JPH05138428A - Device and method for machining embedded plug for truck rail in direct acting rolling guide unit - Google Patents

Abstract

PURPOSE:To provide a device and a method for machining an embedded plug for a truck rail in a direct acting rolling guide unit to cut the part of the embedded plug protruding from the upper face of the truck rail. CONSTITUTION:Since a cutter 25 is removably fixed to a slider 1 so as to take its position on the side of the front end of the slider 1, the cutter 25 can cut and remove the upper part of an embedded plug 14 protruding from the upper face 19 of a rail 2 only by slidingly moving the slider 1 on the rail 2. Thus, since a direct acting rolling guide unit itself is very high in travelling accuracy, if the cutter 25 itself is selected to be the best suited to the material of the embedded plug 14, the upper part of the embedded plug 14 can be finely cut, and the upper face 19 of the rail 2 and the upper face of the embedded plug 14 can be precisely machined to have the same level.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to sliding parts of machine tools, various precision machining equipment, test equipment, etc., and is used for a track rail having a rail raceway groove, a slider having a casing raceway groove, and each raceway groove. The present invention relates to a track rail plug cutting apparatus and a plug cutting method for a track rail in a linear motion rolling guide unit having a large number of rolling elements that roll between each other.

[0002]

2. Description of the Related Art Conventionally, a linear motion rolling guide unit mounts a comparatively heavy device and guides forward and backward movement with high accuracy over a comparatively long distance, and is already shown in FIG. A linear motion rolling guide unit, a linear motion rolling guide unit shown in FIG. 8 and the like have been proposed.

FIG. 7 is a perspective view showing an example of a conventional linear motion rolling guide unit. As shown in FIG. 7, in the linear motion rolling guide unit, track rails (hereinafter referred to as rails) 2 and 2 are fixed to a bed 20 in parallel with two rows, and a plurality of slide units, that is, sliders 1 are attached to the rails 2 and 2. The slide table 4 is fixed to the slider 1 and the various devices mounted on the slide table 4 are moved back and forth in the direction of arrow G. In the linear motion rolling guide unit, track grooves 5 are formed on both side wall surfaces 21 of the rail 2 in the longitudinal direction, and a slider 1 is slidably mounted on the rail 2 so as to extend over the rail 2. The slider 1 is relatively slidable with respect to the rail 2 and has a casing 3 having raceway grooves formed at positions opposed to the respective raceway grooves 5, and a large number of balls which are fitted between the opposing raceway grooves and are relatively movable. Etc., and end caps 6 attached to the sliding direction of the casing 3, that is, both ends in the longitudinal direction.

The slider 1 is placed in a state of straddling the rail 2 and freely slides by the interposition of rolling elements consisting of a plurality of balls circulating along the track groove 5 of the rail 2. .. That is, the rolling elements in the load region that travel in the track groove 5 of the rail 2 are guided to a later-described direction change path formed in the end cap 6, and are further formed above the casing 3 in parallel with the track groove. A large number of rolling elements move to the passage hole and endlessly circulate in the infinite circulation path. In this way, the rolling movement of the loaded rolling element located between the raceway groove formed in the slider 1 and the raceway groove 5 of the rail 2 allows the rail 2 and the slider 1 to slidably move relative to each other. You can

In the linear motion rolling guide unit shown in FIG. 7, the orbits and the rolling elements are moved vertically via the slider 1.
Since it is necessary to support a radial load and a moment load in each of the left and right directions, they are engaged in a state where the internal clearance is zero or a preload is applied. Since this linear motion rolling guide unit has the above-mentioned configuration, if there is an error in the parallelism of the rail 2, the sliding load of the slider 1 will increase, the service life of the guide unit will decrease, and the sliding resistance will decrease. As a result, changes will occur, which will seriously affect accuracy and performance. For this reason, not only the number of assembling steps for improving the accuracy of the parallelism of the rail 2 is significantly increased, but also both rails can be mounted with high accuracy of tens of microns or less over the entire length of the rail 2 having a length of several meters. Fixing in parallel is a difficult task that is almost impossible to handle.

