JP3550959B2 - Rail-to-rail connection structure for transfer equipment - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rail-to-rail connection structure for a transport facility used in a suspended transport facility for transporting a vehicle body on a fixed path on a ceiling side, for example, in an automobile assembly plant.
[0002]
[Prior art]
Conventionally, as this type of rail-to-rail connection structure, for example, a rail for a trolley conveyor disclosed in Japanese Utility Model Laid-Open No. 53-115586 has been provided. That is, a power line rail made of an I-shaped member and a pair of left and right free line rails made of a C-shaped member and having their open portions opposed to each other are arranged, and these rails are connected at required intervals at an intermediate portion. And connected at both ends by connecting yokes.
[0003]
Here, the connecting yoke is formed such that a projecting portion integrally extending therefrom is bent at right angles to the inside of both lower ends thereof. Then, with the back surface of the free line rail being in surface contact with the inner surface of the overhang portion, welding using the edge of the overhang portion is performed, whereby the outer surface of the connection yoke and the rail end surface of the free line rail Are flush with each other, and both are connected. In addition, the trolley conveyor rail and the connecting yoke are similarly connected using a reinforcing rib plate or the like.
[0004]
The connection in the length direction of each rail is performed by applying a bolt / nut connecting tool between the communicating through holes in a state where the outer surfaces of both connecting yokes are in contact with each other. ing.
[0005]
[Problems to be solved by the invention]
However, according to the conventional type described above, the rail device including one trolley conveyor rail, two free line rails, and a large number of yokes increases the scale of the object supported and guided by the rail, Larger and heavier. Therefore, the connection work in a state where the outer surfaces of the connection yokes are brought into contact with each other by lifting the rail device or the like cannot be performed quickly because communication between the connection through holes cannot be easily performed, and time is not required. That would be.
[0006]
Therefore, an object of the present invention is to provide a rail-to-rail connection structure for a transport facility that can easily and quickly connect even if the size and weight are increased. Things.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the rail-to-rail connecting structure for transport equipment according to claim 1 of the present invention is a state in which rails whose longitudinal direction is the front-rear direction and whose end faces are opposed to each other. A rail-to-rail connection structure for transport equipment that performs longitudinal connection via a yoke material , wherein the yoke material has a welding margin at an inner position where a welding margin is placed on a rail end surface of the rail. While being fixed to the rail end by using welding, spacers are arranged on the surface outside the end of the yoke material with a thickness to fill the welding allowance, and at each connection end side, from one side in the left and right direction A positioning body protruding in the front-rear direction is provided, and the positioning body is positioned separately in the left-right direction when the end faces of the connecting rails face each other, and the connection end side opposed by both positioning bodies is located. In a state where they are positioned relative to each other Mutual coupling holes that are communicated are formed from the yoke material spacer, in which characterized in that it is connected via a connector to be inserted between the coupling hole.
[0008]
Therefore, according to the first aspect of the present invention, another rail is moved closer to the erected rail, the end faces of the connecting rails are opposed to each other (corresponding to the corresponding rails), and the rails are distributed in the left-right direction. The positioning holes can be communicated with each other by causing the two positioning members to act on the rails on the side of the connecting end that are opposed to each other to position each other. Then, by connecting the yoke members through the connecting member inserted between the connected connecting member holes, the yoke member on the connecting end side is used to connect the rails in the rail length direction (front-back direction). Connection can be made. At that time, since the spacer is fixed to the surface outside the end of the yoke material so as to fill the welding allowance, the tightening force of the connecting tool is applied between the spacers that are in considerable contact. That is, it does not act between the end faces of the rails that are brought into contact with each other or between the yoke members that are likely to be distorted.
[0009]
According to a second aspect of the present invention, there is provided a rail-to-rail connecting structure for a transport facility according to the first aspect, wherein the rail is formed of a pair of right and left C-shaped members whose open portions are opposed to each other. The body is fixed to the outer surface of one of the C-shaped members.
