JP4766614B2 - Parts assembly equipment - Google Patents

Description

  The present invention enables the first and second parts to be assembled to each other to be transported in parallel and in one direction, respectively, and in these transported states, for the convenience of the assembly work, the first and second parts can be transported. The present invention relates to a component assembling apparatus in which the relative positions of two components in the above-mentioned one direction become a desired relative position.

  Conventionally, the above-described component assembling apparatus is disclosed in Patent Document 1 below. According to this publication, among the first component and the plurality of second components to be assembled with each other, the first conveyance line that allows the first component to be conveyed in the one direction at the first conveyance speed; A second transfer line is provided which extends in parallel with the first transfer line and enables the second parts to be transferred in the one direction at the second transfer speed.

The first and second parts are assembled to each other while the first and second parts are being conveyed by the first and second conveyance lines.
JP-A-5-69253

  By the way, in the prior art, it is assumed that the first part transported by the first transport line and the part of each of the second parts transported by the second transport line are mutually in the one direction. Is assumed to be a desired relative position for the convenience of the assembly work. Then, there is a possibility that the relative position between the first part transported by the first transport line and the other part of the second parts transported by the second transport line becomes an undesired relative position. is there. In this case, there arises a disadvantage that the work of assembling the first part and the other part of the second part becomes complicated.

  The present invention has been made paying attention to the above situation, and an object of the present invention is to enable the first and second parts to be transported in parallel and in one direction, respectively. In the state, when the first and second parts are assembled to each other, the assembling work can be easily performed.

According to the first aspect of the present invention, among the first part 3 and the plurality of second parts 4 to be assembled with each other, the first part 3 can be transported toward the one direction A at the first transport speed V1. A first transport line 26 and a second transport line 27 extending in parallel with the first transport line 26 and capable of transporting the second components 4 toward the one direction A at the second transport speed V2. In the component assembly apparatus in which each of the first component 3 and the second component 4 is sequentially assembled in a plurality of assembly areas sequentially set in the one direction A,
The relative positions of the first part 3 transported by the first transport line 26 and the second part 4 transported by the second transport line 27 in the one direction A are respectively in the respective assembly areas. The component assembling apparatus is characterized in that the relative speed between the first and second components 3 and 4 is variable so as to be changeable.

The invention according to claim 2 is the component assembling apparatus according to claim 1, wherein the second transfer line 27 is disposed above the first transfer line 26 .

Invention 請 Motomeko 3 includes a first position sensor 96 for detecting the position in the first part 3 of the one direction A to be conveyed by the first conveying line 26, each carried by said second conveying line 27 A second position sensor 97 for detecting the position of any one of the second parts 4 in the one direction A is provided in each of the assembly areas, and the first and second position sensors 96, 97 are provided. The relative positions of the first and second position sensors 96 and 97 in the one direction A are determined based on the detection signal. The component assembling apparatus according to claim 1 , wherein the position can be changed in each of the assembling areas.

According to a fourth aspect of the present invention, there is provided a carrier 60 that removably supports each of the second parts 4 and that can be transported by the second transport line 27, and the front end of the second transport line 27 in the one direction A. The carrier 60 transported to the side moves forward D so as to transport toward the rear end side of the second transport line 27, while the carrier 60 moves from the rear end side to the front end side of the second transport line 27. A self-propelled vehicle 72 that moves backward E in the non-conveyed state is provided, and the second parts 4 are supported by the carrier 60 conveyed by the self-propelled vehicle 72 during the forward movement D of the self-propelled vehicle 72. The component assembling apparatus according to any one of claims 1 to 3 , wherein the component assembling apparatus is made possible.

According to a fifth aspect of the present invention, when the self-propelled vehicle 72 rotates around the ring-shaped track 73, the self-propelled vehicle 72 performs the forward and backward movements D and E described above. Forward and backward movements F and H and backward movements G and I in the lateral direction from above the virtual extension lines 75 and 80 on the front and rear end sides in the adjacent area on the front and rear end sides of the transport line 27 toward the track 73. , according to claim 4, characterized in that the front of the second conveying line 27, provided with a modified device 77,82 put enabling recombinant carrying the carrier 60 between the rear end and the self-propelled vehicle 72 This is a component assembly apparatus.

  In this section, the reference numerals appended to the above terms are not to be construed as limiting the technical scope of the present invention to the section “Example” described later or the contents of the drawings.

  The effects of the present invention are as follows.

The invention according to claim 1 is a first transport line that enables the first part to be transported in one direction at a first transport speed among the first part and the plurality of second parts to be assembled with each other; A plurality of second conveying lines that extend in parallel with the first conveying line and that allow the second parts to be conveyed at the second conveying speed in the one direction, and are sequentially set in the one direction. In the part assembly apparatus in which each of the first part and the second part is sequentially assembled in the assembly area of
The relative positions of the first component conveyed by the first conveying line and the second component conveyed by the second conveying line in the one direction can be changed in the respective assembling areas. A component assembling apparatus wherein the relative speed between the first and second components is variable.

