JP4422294B2 - Component mounting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  According to the present invention, a plate-like member such as an electronic circuit board is carried into and held in a predetermined work area, and the held plate-like member is unloaded after completion of a predetermined operation such as printing, processing or component mounting. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate-shaped member conveyance holding device and a conveyance holding method, and a component mounting apparatus and a component mounting method to which the plate-shaped member conveyance holding device is applied.
[0002]
[Prior art]
  Circuit forming bodies such as electronic circuit boards (hereinafter referred to as “circuit forming bodies” or “circuit boards”) range from small sizes mounted on mobile phones to large sizes mounted on server computers, etc. Widely exists. In the technical field of a component mounting apparatus for mounting a component such as an electronic component (hereinafter referred to as “component”) on a circuit formed body, it is possible to efficiently mount the component on the circuit formed body with a short tact time. It is requested. Looking at the component mounting apparatuses by form, robot-type component mounting apparatuses that move a work head that adsorbs components by using an XY robot and mount the components at predetermined positions of a circuit forming body are becoming mainstream.
[0003]
  FIG. 13 is a plan view showing an example of a component mounting work area of the robot type component mounting apparatus according to the prior art. Here, the X direction in the figure is a direction in which the circuit forming body is conveyed, and the Y direction is a direction orthogonal to the X direction on the plan view. A direction orthogonal to both the X direction and the Y direction is defined as a Z direction. In the present specification, the X direction is referred to as a first direction, the Y direction is referred to as a second direction, and the Z direction is referred to as a third direction. In the figure, components to be mounted are respectively supplied from taping component supply units 101, 102, and 103 and a tray storage component supply unit 104. The recognition cameras 105 and 106 capture and recognize the component suction posture with the work head before mounting. The nozzle station 107 stores a plurality of nozzles suitable for a plurality of types of components. The loader 108 carries the circuit forming body 109 a into the component mounting work area 100. The conveyance holding device 110 includes support rails 111 and 112, and holds the circuit forming body 109b. The conveyance holding device 110 is configured such that one of the support rails 112 can be moved to a position indicated by a broken line 112a in accordance with the size of the maximum size circuit forming body to be adapted. The unloader 113 carries out the circuit forming body 109b from the component mounting work area 100.
[0004]
  The operation of the component mounting apparatus according to the above configuration will be described with reference to FIG. The circuit forming body 109 a is carried into the component mounting work area 100 via the loader 108 and is held by the transfer holding device 110 including the support rails 111 and 112. A work head (not shown) is transported by the XY robot, moves along a path A shown in FIG. 13, and performs a component mounting operation. That is, the work head first sucks a component from, for example, the taping component supply unit 101 by a nozzle attached to the work head. Next, the work head moves, the recognition posture of the component is imaged by the recognition camera 105, and the position correction calculation is performed based on the imaging result. Then, by further movement of the work head, the sucked component is mounted on the circuit forming body 109b while its position is corrected.
[0005]
  Component supply units 103 and 104 are also provided behind (in the Y direction in the figure) the component mounting work area 100 of the component mounting apparatus as illustrated. The parts sucked by the nozzle of the work head prepared separately from the parts supply part 103 of the taping parts or the parts supply part 104 of the tray storage parts are imaged by the recognition camera 106, and the suction position and orientation are recognized and the position is corrected. After the calculation, it is mounted on the circuit forming body 109b. A path B shown in FIG. 13 indicates a movement path of the parts during this period. The circuit formed body 109b on which the component mounting by both working heads has been completed is then transferred from the conveyance holding device 110 to the unloader 113. The component mounting apparatus repeats the above operations from carrying in the circuit formed body to carrying out the component mounting and circuit formed body after the component mounting.
[0006]
  In recent years, various types of circuit formed bodies have been provided from small to large sizes. Therefore, the support rails 111 and 112 are designed so that the component mounting apparatus can hold the circuit forming body having the maximum size. That is, in the support rails 111 and 112, the support rail 111 on the front side of the component mounting apparatus is fixed, and the support rail 112 on the rear side can be moved according to the size of the circuit forming body. As a result, the rear-side component supply units 103 and 104 are installed further rearward of the rearmost position 112a of the support rail 112. For this reason, when the circuit forming body 109b is small, as shown by the path B, the moving distance of the working head from the suction of the component to the mounting through the recognition is large, which is an obstacle to shortening the mounting tact time. Yes.
[0007]
  In order to eliminate the obstacle, a component mounting apparatus having a component mounting work area as shown in a plan view in FIG. 14 has been proposed. This component mounting apparatus includes two component mounting work areas 201 and 202 that can perform component mounting independently, and the two circuit forming bodies 209b and 209c are arranged with respect to the center point 220 as shown in the figure. It is arranged diagonally symmetrical. After the component mounting is completed in the first component mounting work area 201, further component mounting is performed in the second component mounting work area 202. For this reason, two sets of work heads and their driving units, conveyance holding devices 210a and 210b, recognition cameras 205 and 206, nozzle stations 207a and 207b, and the like are also arranged. The conveyance holding devices 210a and 210b holding the circuit forming bodies 209b and 209c move to positions close to the component supply units 211, 212, and 213 and 214 in the component mounting work areas 201 and 202, respectively, for mounting. As a result, the moving distance of the working head from component supply, recognition and mounting is short, and the mounting tact time can be shortened. As described above, in the component mounting apparatus shown in FIG. 14, various components are provided obliquely symmetrically with respect to the center point 220 of the component mounting work area 200. The loader 208 carries the circuit forming body 209a into the component mounting work area 201, and the unloader 223 carries out the circuit forming body 209c after the completion of the mounting work from the component mounting work area 202. In the loader 208 and the unloader 223, it is not necessary to regulate and hold the circuit forming bodies 209a and 209c, and thus the circuit forming body can be taken out in the Z direction (third direction) at any time. However, there are many cases in which component mounting apparatuses are directly connected and transported without using the loader 208 and the unloader 223 due to demands for space saving and high area.