[0010]
Therefore, according to the second aspect of the present invention, both positioning members that are positioned separately in the left-right direction can be positioned relative to each other by abutting the outer surfaces of the C-shaped members on the rails on the side of the opposed connection end.
[0011]
According to a third aspect of the present invention, there is provided a rail-to-rail connection structure for transport equipment according to the first or second aspect, wherein the rail is supported by a driving body using a chain that applies a moving force to the moving body. And a second rail on which the moving body is supported and guided, and the yoke member connects the rails.
[0012]
Therefore, according to the invention of claim 3, the first rail and the second rail can be connected via a plurality of yoke members. Then, at the time of operation after completion of expected assembly and the like, the moving body can be moved on a fixed route by receiving the moving force of the driving body. At this time, the moving body can move on a fixed path by the support guide by the second rail, and the driving body can move by the support guide by the first rail.
[0013]
According to a fourth aspect of the present invention, there is provided the inter-rail connecting structure for a transport facility according to the third aspect, wherein the first rail is made of an I-shaped member arranged at an upper position, and the second rail is The positioning member is fixed to the lower surface of one of the C-shaped members, and the positioning member is fixed to the lower surface of one of the C-shaped members.
[0014]
Therefore, according to the invention of claim 4, for example, another rail having a slightly rotated posture is moved closer to the erected rail so that the end faces of the connecting rails face each other (correspondingly contact). By rotating the other rail in the opposite direction, the two positioning members, which are positioned separately in the left-right direction, are brought into contact with the lower surface of the C-shaped member on the rail on the opposite connection end side, They can be positioned relative to each other.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings as a state in which the present invention is applied to a hanging transport facility (an example of a transport facility) that transports an article to be transported on a fixed route on a ceiling side. The suspended transfer equipment 1 includes a rail device 10, a transfer device 40 supported and guided by the rail device 10, and the like.
[0016]
The rail device 10 includes a first rail 11 formed of an I-shaped member and disposed at a higher position, a pair of left and right second rails 15 formed of a C-shaped member and disposed at a lower position with their open portions opposed to each other. It is composed of a gate-plate-shaped intermediate yoke member 20 and an end yoke member 21 provided at predetermined positions in the rail length direction to connect the rails 11 and 15. The yoke members 20 and 21 are formed in a gate-shaped flat plate shape by the upper plate portions 20A and 21A and the pair of left and right side plate portions 20B and 21B, and are also formed from the lower middle portions of the side plate portions 20B and 21B. , Inwardly projecting portions 20C and 21C are integrally connected.
[0017]
The middle yoke member 20 is welded on both sides 12 by contacting the lower edge of the central portion of the upper plate portion 20A to the upper surface 11a of the first rail 11. Further, the lower inner edge of both side plate portions 20B is brought into contact with the outer surface 15a of the second rail 15 to be welded on both sides, and the downward edge of the projecting portion 20C is formed on the upper surface 15c of the second rail 15. It is brought into contact and welded on both sides 17. Thus, the middle yoke member 20 connects the rails 11 and 15 to each other.
[0018]
The end yoke member 21 is also welded to the first rail 11 and the second rail 15 in the same manner as the intermediate yoke member 20 described above. At this time, the end yoke material 21 is placed on the inner side of the rail end surfaces 11b and 15b of the rails 11 and 15 where the welding allowance A is placed, and the double-sided welding 12, 16, 17 ( Or one-sided welding).
[0019]
Further, a spacer is provided on a surface of the end yoke member 21 on the outer side of the end so as to fill the welding allowance A described above. That is, in the end yoke member 21, the upper spacer 22 is disposed on the outer surface side at the center of the upper plate portion 21A, and the lower spacer 23 is disposed on the outer surface below the left and right side plate portions 21B. These spacers 22 and 23 have a rectangular plate shape and are fixed to the end yoke member 21 in a state where they are temporarily welded 24 and 25.