Therefore, by changing the relative speed between the first and second parts , the first and second parts to be assembled with each other in the respective assembling areas can be set to desired relative positions. Further, any other second component is moved to the relative position so as to be separated in the one direction with respect to the first and second components, so that the other second component is connected to the first and second components. It can also be made not to get in the way of assembly. Therefore, according to the component assembling apparatus, it is possible to easily assemble the first and second components.

  A second aspect of the present invention is the component assembling apparatus according to the first aspect, wherein the second transfer line is disposed above the first transfer line.

For this reason, for example, when various parts (each second part) are assembled to the vehicle body (first part) from above, as in the normal assembly work of a motorcycle, the parts assembling apparatus described above. If this is applied, the assembly work of the motorcycle can be very easily performed .

Invention 請 Motomeko 3 has a first position sensor for detecting the position in the direction of the first component to be conveyed by the first conveying line, of the second component to be conveyed by the second conveying line A second position sensor for detecting the position of any one of the second parts in the one direction is provided in each of the assembly areas, and based on the detection signals of the first and second position sensors, The relative position of the first part and the second part is determined, and the relative position of the first and second position sensors in the one direction can be changed in each of the assembling areas. Item 3. The component assembling apparatus according to Item 1 or 2 .

  For this reason, when it is intended to obtain a desired relative position between the first part and any one of the second parts in each of the above assembling areas, It is only necessary to physically change the relative positions of the second position sensors. Therefore, also in this respect, the work of assembling the first and second parts can be facilitated.

According to a fourth aspect of the present invention, there is provided a carrier that removably supports each of the second parts and is transportable by the second transport line, and is transported to the front end side in the one direction of the second transport line. Self-propelled that moves forward so as to transport the carrier toward the rear end side of the second transport line, and moves backward without moving the carrier from the rear end side to the front end side of the second transport line. the car is provided, the forward during the movement of the self-propelled vehicle, any one of claims 1 to 3, characterized in that to the carrier being transported allowed supporting the respective second component by the self-propelled vehicle It is a component assembly apparatus as described in one.

  Here, the movement position of the self-propelled vehicle is easy to set freely. Therefore, during the forward movement of the self-propelled vehicle, the forward movement position of the self-propelled vehicle is convenient for supporting the second parts with respect to the carrier conveyed by the self-propelled vehicle. Can be easily set at a desired position. Therefore, also in this respect, the above assembling work can be facilitated.

According to a fifth aspect of the present invention, the self-propelled vehicle rotates around a ring-shaped track so that the self-propelled vehicle moves forward and backward as described above, before and after the second transport line. From the front and rear virtual extension lines in the adjacent area on the end side, move in the lateral direction toward the track and move backward, between the front and rear end sides of the second transport line and the self-propelled vehicle. 5. The component assembling apparatus according to claim 4 , further comprising a transfer device that can transfer the carrier.

  That is, the carrier transfer between the second transport line side and the self-propelled vehicle is performed by a transfer device that moves laterally toward the track and moves backward. For this reason, at the time of the above-mentioned transfer, there is no need for a complicated movement operation such as retreating the self-propelled vehicle with respect to one direction of the circulation direction. Is enough. Therefore, the moving operation of the self-propelled vehicle can be simplified, and the assembling work can be further facilitated accordingly.

  Regarding the component assembling apparatus of the present invention, the first and second components can be transported in parallel and in one direction, respectively, and when the first and second components are assembled to each other in these transport states, In order to realize the purpose of facilitating the assembly work, the best mode for carrying out the present invention is as follows.

That is, the component assembling apparatus includes: a first conveyance line that allows the first component to be conveyed at a first conveyance speed in one direction among the first component and the plurality of second components to be assembled with each other; A second transfer line that extends in parallel with the first transfer line and that enables the second parts to be transferred in the one direction at the second transfer speed. Each of the first component and the second component is sequentially assembled in a plurality of assembly areas set sequentially in the one direction. The relative positions of the first component conveyed by the first conveying line and the second component conveyed by the second conveying line in the one direction can be changed in the respective assembling areas. The relative speed between the first and second parts is variable.

  In order to explain the present invention in more detail, an embodiment thereof will be described with reference to the accompanying drawings.

  1-3, the code | symbol 1 is the components assembly apparatus 1 about the motorcycle 2 which is an example of a vehicle.

  The motorcycle 2 includes a first part 3 and a plurality of second parts 4 that are assembled together. Specifically, the first part 3 is a vehicle body 5. The vehicle body 5 includes a vehicle body frame 6, a front fork 7 supported on the front end portion of the vehicle body frame 6, a front wheel 8 supported on the lower end portion of the front fork 7, and an upper end portion of the front fork 7. A handle 9 to be supported, a rear wheel 10 supported on the rear end side of the body frame 6, and an engine (not shown) supported by the body frame 6 are provided.