[0008]
  When the width of the circuit forming body 209 to be mounted is wide, the transport holding devices 210a and 210b increase the width between the support rails so as to hold the wide circuit forming body 209. , 210b overlap each other in the Y direction in the figure, and the circuit forming body 209 cannot be taken out in the transport direction as it is.
[0009]
  FIG. 15 shows the arrangement of the conveyance holding devices 210a and 210b at the time of carrying in and carrying out the circuit forming body in the component mounting apparatus according to the configuration shown in FIG. The first and second transport holding devices 210a and 210b move from the mounting position shown in FIG. 14 in the Y direction and in the direction opposite to the Y direction toward the center point 220, respectively. 210b is arranged in a straight line including the loader 208 and the unloader 223. At this position, the circuit forming body 209d for which the mounting operation has been completed in the second component mounting area 202 is carried into the unloader 223, and the circuit forming body 209b for which the mounting operation has been completed in the first component mounting area 201 is It moves toward the conveyance holding device 210b. The circuit forming body 209a to be mounted next is carried from the loader 208 to the first transport and holding device 210a. As described above, the loader 208 and the unloader 223 are not used in the production line in which the circuit forming body is transported by directly connecting the component mounting apparatuses in order to save space and increase the area. The circuit forming body is directly carried in and out between the conveyance holding devices of the component mounting apparatuses.
[0010]
  FIG. 16 is a perspective view showing an outline of the conveyance holding device 210 used in the component mounting apparatus shown in FIGS. 14 and 15. The conveyance holding device 110 in the component mounting apparatus of the type shown in FIG. 13 has substantially the same configuration, but in the component mounting apparatus of the type shown in FIG. Two of them are provided obliquely symmetrically with respect to the center point 220. In FIG. 16, a pair of support rails 231 and 232 extend along the X direction in the drawing, and each support rail 231 and 232 is opposed to and parallel to the X direction (first direction) of the circuit forming body. A groove 233 that fits and supports a pair of edges extending in the X direction is provided over the entire length in the X direction. An endless conveying and holding belt is fitted along the groove 233, and the circuit forming body 209 is conveyed and held on the conveying and holding belt. Of the pair of support rails 231, 232, the support rail 231 on the front side in the figure is the reference side when adjusting the width between the support rails 231, 232 according to the width size of the circuit forming body 209, Functions as a support rail on the lock side. The support rail 232 on the rear side of the figure functions as a support rail on the moving side for moving according to the width size of the circuit forming body 209.
[0011]
  Further, in FIG. 16, the linear guide member 234 extends in the Y direction (second direction) perpendicular to the longitudinal direction (X direction) of the support rails 231 and 232 in the vicinity of both left and right ends in the X direction of the conveyance holding device 210. It is arranged to exist. The near-side slider 235 is disposed at each lower end of the right-side support column 236a and the left-end support column 236b toward the front-side support rail 231, and moves linearly on each linear guide member 234 to support rails. 231 is guided so that it can be translated along the Y direction. Similarly, the rear slider 237 is disposed at each lower end of the right support column 238a and the left support column 238b of the rear support rail 232, and is supported by linearly moving on each linear guide member 234. The rail 232 is guided so that it can be translated along the Y direction.
[0012]
  The ball screw shaft 241 extends in the direction (Y direction) perpendicular to the longitudinal direction (X direction) of the support rails 231 and 232 in the vicinity of both left and right end portions of the conveyance holding device 210. It arrange | positions upward and the both ends are rotatably supported by each base 242 for conveyance apparatuses. The support rail moving motor 243 drives the ball screw shaft 241 to rotate in forward and reverse rotation directions. The linear guide member 234, the front slider 235, and the rear slider 237 constitute a linear guide mechanism.
[0013]
  The left and right ball screw shafts 241 and 241 are wound with belts via pulleys, and the left and right ball screw shafts 241 and 241 are synchronized with each other through the belts by the rotational drive of the motor 243. It is designed to rotate in the direction. Selection lock mechanisms 245 are respectively provided at portions where the ball screw shaft 241 is fitted to the support columns 236a and 236b of the support rail 231 on the front side in the figure, and this front side is synchronized with the rotation of the ball screw shaft 241. The support rail 231 can be moved in the Y direction, or the support rail 231 can be kept fixed even when the ball screw shaft 241 is selectively rotated. By this selection, the gap between the pair of support rails 231 and 232 can be adjusted according to the width size of the circuit forming body 209. That is, both the support rails 231 and 232 are movable, the support rail 231 can be selected to be fixed or moved, and the support rail 231 can be the reference side (fixed side).
[0014]
  In addition, belt drive shafts 246 and 246 of a conveyance holding belt that conveys the circuit forming body 209 extend along the Y direction. The belt drive shafts 246 and 246 are respectively provided along the longitudinal direction in the grooves 233 of the support rails 231 and 232 to synchronize the conveyance holding belts for carrying the circuit forming body 209 by means of pulleys. And drive in the front-rear direction. The belt driving motor 247 drives the belt holding shafts 246 and 246 in forward and reverse rotations to drive the conveyance holding belts for carrying the circuit forming body 209 in the front-rear direction in synchronization with each other.
[0015]
  Further, in order for the component to be accurately mounted at a predetermined position of the circuit forming body 209, it is desirable that the circuit forming body 209 is supported from below. Therefore, the conveyance holding device 210 includes a support plate 251 having a size equal to or larger than that of the circuit forming body of the maximum size so that the support plate 251 can be moved up and down, and a necessary number of support pins 252 are set on the support plate 251 and the air cylinder 253 is used. The support plate 251 is raised to support the lower surface of the circuit forming body 209 by the support pins 252 and the both sides of the circuit forming body 209 are sandwiched between the grooves 233 and 233 of the support rails 231 and 232 so as to be held in place. ing.
