JP2005246549A - Assembling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an assembling device capable of performing a facing work without performing a drastic foundation construction of a floor and without depending on an expensive self-running carriage. <P>SOLUTION: A plurality of jig carriages 3 are mutually and detachably connected by a connection means 4 and are arranged on an assembling line L. A chain 5 of a chain conveyor 6 arranged adjacently to a final assembling process A6 and the head jig carriage 3 are connected by a disengageable towing means 9. All the jig carriages 3 connected via the head jig carriage 3 are towed and are successively moved to each assembling process A1 to A6. The head jig carriage 3 is separated, while a new jig carriage 3 is added to the last jig carriage 3. Since the chain conveyor 6 as a carrying means is arranged adjacently to the final assembling process A6, both sides of the other assembling processes A1 to A5 are greatly opened, the facing work by a worker M is made possible, extensive reduction of the number of processes and extensive shortening of the assembling line L can be attained. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a carriage type assembly apparatus that performs assembly using a jig carriage.

  In addition to not requiring large-scale capital investment, bogie-type assembly equipment can be used relatively easily for production changes and process changes, so for example, it has been widely used for overseas production of automobile parts such as engines. It is coming. By the way, a conventional general bogie type assembly apparatus has a plurality of assembly steps in which a conveying means (chain conveyor) is arranged along an assembly line, and a necessary number of jig carts are set on the production line by the conveying means. It was structured to move sequentially.

As this type of trolley type assembly device, a pit is dug along the assembly line, and the conveying means is arranged in the pit, or the jig trolley is a self-propelled type. There is also a device (Patent Document 1) that self-travels along a traveling guide tape laid on the surface.
JP-A-6-329060

  However, according to the conventional general bogie type assembly apparatus described above, since the conveying means is arranged on one side of the assembly line, the assembling work can be performed only from the side opposite to the side where the conveying means is arranged. Therefore, there is a problem that an increase in the number of processes and an extension of the assembly line cannot be avoided. In addition, since the assembly line is extended, there is a problem that the conveying means is enlarged and much time and cost are required for the installation.

  On the other hand, in the case where the conveying means is arranged in the pit described above, or the one using a self-propelled carriage, work from both sides of the assembly line (face-to-face work) is possible. Can be resolved. However, in the former, in addition to the drastic foundation work of the floor, installation of the transportation means in the pit becomes troublesome and it is difficult to start up (operate) the equipment in the short term. . In the latter case, since the jig cart has to be equipped with various mechanisms for self-propelling, the jig cart itself is very expensive, and its maintenance is cumbersome and costly. .

  The present invention has been made in view of the above-described conventional problems, and the problem is that a face-to-face work can be performed without performing fundamental foundation work on the floor and without relying on an expensive self-propelled carriage. An object of the present invention is to provide an assembling apparatus that can make a significant contribution to the reduction of the process and the shortening of the assembly line.

  In order to solve the above problems, the present invention provides an assembly apparatus in which a plurality of jig carriages are sequentially moved by a conveying means to a plurality of assembly steps set on an assembly line, and necessary assembly is performed on the jig carriage. The plurality of jig carts are detachably coupled by a coupling unit, and the driving force of the conveying unit is transmitted to at least one of the coupled jig carts. In the assembling apparatus configured as described above, when one jig carriage is driven by the conveying means, all the jig carriages connected to each other are interlocked with the movement. Therefore, it is sufficient for the conveying means to have a drive stroke that can move one jig carriage between adjacent assembly processes. As a result, both sides of the assembly line are greatly opened, and face-to-face work is performed. It becomes possible.

  In the present invention, the conveying means may be provided in the final assembly process to transmit the driving force to the leading jig carriage. In this way, when the conveying means is provided in the final assembly process, both sides of the intermediate main assembly process are opened, so that the face-to-face work can be performed efficiently.