  The second part 4 is an air cleaner 13, a battery 14, a rear fender 16 to which a tandem seat 15 is already attached, a seat 17, a fuel tank 18, and another second part 19. In particular, a bolt screw hole 22 is formed at the rear end portion of the vehicle body frame 6, and a bolt insertion hole 23 is formed at the front end portion of the rear fender 16. Then, by inserting a bolt (not shown) into the bolt insertion hole 23 and screwing the bolt into the bolt screw hole 22, the rear fender 16 can be assembled to the vehicle body frame 6.

  A first transport line 26 that enables the first part 3 to be transported in a horizontal direction A at a first transport speed V1, and extends in parallel with the first transport line 26, and the second parts 4 are A second transport line 27 that can be transported in the one direction A at the second transport speed V2 is provided.

  The first transport line 26 is a slat conveyor. The first transfer line 26 extends in the one direction A and is installed on a stationary work surface 28 on the stationary side, and a base 29 (not shown) provided at the front and rear ends of the base 29. An endless belt 30 having a chain conveyor structure wound around front and rear pulleys, and a first electric motor 31 that drives the upper surface side forward movement portion of the endless belt 30 in the one direction A at the first conveying speed V1. A support 32 for supporting the first part 3 in an upright manner on the endless band 30 by attaching the front wheel 8 of the first part 3 to the upper surface of the forward movement portion of the endless band 30 in a detachable manner. I have.

  The second transport line 27 is located above the first transport line 26, extends in the one direction A, and is supported by a stationary member 34 such as a structure. A rotating shaft 37 having an axis 36 parallel to the one direction A, and a rotating shaft 37 supported by the stationary member 34 so as to be rotatable around the axis 36. And a variable-speed second electric motor 39 for rotating the rotary shaft 37 around the axis 36 by a B-rotation.

  A plurality of first, second, third,..., N−1, nth assembly areas 42, sequentially in the space along the first and second transport lines 26, 27 toward the one direction A, 43, 44... 45, 46 are set. The first component 3 and the second component 4 can be sequentially assembled in the plurality of assembly regions. In this case, the rotating shaft 37, the bearing 38, and the second electric motor 39 are provided independently of each other in each of the assembling areas 42, 43, 44,. That is, the rotation B speed of each rotary shaft 37 can be individually changed by driving each second electric motor 39.

  A plurality of a pair of transport carts 48 that are movable in the one direction A at the second transport speed V2 in association with the rotation B of the rotary shaft 37 are provided. The quantity of the pair of transport carts 48 is equal to the quantity of the assembling areas 42-46. Each transport carriage 48 includes a chassis 50 supported on the rail 35 by a plurality of (four) wheels 49, a support body 52 supported on the chassis 50 via a spring 51, and an axis 53 thereof. And a plurality of (four) rollers 54 supported by the support 52 so as to be capable of rotating C.

  Each roller 54 has elasticity as a whole. The outer peripheral surface of each roller 54 is pressed against the outer peripheral surface of the rotating shaft 37 by the urging force of the spring 51. The axis 53 of each roller 54 is inclined with respect to the axis 36 of the rotary shaft 37. When the rotation shaft 37 is rotated B by the driving of the second electric motor 39, the rollers 54 can be rotated C in conjunction with the rotation shaft 37 by the friction bonding. And each said conveyance trolley | bogie 48 is moved toward the one direction A by the component force to the said one direction A in the said friction joining.

  In the above case, each conveyance carriage 48 is sequentially given the component force from each rotary shaft 37 and continuously moves on the rail 35 from the first assembly area 42 toward the nth assembly area 46. It is done. Further, the second transport speed V2 of the transport carriage 48 heading in the one direction A can be changed in each of the assembling areas according to the rotational B speed of the respective rotating shafts 37.

  The second conveying line 27 extends continuously from the front end (downstream end) in the one direction A, and extends away from the first conveying line 26 in a plan view of the component assembling apparatus 1 (FIG. 2). A front conveyance line 57 having the same configuration as that of the second conveyance line 27 is provided. Further, the second transfer line 27 continuously extends from the rear end (upstream end) in the one direction A, and is separated from the first transfer line 26 in a plan view of the component assembling apparatus 1 (FIG. 2). A rear transfer line 58 having the same configuration as the second transfer line 27 is provided. In addition, the rotating shaft 37 of the bending part in the said front and back conveyance lines 57 and 58 is formed of the flexible tube.

  In FIG. 1, each of the second parts 4 is detachably supported and is transported sequentially in the one direction A in this order by the rear transport line 58, the second transport line 27, and the front transport line 57. A plurality of possible carriers 60 are provided.

  The carrier 60 is suspended from the pair of transport carriages 48, and is supported by the base 61 so that the air cleaner 13, the rear fender 16, the seat 17, and the fuel tank 18 can be detached. A support body 62 that is supported in a suspended manner, another support body 63 that is supported by the base body 61 and that supports the battery 14 so as to be detachable, and a support body 62 that is supported by the base body 61 via the mesh body 64. The second part 19 is further provided with another support body 65 that detachably supports the second part 19.