[0016]
  FIG. 17 is a schematic view of the conveyance holding device 210 shown in FIG. In the drawing, the support rails 231 and 232 face each other and extend in the X direction in the drawing, and both the support rails 231 and 232 are provided with grooves 233, respectively, along the grooves 233, endless conveyance holding belts Each 248 circulates. The circuit forming body 209 has both edges fitted into the groove 233, is placed on the two transport holding belts 248, and is transported in the X direction in the figure. A holding plate 254 having an L-shaped cross section is fixed to the upper surface of each support rail 231, 232 by a fixing pin 255, and restricts upward movement of the circuit forming body 209 being conveyed. A support plate 251 that can be moved up and down by driving an air cylinder is disposed below the conveyance holding device 210, and a necessary number of support pins 252 corresponding to the size of the circuit forming body 209 are attached to the support plate 251. ing. After the circuit forming body 209 is transported and the transport holding belt 248 is stopped at a predetermined mounting position, the support plate 251 is lifted, and the circuit forming body 209 is backed together with a part of the support rails 231 and 232 including the transport holding belt 233. By pushing up, the upper surface of the circuit forming body 209 is brought into close contact with the holding plate 254, and the position of the circuit forming body 209 is regulated. At the same time, the plurality of support pins 252 attached to the support plate 251 supports the circuit forming body 209 from the lower side.
[0017]
  In the conveyance holding device 210 shown in FIG. 17, the upper surface side of the circuit forming body 209 is used as a reference surface as described above, but this is reversed and the back surface of the circuit forming body 209 supported by the conveyance holding belt 248 and the support pins 252. May be used as a reference plane, and the holding plate 254 may be lowered to restrict the position of the circuit forming body 209. The support pins 252 support the circuit forming body 209 in this restricted position while the nozzle of the work head performs component mounting, and descend with the support plate 251 after the component mounting is completed. The circuit forming body 209 can be conveyed by circulation.
[0018]
[Problems to be solved by the invention]
  However, the conveyance holding device according to the above-described configuration according to the present proposal has several problems. For example, in the component mounting work area, the circuit forming body 209 is conveyed and held in a state of being sandwiched from both sides by the support rails 231 and 232 provided with the holding plate 254. It cannot be taken out in the direction perpendicular to the main plane of the body 209 (Z direction shown in FIGS. 16 and 17). The groove 233 of the support rails 231 and 232 can be moved and taken out in the conveyance direction of the circuit forming body 209. For example, in the example of the component mounting apparatus of the type shown in FIG. Therefore, in order to take out only a specific circuit forming body (for example, only 109b in FIG. 13), it is necessary to remove the circuit forming body 109 held in the transport holding device 110 after removing it in order, It takes time and effort. In addition, in this specification, the said main plane shall mean the surface where the projection area becomes the maximum among each surface which comprises plate-shaped members, such as a circuit formation body. When the plate-like member is a circuit forming body, the main plane is a plane on which components can be mounted.
[0019]
  In the component mounting apparatus of the type shown in FIG. 14, coupled with the effective use of a compact space, especially in the case of a large circuit forming body, the transport paths of both transport holding devices 210a and 210b are: In this state, they overlap each other in the Y direction, and the circuit forming body 209 cannot be taken out by being moved along the support rail in the transport direction. For example, in FIG. 16, it is possible to increase the width of the conveyance holding device 210 by moving only the support rail 232 that can determine the width of the conveyance holding device 210, and to remove the circuit forming body 209. There arises a problem that all the circuit forming bodies held by the transport holding device 210 come off or fall off and damage parts of the circuit forming bodies.
[0020]
  Therefore, in the conveyance holding device according to the background art, when the component mounting device is stopped due to erroneous mounting or when the power supply is interrupted for some reason, the circuit formed body being processed is inspected or disposed of. Therefore, it took a lot of time and effort to remove it. For example, when it is necessary to take out a circuit forming body in which erroneous mounting or the like has occurred from the production line, it is possible to take out the circuit forming body from there by providing a loader and an unloader before and after the component mounting apparatus. However, this method is unacceptable for production facilities in fields where high area is strongly required because the entire production line becomes long. Further, even if a loader and an unloader are arranged, the circuit forming body is only after the transport path of the transport holding device in the component mounting apparatus is aligned with the loader and unloader and the circuit forming body is moved. Can not be taken out. On the contrary, it is possible to achieve high area by directly connecting multiple component mounting devices without providing a loader and unloader. However, until the production process is completed, take out the circuit formed body in which incorrect mounting has occurred. I can't. In this case, if an attempt is made to take out in the middle of the production process, it takes time and labor, for example, to break out the circuit formed body or to remove parts such as a holding plate of the transport holding device. Further, in the component mounting apparatus in which the two proposed component mounting work areas are arranged obliquely symmetrically, when it is necessary to take out the circuit forming body in the first component mounting area (upstream side), the second component mounting area There has been a problem that it is necessary to wait until the mounting operation on the (downstream side) is completed. In addition, cream solder is printed on the circuit formed body and components are mounted thereon. However, since the cream solder is deteriorated over time, it takes a lot of time to take out the circuit formed body such as a defect. This has the risk of degrading the quality of other non-defective circuit formed bodies.
[0021]
  As described above, the present invention solves the above-described problems, conveys a plate-like member such as a circuit formed body in a direction parallel to the main plane of the plate-like member, and places the plate-like member at a predetermined position. In a transport and holding device and a transport and holding method capable of controlling and holding movement in a direction perpendicular to a plane, the plate-like member can be easily moved from a support rail in a direction substantially perpendicular to the main plane with a simple structure. It is an object of the present invention to provide a transport and holding device and a transport and holding method that can be detached from each other and improve workability.
[0022]
  The present invention also includes a mechanism capable of taking out the circuit formed body held by the transport holding device in the component mounting work area of the component mounting apparatus in a direction perpendicular to the main plane of the circuit formed body. An object is to provide a component mounting apparatus and a component mounting method.
