JPH066801B2 - Traveling rails for conveyors using linear motors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is capable of leveling a rail surface in a transfer device using a linear motor, without processing a bolt hole for connection on a rail pedestal. The present invention also relates to a rail that can be easily connected to the rail.

[Conventional technology and its problems]

A conventional conveying device using a linear motor is shown in FIG. In the figure, L is a base, which is fixed on the floor. On the base L, a traveling rail R having a required cross sectional shape is arranged.

The carriage C is placed on the traveling rail R via the traveling wheels W so as to travel freely, and the linear step motor 1 is mounted on the base L.
A secondary step LM1 and a linear stepping motor secondary side LM2 are arranged on the side of the carriage, and the carriage is made to travel on the traveling rail by utilizing the thrust of the linear stepper motor.

The traveling rail R has a fixed size and a plurality of required cross-sectional shapes joined together. When this traveling rail is spliced, the joint bolt holes are drilled at the site, so the workability is poor, and it is necessary to level the rail surface at each joint of the traveling rail, which is also inferior in terms of accuracy. It was a thing.

[Means for solving problems]

A dovetail groove is provided on the outer surface of the rail pedestal for attaching the traveling rail to the upper part, and a bolt is screwed between the connecting key to be inserted into this groove and the connecting plate opposite to this key. Connect between the pedestals.

〔Example〕

 Next, the present invention will be described based on embodiments shown in the drawings.

In the figure, reference numeral 1 denotes a base, which is arranged on the floor surface at regular intervals or at arbitrary intervals, and is fixed on the floor surface or simply placed, or fixed by bolts or the like. On the bases 1 and 1, a station rail pedestal 2 or an intermediate rail pedestal 3 is arranged. Therefore, the bases 1, 1 ... Are arranged along the transport direction of the transport vehicle.

The station rail pedestal 2 has a shape in which two intermediate rail pedestals 3 face each other and a base portion 21 thereof is integrated. Therefore, the two rail pedestals 2 and 3 have the same shape above the base portion.

Next, the rail pedestal 2 will be described. This rail cradle 2
Is mounted on the base 1 and is fixed to the base 1 by the bolts 4 and has a plate-like base portion 21, and leg portions 22 projecting upward on both sides of the base portion 21, 22. The two opposing leg pieces 22, 22 are integrally formed with the base portion 21 so as to have a desired strength and withstand load as a rail pedestal by aluminum extrusion or the like, and face each other. However, the distance between the parallel leg pieces 22 and 22 is set in advance according to the size of the carrier truck or the like.

The leg piece 22 has a required load capacity and height, and has a dolly-like groove, that is, a dovetail groove 2, on its outer surface in the longitudinal direction thereof.
3, the dovetail groove 23 is opened to the outer surface of the leg piece 22, and a rail fixing piece 24 is provided on the upper part of the leg piece 22 over the entire length of the rail pedestal similar to the dovetail groove. This rail fixing piece 24 is thinner than the thickness of the leg piece 22, and a step is formed in a continuous portion of the leg piece 22 and the rail fixing piece 24, and this step is used as a rail supporting surface 25. The rail supporting surface 25 allows the rail to be placed on a flat surface, and may be formed inside the rail fixing piece 24 or on both inner and outer sides as shown in the drawing. Then, the rail fixing pieces 24 are provided with rail fixing bolt holes 26, 26 at a constant pitch or an arbitrary pitch.

In addition, in the intermediate seal receiving base 3, the base 27 thereof is about 1 / about the width of the base 21 of the station rail receiving base 2.
2 or the same as the rail pedestal 2 except that it is slightly narrower than that, and the reference numerals are also the same.

A primary side LM1 of a linear step motor is installed at a predetermined position on the base 21 of the station rail support 2.

The traveling rail 5 is arranged on the rail supporting surfaces 25 of the rail pedestals 2 and 3, and the rail fixing piece 2 is attached to the traveling rail 5.
Bolt holes 51 similar to the bolt hole pitch drilled in 4
And the end surface 52 of the traveling rail 5 is obliquely cut, and when the traveling rails are joined together, the joining surface is formed into an inclined surface having an angle, so that the carrier truck travels on the traveling rails. When riding, make sure that you can run smoothly without rattling.