  The other support body 63 includes a support rod 67 extending linearly downward from the base body 61, a lift body 68 supported by the support rod 67 so as to be movable up and down, and supporting the battery 14. And a retractor 69 that elastically urges the elevating body 68 to move up. The urging force of the retractor 69 and the total mass of the lifting body 68 and the battery 14 are balanced, and the battery 14 is positioned at a predetermined height above the first part 3.

  In FIG. 4, if the battery 14 is removed from the lifting body 68, the burden on the retractor 69 is reduced by the mass of the battery 14. Therefore, the lifting body 68 is raised by the urging force of the retractor 69, and a wider working space is secured between the first component 3 and the lifting body 68.

  In FIGS. 1 and 4, the other support body 65 includes a support bar 67, an elevating body 68, and a retractor 69 having the same configuration as described above. The mesh body 64 is supported by the lift body 68, and the mesh body 64 and the lift body 68 are elastically biased by the retractor 69 so as to rise. The action of the retractor 69 is the same as that of the other support 63 (FIG. 4).

  In FIG. 2, the carrier 60 transported to the front end side (downstream end side) in the one direction A of the second transport line 27 is directed toward the rear end side (upstream end side) of the second transport line 27. There are provided a plurality of self-propelled vehicles 72 that move in the forward direction D so as to be transported and move backward E in a non-transport state of the carrier 60 from the rear end side to the front end side of the second transport line 27.

  Specifically, the self-propelled vehicle 72 transfers the carrier 60 transported by the transport carriage 48 to the extended end of the front transport line 57 that is the front end side of the second transport line 27. The forward movement D is performed so as to transport toward the extended end of the rear transport line 58 that is the rear end side of the second transport line 27. Further, the self-propelled vehicle 72 moves backward E from the extended end portion side of the rear transfer line 58 toward the extended end portion of the front transfer line 57.

  The self-propelled vehicle 72 moves around along a ring-shaped track 73 set on the work surface 28, so that the self-propelled vehicle 72 performs the forward and backward movements D and E described above. Yes. The track 73 extends along a magnetic tape that is detachably installed (attached) at a desired position on the work surface 28. The self-propelled vehicle 72 detects the magnetic force of the magnetic tape and moves along the track 73.

  On the work surface 28, a component rack 74 for storing the second components 4 is provided. The track 73 is set so that the self-propelled vehicle 72 that moves forward D passes through the vicinity of the side of the component rack 74. During the forward movement D of the self-propelled vehicle 72, the second parts 4 on the component rack 74 can be sequentially supported by the operator's work with respect to the carrier 60 conveyed by the self-propelled vehicle 72. .

  A virtual extension line 75 is set for the rotation shaft 37 of the extended end portion of the front transfer line 57 in the adjacent region of the extended end portion of the front transfer line 57 that is the front end side of the second transfer line 27. A portion 76 of the track 73 is arranged in parallel with the virtual extension line 75. Then, the vehicle travels laterally from the virtual extension line 75 toward a portion 76 of the track 73 and moves backwards F and G between the extended end of the front transport line 57 and the self-propelled vehicle 72. There is provided a transfer device 77 that can transfer the carrier 60.

  2, 5, and 6, the rotation shaft 37 at the extended end of the rear transfer line 58 is adjacent to the extension end of the rear transfer line 58 on the rear end side of the second transfer line 27. The virtual extension line 80 is set. The other part 81 of the track 73 is arranged in parallel to the other virtual extension line 80. Then, the vehicle travels laterally from the other virtual extension line 80 toward the other part 81 of the track 73, and moves backwards H and I, and the extended end of the rear transfer line 58 and the self-propelled vehicle 72 are moved. There is provided another transfer device 82 that allows the carrier 60 to be transferred to and from.

  5 and 6, the self-propelled vehicle 72 includes a carriage 85 that can move on the work surface 28 in any direction. The carriage 85 includes a chassis 86 and a plurality of wheels 87 that support the chassis 86 on the work surface 28. These wheels 87 are driven by an electric motor (not shown) so that the cart 85 can be self-propelled and can be automatically steered so that the cart 85 moves along the track 73.

  The self-propelled vehicle 72 includes a rail 35, a rotating shaft 37, and a bearing 38, which are supported by the chassis 86, and a positive B driving the rotating shaft 37 around the axis 36 to be rotated B. And a third electric motor 88 that can be reversed. Then, in conjunction with the rotation B of the rotary shaft 37 driven by the third electric motor 88, the pair of transport carriages 48 can move back and forth in the axial direction of the rotary shaft 37.

