JP5634892B2 - Parts placement device - Google Patents

Description

  The present invention relates to an apparatus for placing electronic components and the like, and more particularly to a component placement apparatus suitable for use in an electronic component mounting apparatus that places and mounts electronic components at predetermined positions on the surface of a printed wiring board. .

  2. Description of the Related Art Conventionally, an electronic component mounting apparatus has been used in order to arrange and mount electronic components at predetermined positions on the surface of a printed wiring board. In general, an electronic component mounting apparatus incorporates a component placement device including a shaft rod that temporarily holds a component to be placed at the lower end, a shaft rod lifting drive means, and a shaft rod rotation drive means. As the shaft rod, for example, a hollow shaft rod connected to a decompression device is used.

  In order to allow the shaft rod to be raised and lowered, for example, a linear motion bearing having a cylindrical body that supports the shaft rod is used in the component placement device, and in order to allow the shaft rod to rotate, for example, the linear shaft is used. A rotary bearing that supports the periphery of a cylindrical body of a dynamic bearing is used.

  When mounting the electronic component, the electronic component mounting apparatus first moves the component placement device above the tray in which the electronic component is accommodated. The component placement device lowers the shaft rod, operates the decompression device to attract (hold) the electronic component to the lower end portion of the shaft rod, and then raises the shaft rod. Next, the electronic component mounting apparatus moves the component placement apparatus above a separately prepared printed wiring board. At this time, the component placement device rotates the electronic component together with the shaft rod and places it in a predetermined direction. Then, the component placement device lowers the shaft rod, raises the shaft rod after placing the electronic component adsorbed on the lower end portion thereof at a predetermined position on the surface of the printed wiring board. By repeating such an operation, a large number of electronic components are mounted on the surface of the printed wiring board.

  In order to efficiently mount a large number of electronic components on the surface of the printed wiring board (in a short time), the component placement device is usually provided with a plurality of shaft bars.

  Patent Document 1 discloses a component placement device (head unit) including a plurality (eg, 10) of shaft rods (drive shafts).

JP 2009-170525 A (FIGS. 2 and 3)

  When the shaft rod of the component placement device is repeatedly raised and lowered over a long period of time, the surface of the shaft rod and the inner surface of the cylinder of the linear motion bearing that supports the shaft rod are worn, and the shaft rod by the cylinder of the linear motion bearing is worn. Support becomes unstable. For this reason, the positioning accuracy when the electronic component held by the shaft rod is arranged on the surface of the printed wiring board is lowered. Therefore, a shaft rod or linear motion bearing that has worn due to long-term use is replaced with another shaft rod or linear motion bearing that does not experience wear (excluding slight wear that does not degrade the positioning accuracy described above). Is done. However, there is a problem that the time required for replacing the shaft rod or the linear motion bearing decreases the operating rate of the electronic component mounting apparatus.

  In addition, for example, even when one of a plurality of shaft rods provided in the component placement device is deformed due to a collision with a surrounding mechanical device or the like and fails, this shaft rod is repaired (usually The mounting of the electronic component may be continued using the remaining shaft rod without replacing the shaft rod or the linear motion bearing to which a large load is applied by the collision with another shaft). Although it is not necessary to stop the operation of the electronic component mounting device for a long time to repair the shaft rod, and the number of shaft rods that can be used for mounting is reduced and mounting efficiency is reduced, the remaining This is because the mounting of electronic components can be continued immediately using the shaft rod.

  The subject of this invention is providing the component arrangement | positioning apparatus which can replace | exchange easily the shaft rod or the linear motion bearing which supports the shaft rod in a short time.

  The present inventor fixed a plurality of linear motion bearings and rotary bearings (shaft bar lifting / lowering means) supporting the shaft bars of the component arrangement device with each other in a positional relationship (for example, an interval between adjacent shaft bars). In this state, the frame body is supported by the frame body, and the frame body can be detached from the base of the component placement device, so that it is not necessary to adjust the positional relationship every time the shaft rod or the linear motion bearing is replaced. In addition, by devising and detaching the connection method between each of the above-described shaft bar up-and-down rotation means and the rotation drive device installed on the base, each shaft bar up-and-down can be removed when removing the frame from the base. Since the time required for removing the rotating means from the rotation driving means and the time required for attaching each shaft bar lifting / lowering rotating means to the rotation driving means when attaching the frame to the base is extremely short, the component placement device Shaft rod or straight Very easy and short time exchange of bearings found that is possible, thereby achieving the present invention.