[0023]
[Means for Solving the Problems]
  In the present invention, the above-mentioned problem is solved by removing, opening and closing, or moving the restraining plate fixed to the support rail in the background art with a simple mechanism. Contains content.
[0024]
  That is, a first aspect according to the present invention includes a conveyance holding device that carries a circuit board and regulates and holds the circuit board in a component mounting area, a component supply device that supplies a component to be mounted, In a component mounting apparatus comprising a work head for taking out a component from a component supply device and mounting the component on the circuit board, and a robot for transporting the work head to a predetermined position, the transport device is obliquely symmetric within a component mounting area. A pair of transport holding devices arranged, wherein the component mounting device is configured to independently mount components on a pair of circuit boards regulated and held by the pair of transport holding devices, and the pair of transport holding devices Each of the devices extends in the first direction and includes a pair of grooves in which a pair of edge portions of the circuit board that extend and face each other in a first direction parallel to the main plane of the circuit board is fitted. The support The circuit board is transported in the first direction while restricting movement in a second direction parallel to the main plane and orthogonal to the first direction, and the circuit board is moved to the first direction at a predetermined position. The movement in the third direction perpendicular to the main plane is restricted and held, and the wall surface on the side that restricts the movement of the circuit board in the third direction among the wall surfaces constituting the groove can be retracted. Equipped with a take-out mechanismAnd the pair of conveying and holding devices are configured to perform component mounting on the pair of circuit boards that are regulated and held in an overlapping state in the second direction.The present invention relates to a component mounting apparatus.
[0025]
  The take-out mechanismIs, A mechanism capable of removing the wall surface of the groove on the side that restricts movement of the circuit board in the third direction,A mechanism capable of opening and closing the wall surface of the groove on the side that restricts movement of the circuit board in the third direction, and a groove on the side that restricts movement of the circuit board in the third direction. It can be any mechanism that can slide the wall surface.
[0034]
DETAILED DESCRIPTION OF THE INVENTION
  A conveyance holding device according to a first embodiment of the present invention will be described with reference to the drawings. 1 to 7 show a conveyance holding device 1 according to the present embodiment. FIG. 1 is a plan view of a conveyance holding device 1 having a pair of support rails 2 and 3 extending in the X direction in the figure as main components, and FIG. 2 is the conveyance shown in FIG. 1 viewed from the support rail 3 side. The side view of the holding | maintenance apparatus 1 is shown. The conveyance holding device 1 according to the present embodiment includes a holding plate 4 of one support rail 3 (which is located on the lower side of the drawing in FIG. 1, hereinafter referred to as “support rail 3 with a take-out mechanism”). It is arranged to be movable in the direction opposite to the Y direction (downward in the figure). The belt driving motor 24 rotates the endless conveyance holding belt 11 in the forward and reverse directions.
[0035]
  In the support rail 3 with the take-out mechanism, the holding plate 4 is fixed to the fixing plate 5 with a plurality of fixing pins 6, and this fixing plate 5 is further fixed to the rail body 7 (FIG. 3) is attached to be movable in the direction opposite to the Y direction.
[0036]
  FIG. 3 shows a cross section of the support rail 3 with a take-out mechanism along the line A-A in FIGS. 1 and 2, and shows details of the movable mechanism of the fixed plate 5. In FIG. 3, the rail body 7 is provided with belt grooves 12 a and 12 b for movably storing an endless conveyance holding belt 11. The conveyance holding belt 11 circulates along the belt grooves 12a and 12b, and moves the circuit forming body 13 indicated by a two-dot chain line in a direction perpendicular to the drawing. The rail support plate 10 supports the rail body 7 so that it can be raised and lowered. A support plate 63 is disposed below the support rail 3, and a support pin 65 that supports the circuit forming body 13 from the lower surface when mounting components and an air cylinder 64 that lifts and lowers the support plate 63 are mounted on the support plate 63. Has been.
[0037]
  In the support rail 3 according to the above configuration, when the component is mounted, the board support portion 63 rises due to the extension of the air cylinder 64, contacts the rail body 7, and further pushes up the rail body 7. As a result, the rail body 7 rises with respect to the rail support plate 10 and the circuit forming body 13 placed on the conveyance holding belt 11 is raised. As the circuit forming body 13 rises, the upper surface of the circuit forming body 13 comes into contact with the restraining plate 4, so that the circuit forming body 13 is sandwiched between the restraining plate 4 and the conveyance holding belt 11 of the rail body 7. Be regulated. Support pins 65 abut on the lower surface of the circuit forming body 13 to support the circuit forming body 13 from below.
[0038]
  Here, in FIG. 3, the fixing plate 5 to which the holding plate 4 is fixed is provided with an elongated hole 14, and a washer 8 having a flange portion covering the elongated hole 14 is fitted in the elongated hole 14. . The washer 8 is fitted with a fixing bolt 9 passing through its central axis. The fixing bolt 9 is screwed into a screw hole 15 provided in the rail support plate 10 to fix the washer 8. By managing the dimensional accuracy between the height H of the washer 8 to the lower surface of the flange portion and the height h of the fixing plate 5 where the elongated holes 14 are provided, the fixing plate 5 Within the allowable range, the upper surface of the rail support plate 10 is fixed to the washer 8 so as to be slidable.
[0039]
  FIG. 4 shows a partial plane of the support rail 3 in the vicinity of the cross section shown in FIG. 3. In the figure, the washer 8, the fixing bolt 9, and the broken line provided on the fixing plate 5 enable the above-mentioned sliding movement. In order to clearly show the configuration of the long hole 14 shown, a part of the holding plate 4 is cut out.
