TW202441088A - Linear Guides - Google Patents

Abstract

The linear guide rail of the present invention includes a guide rail, a slider, and a lubricating unit, and the lubricating unit has: a lubricant supply component, an outer shell for accommodating the lubricant supply component, and a pressing mechanism, the pressing mechanism has: a first pressing portion, which is arranged in the recess in a manner of pressing the recess toward the left and right outer sides of the slider; and a second pressing portion, which is an arc-shaped protrusion that presses the side surface of the lubricant supply component toward the guide rail and toward the left and right inner sides, and is arranged on the left and right outer sides and lower sides of the mounting portion.

Description

Linear Guides

The present invention relates to a linear guide rail having a slider with a lubrication unit installed therein.

Conventionally, a linear guide includes an axially extending guide rail and a slider that is relatively movable across the guide rail, and the slider relatively moves axially on the guide rail via a plurality of rolling bodies (balls) circulating between rolling body rolling grooves formed in the guide rail and the slider. This linear guide is often used in linear motion mechanisms of various production equipment. In order to use the linear guide stably for a long period of time, it is important to supply a sufficient amount of lubricant to the rolling body rolling grooves and the balls to maintain a good lubrication state.

Patent document 1 describes a linear guide rail, which includes a porous lubricant supply member containing a lubricant, a housing for housing the lubricant supply member, and a lubricating unit of a pressing mechanism for pressing the lubricant supply member housed in the housing in contact with the guide rail, and is arranged at the axial end of the slider, so that the lubricant impregnated in the lubricant supply member can be stably supplied to the rolling groove of the rolling element of the guide rail for a long period of time. [Prior technical document] [Patent document]

Patent document 1: Japanese Patent Application No. 2018-40389

[The problem the invention is trying to solve]

The lubricating unit of Patent Document 1 is provided with a recessed portion formed in the lubricant supply member and a pressing portion that is pressed and engaged with the recessed portion with a predetermined tightening margin, so that the protrusion formed in the inner corner of the lubricant supply member that is opened downward and is substantially U-shaped, and a pair of protrusions formed on the inner side of the wing rail portion of the lubricant supply member are effectively pressed against the axial rail track surface formed in the ridge portion of the upper portion of the guide rail and the axial rail track surface formed on the left and right side surfaces of the guide rail, thereby efficiently and continuously supplying the lubricant to the rail track surface. However, depending on the size of the lubricating unit and the configuration of the mounting portion for mounting the lubricating unit on the side of the slider, it is sometimes not possible to fully ensure the wall thickness T in the width direction of the wing rail portion of the lubricant supply member disposed on the side of the guide rail. In this case, it is difficult to make the protrusion of the lubricant supply member contact the rail track surface stably.

The present invention is completed in view of the above-mentioned problems, and its purpose is to provide a linear guide rail that can efficiently and continuously supply the lubricant impregnated in the lubricant supply member to the guide rail, even if the wall thickness of the lubricant supply member in the width direction cannot be fully ensured due to size and specifications. [Technical means for solving the problem]

The above-mentioned object of the present invention is achieved by the following structure. [1] A linear guide rail, comprising: a guide rail, a slider slidably engaged on the guide rail, and a lubricating unit mounted on the axial end of the slider, and the lubricating unit has: a lubricant supply member impregnated with a lubricant to be supplied to the guide rail; a housing that accommodates the lubricant supply member; and a pressing mechanism that presses the lubricant supply member accommodated in the housing against the side of the guide rail; a mounting portion mounted on the axial end of the slider is provided on the housing; The aforementioned lubricant supply component comprises: a pair of wing rails, which are arranged on the outer sides of the left and right side surfaces of the aforementioned guide rail; a connecting portion, which connects the upper ends of the aforementioned pair of wing rails extending in the up-down direction; a recess, which is formed in the aforementioned connecting portion; a mounting hole, which is arranged in the aforementioned wing rail, for the aforementioned mounting portion to be inserted; and a protrusion, which can slide along the side track surface of the rail arranged on the side surface of the aforementioned guide rail; The aforementioned pressing mechanism comprises: The first pressing portion, which is arranged on the upper side of the left-right center of the aforementioned outer shell, and is arranged in the aforementioned recess in a manner that allows the aforementioned recess to move in the up-down direction of the aforementioned slider and presses the aforementioned recess on the left-right outer side of the aforementioned slider; and The second pressing portion is disposed on the left-right outer side and lower side of the mounting portion so as to press the side surface of the lubricant supply member toward the guide rail against the arc-shaped protrusion on the inner side in the left-right direction. [2] The linear guide rail as described in [1], wherein the second pressing portion is configured as an arc-shaped protrusion integrally formed on the inner wall side of the housing. [3] The linear guide rail as described in [1], wherein the second pressing portion is configured as an arc-shaped protrusion integrally formed on the side surface of the lubricant supply member. [4] A linear guide rail as described in [1], wherein the second pressing portion comprises: an accessory including an arc-shaped protrusion, and a disassembly portion for disassembling the accessory from the housing, and a plurality of the disassembly portions are provided along the inner wall of the housing. [5] A linear guide rail as described in [1], wherein the mounting hole is provided in a D-shape with a straight line portion in the vertical direction provided on the inner side. [6] A linear guide rail as described in any one of [1] to [5], wherein a chamfer portion is provided on the axial front end side of the first pressing portion and the second pressing portion. [7] A linear guide rail as described in [6], wherein the chamfer width of the chamfer portion is set to 0.1 to 1 mm, and the chamfer angle is set to 15 to 45°. [Effect of the invention]