  The present invention includes a frame, a shaft bar connected in parallel to the frame, connected to a means for temporarily holding a component to be placed, and a cylinder body that supports the shaft bar so as to be movable up and down. A plurality of shaft rod elevating / rotating means including a rotary bearing mounted around the cylindrical body of the dynamic bearing and the linear motion bearing, and a first power transmission means for each of the shaft bar elevating / rotating means supported by the frame A shaft rod raising / lowering rotation mechanism including a rotation transmission means connected via the shaft, a rotation driving means detachably engaged with the rotation transmission means of the shaft rod raising / lowering rotation mechanism via the second power transmission means, and the above A component including a base provided with an elevating drive means arranged in contact with the upper end portion of the shaft rod of the shaft rod lifting / lowering mechanism, wherein the frame body of the shaft rod lifting / lowering mechanism is fixedly supported by the base so as to be detachable In the placement device.

Preferred embodiments of the component placement device of the present invention are as follows.
(1) The rotation transmission means includes a pulley installed on the frame and the second power transmission means includes a belt installed on the base, or the rotation transmission means includes a belt installed on the frame. The second power transmission means includes a pulley installed on the base, and the pulley and the belt are engaged with each other.
(2) The rotation transmission means includes a gear installed on the frame, and the second power transmission means includes a gear installed on the base, and the both gears are engaged with each other.
(3) The shaft rod is hollow, and the means for temporarily holding the parts to be arranged is a pressure reducing device.
(4) The component to be arranged is an electronic component that is incorporated into an electronic device.

  The micro component placement unit of the present invention can replace the shaft rod or the linear motion bearing supporting the shaft rod very easily and in a short time.

It is a perspective view which shows the structural example of the components placement apparatus of this invention. It is a side view of the component arrangement | positioning apparatus 10 of FIG. FIG. 2 is a perspective view of a shaft rod up-and-down rotation mechanism 19 provided in the component placement device 10 of FIG. 1. It is sectional drawing which cut | disconnected the shaft rod raising / lowering rotation means 16 of the right end of the shaft rod raising / lowering rotation mechanism 19 of FIG. 3 along the cutting line IV-IV. It is a figure which shows schematically the structure of the 1st power transmission means 17 and the rotation transmission means 18 of the shaft-rod raising / lowering rotation mechanism 19 of FIG. It is a perspective view which shows the structure of the site | part of the vicinity of the frame support part 41b of the base 41 with which the components placement apparatus 10 of FIG. 1 is provided. It is a figure which shows schematically the structure of the 2nd power transmission means 42 with which the base 41 of the components placement apparatus 10 of FIG. 1 is equipped. However, the second power transmission means 42 in FIG. 7 is shown in a state in which the frame 11 of the shaft rod lifting and lowering rotation mechanism 19 shown in FIG. 1 is removed from the base 41. 5 is a diagram showing the rotation transmission means 18 shown in FIG. 5 and the second power transmission means 42 shown in FIG. 7 in a state in which the frame body 11 of the shaft rod up-and-down rotation mechanism 19 is attached to the base and engaged. is there. It is a figure which shows schematically another structural example of a rotation transmission means and a 2nd power transmission means in the state which engaged both means.

  The component placement apparatus of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view showing a configuration example of a component placement device of the present invention, and FIG. 2 is a side view of the component placement device 10 of FIG.

  The component placement device 10 of the present invention includes a shaft 11 and a shaft 12 connected to a frame 11 and a means (not shown) that is supported in parallel by the frame 11 and temporarily holds a component to be placed. A plurality of shaft rod elevating / rotating means 16 (for example, 6) including a linear motion bearing 14a composed of a cylindrical body 13 that supports the shaft 13 so as to be movable up and down, and a rotary bearing 15 mounted around the cylindrical body 13 of the linear motion bearing 14a. And a shaft bar lifting / lowering rotation mechanism 19 supported by the frame 11 and connected to each of the shaft bar lifting / lowering rotation means 16 via the first power transmission means 17, and The rotation drive means 43 detachably engaged with the rotation transmission means 18 of the shaft rod lifting / lowering mechanism 19 via the second power transmission means 42 and the upper end portion of the shaft rod 12 of the shaft rod lifting / lowering mechanism 19 are in contact with each other. Elevated driving means 44 provided Includes a base 41, it has a configuration in which the frame body 11 of the axle lifting rotation mechanism 19 is detachably fixed and supported on the base 41.

  For example, the component placement apparatus 10 simultaneously adsorbs six components housed in a tray to the lower end portion of each shaft rod 12 and rotates these components together with the shaft rod 12 to place them in a predetermined direction. Apart from the above, it is used by being incorporated in an apparatus that is arranged (accommodated) on a tray.

  Next, the configuration of the shaft bar up-and-down rotation mechanism 19 of the component placement device 10 will be described.