  Further, the transport means is not particularly specified in its structure, but it is desirable that the transport means is composed of a chain conveyor using a chain that rotates endlessly as a drive unit because it stably generates a large driving force. . In this case, the traction means for transmitting the driving force of the conveying means to the jig carriage is composed of a dog attached to the chain and a hook provided on the jig carriage so as to be detachable from the dog. Can do. Further, the transport means may be structured to include guide means for guiding the chain along the assembly line and guide means for guiding the jig carriage along the assembly line. It can be reliably engaged with the hook.

  In the present invention, a part shelf on which parts are placed may be arranged on the jig carriage, or a sub carriage on which tools are placed may be connected. In this case, the jig carriage is attached to the assembly line. The support frame for supporting the parts shelf and tools in a suspended manner can be reduced, and the entire apparatus becomes simpler.

  According to the assembling apparatus according to the present invention, it is possible to perform both-side work without performing drastic foundation work on the floor and without relying on an expensive self-propelled carriage when increasing or decreasing the number of productions or work types. Not only can the number be greatly reduced, but also a significant reduction in equipment costs can be achieved. Further, since the arrangement of jigs, parts shelves, tools, and the like is easy, a very flexible production line can be configured. Furthermore, since a small conveyance means can be used, the installation becomes easy and a short-term facility can be set up.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 shows the overall structure of an assembling apparatus according to the present invention. The assembling apparatus includes a plurality of jig carts 3 provided with a jig 1 for supporting a workpiece and a parts shelf 2 for placing small parts on the upper surface, connecting means 4 for connecting the jig carts 3 to each other, and endlessly. A chain conveyor (conveying means) 6 that transmits the driving force of the rotating chain 5 to the jig carriage 3 connected to each other and the jig carriage 3 can be attached to and detached from the jig carriage 3. A sub carriage 7 on which lightweight tools are mounted, and a portal frame 8 that supports heavy tools in a ceiling manner are schematically illustrated.

  In the present embodiment, the chain conveyor 6 is installed on the assembly line L adjacent to the final assembly step A6 among the plurality of assembly steps A1 to A6 set at a constant pitch. A detachable traction means 9 is disposed between the chain 5 of the chain conveyor 6 and each jig carriage 3, and the traction means 9 is engaged according to the rotation of the chain 5. The driving force of the chain 5 is transmitted to the leading jig carriage 3 among the jig carriages 3 connected by the connecting means 4. Then, by transmitting the driving force to the leading jig carriage 3, all the jig carriages 3 connected by the connecting means 4 are pulled on the assembly line L in the direction of arrow F at a constant speed, and each jig carriage 3 is connected. Sequentially move to assembly steps A1 to A6.

  Here, as shown in FIG. 2 to FIG. 6, each jig carriage 3 has the jig 1 and the parts shelf 2 mounted on a rectangular carriage body 11 having wheels 10 at the four corners of the lower surface. ing. A handle 12 is provided at the rear end of the carriage main body 11 on the rear side in the towing direction F, and the jig carriage 3 can be freely moved manually. As shown in FIG. 2, the jig 1 includes a base 13 fixed on the carriage main body 11 and a pair of support columns 14 detachably attached to the base 13 so as to be opposed to each other in the vehicle width direction. A jig piece 15 for receiving a workpiece is provided at the upper end of each column 14. The support column 14 including the jig piece 15 is dedicated to the work and is exchanged depending on the type of work. The parts shelf 2 has a structure having a plurality of storage portions 16a, 16b,... 16n in multiple stages, and the parts required in each assembly process A1 to A6 are sorted and stored in each stage 16a, 16b,. It has come to be.

  Further, a pair of hooks 20 (FIG. 3) constituting the connecting means 4 are provided at the rear end of the cart body 11, while the front end of the cart body 11 can be engaged with the pair of hooks 20. A pair of connecting bars 22 having an engaging groove 21 (FIG. 4) at the tip is provided. Further, a pair of positioning bars 23 are provided at the front end of the carriage main body 11 so as to be located outside the connection bar 22. The pair of positioning bars 23 serves to make the distance between the front and rear jig carts 3 constant, and the tips of the positioning bars 23 come into contact with the rear end of the front jig cart 3, thereby The engagement groove 21 at the distal end is positioned at an engageable position with respect to the hook 20, whereby the connection bar 22 and the hook 20 can be engaged.

