JP3195639U - Block that facilitates filling of rolling elements - Google Patents

Abstract

In a linear guideway, it is possible to fill rolling elements in the same direction, and it is not necessary to place the filled rolling elements in a hypothetical position, and a block that facilitates filling of the rolling elements is provided. A pedestal 21; a slide groove provided on a bottom surface of the pedestal; and an annular opening facing outwards at portions corresponding to both sides of the slide groove on the bottom surface of the pedestal. Two rolling spaces provided respectively, and a pedestal part 20 in which a part of each rolling space communicates adjacent to the slide groove, and is fixed to the pedestal, and the other part of each rolling space And a bottom portion 30 for sealing the opening. [Selection] Figure 2

Description

The present invention relates to a linear guideway, and more particularly to a block that facilitates filling of rolling elements.

  In the conventional linear guideway, the blocks can smoothly slide on the rails by the rolling elements provided between the blocks and the rails. As a result, friction when sliding between the block and the rail is greatly reduced, the slide of the block becomes smooth, the life of the linear guideway is prolonged, and the stability of the slide is increased. In order to smoothly roll the rolling element between the block and the rail, the conventional linear guideway is provided with a groove having an arc-shaped cross section in the block and the rail, respectively, so that the rolling element can be accommodated. A dynamic space is formed, and a circulation passage for circulating the rolling elements is provided inside the block. Thereby, the rolling element can circulate and roll through the rolling space and the circulation passage, and the block can slide relative to the rail in a low friction state. .

The above prior art is often used for a linear guideway. However, since the circulation passage has a hole shape and the rolling space has a groove shape, the opening of the circulation passage and the rolling space is not formed. The facing directions are different from each other. As described above, in the work of filling the rolling elements, the operator needs to fill the rolling elements in different steps according to the openings in different spaces, and thus the step of filling the rolling elements is shifted. Occasionally, rolling elements that are filled and not localized tend to fall. This makes it difficult to assemble the conventional linear guideway.

The main purpose of the present invention is that the opening of the housing space for accommodating the rolling elements of the block faces in the same direction, and it is possible to fill the rolling elements in the same direction, change the direction and fill the rolling elements Compared to the conventional method, it is necessary to provide a block that does not require the filled rolling elements to be presumed and can be easily filled.

According to the block of the present invention, the pedestal, the slide groove provided on the bottom surface of the pedestal, and an annular shape, the openings facing outward correspond to both sides of the slide groove on the bottom surface of the pedestal. Two rolling spaces respectively provided in the part, and a pedestal part in which a part of each rolling space communicates adjacent to the slide groove;
A bottom that is fixed to the pedestal and seals the opening of the other part of each rolling space;
It is characterized by including.

According to the block of the present invention, the pedestal further includes a first pedestal body having a block shape and a second pedestal body, and a part of each rolling space communicating with the slide groove and the slide groove is the first pedestal body. It is located on the bottom surface of the pedestal body, the second pedestal body is fitted with the first pedestal body, and the other part of each rolling space is located on the bottom surface of the second pedestal body. .

According to the block of the present invention, the second pedestal body has a hollow frame shape, and the first pedestal body is fitted to the second pedestal body so as to be positioned in the central space of the second pedestal body. It is characterized by.

According to the block of the present invention, the first pedestal body is made of metal, and the second pedestal body is made of non-metal.

According to the block of the present invention, the bottom portion has two bottom plates and two connecting plates, and the two bottom plates are positioned on both sides of the slide groove so that the longitudinal directions thereof are parallel to each other, and the rolling space. The other opening is sealed, and the two connecting plates are connected to both longitudinal ends of the two bottom plates, respectively, and one side thereof is fixed to the pedestal.

According to the block of the present invention, a part communicating with the slide groove in each rolling space is a groove provided on each of the groove walls on both sides of the slide groove.

According to the block of the present invention, the other part not adjacent to the slide groove of each rolling space is a groove provided on the bottom surface of the pedestal, respectively.

According to the block of the present invention, the bottom portion further includes two butting grooves, and the two butting grooves are opposed to the other portions not adjacent to the slide grooves of the respective rolling spaces.