  FIG. 3 is a perspective view of a shaft bar up-and-down rotation mechanism 19 provided in the component placement device 10 of FIG. FIG. 4 is a cross-sectional view of the shaft rod lifting / lowering rotating means 16 at the right end of the shaft rod lifting / lowering rotating mechanism 19 of FIG. 3 cut along the cutting line IV-IV. FIG. 5 is a diagram schematically showing the configuration of the first power transmission means 17 and the rotation transmission means 18 of the shaft rod up-and-down rotation mechanism 19 shown in FIG.

  The shaft rod lifting / lowering mechanism 19 includes a linear motion bearing 14a having a cylindrical body 13 that supports the shaft rod 12 so as to be movable up and down, and a shaft rod lifting / lowering shaft 15 that is mounted around the cylindrical body 13 of the linear motion bearing 14a. A plurality of (for example, six) rotating means 16 are provided. The plurality of shaft rod lifting / lowering means 16 are supported in parallel to the frame body 11.

  As the number of the shaft rod lifting / lowering means 16 increases, components can be arranged more efficiently. However, the configuration of the shaft rod lifting / lowering mechanism 19 becomes complicated. Therefore, the number of the shaft rod lifting / lowering means 16 is normally set to a number in the range of 2 to 50 (preferably 4 to 20).

  The shaft rod 12 of each shaft rod lifting / lowering rotation means 16 extends in the vertical direction, and a part to be arranged is temporarily held at the lower end portion of the shaft rod 12. The shaft 12 is connected to a means (not shown) for temporarily holding a component to be arranged.

  As means for temporarily holding the components to be arranged, the same components as those in the known component arranging device can be used. For example, a decompression device (eg, a known pump represented by an ejector vacuum pump), Alternatively, an electromagnet can be used.

  The shaft rod 12 of the shaft rod lifting / lowering rotation mechanism 19 is hollow, and the upper end portion of the shaft rod 12 is connected to a decompression device (not shown) via a gas passage 31m of a shaft rod support 31 described later. Has been. Then, by operating the above-described decompression device, it is possible to suck (temporarily hold) the component to be placed on the lower end of the shaft 12. It is also possible to fix the suction nozzle to the lower end portion of the shaft rod and connect a decompression device to the side surface of the suction nozzle (that is, connect the shaft rod to the decompression device via the suction nozzle). In this case, the shaft rod need not be hollow.

  The linear motion bearing 14a is comprised from the cylinder 13 which supports the shaft rod 12 and the shaft rod 12 so that raising / lowering is possible.

  A plurality of (for example, four) grooves 12a are formed on the outer circumferential surface of the shaft rod 12 of the linear motion bearing 14a at intervals in the circumferential direction, and the shaft rod is formed on the inner circumferential surface of the cylindrical body 13. A plurality of grooves 13a facing the 12 grooves 12a are formed. A plurality of rolling elements (for example, spheres) 21 are accommodated between the grooves 12 a of the shaft rod 12 and the grooves 13 a of the cylindrical body 13. Since the rolling element 21 engages with each of the groove 12 a of the shaft 12 and the groove 13 a of the cylinder 13, rotation of the shaft 12 in the circumferential direction with respect to the cylinder 13 is limited.

  As the linear motion bearing 14a, a known linear motion bearing in which rotation of the shaft rod in the circumferential direction with respect to the cylindrical body is restricted can be used.

  The configuration of the linear motion bearings 14b, 14c, 14d, 14e, and 14f is the same as that of the linear motion bearing 14a.

  A known rotary bearing 15 is mounted around the cylinder 13 of each linear motion bearing. As shown in FIG. 4, a plurality of (for example, two) rotary bearings 15 can be mounted around the cylindrical body 13.

  When the linear motion bearing supported by the rotary bearing 15, for example, the cylindrical body 13 of the linear motion bearing 14 a is rotated in the circumferential direction, the rotation of the shaft 12 in the circumferential direction relative to the cylindrical body 13 is limited as described above. Therefore, the shaft rod 12 supported by the linear motion bearing 14a can be rotated in the circumferential direction.

  The frame 11 of the shaft rod lifting / lowering mechanism 19 supports rotation transmission means 18 connected to the shaft rod lifting / lowering rotation means 16 via the first power transmission means 17.

  The rotation transmitting means 18 includes pulleys (eg, timing pulleys) 18a and 18b.

  The first power transmission means 17 is disposed below the upper plate 11a of the frame body 11, and is engaged with a pulley (not shown) mounted around the rotation shaft of the pulley 18a. Belts (e.g., timing belts) 17a and 17b, similarly, a pulley (not shown) disposed below the upper plate 11a of the frame 11 and mounted around the rotation shaft of the pulley 18b. Belts 17c and 17d that are engaged with each other, and a pulley 17e that is mounted around the cylinder 13 of the linear motion bearing of each shaft rod up-and-down rotating means 16.