[0020]
A pair of left and right (single or plural) upper connector holes 26 are formed from the upper plate portion 21A to the upper spacer 22, and upper and lower holes 26 are formed from the side plate portion 21B to the lower spacer 23, respectively. A pair (single or plural) of lower connector holes 27 are formed.
[0021]
In the rail device 10 having the above-described configuration, the end yoke member 21 serves as a connection end, and a positioning body 28 is provided on each connection end side so as to project from one of the left and right directions in the front-rear direction. . That is, the positioning body 28 has a rectangular plate shape, and the welding 29 is applied to the lower surface (outer surface) 15c of one of the second rails 15 of the pair of left and right C-shaped members. It is fixed by.
[0022]
When the rail end faces 11b and 15b of the connecting rails 11 and 15 are opposed to each other, the positioning body 28 is distributed in the left and right direction. Then, the connecting holes 26, 26, 27, and 27 are communicated with each other in a state where the connection end portions facing each other (corresponding to each other) are positioned with each other by the two positioning bodies 28, and the communication is performed. By connecting the connecting tool 30 between the connecting tool holes 26, 26, 27, 27, the end yoke members 21 are connected. That is, the connecting tool 30 is composed of, for example, a bolt 31, a nut 32, a washer 33, and the like. After the bolt 31 is inserted through the connecting tool holes 26, 26, 27, and 27 into the washer 33, the nut 32 is screwed. It is connected by being tightened.
[0023]
For example, the intermediate yoke member 20 is connected to the bracket 5 from the ceiling structure (not shown) via a connector 6 such as a bolt and nut inserted into the upper connector hole 26.
[0024]
In the rail apparatus 10 configured as described above, the second rail 15 guides and supports the moving body, and the first rail 11 supports and guides the driving body using a chain that applies a moving force to the moving body. I do.
[0025]
That is, the trolley device 41, which is an example of a moving body, includes a front trolley 42, a free trolley 43, a rear trolley 44, a connecting rod 45 connecting the front trolley 42 and the free trolley 43, a free trolley 43 and a rear trolley 44. And a connecting frame 47 for connecting between the trunnion pins 46 continuously provided from the front. Each of the trolleys 42, 43, and 44 is guided between the guide wheels 48 fitted and supported on the second rail 15 and the end faces of the lower plate portions of the second rails 15. A run-out prevention wheel 49 is provided.
[0026]
The front trolley 42 is provided with a passive body 50 which can be disengaged from a driving body (described later) from the driving body so as to be able to move up and down, and swings up and down via a horizontal shaft 51 in the middle. An operably mounted operating lever 52 extends forward, and a rear end of the operating lever 52 and a lower end of the driven body 50 are connected via a pin. Therefore, the operating lever 52 and the passive body 50 are linked so that the passive body 50 descends when the front end of the operating lever 52 moves upward.
[0027]
At an upper end of the front trolley 42 and at a position behind the passive body 50, a runaway preventing body (hold dog) 53 for preventing the passive body 50 from running away forward when the transmission and the passive body 50 are engaged. Is provided. The runaway preventing body 53 is configured to be swingable back and forth via a pin, and normally its upper end is urged by a weight portion so as to protrude into the moving path of the transmission. The other rear trolley 43 has a cam tail 54 extending rearward to move the operation lever 52 upward.
[0028]
To the trolley device 41, a support device 55 for the transported object is attached. That is, the supporting device 55 is provided with a C-neck 56 attached to the lower ends of both trunnion pins 46, an arm 57 attached to the lower part of the C-neck 56 and extending downward, and provided horizontally at the lower end of the arm 57. And a supporting portion 58. B indicates a transferred object.
[0029]
A driving body 60 using a chain, which is supported and guided by the first rail 11 and applies a moving force to the trolley device 41, includes a link chain 61 disposed along the upper rail 11, and a chain length of the link chain 61. The trolley 62 includes a trolley 62 provided at a predetermined position in the vertical direction, and a transmission 66 that is vertically protruded from the link chain 61 near the trolley 62 and to which the passive body 50 is detachable.
