JP4484069B2 - Carriage transfer system - Google Patents

Description

The present invention relates to a base vehicle transport system.

For example, in an automobile production line, there is a vehicle transportation system in which each part is assembled to a work placed on a carriage in the process of the carriage being transported through each process (for example, Patent Document 1). However, in the conventional cart transport system, an opening such as a guide groove for guiding the cart or a projection such as a guide rail extends along the cart transport path on the floor surface. There is a risk that your feet will be caught by or protrusions. In addition, in the conventional carriage transport system, when parts or tools dropped on the floor are caught between the opening or protrusion and the carriage, the production line is stopped and time is required for recovery. It may take. Furthermore, in the conventional cart transport system, in order to change the cart transport direction, it is necessary to install a cart swivel module and a cart lateral movement module between successive modules, and the facilities become complicated and large. There is a problem that the degree of freedom of layout is limited.
JP-A-8-169528 (paragraph numbers 0014 to 0042, FIGS. 1 to 4)

Therefore, the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a cart transport system in which the unevenness of the floor surface is eliminated to ensure the safety of the work environment.

In order to achieve the above-mentioned object, a cart transport system according to claim 1 of the present invention is a cart comprising a single or a plurality of pins that can move in and out of the floor surface and can reciprocate on the floor surface. A cart transport system including a cart transport path configured by appropriately arranging a transport module, and a cart provided with a pin engaging portion for selectively engaging each pin on the cart transport path. The pin engaging portion is composed of pin engaging holes disposed at the four corners of the carriage and pin engaging grooves extending on straight lines connecting the pin engaging holes adjacent to each other. It is characterized by that.

  In order to achieve the above object, a cart transport system according to claim 2 of the present invention is a cart including a single or a plurality of pins that can move in and out of the floor surface and can reciprocate on the floor surface. A cart transport system including a cart transport path configured by appropriately arranging a transport module, and a cart provided with a pin engaging portion for selectively engaging each pin on the cart transport path. The carriage transport module is provided on the same plane with respect to the floor surface, and is supported by a pin guide that is supported so that the pins can be moved up and down, and a sprocket disposed at both ends of the main body, and one end portion is pinned A crawler belt connected to one end of the guide and having the other end connected to the other end of the pin guide, and a crawler belt driven by rotating at least one of sprockets disposed at both ends of the main body. Drive mechanism and pin A pin raising / lowering mechanism in which the pin supported by the guide is moved up and down, and the pin raised by the pin raising / lowering mechanism is engaged with the selected pin engaging portion of the carriage, and in this state The crawler belt is driven by the crawler belt drive mechanism and the pin guide is reciprocated, whereby the carriage is moved along the carriage conveyance path along with the pin.

Invention according to claim 3, in truck transport system according to claim 2, pin lifting mechanism, the pin and the pin base being erected, pin guides reciprocating pin base is horizontally extended in the main body A guide rail that guides in a direction and a link mechanism that is interposed between the guide rail and the actuator, and the guide rail is driven by the actuator to move the guide rail up and down. The pin base is moved up and down in conjunction with the pin, and the pins are moved up and down with respect to the pin guide.

Therefore, in the first aspect of the present invention, each pin of the carriage transport module is selected from among the pin engaging portions constituted by a plurality of pin engaging holes and a plurality of pin engaging grooves. It is engaged with a pin engagement hole or a pin engagement groove.
According to the second aspect of the present invention, each pin protruding from the floor surface by being raised by the pin lifting mechanism is engaged with each selected pin engaging portion of the carriage, and in this state, the crawler belt When the crawler belt is driven by the drive mechanism and the pin guide is appropriately reciprocated, the carriage is carried by the pins along the carriage conveyance path.
According to the third aspect of the present invention, the link mechanism is driven by the actuator and the guide rail is moved up and down, so that the pin base is moved up and down in conjunction with the guide rail. As a result, the pin is moved up and down with respect to the pin guide and protrudes or retracts from the floor surface.

Work by eliminating the unevenness of the floor surface environmental safety can be provided a mount vehicle transport system that will be secured.