  The belt 17a is mounted on the pulley 17e mounted around the cylindrical body 13 of each of the linear motion bearings 14a and 14b, and the belt 17b is mounted on the periphery of each cylindrical body 13 of the linear motion bearings 14b and 14c. The pulley 17e has a belt 17c on the pulley 17e mounted around the cylindrical body 13 of each of the linear motion bearings 14d and 14e, and the belt 17d extends around the cylindrical body 13 of each of the linear motion bearings 14e and 14f. The pulley 17e is engaged.

  Accordingly, by rotating the pulley 18a of the rotation transmission means 18, each of the linear motion bearings 14a, 14b, 14c connected to the rotation transmission means 18 via the belts 17a, 17b of the first power transmission means 17 is achieved. In total, the three shaft rods 12 supported can be rotated simultaneously. Similarly, by rotating the pulley 18b of the rotation transmission means 18, each of the linear motion bearings 14d, 14e, 14f connected to the rotation transmission means 18 via the belts 17c, 17d of the first power transmission means is obtained. In total, the three shaft rods 12 supported can be rotated simultaneously.

  On the other hand, as shown in FIGS. 3 and 4, each shaft rod 12 is supported by a shaft rod support 31. These shaft bar supports 31 are fixed to each other via a connecting bar 32. By raising and lowering the connecting rod 32, a total of six shaft rods 12 can be raised and lowered simultaneously.

  The shaft rod support 31 includes a cylindrical body 31a that grips the upper end of the shaft rod 12, a rotary bearing 31b that rotatably supports the cylindrical body 31a together with the shaft rod 12, a cylindrical body 31c that is mounted around the rotary bearing 31b, The connecting member 31d provided at the upper part of the cylindrical body 31c, the case 31e installed at the upper part of the connecting member 31d, the spherical body 31g having the screw shaft 31f at the top, and the top and bottom of the spherical body 31g. The two annular bodies 31h that can be finely moved in the radial direction are formed.

  For example, if the shaft rod 12 is directly connected and fixed to the connecting rod 32 without using the shaft rod support 31, the center of the top of the shaft rod 12 fixed to the connecting rod 32 and the frame If the center of the opening 22a of the upper plate 11a of the body 11 and the center of the opening 22b of the lower plate 11b are not precisely aligned, the shaft 12 may be slightly curved. Therefore, when the shaft rod 12 is raised and lowered over a long period of time, the outer peripheral surface of the shaft rod 12 or the inner peripheral surface of the cylinder 13 of the linear motion bearing that supports the shaft rod is unevenly worn, and the shaft rod Alternatively, it is necessary to replace the linear motion bearing at an early stage.

  On the other hand, when the shaft rod 12 is connected to the connecting rod 32 via the shaft rod support 31, the spherical body 31g of the shaft rod support 31 can rotate slightly inside the case 31e, and the above-mentioned The ring body 31h can move slightly in the radial direction of the ring body 31h. For this reason, since the upper end portion of the shaft rod 12 is not firmly fixed to the connecting rod 32, the bending of the shaft rod 12 as described above can be suppressed. Accordingly, uneven wear of the outer peripheral surface of the shaft rod 12 or the inner peripheral surface of the cylindrical body 13 of the linear motion bearing supporting the shaft rod is suppressed, and therefore the frequency of replacement of the shaft rod or the linear motion bearing is reduced. Can do.

  An annular packing 31k is provided between the cylindrical body 31a and the cylindrical body 31c. When the pressure reducing device connected to the gas passage 31m is operated by the packing 31k to depressurize the inside of the shaft rod 12 and the parts are adsorbed to the lower end portion of the shaft rod 12, the above-described cylinders 31a, 31c It is possible to prevent outside air from flowing into the shaft rod 12 from between. Accordingly, the component can be reliably adsorbed to the lower end portion of the shaft rod 12.

  Next, the structure of the base 41 of the component placement apparatus 10 shown in FIGS. 1 and 2, the second power transmission means 42 provided in the base 41, the rotation drive means 43, and the lift drive means 44 will be described. .

  The base 41 is installed on the substrate 41a and the substrate 41a, and is erected on the frame body support portion 41b on which the frame body 11 of the shaft bar up-and-down rotation mechanism 19 is fixedly supported, and on the substrate 41a. Further, the shaft bar lifting / lowering rotation mechanism 19 is provided with a lifting / lowering driving means supporting portion 41c for supporting the lifting / lowering driving means 44.