[0030]
The trolley portion 62 includes a pair of left and right trolley members 63 provided on a center link of the link chain 61, and rollers provided at one end (upper portion) of the trolley members 63 via a left-right axis 64 so as to freely rotate. The rollers 65 are supported and guided on the upper surface of the lower plate of the upper rail 11. The link chain 61 is linked to a drive unit (not shown by a motor or the like).
[0031]
The operation of the above embodiment will be described below.
The intermediate yoke member 20 and the end yoke member 21 for connecting the first rail 11 and the second rail 15 are formed in the same, gate-shaped flat plate shape, and spacers 22 and 23 are provided at predetermined locations. Then, temporary welding 24 and 25 are performed, and holes 26 and 27 for connecting tools are respectively formed.
[0032]
Before assembling the rail device 10, the first rail 11 and the second rail 15 are connected via the intermediate yoke member 20 and the end yoke member 21. That is, in each intermediate yoke member 20, the lower edge of the central portion of the upper plate portion 20A is double-side welded 12 to the upper surface 11a of the first rail 11, and the lower inner edge of the both plate portions 20B is formed of the second rail. 15 is welded on both sides 16 while being in contact with the outer side surface 15a, and the downward edge of the projection 20C is brought into contact with the upper surface 15c of the second rail 15 and welded on both sides. Thus, the middle yoke member 20 connects the rails 11 and 15 to each other.
[0033]
At this time, the contact direction between the intermediate yoke member 20 and the second rail 15 is two directions, that is, a left-right direction with respect to the outer side surface 15a of the second rail 15 and a vertical direction with respect to the upper surface 15c of the second rail 15. As a result, the contact length, that is, the connection length by the welds 16 and 17 is increased, so that the connection strength between the intermediate yoke member 20 and the second rail 15 can be improved.
[0034]
The end yoke member 21 also connects the rails 11 and 15 in the same manner as the intermediate yoke member 20 described above. At this time, the end yoke member 21 is located at an inner position where the welding allowance A is placed on the rail end surfaces 11b and 15b of the rails 11 and 15, and the lower edge of the central portion of the upper plate 21A is the first rail. 11 is fixed to the rail end by double-sided welding 12 using the welding allowance A on the upper surface 11a, and the lower inner edge of both side plate portions 21B uses the welding allowance A on the outer surface 15a of the second rail 15. The rails 11 and 15 are connected by being fixed to the rail ends by double-sided welding 16 and 17.
[0035]
Before and after the connection by the yoke members 20 and 21, the positioning body 28 is fixed to the lower surface 15c of the predetermined second rail 15 by welding 29 in a predetermined posture on the connection end side.
[0036]
One of the rail devices 10 thus formed is connected to the bracket 5 from the ceiling structure side via the connecting member 6 inserted into the upper connecting hole 26 of the intermediate yoke member 20. It will be installed on the ceiling side. Another rail device 10 is rail-connected to and erected on the rail device 10 thus erected.
[0037]
That is, in order to connect the rails in the rail length direction (front-rear direction) using the end yoke material 21, for example, another rail in a posture slightly rotated with respect to the installed rail device 10 is used. By moving the device 10 closer to each other, the end faces 11b, 11b, 15b, 15b of the rails 11, 11, 15, 15 to be connected are opposed to each other (correspondingly contact), and another rail device 10 is rotated in the opposite direction. Thus, the two positioning members 28 which are distributed and positioned in the left-right direction are brought into contact with the lower surfaces 15d, 15d of the second rail 15 on the side of the opposing connection end from below, and are positioned relative to each other.