Further, conventionally, a linear motion rolling guide unit as shown in FIG. 8 has been disclosed. The guide unit is formed by directly straddling a slide table 44 on track rails (hereinafter, referred to as rails) 42 and 45, and fixes a large number of infinitely circulating bearing units 46 and 47 to the slide table 44. The rail 41 is clamped by four bearing units 46 from four sides to support the load in the vertical and horizontal directions, and two bearing units 47 are pressed against the other rail 42 from the upper and lower sides. Even if there is a slight error in the parallelism between the rails 42, 42, one of the two bearing units 47 slightly moves in the direction of the arrow N along the upper and lower track surfaces of the rail 42 to absorb and eliminate the error in the parallelism. Is configured. In the bearing units 46 and 47, the rolling elements are rollers. In the figure, reference numeral 43 indicates a lubricating oil passage.

A linear guide unit similar to the above guide unit as shown in FIG. 8 is disclosed in Japanese Patent Application Laid-Open No. 3-60938. The linear guide unit comprises one of a pair of linear rails arranged in parallel with each other, a vertical support portion and a horizontal guide portion, and one side portion of a moving body guided by the both linear rails and the other linear rail. Support slidably along the rail with the movement in the left-right direction restricted.
Further, the other side portion of the moving body is supported by a horizontal guide portion of one straight rail so as to be slidable along the rail in a state in which the movement in the vertical direction is restricted and the movable portion can be moved in the horizontal direction. ..

Conventionally, as the linear motion rolling guide unit,
The ones shown in FIGS. 5 and 6 are disclosed. Figure 5
6 is a partially broken perspective view showing an outline of an example of a conventional linear motion rolling guide unit, and FIG. 6 is a plan view showing an end cap incorporated in the linear motion rolling guide unit of FIG.
5 and 6, parts having the same purpose as parts of FIG. 7 are designated by the same reference numerals.

As shown in FIG. 7, the linear motion rolling guide unit shown in FIG. 5 has two rows of track rails 2 on a bed.
(Hereinafter, referred to as rails) are fixed in parallel, a plurality of slide units, that is, sliders 1 are straddled on each rail 2, a slide table is fixed to the sliders 1, and various devices mounted on the slide table are moved forward and backward. It is a composition. In the linear motion rolling guide unit, track grooves 5 are formed on both side wall surfaces 21 of the rail 2 in the longitudinal direction, and a slider 1 is slidably mounted on the rail 2 so as to extend over the rail 2. The slider 1 has a casing 3 and end caps 6 fixed to both ends of the casing 3 in the longitudinal direction. Rail insertion recesses 10 through which the rails 2 are inserted and the casing 3 and the end caps 6 slide on the rails 2 are formed on the lower surfaces of the casing 3 and the end caps 6, respectively.

The slider 1 is relatively slidable with respect to the rail 2 and is fitted between the casing 3 having a raceway groove 9 formed at a position facing each raceway groove 5 and the opposite raceway groove 9 to move relatively. Rolling element 7 and rail 2 which are many possible balls
It has a lower surface sealing member 8 for achieving a seal between the casing 3 and the casing 3, and end caps 6 attached to both ends of the casing 3 in the sliding direction, that is, the longitudinal direction. Further, in order to prevent the rolling elements 7 from falling out of the casing 3, a holding band 18 is attached to the casing 3 so as to surround the many rolling elements 7.

The end cap 6 is, as shown in FIG.
A side seal member 17 for achieving a seal between the rail 2 and the slider 1 is attached, and a grease nipple 22 for supplying a lubricant to the sliding surface between the rail 2 and the slider 1 is attached. The end cap 6 is
A plurality of mounting holes 31 are attached to both end surfaces of the casing 3 with screws or the like, and are attached to the end caps 6.
The rail insertion recess 3 through which the rail 2 is inserted to pass through the lower surface thereof
0 is formed, the rolling element 7 forms a sliding surface between the rolling element 7 and the rail 2, and the rolling element 7 for circulation of the rolling element 7.
The direction change path 11 for changing the direction is formed on both sides.