  As is well shown in FIG. 4, the pair of connecting bars 22 is pivotally supported by a bracket 24 whose base end is fixed to the carriage body 11 using a common shaft 25, and the whole of the pair of connecting bars 22 is a shaft. It can swing up and down about 25 as a fulcrum. Therefore, a lever 26 is integrally provided on one of the pair of connecting bars 22 in an arrangement substantially perpendicular to the bar. A roller 27 is attached to the tip of the lever 26 that extends downward, and the lever 26 has an operating rod 28 that is slidably mounted on the carriage body 11 in the vehicle width direction. It is brought into contact with the cam 29 at the tip. That is, the connecting bar 22 is restricted from swinging downward by bringing the tip of the lever 26 into contact with the cam 29, and is always maintained in a substantially horizontal state. On the other hand, the hook 20 at the rear end of the cart body 11 is provided at a height position that interferes with the front end of the connecting bar 22 in the horizontal state. As a result, when the rear jig carriage 3 is moved closer to the front jig carriage 3 (advanced), the connecting bar 22 swings slightly upward with its tip abutting against the hook 20. The tip of 22 rides on the hook 20. On the other hand, the forward end of the connecting bar 22 is regulated by the positioning bar 23, and the connecting bar 22 stops moving immediately after its tip rides on the hook 20. As a result, the engaging groove 23 of the connecting bar 22 is positioned at an engageable position with respect to the hook 20, whereby the engaging groove 23 is automatically engaged with the hook 20 and the front and rear jig carts 3 are connected. Is completed (FIG. 3).

  On the other hand, the actuating rod 28 having the cam 29 at its tip is urged by a spring 30 and is always positioned at a retracted end that retreats to the side of the jig carriage 3. The cam 29 has a cam surface inclined to the front side in the pulling direction F. Now, when the operating rod 28 is advanced against the urging force of the spring 30, the lever 26 is moved along the cam surface of the cam 29. The roller 27 at the tip of the roller rolls. Then, the connecting bar 22 swings upward with the shaft 25 as a fulcrum, and as a result, the engaging groove 23 at the tip thereof is disengaged from the hook 20, and the connection between the front and rear jig carts 3 is released. Accordingly, the actuating rod 28, the cam 29, the spring 29, and the like constitute a connection release mechanism 31 that releases the connection by the connecting means 4. In the present embodiment, a connection release guide 31 'is installed on the floor that continues from the final assembly step A6 (see FIG. 7), and the operation rod 28 uses a roller 28a provided at the rear end thereof as the connection release guide. When the leading jig carriage 3 passes through the final assembly step A6, the engagement between the connecting bar 22 and the hook 20 is automatically released.

  By the way, in order to connect the front and rear jig carts 3, it is necessary to accurately position the hooks 20 and the connecting bars 22 constituting the connecting means 4 in the vehicle width direction. Therefore, in the present embodiment, as shown in FIGS. 5 and 6, a connection guide 32 having a predetermined length is arranged in parallel with the assembly line L on the inlet side of the first assembly step A <b> 1, and this connection guide 32. A pair of front and rear guide rollers 34 (see FIG. 2) provided on the side surface of the carriage main body 11 are engaged with the groove-shaped guide portion 33. That is, the jig carriage 3 is accurately positioned and guided in the vehicle width direction by engaging the guide roller 34 with the groove-shaped guide portion 33 of the connection guide 32. Therefore, now, at the stage where the last jig cart 3 is guided by the connection guide 32, the subsequent jig cart 3 is advanced while the guide roller 34 is engaged with the guide portion 33 of the connection guide 32. Then, since the front and rear jig carts 3 are accurately positioned in the vehicle width direction, the connecting bar 23 of the subsequent jig cart 3 is accurately positioned on the hook 20 of the front jig cart 3. The new jig carriage 3 is smoothly added to the last jig carriage 3 by engaging.

