JP2012179636A - Connection mechanism of traveling rail for automatic machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the connection mechanism of a traveling rail for an automatic machine, which attains high rigid connection despite of simplified connection mechanism and is usable even when no support is provided on the lower side.SOLUTION: A unit rail 10 is formed so as to have a thickness enough to bear traveling of the automatic machine, and a key 21 for rail connection projecting from the connection surface of the unit rail 10 is inserted into a key groove 31 for rail connection provided on a connection surface as a matching member to be engaged with each other. At the same time, a hook 22 provided on the side surface of the unit rail 10 is engaged in a state that it is overlaid on the side surface of a unit rail 10 as a matching member, and the overlaid portions are joined by a cam lever 33, thereby connecting the unit rail 10 with each other.

Description

  The present invention relates to a connecting mechanism for a traveling rail of an automatic machine such as a welding machine or a cutting machine.

  As a traveling rail for a conventional automatic welding machine carriage, there is a traveling rail for an automatic welding machine that can be detachably fixed on a steel plate member (see, for example, Patent Document 1).

  The traveling rail of Patent Document 1 is used in a state where it is supported from below by a steel plate member, but there is also a traveling rail that can be used in any place including a state where there is no support on the lower side (for example, , See Patent Document 2). In the technique of Patent Document 2, a small-diameter protrusion of a tubular rail is provided by providing a small-diameter protrusion at one end of each of a plurality of tubular rails having a cross-shaped cross-section on the outer periphery of the circular tube, and providing a large-diameter hole at the other end. The tubular rails are connected to each other by inserting the portion into the large-diameter hole of another tubular rail, and the ridges provided on each tubular rail are sandwiched by rail clampers, so that the axis is coaxial. The connection that prohibits relative rotation is performed.

Japanese Utility Model Publication No. 5-24186 (FIG. 1) JP-A-9-234591 (FIG. 1)

  In the technique of Patent Document 1, since it is premised that the traveling rail is installed on the steel plate, the rigidity of the connecting portion between the traveling rails is low, and the structure does not function unless it is supported on the lower side of the traveling rail. .

  In the technique of Patent Document 2, it is a structure in which the tubular rails are connected by fitting between the small-diameter protruding portion and the large-diameter hole portion and sandwiching the ridge by the rail clamper, and when trying to obtain high rigidity with this structure, It is necessary to design the fitting accuracy strictly. However, if the fitting accuracy is tightened, there is a problem that even if a slight scratch occurs, it cannot be inserted and removed, and there is a possibility that it cannot be used on site.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. A connection mechanism for a traveling rail for an automatic machine that can be connected even if it is a simple connection mechanism and has high rigidity and can be used without a support on the lower side. The purpose is to provide.

  The connection mechanism of the automatic machine traveling rail according to the present invention is a connection mechanism for connecting the unit rails constituting the automatic machine traveling rail on which the automatic machine travels, and the unit rail is sufficiently capable of withstanding the traveling of the automatic machine. The rail connection key formed on the connecting surface of the unit rail is inserted into and locked in the rail connecting key groove provided on the connection surface of the connection partner, and the side surface of the unit rail is formed. The unit rails are locked and connected to each other by fastening the hooks provided on the side of the connection partner in a state of being overlapped, and fastening the overlapped portion with a cam lever.

  According to the present invention, the unit rail is formed to a thickness having sufficient strength to withstand the running of the automatic machine, and the rail connection key provided on the unit rail is provided with the rail connection key provided on the unit rail. The unit rails are inserted and locked in the groove, and the hooks provided on the side surfaces of the unit rails are overlapped with the side surfaces of the connection counterparts, and the overlapped portions are fastened with cam levers. Since the connection is fixed, the adhesion between the unit rails can be ensured, and a connection with high rigidity becomes possible. As a result, it is possible to obtain a traveling rail that can be used without any support on the lower side.

It is a figure which shows the connection operation | movement of the connection mechanism of the traveling rail for automatic machines which concerns on one embodiment of this invention. It is a perspective view of the one side of the connection part of the connection mechanism of FIG. It is a perspective view of the other side of the connection part of the connection mechanism of FIG. It is a perspective view of the state which connected the connection part of the connection mechanism of FIG. It is a figure which shows the usage example of the traveling rail for automatic machines of FIG.