[0040]
  FIG. 6 similarly shows a cross section of the support rail 3 with the take-out mechanism along the line BB in FIGS. 1 and 2. In this cross-sectional position, the holding plate 4 is fixed to the fixing plate 5 by fixing pins 6. The L-shaped leaf spring 16 clamped coaxially with the restraining plate 4 by the fixing pin 6 is used when the circuit forming body 13 in contact with the restraining plate 4 for component mounting work descends after the mounting work is completed. The circuit forming body 13 is pushed down so as not to be held in close contact with the holding plate 4. The mechanism for preventing adhesion by the leaf spring 16 can be similarly applied to other embodiments described below.
[0041]
  As described above, the holding plate 5 and the holding plate 4 fixed to the fixing plate 5 are slid relative to the rail support plate 10 and the rail body 7, so that the holding plate 4 and the fixing plate 5 are as shown in FIG. Move to the left in the figure to the positions indicated by the broken lines 4a and 5a. As a result, there is no member that restrains the upper side of the circuit forming body 13, and the circuit forming body 13 can be taken out upward.
[0042]
  When the holding plate 4 and the fixing plate 5 are moved, both the members 4 and 5 can be directly slid manually. However, by providing a simple lever mechanism, the circuit forming body 13 can be taken out. Can be easily. The lever 17 shown in FIGS. 1 and 2 is provided for this purpose, and the center portion of the lever 17 is rotatably fitted to a pin 19 attached to the flange portion 18 of the rail support plate 10. . One end of the lever 17 is rotatably attached to the fixed plate 5 by a pin 21 and the other end of the lever 17 is a free end. On the free end side of the lever 17, a compression type return spring 22 indicated by an imaginary line is provided.
[0043]
  In order to remove the circuit forming body 13 held by the transport holding device 1, the lever 17 is pushed in the direction indicated by the arrow 23 (see FIG. 1) against the return spring 22 by pushing the free end of the lever 17 in the clockwise direction. Since the fixing plate 5 fitted with the pin 21 is slid downward in the drawing and the holding plate 4 attached to the fixing plate 5 is also moved downward at the same time, the circuit forming body 13 can be easily moved. A state that can be taken out can be created. After the circuit board 13 is taken out, the return spring 22 is extended by releasing the free end of the lever 17 so that the fixed plate 5 and the holding plate 4 can be returned to their original positions. The operation of the lever 17 can be automated by using an air cylinder or the like instead of manually, and the operation of taking out the circuit forming body 13 can be made easier.
[0044]
  In order to take out the circuit-formed body 13, the support rail 3 with the take-out mechanism is provided with a moving mechanism of the holding plate 4 according to the above-described configuration, and the other support rail 2 is a holding plate according to the background art as shown in FIG. It is sufficient that 4 be fixed to the support rail body side. However, as with the support rail 3 with the take-out mechanism, the other support rail 2 may of course be provided with a mechanism that allows the holding plate 4 to move. The same applies to each embodiment described below. Furthermore, as described above, in the case where a mechanism that enables the restraining plate 4 to move is provided in any of the support rails 2 and 3, the mechanism that can move according to the present embodiment and the following embodiments. Any of these can be used in any combination.
[0045]
  The configuration shown by the two-dot chain line 14a in FIG. 5 is provided with a notch groove 14a in the fixing plate 5 as an alternative to the long hole 14 provided in the fixing plate 5 described above. By providing such a notch groove 14a, the fixing plate 5 and the holding plate 4 can be completely removed from the support rail body side as well as simply sliding in the direction of the arrow 26. On the contrary, when the fixing plate 5 is attached to the support rail 3, the cutout groove 14 a may be fitted into the washer 8. In this case, it is easy to attach the curved portion as shown by a two-dot chain line in the drawing at the entrance of the notch groove 14a. Further, by providing simple stopper mechanisms 28 as illustrated in FIG. 7 at both ends of the fixing plate 5 in the longitudinal direction, the fixing plate 5 and the holding plate 4 can be prevented from coming out in the direction of the arrow 26 in the figure. By the action of the spring 29 provided in the stopper mechanism 28, the fixing plate 5 can be easily positioned and fixed simply by pushing it in. Conversely, when the fixing plate 5 is removed, the stopper 29 resists the spring 29 and stops. By operating the mechanism 28, it can be removed with one touch.
[0046]
  Next, a transport holding device according to a second embodiment of the present invention will be described with reference to the drawings. FIG. 8 shows a cross section of the support rail 31 with a take-out mechanism used in the conveyance holding device according to the present embodiment. The same elements as those shown in the previous embodiment are denoted by the same reference numerals, and this also applies to each embodiment described below. In the figure, an endless conveying and holding belt 11 circulates in the grooves 12a and 12b provided in the rail body 32, and the circuit forming body 13 indicated by a two-dot chain line is moved in a direction perpendicular to the drawing. At the time of component mounting, the circuit forming body 13 rises together with the rail body 32 as the support plate 63 rises, and the upper surface of the circuit forming body 13 abuts against the restraining plate 33 and the position of the circuit forming body 13 is regulated. The rail support plate 34 supports the rail body 32 so as to be movable up and down, and supports the holding plate 33 rotatably around the hinge pin 36.
[0047]
  Further, a toggle mechanism 37 for fixing the holding plate 33 is attached to the rail support plate 34. In the situation shown by the solid line in FIG. 8, the clamp of the toggle mechanism 37 is pushed in the direction of the arrow 38, and the holding plate 33 is positioned at a position covering the circuit forming body 13 from above. When taking out the circuit forming body 13, the clamp plate of the toggle mechanism 37 is operated in the direction opposite to the arrow 38 to open the holding plate 33 to the state shown by the two-dot chain line 33a. It is possible to take out upward substantially perpendicular to the main plane. After the circuit forming body 13 is taken out, it is possible to return the holding plate 33 to a position where the original circuit forming body 13 is restrained (position indicated by a solid line in the drawing) by a return spring (not shown). However, as shown in the present embodiment, when the position is restricted with the upper surface of the circuit forming body 13 as a reference surface during component mounting, for example, a toggle mechanism 37 as shown in the figure is provided, and the holding plate 33 is securely fixed. It is desirable to maintain accuracy.