  An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, in the bogie transport system 1, a bogie transport path is configured by appropriately placing a bogie transport module M. Then, the bogie transport system 1 is configured such that the pin P of the bogie transport module M is raised and protruded from the floor surface, so that the pin P is engaged with the selected pin engaging portions 3 to 9 of the bogie 2. In this state, when the pin P is reciprocated in this state, the carriage 2 is moved along the carriage conveyance path along with the pin P. As shown in FIGS. 2 and 3, the carriage 2 has a base 10 that is formed in a U shape as a whole by cutting out one side of the square (the upper side in FIG. 2). Four swivel casters 11 are disposed on the lower surface of the base 10. Further, the cart 2 has bosses 12 to 15 erected downward (downward in FIG. 3) at the four corners of the lower surface of the base 10, and the cart transport module is disposed on end surfaces of the bosses 12 to 15. Pin engagement holes 3 to 6 with which M pins P can be engaged are respectively provided.

  Further, as shown in FIGS. 2 and 3, the carriage 2 includes the boss 12 and the boss 13 on the lower surface of the base 10, the boss 13 and the boss 14, and the boss 14 and the boss 15. There are provided skirts 16, 17, and 18, respectively, and pin engagement grooves 7 to 9 on which the pins P of the carriage transport module M can be engaged and slid are formed on end surfaces of the skirts 16 to 18. Each is provided. The pin engagement grooves 7 to 9 are on the line connecting the center of the pin engagement hole 3 and the center of the pin engagement hole 4, and the center of the pin engagement hole 4 and the center of the pin engagement hole 5. It is provided on the line segment that connects the center of the pin engagement hole 5 and the center of the pin engagement hole 6, respectively. The end surfaces of the bosses 12 to 15 and the end surfaces of the skirts 16 to 18 are at the same height from the floor surface with the wheels of the casters 11 grounded to the horizontal floor surface. Furthermore, each pin engaging hole 3-6 and each pin engaging groove 7-9 are diameter-expanded in the opening part in the taper shape. Next, the structure of the cart transport module M will be described in detail. 1 has the same basic structure except for the carriage transport module M5, only the carriage transport module M1 will be described in detail here.

  As shown in FIGS. 4 and 5, the carriage transport module M1 includes a main body 19 formed in a long box shape, and pins P1 and P2 at both ends of the main body in the longitudinal direction (left and right directions in FIGS. 4 and 5). The upright pin base 20 is accommodated. Further, the carriage transport module M1 is supported so that the pins P1 and P2 can be moved up and down by a pin guide 21 accommodated in the upper surface opening 19a of the main body 19. Further, as shown in FIG. 7, the carriage transport module M <b> 1 has the lower surface of the pin guide 21 provided on the upper part of the inner side surface on both sides in the width direction of the main body 19 (left and right direction in FIG. 7). Two sets of slide guides 22 are slidably supported by the upper surfaces 22a of the pair of guide beams 22 extending parallel to each other in the direction width direction (the direction of the paper in FIG. 7), and disposed on the lower surface 21a of the pin guide 21. The pair of guide rollers 23 abut against each side end surface 22b of the pair of guide beams 22 so as to allow rolling. 4 and 6, the carriage transport module M1 includes a guide rail 24 that extends horizontally in the longitudinal direction of the main body 19 in the main body 19, and the guide rail 24 is connected to the pin base 20 as shown in FIG. Is pressed by two pairs of guide rollers 25 arranged on one side surface (right side surface in FIG. 6).

  As shown in FIGS. 4 and 5, the carriage transport module M1 has sprockets 26 and 27 disposed at both ends in the longitudinal direction inside the main body 19 (left and right direction in FIGS. 4 and 5). One end of each of the sprockets 26 and 27 is connected to one end of the pin guide 21 (the right end in FIGS. 4 and 5) and the other end is the other end of the pin guide 21 (see FIGS. 4 and 5). The crawler belt 28 connected to the right end portion 5 is wound. In the cart transport module M 1, the crawler belt 28 is driven by driving the sprocket 26 on the driving side by an electric motor 29 attached to one side surface (lower surface in FIG. 4) of the main body 19. The pin guide 21 is guided by a pair of guide beams 22 and reciprocated in the longitudinal direction of the main body 19. Thereby, in the cart transport module M1, the pin base 20 is guided by the guide rail 24, and the pins P1 and P2 are reciprocated in the longitudinal direction of the main body 19 along with the pin guide 21. ing.