According to the linear guide rail of the present invention, for a lubricant supply component in which a sufficient wall thickness cannot be ensured at the wing rail portion, the pressing force for pressing the wing rail portion of the lubricant supply component against the guide rail can be effectively exerted.

The linear guide rail (linear guide device) of each embodiment of the present invention is described in detail below based on the drawings. In addition, in the following description, the up-down direction, width direction, and axial direction of the slider respectively represent the directions of the state of the slider assembled on the guide rail arranged with the length direction set horizontally. The width direction of the slider is perpendicular to the length direction of the guide rail and the up-down direction of the slider, also called the left-right direction, and the axial direction of the slider is along the length direction of the guide rail, also called the front-back direction.

(First embodiment) The structure of the linear guide is described based on Figures 1 and 2. Figure 1 is a three-dimensional diagram of the linear guide of the present invention, and Figure 2 is a three-dimensional diagram of a slider. As shown in Figure 1, the linear guide 10 of the first embodiment has: a straight guide rail 20; and a slider 30, which is assembled in a manner straddling the guide rail 20 and is slidably engaged via a plurality of rolling bodies (balls) not shown.

On the two side surfaces 23 of the guide rail 20, rail side track surfaces 21 with a cross-section of approximately semicircular or Gothic arch shape are formed in the axial direction, and on the edge portion where the upper surface 24 of the guide rail 20 and the two side surfaces 23 intersect, rail side track surfaces 22 with a cross-section of approximately 1/4 arc shape are formed in the axial direction.

As shown in FIG. 2 , the slider 30 is composed of the following parts, namely: a slider body 31 , end caps 32 mounted on both axial ends of the slider body 31 , and a lubricating unit 33 mounted on further axial ends of each end cap 32 .

The slider body 31 is formed in a substantially U-shaped shape, and has a slider side track surface (not shown) on the inner side surface of a pair of wing rails in the vertical direction, which is opposite to the rail side track surfaces 21 and 22 of the guide rail 20, and has a rolling body return circuit. In addition, the end cover 32 formed in a substantially U-shaped shape has a curved path (not shown) that connects the slider side track surface of the slider body 31 and the rolling body return circuit, and the rail side track surfaces 21 and 22, the slider side track surface, the rolling body return circuit, and the curved paths at both ends form a rolling body circulation path. In the rolling body circulation path, a plurality of balls are freely loaded to roll.

Next, the lubricating unit 33 is described based on Figures 2 to 5. Figure 3 (A) is a front view showing the lubricating unit, Figure 3 (B) is a front view showing the pressing force acting on the lubricant supply member, Figure 4 (A) is a front view showing the housing, Figure 4 (B) is a cross-sectional view showing the main part of the mounting portion, and Figure 5 is a front view showing the lubricant supply member.

As shown in FIG. 2 , the lubricating unit 33 includes a housing 40 made of synthetic resin, a lubricant supply member 50 accommodated in the housing 40 , and a side sealing member 60 .

