KR200468452Y1 - Linear sliding block - Google Patents

Abstract

The linear sliding block includes a body member having a plurality of load supporting tracks therein, two end block portions at two ends of the body member, a no load track, a first oil passage and an end block portion respectively disposed in the load supporting tracks. A base block comprising a cover member positioned on and forming a second oil passage in communication with the first oil passage; Two circulation guide blocks each forming a complete semicircular circulation track and track skeleton connected to a load bearing track and a no-load track; And rolling balls lubricating the linear sliding rails that roll in the load bearing tracks, the unloaded tracks and the complete semicircular circulation tracks to transport the linear sliding blocks.

Description

Linear Sliding Blocks {LINEAR SLIDING BLOCK}

The present invention relates to a linear guide path technology, and more particularly to a linear sliding block for transporting and moving a moving object along a linear sliding rail.

Linear sliding blocks of a linear guide path are known to comprise a base block, two circular guide blocks, and a plurality of rolling balls. The base block includes a sliding groove fitted to a linear sliding rail, a plurality of load bearing tracks symmetrically disposed on two opposite sides of the sliding groove, and a plurality of unloaded tracks extending through opposite front and rear ends. do. The circulating guide block is mounted at opposite front and rear ends of the base block, respectively, in such a way that the load bearing track and the unloaded track form a closed loop. The rolling balls are arranged in a line in the closed loop. In order to avoid friction of the rolling balls, an oil groove is formed in the circulation guide block to receive the lubricating oil. If the rolling ball moves through the circulation guide block, the rolling ball will be lubricated by lubricating oil.

The rolling ball can only be lubricated when the rolling ball moves through the oil groove of the circulation guide block, ie the rolling ball is not lubricated further when rolling in the load bearing track. Thus, rolling balls may not be sufficiently lubricated during operation of the linear guide path. Moreover, this conventional design does not have a means for discharging chips. During the sliding movement of the linear sliding block on the linear sliding rails in the workplace, the surrounding dust, debris and other foreign objects penetrate into the gap between the rolling balls in the linear sliding block, causing frictional damage between the rolling ball and the load bearing track, or It can cause vibration or jam of the linear sliding block.

Secondary injection molding techniques may be employed to form dust strips on the circulating guide block for protection against dust and other foreign objects. However, the formation of dust strips on the circulating guide block requires high precision molds and tight molding condition control, which complicates the manufacture of linear sliding blocks and increases their manufacturing costs.

1. Taiwan Utility Model Publication No. M401715 2. Taiwan Patent Publication No. I325928 3. Taiwan Patent Publication No. I298371

The present invention has been accomplished in consideration of the above situation. The present invention provides a plurality of first oil passages, each disposed on each load bearing track at two opposing sides of the body member of the base block, and on the end block portion of the cover member of the base block, to reduce wear of the rolling balls. A linear sliding block for mounting on a linear sliding rail comprising a second oil passage in communication with the first oil passage for transporting lubricating oil for lubricating the mating linear sliding rail with a rolling ball to prevent.

Furthermore, the present invention provides two circular guide blocks arranged at opposite front and rear ends of the base block and specially designed to eliminate stress concentration, and linear sliding blocks on linear sliding rails to prevent foreign objects from entering the linear sliding blocks. Provided is a linear sliding block comprising two stop flanges each extending from a circulating guide block, which fits on a linear sliding rail to enhance the level of stability of the sliding movement of the circular guide rail.

1 is an exploded view of a linear sliding block and a linear sliding rail constructed according to the present invention.
2 is an exploded view of a linear sliding block according to the present invention.
3 is a perspective view of a body member of a linear sliding block according to the present invention.
4 is a schematic end view of the body member of a linear sliding block according to the present invention;
5 is a perspective view of a body member of a linear sliding block according to the present invention.
Figure 6 is a cutaway view of the base block of the linear sliding block according to the present invention.
7 is a cross-sectional view of the base block of the linear sliding block according to the present invention.
8 is a schematic diagram (I) of the present invention showing the mounting pegs of the base block respectively attached to the mounting holes of the circulation guide block;
Fig. 9 is a schematic view II of the present invention showing the mounting pegs of the base blocks respectively attached to the mounting holes of the circulation guide block.
10 is an exploded view of one circular guide block of the linear sliding block according to the present invention;
11 corresponds to FIG. 10 when viewed from a different angle.
12 is an exploded view of an outer block member of one circular guide block of a linear sliding block according to the present invention;
13 corresponds to FIG. 12 when viewed from different angles.
14 is a schematic view showing an operating state of a linear sliding block on a linear sliding rail according to the present invention.