  As shown in FIGS. 4, 6, and 8, the carriage transport module M <b> 1 includes a link mechanism 30 including the guide rail 24, and the link mechanism 30 is provided on one side of the main body 19. By being driven by an air cylinder 31 (actuator) provided, the pins P1 and P2 are guided by the pin guide 21 and moved up and down. The link mechanism 30 is rotatably supported on one side surface (the right side surface in FIG. 6) of the main body 19 and has a plurality of shafts 32 arranged on the same horizontal plane and parallel to each other. Each shaft 32 has a base portion of the inner link plate 33 fixed to one end portion (an end portion inside the main body 19) and a base portion of the outer link plate 34 fixed to the other end portion (an end portion outside the main body 19). Each inner link plate 33 and each outer link plate 34 are provided on each shaft 32 so as to form a predetermined angle phase around the axis of each shaft 32. Further, the link mechanism 30 is arranged at the tip of each outer link plate 34 in parallel with each shaft 32 and is projected to the outside (right side in FIG. 6) with respect to the main body 19. 35 is provided.

  As shown in FIGS. 6 and 9, each outer link pin 35 is rotatably fitted in each link hole arranged in a row on a horizontally disposed link bar 36. As shown in FIGS. 4, 6, and 8, the link mechanism 30 is disposed at the distal end portion of each inner link plate 33 in parallel with each shaft 32 and on the inner side with respect to the main body 19. Each inner link pin 37 is provided so as to protrude (left side in FIG. 6). Each inner link pin 37 is rotatably fitted in each link hole arranged in a row on the guide rail 24 arranged horizontally. As shown in FIG. 9, the tip of the piston rod 31 a of the air cylinder 31 with the base portion rotatably attached to the link rod 36 of the link mechanism 30 rotates about the axis of the pin 38. Connected as possible. As shown in FIGS. 10 and 11, the carriage transport module M <b> 1 is configured such that each inner link plate 33 is the axis of each shaft 32 in a state where the piston rod 31 a of the air cylinder 31 is positioned at the retracted end position. The angular phase is positioned around 0 degrees.

  In the state shown in FIGS. 10 and 11, the carriage transport module M <b> 1 has the guide rail 24 positioned at the lower end position, and corresponds to the vertical direction of the guide rail 24 (the vertical direction in FIG. 10). When the pin base 20 that is moved up and down is positioned at the lower end position, the pins P1 and P2 erected on the pin base 20 are retracted from the floor surface (the upper surface of the pin guide 21). It has a structure (not protruding). Then, in the carriage transport module M1, the piston rod 31a of the air cylinder 31 is extended in the state shown in FIGS. 10 and 11, so that each outer link plate 34 is shown around the axis of each shaft 32. 11 is rotated counterclockwise by a predetermined angle phase, and each inner link plate 33 is rotated around the axis of each shaft 32 by a predetermined angle phase clockwise in FIG. . Accordingly, as shown in FIG. 8, the cart transport module M <b> 1 has the guide rail 24 positioned at the ascending end position and is moved up and down according to the vertical position of the guide rail 24. Is positioned at the rising end position so that the pins P1 and P2 erected on the pin base 20 protrude from the floor surface (the upper surface of the pin guide 21).

  As shown in FIG. 9, in the state where the piston rod 31a of the air cylinder 31 is extended, the carriage transport module M1 extends the piston rod 31a relative to the state where each outer link plate 34 stands. It is tilted in the direction (left side in FIG. 9). Thereby, in the said trolley | bogie conveyance module M1, even if it is a case where supply of the compressed air to the air cylinder 31 is stopped unexpectedly, the link mechanism 30 is mechanically locked, and each pin P1, P2 is the rising end. It is structured to be held in place. Further, as shown in FIG. 6, the carriage transport module M1 is provided with a position detection dog 39 on the lower surface 21a of the pin guide 21, and appropriately on the other side surface (the left side surface in FIG. 6) of the main body 19. A position detection sensor S (proximity switch) is provided, and the electric motor 29 is controlled based on the detection signal of the position detection sensor S.