The side sealing member 60 is a substantially U-shaped steel plate matching the outer shape of the end cover 32. A through hole 61 for mounting screws is formed in a pair of wing rails in the up-down direction, and a through hole 64 for grease nipples is formed in the connecting portion connecting the two wing rails. The side sealing member 60 is non-contacting with the guide rail 20. In order to seal the gap between the slider 30 and the guide rail 20, an elastic body 65 such as nitrile rubber or grease-containing polyurethane rubber is provided on the inner side of the substantially U-shaped steel plate.

The lubricant supply member 50 is formed of a porous body such as rubber or synthetic resin, a fiber tangled body, etc., and is impregnated with a lubricant. As the lubricant, mineral oil, synthetic oil, grease, etc. can be used. As the synthetic resin, polyurethane, polyethylene, polypropylene, etc. can be used. As the fiber tangled body, wool felt, polyester fiber, nylon fiber, acrylic fiber, etc. can be used.

The lubricant supply member 50 is formed into a generally U-shaped shape with the lower side open so as to face the upper surface 24 of the guide rail 20 and the two side surfaces 23 including the rail side surfaces 21 and 22. In other words, the lubricant supply member 50 has a pair of left and right wing rail portions 50a, 50a extending in the vertical direction, and a connecting portion 50b in the left and right direction connecting the upper portions of the two wing rail portions.

On the inner side of the two wing rails of the lubricant supply member 50, a roughly semicircular protrusion 51 is provided for slidingly contacting the rail side track surface 21 of the guide rail 20 to supply lubricant. In addition, a 1/4 arc-shaped protrusion 52 is provided for slidingly contacting the rail side track surface 22 of the guide rail 20 to supply lubricant at the inner corner formed by the two wing rails of the lubricant supply member 50 and the connecting portion. In addition, a first recess 53 opened upward is formed at the approximate center of the upper end of the lubricant supply member 50. The first recess 53 has two parallel planes facing each other in the width direction, forming a roughly U-shaped shape. Furthermore, axial mounting holes 54, 54 are respectively provided in the two wing rails 50a, 50a of the lubricant supply component 50 for inserting the mounting portion 46 formed on the side of the outer shell 40. Each mounting hole 54, 54 is formed into a D-shape with a straight line portion in the up and down direction provided on the left and right inner sides. According to this structure, even if the lubricant supply component 50 is small in size, the wall thickness of the two wing rails in the left and right directions can be increased as much as possible. The structure related to the lubricant supply component 50 can refer to Figure 5.

The housing 40 is made by injection molding a hard resin such as polyacetal or polyamide, and is formed into a substantially U-shaped shape of substantially the same size as the end cap 32. The housing 40 is formed by an outer peripheral wall 41 covering the outer peripheral portion of the lubricant supply member 50 accommodated therein, and an end wall 42 covering the axial end surface of the lubricant supply member 50, thereby forming a receiving portion 43 for accommodating the lubricant supply member 50. In addition, the housing 40 can be made by cutting or stamping a metal material such as steel or aluminum.

Axial mounting portions 46, 46 inserted into mounting holes 54, 54 of the lubricant supply member 50, a first pressing portion 44 as an upper pressing mechanism, and a second pressing portion 45 as a side pressing mechanism are provided in the housing portion 43. The configuration can be referred to in FIG. 4(A).

The mounting portion 46 is a cylindrical member formed in the axial direction, and a screw insertion hole 47 is formed on the inner side thereof for fixing the housing 40 to the side of the slider body 31. In addition, the mounting portion 46 is formed in a D-shape with a vertical straight line portion 46a provided on the left and right inner sides for engaging the lubricant supply member 50.

The first pressing portion 44 is a pressing mechanism disposed above the guide rail 20 and pressing the upper portion of the lubricant supply member 50, and is a cylindrical member disposed at the upper portion of the housing portion 43 and approximately at the center in the left-right direction. A through hole 48 communicating with the through hole 64 for the grease nipple is formed on the inner side of the first pressing portion 44. In addition, the first pressing portion 44 may be formed in a structure continuously formed with the outer peripheral wall 41 and the end wall 42.

The second pressing portion 45 is a protrusion provided at the lower end of the left and right sides of the receiving portion 43, and is formed symmetrically on the left and right sides of the outer peripheral wall 41 and the end wall 42. More specifically, the second pressing portion 45 is an arc-shaped protrusion disposed on the left and right outer sides and lower sides of the mounting portion 46, and protrudes from the inner wall of the outer peripheral wall 41 to the left and right inner sides.