  In the present embodiment, a connection release prevention mechanism 35 is provided at the rear end of the carriage main body 11 so that the connection between the jig carriages 3 pulled by the chain conveyor 6 is not inadvertently released. Yes. As shown in FIGS. 3 and 5, the disengagement prevention mechanism 35 is fixed to the operating rod 36 slidably mounted on the carriage body 11 in the vehicle width direction, and fixed to the tip of the operating rod 36. It comprises an L-shaped stopper member 37 and a spring 38 that normally biases the operating rod 36 in the backward direction (side of the jig carriage 3). The standing height of the stopper member 37 is set so that the leg piece 37 a on the upper end side is positioned at a position where it slightly contacts the upper surface of the hook 20. In this disengagement prevention mechanism 35, the operating rod 36 is normally positioned at the retracted end by the spring 38, so that the leg piece 37 a (FIG. 5) of the stopper member 37 covers the upper surface of the hook 20. The detachment of the 23 from the hook 20 is prevented.

  As shown in FIG. 5, the connection guide 32 is also provided with a stopper release guide 39 located below the guide portion 33, and the stopper release guide 39 includes the connection release prevention mechanism. A roller 36a provided at the rear end of the 35 actuating rods 36 can be contacted. The actuating rod 36 moves forward against the urging force of the spring 38 by bringing the roller 36a at the rear end into contact with the stopper release guide 39, whereby the leg piece 37a of the stopper member 37 escapes from the upper surface of the hook 20. As a result, the connection bar 22 can be detached from the hook 20. The stopper release guide 39 is in a position where it engages with the actuating rod 36 before the timing when the connecting bar 23 of the succeeding jig carriage 3 is engaged with the hook 20 at the rear end of the rearmost jig carriage 3. Therefore, the stopper member 37 does not obstruct the operation of the connecting means 4 that connects the front and rear jig carts 3. The above-described connection release guide 31 ′ (FIG. 7) is also used as the stopper release guide 39, and the stopper member 37 is automatically turned on when the leading jig carriage 3 passes through the final assembly step A6. Retreat.

  Moreover, the connection means 40 for connecting the said sub trolley | bogie 7 so that attachment or detachment is possible is arrange | positioned at the front end of the trolley | bogie main body 11 which comprises each jig trolley | bogie 3. FIG. As shown well in FIG. 4, the connecting means 40 is composed of upper and lower hooks 41 and 43 that are arranged in two stages with their positions shifted in the traction direction F, and these include the front side in the traction direction F. U-shaped cutouts 42 and 44 are provided. On the other hand, two shafts 47, 48 that can be independently engaged with the notches 42, 44 of the upper and lower hooks 41, 43 using a bracket 46 are provided on the side surface of the carriage main body 45 that constitutes the sub carriage 7. Is provided. The sub cart 7 has its two shafts 47 and 48 engaged with the notches 42 and 44 in the upper and lower hooks 41 and 43 on the jig cart 3 side, respectively. Removably connected. Four wheels 49 are provided on the lower surface of the carriage main body 45 of the sub carriage 7, and the sub carriage is connected to the jig carriage 3 via the upper and lower hooks 41 and 43 and the shafts 47 and 48. 7 moves in the towing direction F integrally with the jig carriage 3. The connecting means 40 is provided on both sides of the carriage main body 11 of the jig carriage 3, and two sub carriages 7 are connected to the jig carriage 3 as required (FIG. 1).