  Next, the operation of the bogie transport system 1 shown in FIG. 1 will be described. In the cart transport system 1, the cart transport modules M1, M6, and M7 are of a type in which two pins P that can be moved up and down are reciprocated, and the cart transport modules M2, M3, and M4. Is a type in which one pin P that can be moved up and down is reciprocated, and the carriage transport module M5 is a type that has one pin that can be moved up and down fixedly. First, in the state shown in FIG. 12, the carriage 2 is in the first station ST1 of the carriage transportation system 1, and the pin P3 positioned at the retracted end position of the carriage transportation module M2 is the pin engagement groove 7 (pin engagement groove 7). And the pin P4 positioned at the retracted end position of the carriage transport module M3 is engaged with the pin engaging hole 4 (pin engaging portion). In this state, the pins P3 and P4 are simultaneously advanced at the same speed (moved to the right in FIG. 12), whereby the carriage 2 is moved toward the second station ST2 along with the pins P3 and P4. Is done.

  And if the detection signal of position detection sensor S4 provided in the trolley transport module M2 is detected in the process of moving the trolley 2 toward the second station ST2, the electric motor 29 of the trolley transport module M2 is decelerated and controlled. The moving speed of the pin P3 is lower than that of the pin P4. Accordingly, the carriage 2 is moved toward the second station ST2 while rotating in the counterclockwise direction in FIG. Then, when the detection signals of the position detection sensor S5 provided in the cart transport module M2 and the position detection sensor S7 provided in the cart transport module M3 are detected, the pins P3 and P4 are stopped, as shown in FIG. In addition, each pin P3, P4 is stopped at the forward end position. Next, the pin P5 positioned at the retracted end position of the carriage transport module M4 is raised and engaged with the pin engaging groove 8 of the carriage 2, and the pin P6 of the carriage conveyance module M5 is raised to raise the pin of the carriage 2. After being engaged with the engagement hole 5, the pins P3 and P4 are lowered. The pins P3 and P4 are lowered and moved backward (moved leftward in FIG. 13), stopped when the detection signals of the position detection sensors S3 and S6 are detected, and moved to the respective backward end positions. Positioned.

  In this state, as shown in FIG. 14, when the pin P5 is moved forward (moved downward in FIG. 14), the carriage 2 is rotated around the pin P6 in the clockwise direction in FIG. Then, the detection signal of the position detection sensor S9 is detected, and as shown in FIG. 15, the pin P5 is stopped at the forward end position, whereby the carriage 2 is positioned at the second station ST2. Next, each pin P7 positioned at the retracted end position of the carriage transport module M6 is raised and engaged with the pin engaging groove 7 of the carriage 2, and the pin P8 is raised to raise the pin engaging hole 4 of the carriage 2. After being engaged, the pins P5 and P6 are lowered. The pin P5 is lowered and moved backward (moved upward in FIG. 15), stopped when the detection signal of the position detection sensor S8 is detected, and positioned at the backward end position. In this state, when the pins P7 and P8 of the cart transport module M6 are moved forward (moved downward in FIG. 15), the cart 2 is moved toward the third station ST3 along with the pins P7 and P8. Is done.

  Then, as shown in FIG. 16, when the detection signal of the position detection sensor S11 of the carriage transport module M6 is detected and the pins P7 and P8 are stopped at the forward end position, the carriage 2 is positioned at the third station ST3. Is done. Next, the pin P9 positioned at the retracted end position of the carriage transport module M7 is raised and engaged with the pin engaging groove 8 of the carriage 2, and the pin P10 is raised to enter the pin engaging hole 5 of the carriage 2. After being engaged, the pins P7 and P8 are lowered. The pins P7 and P8 are lowered and moved backward (moved upward in FIG. 16), stopped when the detection signal of the position detection sensor S10 is detected, and positioned at the respective backward end positions. . In this state, when the pins P9 and P10 of the carriage transport module M7 are moved forward (moved leftward in FIG. 16), the carriage 2 is moved toward the fourth station ST4 along with the pins P9 and P10. Is done. Then, as shown in FIG. 16, when the detection signal of the position detection sensor S13 of the carriage transport module M7 is detected and the pins P9 and P10 are stopped at the forward end position, the carriage 2 is positioned at the fourth station ST4. Is done.