Based on the above facts, the first recess 53 of the lubricant supply member 50 is inserted into the first pressing portion 44 of the housing 40, and the mounting portion 46 is inserted into the pair of mounting holes 54, 54 respectively, and the lubricant supply member 50 is accommodated in the receiving portion 43 of the housing 40. The structure can be referred to in FIG. 3 (A).

Thus, the housing 40 can prevent the lubricant supply member 50 from being damaged during operation by accommodating the lubricant supply member 50. In particular, when the lubricant impregnation amount of the lubricant supply member 50 is 70% by weight or more, the amount of resin is reduced accordingly, and the strength of the lubricant supply member 50 is reduced, so the use of the housing is effective.

At this time, the outer diameter of the first pressing portion 44 is set to be larger than the inner width (left-right width) of the first recess 53, so the first pressing portion 44 and the first recess 53 interfere with each other only by the tightening margin T1. Similarly, since the pair of second pressing portions 45, 45 are set to narrow the width direction of the lower end side of the receiving portion 43, the arc portions on the left and right inner sides of the pair of second pressing portions 45, 45 and the lower end of the side surface of the lubricant supply member 50 interfere with the tightening margin T2. Normally, the tightening margins T1 and T2 are less than 1% of the rail width of the guide rail 20. Specifically, when the rail width of the guide rail 20 is 30 mm, the standard is about 0.2 to 0.3 mm on one side. However, in this embodiment, the tightening margins T1 and T2 can be set to about 0.02 to 1.0 mm on one side when the rail width is 30 mm according to the required pressing force. That is, the first pressing portion 44 is pressed into the first recess 53 with the tightening margin T1, and the second pressing portion 45 is pressed into the lower side of the lubricant supply component 50 with the tightening margin T2. The structure can be referred to Figure 3 (A).

In addition, the first pressing portion 44 applies a pressing force in the width direction to the first recess 53, but allows and does not restrict the movement in the vertical direction. Similarly, the second pressing portion 45 applies a pressing force in the width direction to the lower side of the lubricant supply member 50, but allows and does not restrict the movement in the vertical direction.

In addition, in the second pressing portion 45, as shown in FIG. 4 (A) and FIG. 4 (B), a chamfered portion 44a, 45a consisting of a chamfer angle θ and a chamfer amount C3 is provided at a position on the left and right inner sides of the front end side edge of the second pressing portion 45. Thereby, the installation of the lubricant supply component 50 to the outer shell 40 becomes easy. The chamfer angle θ of each chamfered portion 44a, 45a is preferably 15 to 45°. In addition, the chamfer amount C3 of each chamfered portion 44a, 45a is preferably set to about 0.1 to 1 mm. In addition, a pair of chamfered portions 44a, 44a are also provided at the width direction end of the front end side edge of the first pressing portion 44.

Next, the functions and effects of each pressing portion 44, 45 are described. By pressing the first pressing portion 44 into the first recess 53 with a tightening margin T1, a pressing force in the left and right directions of the direction of expanding the inner width of the first recess 53 is applied to the first recess 53. As a result, the protrusions 51, 52 of the lubricant supply member 50 are displaced in the width direction, and the pressing force of the protrusions 51, 52 on the rail side rail surfaces 21, 22 of the guide rail 20 is increased. Furthermore, by pressing the second pressing portion 45 toward the lower side of the lubricant supply member 50 with a tightening margin T2, a pressing force is applied to the lubricant supply member 50 in a direction to close the lower end sides of the two wing rails, i.e., the open end sides.

Thus, as in the present embodiment, by forming mounting holes 54 in the two wing rail portions 50a, 50a of the lubricant supply member 50, even when the wall thickness T of the wing rail portion 50a between the mounting holes 54 and the side surface of the guide rail 20 cannot be fully ensured, the protrusion 52 of the lubricant supply member 50 can effectively act on the rail side rail surfaces 21, 22 of the guide rail 20. The structure can be referred to Figure 3 (B). Furthermore, for example, even if the amount of lubricant impregnated in the lubricant supply member 50 decreases, the outer shape of the lubricant supply member 50 shrinks, and the two wing rails are deformed in the direction of separation, the second pressing portion 45 can prevent the two wing rails of the lubricant supply member 50 from deforming in the direction of separation. That is, it is possible to prevent the protrusion 51 of the lubricant supply member 50 from separating from the rail side track surface 21 and becoming non-contact, and the supply of lubricant can be stopped midway.

