface side of the tapered hole of the clamp piece are pressed against each other, and the clamp piece is moved to the reference surface side to press the guide member against the reference surface.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings, with an example of fixing a linear guide. In FIG. 1, 1
0 is the bed that is the base. This bed 1
A reference plane 13 is formed on the upper surface of the reference numeral 0 as a reference in the horizontal direction.

A linear guide 15, which is a guide member, is fixed on the bed 10 by abutting its lower side surface on the reference surface 13. The linear guide 15 is long in the axial direction as shown in FIG.
A plurality of vertical holes 14 for passing 6 are formed at intervals in the longitudinal direction. A rectangular clamp piece 17 is in contact with the lower side surface of the linear guide 15 opposite to the reference surface 13. As shown in FIG. 2, the clamp piece 17 has a tapered hole 23 formed so as to correspond to the vertical hole 14 of the linear guide 15 at a position in the longitudinal direction. The clamp piece 17 is integrally formed by forging or stamping.

The bed 10 has a bolt hole 25 formed therein.
The clamp bolt 18 is screwed through the tapered hole 23 of FIG. A tapered surface 20 that engages with the tapered hole 23 of the clamp piece 17 is formed on the outer peripheral surface of the head of the clamp bolt 18. As shown in FIG. 1, the bolt hole 25 extends from the reference surface to the axis P of the tapered hole 23 when the reference surface 13 and the clamp piece 17 are in contact with both lower end surfaces of the linear guide 15, respectively. It is drilled at a position where the distance K from the reference plane 13 to the axis Q of the bolt hole 25 is shorter than the distance L. Therefore, when viewed from above, the bolt hole 25 is offset toward the reference surface 13 with respect to the tapered hole 23 as shown in FIG.

In the above configuration, the linear guide 1
The operation of fixing the bed 5 to the bed 10 will be described. Bed 10
The linear guide 15 is temporarily tightened by bolts 16 with its lower side surface in contact with the reference surface 13. In this state, the clamp piece 17 is brought into contact with the linear guide 15, and the clamp bolt 18 is screwed into the bolt hole 25 of the bed 10 through the tapered hole 23. Then, the tapered surface 20 of the head of the clamp bolt 18 comes into contact with the reference surface 13 side of the tapered hole 23 of the clamp piece 17 due to a shift between the axis Q of the bolt hole 25 and the axis P of the tapered hole 23. Clamp top 1 according to the tightening force of 18
7 is moved to the reference surface 13 side, and the linear guide 15 is pressed against the reference surface 13 to determine the horizontal position of the linear guide 15. After that, the linear guide 1 is
5 is fixed on the bed 10.

Therefore, even a linear guide having a warp as shown by a dotted line in FIG. 2 is pressed against the reference surface 13 over its entire length and is fixed straight along the reference surface 13 as shown by a solid line. In addition, the clamp bolt 18 is prevented from coming off because the taper surface 20 of the head receives a lateral force from the tapered hole 23. As shown in FIG. 2, in order to provide a single clamp top 17 with a variety of bases having various dimensions and to provide versatility, as shown in FIG.
May be formed such that a>b>c> d from the four-sided end surface to the axis of the tapered hole.

[0015]

[Effect of the Invention] In the present invention, when the guide member is sandwiched between the clamp piece and the reference face of the base, the distance from the reference face is smaller than the distance to the axis of the tapered hole formed in the clamp piece. Since the bolt hole is formed in the base at a short distance from the axis, it is not necessary to form a tapered groove in the base. Since the forming directions of the bolt holes for fixing the guide member and the clamp piece are the same, the processing can be facilitated. Also, there is no need to prevent the clamp bolt from coming off.

As described above, it is possible to reduce the cost and the formation time.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a conventional technique.

FIG. 4 is a sectional view showing a conventional technique.

FIG. 5 is a sectional view showing a conventional technique.

[Explanation of symbols]

 10,55 Bed 13 Reference surface 14 Vertical hole 15,50 Linear guide 16 Bolt 17 Clamp piece 18 Clamp bolt 20 Tapered surface 23 Tapered hole 25 Bolt hole

Claims (2)

(57) [Scope of request for utility model registration] 1. A base on which a guide member is fixed, a reference surface formed on the base and determining a position of the guide member in a direction parallel to a surface on which the guide member is fixed, and a guide member on the reference surface. A clamp top for pressing, a clamp bolt for fixing the clamp top to the base,
In the guide member fixing device having a bolt hole formed in the base and into which the clamp bolt is screwed, a tapered surface is formed on an outer peripheral surface of a head of the clamp bolt, and a tapered hole having a tapered shape is formed in the clamp piece. When the guide member is sandwiched between the clamp top and the reference plane, the distance from the reference plane is set to be shorter than the center of the taper hole of the clamp top, and the center of the bolt hole is set. Is formed on the base. 2. A base on which a guide member is fixed, a reference surface formed on the base and determining a position of the guide member in a direction parallel to a surface on which the guide member is fixed, and a guide member on the reference surface. A clamp top for pressing, a clamp bolt for fixing the clamp top to the base,
In the guide member fixing device having a bolt hole formed in the base and screwed with the clamp bolt, a tapered surface is formed on an outer peripheral surface of a head of the clamp bolt, and the clamp piece is formed in a rectangular shape; A tapered hole is formed in the clamp piece at a position different in distance from each of the four end faces, and a tapered hole is formed. The guide surface is formed when a guide member is sandwiched between the clamp piece and the reference face. A guide member fixing device, wherein the bolt hole is formed in the base so that the distance from the center is shorter than the center of the tapered hole of the clamp piece.