According to the block of the present invention, the pedestal part further includes two holders having a wire shape, and the two holders are respectively fixed to the pedestal part and communicated with the slide grooves of the respective rolling spaces. It extends along the opening of the groove of the part.

According to the block of the present invention, each holder is a flat wire.

According to the block of the present invention, the opening of the housing space for accommodating the rolling elements of the block is oriented in the same direction, and the rolling elements can be filled in the same direction, and the rolling elements are filled by changing the direction. Compared to the conventional method, it is not necessary to presume the filled rolling elements, and the rolling elements can be easily filled.

It is a perspective view which shows the combined state of one Example of this invention. It is a disassembled perspective view which shows one Example of this invention. It is a perspective view which shows a part of one Example of this invention. It is a perspective view which shows the member of the bottom part of one Example of this invention. FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. FIG. 6 is a cross-sectional view taken along line 6-6 of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Please refer to FIG. 1 to FIG. The block 10 according to an embodiment of the present invention includes a pedestal 20, a bottom 30, and a number of rolling elements 40.

The pedestal portion 20 is provided on a substantially cuboid pedestal 21 and a bottom surface of the pedestal 21, and has a slide groove 22 extending along the longitudinal direction of the pedestal 21 and an annular opening that faces outward. Are provided with two rolling spaces 23 respectively provided at portions corresponding to both sides of the slide groove 22 on the bottom surface of the pedestal 21. The rolling space 23 accommodates each rolling element 40, and a part thereof communicates adjacent to the slide groove 22.

Further, a part 231 communicating with the slide groove 22 of each rolling space 23 is a groove provided on each of the groove walls on both sides of the slide groove 22. The direction in which the opening of the groove faces is substantially perpendicular to the direction in which the opening of the slide groove 22 faces. Other portions 232 not adjacent to the slide groove 22 of each rolling space 23 are grooves provided on the bottom surface of the base 21. The direction in which the opening of the groove faces is substantially the same as the direction in which the opening of the slide groove 22 faces.

The bottom portion 30 is fixed to the base 21 and seals the opening of the other portion 232 of each rolling space 23. Thereby, between the bottom part 30 and the base part 20, the space which can roll each rolling element 40 is formed.

The technical feature of the above configuration is that each rolling space 23 formed by the groove has an opening facing in a different direction, but the opening of each rolling space 23 is located on the bottom side of the pedestal 21, When assembling, the openings of the rolling spaces 23 are concentrated on the same side only by reversing the pedestal 21. Thereby, it is possible to easily fill the rolling space 23 with the required number of rolling elements 40 in the same filling step. And if the bottom part 30 is couple | bonded with the base part 20, all the rolling elements 40 will be localized and cannot escape. In one embodiment of the present invention, since it is not necessary to presuppose the filled rolling elements 40 as compared with the conventional method, filling of the rolling elements 40 is facilitated, and the number of assembling operations is greatly reduced. It is possible.

Moreover, in order to achieve the objective of weight reduction and cost reduction, the base 21 may be comprised from the components produced with a different material. That is, the pedestal 21 further includes a first pedestal body 211 that has a block shape and is made of metal, and a second pedestal body 212 that has a hollow frame shape and is made of nonmetal. The slide groove 22 and a part 231 of each rolling space 23 adjacent to the slide groove 22 are located on the bottom surface of the first pedestal body 211. The second pedestal body 212 is fitted with the first pedestal body 211. The other part 232 of each rolling space 23 is located on the bottom surface of the second pedestal body 212.

When the block slides on the rail, only the rolling element 40 in the part 231 of each rolling space 23 receives a force. Therefore, in the embodiment of the present invention, the first pedestal body 211 is a metal having higher strength. It is made with. Thereby, it is possible for the block to slide on the rail stably. Note that the second pedestal body 212 for circulating the rolling elements is made of a non-metal because strength is not particularly required. In this way, production costs can be reduced.