1 and 2, the linear sliding block 10 according to the present invention is mounted on the linear sliding rail 20 to form a linear guide path. The linear sliding block 10 comprises a base block 1, two circular guide blocks 2 and a plurality of rolling balls 3.

Referring again to FIG. 2 with reference to FIGS. 3 to 5, the base block 1 includes a body member 11 and a cover member 12 integrally formed with and covered by a portion of the body member 11. Include. As shown in FIG. 5, the body member 11 includes an upper wall 111 exposed to the outside of the cover member 12, a lower wall 112 disposed to face the upper wall 111, and Sliding grooves 113 located on the lower wall 112 and extending through opposing front and rear ends of the body member 11, and bidirectionally and symmetrically formed in the sliding grooves 113 at two opposing sides. And a plurality of load bearing tracks 114 extending through opposing front and rear ends of the body member 11.

Referring again to FIG. 4 with reference to FIGS. 6 and 7, the cover member 12 is made of plastic or a suitable moldable material and molded on the body member 11, with the opposing front and Two end block portions 121 respectively covered on the rear end portion, a plurality of connecting portions 122 connected in both directions between the end block portions 121, and a plurality of load portions arranged in the load supporting track 114, respectively. A first oil passage 123 and a plurality of second oil passages 124 respectively positioned on the end block portion 121 and facing towards each circulation guide block 2. Moreover, opposite ends of the first oil passage 123 extend through the end block portion 121, respectively, and communicate with the second oil passage 124. Thus, lubricating oil filled into the second oil passage 124 may flow into the first oil passage 123.

Referring again to FIGS. 3, 4, and 6, the cover member 12 further includes a plurality of unloaded tracks 125 connected between the two end block portions 121. Thus, the unloaded track 125 maintains communication with the load bearing track 114 via the circulation guide block 2. Preferably, the grooves 115 are each formed on two opposite sides of the body member 11, and the unloaded tracks 125 are each formed in the grooves 115 in the form of through holes.

Alternatively, the through hole 116 may be formed in the body member 11 and the unloaded track 125 may be selectively formed in the through hole 116. After the rolling balls 3 are mounted in the load supporting tracks 114 and the no-load tracks 125, the rolling balls 3 pass through the circulation guide block 2 and the load supporting tracks 114 and the no-loading tracks 125. You can cycle within).

Referring again to FIGS. 14 and 6, the insertion hole 117 may be formed in communication with the sliding groove 113 on two opposite sides of the body member 11. After the cover member 12 is molded on the body member 11, a fixing peg 129 is formed in the insertion hole 117 to improve the engagement tightening between the body member 11 and the cover member 12.

Referring again to FIG. 1 with reference to FIGS. 8 and 9, the two circulation guide blocks 2 are mounted at opposite front and rear ends of the base block 1, respectively, so as to support the load bearing tracks of the base block 1. 114 maintains communication with the unloaded track 125.

Referring back to FIGS. 1, 8 and 9 with reference to FIGS. 10 and 11, each circulation guide block 2 comprises an inner block member 21 and an outer block member 22. The inner block member 21 is formed on the outer surface of the inner block member 21 facing toward the outer block member 22 and has a circulation groove having two distal ends connected to the opposite inner surface of the inner block member 21. A linear sliding rail and a plurality of connecting lugs 213 respectively protruding from the inner surface of the inner block member 21 around the first half segment 211 and the two distal ends of the circulation groove first half segment 211. And a first rim 212 disposed corresponding to one side of the 20. The outer block member 22 includes a circulation groove second half segment 221 that mates with the circulation groove first half segment 211 and a second rim 222 that fits on the same side of the linear sliding rail 20. Include. When the inner block member 21 and the outer block member 22 are assembled together, the circulation groove first half segment 211 of the inner block member 21 and the circulation groove second half segment of the outer block member 22 ( 221 are mated together to form a complete semicircular circulation track 23, wherein the semicircular circulation track 23 has a rolling ball 3 with a semicircular circulation track 23, a load bearing track 114 and a no-load track 125. Is connected to the load bearing track 114 and the unloading track 125 by a connecting lug 213 which guides the rolling ball 3 to circulate therethrough. Thus, the rolling balls 3 can move smoothly during cycling without noise due to component gaps. Furthermore, the first rim 212 of the inner block member 21 and the second rim 222 of the outer block member 22 are joined together to form a track skeleton 24 that mates with the linear sliding rail 20. do.