[0048]
  Next, a conveyance holding device according to a third embodiment of the present invention will be described with reference to the drawings. FIG. 9 shows a state in which the support rail 40 with the removal mechanism of the transport holding device according to the present embodiment is viewed from the side. In the figure, in the support rail 40 according to the present embodiment, a hinge 41 that rotatably fixes the fixing plate 43 is provided in the Y direction orthogonal to the X direction in the drawing in which the support rail 40 extends. As shown by broken lines 43a and 44a, the fixing plate 43 and the holding plate 44 rotate in the Z direction in the figure perpendicular to the main plane of the held circuit forming body 13, respectively. By this rotation, the holding plate 44 is released from a position covering the upper surface of the circuit forming body 13, and the circuit forming body 13 can be taken out upward (a direction substantially perpendicular to the main plane). The end of the holding plate 44 or the fixing plate 43 opposite to the end of the hinge 41 provided in the X direction is, for example, a simple type that fits into a groove provided on the side surface of the rail holding plate 42. It is preferable to provide a lock mechanism 46 so as to restrict the upward movement of the restraining plate 5 that restricts the position of the circuit forming body 13 when the restraining plate 5 is closed.
[0049]
  Next, a conveyance holding device according to a fourth embodiment of the present invention will be described with reference to the drawings. FIG. 10 shows a cross section of the support rail 51 with a take-out mechanism of the transport holding device according to the present embodiment. In the figure, an endless conveying and holding belt 11 circulates along the grooves 12a and 12b of the rail body 52, and moves the circuit forming body 13 indicated by a two-dot chain line in a direction perpendicular to the drawing. At the time of component mounting, the support plate 63 rises to raise the rail body 52 and the circuit forming body 13, and the upper surface of the circuit forming body 13 comes into contact with the holding plate 53 to position the circuit forming body 13. The rail support plate 54 supports the rail body 52 so as to be movable up and down. A stepped pin 56 is fitted into the rail body 52 from the side facing the rail support plate 54 in the lateral direction (horizontal direction) in the drawing, and is fixed by a nut 57. The stepped bolt 56 is slidably fitted with an L-shaped positioning plate 59 that is pressed to the right in the drawing by a spring 58. The positioning plate 59 restricts the horizontal position of the circuit forming body 13 at the tip of the protruding portion in the horizontal direction provided on the upper side of the drawing.
[0050]
  When it is desired to take out the circuit formed body 13 due to a wrong mounting or the like, the circuit formed body 13 is gripped and the circuit formed body 13 is pushed toward the protruding portion of the positioning plate 59 in the left direction of the drawing, thereby positioning. The plate 59 moves to the left against the pressing force of the spring 58. As a result, the circuit forming body 13 itself also moves in the left direction. As a result, the edge of the circuit forming body 13 fitted in the groove of the support rail on the other side facing the support rail 51 with the take-out mechanism shown in FIG. Therefore, the circuit forming body 13 can be taken out upward (in a direction substantially perpendicular to the main plane) at this portion. After the circuit forming body 13 is taken out, the positioning plate 59 is returned to the original position by the pressing force of the spring 58. When the circuit forming body 13 once taken out is returned to the transporting and holding device again, the reverse procedure of taking out, that is, the positioning plate 59 of the support plate 51 with the taking out mechanism at one edge portion of the circuit forming body 13 is carried out. After the other edge portion of the circuit forming body 13 is pushed into the groove portion of the other support rail, the positioning plate 59 is returned to the original position in accordance with the pressing force of the spring 58. It can be easily fitted into the conveyance holding device.
[0051]
  Next, a transport holding device according to a fifth embodiment of the present invention will be described with reference to the drawings. FIG. 11 shows a cross section of the characteristic portion of the support rail 61 with a take-out mechanism of the transport holding device according to the present embodiment. In the figure, an endless conveying and holding belt 11 circulates along the grooves 12a and 12b of the rail body 62, and the circuit forming body 13 indicated by a two-dot chain line is moved in a direction perpendicular to the drawing. At the time of component mounting, the rail body 62 and the circuit forming body 13 are lifted by the rising of the support plate 63, and the position of the circuit forming body 13 is regulated by the upper surface of the circuit forming body 13 coming into contact with the holding plate 68a. The rail body 62 according to the present embodiment has a J-shaped cross section, and a slope 66 is formed at a portion (left side portion in the figure) that is bent to the side opposite to the side that holds the circuit forming body 13. Yes. The rail support plate 67 supports the rail body 62 so as to be movable up and down.
[0052]
  The fixing plate 69 fixes the holding plate 68, while a part of the fixing plate 69 extends downward to form an inclined surface 71. The fixing plate 69 is in contact with the inclined surface 66 of the rail body 62 described above and constitutes a cam portion therebetween. A stepped shaft 72 is fixed to the rail support plate 67 in the horizontal direction by a nut 73, and the fixed plate 69 is slidably fitted to the stepped shaft 72. A spring 74 is fitted to the stepped shaft 72 and urges the fixing plate 69 away from the side of the rail body 62 that holds the circuit forming body 13. A guide block 75 fixed to the rail support plate 67 restricts the upward movement of the fixed plate 69.
[0053]
  When the support plate 63 rises to restrict the position of the circuit forming body 13 and thereby the rail body 62 also rises, the slope 66 of the rail body 62 rises, and as a result, it is configured with the slope 71 of the fixing plate 69. The cam portion is operated, and the fixed plate 69 is regulated by the stepped shaft 72 and the guide block 75 and moves in the direction of the arrow 76 while pressing the spring 74. As a result, the holding plate 68 fixed to the fixed plate 69 is also moved to the position indicated by a two-dot chain line 68a in the figure. As a result, the moved holding plate 68a covers the upper side of the rising circuit forming body 13 by the rail body 62. Thus, both the circuits 13 and 68a come into contact to regulate the position of the circuit forming body 13.