  The elevating drive means 44 includes a rotation drive device 44a installed on the upper portion of the elevating drive means support portion 41c, a disk 44c fixed to the front end of the rotation shaft 44b of the rotation drive device 44a, and the rotation shaft 44b of the disk 44c. A rod 44e having an upper end connected to a position different from the center position and a lower end connected to the lifting plate 44d and capable of tilting (rotating) around each of the ends; It is comprised from the two linear guides 44f which are equipped in the front surface of the support part 41c and which support the raising / lowering board 44d so that raising / lowering is possible.

  The rod connected to the disk 44c is operated by operating the rotation drive device 44a of the elevating drive means 44 and rotating the disk 44c fixed to the rotation shaft 44b of the rotation drive device 44a clockwise or counterclockwise. 44e moves up and down while tilting. Thereby, the raising / lowering board 44d connected to the lower end part of the rod 44e can be raised / lowered.

  In the component placement device 10, the lifting drive means 44 is placed in contact with the upper end portion of each shaft rod 12 of the shaft rod lifting and lowering rotation mechanism 19 via the shaft rod support 31 and the coupling rod 32, and the coupling rod 32 is moved up and down. The plate 44d is fixed to each other via bolts (FIG. 4:33). Accordingly, by operating the rotation driving device 44a of the lifting drive means 44, a total of six shaft rods 12 provided in the shaft rod lifting and rotating mechanism 19 can be lifted and lowered simultaneously.

  It should be noted that a known linear motion drive device, for example, a linear motion drive device composed of a rotation drive device and a feed screw, or a linear motor may be used in place of the lift drive means 44 described above.

  FIG. 6 is a perspective view illustrating a configuration of a portion in the vicinity of the frame body support portion 41b of the base 41 provided in the component placement device 10 illustrated in FIGS. 1 and 2. FIG. 7 is a diagram schematically showing the configuration of the second power transmission means 42 shown in FIG.

  The frame support part 41 b is composed of a total of six support posts 45 erected on the substrate 41 a and a table plate 46 supported by these support posts 45.

  The table plate 46 is provided with a rotation drive means 43 that is detachably engaged with the rotation transmission means 18 of the shaft rod up-and-down rotation mechanism 19 via the second power transmission means 42.

  The second power transmission means 42 includes a total of eight pulleys 42b, 42c, 42d, 42e, 42f, and 42g that support the belt 42a and the belt 42a disposed below the table plate 46 on the table plate 46. 42h, 42k, arranged above the table plate 46, a pulley 42m mounted around the rotating shaft of the pulley 42b, and a pulley 42p connected to the pulley 42m via a belt 42n. . The pulley 42 p is attached to the rotation shaft of the rotation driving means 43.

  Accordingly, when the rotation driving means 43 is operated, the pulley 42p connected to the rotation driving means 43 via the pulley 42p, the belt 42n, and the pulley 42m is rotationally driven. The belt 42a supported by the pulley travels.

  On the other hand, linear guides 47 and 48 are installed on the upper surface of the table plate 46. The linear guide 47 includes a rail 47a and a slider 47b that can move along the rail 47a. Similarly, the linear guide 48 includes a rail 48a and a slider 48b that can move along the rail 48a.

  A pulley support member 51 is provided on the slider 47 b of the linear guide 47. A shaft bar 53 a is provided on the lower surface of the pulley support member 51. The shaft bar 53a passes through the long hole 46a of the table plate 46, and supports the pulley 42d rotatably at the lower end. Accordingly, the pulley 42d is movable along the rail 47a together with the slider 47b.

  Similarly, a pulley support member 52 is provided on the slider 48 b of the linear guide 48. A shaft bar 53 b is provided on the lower surface of the pulley support member 52. The shaft bar 53b passes through the long hole 46b of the table plate 46, and supports the pulley 42h rotatably at the lower end portion. Accordingly, the pulley 42h is movable along the rail 48a together with the slider 48b.

  Supports 54 a and 54 b are erected on the upper surface of the table plate 46. And the opening part 51a of the said pulley support member 51 and the support | pillar 54a are mutually connected via the tension coil spring (not shown). Similarly, the opening 52a of the pulley support member 52 and the column 54b are connected to each other via a tension coil spring (not shown).

  Therefore, as shown in FIG. 6 and FIG. 7, in the state where the frame body 11 of the above-described shaft rod lifting and lowering rotation mechanism 19 is not mounted on the frame body support 55 installed on the base 41 described later, the pulley 42d and 42h move to the support columns 54a and 54b, respectively, and apply an appropriate tension to the belt 42a so as not to break or loosen.

  Below the table plate 46, there is provided a frame body support 55 for detachably fixing and supporting the frame body 11 of the above-described shaft rod up-and-down rotation mechanism 19.