Furthermore, as shown in FIGS. 12 and 13, the outer block member 22 is formed of a rigid plastic component 223 and a flexible plastic component 224, ie, rigid, using a double injection molding technique. The plastic component 223 is first injection molded and then the soft plastic component 224 is second injection molded onto the rigid plastic component 223. Furthermore, during the forming process for forming the soft plastic component 224 on the rigid plastic component 223, a stop flange 25 is provided for the second rim to stop against the linear sliding rail 20. 222 is formed around. The stop flange 25 is disposed corresponding to the flexible frame strip of the linear sliding rail 20.

Referring again to FIGS. 14 and 2, the rolling balls 3 are in the load bearing tracks 114 of the base block 1 and in the semicircular circulation tracks 23 of the unloading tracks 125 and the circulation guide block 2. Are accepted. When rolling into the load bearing track 114, the rolling balls 3 contact the lubricating oil flowing in the first oil passage 123 adjacent to the first oil passage 123 and draw the thus received lubricating oil. It is applied to the linear sliding rail 20 to enable the linear sliding block 10 to move smoothly along the linear sliding rail 20.

Referring again to FIGS. 3 and 4, the cover member 12 further includes at least one third oil passage 126 disposed to communicate with the second oil passage 124 in the end block portion 121. . Thus, lubricating oil may flow into the two end block portions 121 through at least one third oil passage 126 between the second oil passages 124.

Referring to FIG. 8, the cover member 12 of the base block 1 includes a plurality of mounting pegs 127 fastened to the circulation guide block 2, respectively. Each of the two circulation guide blocks 2 includes a plurality of mounting holes 26 for receiving the mounting pegs 127 of the base block 1. By means of a thermal compression technique, the mounting pegs 127 of the base block 1 can be attached to the mounting holes 26 of the circulation guide block 2 (refer to the arrowheads in FIG. 8) respectively so that the circulation guide block 2 Can be secured to the opposite front and rear ends of the base block 1. Moreover, as shown in FIGS. 2 and 9, each mounting peg 127 forms a fastening hole, for example a screw hole 128, in it, and a fastening member such as a tie screw 27. Are respectively mounted in the mounting holes 26 of the circulation guide block 2 and screwed into the screw holes 128 of the mounting pegs 127 to attach the circulation guide block 2 to the base block 1.

Referring again to FIG. 2, each circulation guide block 2 further includes an oil filling hole 28 arranged to communicate with the second oil passage 124 such that the prepared lubricating oil is supplied to the second oil passage 124. ) And to fill into the first oil passage 123. Furthermore, the rigid plastic component 223 of the outer block member 22 is a plurality of couplings formed between a plurality of ribs spaced at equal intervals and each of two adjacent ribs for the coupling of the soft plastic component 224. Injection molded to provide a groove. The ribbed structure of the rigid plastic component 223 allows the stresses generated during the injection molding process of molding the soft plastic component 224 onto the rigid plastic component 223 to be evenly distributed.

The molding technique allows the first oil passage 123 and the second oil passage 124 to be formed directly on the cover member 12 of the linear sliding block, thereby simplifying the manufacturing process and reducing the manufacturing cost. have. Moreover, through the first oil passage 123 and the second oil passage 124, the applied lubricating oil can flow into the load bearing track 114 on which the rolling balls 3 roll in line, thus providing optimum lubrication. Can be obtained. Moreover, the first oil passage 123 also provides the ability to release debris to allow external objects that accidentally enter the load bearing track 114 to be moved into the first oil passage 123 by the rolling balls 3. do. Moreover, by fabricating a rigid plastic component 223 having a rib forming structure and employing a double injection molding technique to form the flexible plastic component 224 on the rigid plastic component 223, the present invention provides a circulating guide. Molding stress is effectively removed during the manufacture of the block 2. Moreover, a stop flange 25 is formed around the second rim 222 during the secondary forming process to form the outer block member 22 of each circulation guide block 2. After the linear sliding block 10 is installed in the linear sliding rail 20, the stop flange 25 of the circulating guide block 2 is kept in close contact with the linear sliding rail 20, so that the linear sliding block 10 is closed. Protect against external objects.