In order to provide the traveling rails 5 on the rail pedestals 2 or 3, the traveling rails 5 are placed on the rail supporting surfaces 25 of the rail pedestals 2 and 3, and the rail stoppers are provided between the bolt holes 51 and 26 that match each other. The bolt 6 for use is inserted, and the nut 7 is screwed onto the bolt 6. At this time, the end of the traveling rail 5 is projected on the side of the rail pedestal 2 and slightly recessed on the side of the rail pedestal 3, so that when the end faces of the two rail pedestals 2 and 3 are butted against each other. , End faces 52 of both traveling rails 5, 5,
The 52 are also in contact with each other, so that the traveling rail becomes as if it were a single rail.

To join the station rail cradle 2 and the intermediate rail cradle 3 to each other, the connection key 8, the connection plate 9, and the bolt 10 are connected.
And are used. This connection key 8 is a trapezoidal groove 2
It has a cross-sectional shape to be inserted into 3 and a length sufficient for joining two opposing rail pedestals 2 and 3, and is provided with two to three or more female screw holes 81 and 81. Further, the connection plate 9 is a flat plate, and the bolt insertion holes 91, 91 are drilled at the same position and pitch as the female screw holes 81 of the connection key 8.
The bolt 10 inserted into the connection plate is screwed into the female screw hole 81 of the connection key 8 fitted in the dovetail groove 23.

First, the connecting key 8 is inserted into the dovetail groove 23 of the station rail pedestal 2. At this time, about half of the connecting key 8 is inserted into the dovetail groove, and the remaining half is projected. Next, the end faces of both rail pedestals 2 and 3 are butted so that the connecting key 8 protruding from the end of the station rail pedestal is inserted into the dovetail groove 23 of the intermediate rail pedestal 3. Then, the connection plate 9 is applied along the connection key, the bolts 10, 10 are inserted into the bolt holes 91, the bolts 10 are rotated and screwed into the female screw holes 81, 81, and the bolts 10 are strongly tightened and projected. As a result, both side pieces of the dovetail groove of the rail pedestals 2 and 3 are firmly sandwiched by the connection key and the connection plate, and the rail pedestals are connected and fixed.

Reference numeral 11 denotes a carrier truck. A secondary side plate LM2 of a linear step motor is vertically provided on the lower surface of the carrier truck 11, and wheels 12, 12 are arranged on the lower surfaces of both sides. , 5 is placed on the rails and allowed to run along the rails.

In this embodiment, the linear stepper motor is used to drive the carriage, but it goes without saying that a linear induction motor may be used as well.

Further, the traveling rail of the present invention can also be used for the rail connection portion of the air floating type transportation rail.

〔The invention's effect〕

According to the present invention, a dovetail groove is provided on the outer surface of the rail pedestal to which the traveling rail is attached at the upper portion, and a bolt is screwed between the connection key fitted into the groove and the connection plate opposite to the key. Since the adjacent rail pedestals are connected to each other, the rail pedestals can be connected easily and accurately without processing bolt holes for connection, etc., and by just tightening the tightening bolts. The level of the rail surface is made uniform without leveling the rail surface, and since aluminum extrusion products can be used for each rail pedestal, it is lightweight and easy to handle, and an inexpensive traveling path can be obtained. Have.

[Brief description of drawings]

1 is an exploded perspective view, FIG. 2 is a side view, FIG. 3 is an embodiment diagram, and FIG. 4 is a known example diagram. 1 is a base, 2 is a station rail pedestal, 3 is an intermediate rail pedestal 21, 27 is a base portion, 22 is a leg piece, 23 is a dovetail groove, 24 is a rail fixing piece, 25 is a rail support surface, 26
Is a bolt hole, 4 is a bolt, 5 is a traveling rail, 6 and 10 are bolts, 7 is a nut, 8 is a connecting key, and 9 is a connecting plate.

Claims (1)

[Claims] 1. In a traveling rail for a transporting device using a linear motor, which is sequentially fitted with rails or rail pedestals having fixed-size rails, a dovetail is attached to the outer surface of the rail pedestal to which the traveling rail is attached. A groove is provided, and a bolt is screwed between a connection key to be inserted into the groove and a connection plate facing the key, so that adjacent rail pedestals are connected to each other. A traveling rail for a conveyor that uses a linear motor.