  As shown in FIGS. 7 to 9, the quoting chain 5 constituting the chain conveyor 6 is wound around a sub drive sprocket 51 and a sub driven sprocket 52 disposed in the chain box 50. . Each of the sub-drive sprocket 51 and the sub-driven sprocket 52 is attached to rotating shafts 55 and 56 that are rotatably supported by upper and lower bearings 53a, 53b, 54a, and 54b. On the other hand, a motor box 57 arranged adjacent to the chain box 50 is provided with a motor (helical gear motor) 58 and a main drive sprocket 59 that is rotationally driven by the motor 58. A main driven sprocket 60 is attached to the upper end portion of the rotary shaft 55 on the side of the sub drive sprocket 51, and a chain 61 is wound around the main driven sprocket 60 and the main drive sprocket 59. That is, the quotation chain 5 rotates endlessly between the two sprockets 51 and 52 by transmitting the rotation of the motor 58 to the rotating shaft 55 via the main drive sprocket 59, the chain 61 and the main driven sprocket 56. It is supposed to be.

  A large number of pairs of rollers 62 are attached to the quoting chain 5 at a predetermined pitch. As shown in FIGS. 8 and 9, these roller pairs 62 are moved and guided by a pair of left and right U-shaped rails 63 disposed in the chain box 50. No. 5 is configured to rotate smoothly and stably without causing lateral vibration and vertical vibration. The roller pair 62 and the U-shaped rail 63 constitute guide means for moving and guiding the chain 5 along the assembly line L.

  A plurality (four in this case) of quoting dogs 64 are attached to the quoting chain 5 at a predetermined pitch. As shown in FIG. 9, the towing dog 64 includes a triangular substrate 67 fixed to a support plate 65 integral with a link constituting the chain 5 using bolts 66, and a tip portion of the substrate 67. And a columnar block 69 fixed with bolts 68. On the other hand, on one side surface of the carriage main body 11 constituting the jig carriage 3, a plurality of (here, two) hooks 70 that can be engaged with the dog 64 are arranged at the same interval as the arrangement pitch of the dog 64. It is fixed. As shown in FIGS. 2 to 6 and 10, the hook 70 has a stopper surface 71 that rises downward on the front side in the pulling direction F. The block 69 comes into contact. That is, the traction dog 64 enters the hook 70 from the rear side in the traction direction F according to the rotation of the chain 5 and comes into contact with the stopper surface 71, whereby the driving force (traction force) of the chain 5 is generated. This is transmitted to the leading jig cart 3 via the dog 64 and the hook 70. A swing stopper 72 is also attached to the hook 70 using a pin 73. The stopper 72 can freely rotate counterclockwise as seen in FIG. 10, but is restricted from rotating clockwise. Accordingly, the dog 64 is allowed to enter the hook 70, but when the dog 64 moves (retreats) in the direction opposite to the pulling direction F relative to the jig carriage 3, the dog 72 moves the dog 64. 64 is prevented from retreating, thereby preventing the towing dog 64 from inadvertently leaving the hook 70.

  Here, on the side surface of the chain box 50 facing the assembly line L, a guide guide (guide means) 75 similar to the connection guide 32 (FIG. 6) provided on the inlet side of the first assembly step A1 is attached. Has been. As shown in FIG. 9, the guide guide 75 includes a groove-shaped guide portion 71 like the connection guide 32, and the guide provided on the side surface of the jig carriage 3 on the groove-shaped guide portion 71. A roller 34 is engaged. The jig carriage 3 is accurately positioned in the vehicle width direction by engaging the guide roller 34 with the groove-shaped guide portion 76 of the guide guide 75.

  Hereinafter, the operation of the assembling apparatus configured as described above will be described by taking as an example the case of assembling an automobile engine.

  In this embodiment, since the chain conveyor 5 is installed adjacent to the final assembly process A6, both sides of the assembly line L are opened in the assembly processes A1 to A5 excluding the final assembly process A6. As a result, in assembly steps A1 to A5, assembly by face-to-face work is possible. In FIG. 1, M indicates workers assigned to the assembly steps A1 to A6. Here, the assembly steps A2 to A5 are face-to-face operations. Further, an accessory part arrangement zone B is set to the side of the first assembly step A1, and one or more sub-assembly zones C and D are set to the side of the assembly line L. In the case of engine assembly, the sub-assembly zone C is configured as a piston assembly zone, and the sub-assembly zone D is configured as a head assembly zone.

