JP6762532B2 - Anti-board work machine - Google Patents

Description

The present invention relates to a board-to-board working machine for assembling a circuit board constituting an electric circuit.

The following Patent Document 1 describes a board-to-board working machine on which circuit components are mounted to perform work on a circuit board constituting an electronic circuit, and the board-to-board working machine includes, for example, a solder printing machine. There are various types of machines such as adhesive coating machines, component mounting machines, and inspection work machines that inspect the results of their work. There are work machines for substrates that include a work head that is the main body of work and a head moving device that moves the work head to an arbitrary position on a horizontal plane, and includes an adhesive coating machine and parts. Many of the mounting machines, inspection work machines, etc. have such a configuration. Further, as in Patent Document 1 below, when a plurality of anti-board working machines are arranged side by side and an electronic circuit manufacturing line is formed in which circuit boards sequentially pass through these devices to manufacture electric circuits. There is.

Japanese Patent No. 4782210

In the manufacturing work, it has been conventionally desired to improve the productivity (area productivity) with respect to the installation area of the equipment. That is, in order to effectively utilize the floor space in the factory, it is desired to reduce the installation area of the production line, and more specifically, to reduce the installation area of the substrate working machine. The present invention has been made in view of such a situation, and an object of the present invention is to provide a substrate working machine having a reduced installation area.

In order to solve the above problems, the anti-board working machine of the present invention is used.
A head equipped with (A) a work head and (B) an X-direction moving device and a Y-direction moving device that linearly move the work head in each of the two directions orthogonal to each other on the horizontal plane, the X direction and the Y direction. It is configured to include a moving device and (C) an imaging device that is moved together with the work head by the head moving device to image an object of work.
It is assumed that the Y-direction moving device has a Y-direction guide provided so as to extend in the Y-direction, and a Y-direction slide that slides along the Y-direction guide.
The X-direction moving device holds the work head on one side surface in the Y-direction so that the X-direction guide is provided on the Y-direction slide so as to extend in the X-direction and is slidable along the X-direction guide. It is supposed to have an X-direction slide,
It is provided with (a) a base and (b) one or more support members erected on the upper surface of the base, and the erection position of the one or more support members on the base can be changed. Is moved together with the work head by the substrate support device for supporting the substrate on which the is mounted at the tip of the one or more support members erected on the base and the head moving device, and the one or more support members. With a support member holding device that holds and detaches each of the one or more support members in order to change the standing position of the
Consists of including
The support member holding device is housed in the X-direction slide.

In the board-to-board working machine of the present invention, since the support member holding device does not extend rearward, the dimension of the portion that moves in the Y direction together with the Y-direction slide is relatively small, that is, the board-to-board size is relatively small. The size of the work machine itself in the Y direction can be reduced. Therefore, the anti-board working machine of the present invention has a small ground contact area, and by constructing a manufacturing line using the anti-board working machine of the present invention, it is possible to improve the area productivity of the manufacturing line. is there.

It is a side view of the component mounting machine as a board-to-board work machine which is one Embodiment of this invention. It is a figure which shows the main part of the board transfer fixing apparatus included in the component mounting machine shown in FIG. It is a side view which shows the part where the component mounting head shown in FIG. 1 is attached to the left and right slides in an enlarged manner. It is a figure which shows the part where the component mounting head shown in FIG. 1 is attached to the left and right slides from the viewpoint from below. It is a perspective view which shows the front-rear slide shown in FIG. 1 from the viewpoint from the oblique right side of the component mounting machine. It is a perspective view which shows the front-rear slide shown in FIG. 1 from the viewpoint from the oblique left side of the component mounting machine. It is a top view of the component mounting machine shown in FIG. 1, and is a view showing a state in which the front-rear slide is located at the moving end on the rear side. It is sectional drawing of the image pickup apparatus included in the component mounting machine shown in FIG. It is a figure which shows the state which removed the device housed in the left-right slide shown in FIG.

Hereinafter, an example of a substrate working machine according to an embodiment of the present invention will be described with reference to the drawings. In addition to the following embodiments, the present invention can be implemented in a mode in which various modifications are made based on the knowledge of those skilled in the art.