This linear motion rolling guide unit is constructed as described above, and mounts the slider 1 over the rail 2 and circulates along the track groove 5 of the rail 2 for a plurality of rolling elements 7. It slides freely with the intervention of. As shown in FIG. 6, the rolling element 7 in the load region that travels in the raceway groove 5 of the rail 2 has a direction changing path 11 formed in the end cap 6.
Then, it moves to the return passage hole 13 formed in the upper portion in parallel with the raceway groove 9 of the casing 3, and the many rolling elements 7 endlessly circulate in the infinite circulation passage. Thus, the rolling of the loaded rolling element 7 located between the raceway groove 9 formed in the slider 1 and the raceway groove 5 of the rail 2 causes the rail 2 and the slider 1 to slidably move relative to each other. can do.

[0013]

By the way, in the linear motion rolling guide unit as described above, the rail 2 is mounted on the bed 20.
In the case of fixing to the rail 2, a mounting hole 15 is formed from the upper surface 19 of the rail 2 toward the lower surface, the mounting hole 15 is aligned with the screw hole provided in the bed 20, and the bolt 16 is passed through the mounting hole 15 to make the screw hole. The rail 2 is fixed to the bed 20 by screwing it into the bed 20 (see FIG. 3 or 4). In this case, when the linear motion rolling guide unit is applied to a processing machine such as a woodworking processing machine or a food processing machine, in an environment where foreign matter may be mixed into the slider 1 of the linear motion rolling guide unit from the outside. , The bolt 1 in the mounting hole 15 formed in the track rail 2.
6 is inserted and embedded, then an embedding plug 14 of a filling material is embedded in the remaining concave portion of the mounting hole 15 formed above the head upper surface of the bolt 16.

Conventionally, when the stopper 14 is embedded in the mounting hole 15 of the track rail 2, the upper portion of the stopper 14 projects from the upper surface 19 of the track rail 2, so that the upper surface 19 of the track rail 2 and the stopper 14 are embedded. Processing for making the upper surface of 14 the same surface is performed. The work of cutting the protruding portion of the embedding plug 14 protruding from the upper surface 19 of the track rail 2 to form the same surface is important for improving the sealing performance between the track rail 2 and the side seal member 17 of the slider 1. Is an element.

Conventionally, in order to embed the filling plug 14 in the remaining recess of the mounting hole 15 of the track rail 2, the filling plug 14 is used.
Is pressed into the mounting hole 15, or a filler such as a resin material, a copper material, or an aluminum alloy material is melted and filled.
Further, as described above, when the upper surface 19 of the track rail 2 and the upper surface of the embedding plug 14 are flush with each other, the embedding plug 14 is press-fitted into the mounting hole 15 of the track rail 2 and then the flat plate is embedding it.
Then, the upper surface of the embedding plug 14 is made to be the same as the upper surface 19 of the track rail 2, and the upper portion of the embedding plug 14 is cut and removed by a cutter or the like in some cases. When the filling plug 14 is a filling material such as a resin material, the filling material is manually cut by a cutter or the like to perform the filling plug 1
At present, the upper surface of 4 is the same as the upper surface 19 of the track rail 2.

However, in the above manual work,
Since it is extremely inefficient and is manual work, the upper surface of the embedding plug 14 is uneven depending on the operator, which is not preferable. That is, when there is an uneven surface on the upper surface of the plug 14, the sealing performance between the upper surface 19 of the rail 2 and the side surface seal member 17 of the slider 1 in the linear motion rolling guide unit becomes poor, and the side surface The sealing member 17 wears in a short period of time, and the sealing effect is lost,
There is a problem that the life of the side seal member 17 is shortened.

Therefore, an object of the present invention is to solve the above-mentioned problems, and a linear motion rolling for rolling a raceway constituted by a raceway groove formed in a slider and a raceway in which a rolling element is formed. A track in a linear motion rolling guide unit in which the cutter is detachably fixed to the guide unit and the upper part of the plug protruding from the top surface of the track rail can be removed by cutting by simply sliding the slider on the track rail. An object is to provide a rail plug cutting apparatus and a plug plug cutting method.