Based on the above facts, the lubricant impregnated in the lubricant supply member 50 is finally smoothly supplied from the protrusions 51 and 52 to the rail side track surfaces 21 and 22. In addition, the pressing force of the protrusions 51 and 52 on the rail side track surfaces 21 and 22 is adjusted by the shape of the lubricant supply member 50, the first recess 53, and the sizes of the first pressing portion 44 and the second pressing portion 45.

(Second embodiment) Figures 6(A) and 6(B) are front views of the housing and accessories of the second embodiment. The housing 40A of the second embodiment has a disassembly portion 49 formed on the inner wall side of the outer peripheral wall 41, which is a recess for mounting the accessory 70. Since the other parts are the same as the lubricating unit 33 of the first embodiment, the same symbols or equivalent symbols are attached to the same parts, and the description is simplified or omitted.

In the example shown in Fig. 6 (A), the disassembly parts 49 are arranged at a predetermined interval on the entire peripheral wall 41. In addition, the disassembly parts 49 can be arranged only on the left and right side surfaces of the inner wall of the peripheral wall 41.

The accessory 70 has: a pressing portion 71 in an arc shape; and a mounting portion 72, which is formed on the surface opposite to the pressing portion 71 and is a convex portion for being detachably mounted to the detachable portion 49. At this time, the pressing portion 71 is formed in the same shape as the second pressing portion 45 described above. The pressing portion 71 can be a plate-shaped member formed in an arc shape in front view, or can be an umbrella-shaped member formed in an arc shape in the thickness direction.

According to this structure, by preparing different heights of the pressing portion 71 for the tightening margin of the outer peripheral surface of the pressing lubricant supply member 50 in advance as each accessory 70, the position of the outer peripheral surface of the pressing lubricant supply member 50 and the tightening margin can be changed. Specifically, as the accessory 70 mounted on the housing 40A, the accessory 70 with the standard tightening margin, the accessory 70A with a tightening margin smaller than the standard, and the accessory 70B with a tightening margin larger than the standard can be arbitrarily selected. In addition, as the accessory 70, the accessory 70C can also be selected. The accessory 70C cuts out a part of the pressing part 71, and when it is installed near the curved part of the outer peripheral wall 41 of the outer shell 40A, it prevents a part of the pressing part 71 from interfering with the side of the outer peripheral wall 41.

Furthermore, as the accessory 70, an accessory having a curvature R of the pressing portion 71 larger than that of the second pressing portion 45 described above and an accessory having a curvature R smaller than that can be arbitrarily selected according to the purpose. According to this configuration, for example, by installing the accessory 70 having a large curvature on the housing 40A, the lubricant supply member 50 can be prevented from sinking significantly at the contact portion between the accessory 70 and the outer peripheral surface of the lubricant supply member 50. Furthermore, by installing the accessory 70 having a small curvature, the pressing portion 71 can be made to bite into the outer peripheral surface of the lubricant supply member 50, thereby further increasing the tightening margin.

Furthermore, by changing the type and installation position of the accessory 70, the position and tightening margin of the press-lubricant supply member 50 can be adjusted and changed without changing the shape of the outer shell 40A. Therefore, the versatility is improved and the cost can be suppressed to a low level.

(Third embodiment) FIG. 7 is a front view showing a lubricating unit of the third embodiment. In the lubricating unit 33B of this embodiment, there is a housing 40B without a second pressing portion 45, and a lubricant supply member 50B provided with a protrusion corresponding to the second pressing portion 45.

Specifically, the lubricant supply member 50B has arc-shaped second pressing parts 55, 55 formed on the lower sides of both sides thereof, and the second pressing parts 55, 55 protrude in a manner to form a tightening margin T2 to the left and right sides. Since the other parts are the same as the lubricating unit 33 of the above-mentioned embodiment, the same symbols or equivalent symbols are attached to the same parts, and the description is simplified or omitted.

According to this structure, the second pressing portion 55 of the lubricant supply member 50B has both the function of increasing the impregnation amount of the lubricant and the function of a pressing portion for pressing the side of the guide rail 20 when housed in the housing 40B.

In addition, the present invention is not limited to the aforementioned embodiments, and may be appropriately modified and improved.

