JPS588983Y2 - Conveyor guide - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of a guide for a conveyor used in injection molding machines, industrial robots, other machine tools, etc., and used as a means of conveying various equipment tools, jigs, and other workpieces. .

Generally, this type of conveyor guide has a straight rail that can be fixed to a base or the like as appropriate, and a pedestal that can run freely on the rail, and a roller or ball that rolls into contact with the sliding surface of the rail on the pedestal. bearings are installed.

Due to their structure, most of these railings are arranged so as to surround the top of the rail.

In such conventional carrier guides, the sliding surfaces of the bearings and the rails are in line or point contact, so the load is applied locally and the load must be small.

In addition, due to its structure, the horizontal load resistance and upward load resistance are smaller than the downward load resistance, resulting in poor versatility.

In addition, since the sliding surface of the rail is located at the upper part, foreign matter such as dust and welding spatter often adheres to the sliding surface (this promotes wear of the sliding surface due to foreign matter).

In consideration of the above-mentioned points, the present invention has been developed to withstand heavy loads, to be able to withstand vertical and horizontal loads equally, and to reduce the adhesion of foreign matter such as dust and welding spatter to sliding surfaces. The present invention provides a guide for a conveyor machine that reduces the acceleration of wear on the sliding surface due to foreign matter.The gist of the guide is to support a movable frame on linearly arranged rails, and to place various objects on the frame. In a guide for a transport machine on which conveyed objects such as tools can be freely placed, the rail is provided with guide grooves on both sides thereof having a cross section of a square shape or a semicircular shape and arranged vertically symmetrically; is provided with plate liners having cross-sectional shapes corresponding to the grooves at the bottom thereof, arranged opposite to each other, each of the plate liners is fitted into both grooves to sandwich the guide rail, and the plate liner and the guide groove The present invention relates to a guide for a conveyor, characterized in that a solid lubricant is embedded in one of the contact surfaces with the groove.

Next, an example of implementation of the present invention will be described with reference to the drawings.

1 First, the first embodiment will be explained with reference to FIGS. 1 to 4.
In the figure, 1 is a rail, and 2 is a movable frame.

This rail 1 has V-shaped grooves 3, 3 with substantially right-angled cross sections and symmetrical top and bottom sides formed on both sides, and is fixed to the top surface of a base 5 by passing a bolt 4 through it from the top surface.

A stand 6 for conveyed objects such as devices or tools is fixed to the upper surface of the movable frame 2 with bolts 7 as appropriate.

A pair of frames 8, 8 facing each other is protruded from the bottom of the movable frame 2, and a rail 2 is provided between the frames 8.
is inserted.

Plate liners 9 are provided on the inner surfaces of the frames 8 and 8, respectively.
, 9 are fixed with bolts 10 in opposing positions.

These plate liners 9, 9 have rails 1 on their opposite sides.
It is formed into a chevron shape with a cross section of approximately 90° so as to fit into the inner surface of the concave grooves 3, 3, and solid lubricant 11°11... is exposed on the sliding surface. It is buried.

Note that this solid lubricant 11 may be buried in the sliding surfaces within the grooves 3, 3 of the rail 1.

In the figure, 12 is a dustproof plate fixed between the end faces of both frames 8,8.

Next, a second embodiment will be explained with reference to FIG.

Similar to the first embodiment, this embodiment has a rail 1 fixed to the upper surface of a base 5 with bolts 4, a pair of frames 8, 8 protruding from the lower surface, and movement in which the rail 1 is fitted between the frames. I am using pedestal 2.

Grooves 3a each having a semicircular cross section are formed on the side surface of the rail 1.

Semi-cylindrical plate liners 9a, 9a that correspond to and fit into the frames 8, 8 are provided facing each other inside the frames 8, 8, and are fixed with bolts 10.

And the plate liner 9a. Solid lubricant 11 is embedded in the sliding surface of 9a as described above.

In addition, when applying the first and second embodiments to a form in which only both ends of the rail are fixed to the base, Figs. 6 and 7
Rail 1bt1 with vertically symmetrical cross-sectional shape as shown in the figure
c, and the movable stand 2 has a cylindrical frame 8 at its bottom.
b, 8c are integrally molded, and its cylindrical frame 8b
, Bc inner rail 1b.

1c, and fix the chevron-shaped or semicircular plate liner 9 or 9a fixed to the inner surface of the frame, and each concave groove 3,
3a to support the movable frame 2.

In addition, in each of the above-mentioned embodiments, each liner is bolted to the movable frame 2 so that it can be replaced, but in each embodiment, the liner 9 is integrally formed on the inner surface of the frame 8, as shown in FIG. It is okay to do so.

The guide for a conveyor according to the present invention is constructed as described above, and has a concave groove in the side surface of the rail that has a cross section of about 900 cm or a semicircular shape and is vertically symmetrical. By fitting a plate liner with a cross-sectional shape corresponding to the cross-sectional shape and slidably supporting the movable frame, it can withstand the same degree of downward load and upward load on the movable frame. Equivalent stress can be obtained for horizontal loads.

Furthermore, compared to those using conventional bearings, there is no local concentration of stress and it is able to withstand large loads, and at the same time, there is no localized wear and rattling is less likely to occur. be.

In addition, since the sliding surfaces are symmetrically inclined, the load component always acts so that the center of the pedestal is aligned with the center of the rail, and even when wear occurs, side-to-side wobbling occurs. It has an automatic alignment function.

Furthermore, the liner can be easily replaced, and even when wear occurs, it is possible to easily correct looseness.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view of the first embodiment, FIG. 2 is an enlarged side view of the same part, FIG. 3 is a sectional view taken along the line ■-■ in FIG. 2, and FIG. The figure is an exploded perspective view of the main parts, FIG. 5 is a longitudinal sectional view of the second embodiment, FIG. 6 is a longitudinal sectional view of the third embodiment, FIG. 7 is a longitudinal sectional view of the fourth embodiment, and The figure is a longitudinal sectional view of the fifth embodiment. Llb, Ia...Rail, 2...Moveable frame, 3゜3
a... Concave groove, 5... Base, 6... Table for transported objects,
8゜8 b, 8 c...frame, 9,9a...
Plate liner 11...Solid lubricant.

Claims (1)

[Scope of utility model registration request] In a guide for a conveyor machine, in which a movable pedestal is supported by a linearly arranged rail, and conveyed items such as various tools can be freely placed on the pedestal, the rail has a cross section of a square shape or a semicircular shape on both sides thereof. Equipped with a guide groove with a symmetrical top and bottom arrangement,
The movable pedestal is provided with plate liners having a cross-sectional shape corresponding to the groove at the bottom thereof and arranged opposite to each other,
A conveying machine characterized in that each of the plate liners is fitted into both of the grooves to sandwich a guide rail, and a solid lubricant is embedded in one of the contact surfaces between the plate liner and the guide groove. guide.