  Next, the pin P1 positioned at the retracted end position of the carriage transport module M1 is raised and engaged with the pin engagement groove 9 of the carriage 2, and the pin P2 is raised to the pin engagement hole 6 of the carriage 2. After being engaged, each pin P9, P10 is lowered. Each pin P9, P10 is lowered and then retracted (moved in the right direction in FIG. 16), stopped when the detection signal of the position detection sensor S12 is detected, and positioned at each retracted end position. . In this state, when the pins P1 and P2 of the carriage transport module M1 are moved forward (moved upward in FIG. 16), the carriage 2 is moved toward the first station ST1 along with the pins P1 and P2. Is done. Then, as shown in FIG. 12, when the detection signal of the position detection sensor S2 of the carriage transport module M1 is detected and the pins P1 and P2 are stopped at the forward end position, the carriage 2 is positioned at the first station ST1. Is done. Next, the pin P3 positioned at the retracted end position of the carriage transport module M2 is raised and engaged with the pin engagement groove 7 of the carriage 2, and the pin P4 is raised to the pin engagement hole 4 of the carriage 2. After being engaged, each pin P1, P2 is lowered.

  The pins P1 and P2 are lowered and moved backward (moved downward in FIG. 12), stopped when the detection signal of the position detection sensor S1 is detected, and positioned at the respective backward end positions. . Further, the fact that the pins P1 to P10 (excluding P5) are in the descending end position is detected by a signal of a cylinder switch of each air cylinder 31 (actuator) of each cart transport module M1 to M7 (excluding M5). .

This embodiment has the following effects.
In this bogie transfer system 1, since the bogie transfer modules M1 to M7 are appropriately arranged to form the bogie transfer path, the degree of freedom of layout is high and the layout can be easily changed. In addition, even if a serious malfunction occurs in a specific cart transport module M1 to M7, it is possible to respond by replacing only the cart transport module in which the malfunction has occurred, and the system 1 can be quickly restored. By doing so, a decrease in productivity can be suppressed to the minimum. Furthermore, until the system 1 is restored, one worker can take action by backing up the specific cart transport modules M1 to M7.

  In addition, each carriage transport module M1 to M7 has a pin guide 21 and a crawler belt 28 whose upper surfaces are accommodated in the upper surface opening 19a of the main body 19 and located at the same level with respect to the floor surface, and each pin P1 to P10 is located on the floor. Since it is retracted with respect to the surface (accommodated in the pin guide 21), the unevenness of the floor surface is eliminated and a full flat floor is realized, so that the safety of the work environment can be ensured. Furthermore, parts, tools, etc. dropped on the floor surface are not caught, and the reliability of the system is ensured. Moreover, since each trolley | bogie conveyance module M1-M7 can set a height dimension low, a deep pit is unnecessary and construction cost is cheap.

  Further, in the bogie transport system 1, the bogie 2 is provided with a plurality of pin engaging portions (the pin engaging holes 3 to 6 and the pin engaging grooves 7 to 9), and the bogie transport modules M1 to M7. The pins P1 to P10 are raised as necessary and engaged with the selected pin engaging portion. Then, when the pins P1 to P10 engaged with the pin engaging portion of the carriage 2 are appropriately reciprocated, the carriage 2 is moved along with the pins P1 to P10 and conveyed on the carriage conveyance path. The Therefore, in this trolley transport system 1, the trolley 2 can be turned by the linear reciprocation of the pins P1 to P10 by appropriately selecting the pin engaging portions that engage the pins P1 to P10.

In addition, embodiment is not limited above, For example, you may comprise as follows.
In this cart transport system 1, each cart transport module M1 to M7 is arranged as shown in FIG. 1 to configure the cart transport path. However, depending on the situation, the cart transport module M having the required specifications is required in quantity. It is only necessary to appropriately arrange the cart conveyance path.