As described above, the following matters are disclosed in this specification. (1) A linear guide rail, comprising: a guide rail, a slider slidably engaged on the guide rail, and a lubricating unit mounted on the axial end of the slider, and the lubricating unit has: a lubricant supply member impregnated with a lubricant to be supplied to the guide rail; a housing that accommodates the lubricant supply member; and a pressing mechanism that presses the lubricant supply member accommodated in the housing toward the guide rail; a mounting portion mounted on the axial end of the slider is provided on the housing; The aforementioned lubricant supply component comprises: a pair of wing rails, which are arranged on the outer sides of the left and right side surfaces of the aforementioned guide rail; a connecting portion, which connects the upper ends of the aforementioned pair of wing rails extending in the up-down direction; a recess, which is formed in the aforementioned connecting portion; a mounting hole, which is arranged in the aforementioned wing rail, for the aforementioned mounting portion to be inserted; and a protrusion, which can slide along the side track surface of the rail arranged on the side surface of the aforementioned guide rail; The aforementioned pressing mechanism comprises: The first pressing portion, which is arranged on the upper side of the left-right center of the aforementioned outer shell, and is arranged in the aforementioned recess in a manner that allows the aforementioned recess to move in the up-down direction of the aforementioned slider and presses the aforementioned recess toward the left-right outer side of the aforementioned slider; and The second pressing portion is an arc-shaped protrusion that presses the side surface of the lubricant supply member toward the guide rail and inward in the left-right direction, and is arranged on the left-right outer side and lower side of the mounting portion. According to this structure, the pressing force used to press the wing rail portion of the lubricant supply member against the guide rail can be effectively applied to the lubricant supply member that cannot ensure sufficient wall thickness in the wing rail portion.

(2) A linear guide rail as in (1), wherein the second pressing portion is provided as an arc-shaped protrusion integrally formed on the inner wall side of the outer shell. According to this structure, since the second pressing portion can be integrally formed on the side of the outer shell that is continuously used, it can be constructed simply and at low cost.

(3) A linear guide rail as in (1), wherein the second pressing portion is formed as an arc-shaped protrusion integrally formed on the side surface of the lubricant supply member. According to this structure, it is possible to achieve both the effect of increasing the volume of the lubricant supply member to increase the amount of lubricant retained and the effect of pressing the lubricant supply member toward the guide rail side.

(4) A linear guide rail as in (1), wherein the second pressing portion comprises: an accessory including an arc-shaped protrusion, and a disassembly portion for disassembling the accessory from the housing, and a plurality of the disassembly portions are provided along the inner wall of the housing. According to this configuration, the position and tightening margin of the pressing lubricant supply component can be arbitrarily changed by adjusting the type and disassembly position of the accessory, thereby improving versatility.

(5) A linear guide rail as in any one of (1) to (4), wherein the mounting hole is D-shaped with a vertically straight portion provided inside. According to this structure, the wall thickness in the width direction near the mounting portion of the lubricant supply member can be increased as much as possible, so that the pressing force applied to the lubricant supply member by the pressing mechanism can be made more stable.

(6) A linear guide rail as in any one of (1) to (5), wherein a chamfered portion is provided on the axial front end side of the first pressing portion and the second pressing portion. According to this structure, when the lubricant supply member is accommodated in the outer housing, the lubricant supply member can be prevented from being hooked on the front end side of each pressing portion, thereby facilitating the installation of the lubricant supply member to the outer housing.

(7) A linear guide rail as in (6), wherein the chamfered portion has a chamfer width of 0.1 to 1 mm and a chamfer angle of 15 to 45°. According to this structure, the lubricant supply component can be installed smoothly and easily to the outer casing by means of a simple structure.

In the above, various embodiments are described with reference to the drawings, but it should be understood that the present invention is not limited to the above examples. Anyone familiar with the technology can obviously think of various changes or modifications within the scope of the patent application, and it should be understood that they also fall within the technical scope of the present invention. In addition, the constituent elements of the above embodiments can be arbitrarily combined within the scope of the invention.

In addition, the present invention application is based on the Japanese patent application (patent application No. 2023-059007) filed on March 31, 2023, the contents of which are incorporated by reference in the present invention application.