FIG. 1 is a diagram showing a connection operation of a connection mechanism for a traveling rail for an automatic machine according to an embodiment of the present invention, and is a plan view of the connection mechanism. (A) of FIG. 1 (1) is a side view of the hook part of (b) of FIG. 1 (1). FIG. 2 is a perspective view of one side of a connection portion of the connection mechanism of FIG. FIG. 3 is a perspective view of the other side of the connection portion of the connection mechanism of FIG. FIG. 4 is a perspective view showing a state in which connection portions of the connection mechanism of FIG. 1 are connected.
The traveling rail 1 is configured by connecting a plurality of plate-shaped unit rails 10. One of both end portions of each unit rail 10 is an insertion portion 20 and the other is a receiving portion 30. Connection between the unit rails 10 is performed by connection between the insertion portion 20 and the receiving portion 30. In this example, the traveling rail 1 is made of an aluminum alloy (A2024-T351), and is formed to have a thickness that is strong enough for an automatic machine that travels on the traveling rail 1, for example, an automatic welding carriage.

  A plurality of rail grooves 11 extending in the traveling direction are arranged in the unit rail 10 in a direction orthogonal to the traveling direction. Although the insertion part 20 and the receiving part 30 point out the part within a fixed length distance from the both end surfaces (connection surface) of the unit rail 10, the insertion part 20 and the rail groove of the receiving part 30 among the rail grooves 11 The depth 12 is formed shallower than the other portions, and is configured to have high rigidity as a connecting portion of the traveling rail 1.

  On the connection surface of the insertion portion 20, a rail connection key 21 that protrudes in the insertion direction (longitudinal direction of the unit rail 10) (the arrow A direction in FIG. 1) is provided. The rail connection key 21 is formed in a substantially rectangular parallelepiped shape, and has a locking portion 21a that protrudes in the fastening direction on the end surface of the distal end side in the fastening direction (downward direction in FIG. 1) of the cam lever 33 described later. The rail connection key 21 is made of SUS, and its thickness (thickness in the direction orthogonal to the paper surface of FIG. 1) is set to a thickness that provides sufficient rigidity as a connection portion.

  In addition, the connection surface of the receiving portion 30 has a rail connection key groove 31 into which the rail connection key 21 of the insertion portion 20 is inserted and locked. The rail connection keyway 31 has a recess 31 a that meshes with the locking portion 21 a of the rail connection key 21.

  Further, a rail connection hook 22 that is engaged with the side surface of the unit rail 10 to be connected is provided on the side surface of the insertion portion 20. The rail connecting hook 22 has a protruding portion 23 that protrudes in a direction orthogonal to the insertion direction and a hook portion 24 that extends from the end of the protruding portion 23 toward the connection counterpart. The hook part 24 is formed so as to overlap the outside of the side surface of the connection partner in the connected state, and a notch 24a is formed on the front end surface of the hook part 24 in the insertion direction.

  A protrusion 32 that protrudes in a direction perpendicular to the insertion direction is formed on the side surface of the receiving portion 30, and a cam lever 33 is attached to the protrusion 32. Here, an example in which the rail connection hook 22 is provided in the insertion portion 20 and the cam lever 33 is provided in the receiving portion 30 is shown, but the reverse configuration, that is, the cam lever 33 is provided in the insertion portion 20 and the receiving portion 30 is provided. Alternatively, the rail connection hook 22 may be provided.

  When connecting the unit rails 10 configured as described above to configure the traveling rail 1, as shown in FIG. 1 (2), the rail connection key 21 provided in the insertion portion 20 is It is inserted into the rail connecting key groove 31 of the receiving portion 30. At this time, the hook portion 24 of the rail connection hook 22 is locked to the protruding portion 32 in a state of being superimposed on the outer side of the protruding portion 32 of the receiving portion 30, and the shaft portion of the cam lever 33 is notched to the notch of the hook portion 24. It will be in the state located in the bottom part of 24a.