  When assembling the engine, in advance, empty jig carts 3 with no workpieces are connected to the assembly line L by the required number of connecting means 4 and the leading jig cart 3 is finally assembled. Next to the chain conveyor 6 adjacent to the step A6. After completion of the preparation, when the motor 58 in the chain conveyor 6 serving as a conveying means is started, the quoting chain 5 rotates endlessly, and the quoting dog 64 attached to the chain 5 is attached to the leading jig carriage 3. Engage with the hook 70. As a result, the driving force of the chain 5 is transmitted to the leading jig carriage 3, and all the jig carriages 3 connected by the connecting means 4 are pulled in the pulling direction F on the assembly line L accordingly. During this time, a charged jig carriage 3 is prepared in which a workpiece is placed and fixed on the jig piece 15 (FIG. 2) of the jig 1, and the last of the empty jig carriage 3 is provided. At the timing when the jig carriage 3 moves to the assembly step A1, the filled jig carriage 3 is connected to the last jig carriage 3 by the connecting means 4. At this time, as described above, the connecting means 4 is operated while guiding both the jig carriages 3 by the connecting guide 32 (FIG. 6). On the other hand, the leading empty jig carriage 3 is pushed out from the final assembly step A6, and at this time, the connection release prevention mechanism 35 of the connection release prevention mechanism 35 is connected to the connection release guide 31 '(also the stopper release guide 39) shown in FIG. The operation rod 36 and the connection release operation rod 28 are engaged, whereby the stopper member 37 is retracted and the connection bar 22 is swung upward, so that the leading jig carriage 3 is separated from the subsequent jig carriage 3. It is. It should be noted that the plurality of towing dogs 64 on the chain 5 are related to the leading jig cart 3 by the dog 64 leading in the towing direction F depending on the relative positional relationship between the chain conveyor 6 and the leading jig cart 3. The other dogs 64 may engage with the subsequent jig carriage 3 in the combined state.

  After that, at the timing when the last jig cart 3 moves to the first assembly step A1, the next jig cart 3 in the full state is sequentially connected, whereby all the empty jig carts 3 are in the full state. The jig carriage 3 is replaced, and the filled jig carriage 3 sequentially moves to the assembly steps A1 to A6 at a constant speed. In the case of engine assembly, the work placed and fixed on the jig piece 15 of the jig carriage 3 is a cylinder block (or block subassembly). In each of the assembling steps A1 to A6, necessary parts for the cylinder block are used. Assembly is performed. In the present embodiment, one side of the assembly step A1 is provided as a small component arrangement space, and in the assembly step A1, necessary small components are delivered from the arrangement zone B to the component shelf 2 on the jig carriage 3. . Further, in the assembly process A3, assembly is performed using a ceiling-suspended tool (nut nut etc.) provided on the portal frame 8. Further, in the assembly process A4 and the assembly process A5, one or two sub-carts 7 are connected to the jig cart 3 using the connecting means 40, and necessary parts are used using the tools on the sub cart 7. Assembly is performed.

  The automobile engine is completed while the jig carts connected in this way pass through a series of assembly steps A1 to A6, but most of the assembly steps (assembly steps A2 to A5) are face-to-face operations. Therefore, the work content in one assembling process is enhanced, and the assembling process is greatly reduced as compared with the case of a conventional general bogie type assembling apparatus on which one-side work is premised. Since the assembly process is reduced, the assembly line L is greatly shortened, and the installation space for the assembly apparatus can be greatly reduced. Further, the chain conveyor 6 as the conveying means is sufficient if it has a driving stroke that can move one jig carriage 3 between adjacent assembly processes. Become. As a result, the installation of the chain conveyor 6 becomes simple and the equipment can be started up in a short period of time.