10: Linear guide rail 20: Guide rail 21,22: Rail side surface 23: Both sides 24: Top surface 30: Slider 31: Slider body 32: End cover 33,33B: Lubricating unit 40,40A,40B: Housing 41: Peripheral wall 42: End wall 43: Receiving part 44: First pressing part (pressing mechanism)/pressing part 44a,45a: Chamfered part 45: Second pressing part (pressing mechanism)/pressing part 46: Mounting part 47: Screw insertion hole 48,61,64: Through hole 49: Disassembly section 50,50B: Lubricant supply member 50a: Wing rail section 50b: Connection section 51: Protrusion 52: Protrusion 53: First recess 54: Mounting hole 55: Second pressing section 60: Side sealing member 65: Elastic body 70,70A,70B,70C: Accessories 71: Pressing section 72: Mounting section C3: Chamfering amount T: Wall thickness T1,T2: Tightening margin θ: Chamfering angle

FIG. 1 is a perspective view of the linear guide rail of the present invention. FIG. 2 is a perspective view of the slider shown in FIG. 1. FIG. 3 (A) of FIG. 3 is a front view showing the lubricating unit, and FIG. 3 (B) is a front view showing the pressing force acting on the lubricant supply member. FIG. 4 (A) of FIG. 4 is a front view showing the housing, and FIG. 4 (B) is a cross-sectional view showing the main part of the mounting portion. FIG. 5 is a front view showing the lubricant supply member. FIG. 6 (A) of FIG. 6 is a front view showing the housing and accessories of the second embodiment, and FIG. 6 (B) is a view showing the accessories. FIG. 7 is a front view showing the lubricating unit of the third embodiment.

20:Guide rail

21,22: Track side track surface

23: Both sides

24: Upper surface

33: Lubrication unit

40: Shell

44: 1st pressing part (pressing mechanism)/pressing part

45: Second pressing part (pressing mechanism)/pressing part

46: Installation Department

47: Screw insertion hole

48:Through hole

50: Lubricant supply component

50a: Wing rail

50b: Connection part

51: protrusion

52: protrusion

53: 1st concave part

54: Mounting hole

T: wall thickness

T1, T2: Tightening margin

Claims (7)

A linear guide rail, comprising: a guide rail, a slider slidably engaged on the guide rail, and a lubricating unit mounted on the axial end of the slider, and the lubricating unit has: a lubricant supply member impregnated with lubricant to be supplied to the guide rail; a housing that accommodates the lubricant supply member; and a pressing mechanism that presses the lubricant supply member accommodated in the housing toward the guide rail; a mounting portion mounted on the axial end of the slider is provided on the housing; The aforementioned lubricant supply component comprises: a pair of wing rails, which are arranged on the outer sides of the left and right side surfaces of the aforementioned guide rail; a connecting portion, which connects the upper ends of the aforementioned pair of wing rails extending in the up-down direction; a recess, which is formed in the aforementioned connecting portion; a mounting hole, which is arranged in the aforementioned wing rail, for the aforementioned mounting portion to be inserted; and a protrusion, which can slide along the side track surface of the rail arranged on the side surface of the aforementioned guide rail; The aforementioned pressing mechanism comprises: The first pressing portion, which is arranged on the upper side of the left-right center of the aforementioned outer shell, and is arranged in the aforementioned recess in a manner that allows the aforementioned recess to move in the up-down direction of the aforementioned slider and presses the aforementioned recess toward the left-right outer side of the aforementioned slider; and The second pressing portion is an arc-shaped protrusion that presses the side surface of the lubricant supply component toward the guide rail and inward in the left-right direction, and is arranged on the left-right outer side and lower side of the mounting portion. As in the linear guide rail of claim 1, the second pressing portion is configured as an arc-shaped protrusion integrally formed on the inner wall side of the outer shell. As in the linear guide rail of claim 1, the second pressing portion is configured as an arc-shaped protrusion integrally formed on the side surface of the lubricant supply component. As in claim 1, the second pressing portion comprises: an accessory including an arc-shaped protrusion, and a disassembly portion for disassembling the accessory from the outer shell, and a plurality of the disassembly portions are arranged along the inner wall of the outer shell. As in claim 1, the linear guide rail, wherein the aforementioned mounting hole is configured to be a D-shape with a straight line portion in the up and down directions provided on the inner side. A linear guide rail as claimed in any one of claims 1 to 5, wherein a chamfered portion is provided on the axial front end side of the first pressing portion and the second pressing portion. As in claim 6, the linear guide rail, wherein the chamfer width of the chamfered portion is set to 0.1 to 1 mm, and the chamfer angle is set to 15 to 45°.