FIG. 1 shows a component mounting machine 10 as a board-to-board working machine according to an embodiment of the present invention. FIG. 1 shows the side surface of the component mounting machine 10 with the exterior panel removed. The component mounting machine 10 includes a base 20, a frame 22 erected on the base 20 (FIG. 1 is a view in which the side surface portion on the front side is removed), and a substrate transfer arranged on the base 20. A component as a work head that holds a fixing device 24 (shown by a broken line in FIG. 1) and a component supplied from a component supply device (not shown) and detaches the component for mounting on the circuit board. It includes a mounting head 26 and a head moving device 28 arranged on the frame 22 to move the component mounting head 26. The left side of the component mounting machine 10 is the front side in FIG. 1, and in the following description, the "left-right direction", "front-back direction (left-right direction in FIG. 1)", and "vertical direction" of the component-mounting machine 10 Is treated as the left-right direction, the front-back direction, and the up-down direction when viewed from the front side of the component mounting machine 10.

Although omitted in FIG. 1, the parts supply device is set on the front side of the parts mounting machine 10. Specifically, it is set on the front side of the base 20. The component supply device is configured to include a plurality of component feeders, and each of the plurality of component feeders is attached to the base 20 side by side in the left-right direction.

FIG. 2 shows a part of the substrate transfer fixing device 24. As shown in FIG. 2, the substrate transfer fixing device 24 includes a substrate transfer device 30 that conveys the circuit board S, and a substrate fixing device 32 that fixes and holds the circuit board S during the component mounting work. .. The board transfer device 30 transports the circuit board S in the left-right direction, and the circuit board S carried into the component mounting machine 10 is transported to a position where the component mounting work is performed, and the circuit is completed. The substrate S is conveyed to the carry-out position from the component mounting machine 10. The substrate transfer device 30 has a pair of conveyors 40, and although detailed description thereof will be omitted, by rotating each conveyor belt of the pair of conveyors 40 by a transfer motor, the substrate transfer device 30 is circulated on the pair of conveyors 40. The structure is such that the circuit board S mounted on the above is conveyed in the left-right direction.

The substrate fixing device 32 fixes and holds the circuit board S transported to the working position by the substrate transport device 30. The board fixing device 32 supports the circuit board S from below by the board support device 50 and clamps the circuit board S by the clamp device 52. The board support device 50 includes a backup table 54 as a base and a plurality of support pins 56 as support members erected on the upper surface of the backup table 54, and a circuit is provided at the tips of the plurality of support pins 56. The lower surface of the substrate S is supported to prevent the circuit board S from bending during component mounting work.

The component mounting head 26 as a working head will be briefly described with reference to FIGS. 3 and 4. FIG. 3 is a side view of the component mounting head 26 with the cover removed, and FIG. 4 is a view of the component mounting head 26 as viewed from below. The component mounting head 26 is a so-called rotary head, and has a revolver 60 that is rotated around a rotation axis, and a plurality of component holders 62 that are held by the revolver 60. Then, the component mounting head 26 holds a plurality of components supplied from the component supply device by each of the plurality of component holders 62 while rotating the revolver 60, and rotates the revolver 60 for the plurality of components. At the same time, it is sequentially mounted on the circuit board S.

The head moving device 28 is a so-called XY type moving device, and includes a front-rear direction moving device 70 that moves the component mounting head 26 in the front-rear direction and a left-right direction moving device 72 that moves the component mounting head 26 in the left-right direction. The front-rear direction moving device 70 includes a front-rear direction guide 82 composed of a pair of guide rails 80 provided so as to extend in the front-rear direction across the front portion 74 and the back surface portion 76 of the frame 22, and the front-rear direction thereof. A front-rear slide 84 that is provided in a state of hanging from the guide 82 and is movable along the front-rear direction guide 82, and a front-rear movement motor for moving the front-rear slide 84 along the front-rear direction guide 82 (not shown). (Omitted) is the main component. Further, as shown in FIGS. 5 and 6, the left-right direction moving device 72 includes a left-right direction guide 92 composed of a pair of guide rails 90 provided on the front surface of the front-rear slide 84 in a state of extending in the left-right direction. It is mainly composed of a left-right slide 94 that can be moved along the left-right guide 92 and a left-right movement motor (not shown) for moving the left-right slide 94 along the left-right guide 92. The left and right slides 94 have a head mounting portion 98 on the front surface thereof, and the component mounting head 26 is detachably attached to the head mounting portion 98. With such a configuration, the head moving device 28 can move the component mounting head 26 to an arbitrary position on the horizontal plane.