[0038]
Due to this positioning, the connection holes 26, 26, 27, 27 are easily and quickly communicated with each other. Then, the end yoke members 21 are connected to each other through the connecting tool 30 inserted between the connected connecting tool holes 26, 26, 27, 27. This can be done by inserting the bolt 31 into the coupling hole 26, 26, 27, 27, fitting the washer 33 to the protruding end, screwing the nut 32, and tightening.
[0039]
At this time, since the spacers 22 and 23 are fixed to the surface outside the end of the end yoke member 21 with a thickness that fills the above-mentioned welding allowance A, the tightening force by the coupling tool 30 is considerable. It acts between the contacted spacers 22 and 23, that is, between the contacted rail end faces 11b, 11b, 15b and 15b of the rails 11 and 15 and between the end yoke members 21 where distortion easily occurs. Therefore, the rail connection via the end yoke member 21 and the connecting member 26 can be easily, quickly and accurately performed.
[0040]
At the time of operation after the intended assembly of the rail device 10 and the incorporation of the transport device 40, the movement of the trolley device 41 is achieved by engaging the transmission 66 with the passive body 50, thereby reducing the moving force of the driving body 60. Receiving is performed on a fixed route. At this time, the front end side of the operation lever 52 has moved downward. When the trolley device 41 tries to run away during such movement, the runaway preventing body 53 comes into contact with the rear surface of the transmission body 66, so that the runaway is prevented.
[0041]
During the operation as described above, the trolley device 41 has its guide wheel 48 fitted and supported and guided by the second rail 15, and the run-out prevention wheel 49 is provided between the end faces of the lower plate portion of the second rail 15. , The vehicle is stably moved on a fixed route without large swing. The roller 65 of the driving body 60 is smoothly moved by being supported and guided by the first rail 11.
[0042]
In the above-described embodiment, the rectangular plate-shaped positioning body 28 is shown, but this may be a rod-shaped or block-shaped positioning body. Further, the positioning body may be of a pin insertion type or a fitting type.
[0043]
In the embodiment described above, the positioning body 28 is abutted from below on the lower surfaces 15d, 15d of the second rails 15 on the connection end side opposed to each other, and is positioned with respect to each other. The upper surface 15c, 15c may be contacted from above to position each other.
[0044]
In the above-described embodiment, the suspended transport facility 1 is shown as the transport facility, but this may be a floor-type transport facility that moves a cart.
In the above-described embodiment, the combination of the first rail 11 made of an I-shaped member and the second rail 15 made of a C-shaped member is shown as the rail device 10. Various combinations are possible, such as a shape made of a character-shaped material, with open portions facing each other and arranged in a pair on the left and right.
[0045]
In the above-described embodiment, a bolt / nut type is shown as the connecting tool 30, but it may be a rivet type, a bolt / caulked nut type, or the like. In the above-described embodiment, the type in which the driving body 60 using the chain is supported and guided by the upper first rail 11 is shown, but this is because the self-propelled body supported and guided by the upper first rail 11 is used. The type which gives a moving force to the trolley device 41 may be sufficient.
[0046]
In the above-described embodiment, the passive body 50 is engaged and disengaged with respect to the transmission body 66, but this may be a configuration in which the transmission body 66 is engaged and disengaged with respect to the passive body 50.
[0047]
【The invention's effect】
According to the first aspect of the present invention, another rail is moved closer to the erected rail, the end faces of the connecting rails are opposed to each other (corresponding to the corresponding rail), and the rails are distributed in the left-right direction. By causing the two positioning members to act on the rails on the side of the connecting end that are opposed to each other and positioning each other, the hole for the connecting member can be easily and quickly communicated with each other. Then, by connecting the yoke members through the connecting member inserted between the connected connecting member holes, the yoke member on the connecting end side is used to connect the rails in the rail length direction (front-back direction). Connection can be made. At that time, since the spacer is fixed to a surface outside the end of the yoke material with a thickness that fills the welding allowance, the tightening force by the coupling tool can be applied between the spacers that have come into considerable contact, That is, it does not act between the rail end faces of the rails that are brought into contact with each other or between the yoke members that are liable to be distorted. Therefore, the rail connection via the yoke material and the connecting member is increased in size and weight. Even if it does, it can be performed easily, quickly and with high accuracy.