[0054]
  When it is desired to take out the circuit formed body 13 due to incorrect mounting or the like, the rail body 62 is lowered by operating the air cylinder and lowering the support plate 63, and both the slopes 66 and 69 constituting the cam portion slide. However, the fixing plate 69 moves to the left by the extension force of the spring 74. As a result, the restraining plate 68 releases the restriction above the circuit forming body 13, so that it is possible to take out the circuit forming body 13 (in a direction substantially perpendicular to the main plane).
[0055]
  Next, a sixth embodiment according to the present invention will be described. The present embodiment relates to a transport apparatus that transports a circuit forming body used in a component mounting apparatus. The conveying device according to the present embodiment regulates the movement of the circuit forming body in the direction perpendicular to the main plane of the circuit forming body during the component mounting work, and when taking out the circuit forming body, the circuit forming body And a holding plate that can be retracted from the take-out direction perpendicular to the main plane. By providing the holding plate, it is possible to easily take out the circuit formed body held by the conveyance holding device in the component mounting area for component mounting, and the loss time during component mounting can be greatly reduced. As a specific mechanism for retracting the holding plate, for example, the mechanism described in each of the above-described embodiments can be applied.
[0056]
  Next, a seventh embodiment according to the present invention will be described. The present embodiment relates to a component mounting apparatus including the conveyance holding device according to each of the embodiments described so far. For example, the conveyance holding device according to each embodiment of the present invention is applied to a component mounting apparatus of the type shown in FIG. Accordingly, when it is desired to take out the circuit formed body 109b for reasons such as erroneous mounting, the support rails 111 and 112 of the transport holding device 110 in the component mounting area 100 are stretched over the entire length in the X direction in the drawing as in the background art. It is not necessary to remove the circuit forming body 109b after moving it, and by operating the moving mechanism or opening / closing mechanism of the holding plate shown in each embodiment of the present invention provided on at least one of the support rails 111 of the conveyance holding device. It can be taken out easily. Further, in the case of a conveyance holding device of a type that sequentially conveys a plurality of circuit formed bodies within the component mounting area 100, it is not necessary to sequentially remove all the circuit formed bodies fitted to the support rails 111 and 112, By operating the movement mechanism or opening / closing mechanism of the holding plate shown in each embodiment of the present invention provided on at least one support rail 111 of the holding device, only a specific circuit forming body at an arbitrary position can be easily obtained. It becomes possible to take out.
[0057]
  When the conveyance holding device of each embodiment according to the present invention is applied to the component mounting apparatus of the format shown in FIG. 14, when it is desired to take out the circuit forming body 209b in the component mounting area 201 due to a cause such as erroneous mounting. It is not necessary to move the circuit forming body 209a along the conveyance direction (first direction) of the conveyance holding device 210a as in the background art, and the present invention provided on at least one support rail of the conveyance holding device 210a. By using the movement mechanism or the opening / closing mechanism of the holding plate shown in each embodiment, the circuit forming body 209b can be easily taken out (in the third direction). Further, when the circuit forming body 209b performing the mounting operation is wide and the first transport holding device 210a and the second transport holding device 210b are overlapped in the Y direction in the drawing, the first state is left as it is. The first and second transport and holding devices 210a and 210b are mutually restrained, and the circuit forming body 209b cannot be moved or taken out in the X direction. By using the circuit forming body take-out mechanism shown in each embodiment of the present invention, the circuit forming body 209b can be easily taken out without moving in the X direction, which is particularly advantageous.
[0058]
  FIG. 12 shows a perspective view of a component mounting apparatus of the type shown in FIG. In the figure, the XY robot 261 moves the work heads 262 and 263 independently, and the nozzles 264 of the work heads 262 and 263 respectively move the parts from the component supply units 211, 212, 213, and 214 or the tray supply units 265 and 266. The components are mounted on a pair of circuit forming bodies 209b and 209c which are arranged obliquely symmetrically. In addition, the same code | symbol as FIG. 12 is attached | subjected to the same element shown in FIG. As is apparent from FIG. 14, the circuit forming bodies 209b and 209c are usually located below the work heads 262 and 263. For example, when the power supply is cut off during the component mounting work, the work heads 262 and 263 may stop at a position covering the circuit forming bodies 209b and 209c. When the work heads 262 and 263 stop at this position, the circuit forming body 209 can be easily moved even if the transport holding mechanisms 210a and 210b are provided with the take-out mechanisms as shown in the above-described embodiments. It cannot be taken out. In such a case, the XY robot 261 that transports the work heads 262 and 263 is moved, the work heads 262 and 263 are retracted to a position where there is no obstacle to take-out, and then the circuit forming body is used by using the take-out mechanism. Can be taken out. Alternatively, the circuit forming bodies 209b and 209c are moved in the transport direction (or the opposite direction) along the grooves of the transport holding devices 210a and 210b to a position where the work heads 262 and 263 do not become an obstacle, and then the take-out mechanism is moved. It is good also as taking out a circuit formation body using.
[0059]
  Note that the component mounting apparatus according to the present embodiment is not limited to the application to the type shown in FIGS. 12 to 13 described above, and the component mounting apparatus is configured to transport and hold the circuit formed body. It can be applied to all types of component mounting apparatuses.
[0060]
  Next, an eighth embodiment according to the present invention will be described. In the method for transporting and holding the plate-like member, the present embodiment enables the plate-like member to be transported and held to be taken out in a direction perpendicular to the main plane of the plate-like member within the work area. That is, a plate-like member that carries the plate-like member into the work area, positions and holds the plate-like member during a predetermined work, and carries the plate-like member out of the work area after completion of the work. In this transport and holding method, for example, by applying the plate-shaped member transport and holding device as described in the first to fifth embodiments, the plate-shaped member can be easily taken out in the work area. The efficiency of the method for conveying and holding the plate-like member can be improved. Further, by applying the same application to the component mounting method, it is possible to provide a component mounting method capable of easily taking out the circuit formed body in the component mounting region.