  2, 5, and 6, the transfer devices 77 and 82 are respectively the virtual extension lines 75 and 80 and the portions 76 and 81 of the track 73 in a plan view of the component assembly device 1 (FIG. 2). A support rail 91 extending in a direction orthogonal to the stationary side member 34 and extending in the longitudinal direction of the support rail 91 from the virtual extension lines 75 and 8 to the portions 76 and 81 of the track 73. A self-propelled movable base 92 supported so as to enable forward movements F and H and backward movements G and I; a rail 35 having the same configuration as described above supported by the movable base 92; a rotating shaft 37; A bearing 38 and a fourth electric motor 93 capable of rotating forward and backward to drive the rotary shaft 37 around the axis 36 are provided. Then, in conjunction with the rotation B of the rotary shaft 37 driven by the fourth electric motor 93, the pair of transport carriages 48 can move back and forth in the axial direction of the rotary shaft 37.

  Of the second transport line 27, the front and rear transport lines 57 and 58, the self-propelled vehicle 72, and the transfer devices 77 and 82, any two devices are adjacent in the axial direction of the rotary shafts 37, When the axis 36 of each of these rotary shafts 37 is located on the same axis, the second to fourth electric motors 39, 88, 93 in the two devices are driven, and the rotary shafts 37 of these two devices are set to the axis thereof. By rotating B around 36 in the same direction, the transfer carriage 48 can be transferred from one of these two devices to the other.

  In each of the assembling areas 42 to 46, the first position sensor 96 that detects the position in the one direction A of the first component 3 that is transported by the first transport line 26 and the second transport line 27 are transported. A second position sensor 97 that detects the position of one of the second components 4 in the one direction A is provided. Further, the first and second electric motors 31 and 39 are electronically controlled based on the detection signals of the sensors 96 and 97, so that the first part 3 and the second part 4 are relative to each other in the assembling areas. A control device 98 for determining the position is provided.

  Specifically, the first position sensor 96 is fixed to the base 29 of the first transport line 26 by a fastener 99 in each of the assembly areas 42 to 46. The second position sensor 97 is fixed to the rail 35 of the second transport line 27. A relative position between the first position sensor 96 and the second position sensor 97 in the one direction A is determined in advance as a reference relative position L0. The position of the first position sensor 96 can be arbitrarily changed to a desired position in one direction A by an operation on the fastener 99. Thereby, the relative position of the first position sensor 96 with respect to the second position sensor 97 can be selected between the long relative position L1 and the short relative position L2.

  The first position sensor 96 detects that the support 32 that has been transported along with the first component 3 in the one direction A by the first transport line 26 has reached the detection position of the first position sensor 96. To do. That is, the position of the first component 3 is detected via the support tool 32. On the other hand, the second position sensor 97 detects that the base body 61 of the carrier 60 transported in the one direction A by the second transport line 27 has reached the detection position of the second position sensor 97. . That is, the position of one of the second components 4 among the second components 4 is detected via the base 61 of the carrier 60.

  In the above case, the base sides of the first and second transfer lines 26 and 27 and the front and rear transfer lines 57 and 58 are installed on the work surface 28 on the first floor. Each extended end side and the track 73 for the self-propelled vehicle 72 are installed on the work surface 28 on the second floor, which is one step higher than the first floor. For this reason, midway portions in the longitudinal direction of the front and rear transport lines 57 and 58 are inclined in the height direction.

  The operation of assembling the first component 3 and the plurality of second components 4 by the component assembling apparatus 1 will be described.

  1 and 2, the first component 3 is conveyed toward the one direction A at a first conveyance speed V1 with a predetermined interval.

  2, 5, and 6, the self-propelled vehicle 72 is moved forward D on a track 73 on the outer side of each component rack 74. During the forward movement D, the second parts 4 are sequentially supported at predetermined positions of the carrier 60 supported by the self-propelled vehicle 72. Thereby, the carrier 60 is filled with the second parts 4, and the self-propelled vehicle 72 supporting the carrier 60 is moved on the track 73 toward the other transfer device 82.

  In the other transfer device 82, the movable base 92 is moved backward I to the other virtual extension line 80 (solid line in FIGS. 2, 5, and 6). The self-propelled vehicle 72 that has traveled D on the track 73 toward the other transfer device 82 is stopped when it passes the other part 81 of the track 73 (solid lines in FIGS. 2, 5, and 6). .

  Next, the movable base 92 of the other transfer device 82 is moved forward H onto the other part 81 of the track 73 in a state where the carrier 60 is not supported (the chain line in FIGS. 2 and 5). Then, the carrier 60 in the self-propelled vehicle 72 is transferred onto the movable base 92. Next, the movable base 92 is moved back I on the other virtual extension line 80. Then, the carrier 60 in the movable base 92 is transferred to the rear transfer line 58. On the other hand, the self-propelled vehicle 72 after the carrier 60 is transferred to the movable platform 92 (the chain line in FIGS. 2 and 5) on the other part 81 of the track 73 is transferred when the carrier 60 is not transported. A backward movement E is performed toward the device 77.

  Thereafter, the above operation is repeated, and a plurality of full carriers 60 are sequentially transferred onto the rear transport line 58, and thereafter set in a standby state on the transport line 58.