[0018]

In order to achieve the above object, the present invention is configured as follows. That is,
The present invention provides a track rail having a rail track groove and a mounting hole penetrating from the upper surface to the lower surface, a casing provided with a casing track groove facing the rail track groove, and a casing spanning the track rail, and both ends of the casing. A slider having an end cap attached to a surface, a track formed by the rail track groove and the casing track groove, and a number of rolling elements that circulate and roll in a direction change path formed in the end cap, and the end cap. A cutter that is detachably fixed to the slider and that is located on the front end side of and that cuts a portion of the embedding plug embedded in the mounting hole of the track rail that protrudes from the upper surface of the track rail.
The present invention relates to an embedding cutting device for a track rail in a linear motion rolling guide unit.

Further, in this track rail plug cutting processing device, the cutter is detachably fixed by utilizing the screw holes for mounting the slide table of the slider.

Alternatively, in this track rail plug cutting processing device, the cutter is detachably fixed to the front end side of the slider.

Further, in this track rail plug cutting processing apparatus, a plug pressing member is attached to the cutter on the slider side which is close to the cutter.

Further, in this track rail plug cutting device, the cutter is provided with a blade tip adjusting means for adjusting a gap between the blade tip and the upper surface of the rail.

Alternatively, the present invention is a linear motion rolling guide unit for cutting a portion of a plug plug embedded in the bolt hole protruding from the upper surface of the track rail, which rail rail groove and a bolt hole penetrating from the upper surface to the lower surface. In the method for cutting a plug for track rails according to the present invention, by sliding a slider having a casing and an end cap spanning the track rail, the slider is located at the front end side of the end cap and can be removed from the slider. The present invention relates to a plug rail cutting processing method for a track rail in a linear motion rolling guide unit, which is characterized in that cutting is eliminated by a cutter fixed to the.

[0024]

The track rail plug cutting apparatus and track plug cutting method in the linear motion rolling guide unit according to the present invention are configured as described above and have the following functions. That is, according to the present invention, since the cutter is detachably fixed to the slider so as to be located on the front end side of the slider, the cutter can be slidably moved on the track rail, and the cutter can be inserted from the upper surface of the track rail. The upper part of can be cut and eliminated. Therefore, since the linear motion rolling guide unit itself has a high running accuracy, if the cutter itself is selected with the optimum material for the plug, the upper part of the plug can be cut well and the top surface of the rail can be cut. The upper surface of the plug and the upper surface of the plug can be processed on the same surface with high accuracy.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a track rail plug cutting apparatus and a plug cutting method for a track rail in a linear motion rolling guide unit according to the present invention will be described below with reference to the drawings.
First, with reference to FIGS. 1 and 2, an embodiment of a track rail plug cutting apparatus and a plug cutting method for a track rail in a linear motion rolling guide unit according to the present invention will be described.
FIG. 1 is a schematic perspective view showing an embodiment of an embedding cutting device for track rails in this linear motion rolling guide unit,
2 and FIG. 2 are schematic perspective views showing an embodiment of a cutter attached to the track rail plug cutting device of FIG.
In FIG. 1, parts having the same purpose as parts of FIG. 5 are given the same reference numerals.

As shown in FIG. 1, a linear motion rolling guide unit incorporating this track rail plug cutting and processing apparatus is provided with a track rail 2 (hereinafter,
(Referred to as rail), and the slider 1 that is laid across the rail 2.
have. A mounting hole 15 is formed in the rail 2 so as to penetrate from the upper surface 19 to the lower surface. The rail 2 is fixed to, for example, the bed 20 (see FIG. 7) by a bolt 16 penetrating the mounting hole 15. Furthermore, rail 2
After inserting the bolt 16 into the mounting hole 15 of the, the recess of the mounting hole 15 formed on the upper surface of the head of the bolt 16 is
A plug 14 such as a filling material is embedded.

The plug 14 embedded in the mounting hole 15 formed in the rail 2 has, for example, a structure shown in FIG. The embedding plug 14 has a lower portion cut out to form an annular leg portion 40 in the peripheral portion and a small air vent hole 28. Therefore, the embedding plug 14 has a spring action due to the diameter reduction of the annular leg portion 40 by the annular leg portion 40, and is pressed into the mounting hole 15 formed in the rail 2.