[0061]
  As described above, each embodiment according to the present invention has been described. However, in the transport and holding device and the transport and holding method in the above description, application to the component mounting apparatus and the component mounting method is described as an example. However, the present invention is not limited to the application to the component mounting apparatus and the component mounting method as described above, and generally includes and holds a plate-like member including a circuit forming body in the component mounting apparatus for printing, The present invention can be widely applied to various types of plate-like member carrying and holding devices and carrying and holding methods in which the held plate-like members are unloaded after completion of various predetermined operations such as processing and component mounting.
[0062]
【The invention's effect】
  By carrying out the conveyance holding device and the conveyance holding method according to the present invention, when taking out the plate-like member being conveyed, it does not require time and labor to sequentially feed and remove the plate-like member along the conveyance direction as in the past, The plate member can be easily removed in a direction substantially perpendicular to the main plane of the plate member. This makes it possible to efficiently perform operations for confirming the plate-like member especially after the power is shut off, and improve the operating rate of the apparatus.
[0063]
  In the component mounting apparatus and component mounting method using the transport holding device, it is possible to perform a check operation in a short time by removing the circuit forming body in the component mounting work area after erroneous mounting or power-off. In addition, tact loss can be reduced and the apparatus operating rate can be improved.
[Brief description of the drawings]
FIG. 1 is a plan view showing a conveyance holding device according to an embodiment of the present invention.
FIG. 2 is a side view of the conveyance holding device shown in FIG.
FIG. 3 is a cross-sectional view taken along line AA of the conveyance holding device shown in FIGS. 1 and 2;
4 is a plan view showing the vicinity of the AA line of the transporting and holding apparatus shown in FIGS. 1 and 2. FIG.
FIG. 5 is a plan view showing an alternative of FIG. 4;
6 is a cross-sectional view taken along line BB of the conveyance holding device shown in FIGS. 1 and 2. FIG.
FIG. 7 is a cross-sectional view showing a conveyance holding device according to another embodiment of the present invention.
FIG. 8 is a cross-sectional view showing a conveyance holding device according to still another embodiment of the present invention.
FIG. 9 is a side view showing a conveyance holding device according to still another embodiment of the present invention.
FIG. 10 is a cross-sectional view showing a conveyance holding device according to still another embodiment of the present invention.
FIG. 11 is a cross-sectional view showing a conveyance holding device according to still another embodiment of the present invention.
FIG. 12 is a perspective view showing an example of a component mounting apparatus provided with a conveyance holding device according to the present invention.
FIG. 13 is a schematic plan view showing a component mounting work area of the component mounting apparatus according to the prior art.
FIG. 14 is a schematic plan view showing a component mounting work area of another component mounting apparatus according to the prior art.
15 is a schematic plan view showing a state when the circuit forming body is conveyed in the component mounting work area shown in FIG. 14;
FIG. 16 is a perspective view showing an outline of a conveyance holding device according to a conventional technique.
FIG. 17 is a perspective view illustrating a configuration of a support rail of a conveyance holding device according to a conventional technique.
[Explanation of symbols]
1. 1. Transport / holding device, 2. Support rail, 3. support rail; 4. Retaining plate, Fixing plate, 6. 6. fixing pin; Rail body, 8. Washer, 9. Fixing bolt, 10. 10. Rail support plate Conveyance holding belt, 12a, 12b. 12. groove for conveyance holding belt; Circuit forming body (circuit board), 14. Long hole, 16. Leaf spring, 17. Lever, 18. Flange part, 19. Pin, 21. Pin, 22. Return spring, 28. Stopper mechanism, 31. Support rails, 32. Rail body, 33. Restraining plate, 34. Rail support plate, 36. Hinge pin, 37. Toggle mechanism, 40. Support rails, 41. Hinge, 42. Rail holding plate, 43. Fixing plate, 44. Holding plate, 46. Locking mechanism, 51. Support rails, 52. Rail body, 53. Restraining plate, 54. Rail support plate, 56. Stepped pins, 57. Nut, 58. Spring, 59. Positioning plate, 61. Support rail, 62. Rail body, 63. Support plate, 64. Air cylinder, 65. Support pins, 67. Rail support plate, 68. Restraining plate, 69. Fixing plate, 72. Stepped shaft, 73. Nut, 74. Spring, 75. Guide block.

Claims (2)

A transport holding device that carries the circuit board and regulates and holds the circuit board in the component mounting area;
A component supply device for supplying components to be mounted;
A work head for taking out components from the component supply device and mounting them on the circuit board;
In a component mounting apparatus including a robot that transports the work head to a predetermined position,
The conveyance holding device is composed of a pair of conveyance holding devices arranged obliquely in the component mounting area,
The component mounting device is configured to perform component mounting independently on a pair of circuit boards regulated and held by the pair of transport holding devices,
Each of the pair of transport and holding devices extends in the first direction provided with a groove that fits in a pair of edges of the circuit board facing and extending in a first direction parallel to the main plane of the circuit board. The circuit board is transported in the first direction while restricting movement in a second direction that is parallel to the main plane and orthogonal to the first direction. In the position, the circuit board is restricted and held in a third direction perpendicular to the main plane, and the movement of the circuit board in the third direction is restricted among the wall surfaces constituting the groove. It has a take-out mechanism that can retract the side wall ,
Component mounting, wherein the work head is configured to mount components on the pair of circuit boards that are regulated and held in a state where the pair of conveying and holding devices overlap in the second direction. apparatus.   A mechanism by which the take-out mechanism can remove a wall surface of the groove on a side that restricts movement of the circuit board in the third direction; a side that restricts movement of the circuit board in the third direction Any one of a mechanism capable of opening and closing the wall surface of the groove and a mechanism capable of sliding the wall surface of the groove on the side of restricting the movement of the circuit board in the third direction. The component mounting apparatus according to claim 1, wherein:

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