  The frame body support 55 is provided on the front surface of the case 55a, the case 55a, and two projections 55b for positioning the frame body 11 when the frame body 11 of the above-described shaft rod lifting and rotating mechanism 19 is mounted. And the two hook-shaped arms 55c which hold | maintain the frame 11 temporarily are provided. Each of the two arms 55c is supported by an arm support 55d, and can swing about the base. Each arm 55c is applied with a driving force by a coil spring housed in the arm support 55d so that the tip of the arm 55c moves to the opposite arm side.

  A total of four movable pins 55e are provided on the front surface of the case 55a. Each movable pin 55e is given a driving force so as to move forward by a coil spring housed inside the case 55a.

  Then, when the frame body 11 of the shaft rod lifting and lowering rotation mechanism 19 shown in FIG. 3 is arranged on the front side of the frame body support tool 55 shown in FIG. 6 and the frame body 11 is pressed against the frame body support tool 55, the frame body The positioning projection 55b of the frame support 55 is inserted into the opening 11d formed in the 11 support 11c, whereby the frame 11 is positioned. And as shown in FIG. 1, the front-end | tip part of the collar-shaped arm 55c of the frame body support tool 55 engages with the support | pillar 11c of the frame body 11, and is temporarily fixed so that the frame body 11 may not move to the front side. To do. At this time, the four movable pins 55 e included in the frame body support tool 55 apply a driving force that moves the frame body 11 forward to the support pillar 11 c of the frame body 11. As a result, the front and rear of the support 11c of the frame 11 are closely supported by the arm 55c and the movable pin 55e of the frame support 55, so that the frame 11 can be prevented from finely moving in the front-rear direction.

  As shown in FIGS. 1 and 2, the connecting rod 32 connecting the shaft rod support 31 that supports the upper end portion of each shaft rod 12 of the shaft rod lifting and lowering rotation mechanism 19 is connected to a bolt (FIG. 4). :) is used to connect the shaft rod up-and-down rotating mechanism 19 to the up-and-down driving means 44.

  By such a simple operation, the frame 11 of the shaft rod lifting and lowering rotation mechanism 19 can be easily attached to the base 41 in a short time.

  Further, the connecting rod 32 is removed from the elevating plate 44d of the elevating driving means 44, and then the tip of the arm 55c of the frame support 55 is moved to the opposite side of the opposite arm, thereby supporting the column 11 of the frame 11 By releasing the engagement between the arm 11c and the arm 55c and moving the frame body 11 to the front side, the frame body 11 of the shaft bar lifting and lowering rotation mechanism 19 can be easily detached from the base 41 in a short time. .

  8 shows a state in which the rotation transmission means 18 shown in FIG. 5 and the second power transmission means 42 shown in FIG. 7 are engaged with the frame 11 of the shaft rod lifting and lowering rotation mechanism 19 mounted on the base. FIG.

  As shown in FIG. 8, when the frame body 11 of the shaft rod lifting / lowering mechanism 19 is fixedly supported on the base, the pulleys 18 a and 18 b of the rotation transmitting means 18 of the shaft rod lifting / lowering rotating mechanism 19 become the second power transmitting means 42. The belt 42a is pressed and engaged. At this time, the pulleys 42d and 42h of the second power transmission means 42 are respectively provided with arrows 56a and 56b shown in FIG. 8 so that an appropriate tension is applied so that the belt 42a is not broken or loosened. It moves in the direction shown (the direction opposite to the side of the columns 54a and 54b shown in FIG. 6).

  Therefore, as shown in FIGS. 1 and 2, when the frame body 11 of the shaft bar lifting / lowering rotation mechanism 19 is fixedly supported on the base 41 via the frame body support 55, each shaft bar of the shaft bar lifting / lowering rotation mechanism 19 is supported. The rotation driving means 43 can be immediately connected to the ascending / descending rotation means 16 via the first power transmission means 17, the rotation transmission means 18, and the second power transmission means 42.

  In this way, the component placement apparatus 10 is configured to attach (or remove from) the base body 41 of the frame body 11 of the shaft bar up-and-down rotation mechanism 19 and to rotate and drive the shaft bar up-and-down rotation means 16. Connection to 43 (or removal from the rotation drive means 43) can be performed very easily and in a short time.

  For this reason, for example, when a plurality of the shaft rod lifting / lowering mechanisms 19 are prepared in advance, the shaft rod 12 or the linear motion bearing of the shaft rod lifting / lowering mechanism 19 mounted on the component placement device 10 is replaced. The shaft rod lifting and rotating mechanism 19 is removed from the base 41 together with the frame body 11, and another shaft rod lifting and rotating mechanism is attached to the base 41 together with the frame body, so that the shaft rod or the linear motion bearing can be made extremely simple and short. Can be exchanged in time.