Although specific embodiments of the present invention have been described in detail for purposes of illustration, various modifications and improvements can be made without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the utility model registration claims attached.

1: base block 2: circular guide block
3: cloud ball 10: linear sliding block
11: body member 12: cover member
20: linear sliding rail 23: semicircular circulation track
24: track skeleton 25: stop flange
111: upper wall 112: lower wall
113: sliding groove 114: load bearing track
121: end block portion 122: connecting portion
123: first oil passage 124: second oil passage
125: unloaded track 211: circular groove first half segment
212: first rim 221: circular groove second half segment
222: second rim 223: rigid plastic component
224: soft plastic components

Claims (11)

A linear sliding block for mounting on a linear sliding rail to form a linear guide path,
Base block;
Two circular guide blocks; And
Includes a plurality of cloud balls,
The base block includes a body member and a cover member formed integrally with and covered by a portion of the body member, wherein the body member is disposed opposite the upper wall and the upper wall exposed to the outside of the cover member. A sliding groove located on a wall and the lower wall and extending through opposing front and rear ends of the body member, and bidirectionally and symmetrically formed in the sliding groove at two opposing sides and opposing front and A plurality of load bearing tracks extending through the rear end, wherein the cover member is bidirectionally connected between the two end block portions and the end block portions respectively covered on opposing front and rear ends of the body member. A plurality of first oil passages and stages disposed respectively in the connecting portion of the load bearing track and Respectively, and the first oil passage comprises a plurality of second oil passage, each positioned on the block portion whose opposite ends extending respectively through the end block portion in communication with the second oil passage,
The two circulation guide blocks are respectively mounted at opposing front and rear ends of the base block to keep the load supporting tracks in communication with the unloaded tracks, the two circulation guide blocks each having an inner block member and an outer block member. Wherein the inner block member includes a first groove half segment facing the toward the associated outer block member and a first rim disposed corresponding to one side of the linear sliding rail, wherein the outer block member includes the circulation A circulation groove second half segment mating with a groove first half segment and a second rim fitted to the linear sliding rail, wherein the circulation groove first half segment of the inner block member and the circulation of the outer block member The groove second half segment is mated together to form a complete semicircular circulation track and wherein the inner block member The first rim and the second rim of the outer block member are joined together to form a track skeleton that mates with the linear sliding rail, wherein the outer block member is molded onto the rigid plastic component and the rigid plastic component. A flexible plastic component, the flexible plastic component comprising a stop flange disposed about the second rim for a stop relative to the linear sliding rail,
And said plurality of rolling balls are received in a circulation track of said load bearing track and said circulation guide block and adjacent to said first oil passage in said load bearing track and rotatable along said linear sliding rail. 2. The cover member of claim 1, wherein the cover member includes a plurality of unloaded tracks connected between the two end block portions, wherein the unloaded tracks have respective opposite ends of the unloaded tracks of the circulation guide block. A linear sliding block in which communication with the circulation track is maintained respectively. 3. The body member of claim 2, wherein the body member includes a plurality of grooves each formed on two opposing side surfaces of the body member, wherein the unloaded tracks are each formed in the form of through holes in the grooves of the body member. Sliding block. The linear sliding block of claim 2, wherein the body member includes a plurality of through holes, and the unloaded track is formed in the through hole of the body member. 2. The body member of claim 1 wherein the body member includes a plurality of insertion holes located on two opposing side surfaces of the body member, wherein the cover member includes a plurality of fixing pegs respectively fastened to the insertion holes of the body member. Linear sliding block comprising a. The linear sliding block of claim 1, wherein the cover member further comprises at least one third oil passage disposed in communication with the second oil passage of the end block portion. The linear sliding block of claim 1, wherein the cover member further comprises a plurality of mounting pegs each fastened to the circulation guide block. 8. The linear sliding block of claim 7, wherein each of the mounting pegs forms a fastening hole therein. 9. The linear sliding block of claim 8, wherein the two circulation guide blocks each comprise a plurality of mounting holes for receiving the mounting pegs of the cover member of the base block. The linear sliding block of claim 1, wherein the two circulation guide blocks each include an oil filling hole disposed in communication with the second oil passage. 2. The inner block member according to claim 1, wherein the inner block member projects a plurality of connecting lugs each protruding from its inner surface opposite the circulation groove first half segment of the inner block member and connected to the complete semicircular circulation track of each circulation guide block. Including linear sliding blocks.

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