[0048]
According to the above-described second aspect of the present invention, both positioning members, which are positioned separately in the left-right direction, are brought into contact with the outer surfaces of the C-shaped members on the rails on the side of the connecting end portions facing each other, so that the positioning members are positioned relative to each other. can do.
[0049]
According to the third aspect of the present invention, the first rail and the second rail can be connected via a plurality of yoke members, and during operation, the moving body is supported and guided by the second rail in a fixed path. It can move stably on the top, and the driving body can move smoothly by the support guide by the first rail.
[0050]
Further, according to the fourth aspect of the present invention, for example, another rail having a slightly rotated posture is moved closer to the erected rail so that the end faces of the connecting rails face each other (correspondingly. Contact), and another rail is rotated in the opposite direction so that the two positioning members, which are positioned separately in the left-right direction, abut on the lower surfaces of the C-shaped members on the rails on the opposite connection end side. Thus, they can be positioned with respect to each other.
[Brief description of the drawings]
FIG. 1 shows an example of an embodiment of the present invention, and is a perspective view of a main part in a rail-to-rail connection structure for transport equipment before connection of main parts.
FIG. 2 is a partially cutaway plan view of a main portion of the rail-to-rail connection structure for the transport facility when a main portion is connected.
FIG. 3 is a partially cut-away side view of a main part of the rail-to-rail connection structure for the transport facility when a main part is connected.
FIG. 4 is a longitudinal sectional front view at the time of connection in the rail connection structure for the transport equipment.
FIG. 5 is a side view of the transport equipment.
[Explanation of symbols]
1 Hanging transfer equipment (transport equipment)
Reference Signs List 10 rail device 11 first rail 11a upper surface 11b rail end surface 15 second rail 15a outer side surface 15b rail end surface 15c upper surface 15d lower surface 20 middle yoke material 21 end yoke material 22 upper spacer 23 lower spacer 26 upper connector hole 27 lower Connection tool hole 28 Positioning body 30 Connection tool 40 Transport device 41 Trolley device (moving body)
Reference Signs List 50 Passive body 55 Supporting device 60 Drive body 66 using a chain Transmission body A Welding allowance B Workpiece

Claims (4)

A rail-to-rail connection structure for transport equipment that connects in the front-rear direction via a yoke material in a state in which rails whose longitudinal direction is the front-rear direction, with their end faces facing each other,
The yoke material is fixed to the rail end by welding using the welding allowance at an inner position where a welding allowance is placed on the rail end surface of the rail, and a welded surface is provided outside the end of the yoke material. Spacers are provided with a thickness to fill the margins, and a positioning body is provided on each connection end side that protrudes from one side in the left-right direction in the front-rear direction. When it is oriented, it is positioned in the left and right direction, and in a state where the connection end sides facing each other are positioned by both positioning bodies, a connection tool hole that is mutually communicated is formed from the yoke material to the spacer. A rail connection structure for a transport facility, wherein the rails are connected via a connecting tool inserted between the connecting tool holes. 2. The rail according to claim 1, wherein the rail is formed of a pair of left and right C-shaped members whose opening portions are opposed to each other, and the positioning body is fixed to an outer surface of one of the C-shaped members. Connection structure. The rail includes a first rail that supports and guides a driving body using a chain that applies a moving force to the moving body, and a second rail that supports and guides the moving body. The yoke member connects the rails. The rail-to-rail connection structure for a transport facility according to claim 1 or 2, wherein: The first rail is formed of an I-shaped member disposed at an upper position, the second rail is formed of a pair of C-shaped members disposed at a lower position, and the opening portions thereof are opposed to each other. The rail-to-rail connection structure for a transport facility according to claim 3, wherein the rail is fixed to a lower surface.

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