  In this embodiment, in particular, the roller pair 62 attached to the chain 5 of the chain conveyor 6 is engaged with the U-shaped rail 63 to prevent the chain 5 from sideways and vertically, and the guide roller of the jig cart 3 34 is engaged with the groove-shaped guide portion 76 of the guide guide 75 to accurately position the jig carriage 3 in the vehicle width direction (FIGS. 7 to 9). The hook 70 on the cart 3 side can be reliably engaged, and the traction force of the chain conveyor 6 can be reliably transmitted to the jig cart 3. Moreover, the leading jig carriage 3 is restrained in the vehicle width direction by the guide guide 75, and the last jig carriage 3 is restrained in the vehicle width direction by the connection guide 32 (FIG. 6) on the inlet side of the assembly line L. Therefore, the plurality of jig carts 6 that are connected to each other move without meandering on the assembly line L, whereby the assembly operation can be stably performed in each of the assembly steps A1 to A6. .

  In the above embodiment, the chain conveyor 6 as a conveying means is installed adjacent to the final assembly process A6. However, the installation place of the chain conveyor 6 is arbitrary, and adjacent to the first assembly process A1. Alternatively, it may be installed adjacent to the intermediate assembly processes A2 to A5, or may be installed between the processes. In the above embodiment, the connection guide 32 or the guide guide 75 for positioning the jig carriage 3 in the vehicle width direction is installed on the inlet side of the assembly line L and the final process A6. Other means that can be positioned in the vehicle width direction of the jig carriage 3 over the entire length, such as a guide rail, can be used.

It is a schematic diagram which shows the whole structure of the assembly apparatus which concerns on this invention. It is a perspective view which shows the whole structure of the jig trolley which comprises this assembly apparatus. It is a perspective view which shows the connection structure of this jig trolley | bogie. It is a perspective view which shows the connection structure of this jig trolley | bogie. It is a front view which shows the guide means which guides this jig trolley | bogie, and a connection release prevention mechanism. It is a top view which shows the connection state of this jig trolley | bogie, and the guide means utilized for the connection. It is a top view which shows the whole structure of a chain conveyor, and the relationship between a chain conveyor and a jig trolley | bogie. It is a front view which shows a part of chain conveyor. It is a front view which shows a part of chain conveyor. It is a front view which shows the structure of the hook with which a jig trolley is equipped.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Jig 2 Parts shelf 3 Jig trolley 4 Connection means 5 Towing chain 6 Chain conveyor (conveyance means)
7 Sub-trolley 9 Pulling means 11 Bogie body 20 Connecting hook 22 Connecting bar 23 Positioning bar 26 Lever 31 Connection release mechanism 32 Connection guide 35 Connection release prevention mechanism 62 Roller pair (guide means on the chain side)
63 U-shaped rail (guide means on the chain side)
64 quoting dog 70 hook 75 guidance guide (guide means)
L Assembly line

Claims (6)

  In an assembling apparatus that moves a plurality of jig carriages sequentially to a plurality of assembly steps set on an assembly line by a conveying means and performs necessary assembly on the jig carriage, the plurality of jig carriages are detached by connecting means. An assembling apparatus characterized in that the connecting means is capable of being connected and the driving force of the conveying means is transmitted to at least one of the plurality of connected jig carts.   The assembling apparatus according to claim 1, wherein the conveying means is provided in the final assembling step to transmit the driving force to the leading jig carriage.   The conveying means comprises a chain conveyor having an endlessly rotating chain as a drive unit, and means for transmitting the driving force of the conveying means to the jig carriage is attached to the quoting dog attached to the chain and the jig carriage. The assembly apparatus according to claim 1, further comprising a hook that is detachably attached to the dog.   4. The assembly apparatus according to claim 3, wherein the conveying means includes guide means for moving and guiding the chain along the assembly line and guide means for moving and guiding the jig carriage along the assembly line.   The assembly apparatus according to any one of claims 1 to 4, wherein a parts shelf on which parts are placed is disposed on the jig carriage. 6. The assembly apparatus according to claim 1, wherein a sub-carriage on which tools are placed is detachably connected to the jig carriage.

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