JPH04108601U - Carrier rail structure - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a rail structure in which there is almost no error in the spacing (gauge) between a pair of rails. [Structure] The rail structure has a configuration in which a pair of rails on which the carrier runs guided by guide rollers are connected from the inside by a connecting plate, and a power supply line for the carrier is laid outside the rail on which the guide rollers run. ing.
The carrier receives electric power from the power supply line and travels on a pair of rails under the guidance of guide rollers. The pair of rails are connected from the inside by a connecting plate that has been pre-processed to a predetermined size, so there is almost no gauge error.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a rail structure for a carrier to run on.

0002

[Conventional technology]

Conventionally, the carrier (not shown) that transports the workpiece is a pair of rails laid directly on the floor. It is designed to run on the rail.

0003

[Problem that the idea aims to solve]

However, since the rails of such carriers are laid on the floor, a pair of rails The rail spacing (gauge) must be measured while laying, which may cause errors in the gauge. Similarly, there is a problem that the carrier cannot run smoothly.

0004

[Means to solve the problem]

The present invention connects a pair of rails on which a carrier runs using guide rollers. The key is connected from the inside by a connecting plate, and the key is attached to the outside of the rail on which the guide roller runs. The above-mentioned problem has been solved by the configuration in which the carrier power supply line is arranged.

[0005]

[Effect]

The carrier receives power from the power supply line and moves between a pair of rails under the guidance of guide rollers. run on top. A pair of rails are connected from the inside by a connection plate that has been pre-processed to the specified dimensions. There is almost no error in the gauge.

[0006]

【Example】

Hereinafter, embodiments of the present invention will be described based on the drawings. The carrier 20 (see FIG. 3) is used, for example, in an automobile production line. The driving wheel 21 and the driven wheel 22 are connected by a connecting bar 23. The workpiece W is loaded on the workpiece loading platform 24, and the workpiece is placed on the pair of rails R, R (see Fig. 4). (See) Rails R and R are laid under the work floor (floor) F. It is.

[0007] The drive wheel 21 (see FIGS. 3 and 4) is a single drive wheel rotated by a drive motor 30. It has a wheel 31 and one driven wheel (not shown). The drive wheels 31 are on both sides of the rail. The rail is guided by eight guide rollers 33 (two are not shown) that contact the side surfaces. It is designed to run on the rail R. There is a control box on the side of the drive vehicle 21. A box 34 is provided. Furthermore, the driving vehicle 21 is provided with power supply lines 60, 6, which will be described later. A plurality of contacts 61, 61, 61, 61 that contact 0 are provided. The driven vehicle 22 (see FIGS. 3 and 4) has two driven wheels 35 and 36. one One driven wheel 35 has eight guide rollers 37 (four guide rollers) that contact both sides of the rail. (not shown), the train runs on the rail R.

[0008] The connecting bar 23 (see FIG. 3) connects the driving wheel 21 and the driven wheel 22 to support shafts 50, 51. They are connected to each other so that they can swing in the horizontal direction. The tips of the support shafts 50 and 51 extend upward and are inserted into the holes 54 and 55 of the workpiece loading table 24. is included. For this reason, the workpiece loading platform 24 has a collar 56 on the support shafts 50, 51, 57, and is able to swing freely relative to the driving wheel 21 and the driven wheel 22. When lifted, it can be removed from the support shafts 50, 51. Ru. In the above structure, the driving wheel 21, driven wheel 22, connecting bar 23, etc. are placed under the work floor F. It is placed. Along with this, the support shafts 50 and 51 are formed on the work floor F. It passes through the slit S (see FIG. 4).

[0009] The cross section of the pair of rails R and R (see Figure 1) is the capital letter I (I). It has a similar shape, and has two pairs of protrusions 71, 72, 7 facing each other. 3,74 are formed parallel to the web 75. Among the pair of protrusions, the height of the lower protrusions 72 and 74 is the same as the height of the upper protrusions 71 and 73. formed higher. Furthermore, the pair of rails R and R have plate-shaped supports on the inside. They are connected to each other by 80.

0010 The support column 80 stands on the bottom 91 of the raceway groove 90 (see FIG. 3) in which the carrier 20 runs. It is located in a T-shape. Furthermore, the strut 80 (see FIG. 1) is installed on the head. It is compensated by the cut rib 82 and the four ribs 83, two on each side. being strengthened. Locking pieces 84, 84 are integrally provided at both upper ends of the support column 80. There is. The locking piece 84 is a plate that engages with the protrusions 71 and 72. The clamping plate 85 is connected to the locking plate 84 by tightening the bolt 86 to form a pair of protrusions 71. , 72, and there are a total of 4 plates, 2 for each rail R (see Figure 2). It is equipped. Therefore, to attach the rail R to the support column 80, first attach the rail R to a pair of protrusions. 71 and 72 to engage the locking piece 84, and then tighten the bolt 86. Tighten the locking piece 84 and the two clamping plates 72, 72 to clamp the pair of protrusions 71, 72. It is done by doing. The support column 80 is pre-processed to a predetermined size. Therefore, there is almost no error in the gauge. This allows the carrier 20 to move smoothly. can be run on.

[0011] The outer side surface of one rail R that the guide roller 33 runs in contact with (see Figure 1) power supply lines 60, 60, control signal lines 62, 62, etc. Power supply Line 60 is an electric wire that supplies power to carrier 20. The control signal line 62 is connected to the ground station. This is a line for sending and receiving control signals to and from the carrier 20. Therefore, the carrier 20 loads the workpiece W on the workpiece loading table 24 and drives it. The motor 30 runs on a pair of rails R, R in the direction of arrow A in FIG. drive Electric power for the motor 30 is supplied from a power supply line 60 via a contactor 61. Moreover, contact The tentacle 61 is a part on which the carrier 20 runs relatively stably with respect to the rail R. Since it is provided near the guide roller 33 that It is supposed to be done. This will prevent the power supply from being cut off while the carrier 20 is running. There is no problem and the carrier 20 can run smoothly.

0012

[Effect of the idea]

The rail structure of the present invention has the following effects. A pair of rails are connected from the inside by a connecting plate, so the connecting plate By machining to predetermined dimensions, gauge errors can be reduced. This allows the carrier to run smoothly. Since a pair of rails are connected from the inside by a connection plate, the rail It is possible to easily lay the power supply line outside, and it is easy to maintain the power supply line after installation. Nonces can also be easily performed. Since the power supply line is laid on the rail on which the guide roller runs, the carrier is Electric power can be reliably obtained from the electric wires, and the vehicle can run smoothly.

[Brief explanation of drawings]

FIG. 1 is a front view of a rail structure according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG. 1, partially shown in section.

FIG. 3 is a front view of a carrier running on a rail having the rail structure of the present invention, showing a driven wheel portion of a driving vehicle;
FIG. 2 is a diagram in which a driven wheel on one side of the driven vehicle is omitted.

FIG. 4 is a left side view of FIG. 3, with a driven wheel portion of the drive vehicle omitted.

[Explanation of symbols]

R rail 20 Carrier 33 Guide roller 60 Power supply line 80 Post (connection plate)

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Mino ▲Jiyo▼Osamu 4-17-96 Tsurumi, Tsurumi-ku, Osaka City, Osaka Prefecture Inside Tsubakimoto Chain Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A pair of rails on which a carrier runs under the guidance of a guide roller are connected to each other from inside by a connecting plate, and a power supply line for the carrier is arranged outside the rail on which the guide roller runs. The rail structure of the carrier.