The slider 1 is mounted on a casing 3 having a casing raceway groove 9 (see FIG. 5) facing the rail raceway groove 5, end caps 6 attached to both end faces of the casing 3, and both end faces of the end cap 6. It has a side seal member 17. Further, a plurality of screw holes 34 are formed in the upper part of the casing 3 for attaching the slide table 4 (see FIG. 7). Further, a plurality of screw holes are formed on both end surfaces of the casing 3 for attaching the end cap 6 and the side surface seal member 17.
In some cases, since the side surface seal member 17 is attached to the end surface of the end cap 6, a plurality of screw holes can be separately formed in the end cap 6. The end cap 6 is formed with a direction changing path 11 (see FIG. 6) for changing the direction of the rolling element 7 (see FIG. 5). The rolling element
The rail track groove 5 and the casing track groove 9 and the direction change path 11 formed in the end cap 6 are configured to circulate and roll.

This track rail plug embedding cutting device has a cutter 25 which is detachably fixed to the slider 1 at the front end side of the end cap 6 in the linear motion rolling guide unit. is there. In this cutter 25, a mounting portion 23 and a cutting edge 24 extending downward from the mounting portion 23 are integrally configured in an L shape. The attachment portion 23 of the cutter 25 has a plurality of through holes 26 through which the bolts 29 can be inserted at positions corresponding to the screw holes 34 formed in the casing 3, and a cutting edge for adjusting the height of the cutting edge 24 with respect to the upper surface 19 of the rail 2. A screw hole 38 into which the adjusting bolt 41 is screwed is formed. Two screw holes 38 formed in the mounting portion 23 of the cutter 25 are formed at intervals in the sliding direction. The tip surface of the blade adjusting bolt 41 is in contact with the upper surface of the casing 3, and the tip of the blade 24 of the cutter 25 and the upper surface of the rail 2 are adjusted by adjusting the extent to which the blade adjusting bolt 41 is screwed into the screw hole 38. The clearance between 19 and 19 can be adjusted.

The screw holes 34 formed in the casing 3 are provided for fixing the slide table 4 (see FIG. 7) on the casing 3. These screw holes 34
Is used to attach the cutter 25 to the slider 1. The mounting portion 23 of the cutter 25 is placed on the upper surface of the casing 3 to align the through hole 26 with the screw hole 34, and the bolt 29 is inserted into the through hole 26 and screwed and tightened in the screw hole 34. 25 is fixed to the casing 3. In this state, the cutting edge 24 of the cutter 25 is located on the front end surface of the side surface seal member 17, and the tip of the cutting edge 24 is set in close contact with the upper surface 19 of the rail 2.

In this track rail plug cutting machine, in order to assemble the cutter 25 into the linear motion rolling guide unit, the blade adjusting bolt 41 is adjusted so that the tip of the blade 24 of the cutter 25 is against the upper surface 19 of the rail 2. The clearance is set to zero, the bolt 29 is passed through the through hole 26 and screwed into the screw hole 34, and the cutter 25 is fixed to the casing 3.
The cutting edge 24 of the cutter 25 in the track rail plug cutting and machining apparatus need only be formed to the width of the plug 14 embedded in the mounting hole 15 of the rail 2. Also,
Although not shown, a handle for pushing by hand may be provided on the mounting portion 23 of the cutter 25 to improve workability. Further, it goes without saying that the material of the cutter 25 may be selected so as to be compatible with the material of the embedding plug 14.

Using this track rail plug cutting processing device, the mounting hole 1 protruding from the upper surface of the track rail 2
The following method can be used to cut the portion of the embedding plug 14 embedded in No. 5. The method of cutting a plug for track rails in this linear motion rolling guide unit is embedded in a mounting hole 15 protruding from an upper surface 19 of a track rail 2 having a rail track groove 5 and a mounting hole 15 penetrating from the upper surface to the lower surface. The portion of the plug 14 is cut. That is, the tip of the cutting edge 24 of the cutter 25 is the top surface 19 of the rail 2.
On the other hand, if the cutter 25 is attached to the casing 3 with the gap being zero and the slider 1 is slidably moved on the rail 2,
The cutter 25 can cut the upper part of the plug 14 protruding upward from the upper surface 19 of the rail 2 to eliminate the protruding part of the plug 14, and the upper surface 19 of the rail 2 and the upper surface of the plug 14 can be machined on the same surface. can do.