That is, in the component mounting machine 10, the front-rear direction moving device 70 functions as a Y-direction moving device, and the left-right direction moving device 72 functions as an X-direction moving device. Therefore, each of the front-back direction guide 82 and the front-back slide 84 is a Y-direction guide and a Y-direction slide, and each of the left-right direction guide 92 and the left-right direction slide 94 is an X-direction guide and an X-direction slide. As described above, in the board-to-board working machine of the present embodiment, the component mounting head 26, which is a working head, is removable. For example, a head for performing adhesive application work and a head for performing inspection work. For example, it can be easily replaced without using tools. By the way, the anti-board working machine of the present invention is not limited to the one in which the working head can be replaced like the anti-board working machine of the present embodiment, and the working head is fixed to the X-direction slide 92. You may.

A cable for supplying electric power to a motor or the like and a control cable such as a signal line for transmitting a control signal are connected to the component mounting head 26 via the left and right slides 94. Specifically, one end of the plurality of cables 100 is connected to the left and right slides 94, and the component mounting head 26 is attached to the head mounting portion 98 of the left and right slides 94, so that the component mounting head 26 can supply electric power to a motor or the like. Control signals and the like are sent.

The plurality of cables 100 extend from the left and right slides 94 so as not to interfere with the movement of the left and right slides 94 in the left-right direction and not to be entangled by the movement of the left and right slides 94. Wired to. Specifically, the plurality of cables 100 are on the front side of the front-rear slide 84, and utilize the space below the front-rear guide 82 and above the component mounting head 26, from the left-right slide 92 to the front-rear slide 84. It is wired to the upper side of. One end 100A of the plurality of cables 100 is fixed to the cable holding member 104 attached to the front-rear slide 84, and the other end 100B side extends in the left-right direction. The other end 100B of the cable 100 is bent 180 ° along the horizontal plane, and the other end 100B is connected to the left and right slides 94. The bent position of the cable 100 is changed when the left-right slide 94 moves in the left-right direction, and the left-right slide 94 is allowed to move smoothly in the left-right direction.

As described above, in the component mounting machine 10, the plurality of cables 100 extending from the left and right slides 94 are on the front side of the front-rear slide 84, and the space below the front-rear direction guide 82 and above the component mounting head 26. Is wired up to the upper side of the front-rear slide 84. For example, there is also a board-to-board working machine in which a cable extending from the left and right slides is wired through the rear side of the front and rear slides. The component mounting machine 10 can reduce the size of the portion that moves in the front-rear direction together with the front-rear slide 84 in the front-rear direction as compared with the anti-board work machine in which the cable is routed through the rear side of the front-rear slide. As a result, the component mounting machine 10 has a smaller dimension in the front-rear direction than the board-to-board work machine in which the cable is routed through the rear side of the front-rear slide. Therefore, the component mounting machine 10 has a smaller installation area than the board-to-board work machine in which the cable is routed through the rear side of the front-rear slide, and the manufacturing line is configured by using the component mounting machine 10. By doing so, the area productivity can be improved.

Further, as shown in FIGS. 3, 5, and 6, the front-rear slide 84 is slidable on the guide rail 80 corresponding to each of the pair of guide rails 80 constituting the front-rear direction guide 82. The guide rail nuts 110 and 112 to be engaged are provided on the upper surface side of the guide rail nuts 110 and 112. That is, the front-rear slide 84 is held by the front-rear direction guide 82 on its own upper side, so that it hangs down from the front-rear direction guide 82. Each of the rear guide rail nuts 112 is provided at the rear upper end of the rib portion 114 projecting toward the rear side of the front / rear slide 84, and functions as an engaging portion.

FIG. 7 shows a plan view when the front-rear slide 84 is located at the moving end on the rear side. A recess 120 is formed in the back surface portion 76 of the frame 22 at a portion where the rear end of each of the pair of guide rails 80 constituting the front-rear direction guide 82 is fixed. Then, when the front-rear slide 84 is located at the moving end on the rear side, the guide rail nut 112 and the rib portion 114 are adapted to enter the recess 120. That is, the component mounting machine 10 has a shape in which the front-rear direction guide 82 protrudes rearward in order to stabilize the posture of the front-rear slide 84 hanging from the front-rear direction guide 82. Since the protruding portion enters the recess 120, the size in the front-rear direction does not increase, and the size is compact.