  Further, the positional relationship (for example, adjacent shafts) of the linear motion bearing and the rotary bearing 15 (that is, the shaft rod lifting / lowering means) supporting each shaft rod 12 by the frame 11 of the shaft rod lifting / lowering mechanism 19 is provided. Since the distance between the rods is fixed in advance, it is not necessary to adjust the positional relationship every time the shaft rod or the linear motion bearing is replaced.

  In the component placement device 10 shown in FIGS. 1 and 2, the frame body 11 is fixedly supported on the base 41 using a frame body support tool 55 including two arms 55c. If it is not necessary to attach and detach the frame body 11 frequently, the frame body 11 can be fixed to the base 41 using, for example, a bolt.

  As shown in FIGS. 1 to 8, in the component placement device 10, the rotation transmission means 18 includes pulleys 18 a and 18 b installed on the frame body 11, and the second power transmission means 42 is installed on the base 41. And the pulleys 18a and 18b and the belt 42a are engaged with each other. In contrast, the rotation transmission means includes a belt installed on the frame, the second power transmission means includes a pulley installed on the base, and the pulley and the belt are engaged with each other. May be.

  FIG. 9 is a diagram schematically showing another configuration example of the rotation transmission unit and the second power transmission unit in a state in which both units are engaged.

  As the rotation transmission means 98 shown in FIG. 9, gears 98a and 98b installed on the frame 11 are used, and as the second power transmission means 92, it is installed on the table plate 46 provided in the base. , Gears 92a and 92b mounted on the rotation shafts 93a and 93b of the rotation driving device are used. The configuration of the first power transmission means 17 shown in FIG. 9 is the same as the configuration of the first power transmission means shown in FIG.

  Then, by operating the rotary drive device and rotating the rotary shaft 93a, the rotary shaft 93a is rotated by the gear 92a of the second power transmission means 92, the gear 98a of the rotation transmission means 98, and the first power transmission means. A total of three shaft rods supported by each of the linear motion bearings 14a, 14b, and 14c connected via 17 can be rotated simultaneously.

  Similarly, by operating the rotary drive device and rotating the rotary shaft 93b, the rotary shaft 93b is rotated by the gear 92b of the second power transmission means 92, the gear 98b of the rotation transmission means 98, and the first power transmission. A total of three shaft rods supported by each of the linear motion bearings 14d, 14e, 14f connected via the means 17 can be rotated simultaneously.

  Thus, gears can be used as the rotation transmission means and the second power transmission means. A gear can be used as the first power transmission means.

  Since the component placement device of the present invention has a configuration in which the frame of the shaft bar lifting and lowering rotation mechanism can be attached to and detached from the base, for example, the type of component to be placed or the type of tray that houses the component If there is a change, the shaft bar lifting / lowering rotation mechanism mounted on the component placement device can be immediately replaced with another shaft rod lifting / lowering rotation mechanism prepared in advance. Have.

  For example, the shaft rod lifting / lowering rotation mechanism mounted on the component placement device is housed in a shaft rod lifting / lowering rotation mechanism including a shaft rod having a suction nozzle suitable for holding a specific component at the lower end, or a specific tray. It can be exchanged for a shaft rod lifting / lowering rotation mechanism in which the interval between the shaft rods is set at an interval corresponding to the interval of the parts, or a shaft rod lifting / lowering rotation mechanism having a larger (or fewer) number of shaft rods.

  In the present specification, the component placement device of the present invention has been described by taking the device for placing six components at the same time as shown in FIGS. 1 and 2 as a representative example. As described above, when the shaft rod lifting / lowering rotation mechanism is replaced with another various types of shaft rod lifting / lowering rotation mechanisms, the lifting / lowering driving means is provided for each of the shaft rod lifting / lowering rotation mechanisms in order to further enhance the versatility of the component placement device. The shaft rod can be driven up and down independently (for example, using the same number of lifting drive means as the number of shaft rods, each shaft bar can be driven up and down independently by each lifting drive means), and rotational drive The means is configured such that each shaft rod of the shaft rod lifting and rotating mechanism can be independently driven to rotate (the number of rotation driving means is the same as the number of shaft rods, and each shaft rod is independently rotated by each rotation driving means. Is preferable).

  The component placement device of the present invention is used to place various components represented by electronic components (particularly, electronic components incorporated in various electronic devices), mechanical components, and optical components. Examples of electronic components include minute chip-type electronic components typified by chip capacitors and chip resistors, examples of mechanical components include minute crystal resonators incorporated in watches, and optical components include portable types. A minute optical lens or an optical filter used for a camera mounted on a telephone can be given.