  The carrier 60 on the rear transport line 58 is sequentially transferred from the rear transport line 58 to the second transport line 27 so as to synchronize with each first component 3 transported by the first transport line 26. 60 is transported at the second transport speed V2 by the second transport line 27. Then, the second components 4 conveyed by the second conveyance line 27 are sequentially assembled in the predetermined assembling areas 42 to 46 with respect to the first components 3 conveyed by the first conveyance line 26.

  When the assembly of each second component 4 to the first component 3 is completed in the n-th assembly area 46, the carrier 60 transported to the front end of the second transport line 27 becomes empty. The carrier 60 is sequentially transferred to the front transfer line 57 and is transferred toward the transfer device 77 by the front transfer line 57. Each carrier 60 is placed in a standby state before the transfer device 77.

  The movable base 92 of the transfer device 77 is moved backward G on the virtual extension line 75 without supporting the carrier 60, and the carrier 60 in an empty state from the front transport line 57 with respect to the movable base 92. Are replaced (solid line in FIG. 2). Next, the movable base 92 is moved forward F over the portion 76 of the track 73 (a chain line in FIG. 2). Then, the carrier 60 in the movable platform 92 is transferred to the self-propelled vehicle 72 that has been stopped when it has passed the portion 76 of the track 73 (solid line in FIG. 2). The self-propelled vehicle 72 is moved forward D toward the component rack 74.

  Thereafter, the above operation is repeated.

  FIG. 7 shows a flowchart of the control of the first and second transport lines 26 and 27 by the control device 98, and each S in the figure indicates each step of the program.

  As indicated by a solid line in FIG. 1, the relative position between the first position sensor 96 and the second position sensor 97 is set to a reference relative position L0. According to the setting of the reference relative position L0, the first component 3 conveyed by the first conveyance line 26 and a part of the second component 4 conveyed by the second conveyance line 27 (specifically Specifically, the air cleaner 13, the battery 14, the seat 17, the fuel tank 18, and the other second component 19) are a certain assembly area (for example, the first to third, n−1, The desired relative position is maintained in the nth assembly area 42-46).

  That is, when the relative positions of the first and second position sensors 96 and 97 are set to the reference relative position L0 in each of the assembling areas, the first component 3 is transported by the first transport line 26. It is assumed that the first position sensor 96 detects (ON) that the first part 3 has reached the detection position of the first position sensor 96 (S2). Then, a timer built in the control device 98 starts measuring time (S3). Thereafter, it is assumed that the second position sensor 97 detects (ON) that a part of each second component 4 has reached the detection position of the second position sensor 97 (S4). Then, the timing of the timer ends (S5).

  If the time measured by the timers S3 and S4 is within a predetermined range, it is determined that the desired relative position is maintained, and the first transport speed V1 and the second transport speed V1 of the first transport line 26 are determined. The second transport speed V2 of the transport line 27 is not changed and is maintained at a constant speed.

On the other hand, when the measured time T exceeds the predetermined range, it is determined that a desired relative position is not maintained because a part of each of the second parts 4 is too late with respect to the first part 3. . Then, the relative speed between the first and second parts 3 and 4 is changed. Specifically, the first transport speed V1 is kept constant so as to recover the excessive delay, while the second electric motor 39 is driven at an increased speed, that is, the second transport speed V2 is increased ( S6). Thereby, a desired relative position is maintained for the first component 3 and a part of each second component 4.

In S2, when the first position sensor 96 does not detect the first component 3, the second position sensor 97 detects (ON) the position of each second component 4 (S7). In this case, it is determined that a desired relative position is not maintained because a part of each of the second parts 4 advances too much with respect to the first part 3. Then, the relative speed between the first and second parts 3 and 4 is changed. Specifically, the first transport speed V1 is kept constant so as to correct the excessive travel, while the second electric motor 39 is stopped, that is, the second transport speed V2 is once set to zero. (S8).

  Next, assuming that the first position sensor 96 detects (ON) the first component 3, the second electric motor 39 is driven at a constant speed (S10). Thereby, a desired relative position is maintained for the first component 3 and a part of each second component 4.

  Then, as described above, in a certain assembling area, a desired relative position is maintained for the first component 3 and a part of each second component 4, so that the first component 3 and each second component 4 are maintained. Assembling with each other can be facilitated.

  On the other hand, as shown by the one-dot chain line in FIG. 1, in the other assembly area in the one direction A (for example, the assembly area between the third assembly area 44 and the n-1 assembly area 45), the first The position sensor 96 is repositioned to set a long relative position L1. According to the setting of the long relative position L1, the other part (specifically, of the first part 3 transported by the first transport line 26 and the second part 4 transported by the second transport line 27) Specifically, the rear fender 16) maintains the desired relative position in the other assembly area.

  That is, in the set state of the long relative position L1, the first component 3 is transported by the first transport line 26 and the second component 4 is transported by the second transport line 27. 4, the desired relative position is maintained between the first part 3 and the other part of each second part 4 in the other assembly area, as shown in FIG. 4. Specifically, the bolt screw hole 22 in the first part 3 and the bolt insertion hole 23 of the rear fender 16 which is the other part of each second part 4 are located at substantially the same position in the one direction A, and The operation of assembling the rear fender 16 to the first component 3 with a bolt (the chain line in FIG. 4) can be easily performed.