The component mounting machine 10 also includes a substrate imaging device 130 that images a reference mark or the like attached to the surface of the circuit board S. As shown in FIG. 8, the substrate imaging device 130 reflects the light of the camera 132, the lens 134, the coaxial light source 136 for irradiating the light coaxial with the optical axis of the camera 132, and the coaxial light source 136. The light is coaxial with the optical axis of the camera 132, and includes a half mirror 138 for the camera 132 to capture a transmitted image and a side light source 140 for irradiating the side surface of the object to be imaged with light. Consists of. As can be seen from FIGS. 8 and 9, the optical axis of the camera 132 extends in the vertical direction, and the substrate imaging device 130 is long in the vertical direction.

The substrate imaging device 130 is housed in the left and right slides 94, as shown in FIGS. 3 and 4. More specifically, the left and right slides 94 are generally formed in the shape of a square frame, and as shown in FIG. 9, the substrate imaging device 130 is inserted and fixed therein. Conventionally, there has been an anti-board working machine having a configuration in which an imaging device provided with the optical axis of the camera extending in the front-rear direction is attached to the lower end of a left-right slide. Unlike such a board-to-board work machine, the component mounting machine 10 does not extend rearward, so that the front-rear dimension of the portion that moves in the front-rear direction together with the front-rear slide 84 is relatively small. Can be done.

As shown in FIGS. 4 and 9, the component mounting machine 10 includes a laser sensor 150 as a height sensor for measuring the height of a measurement point or the like on the circuit board S, and a support pin in the substrate support device 50 described above. It is provided with a picker 152 as a support member holding device for holding the support pin 56 when the position of the 56 is changed. The laser sensor 150 measures the height of a measuring point by irradiating a laser beam in the vertical direction and receiving a component of the light reflected by the object. Further, the picker 152 is mainly a telescopic cylinder device as an actuator, and is locked by a claw 146 provided at its tip by applying a pressing force with the support pin 56 inserted in the opening 154. Then, the support pin 56 is held, and when the pressing force is applied again, the lock of the claw 156 is released and the support pin 56 is released. The laser sensor 150 and the picker 152 are housed in the left and right slides 94 together with the substrate imaging device 130. Therefore, since the component mounting machine 10 can accommodate various devices in the left and right slides 94, the portion that moves in the front-rear direction together with the front-rear slides 84 is made compact. Then, by making the portion that moves in the front-rear direction together with the front-rear slide 84 compact, the component mounting machine 10 itself can also be made compact.

10: Parts mounting machine [to board work machine] 20: Base 22: Frame 24: Board transfer fixing device 26: Parts mounting head [Work head] 28: Head moving device 30: Board transfer device 50: Board support device 54: Backup Table [base] 56: Support pin [support member] 70: Front-back direction moving device [Y-direction moving device] 72: Left-right direction moving device [X-direction moving device] 74: Front part 76: Back part 82: Front-back direction guide [Y direction guide] 84: Front and rear slide [Y direction slide] 92: Left and right direction guide [X direction guide] 94: Left and right slide [X direction slide] 100: Cable 112: Guide rail nut [engagement part] 114: Rib part 120: Recess 130: Substrate imaging device [imaging device] 150: Laser sensor [height sensor] 152: Picker [support member holding device]

Claims (2)

A work head that works on the board,
An X-direction moving device and a Y-direction moving device for linearly moving the work head in each of the two directions orthogonal to each other on the horizontal plane, the X direction and the Y direction, are provided, and the work head is placed at an arbitrary position on the horizontal plane. A board-to-board working machine including a head moving device to be moved to a horizontal position and an imaging device moved together with the work head by the head moving device to image an object of the work.
The Y-direction moving device
It is assumed to have a Y-direction guide provided in a state of extending in the Y-direction and a Y-direction slide that slides along the Y-direction guide.
The X-direction moving device
An X-direction guide provided on one surface of the Y-direction slide in the Y-direction so as to extend in the X-direction, and the one-sided surface in the Y-direction that is slidable along the X-direction guide. With an X-direction slide that holds the work head in
It is provided with (a) a base and (b) one or more support members erected on the upper surface of the base, and the erection position of the one or more support members on the base can be changed. Is moved together with the work head by the substrate support device for supporting the substrate on which the is mounted at the tip of the one or more support members erected on the base and the head moving device, and the one or more support members. With a support member holding device that holds and detaches each of the one or more support members in order to change the standing position of the
Consists of including
A board-to-board working machine characterized in that the support member holding device is housed in the X-direction slide . The board working machine
It is configured to include a height sensor that is moved together with the work head by the head moving device and at least measures the height of a measurement point set on the substrate, the height sensor of the X-direction slide. The anti-board working machine according to claim 1, which is contained therein.

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