Moreover, in order to maintain the position of the rolling element 40 in the part 231 of each rolling space 23, the pedestal part 20 further includes a holder 24 having a substantially U-shape. When the holder 24 extends along the opening of the groove of the part 231 of the rolling space, the rolling element 40 is regulated and held between each holder 24 and the part 231 of the rolling space. Specifically, each holder 24 is a flat wire, and the portions parallel to each other at both ends thereof are sandwiched between the pedestal 21 and the bottom portion 30 and are localized. Each holder 24 further improves the orientation of the rolling element 40.

On the other hand, since the other part 232 of each rolling space 23 is a passage for circulating the rolling elements 40, the shape thereof can smoothly rotate the rolling elements and is preferably positioned appropriately. In other words, these passages may be formed only in the second pedestal body 212 or the bottom 30, or a part thereof is formed in the second pedestal body 212 and the other part is formed in the bottom 30 as in this embodiment. It may be formed.

The bottom portion 30 further includes two bottom plates 31, two connecting plates 32, and two butt grooves 33. The two bottom plates 31 are located on both sides of the slide groove 22 so that their longitudinal directions are parallel to each other, and seal the opening of the other part 232 of the rolling space. The two connecting plates 32 respectively connect the two ends of the two bottom plates 31 in the longitudinal direction, and one side thereof is fixed to the pedestal 21. The two butting grooves 33 are respectively provided in each bottom plate 31 and are opposed to the other portion 232 of each rolling space. Thereby, the channel | path for circulating each rolling element 40 is formed.

On the other hand, since it is necessary to lubricate each rolling element 40, a conventional seal structure may be provided between the bottom portion 30 and the pedestal portion 20 in order to prevent leakage of the lubricating oil.

  The present invention can be applied to a linear guideway.

10 block 20 pedestal portion 21 pedestal 22 slide groove 23 rolling space 24 holder 30 bottom 31 bottom plate 32 connecting plate 33 butt groove 40 rolling element 211 first pedestal body 212 second pedestal body 231 part 232 of rolling space The other part of space

Claims (10)

A pedestal, a slide groove provided on the bottom surface of the pedestal, and a ring-shaped opening facing the outside are provided at portions corresponding to both sides of the slide groove on the bottom surface of the pedestal. Two rolling spaces, and a pedestal portion in which a part of each rolling space communicates adjacent to the slide groove;
A bottom that is fixed to the pedestal and seals the opening of the other part of each rolling space;
A block characterized by containing.   The pedestal further includes a first pedestal body having a block shape and a second pedestal body, and the rolling groove that communicates with the slide groove and the slide groove includes a part of the first pedestal body. The second pedestal body is fitted to the first pedestal body, and the other part of each rolling space is located on the bottom side surface of the second pedestal body. The block according to claim 1.   The second pedestal body has a hollow frame shape, and the first pedestal body is fitted to the second pedestal body so as to be positioned in a central space of the second pedestal body. The block according to claim 2.   The block according to claim 3, wherein the first pedestal body is made of metal and the second pedestal body is made of non-metal.   The bottom portion includes two bottom plates and two connecting plates, and the two bottom plates are positioned on both sides of the slide groove so that their longitudinal directions are parallel to each other, and the other portions of the rolling space. 2. The opening according to claim 1, wherein the two connecting plates are connected to both ends in the longitudinal direction of the two bottom plates, respectively, and one side thereof is fixed to the pedestal. block.   2. The block according to claim 1, wherein a part of each rolling space that communicates with the slide groove is a groove provided in a groove wall on each side of the slide groove.   7. The block according to claim 1, wherein the other part of each rolling space that is not adjacent to the slide groove is a groove provided on a bottom surface of the pedestal.   The bottom portion further includes two butting grooves, and the two butting grooves abut against the other portions of the rolling spaces that are not adjacent to the slide grooves. Listed block.   The pedestal part further includes two holders having a wire shape, and the two holders are respectively fixed to the pedestal part, and are part of the sliding spaces communicating with the slide grooves of the respective rolling spaces. 7. A block according to claim 6, characterized in that it extends along the opening of the groove.   The block according to claim 9, wherein each holder is a flat wire.