  Further, as indicated by a two-dot chain line in FIG. 1, the position of the first position sensor 96 is changed at another assembly position to set a short relative position L2. In the setting state of the short relative position L2, if control is performed by the same control device 98 as described above, the first component 3 transported by the first transport line 26 and the transported by the second transport line 27 are performed. Other desired relative positions of the other parts of the second parts 4 are maintained in the further other assembling areas.

According to the above configuration, the relative positions of the first component 3 conveyed by the first conveyance line 26 and the second component 4 conveyed by the second conveyance line 27 in the one direction A are The relative speed between the first and second parts 3 and 4 is made variable so that it can be changed in each assembly area.

Therefore, by changing the relative speed between the first and second parts 3 and 4, the first and second parts 3 and 4 to be assembled with each other in the respective assembling areas are respectively set to desired relative positions. be able to. Further, any other second component 4 is moved to the relative position so as to be separated from the first and second components 3 and 4 in the one direction A, whereby the other second component 4 is moved to the first and second components 3 and 4. It can also be made not to interfere with the assembly of the first and second parts 3 and 4. Therefore, according to the component assembling apparatus 1, the first and second components 3 and 4 can be easily assembled to each other.

  Further, as described above, the second transfer line 27 is disposed above the first transfer line 26.

  For this reason, for example, when various parts (each second part 4) are assembled to the vehicle body 5 (first part 3) from above, as in the assembly work of a normal motorcycle 2, If the component assembling apparatus 1 is applied, the assembly work of the motorcycle 2 can be very easily performed.

Further, as described above, the relative speed between the first and second parts 3 and 4 in each assembly area can be individually changed.

  For this reason, since a desired relative position is obtained in each of the above assembling areas, the assembling work in each of the assembling areas can be performed simultaneously. Therefore, the entire assembly work of the first and second parts 3 and 4 can be performed quickly.

  Further, as described above, the first position sensor 96 that detects the position of the first component 3 conveyed by the first conveyance line 26 in the one direction A, and each second conveyed by the second conveyance line 27. A second position sensor 97 for detecting the position of one of the parts 4 in the one direction A is provided in each of the assembly areas, and the first and second position sensors 96 and 97 are detected. Based on the signal, the relative positions of the first part 3 and the second part 4 in each assembly area are determined, and the relative positions of the first and second position sensors 96 and 97 in the one direction A are determined. Each of the above assembling areas can be changed.

  For this reason, in each said assembly area, when it is going to obtain a desired relative position between the 1st components 3 and any 2nd parts 4 of each 2nd parts 4, in each said assembly area, It is only necessary to physically change the relative positions of the first and second position sensors 96 and 97, respectively. Therefore, also in this respect, the work of assembling the first and second parts 3 and 4 can be facilitated.

  Further, as described above, the carrier 60 that removably supports each second component 4 and that can be transported by the second transport line 27 is provided, and the front end side in the one direction A of the second transport line 27 is provided. The carrier 60 transported in the forward direction D is transported to transport the carrier 60 toward the rear end side of the second transport line 27, while the carrier 60 moves toward the front end side from the rear end side of the second transport line 27. A self-propelled vehicle 72 that moves backward E in a non-conveyed state is provided, and the second parts 4 can be supported by the carrier 60 conveyed by the self-propelled vehicle 72 during the forward movement D of the self-propelled vehicle 72. I have to.

  Here, the moving position of the self-propelled vehicle 72 is easy to set freely. For this reason, during the forward movement D of the self-propelled vehicle 72, the self-propelled vehicle 72 is convenient for supporting the second parts 4 with respect to the carrier 60 conveyed by the self-propelled vehicle 72. It is possible to easily set the forward movement D position of the vehicle 72 to a desired position. Therefore, also in this respect, the above assembling work can be facilitated.

  Further, as described above, the self-propelled vehicle 72 rotates around the ring-shaped track 73 so that the self-propelled vehicle 72 performs the forward and backward movements D and E, and the second transport. Forward movements F and H and backward movements G and I in the lateral direction from above the virtual extension lines 75 and 80 on the front and rear end sides in the adjacent area on the front and rear end sides of the line 27 toward the track 73, Transfer devices 77 and 82 that allow the carrier 60 to be transferred between the front and rear end sides of the second transfer line 27 and the self-propelled vehicle 72 are provided.

  That is, the transfer of the carrier 60 between the second transport line 27 side and the self-propelled vehicle 72 is performed by changing the forward movements F and H and the backward movements G and I in the lateral direction toward the track 73. According to the devices 77 and 82. For this reason, at the time of the transfer, a complicated movement operation such as temporarily retracting the self-propelled vehicle 72 with respect to one direction of the circulation direction is unnecessary, and it is merely moved only in one direction of the rotation direction. Operation is enough. Therefore, the moving operation of the self-propelled vehicle 72 can be simplified, and the assembling work can be further facilitated accordingly.