When the plug 25 is cut by the cutter 25, the clearance between the cutting edge 24 of the cutter 25 and the rail upper surface 19 is adjusted by the cutting edge adjusting bolt 41. Since the cutting edge 24 of the cutter 25 can remove the convex portion generated on the upper surface 19 of the rail 2 by cutting, it can effectively act also against environmental changes such as adhesion of foreign matter to the rail upper surface 19. It is also possible to protect the side seal member 17 on the downstream side where the cutter 25 is present.

Next, with reference to FIG. 3, another embodiment of the track rail plug cutting apparatus and the plug cutting method for the track rail in the linear motion rolling guide unit according to the present invention will be described. FIG. 3 is a partially cutaway schematic perspective view showing another embodiment of the track rail embedded plug cutting apparatus in this linear motion rolling guide unit. In FIG. 3, the same parts as those of FIG. 5 are designated by the same reference numerals.

As shown in FIG. 3, this track rail plugging and cutting apparatus has the same structure as that of the above embodiment except that the shape of the cutter is different. The cutter 33 shown in FIG. 3 has a cutting edge 32 at a portion corresponding to the embedding plug 14, as shown by being broken in FIG.
The cutter 33 is located on the front surface of the side seal member 17 and is detachably fixed to the end cap 6 by a bolt 27. In some cases, the cutter 33 may be located on the front surface of the side seal member 17 and penetrate the through hole of the end cap 6 to be detachably fixed to the casing 3 by the bolt 27.

If the bolt hole for attaching the cutter 33 to the slider 1 is formed as a long hole, the cutter 33 should be moved upward and fixed to the slider 1 after cutting the plug 14 with the cutter 33. For example, the cutter 33 is installed in front of the side seal member 17 and also has a function of protecting the side seal member 17. Or cutter 3
The portions other than the cutting edge 32 of 3 may be formed in the non-contact upper portion so that the shape near the rail 2 is formed in the same gap as the gap formed by the slider 1 with respect to the rail 2. In that case, the portion of the cutter 33 other than the cutting edge 32 can also function as a scraper.

Further, with reference to FIG. 4, still another embodiment of the track rail plug cutting apparatus and the track plug cutting method in the linear motion rolling guide unit according to the present invention will be described. FIG. 4 is a cross-sectional view showing a part of still another embodiment of the track rail plug cutting and processing apparatus in the linear motion rolling guide unit. 4, parts having the same purpose as parts of FIG. 5 are given the same reference numerals.

As shown in FIG. 4, this apparatus for cutting plugs for track rails has the same structure as that of the embodiment shown in FIG. 1 except that the shape of the cutter is different. The cutter 35 shown in FIG. 4 has a cutting edge 37 at a portion corresponding to the embedding plug 14. The cutter 35 itself has the same structure as that of the above-described embodiment, but the plug pressing member 36 is attached to the cutter 35 on the slider side near the cutter 35. The plug stopper pressing member 36 has a spring force, and after the plug stopper 14 is cut by the blade edge 37 of the cutter 35, the plug stopper 14 is attached to the upper surface 1 of the rail 2.
It has a function of pressing the upper surface of the embedding plug 14 in order to prevent it from jumping out.

[0039]

EFFECT OF THE INVENTION The plug rail cutting device for a track rail and the plug cutting method of the linear motion rolling guide unit according to the present invention are configured as described above, and have the following effects. That is, according to the present invention, since the cutter is located on the front end side of the end cap and is detachably fixed to the slider, only by sliding the slider on the track rail, the cutter can be inserted from the upper surface of the track rail. The upper part of can be cut and eliminated. In other words, in the past, cutting of the upper part of the plug by hand was carried out manually, but the running accuracy of the linear motion rolling guide unit is a few μm.
Since the plugs such as the filler are cut by the cutter attached to the slider of m, the flatness of the rail surface can be dramatically improved. Moreover, the flatness of the rail top surface does not vary in quality, high-precision machining can be achieved, and the working time can be greatly reduced. Further, the cutting work on the upper part of the plug can be continued for a long time depending on the life of the cutting edge, and the durability can be improved. Therefore, the sealing performance of the linear motion rolling guide unit can be greatly improved, the upper portion of the embedding stopper does not project from the upper surface of the rail, and it can be processed on the same surface, so that the side seal member attached to the front end surface of the end cap can be Wear can be prevented.