  The component placement device of the present invention includes, for example, a device for mounting a minute chip-type electronic component on the surface of a printed wiring board, a device for mounting a minute optical lens or optical filter at a predetermined position inside a portable telephone, or a tray. It can be advantageously used by being incorporated in a device that moves the micro parts accommodated in the container and accommodates and arranges them in another tray according to the customer's order.

DESCRIPTION OF SYMBOLS 10 Parts placement apparatus 11 Frame 11a Upper plate 11b Lower plate 11c Post 11d Opening 12 Axle rod 12a Groove 13 Cylindrical body 13a Groove 14a, 14b, 14c, 14d, 14e, 14f Linear motion bearing 15 Rotary bearing 16 Means 17 First power transmission means 17a, 17b, 17c, 17d Belt 17e Pulley 18 Rotation transmission means 18a, 18b Pulley 19 Shaft bar lifting / lowering rotation mechanism 21 Rolling elements 22a, 22b Opening 31 Shaft bar support 31a, 31c Cylindrical body 31b Rotating bearing 31d Connection member 31e Case 31f Screw shaft 31g Sphere 31h Annular body 31k Packing 31m Gas passage 32 Connecting rod 33 Bolt 41 Base 41a Substrate 41b Base 41 frame body support 41c Lifting drive means support for base 41 42 Second power transmission means 42a, 42n belt 2b, 42c, 42d, 42e, 42f, 42g, 42h, 42k Pulley 42m, 42p Pulley 43 Rotation drive means 44 Lifting drive means 44a Rotation drive device 44b Rotating shaft 44c Disk 44d Lifting plate 44e Rod 44f Linear guide 45 Column 46 Table plate 46a, 46b Long hole 47, 48 Linear guide 47a, 48a Rail 47b, 48b Slider 51, 52 Pulley support member 51a, 52a Opening 53a, 53b Shaft bar 54a, 54b Post 55 Frame support 55a Case 55b Projection 55c Arm 55d Arm support 55e Movable pin 56a Arrow indicating the moving direction of the pulley 42d 56b Arrow indicating the moving direction of the pulley 42h 92 Second power transmission means 92a, 92b Gears 93a, 93b Rotating shaft 98 Rotating transmission means 98a 98b gear

Claims (4)

A linear motion bearing comprising a frame, a shaft rod connected in parallel to the frame and connected to a means for temporarily holding a component to be arranged, and a cylindrical body that supports the shaft rod so as to be movable up and down; A plurality of shaft bar lifting / lowering means including a rotary bearing mounted around the cylinder of the linear motion bearing, and a first power transmission means for each of the shaft bar lifting / lowering means supported by the frame. A shaft rod elevating and rotating mechanism including a rotation transmitting means connected via the shaft, a rotation driving means detachably engaged with the rotation transmitting means of the shaft bar elevating and rotating mechanism via a second power transmitting means, and A component including a base provided with an elevating drive means arranged in contact with the upper end portion of the shaft rod of the shaft rod up-and-down rotation mechanism, and the frame body of the shaft rod up-and-down rotation mechanism being fixedly supported by the base so as to be detachable a placement apparatus, the rotation transmitting means includes a pulley mounted to the frame, The second power transmission means includes a belt installed on the base, or the rotation transmission means includes a belt installed on the frame, and the second power transmission means includes a pulley installed on the base. And a component placement device wherein the pulley and belt are engaged with each other. A linear motion bearing comprising a frame, a shaft rod connected in parallel to the frame and connected to a means for temporarily holding a component to be arranged, and a cylindrical body that supports the shaft rod so as to be movable up and down; A plurality of shaft bar lifting / lowering means including a rotary bearing mounted around the cylinder of the linear motion bearing, and a first power transmission means for each of the shaft bar lifting / lowering means supported by the frame. A shaft rod elevating and rotating mechanism including a rotation transmitting means connected via the shaft, a rotation driving means detachably engaged with the rotation transmitting means of the shaft bar elevating and rotating mechanism via a second power transmitting means, and A component including a base provided with an elevating drive means arranged in contact with the upper end portion of the shaft rod of the shaft rod up-and-down rotation mechanism, and the frame body of the shaft rod up-and-down rotation mechanism being fixedly supported by the base so as to be detachable a placement apparatus, the rotation transmitting means includes the installed gear frame, or Second power transmission means includes a gear that is placed on the base, and component placement apparatus wherein the two gears are engaged with each other. The component placement device according to claim 1 or 2, wherein the shaft rod is hollow, and the means for temporarily holding the component to be placed is a decompression device. The component placement apparatus according to any one of claims 1 to 3, wherein the component to be placed is an electronic component to be incorporated in an electronic device.

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