  Then, by rotating the cam lever 33 in the direction of arrow B, as shown in FIG. 1 (3), the rail connection key 21 slides in the rail connection key groove 31, and the locking portion 21a is used for rail connection. The rail connecting hook 22 that overlaps the protruding portion 32 of the receiving portion 30 is fastened by the cam lever 33 so that the insertion portion 20 and the receiving portion 30 are firmly connected and fixed. Is done.

FIG. 5 shows an example of use of the traveling rails firmly connected as described above.
FIG. 5 is a diagram illustrating an example of a usage state of the traveling rail for the automatic machine illustrated in FIG. 1.
The traveling rail 1 is used, for example, in a state of being installed on the long face 40 of the hull block, and a welding robot (for example, about 60 kg) 50 travels on the upper surface of the traveling rail 1 in this example. As described above, the traveling rail 1 is formed to have a thickness sufficient to withstand the traveling of the automatic machine traveling on the traveling rail 1, and the connecting portion of the unit rail 10 has sufficient rigidity. Therefore, even if the traveling rail 1 is partially lifted from the floor surface and is not supported on the lower side, it can be used.

  As described above, according to the present embodiment, the rail connection key 21 is inserted and locked in the rail connection key groove 31 provided in the unit rail 10 of the connection partner, and the rail connection hook 22 is connected. Since it is engaged with the side of the mating unit rail 10 in a state of being overlapped and the overlapped portion is tightened by the cam lever 33, the rigidity of the connecting portion can be secured in consideration of easy workability. . In addition, since the unit rail 10 is formed to a thickness having sufficient strength to withstand the running of the automatic machine and the area of the connection surface is large, the adhesion between the connection surfaces can be ensured. The rigidity of can be increased. As a result, it is possible to obtain a traveling rail that can be used without any support on the lower side.

  In addition, the unit rail 10 is formed to a thickness that has sufficient strength to withstand the running of the automatic machine, and the thickness of the rail connection key 21 is set to a thickness that provides sufficient rigidity as a connection portion. Even if a load in the direction of gravity is applied from an automatic machine that travels above, deformation such as buckling does not occur.

  In addition, there is a dimensional margin between the rail connection key 21 and the rail connection key groove 31 so that the rail connection key 21 can slide in the rail connection key groove 31 when the cam lever 33 is tightened. Therefore, connection / removal is easy.

  As described above, the connection structure of the present example has a simple structure and can be easily connected / disconnected with the traveling rail 1 without tools, and has sufficient rigidity, so that stability and accuracy during traveling can be achieved. It can be made suitable as a connection mechanism for a traveling robot of a welding robot or an automatic welding carriage.

  In this example, the traveling rail of the automatic welding cart has been described. However, the rail is not limited to the automatic welding cart, and can be applied as a traveling rail for the cutting device carriage.

  In addition, the connection mechanism has been described with the unit rail 10 made of an aluminum alloy (A2024-T351) and the rail connection key 21 made of SUS. Good.

DESCRIPTION OF SYMBOLS 1 Traveling rail 10 Unit rail 11 Rail groove 12 Rail groove 20 Insertion part 21 Rail connection key 21a Locking part 22 Rail connection hook 23 Protrusion part 24 Hook part 24a Notch 30 Receiving part 31 Rail connection key groove 31a Recessed part 32 Projection 33 Cam Lever 40 Prop 50 Welding Robot

Claims (2)

A connection mechanism that connects unit rails that constitute a traveling rail for an automatic machine on which an automatic machine travels,
A rail connection key in which the unit rail is formed to a thickness having sufficient strength to withstand running of the automatic machine, and a rail connection key provided on the connection surface of the connection partner is provided on the connection surface of the unit rail. The unit is inserted into the groove and locked, and the hook portion provided on the side surface of the unit rail is locked in a state of being overlapped with the side surface of the connection partner, and the overlapped portion is fastened with a cam lever. A mechanism for connecting a traveling rail for an automatic machine, wherein the rails are connected and fixed to each other.   The unit rail is formed with a rail groove extending in the traveling direction, and the rail groove within a certain distance from the connecting surface of the unit rails is formed shallower than other portions. 2. The connecting mechanism for a traveling rail for an automatic machine according to claim 1.

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