Also, in this track rail plug cutting device, the cutter is detachably fixed to the casing, or the cutter is detachably fixed to the end cap, so that the cutter is attached to the casing or the end cap. It is possible to easily attach or detach the cutter to the slider to improve the workability, and to reliably and accurately set the cutter on the slider.

Further, in this track rail plug cutting device, the plug pressing member is attached to the cutter on the slider side close to the cutter. Therefore, after cutting the plug with the cutter, the plug is inserted into the mounting hole. The slider can be smoothly slid on the rail without jumping out of the rail.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of an embedding cutting device for a track rail in a linear motion rolling guide unit according to the present invention.

FIG. 2 is a schematic perspective view showing an embodiment of a cutter attached to the track rail plug cutting processing device of FIG.

FIG. 3 is a schematic perspective view showing another embodiment of an embedding cutting device for a track rail in a linear motion rolling guide unit according to the present invention.

FIG. 4 is a schematic sectional view showing still another embodiment of the plug rail cutting processing device for a track rail in the linear motion rolling guide unit according to the present invention.

FIG. 5 is a partially cutaway perspective view showing a relationship between a slider and a rail to which the linear motion rolling guide unit according to the present invention can be applied.

6 is a front view showing an end cap of the linear motion rolling guide unit of FIG. 5. FIG.

FIG. 7 is a perspective view showing an example of a conventional linear motion rolling guide unit.

FIG. 8 is a cross-sectional view showing another example of a conventional linear motion rolling guide unit.

[Explanation of symbols]

 1 slider 2 track rail 3 casing 4 slide table 5 rail track groove 6 end cap 7 rolling element 9 casing track groove 10 rail insertion recess 11 direction change path 14 plug 15 mounting hole 16 bolt 25, 33, 35 cutter 24, 32, 37 Blade Edge 34 Screw Hole 38 Screw Hole 41 Blade Edge Adjustment Bolt (Blade Edge Adjusting Means)

Claims (6)

[Claims] 1. A track rail having a rail track groove and a mounting hole penetrating from an upper surface to a lower surface, a casing provided with a casing track groove facing the rail track groove, and a casing spanning the track rail, and the casing. A slider having end caps attached to both end surfaces, a track formed by the rail track groove and the casing track groove, and a number of rolling elements circulatingly rolling in a direction change path formed in the end cap, and the end. A linear motion rolling guide having a cutter located on the front end side of the cap and detachably fixed to the slider and for cutting a portion of an embedded plug embedded in the mounting hole of the track rail protruding from the upper surface of the track rail. Equipment for cutting plugs for track rails in units. 2. The apparatus for cutting plug embedding for a track rail in a linear motion rolling guide unit according to claim 1, wherein the cutter is detachably fixed using a screw hole for attaching the slide table of the slider. 3. The plug cutting device for track rails in a linear motion rolling guide unit according to claim 1, wherein the cutter is detachably fixed to the front end side of the slider. 4. The embedding cutting device for a track rail in a linear motion rolling guide unit according to claim 1, wherein an embedding pressing member is attached to the cutter on a slider side near the cutter. 5. The plug rail cutting device for a track rail in a linear motion rolling guide unit according to claim 1, wherein the cutter is provided with blade edge adjusting means for adjusting a gap between an edge of the cutter and an upper surface of the rail. 6. A linear motion rolling guide unit for a track rail in a linear motion rolling guide unit for cutting a portion of a plug plug embedded in the mounting hole protruding from the upper surface of the track rail, the rail track groove and a mounting hole penetrating from the upper surface to the lower surface. In the plug cutting method, a cutter detachably fixed to the slider located on the front end side of the end cap by sliding a slider having a casing spanning the track rail and an end cap. A plug rail cutting method for a track rail in a linear motion rolling guide unit, which is characterized in that cutting is eliminated by means of.