  In addition, although the above is based on the example of illustration, the said 1st, 2nd components 3 and 4 may be a thing of vehicles other than the motorcycle 2, and may be an electronic, an electric product, an industrial machine, etc.

  Further, the first and second transfer lines 26 and 27 may be arranged in parallel in the horizontal direction. The one direction A is not limited to a straight line and may be bent.

  Further, the work surface 28 provided with the first and second transport lines 26 and 27 and the base side of the front and rear transport lines 57 and 58, and the extended end portions of the front and rear transport lines 57 and 58, respectively. The working surface 28 on which the track 73 for the self-propelled vehicle 72 is installed may be positioned on a single horizontal plane.

In addition, the change of the relative speed between the first and second parts 3 and 4 can be achieved by driving or stopping one of the first motor 31 and the second motor 39 at a constant speed and accelerating the other. Alternatively, it may be obtained by decelerating driving, or may be obtained by accelerating one of the above and decelerating the other.

Further, the front transport line 57 and the rear transport line 58 may not be provided. The relative position of the first and second position sensors 96 and 97 may be changed by changing the position of the second position sensor 97 in one direction A. In addition, the relative positions of the sensors 96 and 97 may be changed only in some of the plurality of assembly areas.

It is the II arrow directional view of FIG. It is a whole plane partial fracture view of a parts assembly device. FIG. 3 is a partially enlarged plan view of FIG. 2. It is a figure in another assembly area, and is a figure corresponding to FIG. FIG. 3 is a partially enlarged plan view of FIG. 2. It is the VI-VI line arrow directional view of FIG. It is a figure which shows the flowchart of control by a control apparatus.

DESCRIPTION OF SYMBOLS 1 Parts assembly apparatus 2 Motorcycle 3 1st part 4 2nd part 26 1st conveyance line 27 2nd conveyance line 28 Work surface 31 1st electric motor 34 Stationary side member 35 Rail 36 Axis 37 Rotary shaft 38 Bearing 39 2nd electric motor 42 1st assembly area 43 2nd assembly area 44 3rd assembly area 45 n-1 assembly area 46 nn assembly area 48 Conveyance carriage 57 Front conveyance line 58 Rear conveyance line 60 Carrier 72 Self-propelled vehicle 73 Track 74 Parts rack 75 Virtual extension line 76 Partial 77 Transfer device 80 Virtual extension line 81 Partial 82 Transfer device 96 First position sensor 97 Second position sensor 98 Controller A One direction B Rotation C Rotation D Forward movement E Reverse movement F Forward movement G Reverse Movement H Forward movement I Reverse movement V1 First transport speed V2 Second transport speed L0 Reference relative position L1 Long relative position L2 Short relative position

Claims (5)

Of the first part and the plurality of second parts to be assembled with each other, the first part is capable of transporting the first part in one direction at the first transport speed, and is parallel to the first transport line. And a second transfer line that enables the second parts to be transferred at the second transfer speed toward the one direction, and a plurality of assembly areas sequentially set toward the one direction. In a component assembly apparatus in which one component and each second component are sequentially assembled,
The relative positions of the first component conveyed by the first conveying line and the second component conveyed by the second conveying line in the one direction can be changed in the respective assembling areas. A component assembling apparatus wherein the relative speed between the first and second components is variable. The component assembling apparatus according to claim 1, wherein the second transfer line is disposed above the first transfer line . A first position sensor for detecting a position in the one direction of the first component conveyed by the first conveyance line; and a second component of any one of the second components conveyed by the second conveyance line. A second position sensor for detecting a position in the one direction is provided in each of the assembly regions, and the first component and the second component in each of the assembly regions are based on detection signals of the first and second position sensors. the so determine the relative position, the first in the one direction, according to mutual relative position of the second position sensor in claim 1 or 2, characterized in that the changeable respectively above each assembly zone Parts assembly equipment. A carrier that supports the second parts in a detachable manner and is transportable by the second transport line is provided, and the carrier transported to the front end side in the one direction of the second transport line is transported to the second transport line. A self-propelled vehicle is provided that moves forward so as to be conveyed toward the rear end side of the line, and moves backward in a state in which the carrier is not conveyed from the rear end side to the front end side of the second transfer line. The component assembly according to any one of claims 1 to 3 , wherein the second components can be supported with respect to the carrier conveyed by the self-propelled vehicle during the forward movement of the vehicle. apparatus. The self-propelled vehicle rotates around a ring-shaped track so that the self-propelled vehicle moves forward and backward as described above, and these adjacent regions on the front and rear end sides of the second transfer line It is possible to transfer the carrier between the front and rear end sides of the second transport line and the self-propelled vehicle by moving back and forth in the horizontal direction from the front and rear end virtual extension lines to the track. The component assembling apparatus according to claim 4 , further comprising:

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