It is a top view of this bogie transport system. It is a bottom view of the trolley | bogie used for this trolley | bogie conveyance system. It is a front view of the trolley | bogie used for this trolley | bogie conveyance system. It is a top view of the trolley | bogie conveyance module used for this trolley | bogie conveyance system. It is an AA arrow line view of the trolley | bogie conveyance module used for this trolley | bogie conveyance system. It is a BB arrow line view of the trolley | bogie conveyance module used for this trolley | bogie conveyance system. It is CC arrow line view of the trolley | bogie conveyance module used for this trolley | bogie conveyance system. It is explanatory drawing which shows the main body inner side part of the link mechanism of the trolley | bogie conveyance module used for this trolley | bogie conveyance system, Comprising: It is a figure which shows the state which has a pin in a raise end position especially. It is explanatory drawing which shows the main body outer side part of the link mechanism of the trolley | bogie conveyance module used for this trolley | bogie conveyance system, Comprising: It is a figure which shows the state which has a pin in a raise end position especially. It is explanatory drawing which shows the main body inner side part of the link mechanism of the trolley | bogie conveyance module used for this trolley | bogie conveyance system, Comprising: It is a figure which shows the state which has a pin in a falling end position especially. It is explanatory drawing which shows the main body outer side part of the link mechanism of the trolley | bogie conveyance module used for this trolley | bogie conveyance system, Comprising: It is a figure which shows the state which has a pin in a falling end position especially. It is operation | movement explanatory drawing of this trolley | bogie conveyance system. It is operation | movement explanatory drawing of this trolley | bogie conveyance system. It is operation | movement explanatory drawing of this trolley | bogie conveyance system. It is operation | movement explanatory drawing of this trolley | bogie conveyance system. It is operation | movement explanatory drawing of this trolley | bogie conveyance system.

1 cart transport system, 2 carts, 3-6 pin engagement hole (pin engagement portion), 7-9 pin engagement groove (pin engagement portion), 19 body, 20 pin base, 21 pin guide, 24 guide rail , 26, 27 sprocket, 28 crawler belt, 30 link mechanism, 31 electric motor (actuator), M1 to M7 cart transport module

Claims (3)

A carriage transportation path configured by appropriately arranging a carriage transportation module including one or a plurality of pins that can move in and out of the floor surface and can reciprocate on the floor surface, and on the carriage transportation path A carriage having a pin engaging portion on which each pin is selectively engaged, and a carriage transport system comprising:
The pin engaging portion is configured by pin engaging holes arranged at four corners of the carriage and pin engaging grooves extending on straight lines connecting the pin engaging holes adjacent to each other. platform car transport system that characterized the Rukoto. A carriage transportation path configured by appropriately arranging a carriage transportation module including one or a plurality of pins that can move in and out of the floor surface and can reciprocate on the floor surface, and on the carriage transportation path A carriage having a pin engaging portion on which each pin is selectively engaged, and a carriage transport system comprising:
The carriage transport module is provided on the same plane with respect to the floor surface, the pin is supported so that the pin can be moved up and down, and is wound around a sprocket disposed at both ends of the main body, and one end portion is A crawler belt connected to one end portion of the pin guide and having the other end portion connected to the other end portion of the pin guide, and at least one of the sprockets disposed at both end portions of the main body is driven to rotate so that the crawler belt A crawler belt drive mechanism for driving the pin, and a pin lifting mechanism for lifting and lowering the pin supported by the pin guide, and the pin raised by the pin lifting mechanism is selected by the cart In this state, the crawler belt is driven by the crawler belt drive mechanism and the pin guide is reciprocated to move the carriage with the pin. Platform car transport system that characterized in that it is configured to be conveyed to the carriage conveyance path on which. The pin lifting mechanism includes a pin base on which the pin is erected, a guide rail that extends horizontally inside the main body and guides the pin base in a pin guide reciprocating direction, and between the guide rail and the actuator. And the link mechanism is driven by the actuator and the guide rail is moved up and down to move the pin base up and down in conjunction with the guide rail. The cart transportation system according to claim 2 , wherein the pins are moved up and down with respect to the pin guide.

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